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EDA Agenda - 05/14/2025AGENDA REGULAR MEETING - ECONOMIC DEVELOPMENT AUTHORITY (EDA) Wednesday, May 14, 2025 – 6:00 p.m. Mississippi Room, Monticello Community Center Commissioners: President Steve Johnson, Vice President Jon Morphew, Treasurer Hali Sittig, Rick Barger, Councilmember Tracy Hinz, Mayor Lloyd Hilgart, Clint Berglof Staff: Executive Director Jim Thares, Rachel Leonard, Angela Schumann, Tyler Bevier, Sarah Rathlisberger 1. General Business A. Call to Order B. Roll Call 6:00 p.m. C. Swearing in of New EDA Commissioner - Oath of Office – Clint Berglof 2. Approval of Agenda Approval of Agenda – EDA members or the Executive Director may add items to the agenda for discussion purposes or approval. The EDA may or may not take official action on items added to the agenda 3. Consent Agenda A. Consideration of Payment of Bills B. Consideration of Approving Workshop Meeting Minutes – April 9, 2025 C. Consideration of Approving Regular Meeting Minutes – April 9, 2025 D. Consideration of Approving Special Meeting Minutes – April 23, 2025 4. Public Hearing A. PUBLIC HEARING – Business Subsidy - Nordic Taphouse – Consideration of EDA Resolution 2025-02 - Façade Improvement Forgivable Loan in the amount of $111,000 ECONOMIC DEVELOPMENT AUTHORITY WORKSHOP MEETING (Academy Room) 4:45 p.m. Block 34 Preliminary Development Agreement Update-Discussion 5:00 p.m. EDA Land Holdings Review and Discussion EDA Regular Meeting Agenda – 05/14/2025 2 5. Regular Agenda A. Consideration of Accepting Phase II Environmental Site Assessment (ESA) 216 Pine Street (Block 34) 6. Other Business A. Consideration of Economic Development Manager’s Report 7. Adjournment Closed Meeting - Consideration of adjourning the Regular Meeting to Closed Session to Develop or Consider Offers or Counteroffers for the Purchase or Sale of Real or Personal Property Pursuant to Minnesota Statute 13D.05, Subdivision 3(c)(3) PID #s 155282000010 - 14.17 acres Legal Description: Outlot A, Great River Addition & Outlot A, Great River Second Addition OATH OF OFFICE STATE OF MINNESOTA ) COUNTY OF WRIGHT ) ss. CITY OF MONTICELLO ) I, Clinton Berglof, do solemnly swear that I will support the Constitution of the United States and the Constitution of the State of Minnesota, and that I will faithfully execute and discharge the duties of the office of Economic Development Authority, in the City of Monticello, Minnesota, according to the law and to the best of my ability and understanding, so help me God. _______________________________ Clinton Berglof Subscribed and sworn to before me this 14th day of May, 2025. _____________________________ Jim Thares, Executive Director OFFICIAL OATH OF CLINTON BERGLOF CITY OF MONTICELLO ECONOMIC DEVELOPMENT AUTHORITY Filed in my office this ______ day of ________________________, 2025. ___________________________________ Jennifer Schreiber City Clerk City of Monticello EDA Agenda: 5/14/2025 3A. Consideration of Approving Payment of Bills Prepared by: Community & Economic Development Coordinator Meeting Date: 5/14/2025 ☐ Regular Agenda Item ☒ Consent Agenda Item Reviewed by: N/A Approved by: Economic Development Manager REFERENCE AND BACKGROUND: Accounts Payable summary statements listing bills submitted during the previous month are included for review. The three disbursements to Block 52 Holdings LLC are related to the EDA Authority Grant which was authorized through the Block 52 Redevelopment Purchase and Development Contract in September 2022. ALTERNATIVE ACTIONS: 1. Motion to approve payment of bills through April 2025 2. Motion to approve payment of bills through April 2025 with changes as directed by the EDA. STAFF RECOMMENDATION: Staff recommend approval of Alternative 1. SUPPORTING DATA: • Accounts Payable Summary Statements for April 2025 User: Printed:04/10/2025 - 12:48PM julie.cheney@monticellomn.gov Transactions by Account Batch:00203.04.2025 Accounts Payable Account Number Vendor AmountGL DateDescription Check No PO No 213-46301-430400 KENNEDY AND GRAVEN CHARTERED118 Broadway Ave E Acquisition 129861 917.0004/15/2025 917.00Vendor Subtotal: 213-46301-430400 KUTAK ROCK LLP Block 34 Redevelopment - Feb 2024 129864 1,508.0004/15/2025 1,508.00Vendor Subtotal: 213-46301-431990 WRIGHT CO RECORDER Agreement Misc A# 1572883 129902 46.0004/15/2025 46.00Vendor Subtotal: 213-46301-437100 WRIGHT CO AUDITOR-TREAS 155-010-034010 - 216 Pine St - 1st & 2nd Half Pmts 129901 620.7604/15/2025 213-46301-437100 WRIGHT CO AUDITOR-TREAS 155-230-034120 - 118 Broadway E - 1st & 2nd Half Pmts 129901 2,952.0004/15/2025 3,572.76Vendor Subtotal: 213-46520-443991 BLOCK 52 HOLDINGS LLC Block 52 - Disbursement #1 (1/3) 129837 104,142.0004/15/2025 104,142.00Vendor Subtotal: 213-46522-443991 BLOCK 52 HOLDINGS LLC Block 52 - Disbursement #1 (1/3) 129837 217,595.0004/15/2025 217,595.00Vendor Subtotal: 213-46534-443991 BLOCK 52 HOLDINGS LLC Block 52 - Disbursement #1 (1/3) 129837 55,663.0004/15/2025 55,663.00Vendor Subtotal: AP-Transactions by Account (04/10/2025 - 12:48 PM)Page 1 Account Number Vendor AmountGL DateDescription Check No PO No Subtotal for Fund: 213 383,443.76 Report Total: 383,443.76 AP-Transactions by Account (04/10/2025 - 12:48 PM)Page 2 User: Printed:05/01/2025 - 11:39AM julie.cheney@monticellomn.gov Transactions by Account Batch:00204.04.2025 Accounts Payable Account Number Vendor AmountGL DateDescription Check No PO No 213-46301-431990 WSB & ASSOCIATES INC Phase II ESA - 216 Pine St - March 2025 0 12,605.5004/29/2025 12,605.50Vendor Subtotal: Subtotal for Fund: 213 12,605.50 Report Total: 12,605.50 AP-Transactions by Account (05/01/2025 - 11:39 AM)Page 1 User: Printed:05/01/2025 - 11:37AM julie.cheney@monticellomn.gov Transactions by Account Batch:00201.04.2025 Accounts Payable Account Number Vendor AmountGL DateDescription Check No PO No 213-46301-433100 US BANK CORPORATE PMT SYSTEMDEED - 2025 MN Redevelopment Conference Registration (TB) 0 225.0004/15/2025 225.00Vendor Subtotal: 213-46301-438200 CITY OF MONTICELLO 216 Pine St (EDA - old Finders Keepers consignmt by old DMV) 0 53.8204/15/2025 213-46301-438200 CITY OF MONTICELLO 130 Broadway E. (EDA strmwtr - formerly the Zoo) 7/3/2019 new fee 0 31.5004/15/2025 85.32Vendor Subtotal: 213-46301-443990 US BANK CORPORATE PMT SYSTEMDOMINOS - Food Special Mtg - EDA 0 87.0004/15/2025 213-46301-443990 US BANK CORPORATE PMT SYSTEMMONTICELLO CHAMBER OF COMMERCE - Chamber Lunch - March (JT) 0 20.0004/15/2025 107.00Vendor Subtotal: Subtotal for Fund: 213 417.32 Report Total: 417.32 AP-Transactions by Account (05/01/2025 - 11:37 AM)Page 1 User: Printed:05/01/2025 - 3:27PM julie.cheney@monticellomn.gov Transactions by Account Batch:00205.04.2025 Accounts Payable Account Number Vendor AmountGL DateDescription Check No PO No 213-46301-431991 DEMVI LLC Parking Lot Maintenance - April 2025 0 213.8604/30/2025 213.86Vendor Subtotal: 213-46301-438100 CENTERPOINT ENERGY 12045691-8 - 216 Pine St 0 361.0804/30/2025 361.08Vendor Subtotal: 213-46301-438100 XCEL ENERGY 101 E 3rd St (216 Pine St) - formerly Finders Keepers 0 65.7304/30/2025 65.73Vendor Subtotal: Subtotal for Fund: 213 640.67 Report Total: 640.67 AP-Transactions by Account (05/01/2025 - 3:27 PM)Page 1 The preceding list of bills payable totaling $397,107.25 was approved for payment. Date: 5/14/25 Approved by:___________________________________________ Hali Sittig - Treasurer MINUTES – (DRAFT) WORKSHOP MEETING - ECONOMIC DEVELOPMENT AUTHORITY (EDA) Wednesday, April 9, 2025 – 4:30 p.m. Academy Room, Monticello Community Center Commissioners Present: President Steve Johnson, Treasurer Hali Sittig, Rick Barger, Lloyd Hilgart, Tracy Hinz Commissioners Absent: Vice President Jon Morphew Staff Present: Executive Director Jim Thares, Angela Schumann, Tyler Bevier 1. Call to Order President Steve Johnson called the workshop meeting of the Monticello Economic Development Authority to order at 4:31 p.m. 2. Roll Call 6:00 p.m. Mr. Johnson called the roll. 3. Discussion – Pre-Application Review – Façade Improvement Forgivable Loan Application – Nordic Restaurant and Taphouse (106 Walnut Street) Tyler Bevier provided an overview of the agenda item to the EDA, staff, and the applicants, Zach and Mike Barthel, who were also in attendance. Jim reminded the EDA members that discussion is regarding Façade Loan pre-application. Financing for this project is unique in that the owner/buyer transaction is a Contract for Deed between Mr. Zach Barthel and Linda Yonak acting on behalf of the Kjellberg family estate with intent to finalize and close on the purchase in early 2026. The property transaction was negotiated and entered into months before application for the façade loan was received. The applicant expressed the desire to build an attractive venue to draw people to the community and specifically to the beautiful downtown location and to complement the new Block 52 project. Councilmember Traci Hinz arrived to the meeting at 4:38 p.m. Executive Director Jim Thares spoke of the proposed improvement cost estimates. He noted that proposed improvements are for all four sides of the building. It was also noted that letter signage placement will be applied to both north and east sides of the building . The building was chosen because of its visible location amid downtown and proximity to fit in with Block 52. History of the building was noted. It was built in 1952 by Mr. Kjellberg’s father. Jim further noted that the project has the potential to give a new look and energy to downtown Monticello. Mr. Barthel indicated that he has a couple of sign quotes as well as a quote from a reputable contractor, Red Letter. Information on the quotes is in the EDA packet. Rick Barger asked where the physical location of the depiction showing signage lettering EDA Workshop Meeting Minutes 04/09/2025 (DRAFT) was placed. Zach Barthel confirmed it to be on the northeast corner of the building. Lloyd Hilgert inquired if the roof repairs qualify as part of the façade program. Angela Schumann stated that of the other items, the applicant has more than enough qualifiers to be eligible and reviewed the guidelines which included the rooftop. Lloyd Hilgert added the railing itself adds aesthetics just as a window could. Angela Schumann indicated that it enhances the roofline. Zach Barthel said with Highway 25 and the location of the park looking up at the building, the railing is a focal point. The rooftop patio is a key feature for Nordic. He also mentioned that the color scheme using black is becoming more popular and referenced a building in Albertville along the freeway as an example. He said the current drab grey color of the Nordic building is a turnoff. The proposed building color was also selected to accommodate a 3-D painted mural to be placed on the north side of the building, making the art piece pop against the dark exterior. Steve Johnson asked about the paint color selection and how it coordinates with the other existing buildings. Zach Barthel noted that Bliss Salon is a black and white building. Angela Schumann also noted that a rooftop patio brings variations to the roofline. Lloyd Hilgert said the rooftop makes it an amenity and adds to the business attractiveness. He referenced other establishments who have faired better by incorporating rooftop patios for their patrons. He said that this rooftop would offer views of the river and West Bridge Park and bring people to Monticello who may never have considered coming to the City. Rick Barger noted that the updated Walnut Street looks very nice and will draw people to that area. Mike Barthel said the color scheme draws attention. Steve Johnson asked if all sides of the building were to be painted. Zach Barthel said that is correct and noted that the old garage doors will be removed and replaced with wallboard and finished with stucco. Rick Barger spoke on the nearby Block 52 apartments and of the intended lighting for the rooftop patio. Zach Barthel said he plans to use simple patio-style string lights. Steve Johnson asked if Nordic has considered an arts grant funding application. Zach Barthel stated he has an active application for a mural on the north wall in the amount of $20,000 for the MontiArts. If the application is denied, he intends to pay for the mural expense out-of-pocket. Mike Barthel said the railings depicted are not the actual railings that will be placed on the patio. Zach Barthel said the signage is boxed lettering, and the logo is a cutout in the side of the stucco. Hali Sittig stated that her business has channel letter signs and a boxed cabinet -style sign and asked if the proposed was along the same idea. Angela Schumann confirmed channel lettering is at the northeast near-roofline corner. Zach EDA Workshop Meeting Minutes 04/09/2025 (DRAFT) 3 Barthel said the logo wolf image cutout might be illuminated with lighting above to shine down on it and is working on the logistics. Steve Johnson asked about potential uplighting. Angela Schumann stated that it is not allowed per the code. Hali Sittig added that channel lighting may “leak out”, causing light pollution. Angela Schumann agreed this is a valid point for discussion regarding the future of the façade program. Zach Barthel stated that he had a conceptual photo of the mural to share with the EDA showing themed northern lights and using florescent paints. Steve Johnson asked if the mural would be illuminated. Zach Barthel said it would not as the colors pop in daylight and nighttime is not right lighting for mural photography. Steve Johnson noted art would make it more than a black building and will create a unique effect on the north side of the building. Zach Barthel has plans to meet with parks staff to discuss a collaboration with MontiArts to host live music on Walnut Street as a community outreach and network for festivities. Zach Barthel stated he is currently coordinating a Monticello country music festival with Sue Seeger of MontiArts for 2027 with various food vendors. Steve Johnson asked about the warehouse-style windows located on the north side of the building and amid the future mural’s layout. Mike Barthel said the windows are deteriorating and will be repaired to code for now. Zach Barthel said he would like to preserve the historic glass, as it is an art piece. Steve Johnson noted the complications related to the Contract for Deed and the recapture- claw back loan provisions upon a title transfer. He said that it will have to be detailed as to how that is handled in the loan agreement. Zach Barthel said he intends to close on the building in January 2026. He shared that he refinanced his own home to pursue the funding for much of the property improvements at Nordic. Steve Johnson stated the conversations help to iron out any “fuzzy” information with intent to protect the applicant against ownership clawback. Jim Thares said he would work with the EDA attorney regarding the agreement verbiage. Lloyd Hilgert said the intent of the verbiage is not insurmountable. Zach Barthel said he is eager to complete the move into the new Nordic building and anticipates his business sales will increase by 50% due to the higher visibility alone. Steve Johnson asked the applicants if they have considered a business plan to consider occupancy costs, revenue and overhead, and cashflow. Zach Barthel states his accountant has the information. Tracy Hinz said she felt that it was an honorable façade proposal and said she would like to see the EDA authorize a loan-grant totaling $111,000. She said it has been a privilege to work with the applicant and it is touching to see his proposed vision focused on benefiting the community. EDA Workshop Meeting Minutes 04/09/2025 (DRAFT) 4. Discussion – UMC – MN-DEED MIF Grant $150,00 Clawback Mr. Thares provided an overview of the agenda item to the EDA and spoke to the history of the requirements of the MIF grant to UMC which is to create new FTE jobs through the expansion. The grant performance timeline has ended and UMC appears to have not met the goal of creating 43 new FTE jobs. The information submitted indicates that they created 20 new FTE jobs. They do have a ton of overtime hours for the current workforce so perhaps that is how they are keeping up with their production levels. A future meeting is planned for more discussion with MN-DEED and UMC staff with the goal of agreeing on suitable acceptable close out processes. A claw back of the grant funding is a potential outcome of the meeting. Jim estimated the claw back may be as much as $150,000 of the original $300,000 grant award. Steve Johnson asked if it was possible to negotiate the claw back amount. Jim Thares said he believed it is not though UMC would have up to 7 years to pay the claw back total. Hali Sittig stated that the applicant is probably aware that the job numbers were not achieved. She feels that they will accept the outcome and move on from whatever MN- DEED’s final decision is. 5. Adjourn The workshop concluded at 5:43 p.m. MINUTES – (DRAFT) REGULAR MEETING - ECONOMIC DEVELOPMENT AUTHORITY (EDA) Wednesday, April 9, 2025 – 6:00 p.m. Mississippi Room, Monticello Community Center Commissioners Present: President Steve Johnson, Treasurer Hali Sittig, Rick Barger, Lloyd Hilgart, Tracy Hinz Commissioner Absent: Vice President Jon Morphew Staff Present: Executive Director Jim Thares, Rachel Leonard, Angela Schumann, Tyler Bevier, Sara Rathlisberger 1. General Business A. Call to Order President Steve Johnson called the regular meeting of the Monticello Economic Development Authority to order at 6:04 p.m. B. Roll Call 6:00 p.m. Mr. Johnson called the roll. 2. Approval of Agenda None 3. Consent Agenda A. Consideration of Payment of Bills B. Consideration of Approving Workshop Meeting Minutes – January 8, 2025 C. Consideration of Approving Regular Meeting Minutes – January 8, 2025 D. Consideration of Approving Regular Meeting Minutes – March 12, 2025 E. Consideration of Approving Workshop Meeting Minutes – March 12, 2025 HALI SITTIG MOVED TO APPROVE THE CONSENT AGENDA. RICK BARGER SECONDED THE MOTION. MOTION CARRIED UNANIMOUSLY, 5-0. 4. Public Hearing None 5. Regular Agenda A. Consideration of Quote from Fossil Industries for Historic Signage Plaques for Completed Façade Improvement Projects (Bliss Salon, Lucille Murray’s Dance Studio, Monticello Dental Clinic) Economic Development Manager Jim Thares presented proposal to purchase three additional signs acknowledging the historic local role of the recently completed façade project buildings. He said that if the EDA approves the design and the cost, the plaque signs will be placed by City staff at the recently completed façade improvement project EDA Regular Meeting Minutes – 04/09/2025 (DRAFT) Page 2 buildings in the downtown, if the property owners consent to this. Rick Barger noted his appreciation of the historical signs used in other communities and feels this is a nice feature. Mayor Lloyd Hilgart asked if a sample of the signs was available to review. Tyler Bevier spoke about the quote from Fossil Industries and displayed a photo of the Monticello- branded plaque placed on the Agosto Law Building in June 2020. Mr. Hilgert said his preference was that it should reflect a more classic bronze-on-black “historic” style plaque, and he pointed out the high contrast of the colors of the building exteriors. Rick Barger agreed that a plaque, in his mind, is not like the depiction, and could envision a classic look that would accompany any building façade. Tracy Hinz suggested replacing the existing sign to match the new plaques once a more favorable design is authorized. Jim Thares noted the salute to history was first initiated when the Agosto building (142 West Broadway) façade project was completed. Steve Johson added that the proposal was approved, but the conceptual design plan was never reviewed by the EDA. Rick Barger agreed to Ms. Hinz’s suggestion to replace the existing signs so they all match. Jim Thares asked if it might be appropriate to table the signage discussion, to obtain new signage quotes and design proposals. To expand on the discussion, Mr. Thares also spoke of the intent to also place a historic sign at the Block 52 building as well. This is part of the projects PUD requirements. Mr. Johnson suggested, with new technology, a QR code might be included to connect the public with information for upcoming generations and for additional information which might not fit on a sign. Mr. Johnson noted the Parks department has implemented this on parks signs along the walking paths said how current literature references online are accessed via QR code for additional reading materials and may be a growing trend. Hali Sittig echoed the support for the bronze on black, raised lettering style for the historical plaques. Steve Johnson suggested using the same style that the State of MN uses on State buildings as it will withstand weather and longevity. A decision on this item was postponed until a future meeting with no set date determined to allow for further discussion and consideration. B. Consideration of CMMA Tour of Manufacturing Sponsorship Opportunity connected to the October 2025 Manufacturer’s Month promotional materials and activities in the amount of $850.00 Jim Thares provided an overview of the agenda item to the EDA and the public. Steve Johnson asked for more background as to why an entire page ad may be needed over a EDA Regular Meeting Minutes – 04/09/2025 (DRAFT) Page 3 half-page, how other communities advertise, and the need for interest to gain attention for attendance. Lloyd Hilgert stated that he benefitted from attending an event of this caliber at another city location in the past and he recognizes the potential for patrons’ attendance and maybe CMMA would consider holding an event in Monticello in the future. He noted that other manufacturers and supporting entities attended the event by means to network and explore expansion opportunities. Steve Johnson suggested using QR codes and attention-grabbing graphics and verbiage through multiple mediums which he believes would be a more successful approach versus a full- or half-page printed advertisement at cost. RICK BARGER MOVED TO AUTHORIZE A SPONSORSHIP OF THE CENTRAL MINNESOTA MANUFACTURER ASSOCIATION (CMMA) TOUR OF MANUFACTURING (TOM) CONNECTED TO THE OCTOBER 2025 MANUFACTURERS MONTH PROMOTIONAL MATERIALS AND ACTIVITIES IN THE AMOUNT OF $850.00. HALI SITTIG SECONDED THE MOTION. MOTION CARRIED UNANIMOUSLY, 5-0. 6. Economic Development Manager’s Report Mr. Thares provided an overview of the agenda item to the EDA and the public . No action was taken on the item. Rick Barger suggested that staff provide information in future agendas related to project construction updates versus the status of economic challenges or issues at the time they present as concerns or issues. 7. Adjournment The EDA adjourned at the regular meeting at 7:00 p.m. and entered into a closed meeting to discuss the agenda items below. Closed Session - Consideration of adjourning to Develop or Consider Offers or Counteroffers for the Purchase or Sale of Real or Personal Property Pursuant to Minnesota Statute 13D.05, Subdivision 3(c)(3) • PID # 155273001010 • PID # 155274001020 MINUTES – (DRAFT) SPECIAL MEETING - ECONOMIC DEVELOPMENT AUTHORITY (EDA) Wednesday, April 23, 2025 – 5:00 p.m. Academy Room, Monticello Community Center Commissioners Present: President Steve Johnson, Treasurer Hali Sittig, Rick Barger, Lloyd Hilgart, Tracy Hinz Commissioners Absent: Vice President Jon Morphew Staff Present: Executive Director Jim Thares, Tyler Bevier, Anne Mueller 1. Call to Order President Steve Johnson called the special meeting of the Monticello Economic Development Authority to order at 5:00 p.m. 2. Roll Call 5:00 p.m. Mr. Johnson called the roll. 3. Approval of Agenda Mr. Johnson suggested prior to the arrival of applicants; questions should be dispersed among the EDA commissioners and then each member could ask a couple of questions of the applicants. 4. Interview of EDA Candidates & Recommendation of Candidate The EDA interviewed two candidates for the vacant EDA Commissioner position , Clinton Berglof and Phil Knutson. It was noted with the candidates that the vacancy occurred at the start of 2025. Following the interviews the EDA discussed the candidates. It was noted that the recommendation of a candidate will need to go to the City Council on May 12, 2025, for approval. The new Commissioner will begin upon Council approval, with a term expiring on December 31, 20230. MOTION BY COMMISSIONER HALI SITTIG TO RECOMMEND THE APPOINTMENT OF CLINTON BERGLOF TO THE ECONOMIC DEVELOPMENT AUTHORITY. RICK BARGER SECONDED THE MOTION. MOTION CARRIED UNANIMOUSLY. 5. Adjourn By consensus, the special meeting of the Monticello EDA was adjourned at 6:24 p.m. EDA Agenda: 05/14/2025 4A. PUBLIC HEARING - Consideration of Resolution 2025-02 approving a Façade Improvement Forgivable Loan to The Nordic Brewing Co LLC DBA Nordic Tap House, 106 Walnut, in the amount of $111,000.00 Prepared by: Community & Economic Development Coordinator; Economic Development Manager Meeting Date: 05/14/2025 ☒Public Hearing ☐Regular Agenda Item Reviewed by: Community Development Director, Finance Director Approved by: City Administrator ACTION REQUESTED Motion to adopt EDA Resolution 2025-02 approving a Façade Improvement Loan to Nordic Brewing Co. LLC DBA Nordic Tap House in the amount of $111,000, contingent upon execution of the required Loan Agreement and Promissory Note by the applicant and compliance with cash match requirements and based on findings to be made by the EDA. REFERENCE AND BACKGROUND The City has received a complete Façade Improvement Forgivable Loan application from The Nordic Brewing Co. LLC DBA Nordic Tap House, located at 106 Walnut. The application submittal follows a December 2023 EDA workshop discussing the potential expansion of the Downtown Façade Improvement Program target area and adoption of an amendment of the Policies at the January 10, 2024, regular meeting. Recently, Zach Barthel, owner of The Nordic Brewing Co LLC DBA Nordic Tap House, submitted a complete Façade Improvement application along with improvement plans and quotes from contractors related to exterior improvements, including: •New channel letter illuminated signage •Extensive Stucco Repair •Exterior Painting The program policy amendments adopted by the EDA in January 2024 grant the EDA the flexibility to approve façade improvements on any or all sides of the building. The amendments also allow flexibility from the requirement for contractor supplied plans versus licensed architectural drawings. The plans submitted by Nordic Brewing Co LLC DBA Nordic Tap House comply with the intent of the amendment. No new renderings are required for historic reference. EDA Agenda: 05/14/2025 Specific materials submitted for EDA review of the proposal include the following:  A completed application with a summary of the proposal  Improvement project quotes (two quotes as required by the program policy were submitted; the best desired quote consistent with policy is included in the packet).  Affidavit or evidence of owner financial (equity) commitment; not completed  Property and ownership information The preferred contractors’ building permit costs are eligible project expenses per the program policy. Please see the project cost breakout below:  Proposed Façade Improvement Costs - $114,503.84 o Exterior Painting - $35,031 o Stucco Repair - $30,566.80 o Framing, Railing, Awnings, Dumpster - $48,916.04  Proposed Signage Improvement Costs - $22,527.24  Building Permit - $2,212.35 (Estimate by City staff)  Total Improvement Project Cost: $139,243.43 As required by the program policy The Nordic Brewing Co LLC DBA Nordic Tap House is required to contribute a minimum 5% match which totals $5,550.00. The Nordic Brewing Co LLC DBA Nordic Tap House has indicated they will meet this requirement through cash payment to the contractor. The Nordic Brewing Co LLC DBA Nordic Tap House will be required to make the initial payment, with proof of such payment to the EDA, prior to release of EDA funds. A public hearing is required as the amount of the loan meets the threshold required for public comment under Minnesota’s Business Subsidy Statute. Consistent with the program policy, the Loan is forgivable with the intent that it becomes a grant to the recipient if certain conditions of property ownership are met. Again, as noted in the Loan Agreement, the loan forgiveness takes place in increments over three years. As you may recall from previous discussions, The Nordic Brewing Co LLC DBA Nordic Tap House property transaction status is through a contract-for-deed with the current fee-title property owner. This transaction is due to be completed in early 2026. The fee title owner, Linda Yonak, has signed the Facade Loan application submittal and will be a signatory to the Loan Agreement and the Promissory Note. The loan covenants language contained in Section 5 applies to both Ms. Yonak as the fee title holder as well as the property buyer (Nordic). The Loan forgiveness or repayment timeline of three years is also shown in Section 5c and 5d. Potential Deviation from Policy -The Downtown Façade Improvement Forgivable Loan Program policy states “Individual loans may be made in an amount ranging from $5,000-$50,000. Loan forgiveness generally takes place over a three-year period with fifty percent (50%) of the award forgiven at the end of the first year, and twenty-five percent (25%) forgiven at the end of years EDA Agenda: 05/14/2025 two and three. The EDA may extend or reduce the forgiveness period based on the dollar amount of the Loan. If the benefitting building is sold within the period of the Loan, the Loan must be repaid. The Applicant must provide at least 5% of the project cost in cash. The Applicant percentage shall be used as the project down-payment, as may be required.” The EDA has not previously approved a facade improvement loan of more than $100,000. In late summer 2024, the EDA awarded a $100,000.00 facade loan to Jon and Lucy Murray for improvements to three sides of the building located at 155 West Broadway housing Lucille Murray’s Dance Studio. Even though improvements at the Nordic building are proposed for all four sides of the structure, it would be a precedent to provide funding exceeding $100,000. Due to that situation, if the EDA chooses to award more than $100,000 in funding to Nordic, staff are recommending that the EDA should identify public community benefit findings as part of any motion authorizing funding exceeding the $100,000 amount. Public benefit findings would include but not be limited to the following:  Downtown revitalization through improvements to a highly visible building in the core downtown area and part of Block 52.  Improving a property that functions as a community attraction through the various unique social events that it hosts. I. Budget Impact: The budgetary impact related to consideration of the Façade Loan is the Façade sub-fund of the EDA General Fund itself. The Façade Loan sub-fund currently has $132,490.07 available, with one additional downtown business in the early stages of discussion for a pre-application for the façade program. Legal fees for the preparation of the resolution and the loan documents are estimated to cost $1,450 +/-. II. Staff Workload Impact: Staff involved in review of the façade proposal include the EDA attorney, Community & Economic Development Coordinator, Community Development Director, Building Official, and Economic Development Manager. No additional staff are needed to complete the work tasks related to this proposal. III. Comprehensive Plan Impact: The Monticello 2040 Vision + Plan identifies the Downtown as a “development focus” area with the intent of promoting investment and redevelopment of key properties and parcels in the City’s core area. The Downtown Small Area Plan includes a goal of “shifting the Center of Downtown to Broadway and Walnut Street”. The subject parcel is a highly visible building in the core downtown area. This façade project is in further support of that goal. This block is also a critical connection between the continued public investment in a renewed West Bridge Park and Broadway Street businesses. This street received additional public improvements including, but not limited to, overhead string lights, EDA Agenda: 05/14/2025 decorative trellis, new sidewalk and public art. By using its available tools such as the Façade Loan Program to assist in property investment, the EDA is helping to facilitate the effort to realize the Comprehensive Plan goal “A vibrant and thriving Downtown that contributes to the City’s economic development and housing objectives” (Chapter 5, 2040 Plan). STAFF RECOMMENDATION: Staff recommend EDA approval of Facade Improvement Forgivable Loan funding to the Nordic Brewing Co. LLC DBA Nordic Tap House in the amount of $100,000. Staff defer to the EDA regarding the additional $11,000 in Facade Improvement Forgivable Loan funding to Nordic Brewing Co., LLC DBA Nordic Tap House. The building has four very visible sides in a key redevelopment block in the core downtown area. The impact from completed facade improvements at the Nordic building will be visible and immediate. SUPPORTING DATA: A. EDA Resolution 2025-02 B. Loan Agreement C. Promissory Note D. Façade Loan Application E. Selected Contractor Quote (Red Letter) F. Selected Contractor Quote (Fast Signs) G. Program Policy H. Existing Conditions Photos I. Wright County Beacon Report J. Aerial Photo K. Renderings 1 4916-8621-5226.2 EDA RESOLUTION NO. 2025-_______ RESOLUTION APPROVING A LOAN AGREEMENT BETWEEN THE CITY OF MONTICELLO ECONOMIC DEVELOPMENT AUTHORITY AND THE NORDIC BREWING CO., LLC BE IT RESOLVED BY the Board of Commissioners (“Board”) of the City of Monticello Economic Development Authority (the “Authority”) as follows: Section 1. Recitals. 1.01. The Authority recognizes the need to encourage investment in commercial and retail buildings in the downtown area of the City of Monticello, Minnesota (the “City”) in order to maintain the economic viability of the City and its Downtown/Central Community District and as such, has established a program to provide forgivable loans to eligible properties in the City’s downtown to improve the façades of existing commercial and retail buildings (the “Façade Program”). On November 9, 2022 and January 10, 2024, the Authority adopted revised policies for the Façade Program (the “Policies”). 1.02. The Authority and The Nordic Brewing Co., LLC, a Minnesota limited liability company dba Nordic Tap House (the “Borrower”) and Linda Yonak (the “Owner”), desire to enter into a loan agreement (the “Loan Agreement”) for a Façade Program forgivable loan in the amount of $111,000 (the “Loan”) to be used to pay a portion of the costs of exterior improvements to the building located on that certain real property at 106 Walnut Street in the City (the “Property”). The Borrower is acquiring the Property through a Contract for Deed with Linda Yonak and expects to acquire fee title for the Property in 2026. 1.03. The Policies require that the maximum loan amount be no greater than $50,000 (the “Maximum Amount Requirement”). 1.04. The Authority is a grantor as defined in Minnesota Statutes, Sections 116J.993 to 116J.995, as amended (the “Business Subsidy Act”), is authorized to grant financial assistance (“Business Subsidy”) for private development and has previously adopted criteria for awarding Business Subsidies that complies with the Business Subsidy Act. 1.05. On the date hereof, the Authority held a duly noticed public hearing regarding the provision of a Business Subsidy to the Borrower and a proposed business subsidy agreement (the “Business Subsidy Agreement”) and determined that the creation and/or retention of jobs is not a goal of this Business Subsidy and instead the goal of the business subsidy is to help encourage investment in commercial and retail buildings in the City’s business district and prevent blight and blighting factors therein. Therefore, notwithstanding the requirements of Section 116J.994, Subd. 2 of the Business Subsidy Act, the Authority determines that the terms of the Loan may deviate from the Authority’s written business subsidy criteria, and hereby sets the job and wage goals of the Loan at zero. 1.06. The Authority finds that the approval of the Loan is in the best interests of the City and will help maintain the economic vitality of the City. Section 2. Loan Agreement Approved. 2.01. The Authority hereby approves the Loan and the waiver of the Maximum Amount Requirement and approves the subsequent acquisition of fee title to the Property through a Contract for Deed. The Authority hereby approves the Loan Agreement in substantially the form presented to the Board, 4916-8621-5226.2 including the Escrow Agreement therein, together with any related documents necessary in connection therewith, including without limitation the Promissory Note, the Draw Request, and all documents, exhibits, certifications, or consents referenced in or attached to the Loan Agreement (the “Loan Documents”). 2.02. The Board hereby authorizes the President and Executive Director, in their discretion and at such time, if any, as they may deem appropriate, to execute the Loan Documents on behalf of the Authority, and to carry out, on behalf of the Authority, the Authority’s obligations thereunder when all conditions precedent thereto have been satisfied. The Loan Documents shall be in substantially the form on file with the Authority and the approval hereby given to the Loan Documents includes approval of such additional details therein as may be necessary and appropriate and such modifications thereof, deletions therefrom and additions thereto as may be necessary and appropriate and approved by legal counsel to the Authority and by the officers authorized herein to execute said documents prior to their execution; and said officers are hereby authorized to approve said changes on behalf of the Authority. The execution of any instrument by the appropriate officers of the Authority herein authorized shall be conclusive evidence of the approval of such document in accordance with the terms hereof. This resolution shall not constitute an offer and the Loan Documents shall not be effective until the date of execution thereof as provided herein. 2.03. In the event of absence or disability of the officers, any of the documents authorized by this resolution to be executed may be executed without further act or authorization of the Board by any duly designated acting official, or by such other officer or officers of the Board as, in the opinion of the City Attorney, may act in their behalf. Upon execution and delivery of the Loan Documents, the officers and employees of the Board are hereby authorized and directed to take or cause to be taken such actions as may be necessary on behalf of the Board to implement the Loan Documents. Approved this 14th of May, 2025, by the Board of Commissioners of the City of Monticello Economic Development Authority. ___________________________________ President ATTEST: ___________________________________ Executive Director 4934-4395-4746.4 LOAN AGREEMENT (Facade Improvement Forgivable Loan Program) THIS LOAN AGREEMENT (this “Agreement”) is made effective as of [________], 2025, by and between THE NORDIC BREWING CO., LLC, a Minnesota limited liability company dba Nordic Tap House (the “Borrower”) and LINDA YONAK (the “Owner”), and the CITY OF MONTICELLO ECONOMIC DEVELOPMENT AUTHORITY, a public body corporate and politic and a political subdivision under the laws of the State of Minnesota (the “Lender”). RECITALS A. The Lender recognizes the need to encourage investment in commercial and retail buildings in the downtown area of the City of Monticello, Minnesota (the “City”) in order to maintain the economic viability of the City and its Downtown/Central Community District and as such, has established a program to provide forgivable loans in amounts up to $50,000 to eligible properties in the City’s downtown to improve the façades of existing commercial and retail buildings (the “Façade Program”). On November 9, 2022 and January 10, 2024, the Lender adopted revised policies for the Façade Program (the “Policies”). The Policies require the maximum loan amount be no greater than $50,000 (the “Maximum Amount Requirement”). B. The Borrower has entered into a Contract for Deed (the “Contract for Deed”) with the Owner to acquire the Property located at 106 Walnut Street in the City as legally described in EXHIBIT A attached hereto (the “Loan Property”), applied for and was awarded by the Lender on May 14, 2025, a forgivable loan from the Façade Program in the principal amount of $111,000 (the “Loan”) in order to undertake façade improvements to the building located on the Loan Property (collectively the “Project”). By resolution on May 14, 2025, the Board of Commissioners of the Lender waived the Maximum Amount Requirement and approved the Loan. C. The Loan constitutes a business subsidy within the meaning of Minnesota Statutes, Sections 116J.993 to 116J.995, as amended (the “Business Subsidy Act”), and the Lender has adopted criteria for awarding business subsidies that comply with the Business Subsidy Act after a public hearing for which notice was published in accordance with the Business Subsidy Act. D. The Lender has held a duly noticed public hearing on the business subsidy provided as represented by the Loan and this Agreement constitutes a subsidy agreement under the Business Subsidy Act. E. The Lender makes the Loan to the Borrower and the Owner subject to all of the terms and conditions of this Agreement. F. Contemporaneously with the execution hereof, the Borrower and the Owner is delivering to the Lender a Promissory Note (the “Note”) effective as of the date herewith made by the Borrower and the Owner, jointly and severally, and payable to the order of the Lender, in the original principal amount of $111,000. NOW, THEREFORE, in consideration of the mutual covenants hereinafter contained, it is hereby agreed as follows: 1. Amount and Purpose of Loan. The Borrower and the Owner agree to take and the Lender agrees to make the Loan in the principal amount of One Hundred Eleven Thousand and No/100 Dollars ($111,000) to be advanced in a single disbursement as hereinafter provided. The Loan will be evidenced 4934-4395-4746.4 by the Note. The Loan proceeds (the “Proceeds”) will be used only towards the cost of the Project. 2. The Project. For the purposes of this Agreement, the term “Loan Property” means the real estate legally described in EXHIBIT A attached hereto together with all improvements now located or hereafter placed thereon. The Borrower agrees to undertake the improvements to the façade of the building on the Loan Property in accordance with and subject to the Policies. The Borrower will complete the project no later than 180 days from the date hereof (the “Completion Date”). Failure to complete the Project on or before the Completion Date shall be a default hereunder. 3. Documents to be Delivered. The Borrower covenants and agrees to immediately cause the compliance with the following conditions: (a) Note. Deliver the Note to the Lender. (b) Architectural Rendering. Deliver to the Lender an architectural rendering (the “Architectural Rendering”) of the final selected improvements. The Lender must provide final approval to the Architectural Rendering prior to the Borrower beginning work on the Project. (c) Project Cost and Source of Funds Certificate. Deliver to the Lender a sworn certificate detailing costs and sources of funds to be utilized for the Project (“Project Cost Certificate”), in a form acceptable to the Lender, verified on oath by an authorized representative of the Borrower showing an itemized breakdown of: (i) the source and amount of all Project funds; and (ii) of the total cost of the Project. Not less than 5% of the Project funds must come from the Borrower’s own funds. The Borrower shall deliver to the Lender lien waivers, receipts for payment and other evidence of payment acceptable to the Lender with respect to any such portion of costs and charges incurred through the date of the Project Cost Certificate. (d) Insurance. Deliver to the Lender a certificate or policy for all insurance required, under the terms hereof to be maintained by the Borrower. (e) Compliance with Laws, Etc. Deliver to the Lender such evidence as the Lender may require as to the compliance of the Loan Property and the Project with: (i) all applicable laws, codes, rules, regulations and ordinances, including, without limitation, those relative to environmental protection, protection of wetlands, building and zoning matters and the Americans with Disabilities Act; and (ii) the requirements of any restrictive covenants, conditions and restrictions, conditional use permits or planned unit developments applicable to the Loan Property. The Lender may waive any of the above requirements in its sole discretion. 4. Disbursement of Loan. (a) All Proceeds shall be paid to Borrower in accordance with the terms and conditions of this Agreement. Notwithstanding anything to the contrary herein, if the cost of the Project exceeds the amount to be reimbursed under this Agreement, such excess shall be the sole responsibility of the Borrower. (b) On ______________, 2025 (the “Closing Date”), the Proceeds shall be deposited into an escrow account with National Bank of Commerce, located at 1421 E. 7th St., Monticello, as escrow agent (the “Escrow Agent”) selected by the Lender. The disbursement of the Proceeds will be made subject to the conditions precedent that prior to or as of each date of disbursement: 4934-4395-4746.4 (i) The Lender has received from Borrower an executed copy of this Agreement and of an escrow agreement in substantially the form attached as Exhibit B (the “Escrow Agreement”); (ii) The Lender and Escrow Agent have received from the Borrower’s authorized representative one or more draw requests in substantially the form attached to the Escrow Agreement (each a “Draw Request”), certifying with respect to each requested disbursement: that each item for which the disbursement is proposed is included in the Project, accompanied by paid or payable invoices or other comparable evidence that the cost has been incurred and paid or is payable by Borrower; (iii) Borrower has provided evidence satisfactory to Lender that Borrower has established an account for the exclusive purpose of recording the receipt and expenditure of the Proceeds; (iv) Borrower is in compliance with the terms of the Policies and this Agreement; (v) Prior to the final disbursement of the Proceeds, the Borrower shall: (1) notify the Lender when construction of the Project has been substantially completed. The Lender or their assignee will, within a reasonable time after such notification, inspect the Loan Property in order to determine whether the conditions set forth in Section 2 have been satisfied. If the Lender determines that the conditions set forth in Section 2 have not been satisfied, the Lender will provide a written statement indicating any deficiencies to be remedied by the Borrower and the Borrower shall remedy such deficiencies diligently and with reasonable dispatch to completion. If the Lender determines that the conditions set forth in Section 2 have been satisfied, the Lender will provide a written statement of completion (the “Completion Statement”); and (2) provide the Lender with: (a) lien waivers from all contractors and sub-contractors for all work and/or materials in connection with the Project; (b) a final Project Cost Certificate; (c) evidence acceptable to the Lender that the Borrower has expended its own funds on the Project in an amount at least equal to 5% of the total cost of the Project; and (d) final invoices from any and all contractors who worked on the Project. 5. Façade Program Requirements and Covenants. (a) Façade Program. The Loan is made pursuant to the Façade Program which provides loans for eligible façade improvements. The loans are structured as 3-year no-interest forgivable loans, whereby 50% of the total loan amount is forgiven after the first year and 25% of the total loan amount is forgiven after the second and third year. From and after the Closing Date through and until the Conversion Date (as defined below), the Borrower and the Owner shall not be required to make any payments of principal or interest. (b) Policies. The Loan shall be forgiven as set forth below if the Borrower and the Owner meet all of the following requirements: (i) Timely Completion of Project. All work on the Project must be completed 4934-4395-4746.4 by the Completion Date in accordance with and subject to the policies of the Façade Program. (ii) Architectural Rendering. The Project must be completed in substantial conformity with the Architectural Rendering as approved by the Lender. (iii) Transfer. Through [_______], 2028 (the “Maturity Date”), the Borrower and the Owner shall not sell, transfer, lease, or convey the Loan Property or any part of it, or any interest therein, or encumber the Loan Property or any part of it, in any manner, without written consent of the Lender, which consent may be granted or withheld in the discretion of the Lender. This requirement shall apply to each and every sale, transfer, lease, or conveyance, whether voluntary or involuntary and whether or not the Lender has consented to any such prior sale, transfer, lease, or conveyance. Notwithstanding the foregoing, the Owner may transfer fee title to the Property to the Borrower pursuant to the Contract for Deed. (iv) No Defaults. As of each Determination Date (as defined below), there are no defaults under this Agreement or any other agreement between the Lender, the Owner and the Borrower which is beyond any notice and cure period. (c) Compliance Determination. On [_____] 1, 2026 and on each [______] 1 thereafter through and including the Maturity Date (each a “Determination Date”), the Lender will determine, in its sole and absolute discretion, whether the Borrower and the Owner have fully and timely complied with the requirements of this Section 5 as of such date. The Borrower and the Owner will promptly provide all such documentation as the Lender reasonably requests in the Lender’s effort to determine whether the Borrower and the Owner timely complied with the requirements of this Section 5. If the Lender determines, in its sole and absolute discretion, that the Borrower and the Owner fully and timely complied with the requirements of this Section 5 as of such date, as strictly interpreted, the Lender will forgive a portion of the principal amount of the Loan as of each such Determination Date and the principal balance of the Loan and the Note shall be deemed reduced and outstanding in the following amounts as of each Determination Date: Determination Date: Deemed Outstanding Principal Balance [_______] 1, 2026 $55,500 [_______] 1, 2027 $27,750 [_______] 1, 2028 $0 (d) Conversion. If the Lender determines at any time that the Borrower and the Owner have not or cannot fully or timely comply with the requirements of this Section 5, then the Loan shall no longer be forgivable, and the Borrower and the Owner shall repay the outstanding balance of the Loan not later than 30 days after the Lender sends written notice thereof (the “Conversion Date”) in accordance with the loan payoff as of such Conversion Date set forth below: Conversion Date: Loan Payoff Amount [_______] 1, 2025- [_______], 2026 $111,000 [_______] 1, 2026- [_______], 2027 $55,500 [_______] 1, 2027- [_______], 2028 $27,750 The terms and conditions of this Agreement and any other related loan document and the 4934-4395-4746.4 Borrower’s and the Owner’s obligations thereunder shall continue until the Loan is repaid in full. If the Borrower transfers the property in default of Section 5(b)(iii) of this Agreement, the Loan must be repaid by Borrower to Lender in full. If the Owner transfers the property in default of Section 5(b)(iii) of this Agreement, the Loan must be repaid by Owner to Lender in full. The Owner shall only be obligated to repay the Loan if she transfers the property in violation of Section 5(b)(iii) hereof. (e) Final Maturity. Within a reasonable time after full and final payment or forgiveness of the Loan, the Lender will return the Note to the Borrower and the Owner. 6. Access to Loan Property. The Lender and its respective representatives shall have at all reasonable times the right to enter and have free access to the Loan Property and the right to inspect the Loan Property. 7. Books and Records. The Borrower and the Owner agree to maintain accurate and complete books, accounts, and records in regard to the Project in a manner reasonably acceptable to the Lender. Such books, accounts, and records shall be kept and maintained by the Borrower and the Owner for a period of six (6) years following the Termination Date (as hereinafter defined). Accounting methods shall be in accordance with generally accepted accounting principles. The Lender, acting solely through its municipal or financial advisor, shall have the right to inspect, examine and copy all such books and records of the Borrower and the Owner. The Borrower and the Owner shall, at the Lender’s request, furnish such information solely to the Lender’s municipal or finance advisor, as may reasonably be demanded. 8. Time of Essence. Time is of the essence in the performance of this Agreement. 9. Assignability. The Borrower and the Owner shall not assign this Agreement without the prior written consent of the Lender, which consent may be withheld, conditioned, or delayed in the Lender’s sole discretion. The Lender may freely assign or otherwise transfer (including by participation) all or any part of its interest in the Loan or any or all of the Loan documents, at the Lender’s sole discretion. 10. Miscellaneous Covenants of Borrower. The Borrower and the Owner covenant and agree with the Lender that, without cost to the Lender, the Borrower will: (a) Performance of Conditions. Promptly keep, perform and comply with all of the terms, covenants and conditions to be kept and performed by the Borrower and the Owner as required by the City and any other governmental body having jurisdiction over the Loan Property as a condition of platting, rezoning or developing the Loan Property; keep unimpaired the rights of the Borrower and the Owner under any permit or agreement issued or made by the City or other governmental body having jurisdiction over the Loan Property and any contracts obtained or held by the Borrower in connection with the construction of the Project; and to enforce the prompt performance of all of the terms, covenants and conditions to be kept and performed by the City or other governmental body having jurisdiction over the Loan Property, respectively, under any permits or agreements issued or made by the City or such other governmental bodies, and any contractors under all contracts obtained or held by the Borrower in connection with construction of the Project. (b) Amendment, Etc. of Documents. Not amend, cancel, terminate, supplement, or waive any of the material terms, covenants, and conditions of any permit or agreement issued or made by the City or any other governmental body having jurisdiction over the Loan Property, or any other contracts obtained or held by the Borrower in connection with the construction of the 4934-4395-4746.4 Project or any contracts, documents or agreements referred to herein without the prior written approval of the Lender. The Borrower will provide the Lender with complete documentation concerning any change made to the Project. (c) Performance of Note, etc. Without limiting the foregoing, keep and perform all of the terms, covenants, conditions and requirements of the Note and this Agreement. (d) Insurance. During the term of this Agreement, the Borrower shall procure and maintain or cause to be procured and maintained at their sole expense, casualty insurance, public liability insurance and such other types of insurance as are reasonably required by the Lender from time to time, insuring the Lender and the Borrower with coverages, in amounts and with companies satisfactory to the Lender. (e) Pay Fees. Pay at closing, or within 30 days of written notice from the Lender, all loan charges including, but not limited to: (i) the Lender’s attorneys’ fees; and (ii) filing fees of any instruments required under this Agreement. (f) Default Notices. Provide the Lender with a copy of any default notice received by the Borrower and the Owner, pursuant to any documents related to any financing secured by the Loan Property or any governmental authority, promptly after receipt of the same. 11. Warranties. The Borrower and the Owner represent and warrant to the Lender the following: (a) The making and performance of this Agreement and the execution and delivery of the Note and any other instrument required hereunder are within the powers of the Borrower and the Owner and have been duly authorized by all necessary organizational action on the part of the Borrower and the Owner. This Agreement and the Note, and any other instruments required hereunder have been duly executed and delivered and are the legal, valid, and binding obligations of the Borrower and the Owner enforceable in accordance with their respective terms. (b) No litigation, tax claims or governmental proceedings are pending or threatened against the Borrower and the Owner, and no judgment or order of any court or administrative agency is outstanding against the Borrower and the Owner which would have a material adverse effect on the Borrower and the Owner. (c) The Borrower and the Owner has filed all tax returns (federal and state) required to be filed for all prior years and paid all taxes shown thereon to be due, including interest and penalties. The Borrower and the Owner will file all such returns and pay all such taxes for the current and future years. (e) All information, financial or other, which has been submitted by the Borrower and the Owner in connection with the Loan is true, accurate, and complete in all material respects. 12. Indemnification. The Borrower and the Owner, jointly and severally, shall defend, hold harmless and indemnify the Authority and its officials, commissioners, officers, agents and employees from and against all claims, liability, costs, expenses, loss or damages of any nature whatsoever, including reasonable attorneys’ fees, arising out of or in any way connected with its failure to perform its covenants and obligations under this Agreement and any of its operations or activities related thereto. The provisions of this paragraph shall survive the termination of this Agreement. This indemnification shall not be 4934-4395-4746.4 construed as a waiver on the part of either the Borrower or the Authority of any immunities or limits on liability provided by applicable Minnesota law. 13. Defaults. Each of the following shall constitute an Event of Default: (a) If the Borrower or the Owner fails to pay when due any amount due under this Agreement, the Note, or any other documents listed in Section 3. (b) Bankruptcy, reorganization, assignment, insolvency or liquidation proceedings, or other proceedings for relief under any applicable bankruptcy law or other law for relief of debtors are instituted by or against the Borrower or the Owner and, if such proceedings are instituted against the Borrower or the Owner, an order, judgment or decree, without the consent of the Borrower appointing a trustee or receiver for the Borrower or the Owner or any part of their property or approving a petition under the bankruptcy laws of the United States or any similar laws of any state or other competent jurisdiction, shall have remained in force undischarged or unstayed for a period of 30 days. (c) Any of the terms, covenants, or conditions of any permit or other agreement issued or made by the City or other governmental body having jurisdiction over the Loan Property are not complied with within the time required thereby or are terminated or modified by the City or such other governmental body and the Borrower and the Owner has not taken the necessary steps to correct or cure the same within 30 days after written notice is given by the Lender. (d) Any mechanic’s or material supplier’s lien is filed, against the Loan Property and is not released, satisfied, or discharged or bonded to the Lender’s satisfaction. (e) A transfer which violates Section 5(b)(iii) hereof occurs or the Borrower or the Owner abandons the Loan Property. (f) The Borrower fails: (i) to complete construction of the Project by the Completion date; (ii) to construct the Project in accordance with this Agreement; (iii) to observe or perform any other covenant, condition, obligation or agreement on its part to be observed or performed under this Agreement, the Note, or any other document executed by the Borrower and the Owner pursuant to this Agreement; or (iv) fails to pay any amount or perform any obligation under any other note, mortgage or other agreement now or hereafter made by the Borrower and the Owner in favor of or with the Lender or otherwise now or hereafter made by the Borrower and the Owner in connection with the Loan Property, and any such failure continues 30 days after written notice is given by the Lender. (g) Any representation or warranty by the Borrower and the Owner contained herein or in the Note, or any other instrument required hereunder is false or untrue in any material respect when made. 14. Business Subsidy Agreement. (a) Public Purpose. In order to satisfy the provisions of the Business Subsidy Act, the Borrower acknowledges and agrees that the amount of the “Business Subsidy” granted to the Borrower under this Agreement is the Loan, and that the Business Subsidy is needed to improve the façade of the Loan Property to encourage investment in commercial and retail buildings in the downtown area of the City in order to maintain the economic viability of the City and its Downtown/Central Community District. The 4934-4395-4746.4 public purpose of the Business Subsidy is to remove blight in the City’s downtown and increase the tax base of the City and the State. The goals of the Business Subsidy are to revitalize the City’s downtown through façade improvements and blight elimination and prevention and increase the tax base of the City and the State. (b) Operation of Site. The Borrower shall continue its operations at the Loan Property (the “Qualified Facility”) for at least 5 years after the Benefit Date (defined hereinafter). The Project will be a Qualified Facility as long as the Loan Property is operated by the Borrower. The parties agree that the “Benefit Date” is the date that the Lender delivers the Completion Statement. (c) Job and Wage Goals. Following a public hearing pursuant to Minnesota Statutes, Section 116J.994, subd. 4, the Lender has determined that the creation or retention of jobs is not a goal of the Business Subsidy, and accordingly, wage and job goals for the Business Subsidy are set at zero. (d) Remedies. Failure to meet the goals described in (a) and (b) hereto (the “Goals”) shall be an Event of Default. (i) if the failure relates to maintenance of the facility as a Qualified Facility in accordance with Section 13(b) hereof, 60 less the number of months of operation as a Qualified Facility (where any month in which the Qualified Facility is in operation for at least 15 days constitutes a month of operation), commencing on the Benefit Date and ending with the date the Qualified Facility ceases operation as determined by the Lender, divided by 60; and (ii) Nothing in this Section shall be construed to limit the Lender’s remedies under Section 15 hereof. In addition to the remedy described in this Section and any other remedy available to the Lender for failure to meet the Goals the Borrower agrees and understands that it may not receive a business subsidy from the Lender or any grantor (as defined in the Business Subsidy Act) for a period of 5 years from the date of the failure or until the Borrower satisfies its repayment obligation under this Section, whichever occurs first. i. Reports. To the extent required by the Minnesota Department of Employment and Economic Development, within 30 days of a request from the Lender, the Borrower agrees to (i) report its progress on achieving the Goals to the Lender until the later of the date the Goals are met or two years from the Benefit Date, (ii) include in the report the information required in Section 116J.994, Subdivision 7 of the Business Subsidy Act on forms developed by the Minnesota Department of Employment and Economic Development, and (iii) send completed reports to the Lender; provided, however, that such reporting obligations will not affect the terms of this Agreement which set the job and wage goals at zero or effect any obligation for the Borrower to meet any greater Goals than those contemplated herein. If the Borrower fails to timely file any report required under this Section, the Lender will mail the Borrower a warning within one week after the required filing date. If, after 14 days of the postmarked date of the warning, the Borrower fails to provide a report, the Borrower must pay to the Lender a penalty of $100 for each subsequent day until the report is filed. The maximum aggregate penalty payable under this Section is $1,000. ii. Other assistance. There are no other state or local government agencies providing financial assistance for the Project other than the Lender. iii. Parent Corporation. The Borrower does not have a parent corporation. 4934-4395-4746.4 15. Remedies. Upon the occurrence of an Event of Default, the Lender, at its option, shall, in addition to any other remedies which it might be entitled to by law, have the right to: (a) Perform such other acts or deeds which reasonably may be necessary to cure any default existing under this Agreement, and to this end, it is hereby agreed as follows: (i) All sums expended by the Lender in effectuating its rights under paragraphs (ii) and (iii) of this paragraph shall be deemed to have been advanced under this Agreement and to be secured by any security document required under this Agreement as security for the Loan. (ii) The Lender, at its option, shall have the right to enter into possession of the Loan Property and perform any and all work and labor necessary to complete the Project substantially as required under this Agreement and to do all things necessary or incidental thereto. (iii) The powers herein granted the Lender shall be deemed to be powers coupled with an interest and the same are irrevocable. (b) cancel this Agreement; (c) bring appropriate action to enforce such performance and the correction of such Event of Default; (d) if a default occurs under Section 5(b)(iii) hereof, declare the entire unpaid principal of the Note immediately due and payable without notice; and (e) pursue whatever action, including legal, equitable or administrative action, which may appear necessary or desirable to collect all costs (including reasonable attorneys’ fees) and any amounts due under this Agreement or to enforce the performance and observance of any obligation, agreement, or covenant hereof. 16. Default under Note. The failure by the Borrower and the Owner to keep or perform any of the terms, covenants, and conditions to be kept or performed by it under this Agreement shall constitute a default under the Note. 17. Notices. Any notices given hereunder shall be in writing and shall be deemed to have been given when delivered personally or three (3) days after deposited in the United States mail, registered, postage prepaid, addressed as follows: If to the Borrower: The Nordic Brewing Co., LLC 530 Cedar Street Monticello, MN 55362 Attn: [_______] If to the Owner: Linda Yonak [Address] 4934-4395-4746.4 If to the Lender: City of Monticello Economic Development Lender 505 Walnut Street Monticello, MN 55362 Attn: Executive Director or addressed to any such party at such other address as such party shall hereafter furnish by notice to the other party. Any notice delivered personally to the Borrower and the Owner shall be delivered to an officer of the Borrower and the Owner, and any notice delivered personally to the Lender shall be delivered to an officer of the Lender at the address for the Lender for the mailing of notices. Either party may change its address for the giving of notices by giving the other party at least 10 days’ notice in the manner provided above. 18. Termination. This Agreement shall terminate on the later of the Maturity Date or the date that the Loan has been paid in full (the “Termination Date”). Notwithstanding anything herein to the contrary, the indemnification provisions provided in Section 12 hereof shall not terminate on the Termination Date. 19. Headings. The headings used in this Agreement are for convenience only and do not define, limit, or construe the contents of this Agreement. 20. Bindings on Successors and Assigns. Subject to the limitations on transfer contained in this Agreement, this Agreement shall be binding upon and inure to the benefit of the successors and assigns of the parties hereto. 21. Governing Law. This Agreement shall be governed by and construed in accordance with the laws of Minnesota, without giving effect to any choice or conflict of law provision or rule. 22. Counterparts. This Agreement may be executed in 2 or more counterparts, each of which shall be an original and all of which shall constitute the same agreement. 23. Entire Agreement. This Agreement, the Note and the other documents executed by the Borrower, the Owner and/or the Lender pursuant to this Agreement contain the entire agreement between the parties with respect to the subject matter hereof and supersede all prior understandings and agreements, both oral and written. This Agreement may be amended only in a writing signed by the parties hereto. 24. Fees and Expenses. the Borrower agrees to pay to the Lender immediately upon demand all costs and expenses, including, without limitation, all attorneys’ fees, incurred by the Lender in connection with the enforcement of the Lender’s rights and/or the collection of any amounts which become due to the Lender under this Agreement, the Note or the other documents executed in connection herewith; and the prosecution or defense of any action in any way related to this Agreement, the Note or the other documents executed in connection herewith. 25. Electronic Signatures; Execution in Counterparts. The electronic signature of the parties to this Agreement shall be as valid as an original signature of such party and shall be effective to bind the parties hereto. For purposes hereof, (i) “electronic signature” means a manually signed original signature that is then transmitted by electronic means; and (ii) “transmitted by electronic means” means sent in the form of a facsimile or sent via the internet as a portable document format (“pdf”) or other replicating image attached to 4934-4395-4746.4 an electronic mail or internet message. This Agreement may be simultaneously executed in several counterparts, each of which shall be an original and all of which shall constitute but one and the same instrument. 26. Data Practices. All data collected, created, received, maintained or disseminated for any purpose in the course of Borrower’s performance of this Agreement is governed by the Minnesota Government Data Practices Act, Minn. Stat. Ch. 13, and any other applicable state statutes, any state rules adopted to implement the Act and statutes, as well as federal statutes and regulations on data privacy. 27. Audits. The accounts and records of the Borrower and the Owner described in paragraph (l) above shall be audited in the same manner as all other accounts and records of the Borrower and the Owner and may, for a period of six (6) years following the Termination Date, be inspected on the Borrower and the Owner’s premises by the Authority or individuals or organizations designated by the Authority, upon reasonable notice thereof to the Borrower and the Owner. The books, records, documents and accounting procedures relevant to this Agreement are subject to examination by the State Auditor in accordance with Minnesota law. S-1 4934-4395-4746.4 IN TESTIMONY WHEREOF, the Borrower and the Owner causes this Agreement to be effective as of the day and year first above written. THE NORDIC BREWING CO., LLC By: Name:__________________________________ Its: ____________________________________ Consented to by: LINDA YONAK By: _____________________________________ Name: Linda Yonak S-2 4934-4395-4746.4 IN TESTIMONY WHEREOF, the Lender causes this Agreement to be effective as of the day and year first above written. CITY OF MONTICELLO ECONOMIC DEVELOPMENT AUTHORITY By: Name: Steve Johnson Its: President By: Name: Jim Thares Its: Executive Director A-1 4934-4395-4746.4 EXHIBIT A LOAN PROPERTY [legal description of Loan Property to be inserted] A-2 4934-4395-4746.4 EXHIBIT B ESCROW AGREEMENT FAÇADE IMPROVEMENT FORGIVABLE LOAN PROGRAM ESCROW AGREEMENT This Agreement is entered into this ___ day of _____, 20__, by and between The Nordic Brewing Co., LLC, a Minnesota limited liability company (the “Borrower”), National Bank of Commerce, a federal savings bank (the “Escrow Agent”), and the City of Monticello Economic Development Authority, a public body corporate and politic under the laws of Minnesota (the “Authority”). Purpose The purpose of the escrow established pursuant to this Agreement is to provide assurance to the Authority that Borrower will complete the Project described in the Loan Agreement between the Authority, the Owner, and the Borrower dated [_______], 2025 (the “Loan Agreement”), which is incorporated herein by reference. All capitalized terms which are not otherwise defined herein shall have the meanings set forth in the Loan Agreement. Escrow The Escrow Agent hereby acknowledges receipt from the Authority of Proceeds in the amount of $111,000.00 to be disbursed in connection with the construction by Borrower of the Project. Proceeds will be disbursed to the Borrower in one or more payments as evidenced by the provisions of this section. Before disbursement of any Proceeds deposited hereunder, Borrower must submit to the Authority and Escrow Agent a draw request in substantially the form attached hereto as Exhibit A (the “Draw Request”) containing evidence showing that costs for the Project have been paid or incurred by the Borrower in at least the amount requested, provided that (i) no Proceeds will be disbursed until Borrower provides evidence that Borrower has paid Borrower’s required share of total costs of the Project. Prior to the final disbursement of Proceeds, the Borrower shall: (i) notify the Lender when construction of the Project has been substantially completed. The Lender or their assignee will, within a reasonable time after such notification, inspect the Loan Property in order to determine whether the conditions set forth in Section 2 have been satisfied. If the Lender determines that the conditions set forth in Section 2 have not been satisfied, the Lender will provide a written statement indicating any deficiencies to be remedied by the Borrower and the Borrower shall remedy such deficiencies diligently and with reasonable dispatch to completion. If the Lender determines that the conditions set forth in Section 2 have been satisfied, the Lender will provide a written statement of completion (the “Completion Statement”); and (ii) provide the Lender with: (a) lien waivers from all contractors and sub-contractors for all work and/or materials in connection with the Project; (b) a final Project Cost Certificate; (c) evidence acceptable to the Lender that the Borrower has expended its own funds on the Project in an amount at least equal to 5% of the total cost of the Project; and (d) final invoices from any and all contractors who worked on the Project. The Authority may, if not satisfied with any evidence provided, request such further documentation or clarification as the Authority may reasonably require. The Authority will authorize disbursement by the Escrow Agent of the Proceeds upon receipt and approval A-3 4934-4395-4746.4 of the Borrower’s Draw Request evidencing costs of the Project exceeding Borrower’s required contribution by at least the amount of the requested disbursement. Final disbursement of Proceeds must be made no later than six months after the date hereof. Indemnity Borrower agrees to indemnify and hold harmless the Authority from and against any claim, damage, liability, loss or expense, including reasonable attorney’s fees, made by any party in connection with the performance of obligations under this Agreement. Title and Escrow Charges Any escrow fees will be paid by Authority. Termination This Agreement will terminate upon the earlier to occur of one of the following: i) mutual written agreement of the parties; or ii) disbursement of all Proceeds to Borrower (the “Termination Date”). Any balance of Proceeds remaining in escrow as of the Termination Date will be returned to the Authority. A-4 4934-4395-4746.4 THE NORDIC BREWING CO.,LLC By: ___________________________ Its: ___________________________ Date: __________________________ CITY OF MONTICELLO ECONOMIC DEVELOPMENT AUTHORITY ___________________________________________ Date: ____________________ By: Its President ___________________________________________ Date: ____________________ By: Its Executive Director National Bank of Commerce By: ________________________________________ Date: ____________________ Its _____________________________________ A-5 4934-4395-4746.4 EXHIBIT A TO ESCROW AGREEMENT DRAW REQUEST – DOWNTOWN FAÇADE IMPROVEMENT PROGRAM TO: City of Monticello Economic Development Authority 505 Walnut Street, Suite 1 Monticello, MN 55362 Attn: Executive Director DISBURSEMENT DIRECTION The undersigned Authorized Representative of The Nordic Brewing Co., LLC, a Minnesota limited liability company (the “Borrower”), hereby authorizes and requests you to disburse from the Proceeds, in accordance with the terms of the Loan Agreement between the City of Monticello Economic Development Authority (the “Lender”) and the Borrower, dated as of [_______], 2025 (the “Agreement”), and the Escrow Agreement, the following amount to the following person and for the following proper costs of the Project: 1. Amount: 2. Payee: 3. Purpose: all as defined and provided in the Agreement. The undersigned further certifies to the Lender that (a) none of the items for which the payment is proposed to be made has formed the basis for any payment previously made under Section 4 of the Agreement (or before the date of the Agreement); (b) each item for which the payment is proposed is eligible for funding from the Proceeds; and (c) the Borrower has paid, at the Borrower’s sole expense, $______________ in costs of the Project, representing at least the Borrower’s 5% required share of such costs. All capitalized terms which are not otherwise defined herein shall have the meanings set forth in the Loan Agreement. Dated: ____________________ ______________________________________ Borrower’s Authorized Representative 4936-0150-7386.2 PROMISSORY NOTE (Facade Improvement Forgivable Loan Program) _________, 2025 Amount: $111,000 Interest: 0.00% Maturity Date: [________] 1, 2028 FOR VALUE RECEIVED, the undersigned, THE NORDIC BREWING CO., LLC, a Minnesota limited liability company (“Borrower”) and LINDA YONAK (the “Owner”), jointly and severally promise to pay to the order of CITY OF MONTICELLO ECONOMIC DEVELOPMENT AUTHORITY, a public body corporate and politic and a political subdivision under the laws of the State of Minnesota (“Lender”), at 505 Walnut Street, Monticello, Minnesota 55362, or such other place as Lender or any other holder of this Note may designate in writing, on or before the Maturity Date (as defined above), the principal sum of One Hundred Eleven Thousand and No/100 Dollars ($111,000), without interest. This Note is made pursuant to a Loan Agreement, between Borrower and Lender, of even date herewith (“Loan Agreement”). All capitalized terms which are not otherwise defined herein shall have the meanings set forth in the Loan Agreement. This Note is made pursuant to the Program and the Policies. As of each Determination Date (as defined in the Loan Agreement), Lender will forgive a portion of the principal balance of the Note, subject to and in accordance with the terms of the Loan Agreement. If Lender determines at any time that Borrower is not in compliance with the terms of the program, subject to and in accordance with the terms of the Loan Agreement, Borrower will be required to promptly pay the outstanding principal hereunder on the Conversion Date (as defined in the Loan Agreement). If the Lender, or any other holder of this note, has not received the full amount of any outstanding principal provided for in this note, by the end of 7 calendar days after the date it is due, Borrower shall pay a late charge fee to the Lender, or any other holder of this note. The amount of the late charge fee shall be 8.00% of the overdue outstanding principal. The Borrower and the Owner shall pay this late charge fee on demand, however, collection of the late charge fee shall not be deemed a waiver of the Lender’s right to declare an Event of Default and exercise its rights and remedies as provided for in the Loan Agreement and the Security Documents. Each payment made under this note shall be applied as follows: (i) first, to be applied against and pay unpaid late charges and any other charges, including attorneys' fees and protective advances; and then (ii) all remaining amounts, if any, shall be applied against and reduce the then outstanding principal balance of this Note. If an Event of Default shall occur hereunder or under the Loan Agreement and any cure period provided for in the Loan Agreement has expired, the entire principal amount outstanding and any other charges due hereon shall at once become due and payable at the option of the Lender or the holder hereof. Any failure of the Lender to exercise its right to accelerate this note at any time shall not constitute a waiver of the right to exercise the same right to accelerate the note at any subsequent time. The Borrower and the Owner may prepay the principal under this note at any time and from time to time, in whole or in part, without premium or penalty. 2 4936-0150-7386.2 All sums payable to the Lender under this Note shall be paid in immediately available funds. The Borrower and the Owner promise to pay all costs in connection with the enforcement of this Note, including but not limited to, those costs, expenses, and attorneys’ fees of Lender whether or not suit is filed with respect thereto and whether or not such cost or expense is paid or incurred or to be paid or incurred prior to or after the entry of judgment or for the pursuance of, or defense of, any litigation, appellate, bankruptcy, or insolvency proceeding. Presentment, notice of dishonor and protest are hereby waived by all makers, sureties, guarantors, and endorsers hereof. This Note shall be binding upon Borrower, its successors, and assigns. The remedies of Lender, as provided herein and in the Loan Agreement, shall be cumulative and concurrent and may be pursued singly, successively, or together, at the sole discretion of Lender, and may be exercised as often as occasion therefor shall occur; and the failure to exercise any such right or remedy shall in no event be construed as a waiver or release thereof. Time is of the essence hereof. This Note shall be governed by and be construed under the laws of the State of Minnesota, without regard to principles of conflicts of law. Notwithstanding the forgoing, the Owner shall only be responsible for payments under this Note in the event it fails to comply with Section 5(b)(iii) of the Loan Agreement. [Signature Page Follows] S-1 4936-0150-7386.2 IN WITNESS WHEREOF, the undersigned has caused this Note to be effective as of the day and year first above written. THE NORDIC BREWING CO., LLC By: Name: _________________________________ Its: LINDA YONAK By: _____________________________________ Name: Linda Yonak Red Letter Renovation 5100 Martin Drive Monticello, MN 55362 US +17635163340 Office@redletterrenovation.com www.redletterrenovation.com Estimate ADDRESS Zach Barthel Nordic Brew Pub 212 Fourth Street Monticello, Minnesota 55362 United States ESTIMATE #DATE 5071 03/13/2025 QTY AMOUNT Stucco Repair Labor and materials to perform stucco repair in areas with favorable site conditions, with a 10 square foot minimum per repair area. Scope includes: Labor: - Remove damaged stucco and any loose debris from the affected area - Wire brush the exposed patch area to ensure proper adhesion of new materials - Inspect, prepare, and repair existing lath, securing or replacing as needed to create a stable base - Mix and apply a two-coat stucco system, including base coat and finish coat, to match surrounding texture as closely as possible - Trowel finish the repair for a uniform appearance Materials: - Stucco base and finish coats - Fasteners, bonding agents, and patching compounds - Lath repair materials (if required) - Cleanup supplies and protection materials for surrounding surfaces All work will be completed to a professional standard, blending the repair into the existing finish as closely as possible and ensuring long-term durability. 1 30,566.80 Patch/ Repair Framing Labor and materials to remove two existing garage doors and construct two new framed exterior walls in their place, tying seamlessly into the existing structure. Scope includes: Labor: - Careful removal and disposal of two existing garage doors, including tracks, hardware, and framing as needed - Framing two new exterior walls, including layout, measuring, cutting, and assembly of framing members - Securing new walls to the existing structure to ensure a stable and weather-tight connection - Installation of exterior sheathing and water-resistant barrier - Application of new stucco finish, including: - Preparing sheathing and applying lath - Mixing and applying a two-coat stucco system - Feathering the finish into existing stucco surfaces for a consistent appearance - Final cleanup of work area 1 14,979.36 QTY AMOUNT Materials: - Framing lumber (studs, headers, plates) - Fasteners, nails, and structural connectors - Exterior sheathing and moisture barrier - Lath, stucco base coat, and finish coat materials - Joint reinforcement and bonding agents (as needed) - Jobsite protection and cleanup supplies All work will be completed to meet current building codes and match existing exterior finishes as closely as possible for a clean and professional result. Exterior Painting Labor and materials to paint the full exterior of the home, including trim and shutters, performed under favorable site conditions. Work will be completed to professional standards for both appearance and durability. Labor: Preparation work allocated at up to 2 hours per 350 sq. ft., including: - Scraping and removing loose or peeling paint - Spot priming bare or repaired areas - Caulking gaps and seams at trim edges, joints, and around windows/doors - Application of two (2) coats of high-quality exterior paint, applied via brush and/or roller for full coverage and a consistent finish - Painting of all trim and shutters as part of the overall exterior finish - Setup and protection of all surrounding surfaces, landscaping, and structures - Cleanup of jobsite and removal of all painting-related debris and masking materials Materials: - High-quality exterior-grade paint (two coats) in client-selected color(s) - Primer, caulk, patching compounds, and surface preparation products - Drop cloths, masking materials, and protective coverings - Ladders, scaffolding, and other necessary painting equipment - Cleanup supplies and tools All work will be performed with attention to detail, resulting in a long-lasting, attractive finish that enhances curb appeal and protects the home from the elements. 1 35,030.97 Awnings Installation Labor and materials to design, build, and install custom awnings, tailored to project specifications and architectural requirements. Work includes full fabrication, installation, and finishing. Labor: - Site measurement and layout to ensure proper sizing and placement of awnings - Fabrication of custom awning frames, including cutting, assembling, and welding or bolting of structural components (as applicable) - Installation of awning structure, securely anchored to the building using appropriate fasteners and support brackets - Fitting and securing awning cover material (if applicable), whether fabric, metal, or polycarbonate - Final alignment and inspection to ensure proper pitch, drainage, and aesthetics - Jobsite preparation and cleanup to leave work area clean and safe Materials: - Structural framing materials (e.g., powder-coated aluminum, steel, or treated wood) - Awning covering materials (e.g., UV-resistant fabric, standing seam metal, or translucent panels) - Fasteners, brackets, anchors, and hardware - Sealants, edge trims, and finishing components - Protective materials for work area and cleanup supplies 3 6,600.00 QTY AMOUNT All work will be completed to provide a durable, functional, and visually appealing awning solution that complements the structure and meets local code requirements. Aluminum Deck Railing Westbury Railing System with Drink Ledge (Special Order) Labor and materials to install a custom, special-order aluminum deck railing system using the Westbury® railing product line, including an integrated drink ledge for added functionality and style. Labor: - Site measurements and layout planning to ensure accurate fit and compliance with code requirements - Unpacking and staging of custom-ordered components, verifying all materials upon delivery - Installation of railing posts, panels, brackets, and fasteners in accordance with manufacturer specifications - Custom fitting and secure installation of the drink ledge for a seamless and professional finish - Final alignment and inspection for structural integrity, spacing, and visual consistency - Jobsite cleanup and debris removal upon completion Materials: Custom Westbury® aluminum railing system, including: - Rail panels and posts (color and style per client selection) - Post caps, base plates, and mounting hardware - Integrated drink ledge components, color-matched or complementary - Manufacturer recommended fasteners and connectors - Special order processing and delivery fees - Protective materials and supplies for transport, staging, and installation All work will be performed with precision and attention to detail, resulting in a durable, low-maintenance railing system that enhances the functionality and appearance of the deck while meeting all applicable safety standards. 156 14,820.00 Waste Management (Full Service) Red Letter Renovation will provide complete waste management and debris removal services for the duration of the project. This includes: - Supplying and placing a properly sized dumpster or Bagster based on project requirements - Daily collection and containment of construction debris to maintain a clean, safe, and organized jobsite - Facilitating removal and disposal of all waste materials in accordance with local, state, and environmental regulations - Managing and covering all transportation and dump fees, including coordination with waste disposal providers - Handling all logistics, scheduling, and vendor communications related to waste removal services This all-inclusive service ensures that waste and debris are professionally handled, with no additional disposal responsibilities or fees passed on to the client. 2 1,500.00 Project Management Provide comprehensive project management services for the renovation project, performed under favorable site conditions. This includes full oversight of planning, scheduling, coordination, and execution to ensure the project is delivered efficiently, on time, and within budget. Development of a detailed project plan, including: - Cost targets - Key decision points - Material ordering timelines - Trade partner start/finish schedules - Inspection milestones and coordination - Daily oversight of jobsite activities, with active management of all trades and project phases - Expediting progress and troubleshooting issues to maintain momentum and avoid delays 1 11,016.68 QTY AMOUNT - Tracking and approval of all milestone completions - Ongoing budget monitoring, including cost tracking, change order evaluation, and client updates - Coordination of planning, material acquisition, equipment delivery, and labor resources - Area preparation and protection, ensuring that workspaces are safe, clean, and compliant - Final jobsite cleanup and readiness for next-phase work or occupancy All services will be delivered with a focus on communication, accountability, and quality control, ensuring a smooth renovation process from start to finish. Thank you for your business! Please reach out to office@redletterrenovation.com for payment options. We accept ACH, Credit Cards, Paypal, and Checks. All line items include labor and materials. TOTAL $114,513.81 Accepted By Accepted Date Requested By:Zach Barthel Email:zach@darkhorsevapery.com Cell Phone:(763) 656-3370 Salesperson:Andy Lewis Email:andy.lewis@fastsigns.com Cell Phone:3209820472 NO.Product Summary QTY UNIT PRICE UNIT PRICE AMOUNT 1 NORDIC / TAPHOUSE -(South/West Corner) Design and Build - Illuminated Channel Letters 2 pieces - Installed - (Final Electrical Not Included) 1 $10,570.00 $10,570.00 $10,570.00 2 NORDIC TAPHOUSE -(Back Of Building EAST side) Design and Build - Illuminated Channel Letters - Installed - (Final Electrical Not Included) 1 $6,537.60 $6,537.60 $6,537.60 3 [84x84] NORDIC TAPROOM With WOLF logo - Max Metal 3mm w/ IJ Vinyl Graphics applied - Non-Illuminated - Custom Routing on Top, Square at bottom 2 $2,709.82 $2,709.82 $5,419.64 4 City Permitting Fees **Final fees determined at time of City approval**1 $330.00 $330.00 $330.00 Credit Card Surcharge:3.00% Bill To:NORDIC Brewpub 530 Cedar St Monticello, MN 55362 US Installed:NORDIC Brewpub 530 Cedar St Monticello, MN 55362 US DESCRIPTION: New Location Signage ESTIMATE E282-102488 PO Number: Payment Terms: Cash Customerwww.fastsigns.com/282 2911 Clearwater Road St. Cloud, MN 56301 (320) 252-1667 Created Date: 3/18/2025 This FASTSIGNS location is independently owned and operated. Estimates are valid for 30 calendar days from the date stated at the top of the estimate sheet. Proofing will begin after receipt of signed estimate and the required down payment is received (100% payment on orders under $1,000 and 50% payment on orders over $1,000). If you have established Net 30 terms, the deposit will not apply. To apply for Net 30 terms, please contact your sales representative to get started. Payment on your first order will still require down payment while your request for terms is being processed. Turnaround times will be stated up front by your sales representative. Turnaround times listed are only for estimating purposes and are not a guarantee of delivery or installation date for any project. Due dates are dependent on final proof approvals. If you have any questions, please contact us. Generated On: 4/29/2025 12:28 PM Page 1 of 2 Our team is looking forward to the opportunity to serve you! REFUND & CANCELLATION POLICY: If a project is canceled or postponed, setup fees in the amount of 10% of the invoice subtotal or $100 minimum invoice, whichever is greater, are non-refundable as it is applied to costs immediately incurred in initiating services. Designs rendered by FASTSIGNS are property of FASTSIGNS and are subject to copyright law. Signature:Date: Generated On: 4/29/2025 12:28 PM Page 2 of 2 City Policy and Procedure SECTION: FINANCE NO: FIN- REFERENCE: Date: Next Review Date: TITLE: FAÇADE IMPROVEMENT PROGRAM 1.0 Purpose The City of Monticello Economic Development Authority (the “EDA”) recognizes the need to encourage investment in commercial and retail buildings in the Downtown area in order to maintain the economic viability of the City and the Downtown/Central Community District. The purpose of this forgivable loan program is to support a visually and financially appealing Downtown and greater Monticello community by providing forgivable loans to improve the façades of existing Downtown commercial and retail buildings. 2.0 Policy ELIGIBLE BUSINESSES Commercial property located within the geographic area illustrated in Exhibit A of these guidelines may be eligible for a Downtown Façade Improvement Forgivable Loan (“ Loan”) as further defined herein. The area illustrated in Exhibit A of these guidelines is amended to include the buildings to remain on Block 52 following redevelopment, as well as those buildings along Walnut Street, between Broadway Street West and River Street. It is the goal of the EDA that 70% of the buildings within the eligible area complete improvements to their properties. The EDA has allocated a maximum of $200,000 for the initial Loan program. This is a pilot program, and additional areas and allocations will be considered at a future date. FORGIVABLE LOAN FUND TERMS & CONDITIONS Loan Amount & Structure Individual loans may be made in an amount ranging from $5,000-$50,000. Loan forgiveness generally takes place over a three-year period with fifty percent (50%) of the award forgiven at the end of the first year, and twenty-five percent (25%) forgiven at the end of years two and three. The EDA may extend or reduce the forgiveness period based on the dollar amount of the Loan. If the benefitting building is sold within the period of the Loan, the Loan must be repaid. The Applicant must provide at least 5% of the project cost in cash. The Applicant percentage shall be used as the project down-payment, as may be required. Eligibility Requirements Tenants and property owners should discuss the loan program to determine responsibilities and commitment for application and its components. The owner of the property must be a cosignatory to the application and Loan agreement. The property owner must carry current property insurance both at the time of application and through completion of approved Loan improvements. Property taxes on the subject site must be current for the duration of the Loan. MN190\101\941811.v1 Applicants are not eligible to receive funding if the property to be rehabilitated is in default under a property mortgage, contract for deed or comparable obligation. An applicant/property owner is ineligible to receive assistance if currently involved in bankruptcy proceedings. Applicants may apply for only one Loan per building. The EDA reserves the right to approve or reject applications on a case-by-case basis, taking into consideration factors considered appropriate by the EDA, in addition to established polices, criteria, and potential benefits. Meeting the criteria does not guarantee an application will be approved. Approval or denial of an application is at the sole discretion of the EDA. Concurrent Loans The concurrent use of different EDA loan programs by any one borrower or for any one project is permitted. Business subsidy agreements may be required. Permitted Loan Uses Exterior renovation of the façades of principal use retail or commercial buildings as further shown on Exhibit B attached hereto. An applicant may apply for façade improvements on all exterior sides of their building. The EDA may approve a Loan for improvements for all or some of the sides of the building at their discretion. An architectural rendering supplied by one of the following is required: an EDA selected architect, applicant contractor or architect, or a qualified architect accepted by the EDA. This item is required for use in determining final scope of work in consultation with the applicant and the applicant’s selected contractor for any project. The cost of the rendering shall not be included in the Loan amount. Architectural renderings will be considered for preparation after initial letter of interest by an applicant. Façade renovation may include, but is not limited to windows, doors, siding, brick, stucco, masonry, painting, steps, cornices, parapets, shutters, dormers, signage, awnings, and structural roof components and such improvements shall be guided by the architectural rendering. Interior side renovation proposals may be considered on a case-by-case basis. The applicant will work with a contractor to define final selected improvements using the architectural rendering as a guide. The architectural rendering with final selected improvements must be reviewed and approved by the EDA and will be included in final Loan documentation. The improvements must be completed in substantial conformity to the approved architectural rendering. The cost of the building permit for the approved Loan project will be included in the final Loan amount. CONSTRUCTION AND IMPROVEMENTS CODE COMPLIANCE As applicable, buildings for which public funds will be used within this program are to be brought into conformity with city ordinances and state building codes in effect for the area in which the building is located. It is the intent of the Downtown Façade Improvement Loan Program to comply with the City’s building standards for the Downtown/Central Community District (CCD). Please refer to the City’s Downtown Small Area Plan and zoning ordinance for complete details as it relates to the standards governing this program’s design guidelines. TIMING OF PROJECT EXPENSES MN190\101\941811.v1 No project may commence until the EDA has approved the Loan application and the Loan agreement. Any costs incurred prior to execution of the Loan agreement are not eligible expenditures. No building construction may commence until the required city permits are secured. Loan disbursements shall be as provided for within the Loan agreement and shall be made directly to the Applicant/owner’s contractor. The Loan agreement shall reference final contracts for improvements. COMMUNICATION Success of the project depends on the completeness of applications and good communication between all parties. Applicants should feel free to reach out to EDA staff with any questions at any time. PROCEDURAL GUIDELINES FOR APPLICATION AND APPROVAL The applicant shall meet with city staff to obtain information about the Loan program, discuss the project, and obtain application forms. Prior to application, it is recommended that the applicant complete and submit a letter of interest to the EDA. The letter of interest should provide a summary of desired façade improvements. As part of the letter of interest review, the EDA may consider authorization of a façade rendering by the EDA’s architectural consultant or may direct the applicant to proceed with a formal application including preparation of rendering by their contractor(s)/architect. Once the applicant has obtained the rendering and estimates, the applicant must submit a formal application to the EDA for review including the project rendering and detailed estimates. Applications will be received and reviewed on a first-come, first-served basis from the time of submission of a complete application. An inspection of the building may be required. The EDA is a governmental entity and as such must provide public access to public data it receives. Data deemed by Applicant to be nonpublic data under State law should be so designated or marked by Applicant. See Minnesota Statutes, Section 13.591, Subd. 1 and 2. The formal Loan application will be reviewed by EDA staff to determine if it conforms to all city policies and ordinances, and will be presented to the EDA for formal approval, as follows: 1. Staff will complete a preliminary application review and may consult with the EDA’s Financial Advisor and/or EDA Attorney in preparing a report for EDA consideration. 2. Staff will evaluate the project application in terms of the following: a. Project Design - Evaluation of project design will include review of proposed activities, project construction and renovation plans including architectural rendering and final building elevations detailing selected improvements, timelines and capacity to implement the project. b. Financial Feasibility - Availability of funds, private investment, financial packaging and cost effectiveness, and bid-quote submissions. c. Evidence of applicant’s ability to meet the 5% cash requirements. d. Letter of Commitment from other financing sources stating terms and conditions of their participation in the project, if applicable. e. All other information as required in the application and/or additional information as may be requested by the EDA staff. MN190\101\941811.v1 f. Project compliance with all applicable city codes and policies. 3. The EDA Commissioners will review each application in terms of: a. Its consistency with the goals of the city’s Comprehensive Plan and Downtown Small Area Study. b. Whether it is desirable and in the best interests of the public to provide funding for the project. c. The project’s overall potential impact on the community’s economy. 4. The EDA Commissioners will approve or deny the application, or request a resubmission with clarifications, at the EDA’s sole discretion. APPROVAL OR DENIAL OF LOAN APPLICATION The EDA, at its sole discretion, may deny any application on a case-by-case basis, taking into consideration factors such as: consistency with the goals of the city’s Comprehensive Plan and Downtown Small Area Study, the project’s overall impact on the community’s economy, and the above criteria. LOAN POLICY REVIEW The above criteria will be reviewed on an annual basis to ensure that the policies reflected in this document are consistent with the economic development goals set forth by the city. COMPLIANCE WITH BUSINESS SUBSIDY LAW All developers/businesses receiving financial assistance from the City of Monticello EDA shall be subject to the City’s Business Subsidy Policy as amended, and the provisions and requirements set forth under Minnesota Statutes, Sections 116J.993 to 116J.995. LOAN AGREEMENT If the application for a Loan is approved, the applicant/property owner will be required to enter into a Loan agreement to proceed. The Loan agreement will specify the terms and conditions of the Loan as identified herein. DISBURSEMENT OF LOAN FUNDS Upon approval of a Loan application, applicants are required to provide executed contracts with qualified, licensed contractors for work per the approved Loan plans. Contracts shall be consistent with the procedures and requirements herein. Loan funds will be disbursed to the contractor based on completion of work as outlined below. The City’s Chief Building Official will verify completion of work. Upon verification of completion, payment will be dispersed per contract amount for the work completed based on submitted invoice. PROJECT CONTRACTOR PROCEDURES AND REQUIREMENTS A. PARTICIPATING CONTRACTORS: All contractors participating in the Downtown Façade Improvement Loan Program must have a contractor’s license on file with the Minnesota Department of Labor and Industry. The contractors will be responsible for securing insurance of the amounts specified on the application form. The application must contain proof of insurance coverage via a Certification of Insurance Coverage, and the contractor's registration and license number and bond. B. BID/QUOTE SOLICITATION: To participate in the Downtown Façade Improvement Loan Program, the applicant must solicit bids or quotes from at least two vendors. An applicant is free to choose any contractor, provided the license requirements are met and the cost differential in the quotes received MN190\101\941811.v1 does not exceed 20%. C. CONTRACTOR CONTRACT: The contract for work is between the property owner (applicant) and the contractor. Each selected contractor will enter into a contract with the property owner. The contract will outline the terms for completion of the rehabilitation on the project and will include the following: 1. Scope of Work 2. Project Start Date; 3. Project Completion Date; 4. General Conditions; 5. Building Elevations and Architectural Drawings; 6. Special Conditions; 7. Project Warranties; 8. Change Order Procedures; 9. Payment Terms; 10. Termination Procedures. D. FAILURE TO START/COMPLETE PROJECT: Upon approval of the Loan agreement, the applicant and selected contractor will have 180 calendar days in which to complete the contracted work. The 180- day time period shall not be exceeded except through the issuance of a change order. Failure to complete any work within 180 days will be grounds to terminate the Loan agreement. E. PAYMENT PROCEDURES: All contractors will agree to the payment schedule, which is as follows: 1. Pre-payments for contracted services may be disbursed from an escrow account established with the EDA’s specified agency. Such escrow account shall be administered per the Loan agreement. 2. Lien waivers are required for all contractors and subcontractors before payment is made. 3. Final payment for work completed, including any retainage amounts, will be made after work by a contractor is completed with verified receipts and costs incurred, the final inspection has been conducted and the Chief Building Official, property owner, and contractor have signed off on the work. F. CHANGE ORDERS: Change orders to the approved Loan project require the approval of the EDA. Change orders will be allowed only for the following reasons: 1. To rectify hidden deficiencies that are discovered once the work has begun. 2. To change a specification due to unforeseen difficulties arising after work has begun. 3. To address a deficiency that was inadvertently dropped from the project during project packaging. 4. To change completion dates. PROJECT COMPLETION The City’s Chief Building Official will complete a final project inspection and issue a Certificate of Completion verifying project completion per the approved Loan plans. 3.0 Scope This policy applies to all projects that apply for and may receive assistance under the Façade Improvement Program. 4.0 MN190\101\941811.v1 HISTORY Approval Date: August 8, 2018 Approved by: EDA Amendment Date: November 9, 2022 Approved by: EDA Amendment Date: January 10, 2024 Approved by: EDA MN190\101\941811.v1 EXHIBIT A Geographic Program Limits Downtown Facade Improvement Grant Program Eligibility Area MN190\101\941811.v1 EXHIBIT B Permitted Fund Uses – Visual Reference Existing Conditions Photos - 106 Walnut Street Multi Parcel Instr Type Qualied Sale Sale Date Book Page Sale Type Buyer Seller Sale Price Adjusted Sale Price eCRV #eCRV Sale Type S.S. Rcmd. S.S. Rjt. Rsn. Transact Num Y WD U 11/6/1996 I- Improved SPRINGBORG JOHNSON $35,000 $35,000 55887 I 16- SPLIT OR M 55887 Y WD U 6/30/1986 I- Improved JOHNSON JOHNSON $24,500 $24,500 55513 I 01-OLD SALE 55513 N WD U 3/7/1979 I- Improved KJELLBERG KEITH KJELLBERG MARTY $25,000 $25,000 114244 I 14- CFD/INT PA 114244 There are other parcels involved in one or more of the above sales: 2024 Assessment 2023 Assessment 2022 Assessment 2021 Assessment 2020 Assessment +Estimated Land Value $147,000 $83,300 $62,000 $60,200 $60,200 +Estimated Building Value $82,300 $82,300 $73,800 $69,800 $67,300 +Estimated Machinery Value $0 $0 $0 $0 $0 =Total Estimated Market Value $229,300 $165,600 $135,800 $130,000 $127,500 %Change 38.47%21.94%4.46%1.96%2.00% 2024 Payable 2023 Payable 2022 Payable 2021 Payable Estimated Market Value $165,600 $135,800 $130,000 $127,500 -Excluded Value $0 $0 $0 $0 -Homestead Exclusion $0 $0 $0 $0 =Taxable Market Value $165,600 $135,800 $130,000 $127,500 Net Taxes Due $2,512.00 $2,028.00 $2,286.00 $2,232.00 +Special Assessments $0.00 $0.00 $0.00 $0.00 =Total Taxes Due $2,512.00 $2,028.00 $2,286.00 $2,232.00 %Change 23.87%-11.29%2.42%1.45% Summary Parcel ID 155010052130 Property Address 106 WALNUT ST MONTICELLO MN 55362 Sec/Twp/Rng 11-121-025 Brief Tax Description SECT-11 TWP-121 RANGE-025 ORIGINAL PLAT MONTICELLO LOT-013 BLOCK-052 S65FT OF LOTS 13,14&15 BLK 52 &N57FT OF LOTS 1&2 EX S22FT EX E46FT OF S65FT OF LT 13 EX PRT TO VILL(052132) EX TR DES ON DOC630249(052131) (Note: Not to be used on legal documents) Class 233 - 3A COMMERCIAL LAND AND BUILDING District (1101) CITY OF MONTICELLO-0882 School District 0882 (Note: Class refers to Assessor's Classication Used For Property Tax Purposes) Sales  Valuation Taxation Wright County, MN Payment #Receipt #Receipt Print Date Amt Write Off Amt Charge Amt Payment 1118354 10/15/2024 $0.00 $0.00 ($1,256.00) 1055209 5/14/2024 $0.00 $0.00 ($1,256.00) 988947 10/17/2023 $0.00 $0.00 ($1,014.00) 859395 4/28/2023 $0.00 $0.00 ($1,014.00) 777538 1770443 5/13/2022 $0.00 $0.00 ($1,143.00) 775010 1766716 5/12/2022 $0.00 $0.00 ($1,143.00) 672976 1718347 9/27/2021 $0.00 $0.00 ($1,116.00) 621567 1686472 5/5/2021 $0.00 $0.00 ($1,116.00) 545045 1638824 8/10/2020 $0.00 $0.00 ($1,100.00) 521224 1613758 5/11/2020 $0.00 $0.00 ($1,100.00) 423272 1561715 8/26/2019 $0.00 $0.00 $0.00 414342 1546508 5/15/2019 $0.00 $0.00 $0.00 Taxes Paid Sketches Map The information provided on this site is intended for reference purposes only. The information is not suitable for legal, engineering, or surveying purposes. Wright County does not guarantee the accuracy of the information contained herein. | User Privacy Policy | GDPR Privacy Notice Last Data Upload: 3/18/2025, 8:48:08 AM Contact Us Developed by SOUTHWEST SIDE REAR WALL WALNUT ENTRANCE EDA Agenda: 5/14/25 5A. Consideration of Accepting Phase II ESA (Environmental Site Assessment) Report related to 216 Pine Street and adjacent City owned parcel PID #155010034020. Prepared by: Economic Development Manager Meeting Date: 5/14/25 ☒Regular Agenda Item ☐Consent Agenda Item Reviewed by: Community Development Director, Community Economic Development Coordinator Approved by: City Administrator ACTION REQUESTED Motion to accept the Phase II Environmental Site Assessment (ESA) report related to 216 Pine Street and adjacent City owned parcel (PID #155010034020). REFERENCE AND BACKGROUND The EDA is asked to accept the Phase II Environmental Site Assessment (ESA) report related to 216 Pine Street and adjacent City owned parcel, both of which are in Block 34. In February, the EDA authorized WSB & Associates to complete a Phase II ESA for 216 Pine Street, the former Finders Keepers retail store location, and the adjacent City owned parcel (PID#155010034020). A previously completed Phase I report indicated a need to further investigate an identified REC (Recognized Environmental Condition) on the northern edge of 216 Pine Street due to a gas station being located north of the site at the corner of Pine Street and Broadway East in the 1970s and 1980s. Findings in the Phase II ESA report indicate that the site is essentially clean with only minor environmental concerns. Those minor concerns were noted by WSB in the attached email. The 298-page Phase II ESA report is also attached to this staff report. “In one soil sample collected from 8-10 feet below grade at the southern portion of vacant parking lot parcel, diesel range organics (DRO) was detected slightly above the MPCA’s unregulated fill criteria. If disturbed during construction, this soil would still be eligible for reuse on-site, provided it’s placed two feet below pavement or four feet below green space.” “Other than the above, soil across the site appears to meet the MPCA’s definition of unregulated fill – meaning when generated during construction, the soil is eligible for onsite or offsite reuse without environmental restrictions.” “No groundwater or soil vapor contamination was identified. Based on the soil vapor data, there appears to be a low risk of vapor intrusion at the proposed office building.” EDA Agenda: 5/14/25 “We do not recommend any further assessment or investigation at this time.” I. Budget Impact: The budget impact related to accepting the Phase II ESA report is minimal. The cost of completing the report, $18,200, was authorized when the EDA approved the Phase II Work Scope proposal at the February 12, 2025, EDA meeting. The source of funding for the report is the Miscellaneous Professional Services line item in the EDA General Fund. II. Staff Workload Impact: The Community Development Director, Community and Economic Development Coordinator, and Economic Development Manager have committed time to completing tasks related to the proposed environmental studies. Those tasks include discussions with the consultant regarding the desired scope of work tasks and the optimal timeline of completion. Additional time toward this effort involves report preparation and EDA meeting presentation. No other staff are required to complete the work in this effort. III. Comprehensive Plan Impact: Completing the Phase II ESA was a required next step as follow up to the ESA Phase I findings identifying a REC in the northern half of the EDA and City owned parcels in Block 34. Having knowledge of the findings through the completed Phase II ESA will inform the next steps of the Block 34 redevelopment efforts. Redevelopment of Block 34 is identified as a goal within the 2017 Downtown Small Area Plan, an appendix of the Monticello 2040 Vision + Plan, which envision various efforts to create a vibrant Downtown. STAFF RECOMMENDATION Staff recommend the EDA accept the Phase II ESA report related to 216 Pine Street and the adjacent City owned parcel (PID #155010034020). The Phase II ESA provides information indicating the site is essentially clean with only minor amounts of contamination. The level of contamination is so minimal that MPCA regulations-guidelines allow those specific soils to be re- used at this site during redevelopment or at another site, if placed two feet below pavement or four feet below green space. SUPPORTING DATA A. Phase II ESA Report B. Email from Ben Fehr, WSB Project Manager C. Aerial Photo D. Wright County Beacon Property Report Phase II Environmental Site Assessment 3803 Stinson Boulevard WSB Project No. R-021443-000 PHASE II ENVIRONMENTAL SITE ASSESSMENT Block 34 Redevelopment 216 Pine Street and Wright County Parcel 155010034020 Monticello, Minnesota 55362 April 24, 2025 Prepared for: City of Monticello 505 Walnut Street Monticello, Minnesota 55362 WSB Project No. 028376-000 Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Table of Contents Table of Contents Certification 1. INTRODUCTION .......................................................................................... 1 1.1 Site Description and Proposed Redevelopment ......................................... 1 1.2 2024 Phase I ESA ................................................................................. 1 1.3 Scope of Work ....................................................................................... 2 1.4 Work Plan Deviations ............................................................................. 4 2. INVESTIGATION ......................................................................................... 5 2.1 Soil Sampling ........................................................................................ 5 2.2 Groundwater Sampling ........................................................................... 5 2.3 Soil Vapor Sampling .............................................................................. 6 3. RESULTS ................................................................................................... 7 3.1 Soil Observations and Analytical Results ................................................. 7 3.2 Groundwater Observations and Analytical Results .................................... 8 3.3 Soil Vapor Results ................................................................................. 9 4. DISCUSSIONS AND CONCLUSIONS ............................................................ 10 5. LIMITATIONS ............................................................................................. 11 LIST OF FIGURES Figure 1 – Site Location Figure 2 – Investigation Locations Figure 3 – Soil Regulatory Exceedances LIST OF TABLES Table 1 – Soil Analytical Results Table 2 – Groundwater Analytical Results Table 3 – Soil Vapor Analytical Results LIST OF APPENDICES Appendix A – Methods and Procedures Appendix B – Boring Logs Appendix C – Laboratory Reports Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Certification Certification Sheet This report was prepared by: Ben Fehr _______________________________________________ Date: April 24, 2025 Title: Project Manager This report was reviewed by: Ryan Spencer, CHMM _______________________________________________ Date: April 24, 2025 Title: Director of EIR Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 1 1. INTRODUCTION WSB was retained by the City of Monticello (City) to conduct a Phase II Environmental Site Assessment (ESA) at 216 Pine Street (western half; Wright County Parcel 155010034010) and the east adjoining parcel (eastern half; Wright County Parcel 155010034020), located at the southwestern portion of Block 34 in downtown Monticello, Minnesota (Site). The Site location is depicted on Figure 1 . WSB has provided the City with environmental assessment, investigation, and construction oversight services across Block 34 dating back to 2014. WSB recently completed a Phase I ESA report for the western Site parcel (216 Pine Street) on March 13, 2024 (2024 Phase I ESA). The 2024 Phase I ESA identified one recognized environmental condition (REC) associated with the northern portion of the 216 Pine Street parcel (see Section 1.2 ). The purpose of the Phase II ESA was to: 1) Determine if the REC identified in the 2024 Phase I ESA has resulted in subsurface impacts at the northern portion of the 216 Pine Street parcel; and 2) Provide further environmental data at the Site, specifically targeting the footprint of a proposed office building (see Section 1.1 ). WSB understands the Phase II ESA findings will be used for environmental planning and budgeting purposes associated with the proposed redevelopment of the Site. This Phase II ESA has been prepared exclusively for the City. No additional parties can rely on the information in this report without written permission from WSB. 1.1 Site Description and Proposed Redevelopment The Site totals approximately 0.5 acres in size, is currently owned by the City Economic Development Authority (EDA), and is developed with a vacant, single-story commercial building at the southwest corner (southern portion of the 216 Pine Street parcel). Both Site parcels were developed for residential purposes from at least 1914 until the mid-1970s, when the commercial building was constructed. Documented former commercial uses of the 216 Pine Street parcel building include a bank, glass business (Apollo Glass Inc.), and most recently a boutique/retail shop (Finders Keepers). The eastern portion of the Site (Parcel 155010034020) has been used as a paved parking lot since the mid-1970s. The City provided WSB with a copy of Kraus-Anderson’s Redevelopment Proposal prepared for the Site and surrounding Block 34, dated September 30, 2024 (2024 Redevelopment Proposal). WSB understands Design Option 1 of the 2024 Redevelopment Proposal is currently the City’s primary focus which proposes the demolition of the current building and the construction of a new 10,000 square-foot office building at the Site. 1.2 2024 Phase I ESA The following 2024 Phase I ESA report was completed by WSB for the western half of the Site (216 Pine Street parcel):  Phase I Environmental Site Assessment, 216 Pine Street, Monticello, Minnesota 55362, dated March 13, 2024, WSB Project Number 024417-000 Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 2 The 2024 Phase I ESA identified the following REC in connection with the western half of the Site at the 216 Pine Street parcel:  REC-1: Adjoining Contamination Impacts Previous investigations completed at the north adjoining parcel at 100 Broadway Street East identified petroleum and nonpetroleum impacts to soil. The north adjoining parcel was formerly occupied by a gasoline station and auto garage (Phillips 66 Station) from approximately the 1930s until the mid- 1970s. A petroleum leak (LS0019812) was discovered at the adjoining parcel during building demolition in 2015. Subsequently, a contamination cleanup was performed at the western portion of the north adjoining parcel during an intersection improvements project in 2016. Confirmation samples collected from the remaining in place soil near the northern 216 Pine Street parcel boundary identified elevated diesel range organics (DRO) and benzo(a)pyrene (BaP) equivalent impacts above regulatory thresholds in the upper four feet of soil. Based on proximity, it was determined that petroleum and nonpetroleum impacts to soil may be present at the northern portion of the 216 Pine Street parcel. The potential presence of soil impacts requiring response actions during redevelopment at the northern portion of the 216 Pine Street parcel was identified as a REC. Further, the 2024 Phase I ESA identified the following Business Environmental Risks (BERs) for the 216 Pine Street parcel:  Former Buildings The 216 Pine Street parcel was formerly occupied by a residential dwelling and detached garage. The residential structures were removed by 1975, and no records of demolition/removal were identified. Due to the previous development, it is possible that buried foundations and/or building debris may be present at the 216 Pine Street parcel.  Asbestos and Regulated Materials A 2024 Asbestos and Regulated Materials (ARM) Survey identified the presence of asbestos containing material (ACM) and other regulated materials at the 216 Pine Street building. Prior to demolition, all asbestos and regulated materials present should be abated/removed from the building by licensed Minnesota Department of Health (MDH) contractors. The 2024 Phase I ESA recommended the completion of this Phase II ESA to identify potential contamination at the northern portion of the 216 Pine Street parcel associated with the identified REC. Further, this Phase II ESA was completed to obtain additional environmental data across both Site parcels to assist the City with environmental planning and budgeting associated with the proposed office building redevelopment. 1.3 Scope of Work The following tasks were conducted as part of this Phase II ESA to evaluate the current subsurface soil, groundwater, and soil vapor conditions at the Site: Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 3  Completed a public utility locate through Gopher State One Call (GSOC) service as well as a private utility locate prior to boring advancement.  Advanced six borings (EB-1 through EB-6) to depths of 16 feet below grade using a push probe drill rig for soil and groundwater sample collection. Temporary well screens were installed in two borings (EB-1 and EB-3) for the collection of groundwater samples.  Advanced four soil vapor borings (SV-1 through SV-4) to depths of eight feet below grade using a push-probe drill rig for the collection of soil vapor samples.  Screened soil samples for visual and olfactory indications of contamination (e.g., staining, odors, debris, solid waste) and for organic vapors using a photoionization detector (PID) equipped with a 10.6 electron volt (eV) lamp.  Recorded general soil classifications and profiles on boring logs in general accordance with the Unified Soil Classification System (USCS).  Utilized Global Positioning System (GPS) technology with sub-meter accuracy to record the boring locations.  Collected and submitted select soil samples for analysis of: o Volatile organic compounds (VOCs) by Environmental Protection Agency (EPA) Method 8260D o Polycyclic aromatic hydrocarbons (PAHs) by EPA Method 8270E o Resource Conservation and Recovery Act Metals (RCRA Metals) by EPA Method 6020B/7471B o DRO by the Wisconsin Modified Method o Gasoline range organics (GRO) by the Wisconsin Modified Method  Collected and submitted select groundwater samples for analysis of: o VOCs by EPA Method 8260D o PAHs by EPA Method 8270E o RCRA Metals (dissolved; lab-filtered) by EPA Method 6020B/7470A o DRO by the Wisconsin Modified Method o GRO by the Wisconsin Modified Method  Collected and submitted soil vapor samples for analysis of: o VOCs by EPA Method TO-15, full scan o Submitted two trip blanks (one soil and one groundwater) for Quality Assurance/Quality Control (QA/QC) purposes for analysis of: o VOCs by EPA Method 8260D Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 4 o GRO by the Wisconsin Modified Method  Sealed all borings in accordance with MDH requirements.  Prepared this report detailing field observations, laboratory results, conclusions, and recommendations. Details of the tasks completed during this investigation are discussed in the following sections. General field methods are included as Appendix A . 1.4 Work Plan Deviations The Phase II ESA was completed in general accordance with WSB’s Scope of Work and Cost, dated January 14, 2025. No significant work plan deviations were encountered. The following limitation should be noted: Groundwater Samples A total of six groundwater samples (one from each boring) were originally proposed. However, groundwater was only encountered in two borings (EB-1 and EB-3) during the investigation in the upper 16 feet. Therefore, only two groundwater samples were submitted for laboratory analysis. Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 5 2. INVESTIGATION A total of 10 environmental borings (EB-1 through EB-6 and SV-1 through SV-4) were advanced at the Site on March 27, 2024, to investigate potential impacts to soil, groundwater, and soil vapor. The environmental borings were completed by Bergerson-Caswell, Inc. of Maple Plain, Minnesota using a push probe drill rig. The borings were advanced at exterior Site locations. Borings EB-1, EB-2, and SV-1 were advanced at the northern portion of the 216 Pine Street parcel to investigate potential impacts associated with REC-1 identified in the 2024 Phase I ESA (see Section 1.2 ). The remaining seven environmental borings were advanced at other Site locations to achieve adequate spatial distribution for obtaining additional environmental data and primarily targeted the proposed office building footprint (see Section 1.1 ). The boring locations are depicted on Figure 2 . 2.1 Soil Sampling Continuous soil sampling was conducted at each boring using a four-foot-long rod with a new acetate liner for each sample. The borings were advanced to 16 feet below grade. Soil profiles were assessed at two-foot intervals and labeled accordingly. Each soil sample was visually examined for evidence of contamination, field classified and screened for organic vapors using a PID equipped with a 10.6 eV lamp. Soil boring logs are included as Appendix B . A total of 12 soil samples (EB-1 (2-4), EB-1 (10-12), EB-2 (2-4), EB-2 (10-12), EB-3 (4-6), EB-3 (12-14), EB-4 (4-6), EB-4 (8-10), EB-5 (4-6), EB-5 (10-12), EB-6 (2-4), and EB-6 (8-10)) were collected during the investigation and submitted to Eurofins Laboratory of Cedar Falls, Iowa (Eurofins) for analytical testing. At each boring, one shallow soil sample was collected from observed fill soils and a second, deeper soil sample was collected from observed native soils. The two shallow samples from borings EB-1 and EB-2 were collected from 2-4 feet below grade to target the previously documented DRO and BaP impacted soil in the upper four feet at the north adjoining parcel (see Section 1.2 ). The soil samples were collected in general accordance with the Minnesota Pollution Control Agency’s (MPCA’s) Soil Sample Collection and Analysis Procedures Guidance Document (c-prp4-04). 2.2 Groundwater Sampling A total of two groundwater samples were collected from borings EB-1 and EB-3 during the investigation and submitted to Eurofins for analytical testing. The groundwater samples were collected in general accordance with the MPCA’s Groundwater Sample Collection and Analysis Procedures Guidance Document (c- prp4-05). The groundwater samples were collected by installing either five or 10 foot in length, size 10 slotted polyvinyl chloride (PVC) screens (temporary well screens) into the borings with PVC casing to just above ground surface. A unique identification number was assigned to the groundwater samples using the boring number. Water level measurements and screen depths are shown on the soil boring logs in Appendix B . Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 6 2.3 Soil Vapor Sampling A total of four soil vapor samples (one from each soil vapor boring) were collected and submitted to Eurofins for analytical testing. The soil vapor samples were collected from depths of eight feet below grade to target the presumed lowest level of the proposed office building slab. The soil vapor samples were collected using one-liter summa canisters equipped with regulators calibrated to collect the samples with an approximate five-minute draw (i.e., a flow rate of 200 milliliters (mL) per minute). Immediately following each soil vapor sample collection, the sample ports were screened using a PID and the soil headspace results were recorded on the laboratory chain-of-custody. Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 7 3. RESULTS 3.1 Soil Observations and Analytical Results The soil results were compared to the MPCA Residential-Recreational Soil Reference Values (RR-SRVs), Commercial-Industrial SRVs (CI-SRVs) and Screening Soil Leaching Values (SLVs), where established. The MPCA has not established RR- SRVs, CI-SRVs or Screening SLVs for DRO or GRO. Therefore, DRO and GRO analytical results were compared to the criteria listed in the MPCA’s Best Management Practices for Off-site Reuse of Unregulated Fill Guidance Document (c- rem1-01) (i.e., unregulated fill criteria) of 100 milligrams per kilogram (mg/kg). Additionally, unregulated fill criteria require that soil be free from solid waste, debris, asbestos-containing materials, visual staining, and chemical odors; have PID readings less than 10 parts per million (ppm); and consist of analytical concentrations less than the established SRVs and Screening SLVs. For some inorganic and organic compounds, the MPCA has determined that the health-based SRVs are set at higher concentrations than naturally occurring background levels. In these instances, BTVs are used for regulatory comparison instead of SRVs. The MPCA’s Best Management Practices for Off-site Reuse of Unregulated Fill Guidance Document (c-rem1-01) also states that naturally occurring concentrations of some metals such as arsenic, selenium, or copper, sometimes exceed their respective SRV or Screening SLV. Such soils are not considered impacted in the absence of a significant contaminant/anthropogenic source or other field or laboratory indications of contamination. Additionally, the MPCA’s Soil Leaching Values Guidance Document (c-r1-04) notes that “SLVs should not be used for inorganic compounds except in cases where significant contaminant sources are suspected (e.g., plating, fly ash, battery wastes, some scrap yards, mining wastes)”. A summary of the soil analytical testing results is included as Table 1 . Soil regulatory exceedances are shown on Figure 3 . The laboratory analytical report is included in Appendix C . The following is a summary of the soil sample observations and analytical testing results:  Each soil boring was advanced through six inches of asphalt. Below the surficial asphalt, presumed fill soils were observed in the borings extending to depths between 5-8 feet below grade. The fill soils consisted primarily of fine to coarse sand with some medium to coarse gravel. The fill soils were primarily underlain by presumed native sand, gravel, and clay to the terminus depths of 16 feet below grade.  No field-based indications of contamination (e.g., odors, staining, PIDs greater than 10 ppm, buried solid waste) were noted in any of the borings. The PID readings ranged from 0.0 to 0.8 ppm. Asphalt and concrete pieces were observed from 4-6 feet below grade in boring EB-5; however, the asphalt and concrete material accounted for less than five percent of the total soil volume at the specified interval and is not indicative of subsurface contamination.  VOCs and GRO were not detected in the soil samples at concentrations equal to or greater than the laboratory reporting limits. Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 8  A total of 17 PAHs were detected in the soil samples at concentrations equal to or greater than the laboratory reporting limits but below their respective RR-SRVs, CI-SRVs, Screening SLVs, and/or BTVs.  A total of five RCRA Metals (arsenic, barium, chromium, lead, and mercury) were detected in the soil samples at concentrations equal to or greater than the laboratory reporting limits but below their respective RR-SRVs, CI-SRVs, Screening SLVs, and/or BTVs.  DRO was detected at 133 mg/kg in soil sample EB-6 (8-10), above the MPCA’s unregulated fill criteria of 100 mg/kg. DRO was also detected in soil samples EB-1 (2-4) at 7.44 mg/kg, EB-3 (12-14) at 25.9 mg/kg, EB-4 (4-6) at 7.25 mg/kg, EB-4 (8-10) at 96.7 mg/kg and EB-5 (4-6) at 89.5 mg/kg. DRO was not detected at concentrations equal to or greater than the laboratory reporting limits in the remaining six soil samples.  VOCs and GRO were not detected in the soil trip blank. 3.2 Groundwater Observations and Analytical Results The groundwater sample results were compared to the MDH Health Based Guidance (HBG) values and EPA Maximum Contaminant Levels (MCLs), where established. For compounds where multiple HBG values or MCL values are established, the most stringent value was used for regulatory comparison. The HBG values include Health Risk Limits (HRLs), Health Based Values (HBVs), or Risk Assessment Advice (RAA) values. MDH HBG and EPA MCL values are not established for DRO and GRO; therefore, DRO and GRO were compared to the MPCA’s remedial investigation criteria of 1,000 micrograms per liter (µg/L). It should be noted that HRL, HBV, and RAA values are used as a proxy for evaluating the impacts to groundwater; however, for construction purposes the treatment limits for groundwater dewatering discharge would be established in the discharge permit for the project. Groundwater analytical results are summarized in Table 2 . The laboratory analytical report is included in Appendix C . The following is a summary of the groundwater observations and analytical testing results:  Groundwater was first encountered during the drilling in borings EB-1 and EB- 3 at depths of approximately 11 and 14.5 feet below grade, respectively. After allowing the temporary wells to rest for five minutes, static groundwater was measured in borings EB-1 and EB-3 at 11.31 and 13.05 feet below grade, respectively.  No field-based indications of groundwater contamination (e.g., petroleum / chemical odors, free product, petroleum/chemical sheen) were observed while collecting the groundwater samples.  VOCs, PAHs, DRO, and GRO were not detected in the groundwater samples at concentrations equal to or greater than the laboratory reporting limits.  Dissolved arsenic was detected in groundwater samples EB-1 and EB-3 at concentrations of 2.34 and 2.57 µg/L, respectively, below the EPA MCL of 10 Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 9 µg/L. There is no MDH HBG value established for arsenic in groundwater. Dissolved barium was also detected in both groundwater samples at 126 µg/L, below the MDH HRL and EPA MCL of 2,000 µg/L. No other dissolved RCRA Metals were detected at concentrations equal to or greater than the laboratory reporting limits.  VOCs and GRO were not detected in the groundwater trip blank. 3.3 Soil Vapor Results The soil vapor analytical results were compared to 33 times (33X) the MPCA Residential and Commercial/Industrial Intrusion Screening Values (ISVs) and Expedited Intrusion Screening Value (EISVs). The 33X ISVs and EISVs are established by the MPCA to evaluate soil vapor risks and to predict the amount of a contaminant in indoor air that may result from vapor intrusion. The soil vapor results are summarized in Table 3 . The laboratory analytical report is included in Appendix C . The following is a summary of the soil vapor analytical results:  No elevated PID readings (greater than 10 ppm) were detected while collecting the soil vapor samples. The PID readings were detected at 0.1 ppm in SV-1, 1.5 ppm in SV-2, 1.8 ppm in SV-3, and 1.1 ppm in SV-4.  1,3-Butadiene was detected in each soil vapor sample at concentrations ranging from 11 to 35 micrograms per cubic meter (µg/m 3 ), above the 33X Residential ISV of 9.3 µg/m 3 but below the 33X Residential EISV of 93 µg/m 3 , 33X Commercial/Industrial ISV of 90 µg/m 3 and 33X Commercial/Industrial EISV of 700 µg/m 3 .  A total of eight additional VOCs were detected in the soil vapor samples at concentrations equal to or greater than the laboratory reporting limits but below their respective 33X Residential and 33X Commercial/Industrial ISVs and EISVs. Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 10 4. DISCUSSIONS AND CONCLUSIONS This Phase II ESA was conducted to determine if the REC identified in the 2024 Phase I ESA has resulted in subsurface impacts at the northern portion of the 216 Pine Street parcel and provide further environmental data at the Site prior to redevelopment, specifically targeting the proposed office building footprint. The following discussion and conclusion information is provided:  Based on the findings of borings EB-1, EB-2, and SV-1, advanced along the northern boundary of the western Site parcel (216 Pine Street), it does not appear the petroleum leak at the north adjoining parcel (2024 Phase I ESA REC-1) has resulted in subsurface contamination at the Site.  Soil from 8-10 feet below grade at boring EB-6 is defined as regulated fill by the MPCA based upon the laboratory detection of DRO (133 mg/kg) exceeding the unregulated fill criteria of 100 mg/kg. Soil from 8-10 feet below grade in boring EB-6 consisted of presumably native, fine to coarse sand with gravel. The source of DRO impacts in the native soil at boring EB-6 is not known. If disturbed during future construction, the impacted soil in this area is eligible for reuse at the Site under pavement (below two feet of clean cover) and/or green space (below four feet of clean cover). If no viable on-site or offsite reuse can be found, the regulated soil must be hauled off-site for disposal at an MPCA permitted landfill.  Beyond 8-10 feet below grade at/near boring EB-6 (see above), soil across the Site appears to meet the MPCA’s definition of unregulated fill. Unregulated fill generated during future project earthwork is eligible for reuse at the Site without environmental restrictions. If the material is deemed excess and cannot be beneficially reused within the project limits, the unregulated soil should be reused off-site per MPCA Guidance.  Based on the soil vapor data collected at the Site, there is a low risk of vapor intrusion at the proposed office building. Elevated 1,3-butadiene concentrations were detected in Site soil vapor; however, 1,3-butadiene is commonly found in urban environments due to its association with vehicle exhaust and asphalt and is rarely attributed to a subgrade release of petroleum products or hazardous substances by the MPCA.  Only low-level dissolved arsenic and barium were detected in the two groundwater samples collected at the Site. Site groundwater does not appear to be impacted by the historical and/or current Site usage. Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Page 11 5. LIMITATIONS The conclusions and recommendations provided in this report are based on field observations and soil, groundwater, and soil vapor sample analysis completed for this investigation. The services performed by WSB have been conducted with the level of care and skill ordinarily exercised by reputable members of the profession practicing in the same locality under similar budget and time constraints. No other warranty is made or intended. Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Figures FIGURES Do c u m e n t P a t h : M : \ 0 2 8 3 7 6 - 0 0 0 \ G I S \ M a p s \ M o n t i c e l l o P h a s e I I E S A \ F i g 1 _ S i t e L o c a t i o n D a t e S a v e d : 4 / 1 1 / 2 0 2 5 ¯ 1 inch = 2,000 feet 0 2,000 Feet Phase II ESA 216 Pine Street and Parcel 155010034020 Monticello, MN 55362 Figure 1 – Site Location Site Location " " " " ! ! ! ! ! ! SV-1 SV-2 SV-3 SV-4 EB-1 EB-2 EB-4 EB-5 EB-3 EB-6 Do c u m e n t P a t h : M : \ 0 2 8 3 7 6 - 0 0 0 \ G I S \ M a p s \ M o n t i c e l l o P h a s e I I E S A \ F i g 2 _ I n v e s t i g a t i o n L o c a t i o n s D a t e S a v e d : 4 / 1 1 / 2 0 2 5 ¯ 1 inch = 40 feet 0 40 Feet Phase II ESA 216 Pine Street and Parcel 155010034020 Monticello, MN 55362 Figure 2 – Investigation Locations !Soil Borings "Soil Vapor Borings Site Location Parcels ! ! ! ! ! ! EB-1 EB-2 EB-4 EB-5 EB-3 EB-6 Do c u m e n t P a t h : M : \ 0 2 8 3 7 6 - 0 0 0 \ G I S \ M a p s \ M o n t i c e l l o P h a s e I I E S A \ F i g 3 _ S o i l R e g u l a t o r y E x c e e d a n c e s D a t e S a v e d : 4 / 1 5 / 2 0 2 5 ¯ 1 inch = 40 feet 0 40 Feet Phase II ESA 216 Pine Street and Parcel 155010034020 Monticello, MN 55362 Figure 3 – Soil Regulatory Exceedances !Soil Borings Site Location Parcels Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Tables TABLES Table 1 - Soil Analytical Results Phase II ESA Block 34 Redevelopment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Sample ID (Depth Interval) EB-1 (2-4) EB-1 (10-12) EB-2 (2-4) EB-2 (10-12) EB-3 (4-6) EB-3 (12-14) EB-4 (4-6) EB-4 (8-10) EB-5 (4-6) EB-5 (10-12) EB-6 (2-4) EB-6 (8-10) Sample Date 3/27/2024 3/27/2024 3/27/2024 3/27/2024 3/27/2024 3/27/2024 3/27/2024 3/27/2024 3/27/2024 3/27/2024 3/27/2024 3/27/2024 PID Reading in ppm NA 0.1 0.1 0.1 0.1 0.1 0.6 0.3 0.4 0.4 0.3 0.2 0.3 NA NA NA Debris NA -- -- -- -- -- -- -- -- Asphalt / concrete pieces -- -- --NA NA NA Staining NA -- -- -- -- -- -- -- -- -- -- -- --NA NA NA Odor NA -- -- -- -- -- -- -- -- -- -- -- --NA NA NA All Analyzed VOCs NA ND ND ND ND ND ND ND ND ND ND ND ND NA NA NA Acenaphthene 83-32-9 0.00744 <0.00507 <0.00496 <0.00576 <0.00505 <0.00500 <0.00490 <0.00499 <0.00502 <0.00550 <0.00509 <0.00493 460 6,800 81 Acenaphthylene 208-96-8 0.0829 <0.00507 <0.00496 <0.00576 <0.00505 <0.00500 <0.00490 <0.00499 0.0243 <0.00550 0.00933 <0.00493 NE NE NE Anthracene 120-12-7 0.0295 <0.00507 <0.00496 <0.00576 <0.00505 0.0373 <0.00490 <0.00499 0.0164 <0.00550 0.00517 <0.00493 2,800 42,000 1,300 Benzo[a]anthracene 56-55-3 0.151 <0.00507 <0.00496 <0.00576 0.00678 0.0600 <0.00490 0.00545 0.0634 <0.00550 0.0214 0.00894 NE NE NE Benzo[b]fluoranthene 205-99-2 0.259 <0.00507 <0.00496 <0.00576 0.0112 0.0481 <0.00490 0.0171 0.111 0.00885 0.0398 0.0229 NE NE NE Benzo[k]fluoranthene 207-08-9 0.0849 <0.00507 <0.00496 <0.00576 <0.00505 0.0200 <0.00490 <0.00499 0.0343 <0.00550 0.0129 <0.00493 NE NE NE Benzo[a]pyrene 50-32-8 0.180 <0.00507 <0.00496 <0.00576 0.00729 0.0254 <0.00490 0.00759 0.0787 <0.00550 0.0264 0.0175 2 23 1.4 Benzo[g,h,i]perylene 191-24-2 0.158 <0.00507 <0.00496 <0.00576 0.00571 0.0151 <0.00490 0.0313 0.138 <0.00550 0.0191 0.0279 NE NE NE Chrysene 218-01-9 0.158 <0.00507 <0.00496 <0.00576 0.00826 0.0863 <0.00490 0.0384 0.108 <0.00550 0.0272 0.0496 NE NE NE Dibenz(a,h)anthracene 53-70-3 0.0364 <0.00507 <0.00496 <0.00576 <0.00505 0.00565 <0.00490 0.00711 0.0335 <0.00550 <0.00509 0.00882 NE NE NE Fluoranthene 206-44-0 0.162 <0.00507 <0.00496 <0.00576 0.0164 0.328 <0.00490 <0.00499 0.157 <0.00550 0.0467 0.0100 210 2,700 670 Fluorene 86-73-7 <0.00544 <0.00507 <0.00496 <0.00576 <0.00505 <0.00500 <0.00490 <0.00499 <0.00502 0.00765 <0.00509 <0.00493 390 5,800 110 Indeno[1,2,3-cd]pyrene 193-39-5 0.116 <0.00507 <0.00496 <0.00576 <0.00505 0.0117 <0.00490 <0.00499 0.0739 <0.00550 0.0140 0.0112 NE NE NE 2-Methylnaphthalene 91-57-6 <0.00544 <0.00507 <0.00496 <0.00576 0.0124 <0.00500 <0.00490 <0.00499 0.0119 0.00890 0.0160 <0.00493 39 580 NE Naphthalene 91-20-3 0.00939 <0.00507 <0.00496 <0.00576 <0.00505 <0.00500 <0.00490 <0.00499 0.0166 0.00615 0.00534 <0.00493 81 280 4.5 Phenanthrene 85-01-8 0.0249 <0.00507 <0.00496 <0.00576 0.0129 0.359 <0.00490 <0.00499 0.0716 <0.00550 0.0154 0.00574 NE NE NE Pyrene 129-00-0 0.174 <0.00507 <0.00496 <0.00576 0.0154 0.209 <0.00490 0.0208 0.155 <0.00550 0.0438 0.0280 220 3,200 440 Benzo[a]pyrene (BaP) Equivalent 50-32-8 0.262 0.000 0.000 0.000 0.009 0.043 0.000 0.014 0.127 0.001 0.035 0.027 2 A 23 1.4 Arsenic 7440-38-2 2.09 2.21 2.02 3.93 2.57 1.52 2.34 2.14 2.04 3.47 1.64 1.47 9 A 9 A 5.8 Barium 7440-39-3 53.6 60.5 16.8 70.6 29.3 23.1 122 35.4 52.1 73.0 45.6 36.5 3,100 41,000 1,700 Chromium 1 7440-47-3 9.00 13.2 12.0 12.5 8.82 15.7 12.0 11.0 13.8 12.2 15.6 16.2 27 AB 27 AB NE B Lead 7439-92-1 19.6 3.19 3.04 5.56 7.17 4.21 3.60 3.12 34.9 5.67 19.1 4.33 200 460 2,700 Mercury 7439-97-6 0.0289 <0.0170 <0.0187 <0.0208 <0.0159 <0.0178 <0.0190 <0.0162 0.454 <0.0222 <0.0208 <0.0185 2.7 3.1 3.3 All Other Analyzed RCRA 8 Metals NA ND ND ND ND ND ND ND ND ND ND ND ND NA NA NA DRO STL00143 7.44 <3.97 <3.59 <4.38 <3.41 25.9 7.25 96.7 89.5 <6.39 <4.43 133 GRO STL01887 <11.7 <10.4 <10.5 <11.7 <10.4 <10.5 <10.1 <10.3 <10.8 <11.6 <11.1 <10.7 Notes: All results reported in milligrams per kilogram (mg/kg) BOLD = Concentration is greater than or equal to laboratory reporting limit < = Analyte not detected at concentrations greater than or equal to the laboratory reporting limit ND = Not detected above laboratory reporting limits NA = Not Applicable / Not Analyzed NE = Not Established -- = None SRV = Soil Reference Value SLV = Soil Leaching Value 1 = Reported as total chromium A = Value is Background Threshold Value (BTV) and is not a calculated health based SRV. The calculated SRV was determined to be below background values. B = No SRVs or SLV are established for total chromium Blue = Value is greater than or equal to BTV Red = Value is greater than or equal to Screening SLV Purple = Value is greater than or equal to MPCA unregulated fill criteria of 100 mg/kg DRO/GRO Green = Value is greater than or equal to Residential-Recreational SRV Orange = Value is greater than or equal to Commercial-Industrial SRV Volatile Organic Compounds (VOCs) WSB Residential- Recreational SRV (mg/kg) Commercial- Industrial SRV (mg/kg) Screening SLV (mg/kg) CAS # Field Parameters MPCA Unregulated Fill Criteria: 100 mg/kg Polycyclic Aromatic Hydrocarbons (PAHs) Resource Conservation and Recovery Act (RCRA) 8 Metals Diesel Range Organics (DRO) and Gasoline Range Organics (GRO) Page 1 of 1 Table 2 - Groundwater Analytical Results Phase II ESA Block 34 Redevelopment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Sample ID EB-1 EB-3 Static Water Level (ft. below grade) 11.31 13.05 Water Level - First Encounter (ft. below grade) 11.00 14.50 Sample Date 3/27/2024 3/27/2024 All Analyzed VOCs NA ND ND NA NA All Analyzed PAHs NA ND ND NA NA Arsenic, Dissolved 7440-38-2 2.34 2.57 NE 10 Barium, Dissolved 7440-39-3 126 126 2,000 HRL 93 2,000 All Other Analyzed RCRA 8 Metals, Dissolved NA ND ND NA NA DRO STL00143 <100 <98.0 GRO STL01887 <100 <100 Notes: All results reported in micrograms per liter (µg/L) HRL = Health Risk Limit MCL = Maximum Contaminant Level (MCL) BOLD = Concentration is greater than or equal to laboratory reporting limit < = Analyte not detected at concentrations greater than or equal to the laboratory reporting limit ND = Not detected above laboratory reporting limits NA = Not applicable NE = Not established Volatile Organic Compounds (VOCs) Polycyclic Aromatic Hydrocarbons (PAHs) Diesel Range Organics (DRO) and Gasoline Range Organics (GRO) Resource Conservation and Recovery Act (RCRA) 8 Metals, Dissolved CAS # Health Based Risk Guidance Value (µg/L) 1 WSB EPA Maximum Contaminant Level (µg/L) 2 Pink = Value exceeds MPCA criteria for remedial investigation of 1,000 µg/L DRO/GRO Blue = Value exceeds established MDH guidance value Brown = Value exceeds EPA MCL 2 = Values are from the Environmental Protection Agency (EPA) National Primary Drinking Water Regulations document EPA 816-F-09-004, dated May 2009. 1 = The Minnesota Department of Health (MDH) has established health based guidance to evaluate drinking water exposure risks. Values are shown with the types of guidance and the year established. MPCA Criteria for Remedial Investigation: 1,000 µg/L Page 1 of 1 Table 3 - Soil Vapor Analytical Results Phase II ESA Block 34 Redevelopment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Sample ID SV-1 SV-2 SV-3 SV-4 Sample Depth (ft. below grade) 8 8 8 8 PID Reading (ppm) 0.1 1.5 1.8 1.1 Sample Date 3/27/2024 3/27/2024 3/27/2024 3/27/2024 Acetone 67-64-1 < 120 < 120 < 120 130 670,000 670,000 670,000 670,000 Benzene 71-43-2 < 6.4 14 23 16 43 310 370 1,000 1,3-Butadiene 106-99-0 11 31 35 23 9.3 93 90 700 2-Butanone (Methyl Ethyl Ketone (MEK)) 78-93-3 < 15 < 15 < 15 20 100,000 100,000 100,000 100,000 Dichlorodifluoromethane (Freon 12) 75-71-8 70 < 25 < 25 < 25 NE NE NE NE Ethylbenzene 100-41-4 < 8.7 < 8.7 19 14 140 1,400 1,300 13,000 n-Heptane 142-82-5 < 8.2 9.3 14 9.5 14,000 43,000 47,000 140,000 Propylene 115-07-1 < 86 130 170 < 86 100,000 310,000 370,000 1,100,000 Toluene (Methylbenzene) 108-88-3 < 7.5 14 30 23 140,000 170,000 170,000 170,000 All Other Analyzed VOCs NA ND ND ND ND NA NA NA NA Notes: All results reported in micrograms per cubic meter (µg/m3) BOLD = Concentration is greater than or equal to laboratory reporting limit < = Analyte not detected at concentrations greater than or equal to the laboratory reporting limit ND = Analyte not detected greater than or equal to laboratory reporting limits NA = Not applicable NE = Not established ISV = Intrusion Screening Value EISV = Expedited Intrusion Screening Value Volatile Organic Compounds (VOCs) Value is greater than or equal to 33X Residential ISV Value is greater than or equal to 33X Residential EISV Value is greater than or equal to 33X Commercial / Industrial ISV Value is greater than or equal to 33X Commercial / Industrial EISV WSB CAS # Residential 33X ISV (μg/m3) Residential 33X EISV (μg/m3) Commercial / Industrial 33X ISV (μg/m3) Commercial / Industrial 33X EISV (μg/m3) Page 1 of 1 Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Appendix A APPENDIX A Methods and Procedures P a g e | 1 METHODOLOGIES AND PROCEDURES 1. Calibration of MiniRAE Lite Model 7300 PID A MiniRAE Lite Model 7300 Photoionization Detector (PID) will be used to record volatile organic compound readings in the field. Prior to each field usage, the MiniRAE Lite PID will be calibrated using a 100-ppm isobutylene standard in accordance with the instructions outlined in the MiniRAE Lite User’s Manual. The results will be recorded on the calibration log located in the PID carrying case along with the date, time, and project information. An additional calibration verification check will be conducted by attaching the calibration gas to the instrument and then removing it, to make sure the instrument reading returns to zero. 2. Field Log Preparation Boring logs will be used to document subsurface conditions encountered during field activities. If the surface is less than 6 inches thick, the boring location surface material will be recorded in the “notes” section on the log. The sample interval, recovery, and PID volatile organic compound readings will be recorded for each sample interval. In general, the methods outlined in the Standard Practice for Description and Identification of Soils (ASTM D2488-93) will be used, with soil descriptions recorded in the following order:  A description of the main soil group within the sample (e.g., silty sand, clay, silt, etc.).  Optional. If coarse-grained soil (i.e., sand or gravel), include a brief description of the predominant particle grain size(s) (e.g., fine, medium, coarse).  Optional. If fine grained soil (i.e., clay or silt), describe the consistency based on finger pressure (e.g., very soft = thumb will penetrate soil more than 1 inch, soft = thumb will penetrate soil about 1 inch, firm = thumb will penetrate soil about ¼ inch, hard = thumb will not indent soil, but thumbnail will easily make a mark, very hard = thumbnail will not indent soil).  If another soil group is present in the sample describe its concentration with an adjective based on the percentages present within the sample (i.e., trace = < 5%, few = 5 to 10%, little = 10 to 25%, some = 30 to 45 %).  Describe the overall moisture of the soil sample using the terms dry, moist, or wet (do not use the term “saturated”).  Describe the color of the main soil group (e.g., brown, gray, etc.).  Be sure to note the presence of any unusual occurrences (e.g., brick, concrete, glass, debris, petroleum odor, etc.). Include the specific depth interval of the occurrence of unique material in the description or in the Remarks.  If the soil material is fill or probable fill, note in parenthesis [e.g., (fill), (probable fill)]. Soil description examples: Silty sand, fine to medium grained, with few gravel, moist, dark brown. Sandy clay with trace gravel, soft, wet, gray, petroleum odor (fill). If groundwater is encountered, the depth to water will be recorded on the bottom of the log. In addition, the sample name, analysis, and time of all samples collected for analytical analysis will be also recorded in the “notes” column. Laboratory sample collection documentation examples: SP-2 (2-4’) Metals, PAH, VOC @ 9:00 SB-2 (4-6’) DRO, GRO, VOC @ 9:30 P a g e | 2 3. Hydraulic Push-Probe Soil Borings Prior to boring activities, subsurface utility lines will be marked by Gopher State One Call, Minnesota’s on- call utility locating service. Soil boring installations will be accomplished by hydraulic push-probe boring methodology. Soil sampling will be achieved by hydraulically pushing a 2-inch outside diameter, stainless- steel rod to the desired test depth. Soil samples will be collected continuously from each boring for field logging and screening for volatile organic vapor concentrations. To avoid cross contamination of soil samples collected during boring activities, the hydraulic push-probe boring equipment will be cleaned between boreholes utilizing an Alconox solution and rinsed with potable water. 4. Soil Sample Collection, Screening, and Analysis Soil samples will be classified in the field consistent with the Unified Soil Classification System (USCS). Boring logs will be maintained describing the sample collection location, soil composition, field methods, and environmental monitoring data such as visual and olfactory observations and photoionization detector (PID) results. Soil samples collected during sampling activities will be screened for the presence of organic vapors using a PID equipped with a 10.6 or 11.7 electron volt (eV) lamp. The PID will be calibrated prior to daily field activities to an isobutylene standard for readings in parts per million benzene on a volume/volume basis. For each sample, a clean polyethylene bag will be half filled with soil and immediately sealed. The bag will be shaken for approximately 15 seconds and then stored for a minimum of 10 minutes for headspace development. The bag will then be shaken for another 15 seconds and the PID probe will be inserted through a small opening in the bag. The highest PID reading within approximately 2 seconds after insertion will be recorded for each sample. A new pair of disposable nitrile gloves will be used during the collection of each sample to reduce cross contamination. Soil sampling tools will be decontaminated with Alconox detergent (or similar) and rinsed with potable water prior to each sample collection. Soil samples selected for laboratory analysis will be placed in laboratory‐prepared containers, labeled, stored on ice, and shipped with the chain of custody form to a Minnesota‐certified laboratory. Unique identification numbers will be assigned to soil samples using the boring number, sample depth interval and the designation of “B” for soil boring. The respective sample containers will be labeled with the following information: Unique sample number Site name Name of sampler Time and date Desired analysis 5. Water Level Measurement Water level measurements will be collected from the temporary wells using a battery powered tape-guided water level meter. The water level meter will be inspected and cleaned using an Alconox solution and rinsed with potable prior to each measurement to reduce the risk of cross contamination. Each temporary well will be allowed to rest for at least 5 minutes prior to measuring to allow the well to adjust to the isostatic pressure. The distance from the ground surface to the well water surface will be measured and recorded to the nearest 0.01 foot. The measurement results will be recorded on the boring logs along with any other general well observations. 6. Groundwater Sample Collection Groundwater samples will be collected through temporary screened PVC monitoring wells placed in the boreholes. Groundwater samples will be collected from the temporary wells using polyethylene tubing and a peristaltic pump. Upon collection, groundwater samples will be placed in laboratory-prepared containers P a g e | 3 and examined for evidence of impacts using visual and olfactory criteria. Unique identification numbers will be assigned to groundwater samples using the boring number and the designation of “GW” for groundwater. Samples will be labeled with the same sampling information noted above (see soil sample collection). Immediately following collection, groundwater samples will be placed on ice in a field cooler. Samples will then be transported to a Minnesota-certified laboratory with chain-of-custody documentation. 7. Soil Vapor Collection Soil vapor samples will be collected through temporary soil vapor points placed in the boreholes. Vapor samples will be collected from the borings by attaching a vapor tip to the probe, advancing the probe to the desired depth, retracting the rod approximately 6-12 inches to allow for a vapor gap, opening up the vapor tip, and then connecting a length of new poly/Teflon tubing. The tubing will then be purged using a hand pump, and the sample will be extracted using a vapor sampling canister following the laboratory’s instructions. Unique identification numbers will be assigned to soil vapor samples using the boring number and the designation of “SV” for soil vapor. Samples will be then labeled with the same sampling information noted above (see soil sample collection). To reduce the potential for cross-contamination with ambient air, the following best management practices will be followed before/during the soil vapor sample collection:  Teflon tubing will be used to collect the soil vapor samples.  Prior to the sampling event, the tubing will be stored away from potential sources of contamination (e.g., underground parking garages, building exhaust vents, cigarette smoke, etc.). The tubing will be stored in an office closet, if available.  While in the field, the tubing will be kept in a sealable bag in the work truck prior to sample collection.  All vehicles, including the drill rig, will be shut off prior to exposing the tubing to the ambient air and connecting to the sampling port.  Tubing will never be re-used once samples are collected. 8. Trip Blanks Prior to leaving the office, trip blank containers will be placed in the cooler(s) to detect any volatile compounds that may enter the sample containers during container transport, sample collection, sample transport, or sample analysis. The trip blanks will be provided by the laboratory and labeled “trip blank”. Each trip blank will be handled and preserved in the same manner as the investigation samples. Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Appendix B APPENDIX B Boring Logs Fill SP SM SP SP GP SP Soil Sample EB-1 (2-4) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals Groundwater EB-1 - VOCs, DRO, GRO, PAHs, and Dissolved RCRA Metals Soil Sample EB-1 (10-12) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals 3.00 4.00 4.00 4.00 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 ASPHALT (fill) SAND - dark brown, with gravel, medium to coarse, moist, no odors (fill) SAND (silty) - black, fine to medium, moist, no odors (fill) SAND - light brown, trace gravel, fine to medium, moist, no odors (fill) SAND - light brown, trace gravel, fine to medium, moist, no odors GRAVEL - dark gray to white, with sand, medium to coarse, moist, no odors. wetness observed at 11 feet bgs SAND - dark brown, with gravel, medium to coarse, wet, no odors End of Boring 16.0'. USCS WSB Project Number:028376-000 Boring Identification:EB-1 End: 3/27/2025 1:49:00 PMStart: 3/27/2025 1:34:00 PM Logger: Zach BeckmanDriller: Bergerson Boring Sealing Time/Date: 3-27-25 1410 Notes: Date 3/27/2025 Time 1405 Water Depth Soil Boring Log Page 1 of 1 Boring Location:See Location MapClient:City of Monticello Drilling Method:216 Pine Street + PID 155010034020 Date:3/27/25Project Name:Monticello Phase II ESA Address: NotesSymbolDepth (ft.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Peristaltic Water Sampling Method 11.31 Grab Soil Sampling Method Screen Depth (ft) 6 - 16 Ground Surface Elevation (ft) Water Level Measurement (ft.) WL Direct Push Recovery (ft.) 216 Pine Street + PID 155010034020 PID Reading (ppm) Soil Description Well Installation Details WS B E N V I R O N M E N T A L B O R I N G L O G 2 - W S B . G D T - 0 4 / 1 1 / 2 5 1 0 : 3 2 - M : \ 0 2 8 3 7 6 - 0 0 0 \ A D M I N \ D O C S \ P H A S E I I E S A \ F I E L D L O G S \ 0 - G I N T L O G S - M O N T I C E L L O - D R A F T S . G P J Fill SP SM SP SP SP SP CL SP CL Soil Sample EB-2 (2-4) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals No Recovery - 6 to 8 ft bgs Soil Sample EB-2 (10-12) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals 4.00 2.00 3.00 3.00 0.0 0.1 0.2 0.2 0.1 0.2 0.0 ASPHALT (fill) SAND - Dark brown, trace gravel, fine to medium, moist, no odors (fill) SAND (silty) - Light brown, fine, moist, no odors (fill) SAND - light brown, some gravel, fine to medium, moist, no odors (fill) SAND - light brown to white, with gravel, fine to medium, moist, no odors (fill) SAND - dark brown, with gravel, medium to coarse, moist, no odors (fill) SAND - light brown to dark brown, with gravel, medium to coarse, moist, no odors CLAY - dark gray, trace sand, dense, moist, no odors SAND - dark brown, with gravel, medium to coarse, moist, no odors CLAY - dark gray, trace sand, dense, moist, no odors End of Boring 16.0'. USCS WSB Project Number:028376-000 Boring Identification:EB-2 End: 3/27/2025 1:26:00 PMStart: 3/27/2025 1:06:00 PM Logger: Zach BeckmanDriller: Bergerson Boring Sealing Time/Date: 3-27-25 1330 Notes:Groundwater not encountered during drilling. Date Time Water Depth Soil Boring Log Page 1 of 1 Boring Location:See Location MapClient:City of Monticello Drilling Method:216 Pine Street + PID 155010034020 Date:3/27/25Project Name:Monticello Phase II ESA Address: NotesSymbolDepth (ft.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NA Water Sampling Method Grab Soil Sampling Method Screen Depth (ft) Ground Surface Elevation (ft) Water Level Measurement (ft.) WL Direct Push Recovery (ft.) 216 Pine Street + PID 155010034020 PID Reading (ppm) Soil Description Well Installation Details WS B E N V I R O N M E N T A L B O R I N G L O G 2 - W S B . G D T - 0 4 / 1 1 / 2 5 1 0 : 3 2 - M : \ 0 2 8 3 7 6 - 0 0 0 \ A D M I N \ D O C S \ P H A S E I I E S A \ F I E L D L O G S \ 0 - G I N T L O G S - M O N T I C E L L O - D R A F T S . G P J Fill SP SM SM SP SM GP Soil Sample EB-3 (4-6) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals Groundwater EB-3 - VOCs, DRO, GRO, PAHs, and dissolved RCRA Metals Soil Sample EB-3 (12-14) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals 3.00 4.00 4.00 4.00 0.1 0.0 0.1 0.1 0.8 0.1 0.6 0.2 ASPHALT (fill) SAND - dark brown, trace gravel, fine to medium, moist, no odors (fill) SAND (silty) - light brown to red, fine, moist, no odors SAND (silty) - light gray to white, fine, moist, no odors SAND - light gray to white, with gravel, fine to medium, moist, no odors SAND (silty) - light gray, fine, moist, no odors GRAVEL - light gray to brown, with sand, fine to coarse, wet, no odors End of Boring 16.0'. USCS WSB Project Number:028376-000 Boring Identification:EB-3 End: 3/27/2025 2:40:00 PMStart: 3/27/2025 2:29:00 PM Logger: Zach BeckmanDriller: Bergerson Boring Sealing Time/Date: 3-27-25 1450 Notes: Date 3/27/2025 Time 1447 Water Depth Soil Boring Log Page 1 of 1 Boring Location:See Location MapClient:City of Monticello Drilling Method:216 Pine Street + PID 155010034020 Date:3/27/25Project Name:Monticello Phase II ESA Address: NotesSymbolDepth (ft.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Peristaltic Water Sampling Method 13.05 Grab Soil Sampling Method Screen Depth (ft) 11 - 16 Ground Surface Elevation (ft) Water Level Measurement (ft.) WL Direct Push Recovery (ft.) 216 Pine Street + PID 155010034020 PID Reading (ppm) Soil Description Well Installation Details WS B E N V I R O N M E N T A L B O R I N G L O G 2 - W S B . G D T - 0 4 / 1 1 / 2 5 1 0 : 3 2 - M : \ 0 2 8 3 7 6 - 0 0 0 \ A D M I N \ D O C S \ P H A S E I I E S A \ F I E L D L O G S \ 0 - G I N T L O G S - M O N T I C E L L O - D R A F T S . G P J Fill SP GP SP CL No recovery - 2 to 4 ft bgs Soil Sample EB-4 (4-6) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals Soil Sample EB-4 (8-10) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals 2.00 3.00 4.00 4.00 0.2 0.3 0.2 0.4 0.3 0.0 0.0 ASPHALT (fill) SAND - brown, trace gravel, fine to medium, moist, no odors (fill) GRAVEL - light brown, with sand, fine to coarse, moist, no odors (fill) SAND - light brown, with gravel, fine to medium, moist, no odors CLAY - Dark gray, fine, dense, moist, no odors End of Boring 16.0'. USCS WSB Project Number:028376-000 Boring Identification:EB-4 End: 3/27/2025 12:58:00 PMStart: 3/27/2025 12:44:00 PM Logger: Zach BeckmanDriller: Bergerson Boring Sealing Time/Date: 3-27-25 1710 Notes:Well set and left for 4 hours post initial drilling. Groundwater not encountered during sampling. Date Time Water Depth Soil Boring Log Page 1 of 1 Boring Location:See Location MapClient:City of Monticello Drilling Method:216 Pine Street + PID 155010034020 Date:3/27/25Project Name:Monticello Phase II ESA Address: NotesSymbolDepth (ft.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NA Water Sampling Method Grab Soil Sampling Method Screen Depth (ft) Ground Surface Elevation (ft) Water Level Measurement (ft.) WL Direct Push Recovery (ft.) 216 Pine Street + PID 155010034020 PID Reading (ppm) Soil Description Well Installation Details WS B E N V I R O N M E N T A L B O R I N G L O G 2 - W S B . G D T - 0 4 / 1 1 / 2 5 1 0 : 3 2 - M : \ 0 2 8 3 7 6 - 0 0 0 \ A D M I N \ D O C S \ P H A S E I I E S A \ F I E L D L O G S \ 0 - G I N T L O G S - M O N T I C E L L O - D R A F T S . G P J Fill SP SM SP SP GP GP CL Soil Sample EB-5 (4-6) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals Asphalt and concrete pieces encountered in soil column at 4-6 ft. <5% by volume of interval Soil Sample EB-5 (10-12) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals 3.00 4.00 4.00 4.00 0.4 0.2 0.4 0.2 0.3 0.3 0.2 0.2 ASPHALT (fill) SAND - Dark brown to black, trace gravel, fine to coarse, moist, no odors (fill) SAND (silty) - Light brown, trace gravel, fine, moist, no odors (fill) SAND - light brown to black, with gravel, fine to coarse, moist, no odors (fill) SAND - dark brown, with gravel, trace silt lenses, fine to coarse, moist, no odors (fill) GRAVEL - light brown to white, with sand, medium to coarse, moist, no odors. (fill) GRAVEL - light brown, with sand, medium to coarse, moist, no odors. CLAY - dark gray clay, dense, moist, no odors End of Boring 16.0'. USCS WSB Project Number:028376-000 Boring Identification:EB-5 End: 3/27/2025 12:06:00 PMStart: 3/27/2025 11:52:00 AM Logger: Zach BeckmanDriller: Bergerson Boring Sealing Time/Date: 3-27-25 1208 Notes:Groundwater not encountered during drilling. Date Time Water Depth Soil Boring Log Page 1 of 1 Boring Location:See Location MapClient:City of Monticello Drilling Method:216 Pine Street + PID 155010034020 Date:3/27/25Project Name:Monticello Phase II ESA Address: NotesSymbolDepth (ft.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NA Water Sampling Method Grab Soil Sampling Method Screen Depth (ft) Ground Surface Elevation (ft) Water Level Measurement (ft.) WL Direct Push Recovery (ft.) 216 Pine Street + PID 155010034020 PID Reading (ppm) Soil Description Well Installation Details WS B E N V I R O N M E N T A L B O R I N G L O G 2 - W S B . G D T - 0 4 / 1 1 / 2 5 1 0 : 3 2 - M : \ 0 2 8 3 7 6 - 0 0 0 \ A D M I N \ D O C S \ P H A S E I I E S A \ F I E L D L O G S \ 0 - G I N T L O G S - M O N T I C E L L O - D R A F T S . G P J Fill SP SP GP SP SP CL Soil Sample EB-6 (2-4) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals No recovery from 6 to 8 feet bgs Soil Sample EB-6 (8-10) - VOCs, DRO, GRO, PAHs, and 8 RCRA Metals 3.00 2.00 4.00 4.00 0.1 0.2 0.7 0.3 0.1 0.1 0.1 ASPHALT (fill) SAND - dark brown to black, some clay, trace gravel, fine to medium, moist, no odors (fill) SAND - light brown, with gravel, medium to coarse, moist, no odors (fill) GRAVEL - light brown to white, with sand, medium to coarse, moist, no odors (fill) SAND - dark brown, with gravel, fine to coarse, moist, no odors SAND - light brown, with gravel, medium, moist, no odors CLAY - dark gray clay, dense, moist, no odors End of Boring 16.0'. USCS WSB Project Number:028376-000 Boring Identification:EB-6 End: 3/27/2025 11:32:00 AMStart: 3/27/2025 11:11:00 AM Logger: Zach BeckmanDriller: Bergerson Boring Sealing Time/Date: 3-27-25 1135 Notes:Groundwater not encountered during drilling. Date Time Water Depth Soil Boring Log Page 1 of 1 Boring Location:See Location MapClient:City of Monticello Drilling Method:216 Pine Street + PID 155010034020 Date:3/27/25Project Name:Monticello Phase II ESA Address: NotesSymbolDepth (ft.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NA Water Sampling Method Grab Soil Sampling Method Screen Depth (ft) Ground Surface Elevation (ft) Water Level Measurement (ft.) WL Direct Push Recovery (ft.) 216 Pine Street + PID 155010034020 PID Reading (ppm) Soil Description Well Installation Details WS B E N V I R O N M E N T A L B O R I N G L O G 2 - W S B . G D T - 0 4 / 1 1 / 2 5 1 0 : 3 2 - M : \ 0 2 8 3 7 6 - 0 0 0 \ A D M I N \ D O C S \ P H A S E I I E S A \ F I E L D L O G S \ 0 - G I N T L O G S - M O N T I C E L L O - D R A F T S . G P J Phase II Environmental Site Assessment 216 Pine Street and Wright County Parcel 155010034020 WSB Project No. 028376-000 Appendix C APPENDIX C Laboratory Reports ANALYTICAL REPORT PREPARED FOR Attn: Ben Fehr WSB & Associates, Inc 701 Xenia Ave South Suite 300 Minneapolis, Minnesota 55416 Generated 4/10/2025 3:35:30 PM JOB DESCRIPTION Monticello Phase II Esa 028376 JOB NUMBER 310-303009-1 See page two for job notes and contact information. Cedar Falls IA 50613 3019 Venture Way Eurofins Cedar Falls Page 1 of 123 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eurofins Cedar Falls Eurofins Cedar Falls is a laboratory within Eurofins Environment Testing North Central, LLC, a company within Eurofins Environment Testing Group of Companies Job Notes This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins Environment Testing North Central, LLC Project Manager. Authorization Generated 4/10/2025 3:35:30 PM Authorized for release by Bob Michels, Project Manager I Bob.Michels@et.eurofinsus.com (319)277-2401 Page 2 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Table of Contents Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Laboratory Job ID: 310-303009-1 Page 3 of 123 Eurofins Cedar Falls 4/10/2025 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Job Narrative 310-303009-1 Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary Page unless otherwise noted under the individual analysis.Data qualifiers and/or narrative comments are included to explain any exceptions,if applicable. ·Matrix QC may not be reported if insufficient sample is provided or site-specific QC samples were not submitted.In these situations,to demonstrate precision and accuracy at a batch level,a LCS/LCSD may be performed,unless otherwise specified in the method. ·Surrogate and/or isotope dilution analyte recoveries (if applicable)which are outside of the QC window are confirmed unless attributed to a dilution or otherwise noted in the narrative. Regulated compliance samples (e.g.SDWA,NPDES)must comply with the associated agency requirements/permits. Receipt The samples were received on 3/29/2025 8:45 AM.Unless otherwise noted below,the samples arrived in good condition,and, where required,properly preserved and on ice.The temperatures of the 2 coolers at receipt time were 0.7°C and 2.9°C. GC/MS VOA Method 8260D:The method requirement for no headspace was not met.The following volatile sample was analyzed with headspace in the sample container:Trip Blank -GW (310-303009-16). Method 8260D:The continuing calibration verification (CCV)associated with batch 310-450532 recovered outside the control limit for Bromomethane.The CCVL associated with this CCV passes CCVL criteria for the affected analytes;therefore,the data have been reported.The associated sample is impacted:(CCV 310-450532/4). No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. GC/MS Semi VOA Method 8270E_QQQ:Surrogate recovery was outside acceptance limits for the following matrix spike/matrix spike duplicate (MS/MSD)sample:(310-303003-F-12-A MS).The parent sample's surrogate recovery was within limits.The MS/MSD sample has been qualified and reported. Method 8270E_QQQ:The continuing calibration verification (CCV)associated with batch 310-450564 recovered above the upper control limit for Fluoranthene (22.0 %D)and Pyrene (24.7 %D).The samples associated with this CCV were non-detects for the affected analytes;therefore,the data have been reported.The associated sample is impacted:(CCV 310-450564/3). Method 8270E_QQQ:Surrogate recovery for the following sample was outside control limits:EB-2 (10-12)(310-303009-4). Evidence of matrix interference is present;therefore,re-extraction and/or re-analysis was not performed. Method 8270E_QQQ:The continuing calibration verification (CCV)associated with batch 310-450564 recovered above the upper control limit for Nitrobenzene d-5 (26.7 %D).Sample surrogates were within control criteria. Method 8270E_QQQ:The continuing calibration verification (CCV)associated with batch 310-450703 recovered above the upper control limit for nitrobenzene-d5 (25.6%D).The samples associated with this CCV were non-detects for the affected analytes; therefore,the data have been reported.The associated sample is:(CCV 310-450703/3). No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. Gasoline Range Organics Method WI_GRO:The method requirement for no headspace was not met.The following volatile sample was analyzed with headspace in the sample container(s):Trip Blank -GW (310-303009-16). No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. Diesel Range Organics Method WI_DRO:The matrix spike /matrix spike duplicate (MS/MSD)recoveries for preparation batch 310-450372 and analytical batch 310-450784 was outside control limits.Sample matrix interference and/or non-homogeneity is suspected. Case Narrative Client: WSB & Associates, Inc Job ID: 310-303009-1 Project: Monticello Phase II Esa 028376 Eurofins Cedar Falls Job ID: 310-303009-1 Eurofins Cedar Falls Page 4 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Method WI_DRO:Significant peaks,readily distinguished from background,were detected in the following samples within five minutes after the end of the analytical window defined by the last component eluting in the Diesel Range Organics (DRO)mix (i.e., n-Octacosane):EB-1 (2-4)(310-303009-1),EB-3 (12-14)(310-303009-6)and EB-4 (4-6)(310-303009-7). Method WI_DRO:Significant peaks,readily distinguished from background,were detected in the following sample within five minutes after the end of the analytical window defined by the last component eluting in the Diesel Range Organics (DRO)mix (i.e., n-Octacosane):EB-6 (8-10)(310-303009-12). Method WI_DRO:Significant peaks,readily distinguished from background,were detected in the following samples within five minutes after the end of the analytical window defined by the last component eluting in the Diesel Range Organics (DRO)mix (i.e., n-Octacosane):EB-4 (8-10)(310-303009-8)and EB-5 (4-6)(310-303009-9). No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. Metals No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. General Chemistry No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. Case Narrative Client: WSB & Associates, Inc Job ID: 310-303009-1 Project: Monticello Phase II Esa 028376 Eurofins Cedar Falls Job ID: 310-303009-1 (Continued)Eurofins Cedar Falls Page 5 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Sample Summary Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Lab Sample ID Client Sample ID Matrix Collected Received 310-303009-1 EB-1 (2-4)Solid 03/27/25 15:00 03/29/25 08:45 310-303009-2 EB-1 (10-12)Solid 03/27/25 15:05 03/29/25 08:45 310-303009-3 EB-2 (2-4)Solid 03/27/25 15:10 03/29/25 08:45 310-303009-4 EB-2 (10-12)Solid 03/27/25 15:15 03/29/25 08:45 310-303009-5 EB-3 (4-6)Solid 03/27/25 15:20 03/29/25 08:45 310-303009-6 EB-3 (12-14)Solid 03/27/25 15:25 03/29/25 08:45 310-303009-7 EB-4 (4-6)Solid 03/27/25 15:30 03/29/25 08:45 310-303009-8 EB-4 (8-10)Solid 03/27/25 15:35 03/29/25 08:45 310-303009-9 EB-5 (4-6)Solid 03/27/25 15:40 03/29/25 08:45 310-303009-10 EB-5 (10-12)Solid 03/27/25 15:45 03/29/25 08:45 310-303009-11 EB-6 (2-4)Solid 03/27/25 15:50 03/29/25 08:45 310-303009-12 EB-6 (8-10)Solid 03/27/25 15:55 03/29/25 08:45 310-303009-13 Trip Blank - Soil Solid 03/27/25 08:00 03/29/25 08:45 310-303009-14 EB-1 Water 03/27/25 14:05 03/29/25 08:45 310-303009-15 EB-3 Water 03/27/25 15:00 03/29/25 08:45 310-303009-16 Trip Blank - GW Water 03/27/25 08:00 03/29/25 08:45 Eurofins Cedar Falls Page 6 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-1 (2-4)Lab Sample ID: 310-303009-1 ☼Acenaphthene RL 0.00544 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.00744 8270E ☼Acenaphthylene 0.00544 mg/Kg Total/NA10.0829 8270E ☼Anthracene 0.00544 mg/Kg Total/NA10.0295 8270E ☼Benzo(a)anthracene 0.00544 mg/Kg Total/NA10.151 8270E ☼Benzo(a)pyrene 0.00544 mg/Kg Total/NA10.180 8270E ☼Benzo(b)fluoranthene 0.00544 mg/Kg Total/NA10.259 8270E ☼Benzo(g,h,i)perylene 0.00544 mg/Kg Total/NA10.158 8270E ☼Benzo(k)fluoranthene 0.00544 mg/Kg Total/NA10.0849 8270E ☼Chrysene 0.00544 mg/Kg Total/NA10.158 8270E ☼Dibenz(a,h)anthracene 0.00544 mg/Kg Total/NA10.0364 8270E ☼Fluoranthene 0.00544 mg/Kg Total/NA10.162 8270E ☼Indeno(1,2,3-cd)pyrene 0.00544 mg/Kg Total/NA10.116 8270E ☼Naphthalene 0.00544 mg/Kg Total/NA10.00939 8270E ☼Phenanthrene 0.00544 mg/Kg Total/NA10.0249 8270E ☼Pyrene 0.00544 mg/Kg Total/NA10.174 8270E ☼Diesel Range Organics (DRO)3.97 mg/Kg Total/NA17.44 WI-DRO ☼Arsenic 0.919 mg/Kg Total/NA52.09 6020B ☼Barium 0.919 mg/Kg Total/NA553.6 6020B ☼Chromium 1.38 mg/Kg Total/NA59.00 6020B ☼Lead 2.30 mg/Kg Total/NA519.6 6020B ☼Mercury 0.0177 mg/Kg Total/NA10.0289 7471B Client Sample ID: EB-1 (10-12)Lab Sample ID: 310-303009-2 ☼Arsenic RL 0.996 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA52.21 6020B ☼Barium 0.996 mg/Kg Total/NA560.5 6020B ☼Chromium 1.49 mg/Kg Total/NA513.2 6020B ☼Lead 2.49 mg/Kg Total/NA53.19 6020B Client Sample ID: EB-2 (2-4)Lab Sample ID: 310-303009-3 ☼Arsenic RL 1.05 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA52.02 6020B ☼Barium 1.05 mg/Kg Total/NA516.8 6020B ☼Chromium 1.57 mg/Kg Total/NA512.0 6020B ☼Lead 2.62 mg/Kg Total/NA53.04 6020B Client Sample ID: EB-2 (10-12)Lab Sample ID: 310-303009-4 ☼Arsenic RL 1.14 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA53.93 6020B ☼Barium 1.14 mg/Kg Total/NA570.6 6020B ☼Chromium 1.70 mg/Kg Total/NA512.5 6020B ☼Lead 2.84 mg/Kg Total/NA55.56 6020B Client Sample ID: EB-3 (4-6)Lab Sample ID: 310-303009-5 ☼2-Methylnaphthalene RL 0.00505 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.0124 8270E ☼Benzo(a)anthracene 0.00505 mg/Kg Total/NA10.00678 8270E ☼Benzo(a)pyrene 0.00505 mg/Kg Total/NA10.00729 8270E ☼Benzo(b)fluoranthene 0.00505 mg/Kg Total/NA10.0112 8270E Eurofins Cedar Falls This Detection Summary does not include radiochemical test results. Page 7 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-3 (4-6) (Continued)Lab Sample ID: 310-303009-5 ☼Benzo(g,h,i)perylene RL 0.00505 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.00571 8270E ☼Chrysene 0.00505 mg/Kg Total/NA10.00826 8270E ☼Fluoranthene 0.00505 mg/Kg Total/NA10.0164 8270E ☼Phenanthrene 0.00505 mg/Kg Total/NA10.0129 8270E ☼Pyrene 0.00505 mg/Kg Total/NA10.0154 8270E ☼Arsenic 0.940 mg/Kg Total/NA52.57 6020B ☼Barium 0.940 mg/Kg Total/NA529.3 6020B ☼Chromium 1.41 mg/Kg Total/NA58.82 6020B ☼Lead 2.35 mg/Kg Total/NA57.17 6020B Client Sample ID: EB-3 (12-14)Lab Sample ID: 310-303009-6 ☼Anthracene RL 0.00500 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.0373 8270E ☼Benzo(a)anthracene 0.00500 mg/Kg Total/NA10.0600 8270E ☼Benzo(a)pyrene 0.00500 mg/Kg Total/NA10.0254 8270E ☼Benzo(b)fluoranthene 0.00500 mg/Kg Total/NA10.0481 8270E ☼Benzo(g,h,i)perylene 0.00500 mg/Kg Total/NA10.0151 8270E ☼Benzo(k)fluoranthene 0.00500 mg/Kg Total/NA10.0200 8270E ☼Chrysene 0.00500 mg/Kg Total/NA10.0863 8270E ☼Dibenz(a,h)anthracene 0.00500 mg/Kg Total/NA10.00565 8270E ☼Fluoranthene 0.00500 mg/Kg Total/NA10.328 8270E ☼Indeno(1,2,3-cd)pyrene 0.00500 mg/Kg Total/NA10.0117 8270E ☼Phenanthrene 0.00500 mg/Kg Total/NA10.359 8270E ☼Pyrene 0.00500 mg/Kg Total/NA10.209 8270E ☼Diesel Range Organics (DRO)8.72 mg/Kg Total/NA125.9 WI-DRO ☼Arsenic 0.970 mg/Kg Total/NA51.52 6020B ☼Barium 0.970 mg/Kg Total/NA523.1 6020B ☼Chromium 1.45 mg/Kg Total/NA515.7 6020B ☼Lead 2.42 mg/Kg Total/NA54.21 6020B Client Sample ID: EB-4 (4-6)Lab Sample ID: 310-303009-7 ☼Diesel Range Organics (DRO) RL 4.52 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA17.25 WI-DRO ☼Arsenic 0.926 mg/Kg Total/NA52.34 6020B ☼Barium 0.926 mg/Kg Total/NA51226020B ☼Chromium 1.39 mg/Kg Total/NA512.0 6020B ☼Lead 2.31 mg/Kg Total/NA53.60 6020B Client Sample ID: EB-4 (8-10)Lab Sample ID: 310-303009-8 ☼Benzo(a)anthracene RL 0.00499 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.00545 8270E ☼Benzo(a)pyrene 0.00499 mg/Kg Total/NA10.00759 8270E ☼Benzo(b)fluoranthene 0.00499 mg/Kg Total/NA10.0171 8270E ☼Benzo(g,h,i)perylene 0.00499 mg/Kg Total/NA10.0313 8270E ☼Chrysene 0.00499 mg/Kg Total/NA10.0384 8270E ☼Dibenz(a,h)anthracene 0.00499 mg/Kg Total/NA10.00711 8270E ☼Pyrene 0.00499 mg/Kg Total/NA10.0208 8270E ☼Diesel Range Organics (DRO)36.0 mg/Kg Total/NA196.7 WI-DRO ☼Arsenic 0.943 mg/Kg Total/NA52.14 6020B Eurofins Cedar Falls This Detection Summary does not include radiochemical test results. Page 8 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-4 (8-10) (Continued)Lab Sample ID: 310-303009-8 ☼Barium RL 0.943 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA535.4 6020B ☼Chromium 1.41 mg/Kg Total/NA511.0 6020B ☼Lead 2.36 mg/Kg Total/NA53.12 6020B Client Sample ID: EB-5 (4-6)Lab Sample ID: 310-303009-9 ☼2-Methylnaphthalene RL 0.00502 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.0119 8270E ☼Acenaphthylene 0.00502 mg/Kg Total/NA10.0243 8270E ☼Anthracene 0.00502 mg/Kg Total/NA10.0164 8270E ☼Benzo(a)anthracene 0.00502 mg/Kg Total/NA10.0634 8270E ☼Benzo(a)pyrene 0.00502 mg/Kg Total/NA10.0787 8270E ☼Benzo(b)fluoranthene 0.00502 mg/Kg Total/NA10.111 8270E ☼Benzo(g,h,i)perylene 0.00502 mg/Kg Total/NA10.138 8270E ☼Benzo(k)fluoranthene 0.00502 mg/Kg Total/NA10.0343 8270E ☼Chrysene 0.00502 mg/Kg Total/NA10.108 8270E ☼Dibenz(a,h)anthracene 0.00502 mg/Kg Total/NA10.0335 8270E ☼Fluoranthene 0.00502 mg/Kg Total/NA10.157 8270E ☼Indeno(1,2,3-cd)pyrene 0.00502 mg/Kg Total/NA10.0739 8270E ☼Naphthalene 0.00502 mg/Kg Total/NA10.0166 8270E ☼Phenanthrene 0.00502 mg/Kg Total/NA10.0716 8270E ☼Pyrene 0.00502 mg/Kg Total/NA10.155 8270E ☼Diesel Range Organics (DRO)30.0 mg/Kg Total/NA189.5 WI-DRO ☼Arsenic 0.930 mg/Kg Total/NA52.04 6020B ☼Barium 0.930 mg/Kg Total/NA552.1 6020B ☼Chromium 1.40 mg/Kg Total/NA513.8 6020B ☼Lead 2.33 mg/Kg Total/NA534.9 6020B ☼Mercury 0.174 mg/Kg Total/NA100.454 7471B Client Sample ID: EB-5 (10-12)Lab Sample ID: 310-303009-10 ☼2-Methylnaphthalene RL 0.00550 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.00890 8270E ☼Benzo(b)fluoranthene 0.00550 mg/Kg Total/NA10.00885 8270E ☼Fluorene 0.00550 mg/Kg Total/NA10.00765 8270E ☼Naphthalene 0.00550 mg/Kg Total/NA10.00615 8270E ☼Arsenic 1.10 mg/Kg Total/NA53.47 6020B ☼Barium 1.10 mg/Kg Total/NA573.0 6020B ☼Chromium 1.66 mg/Kg Total/NA512.2 6020B ☼Lead 2.76 mg/Kg Total/NA55.67 6020B Client Sample ID: EB-6 (2-4)Lab Sample ID: 310-303009-11 ☼2-Methylnaphthalene RL 0.00509 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.0160 8270E ☼Acenaphthylene 0.00509 mg/Kg Total/NA10.00933 8270E ☼Anthracene 0.00509 mg/Kg Total/NA10.00517 8270E ☼Benzo(a)anthracene 0.00509 mg/Kg Total/NA10.0214 8270E ☼Benzo(a)pyrene 0.00509 mg/Kg Total/NA10.0264 8270E ☼Benzo(b)fluoranthene 0.00509 mg/Kg Total/NA10.0398 8270E ☼Benzo(g,h,i)perylene 0.00509 mg/Kg Total/NA10.0191 8270E ☼Benzo(k)fluoranthene 0.00509 mg/Kg Total/NA10.0129 8270E Eurofins Cedar Falls This Detection Summary does not include radiochemical test results. Page 9 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-6 (2-4) (Continued)Lab Sample ID: 310-303009-11 ☼Chrysene RL 0.00509 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.0272 8270E ☼Fluoranthene 0.00509 mg/Kg Total/NA10.0467 8270E ☼Indeno(1,2,3-cd)pyrene 0.00509 mg/Kg Total/NA10.0140 8270E ☼Naphthalene 0.00509 mg/Kg Total/NA10.00534 8270E ☼Phenanthrene 0.00509 mg/Kg Total/NA10.0154 8270E ☼Pyrene 0.00509 mg/Kg Total/NA10.0438 8270E ☼Arsenic 1.04 mg/Kg Total/NA51.64 6020B ☼Barium 1.04 mg/Kg Total/NA545.6 6020B ☼Chromium 1.55 mg/Kg Total/NA515.6 6020B ☼Lead 2.59 mg/Kg Total/NA519.1 6020B Client Sample ID: EB-6 (8-10)Lab Sample ID: 310-303009-12 ☼Benzo(a)anthracene RL 0.00493 mg/Kg MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10.00894 8270E ☼Benzo(a)pyrene 0.00493 mg/Kg Total/NA10.0175 8270E ☼Benzo(b)fluoranthene 0.00493 mg/Kg Total/NA10.0229 8270E ☼Benzo(g,h,i)perylene 0.00493 mg/Kg Total/NA10.0279 8270E ☼Chrysene 0.00493 mg/Kg Total/NA10.0496 8270E ☼Dibenz(a,h)anthracene 0.00493 mg/Kg Total/NA10.00882 8270E ☼Fluoranthene 0.00493 mg/Kg Total/NA10.0100 8270E ☼Indeno(1,2,3-cd)pyrene 0.00493 mg/Kg Total/NA10.0112 8270E ☼Phenanthrene 0.00493 mg/Kg Total/NA10.00574 8270E ☼Pyrene 0.00493 mg/Kg Total/NA10.0280 8270E ☼Diesel Range Organics (DRO)40.7 mg/Kg Total/NA1133WI-DRO ☼Arsenic 0.922 mg/Kg Total/NA51.47 6020B ☼Barium 0.922 mg/Kg Total/NA536.5 6020B ☼Chromium 1.38 mg/Kg Total/NA516.2 6020B ☼Lead 2.30 mg/Kg Total/NA54.33 6020B Client Sample ID: Trip Blank - Soil Lab Sample ID: 310-303009-13 No Detections. Client Sample ID: EB-1 Lab Sample ID: 310-303009-14 Arsenic RL 2.00 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Dissolved12.34 6020B Barium 2.00 ug/L Dissolved11266020B Client Sample ID: EB-3 Lab Sample ID: 310-303009-15 Arsenic RL 2.00 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Dissolved12.57 6020B Barium 2.00 ug/L Dissolved11266020B Client Sample ID: Trip Blank - GW Lab Sample ID: 310-303009-16 No Detections. Eurofins Cedar Falls This Detection Summary does not include radiochemical test results. Page 10 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-1Client Sample ID: EB-1 (2-4) Matrix: SolidDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.646 0.646 mg/Kg ☼04/02/25 07:00 04/03/25 15:40 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Allyl chloride 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Benzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Bromobenzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Bromochloromethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Bromodichloromethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Bromoform 0.646 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.646Bromomethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Butylbenzene, n- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Butylbenzene, sec- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Butylbenzene, tert- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Carbon tetrachloride 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Chlorobenzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Chloroethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Chloroform 0.323 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.323Chloromethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1292-Chlorotoluene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1294-Chlorotoluene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dibromo-3-chloropropane, 1,2- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dibromochloromethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dibromoethane, 1,2- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dibromomethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichlorobenzene, 1,2- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichlorobenzene, 1,3- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichlorobenzene, 1,4- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichlorodifluoromethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloroethane, 1,1- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloroethane, 1,2- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloroethylene, 1,1- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloroethylene, cis-1,2- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloroethylene, trans-1,2 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichlorofluoromethane 0.323 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.323Dichloromethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloropropane, 1,2- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloropropane, 1,3- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloropropane, 2,2- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloropropene, 1,1- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloropropene, cis 1,3- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Dichloropropene, trans 1,3- 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Ethylbenzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Ethyl ether 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Hexachlorobutadiene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Isopropylbenzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129p-Isopropyltoluene 0.969 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.969Methyl ethyl ketone (MEK) 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1294-Methyl-2-pentanone (MIBK) 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Methyl tert-butyl ether 0.323 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.323Naphthalene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Propylbenzene, n- Eurofins Cedar Falls Page 11 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-1Client Sample ID: EB-1 (2-4) Matrix: SolidDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.129 0.129 mg/Kg ☼04/02/25 07:00 04/03/25 15:40 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,1,1,2-Tetrachloroethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,1,2,2-Tetrachloroethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Tetrachloroethene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Tetrahydrofuran 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Toluene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,2,3-Trichlorobenzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,2,4-Trichlorobenzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,1,1-Trichloroethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,1,2-Trichloroethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Trichloroethene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Trichlorofluoromethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,2,3-Trichloropropane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,1,2-Trichlorotrifluoroethane 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,2,4-Trimethylbenzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.1291,3,5-Trimethylbenzene 0.129 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.129Vinyl chloride 0.194 mg/Kg 04/02/25 07:00 04/03/25 15:40 1☼<0.194Xylenes, Total 4-Bromofluorobenzene (Surr)97 80 -120 04/02/25 07:00 04/03/25 15:40 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)97 04/02/25 07:00 04/03/25 15:40 180-120 Toluene-d8 (Surr)100 04/02/25 07:00 04/03/25 15:40 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.00544 0.00544 mg/Kg ☼04/02/25 10:08 04/03/25 16:58 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.00744Acenaphthene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.0829Acenaphthylene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.0295Anthracene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.151Benzo(a)anthracene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.180Benzo(a)pyrene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.259Benzo(b)fluoranthene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.158Benzo(g,h,i)perylene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.0849Benzo(k)fluoranthene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.158Chrysene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.0364Dibenz(a,h)anthracene 0.00544 mg/Kg 04/02/25 10:08 04/04/25 12:57 1☼0.162Fluoranthene 0.00544 mg/Kg 04/02/25 10:08 04/04/25 12:57 1☼<0.00544Fluorene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.116Indeno(1,2,3-cd)pyrene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.00939Naphthalene 0.00544 mg/Kg 04/02/25 10:08 04/03/25 16:58 1☼0.0249Phenanthrene 0.00544 mg/Kg 04/02/25 10:08 04/04/25 12:57 1☼0.174Pyrene 2-Fluorobiphenyl (Surr)83 28 -116 04/02/25 10:08 04/03/25 16:58 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)99 04/02/25 10:08 04/03/25 16:58 115-131 Terphenyl-d14 (Surr)89 04/02/25 10:08 04/03/25 16:58 124-132 Eurofins Cedar Falls Page 12 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-1Client Sample ID: EB-1 (2-4) Matrix: SolidDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <11.7 11.7 mg/Kg ☼03/31/25 10:43 04/01/25 07:19 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)107 80 -120 03/31/25 10:43 04/01/25 07:19 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL 7.44 3.97 mg/Kg ☼04/02/25 07:20 04/07/25 21:41 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 2.09 0.919 mg/Kg ☼04/02/25 12:00 04/03/25 14:50 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 0.919 mg/Kg 04/02/25 12:00 04/03/25 14:50 5☼53.6Barium 0.460 mg/Kg 04/02/25 12:00 04/03/25 14:50 5☼<0.460Cadmium 1.38 mg/Kg 04/02/25 12:00 04/03/25 14:50 5☼9.00Chromium 2.30 mg/Kg 04/02/25 12:00 04/03/25 14:50 5☼19.6Lead 1.38 mg/Kg 04/02/25 12:00 04/03/25 14:50 5☼<1.38Selenium 0.460 mg/Kg 04/02/25 12:00 04/03/25 14:50 5☼<0.460Silver Method: SW846 7471B - Mercury (CVAA) RL MDL 0.0289 0.0177 mg/Kg ☼04/01/25 12:15 04/01/25 15:06 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 12.8 0.1 %03/31/25 11:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:07 187.2Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 13 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-2Client Sample ID: EB-1 (10-12) Matrix: SolidDate Collected: 03/27/25 15:05 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.552 0.552 mg/Kg ☼04/07/25 07:10 04/07/25 16:26 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Allyl chloride 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Benzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Bromobenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Bromochloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Bromodichloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Bromoform 0.552 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.552Bromomethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Butylbenzene, n- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Butylbenzene, sec- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Butylbenzene, tert- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Carbon tetrachloride 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Chlorobenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Chloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Chloroform 0.276 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.276Chloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1102-Chlorotoluene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1104-Chlorotoluene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dibromo-3-chloropropane, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dibromochloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dibromoethane, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dibromomethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichlorobenzene, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichlorobenzene, 1,3- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichlorobenzene, 1,4- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichlorodifluoromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloroethane, 1,1- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloroethane, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloroethylene, 1,1- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloroethylene, cis-1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloroethylene, trans-1,2 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichlorofluoromethane 0.276 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.276Dichloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloropropane, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloropropane, 1,3- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloropropane, 2,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloropropene, 1,1- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloropropene, cis 1,3- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Dichloropropene, trans 1,3- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Ethylbenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Ethyl ether 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Hexachlorobutadiene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Isopropylbenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110p-Isopropyltoluene 0.828 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.828Methyl ethyl ketone (MEK) 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1104-Methyl-2-pentanone (MIBK) 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Methyl tert-butyl ether 0.276 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.276Naphthalene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Propylbenzene, n- Eurofins Cedar Falls Page 14 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-2Client Sample ID: EB-1 (10-12) Matrix: SolidDate Collected: 03/27/25 15:05 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.110 0.110 mg/Kg ☼04/07/25 07:10 04/07/25 16:26 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,1,1,2-Tetrachloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,1,2,2-Tetrachloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Tetrachloroethene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Tetrahydrofuran 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Toluene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,2,3-Trichlorobenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,2,4-Trichlorobenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,1,1-Trichloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,1,2-Trichloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Trichloroethene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Trichlorofluoromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,2,3-Trichloropropane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,1,2-Trichlorotrifluoroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,2,4-Trimethylbenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.1101,3,5-Trimethylbenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.110Vinyl chloride 0.166 mg/Kg 04/07/25 07:10 04/07/25 16:26 1☼<0.166Xylenes, Total 4-Bromofluorobenzene (Surr)97 80 -120 04/07/25 07:10 04/07/25 16:26 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)93 04/07/25 07:10 04/07/25 16:26 180-120 Toluene-d8 (Surr)101 04/07/25 07:10 04/07/25 16:26 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.00507 0.00507 mg/Kg ☼04/02/25 10:08 04/03/25 17:22 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Acenaphthene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Acenaphthylene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Anthracene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Benzo(a)anthracene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Benzo(a)pyrene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Benzo(b)fluoranthene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Benzo(g,h,i)perylene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Benzo(k)fluoranthene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Chrysene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Dibenz(a,h)anthracene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Fluoranthene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Fluorene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Indeno(1,2,3-cd)pyrene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Naphthalene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Phenanthrene 0.00507 mg/Kg 04/02/25 10:08 04/03/25 17:22 1☼<0.00507Pyrene 2-Fluorobiphenyl (Surr)75 28 -116 04/02/25 10:08 04/03/25 17:22 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)91 04/02/25 10:08 04/03/25 17:22 115-131 Terphenyl-d14 (Surr)84 04/02/25 10:08 04/03/25 17:22 124-132 Eurofins Cedar Falls Page 15 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-2Client Sample ID: EB-1 (10-12) Matrix: SolidDate Collected: 03/27/25 15:05 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.4 10.4 mg/Kg ☼03/31/25 10:43 04/01/25 07:45 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)109 80 -120 03/31/25 10:43 04/01/25 07:45 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL <3.97 3.97 mg/Kg ☼04/02/25 07:20 04/07/25 20:24 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 2.21 0.996 mg/Kg ☼04/02/25 12:00 04/03/25 14:52 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 0.996 mg/Kg 04/02/25 12:00 04/03/25 14:52 5☼60.5Barium 0.498 mg/Kg 04/02/25 12:00 04/03/25 14:52 5☼<0.498Cadmium 1.49 mg/Kg 04/02/25 12:00 04/03/25 14:52 5☼13.2Chromium 2.49 mg/Kg 04/02/25 12:00 04/03/25 14:52 5☼3.19Lead 1.49 mg/Kg 04/02/25 12:00 04/03/25 14:52 5☼<1.49Selenium 0.498 mg/Kg 04/02/25 12:00 04/03/25 14:52 5☼<0.498Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0170 0.0170 mg/Kg ☼04/01/25 12:15 04/01/25 15:08 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 5.9 0.1 %03/31/25 11:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:07 194.1Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 16 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-3Client Sample ID: EB-2 (2-4) Matrix: SolidDate Collected: 03/27/25 15:10 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.552 0.552 mg/Kg ☼04/07/25 07:10 04/07/25 16:49 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Allyl chloride 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Benzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Bromobenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Bromochloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Bromodichloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Bromoform 0.552 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.552Bromomethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Butylbenzene, n- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Butylbenzene, sec- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Butylbenzene, tert- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Carbon tetrachloride 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Chlorobenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Chloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Chloroform 0.276 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.276Chloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1102-Chlorotoluene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1104-Chlorotoluene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dibromo-3-chloropropane, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dibromochloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dibromoethane, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dibromomethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichlorobenzene, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichlorobenzene, 1,3- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichlorobenzene, 1,4- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichlorodifluoromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloroethane, 1,1- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloroethane, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloroethylene, 1,1- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloroethylene, cis-1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloroethylene, trans-1,2 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichlorofluoromethane 0.276 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.276Dichloromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloropropane, 1,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloropropane, 1,3- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloropropane, 2,2- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloropropene, 1,1- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloropropene, cis 1,3- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Dichloropropene, trans 1,3- 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Ethylbenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Ethyl ether 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Hexachlorobutadiene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Isopropylbenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110p-Isopropyltoluene 0.828 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.828Methyl ethyl ketone (MEK) 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1104-Methyl-2-pentanone (MIBK) 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Methyl tert-butyl ether 0.276 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.276Naphthalene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Propylbenzene, n- Eurofins Cedar Falls Page 17 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-3Client Sample ID: EB-2 (2-4) Matrix: SolidDate Collected: 03/27/25 15:10 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.110 0.110 mg/Kg ☼04/07/25 07:10 04/07/25 16:49 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,1,1,2-Tetrachloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,1,2,2-Tetrachloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Tetrachloroethene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Tetrahydrofuran 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Toluene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,2,3-Trichlorobenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,2,4-Trichlorobenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,1,1-Trichloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,1,2-Trichloroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Trichloroethene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Trichlorofluoromethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,2,3-Trichloropropane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,1,2-Trichlorotrifluoroethane 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,2,4-Trimethylbenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.1101,3,5-Trimethylbenzene 0.110 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.110Vinyl chloride 0.166 mg/Kg 04/07/25 07:10 04/07/25 16:49 1☼<0.166Xylenes, Total 4-Bromofluorobenzene (Surr)100 80 -120 04/07/25 07:10 04/07/25 16:49 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)94 04/07/25 07:10 04/07/25 16:49 180-120 Toluene-d8 (Surr)102 04/07/25 07:10 04/07/25 16:49 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.00496 0.00496 mg/Kg ☼04/02/25 10:08 04/03/25 17:46 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Acenaphthene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Acenaphthylene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Anthracene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Benzo(a)anthracene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Benzo(a)pyrene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Benzo(b)fluoranthene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Benzo(g,h,i)perylene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Benzo(k)fluoranthene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Chrysene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Dibenz(a,h)anthracene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Fluoranthene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Fluorene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Indeno(1,2,3-cd)pyrene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Naphthalene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Phenanthrene 0.00496 mg/Kg 04/02/25 10:08 04/03/25 17:46 1☼<0.00496Pyrene 2-Fluorobiphenyl (Surr)99 28 -116 04/02/25 10:08 04/03/25 17:46 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)109 04/02/25 10:08 04/03/25 17:46 115-131 Terphenyl-d14 (Surr)104 04/02/25 10:08 04/03/25 17:46 124-132 Eurofins Cedar Falls Page 18 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-3Client Sample ID: EB-2 (2-4) Matrix: SolidDate Collected: 03/27/25 15:10 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.5 10.5 mg/Kg ☼03/31/25 10:48 04/01/25 15:31 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)104 80 -120 03/31/25 10:48 04/01/25 15:31 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL <3.59 3.59 mg/Kg ☼04/02/25 07:20 04/07/25 20:37 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 2.02 1.05 mg/Kg ☼04/02/25 12:00 04/03/25 14:54 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 1.05 mg/Kg 04/02/25 12:00 04/03/25 14:54 5☼16.8Barium 0.523 mg/Kg 04/02/25 12:00 04/03/25 14:54 5☼<0.523Cadmium 1.57 mg/Kg 04/02/25 12:00 04/03/25 14:54 5☼12.0Chromium 2.62 mg/Kg 04/02/25 12:00 04/03/25 14:54 5☼3.04Lead 1.57 mg/Kg 04/02/25 12:00 04/03/25 14:54 5☼<1.57Selenium 0.523 mg/Kg 04/02/25 12:00 04/03/25 14:54 5☼<0.523Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0187 0.0187 mg/Kg ☼04/01/25 12:15 04/01/25 15:15 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 5.3 0.1 %03/31/25 11:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:07 194.7Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 19 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-4Client Sample ID: EB-2 (10-12) Matrix: SolidDate Collected: 03/27/25 15:15 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.676 0.676 mg/Kg ☼04/07/25 07:10 04/07/25 17:12 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Allyl chloride 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Benzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Bromobenzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Bromochloromethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Bromodichloromethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Bromoform 0.676 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.676Bromomethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Butylbenzene, n- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Butylbenzene, sec- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Butylbenzene, tert- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Carbon tetrachloride 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Chlorobenzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Chloroethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Chloroform 0.338 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.338Chloromethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1352-Chlorotoluene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1354-Chlorotoluene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dibromo-3-chloropropane, 1,2- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dibromochloromethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dibromoethane, 1,2- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dibromomethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichlorobenzene, 1,2- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichlorobenzene, 1,3- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichlorobenzene, 1,4- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichlorodifluoromethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloroethane, 1,1- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloroethane, 1,2- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloroethylene, 1,1- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloroethylene, cis-1,2- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloroethylene, trans-1,2 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichlorofluoromethane 0.338 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.338Dichloromethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloropropane, 1,2- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloropropane, 1,3- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloropropane, 2,2- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloropropene, 1,1- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloropropene, cis 1,3- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Dichloropropene, trans 1,3- 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Ethylbenzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Ethyl ether 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Hexachlorobutadiene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Isopropylbenzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135p-Isopropyltoluene 1.01 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<1.01Methyl ethyl ketone (MEK) 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1354-Methyl-2-pentanone (MIBK) 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Methyl tert-butyl ether 0.338 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.338Naphthalene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Propylbenzene, n- Eurofins Cedar Falls Page 20 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-4Client Sample ID: EB-2 (10-12) Matrix: SolidDate Collected: 03/27/25 15:15 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.135 0.135 mg/Kg ☼04/07/25 07:10 04/07/25 17:12 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,1,1,2-Tetrachloroethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,1,2,2-Tetrachloroethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Tetrachloroethene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Tetrahydrofuran 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Toluene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,2,3-Trichlorobenzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,2,4-Trichlorobenzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,1,1-Trichloroethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,1,2-Trichloroethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Trichloroethene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Trichlorofluoromethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,2,3-Trichloropropane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,1,2-Trichlorotrifluoroethane 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,2,4-Trimethylbenzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.1351,3,5-Trimethylbenzene 0.135 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.135Vinyl chloride 0.203 mg/Kg 04/07/25 07:10 04/07/25 17:12 1☼<0.203Xylenes, Total 4-Bromofluorobenzene (Surr)97 80 -120 04/07/25 07:10 04/07/25 17:12 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)102 04/07/25 07:10 04/07/25 17:12 180-120 Toluene-d8 (Surr)101 04/07/25 07:10 04/07/25 17:12 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.00576 0.00576 mg/Kg ☼04/02/25 10:08 04/03/25 18:11 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Acenaphthene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Acenaphthylene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Anthracene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Benzo(a)anthracene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Benzo(a)pyrene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Benzo(b)fluoranthene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Benzo(g,h,i)perylene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Benzo(k)fluoranthene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Chrysene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Dibenz(a,h)anthracene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Fluoranthene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Fluorene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Indeno(1,2,3-cd)pyrene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Naphthalene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Phenanthrene 0.00576 mg/Kg 04/02/25 10:08 04/03/25 18:11 1☼<0.00576Pyrene 2-Fluorobiphenyl (Surr)68 28 -116 04/02/25 10:08 04/03/25 18:11 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)14 S1-04/02/25 10:08 04/03/25 18:11 115-131 Terphenyl-d14 (Surr)80 04/02/25 10:08 04/03/25 18:11 124-132 Eurofins Cedar Falls Page 21 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-4Client Sample ID: EB-2 (10-12) Matrix: SolidDate Collected: 03/27/25 15:15 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <11.7 11.7 mg/Kg ☼03/31/25 10:48 04/01/25 15:57 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)116 80 -120 03/31/25 10:48 04/01/25 15:57 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL <4.38 4.38 mg/Kg ☼04/02/25 07:20 04/07/25 20:50 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 3.93 1.14 mg/Kg ☼04/02/25 12:00 04/03/25 14:57 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 1.14 mg/Kg 04/02/25 12:00 04/03/25 14:57 5☼70.6Barium 0.568 mg/Kg 04/02/25 12:00 04/03/25 14:57 5☼<0.568Cadmium 1.70 mg/Kg 04/02/25 12:00 04/03/25 14:57 5☼12.5Chromium 2.84 mg/Kg 04/02/25 12:00 04/03/25 14:57 5☼5.56Lead 1.70 mg/Kg 04/02/25 12:00 04/03/25 14:57 5☼<1.70Selenium 0.568 mg/Kg 04/02/25 12:00 04/03/25 14:57 5☼<0.568Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0208 0.0208 mg/Kg ☼04/01/25 12:15 04/01/25 15:17 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 15.4 0.1 %03/31/25 11:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:07 184.6Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 22 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-5Client Sample ID: EB-3 (4-6) Matrix: SolidDate Collected: 03/27/25 15:20 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.547 0.547 mg/Kg ☼04/07/25 07:10 04/07/25 17:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Allyl chloride 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Benzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Bromobenzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Bromochloromethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Bromodichloromethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Bromoform 0.547 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.547Bromomethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Butylbenzene, n- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Butylbenzene, sec- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Butylbenzene, tert- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Carbon tetrachloride 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Chlorobenzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Chloroethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Chloroform 0.274 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.274Chloromethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1092-Chlorotoluene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1094-Chlorotoluene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dibromo-3-chloropropane, 1,2- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dibromochloromethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dibromoethane, 1,2- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dibromomethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichlorobenzene, 1,2- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichlorobenzene, 1,3- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichlorobenzene, 1,4- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichlorodifluoromethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloroethane, 1,1- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloroethane, 1,2- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloroethylene, 1,1- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloroethylene, cis-1,2- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloroethylene, trans-1,2 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichlorofluoromethane 0.274 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.274Dichloromethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloropropane, 1,2- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloropropane, 1,3- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloropropane, 2,2- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloropropene, 1,1- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloropropene, cis 1,3- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Dichloropropene, trans 1,3- 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Ethylbenzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Ethyl ether 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Hexachlorobutadiene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Isopropylbenzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109p-Isopropyltoluene 0.821 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.821Methyl ethyl ketone (MEK) 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1094-Methyl-2-pentanone (MIBK) 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Methyl tert-butyl ether 0.274 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.274Naphthalene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Propylbenzene, n- Eurofins Cedar Falls Page 23 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-5Client Sample ID: EB-3 (4-6) Matrix: SolidDate Collected: 03/27/25 15:20 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.109 0.109 mg/Kg ☼04/07/25 07:10 04/07/25 17:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,1,1,2-Tetrachloroethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,1,2,2-Tetrachloroethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Tetrachloroethene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Tetrahydrofuran 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Toluene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,2,3-Trichlorobenzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,2,4-Trichlorobenzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,1,1-Trichloroethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,1,2-Trichloroethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Trichloroethene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Trichlorofluoromethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,2,3-Trichloropropane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,1,2-Trichlorotrifluoroethane 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,2,4-Trimethylbenzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.1091,3,5-Trimethylbenzene 0.109 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.109Vinyl chloride 0.164 mg/Kg 04/07/25 07:10 04/07/25 17:35 1☼<0.164Xylenes, Total 4-Bromofluorobenzene (Surr)96 80 -120 04/07/25 07:10 04/07/25 17:35 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)94 04/07/25 07:10 04/07/25 17:35 180-120 Toluene-d8 (Surr)97 04/07/25 07:10 04/07/25 17:35 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL 0.0124 0.00505 mg/Kg ☼04/02/25 10:08 04/03/25 18:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼<0.00505Acenaphthene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼<0.00505Acenaphthylene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼<0.00505Anthracene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼0.00678Benzo(a)anthracene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼0.00729Benzo(a)pyrene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼0.0112Benzo(b)fluoranthene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼0.00571Benzo(g,h,i)perylene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼<0.00505Benzo(k)fluoranthene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼0.00826Chrysene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼<0.00505Dibenz(a,h)anthracene 0.00505 mg/Kg 04/02/25 10:08 04/04/25 13:21 1☼0.0164Fluoranthene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼<0.00505Fluorene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼<0.00505Indeno(1,2,3-cd)pyrene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼<0.00505Naphthalene 0.00505 mg/Kg 04/02/25 10:08 04/03/25 18:35 1☼0.0129Phenanthrene 0.00505 mg/Kg 04/02/25 10:08 04/04/25 13:21 1☼0.0154Pyrene 2-Fluorobiphenyl (Surr)77 28 -116 04/02/25 10:08 04/03/25 18:35 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)89 04/02/25 10:08 04/03/25 18:35 115-131 Terphenyl-d14 (Surr)90 04/02/25 10:08 04/03/25 18:35 124-132 Eurofins Cedar Falls Page 24 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-5Client Sample ID: EB-3 (4-6) Matrix: SolidDate Collected: 03/27/25 15:20 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.4 10.4 mg/Kg ☼03/31/25 10:48 04/01/25 16:23 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)115 80 -120 03/31/25 10:48 04/01/25 16:23 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL <3.41 3.41 mg/Kg ☼04/02/25 07:20 04/07/25 21:28 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 2.57 0.940 mg/Kg ☼04/02/25 12:00 04/03/25 15:01 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 0.940 mg/Kg 04/02/25 12:00 04/03/25 15:01 5☼29.3Barium 0.470 mg/Kg 04/02/25 12:00 04/03/25 15:01 5☼<0.470Cadmium 1.41 mg/Kg 04/02/25 12:00 04/03/25 15:01 5☼8.82Chromium 2.35 mg/Kg 04/02/25 12:00 04/03/25 15:01 5☼7.17Lead 1.41 mg/Kg 04/02/25 12:00 04/03/25 15:01 5☼<1.41Selenium 0.470 mg/Kg 04/02/25 12:00 04/03/25 15:01 5☼<0.470Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0159 0.0159 mg/Kg ☼04/01/25 12:15 04/01/25 15:19 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 5.4 0.1 %03/31/25 11:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:07 194.6Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 25 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-6Client Sample ID: EB-3 (12-14) Matrix: SolidDate Collected: 03/27/25 15:25 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.554 0.554 mg/Kg ☼04/07/25 07:10 04/07/25 17:58 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Allyl chloride 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Benzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Bromobenzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Bromochloromethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Bromodichloromethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Bromoform 0.554 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.554Bromomethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Butylbenzene, n- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Butylbenzene, sec- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Butylbenzene, tert- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Carbon tetrachloride 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Chlorobenzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Chloroethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Chloroform 0.277 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.277Chloromethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1112-Chlorotoluene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1114-Chlorotoluene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dibromo-3-chloropropane, 1,2- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dibromochloromethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dibromoethane, 1,2- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dibromomethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichlorobenzene, 1,2- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichlorobenzene, 1,3- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichlorobenzene, 1,4- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichlorodifluoromethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloroethane, 1,1- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloroethane, 1,2- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloroethylene, 1,1- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloroethylene, cis-1,2- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloroethylene, trans-1,2 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichlorofluoromethane 0.277 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.277Dichloromethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloropropane, 1,2- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloropropane, 1,3- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloropropane, 2,2- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloropropene, 1,1- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloropropene, cis 1,3- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Dichloropropene, trans 1,3- 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Ethylbenzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Ethyl ether 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Hexachlorobutadiene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Isopropylbenzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111p-Isopropyltoluene 0.831 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.831Methyl ethyl ketone (MEK) 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1114-Methyl-2-pentanone (MIBK) 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Methyl tert-butyl ether 0.277 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.277Naphthalene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Propylbenzene, n- Eurofins Cedar Falls Page 26 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-6Client Sample ID: EB-3 (12-14) Matrix: SolidDate Collected: 03/27/25 15:25 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.111 0.111 mg/Kg ☼04/07/25 07:10 04/07/25 17:58 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,1,1,2-Tetrachloroethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,1,2,2-Tetrachloroethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Tetrachloroethene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Tetrahydrofuran 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Toluene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,2,3-Trichlorobenzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,2,4-Trichlorobenzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,1,1-Trichloroethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,1,2-Trichloroethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Trichloroethene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Trichlorofluoromethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,2,3-Trichloropropane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,1,2-Trichlorotrifluoroethane 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,2,4-Trimethylbenzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.1111,3,5-Trimethylbenzene 0.111 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.111Vinyl chloride 0.166 mg/Kg 04/07/25 07:10 04/07/25 17:58 1☼<0.166Xylenes, Total 4-Bromofluorobenzene (Surr)98 80 -120 04/07/25 07:10 04/07/25 17:58 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)97 04/07/25 07:10 04/07/25 17:58 180-120 Toluene-d8 (Surr)98 04/07/25 07:10 04/07/25 17:58 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.00500 0.00500 mg/Kg ☼04/02/25 10:08 04/03/25 18:59 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼<0.00500Acenaphthene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼<0.00500Acenaphthylene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.0373Anthracene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.0600Benzo(a)anthracene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.0254Benzo(a)pyrene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.0481Benzo(b)fluoranthene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.0151Benzo(g,h,i)perylene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.0200Benzo(k)fluoranthene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.0863Chrysene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.00565Dibenz(a,h)anthracene 0.00500 mg/Kg 04/02/25 10:08 04/04/25 13:45 1☼0.328Fluoranthene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼<0.00500Fluorene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.0117Indeno(1,2,3-cd)pyrene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼<0.00500Naphthalene 0.00500 mg/Kg 04/02/25 10:08 04/03/25 18:59 1☼0.359Phenanthrene 0.00500 mg/Kg 04/02/25 10:08 04/04/25 13:45 1☼0.209Pyrene 2-Fluorobiphenyl (Surr)91 28 -116 04/02/25 10:08 04/03/25 18:59 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)88 04/02/25 10:08 04/03/25 18:59 115-131 Terphenyl-d14 (Surr)94 04/02/25 10:08 04/03/25 18:59 124-132 Eurofins Cedar Falls Page 27 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-6Client Sample ID: EB-3 (12-14) Matrix: SolidDate Collected: 03/27/25 15:25 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.5 10.5 mg/Kg ☼03/31/25 10:48 04/01/25 16:49 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)106 80 -120 03/31/25 10:48 04/01/25 16:49 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL 25.9 8.72 mg/Kg ☼04/02/25 07:20 04/07/25 22:44 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 1.52 0.970 mg/Kg ☼04/02/25 12:00 04/03/25 15:04 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 0.970 mg/Kg 04/02/25 12:00 04/03/25 15:04 5☼23.1Barium 0.485 mg/Kg 04/02/25 12:00 04/03/25 15:04 5☼<0.485Cadmium 1.45 mg/Kg 04/02/25 12:00 04/03/25 15:04 5☼15.7Chromium 2.42 mg/Kg 04/02/25 12:00 04/03/25 15:04 5☼4.21Lead 1.45 mg/Kg 04/02/25 12:00 04/03/25 15:04 5☼<1.45Selenium 0.485 mg/Kg 04/02/25 12:00 04/03/25 15:04 5☼<0.485Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0178 0.0178 mg/Kg ☼04/01/25 12:15 04/01/25 15:21 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 5.4 0.1 %03/31/25 11:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:07 194.6Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 28 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-7Client Sample ID: EB-4 (4-6) Matrix: SolidDate Collected: 03/27/25 15:30 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.528 0.528 mg/Kg ☼04/07/25 07:10 04/07/25 18:21 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Allyl chloride 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Benzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Bromobenzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Bromochloromethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Bromodichloromethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Bromoform 0.528 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.528Bromomethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Butylbenzene, n- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Butylbenzene, sec- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Butylbenzene, tert- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Carbon tetrachloride 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Chlorobenzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Chloroethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Chloroform 0.264 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.264Chloromethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1062-Chlorotoluene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1064-Chlorotoluene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dibromo-3-chloropropane, 1,2- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dibromochloromethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dibromoethane, 1,2- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dibromomethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichlorobenzene, 1,2- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichlorobenzene, 1,3- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichlorobenzene, 1,4- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichlorodifluoromethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloroethane, 1,1- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloroethane, 1,2- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloroethylene, 1,1- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloroethylene, cis-1,2- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloroethylene, trans-1,2 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichlorofluoromethane 0.264 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.264Dichloromethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloropropane, 1,2- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloropropane, 1,3- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloropropane, 2,2- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloropropene, 1,1- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloropropene, cis 1,3- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Dichloropropene, trans 1,3- 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Ethylbenzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Ethyl ether 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Hexachlorobutadiene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Isopropylbenzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106p-Isopropyltoluene 0.792 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.792Methyl ethyl ketone (MEK) 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1064-Methyl-2-pentanone (MIBK) 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Methyl tert-butyl ether 0.264 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.264Naphthalene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Propylbenzene, n- Eurofins Cedar Falls Page 29 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-7Client Sample ID: EB-4 (4-6) Matrix: SolidDate Collected: 03/27/25 15:30 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.106 0.106 mg/Kg ☼04/07/25 07:10 04/07/25 18:21 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,1,1,2-Tetrachloroethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,1,2,2-Tetrachloroethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Tetrachloroethene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Tetrahydrofuran 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Toluene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,2,3-Trichlorobenzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,2,4-Trichlorobenzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,1,1-Trichloroethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,1,2-Trichloroethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Trichloroethene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Trichlorofluoromethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,2,3-Trichloropropane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,1,2-Trichlorotrifluoroethane 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,2,4-Trimethylbenzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.1061,3,5-Trimethylbenzene 0.106 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.106Vinyl chloride 0.158 mg/Kg 04/07/25 07:10 04/07/25 18:21 1☼<0.158Xylenes, Total 4-Bromofluorobenzene (Surr)99 80 -120 04/07/25 07:10 04/07/25 18:21 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)93 04/07/25 07:10 04/07/25 18:21 180-120 Toluene-d8 (Surr)100 04/07/25 07:10 04/07/25 18:21 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.00490 0.00490 mg/Kg ☼04/02/25 10:08 04/03/25 19:24 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Acenaphthene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Acenaphthylene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Anthracene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Benzo(a)anthracene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Benzo(a)pyrene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Benzo(b)fluoranthene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Benzo(g,h,i)perylene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Benzo(k)fluoranthene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Chrysene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Dibenz(a,h)anthracene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Fluoranthene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Fluorene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Indeno(1,2,3-cd)pyrene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Naphthalene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Phenanthrene 0.00490 mg/Kg 04/02/25 10:08 04/03/25 19:24 1☼<0.00490Pyrene 2-Fluorobiphenyl (Surr)88 28 -116 04/02/25 10:08 04/03/25 19:24 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)107 04/02/25 10:08 04/03/25 19:24 115-131 Terphenyl-d14 (Surr)102 04/02/25 10:08 04/03/25 19:24 124-132 Eurofins Cedar Falls Page 30 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-7Client Sample ID: EB-4 (4-6) Matrix: SolidDate Collected: 03/27/25 15:30 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.1 10.1 mg/Kg ☼03/31/25 10:48 04/01/25 17:15 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)107 80 -120 03/31/25 10:48 04/01/25 17:15 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL 7.25 4.52 mg/Kg ☼04/02/25 07:20 04/07/25 21:15 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 2.34 0.926 mg/Kg ☼04/02/25 12:00 04/03/25 15:06 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 0.926 mg/Kg 04/02/25 12:00 04/03/25 15:06 5☼122Barium 0.463 mg/Kg 04/02/25 12:00 04/03/25 15:06 5☼<0.463Cadmium 1.39 mg/Kg 04/02/25 12:00 04/03/25 15:06 5☼12.0Chromium 2.31 mg/Kg 04/02/25 12:00 04/03/25 15:06 5☼3.60Lead 1.39 mg/Kg 04/02/25 12:00 04/03/25 15:06 5☼<1.39Selenium 0.463 mg/Kg 04/02/25 12:00 04/03/25 15:06 5☼<0.463Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0190 0.0190 mg/Kg ☼04/01/25 12:15 04/01/25 15:23 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 4.0 0.1 %03/31/25 11:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:07 196.0Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 31 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-8Client Sample ID: EB-4 (8-10) Matrix: SolidDate Collected: 03/27/25 15:35 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.540 0.540 mg/Kg ☼04/07/25 07:20 04/07/25 23:18 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Allyl chloride 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Benzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Bromobenzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Bromochloromethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Bromodichloromethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Bromoform 0.540 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.540Bromomethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Butylbenzene, n- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Butylbenzene, sec- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Butylbenzene, tert- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Carbon tetrachloride 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Chlorobenzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Chloroethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Chloroform 0.270 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.270Chloromethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1082-Chlorotoluene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1084-Chlorotoluene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dibromo-3-chloropropane, 1,2- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dibromochloromethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dibromoethane, 1,2- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dibromomethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichlorobenzene, 1,2- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichlorobenzene, 1,3- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichlorobenzene, 1,4- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichlorodifluoromethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloroethane, 1,1- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloroethane, 1,2- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloroethylene, 1,1- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloroethylene, cis-1,2- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloroethylene, trans-1,2 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichlorofluoromethane 0.270 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.270Dichloromethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloropropane, 1,2- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloropropane, 1,3- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloropropane, 2,2- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloropropene, 1,1- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloropropene, cis 1,3- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Dichloropropene, trans 1,3- 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Ethylbenzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Ethyl ether 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Hexachlorobutadiene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Isopropylbenzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108p-Isopropyltoluene 0.809 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.809Methyl ethyl ketone (MEK) 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1084-Methyl-2-pentanone (MIBK) 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Methyl tert-butyl ether 0.270 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.270Naphthalene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Propylbenzene, n- Eurofins Cedar Falls Page 32 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-8Client Sample ID: EB-4 (8-10) Matrix: SolidDate Collected: 03/27/25 15:35 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.108 0.108 mg/Kg ☼04/07/25 07:20 04/07/25 23:18 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,1,1,2-Tetrachloroethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,1,2,2-Tetrachloroethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Tetrachloroethene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Tetrahydrofuran 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Toluene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,2,3-Trichlorobenzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,2,4-Trichlorobenzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,1,1-Trichloroethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,1,2-Trichloroethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Trichloroethene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Trichlorofluoromethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,2,3-Trichloropropane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,1,2-Trichlorotrifluoroethane 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,2,4-Trimethylbenzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.1081,3,5-Trimethylbenzene 0.108 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.108Vinyl chloride 0.162 mg/Kg 04/07/25 07:20 04/07/25 23:18 1☼<0.162Xylenes, Total 4-Bromofluorobenzene (Surr)92 80 -120 04/07/25 07:20 04/07/25 23:18 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)92 04/07/25 07:20 04/07/25 23:18 180-120 Toluene-d8 (Surr)99 04/07/25 07:20 04/07/25 23:18 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.00499 0.00499 mg/Kg ☼04/02/25 10:08 04/03/25 19:48 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼<0.00499Acenaphthene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼<0.00499Acenaphthylene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼<0.00499Anthracene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼0.00545Benzo(a)anthracene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼0.00759Benzo(a)pyrene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼0.0171Benzo(b)fluoranthene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼0.0313Benzo(g,h,i)perylene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼<0.00499Benzo(k)fluoranthene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼0.0384Chrysene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼0.00711Dibenz(a,h)anthracene 0.00499 mg/Kg 04/02/25 10:08 04/04/25 14:10 1☼<0.00499Fluoranthene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼<0.00499Fluorene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼<0.00499Indeno(1,2,3-cd)pyrene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼<0.00499Naphthalene 0.00499 mg/Kg 04/02/25 10:08 04/03/25 19:48 1☼<0.00499Phenanthrene 0.00499 mg/Kg 04/02/25 10:08 04/04/25 14:10 1☼0.0208Pyrene 2-Fluorobiphenyl (Surr)72 28 -116 04/02/25 10:08 04/03/25 19:48 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)92 04/02/25 10:08 04/03/25 19:48 115-131 Terphenyl-d14 (Surr)82 04/02/25 10:08 04/03/25 19:48 124-132 Eurofins Cedar Falls Page 33 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-8Client Sample ID: EB-4 (8-10) Matrix: SolidDate Collected: 03/27/25 15:35 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.3 10.3 mg/Kg ☼03/31/25 10:48 04/01/25 17:41 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)105 80 -120 03/31/25 10:48 04/01/25 17:41 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL 96.7 36.0 mg/Kg ☼04/03/25 08:35 04/09/25 08:27 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 2.14 0.943 mg/Kg ☼04/02/25 12:00 04/03/25 15:09 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 0.943 mg/Kg 04/02/25 12:00 04/03/25 15:09 5☼35.4Barium 0.471 mg/Kg 04/02/25 12:00 04/03/25 15:09 5☼<0.471Cadmium 1.41 mg/Kg 04/02/25 12:00 04/03/25 15:09 5☼11.0Chromium 2.36 mg/Kg 04/02/25 12:00 04/03/25 15:09 5☼3.12Lead 1.41 mg/Kg 04/02/25 12:00 04/03/25 15:09 5☼<1.41Selenium 0.471 mg/Kg 04/02/25 12:00 04/03/25 15:09 5☼<0.471Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0162 0.0162 mg/Kg ☼04/01/25 12:15 04/01/25 15:25 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 5.0 0.1 %03/31/25 11:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:07 195.0Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 34 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-9Client Sample ID: EB-5 (4-6) Matrix: SolidDate Collected: 03/27/25 15:40 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.572 0.572 mg/Kg ☼04/07/25 07:20 04/07/25 23:41 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Allyl chloride 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Benzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Bromobenzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Bromochloromethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Bromodichloromethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Bromoform 0.572 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.572Bromomethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Butylbenzene, n- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Butylbenzene, sec- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Butylbenzene, tert- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Carbon tetrachloride 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Chlorobenzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Chloroethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Chloroform 0.286 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.286Chloromethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1142-Chlorotoluene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1144-Chlorotoluene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dibromo-3-chloropropane, 1,2- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dibromochloromethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dibromoethane, 1,2- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dibromomethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichlorobenzene, 1,2- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichlorobenzene, 1,3- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichlorobenzene, 1,4- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichlorodifluoromethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloroethane, 1,1- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloroethane, 1,2- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloroethylene, 1,1- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloroethylene, cis-1,2- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloroethylene, trans-1,2 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichlorofluoromethane 0.286 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.286Dichloromethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloropropane, 1,2- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloropropane, 1,3- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloropropane, 2,2- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloropropene, 1,1- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloropropene, cis 1,3- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Dichloropropene, trans 1,3- 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Ethylbenzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Ethyl ether 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Hexachlorobutadiene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Isopropylbenzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114p-Isopropyltoluene 0.858 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.858Methyl ethyl ketone (MEK) 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1144-Methyl-2-pentanone (MIBK) 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Methyl tert-butyl ether 0.286 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.286Naphthalene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Propylbenzene, n- Eurofins Cedar Falls Page 35 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-9Client Sample ID: EB-5 (4-6) Matrix: SolidDate Collected: 03/27/25 15:40 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.114 0.114 mg/Kg ☼04/07/25 07:20 04/07/25 23:41 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,1,1,2-Tetrachloroethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,1,2,2-Tetrachloroethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Tetrachloroethene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Tetrahydrofuran 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Toluene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,2,3-Trichlorobenzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,2,4-Trichlorobenzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,1,1-Trichloroethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,1,2-Trichloroethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Trichloroethene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Trichlorofluoromethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,2,3-Trichloropropane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,1,2-Trichlorotrifluoroethane 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,2,4-Trimethylbenzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.1141,3,5-Trimethylbenzene 0.114 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.114Vinyl chloride 0.172 mg/Kg 04/07/25 07:20 04/07/25 23:41 1☼<0.172Xylenes, Total 4-Bromofluorobenzene (Surr)92 80 -120 04/07/25 07:20 04/07/25 23:41 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)101 04/07/25 07:20 04/07/25 23:41 180-120 Toluene-d8 (Surr)98 04/07/25 07:20 04/07/25 23:41 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL 0.0119 0.00502 mg/Kg ☼04/02/25 10:08 04/03/25 20:12 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼<0.00502Acenaphthene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0243Acenaphthylene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0164Anthracene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0634Benzo(a)anthracene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0787Benzo(a)pyrene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.111Benzo(b)fluoranthene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.138Benzo(g,h,i)perylene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0343Benzo(k)fluoranthene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.108Chrysene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0335Dibenz(a,h)anthracene 0.00502 mg/Kg 04/02/25 10:08 04/04/25 14:34 1☼0.157Fluoranthene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼<0.00502Fluorene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0739Indeno(1,2,3-cd)pyrene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0166Naphthalene 0.00502 mg/Kg 04/02/25 10:08 04/03/25 20:12 1☼0.0716Phenanthrene 0.00502 mg/Kg 04/02/25 10:08 04/04/25 14:34 1☼0.155Pyrene 2-Fluorobiphenyl (Surr)96 28 -116 04/02/25 10:08 04/03/25 20:12 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)131 04/02/25 10:08 04/03/25 20:12 115-131 Terphenyl-d14 (Surr)113 04/02/25 10:08 04/03/25 20:12 124-132 Eurofins Cedar Falls Page 36 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-9Client Sample ID: EB-5 (4-6) Matrix: SolidDate Collected: 03/27/25 15:40 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.8 10.8 mg/Kg ☼03/31/25 10:48 04/01/25 18:07 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)103 80 -120 03/31/25 10:48 04/01/25 18:07 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL 89.5 30.0 mg/Kg ☼04/03/25 08:35 04/09/25 08:14 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 2.04 0.930 mg/Kg ☼04/02/25 12:00 04/03/25 15:18 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 0.930 mg/Kg 04/02/25 12:00 04/03/25 15:18 5☼52.1Barium 0.465 mg/Kg 04/02/25 12:00 04/03/25 15:18 5☼<0.465Cadmium 1.40 mg/Kg 04/02/25 12:00 04/03/25 15:18 5☼13.8Chromium 2.33 mg/Kg 04/02/25 12:00 04/03/25 15:18 5☼34.9Lead 1.40 mg/Kg 04/02/25 12:00 04/03/25 15:18 5☼<1.40Selenium 0.465 mg/Kg 04/02/25 12:00 04/03/25 15:18 5☼<0.465Silver Method: SW846 7471B - Mercury (CVAA) RL MDL 0.454 0.174 mg/Kg ☼04/03/25 15:44 04/04/25 15:36 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 7.5 0.1 %03/31/25 11:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:35 192.5Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 37 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-10Client Sample ID: EB-5 (10-12) Matrix: SolidDate Collected: 03/27/25 15:45 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.667 0.667 mg/Kg ☼04/07/25 07:20 04/08/25 00:04 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Allyl chloride 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Benzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Bromobenzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Bromochloromethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Bromodichloromethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Bromoform 0.667 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.667Bromomethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Butylbenzene, n- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Butylbenzene, sec- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Butylbenzene, tert- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Carbon tetrachloride 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Chlorobenzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Chloroethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Chloroform 0.334 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.334Chloromethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1332-Chlorotoluene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1334-Chlorotoluene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dibromo-3-chloropropane, 1,2- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dibromochloromethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dibromoethane, 1,2- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dibromomethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichlorobenzene, 1,2- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichlorobenzene, 1,3- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichlorobenzene, 1,4- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichlorodifluoromethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloroethane, 1,1- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloroethane, 1,2- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloroethylene, 1,1- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloroethylene, cis-1,2- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloroethylene, trans-1,2 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichlorofluoromethane 0.334 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.334Dichloromethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloropropane, 1,2- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloropropane, 1,3- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloropropane, 2,2- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloropropene, 1,1- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloropropene, cis 1,3- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Dichloropropene, trans 1,3- 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Ethylbenzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Ethyl ether 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Hexachlorobutadiene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Isopropylbenzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133p-Isopropyltoluene 1.00 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<1.00Methyl ethyl ketone (MEK) 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1334-Methyl-2-pentanone (MIBK) 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Methyl tert-butyl ether 0.334 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.334Naphthalene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Propylbenzene, n- Eurofins Cedar Falls Page 38 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-10Client Sample ID: EB-5 (10-12) Matrix: SolidDate Collected: 03/27/25 15:45 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.133 0.133 mg/Kg ☼04/07/25 07:20 04/08/25 00:04 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,1,1,2-Tetrachloroethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,1,2,2-Tetrachloroethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Tetrachloroethene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Tetrahydrofuran 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Toluene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,2,3-Trichlorobenzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,2,4-Trichlorobenzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,1,1-Trichloroethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,1,2-Trichloroethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Trichloroethene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Trichlorofluoromethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,2,3-Trichloropropane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,1,2-Trichlorotrifluoroethane 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,2,4-Trimethylbenzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.1331,3,5-Trimethylbenzene 0.133 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.133Vinyl chloride 0.200 mg/Kg 04/07/25 07:20 04/08/25 00:04 1☼<0.200Xylenes, Total 4-Bromofluorobenzene (Surr)100 80 -120 04/07/25 07:20 04/08/25 00:04 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)98 04/07/25 07:20 04/08/25 00:04 180-120 Toluene-d8 (Surr)99 04/07/25 07:20 04/08/25 00:04 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL 0.00890 0.00550 mg/Kg ☼04/02/25 10:08 04/03/25 20:36 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Acenaphthene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Acenaphthylene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Anthracene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Benzo(a)anthracene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Benzo(a)pyrene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼0.00885Benzo(b)fluoranthene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Benzo(g,h,i)perylene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Benzo(k)fluoranthene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Chrysene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Dibenz(a,h)anthracene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Fluoranthene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼0.00765Fluorene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Indeno(1,2,3-cd)pyrene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼0.00615Naphthalene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Phenanthrene 0.00550 mg/Kg 04/02/25 10:08 04/03/25 20:36 1☼<0.00550Pyrene 2-Fluorobiphenyl (Surr)64 28 -116 04/02/25 10:08 04/03/25 20:36 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)23 04/02/25 10:08 04/03/25 20:36 115-131 Terphenyl-d14 (Surr)70 04/02/25 10:08 04/03/25 20:36 124-132 Eurofins Cedar Falls Page 39 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-10Client Sample ID: EB-5 (10-12) Matrix: SolidDate Collected: 03/27/25 15:45 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <11.6 11.6 mg/Kg ☼03/31/25 10:48 04/01/25 18:33 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)106 80 -120 03/31/25 10:48 04/01/25 18:33 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL <6.39 6.39 mg/Kg ☼04/03/25 08:35 04/08/25 16:04 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 3.47 1.10 mg/Kg ☼04/02/25 12:00 04/03/25 15:21 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 1.10 mg/Kg 04/02/25 12:00 04/03/25 15:21 5☼73.0Barium 0.552 mg/Kg 04/02/25 12:00 04/03/25 15:21 5☼<0.552Cadmium 1.66 mg/Kg 04/02/25 12:00 04/03/25 15:21 5☼12.2Chromium 2.76 mg/Kg 04/02/25 12:00 04/03/25 15:21 5☼5.67Lead 1.66 mg/Kg 04/02/25 12:00 04/03/25 15:21 5☼<1.66Selenium 0.552 mg/Kg 04/02/25 12:00 04/03/25 15:21 5☼<0.552Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0222 0.0222 mg/Kg ☼04/03/25 15:44 04/04/25 15:29 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 14.5 0.1 %03/31/25 11:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:35 185.5Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 40 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-11Client Sample ID: EB-6 (2-4) Matrix: SolidDate Collected: 03/27/25 15:50 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.599 0.599 mg/Kg ☼04/07/25 07:20 04/08/25 00:27 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Allyl chloride 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Benzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Bromobenzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Bromochloromethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Bromodichloromethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Bromoform 0.599 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.599Bromomethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Butylbenzene, n- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Butylbenzene, sec- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Butylbenzene, tert- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Carbon tetrachloride 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Chlorobenzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Chloroethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Chloroform 0.300 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.300Chloromethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1202-Chlorotoluene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1204-Chlorotoluene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dibromo-3-chloropropane, 1,2- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dibromochloromethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dibromoethane, 1,2- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dibromomethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichlorobenzene, 1,2- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichlorobenzene, 1,3- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichlorobenzene, 1,4- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichlorodifluoromethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloroethane, 1,1- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloroethane, 1,2- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloroethylene, 1,1- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloroethylene, cis-1,2- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloroethylene, trans-1,2 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichlorofluoromethane 0.300 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.300Dichloromethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloropropane, 1,2- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloropropane, 1,3- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloropropane, 2,2- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloropropene, 1,1- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloropropene, cis 1,3- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Dichloropropene, trans 1,3- 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Ethylbenzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Ethyl ether 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Hexachlorobutadiene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Isopropylbenzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120p-Isopropyltoluene 0.899 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.899Methyl ethyl ketone (MEK) 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1204-Methyl-2-pentanone (MIBK) 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Methyl tert-butyl ether 0.300 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.300Naphthalene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Propylbenzene, n- Eurofins Cedar Falls Page 41 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-11Client Sample ID: EB-6 (2-4) Matrix: SolidDate Collected: 03/27/25 15:50 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.120 0.120 mg/Kg ☼04/07/25 07:20 04/08/25 00:27 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,1,1,2-Tetrachloroethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,1,2,2-Tetrachloroethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Tetrachloroethene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Tetrahydrofuran 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Toluene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,2,3-Trichlorobenzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,2,4-Trichlorobenzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,1,1-Trichloroethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,1,2-Trichloroethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Trichloroethene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Trichlorofluoromethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,2,3-Trichloropropane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,1,2-Trichlorotrifluoroethane 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,2,4-Trimethylbenzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.1201,3,5-Trimethylbenzene 0.120 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.120Vinyl chloride 0.180 mg/Kg 04/07/25 07:20 04/08/25 00:27 1☼<0.180Xylenes, Total 4-Bromofluorobenzene (Surr)102 80 -120 04/07/25 07:20 04/08/25 00:27 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)108 04/07/25 07:20 04/08/25 00:27 180-120 Toluene-d8 (Surr)105 04/07/25 07:20 04/08/25 00:27 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL 0.0160 0.00509 mg/Kg ☼04/02/25 10:08 04/03/25 21:00 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼<0.00509Acenaphthene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.00933Acenaphthylene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.00517Anthracene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.0214Benzo(a)anthracene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.0264Benzo(a)pyrene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.0398Benzo(b)fluoranthene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.0191Benzo(g,h,i)perylene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.0129Benzo(k)fluoranthene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.0272Chrysene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼<0.00509Dibenz(a,h)anthracene 0.00509 mg/Kg 04/02/25 10:08 04/04/25 15:22 1☼0.0467Fluoranthene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼<0.00509Fluorene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.0140Indeno(1,2,3-cd)pyrene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.00534Naphthalene 0.00509 mg/Kg 04/02/25 10:08 04/03/25 21:00 1☼0.0154Phenanthrene 0.00509 mg/Kg 04/02/25 10:08 04/04/25 15:22 1☼0.0438Pyrene 2-Fluorobiphenyl (Surr)86 28 -116 04/02/25 10:08 04/03/25 21:00 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)117 04/02/25 10:08 04/03/25 21:00 115-131 Terphenyl-d14 (Surr)107 04/02/25 10:08 04/03/25 21:00 124-132 Eurofins Cedar Falls Page 42 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-11Client Sample ID: EB-6 (2-4) Matrix: SolidDate Collected: 03/27/25 15:50 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <11.1 11.1 mg/Kg ☼04/02/25 09:13 04/03/25 00:43 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)107 80 -120 04/02/25 09:13 04/03/25 00:43 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL <4.43 4.43 mg/Kg ☼04/03/25 08:35 04/08/25 17:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 1.64 1.04 mg/Kg ☼04/02/25 12:00 04/03/25 15:23 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 1.04 mg/Kg 04/02/25 12:00 04/03/25 15:23 5☼45.6Barium 0.518 mg/Kg 04/02/25 12:00 04/03/25 15:23 5☼<0.518Cadmium 1.55 mg/Kg 04/02/25 12:00 04/03/25 15:23 5☼15.6Chromium 2.59 mg/Kg 04/02/25 12:00 04/03/25 15:23 5☼19.1Lead 1.55 mg/Kg 04/02/25 12:00 04/03/25 15:23 5☼<1.55Selenium 0.518 mg/Kg 04/02/25 12:00 04/03/25 15:23 5☼<0.518Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0208 0.0208 mg/Kg ☼04/03/25 15:44 04/04/25 15:32 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 8.4 0.1 %03/31/25 11:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:35 191.6Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 43 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-12Client Sample ID: EB-6 (8-10) Matrix: SolidDate Collected: 03/27/25 15:55 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.560 0.560 mg/Kg ☼04/07/25 07:20 04/08/25 00:50 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Allyl chloride 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Benzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Bromobenzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Bromochloromethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Bromodichloromethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Bromoform 0.560 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.560Bromomethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Butylbenzene, n- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Butylbenzene, sec- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Butylbenzene, tert- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Carbon tetrachloride 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Chlorobenzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Chloroethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Chloroform 0.280 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.280Chloromethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1122-Chlorotoluene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1124-Chlorotoluene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dibromo-3-chloropropane, 1,2- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dibromochloromethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dibromoethane, 1,2- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dibromomethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichlorobenzene, 1,2- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichlorobenzene, 1,3- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichlorobenzene, 1,4- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichlorodifluoromethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloroethane, 1,1- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloroethane, 1,2- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloroethylene, 1,1- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloroethylene, cis-1,2- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloroethylene, trans-1,2 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichlorofluoromethane 0.280 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.280Dichloromethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloropropane, 1,2- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloropropane, 1,3- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloropropane, 2,2- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloropropene, 1,1- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloropropene, cis 1,3- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Dichloropropene, trans 1,3- 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Ethylbenzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Ethyl ether 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Hexachlorobutadiene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Isopropylbenzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112p-Isopropyltoluene 0.840 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.840Methyl ethyl ketone (MEK) 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1124-Methyl-2-pentanone (MIBK) 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Methyl tert-butyl ether 0.280 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.280Naphthalene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Propylbenzene, n- Eurofins Cedar Falls Page 44 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-12Client Sample ID: EB-6 (8-10) Matrix: SolidDate Collected: 03/27/25 15:55 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.112 0.112 mg/Kg ☼04/07/25 07:20 04/08/25 00:50 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,1,1,2-Tetrachloroethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,1,2,2-Tetrachloroethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Tetrachloroethene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Tetrahydrofuran 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Toluene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,2,3-Trichlorobenzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,2,4-Trichlorobenzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,1,1-Trichloroethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,1,2-Trichloroethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Trichloroethene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Trichlorofluoromethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,2,3-Trichloropropane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,1,2-Trichlorotrifluoroethane 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,2,4-Trimethylbenzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.1121,3,5-Trimethylbenzene 0.112 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.112Vinyl chloride 0.168 mg/Kg 04/07/25 07:20 04/08/25 00:50 1☼<0.168Xylenes, Total 4-Bromofluorobenzene (Surr)96 80 -120 04/07/25 07:20 04/08/25 00:50 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)97 04/07/25 07:20 04/08/25 00:50 180-120 Toluene-d8 (Surr)99 04/07/25 07:20 04/08/25 00:50 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.00493 0.00493 mg/Kg ☼04/02/25 10:08 04/03/25 21:24 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼<0.00493Acenaphthene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼<0.00493Acenaphthylene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼<0.00493Anthracene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼0.00894Benzo(a)anthracene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼0.0175Benzo(a)pyrene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼0.0229Benzo(b)fluoranthene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼0.0279Benzo(g,h,i)perylene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼<0.00493Benzo(k)fluoranthene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼0.0496Chrysene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼0.00882Dibenz(a,h)anthracene 0.00493 mg/Kg 04/02/25 10:08 04/04/25 15:46 1☼0.0100Fluoranthene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼<0.00493Fluorene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼0.0112Indeno(1,2,3-cd)pyrene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼<0.00493Naphthalene 0.00493 mg/Kg 04/02/25 10:08 04/03/25 21:24 1☼0.00574Phenanthrene 0.00493 mg/Kg 04/02/25 10:08 04/04/25 15:46 1☼0.0280Pyrene 2-Fluorobiphenyl (Surr)64 28 -116 04/02/25 10:08 04/03/25 21:24 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)91 04/02/25 10:08 04/03/25 21:24 115-131 Terphenyl-d14 (Surr)82 04/02/25 10:08 04/03/25 21:24 124-132 Eurofins Cedar Falls Page 45 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-12Client Sample ID: EB-6 (8-10) Matrix: SolidDate Collected: 03/27/25 15:55 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.7 10.7 mg/Kg ☼04/02/25 09:13 04/03/25 01:09 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)106 80 -120 04/02/25 09:13 04/03/25 01:09 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL 133 40.7 mg/Kg ☼04/03/25 08:35 04/08/25 18:40 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) RL MDL 1.47 0.922 mg/Kg ☼04/02/25 12:00 04/03/25 15:25 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 0.922 mg/Kg 04/02/25 12:00 04/03/25 15:25 5☼36.5Barium 0.461 mg/Kg 04/02/25 12:00 04/03/25 15:25 5☼<0.461Cadmium 1.38 mg/Kg 04/02/25 12:00 04/03/25 15:25 5☼16.2Chromium 2.30 mg/Kg 04/02/25 12:00 04/03/25 15:25 5☼4.33Lead 1.38 mg/Kg 04/02/25 12:00 04/03/25 15:25 5☼<1.38Selenium 0.461 mg/Kg 04/02/25 12:00 04/03/25 15:25 5☼<0.461Silver Method: SW846 7471B - Mercury (CVAA) RL MDL <0.0185 0.0185 mg/Kg ☼04/03/25 15:44 04/04/25 15:34 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury General Chemistry RL RL 5.0 0.1 %03/31/25 11:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Percent Moisture (EPA Moisture) 0.1 %03/31/25 11:35 195.0Percent Solids (EPA Moisture) Eurofins Cedar Falls Page 46 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-13Client Sample ID: Trip Blank - Soil Matrix: SolidDate Collected: 03/27/25 08:00 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <0.500 0.500 mg/Kg 04/07/25 07:20 04/08/25 01:13 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Allyl chloride 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Benzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Bromobenzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Bromochloromethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Bromodichloromethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Bromoform 0.500 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.500Bromomethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Butylbenzene, n- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Butylbenzene, sec- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Butylbenzene, tert- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Carbon tetrachloride 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Chlorobenzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Chloroethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Chloroform 0.250 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.250Chloromethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1002-Chlorotoluene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1004-Chlorotoluene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dibromo-3-chloropropane, 1,2- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dibromochloromethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dibromoethane, 1,2- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dibromomethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichlorobenzene, 1,2- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichlorobenzene, 1,3- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichlorobenzene, 1,4- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichlorodifluoromethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloroethane, 1,1- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloroethane, 1,2- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloroethylene, 1,1- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloroethylene, cis-1,2- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloroethylene, trans-1,2 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichlorofluoromethane 0.250 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.250Dichloromethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloropropane, 1,2- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloropropane, 1,3- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloropropane, 2,2- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloropropene, 1,1- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloropropene, cis 1,3- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Dichloropropene, trans 1,3- 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Ethylbenzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Ethyl ether 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Hexachlorobutadiene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Isopropylbenzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100p-Isopropyltoluene 0.750 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.750Methyl ethyl ketone (MEK) 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1004-Methyl-2-pentanone (MIBK) 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Methyl tert-butyl ether 0.250 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.250Naphthalene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Propylbenzene, n- Eurofins Cedar Falls Page 47 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-13Client Sample ID: Trip Blank - Soil Matrix: SolidDate Collected: 03/27/25 08:00 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <0.100 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,1,1,2-Tetrachloroethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,1,2,2-Tetrachloroethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Tetrachloroethene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Tetrahydrofuran 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Toluene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,2,3-Trichlorobenzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,2,4-Trichlorobenzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,1,1-Trichloroethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,1,2-Trichloroethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Trichloroethene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Trichlorofluoromethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,2,3-Trichloropropane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,1,2-Trichlorotrifluoroethane 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,2,4-Trimethylbenzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.1001,3,5-Trimethylbenzene 0.100 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.100Vinyl chloride 0.150 mg/Kg 04/07/25 07:20 04/08/25 01:13 1<0.150Xylenes, Total 4-Bromofluorobenzene (Surr)104 80 -120 04/07/25 07:20 04/08/25 01:13 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)96 04/07/25 07:20 04/08/25 01:13 180-120 Toluene-d8 (Surr)102 04/07/25 07:20 04/08/25 01:13 180-120 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <10.0 10.0 mg/Kg 04/01/25 09:25 04/02/25 05:22 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)109 80 -120 04/01/25 09:25 04/02/25 05:22 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Eurofins Cedar Falls Page 48 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-14Client Sample ID: EB-1 Matrix: WaterDate Collected: 03/27/25 14:05 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <10.0 10.0 ug/L 04/03/25 02:29 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 2.00 ug/L 04/03/25 02:29 1<2.00Allyl chloride 0.500 ug/L 04/03/25 02:29 1<0.500Benzene 1.00 ug/L 04/03/25 02:29 1<1.00Bromobenzene 5.00 ug/L 04/03/25 02:29 1<5.00Bromochloromethane 1.00 ug/L 04/03/25 02:29 1<1.00Bromodichloromethane 5.00 ug/L 04/03/25 02:29 1<5.00Bromoform 4.00 ug/L 04/03/25 02:29 1<4.00Bromomethane 1.00 ug/L 04/03/25 02:29 1<1.00Butylbenzene, n- 1.00 ug/L 04/03/25 02:29 1<1.00Butylbenzene, sec- 1.00 ug/L 04/03/25 02:29 1<1.00Butylbenzene, tert- 2.00 ug/L 04/03/25 02:29 1<2.00Carbon tetrachloride 1.00 ug/L 04/03/25 02:29 1<1.00Chlorobenzene 4.00 ug/L 04/03/25 02:29 1<4.00Chloroethane 3.00 ug/L 04/03/25 02:29 1<3.00Chloroform 3.00 ug/L 04/03/25 02:29 1<3.00Chloromethane 1.00 ug/L 04/03/25 02:29 1<1.002-Chlorotoluene 1.00 ug/L 04/03/25 02:29 1<1.004-Chlorotoluene 5.00 ug/L 04/03/25 02:29 1<5.00Dibromo-3-chloropropane, 1,2- 5.00 ug/L 04/03/25 02:29 1<5.00Dibromochloromethane 1.00 ug/L 04/03/25 02:29 1<1.00Dibromoethane, 1,2- 1.00 ug/L 04/03/25 02:29 1<1.00Dibromomethane 1.00 ug/L 04/03/25 02:29 1<1.00Dichlorobenzene, 1,2- 1.00 ug/L 04/03/25 02:29 1<1.00Dichlorobenzene, 1,3- 1.00 ug/L 04/03/25 02:29 1<1.00Dichlorobenzene, 1,4- 3.00 ug/L 04/03/25 02:29 1<3.00Dichlorodifluoromethane 1.00 ug/L 04/03/25 02:29 1<1.00Dichloroethane, 1,1- 1.00 ug/L 04/03/25 02:29 1<1.00Dichloroethane, 1,2- 2.00 ug/L 04/03/25 02:29 1<2.00Dichloroethylene, 1,1- 1.00 ug/L 04/03/25 02:29 1<1.00Dichloroethylene, cis-1,2- 1.00 ug/L 04/03/25 02:29 1<1.00Dichloroethylene, trans-1,2 1.00 ug/L 04/03/25 02:29 1<1.00Dichlorofluoromethane 5.00 ug/L 04/03/25 02:29 1<5.00Dichloromethane 1.00 ug/L 04/03/25 02:29 1<1.00Dichloropropane, 1,2- 1.00 ug/L 04/03/25 02:29 1<1.00Dichloropropane, 1,3- 4.00 ug/L 04/03/25 02:29 1<4.00Dichloropropane, 2,2- 1.00 ug/L 04/03/25 02:29 1<1.00Dichloropropene, 1,1- 5.00 ug/L 04/03/25 02:29 1<5.00Dichloropropene, cis 1,3- 5.00 ug/L 04/03/25 02:29 1<5.00Dichloropropene, trans 1,3- 2.00 ug/L 04/03/25 02:29 1<2.00Diethyl ether 1.00 ug/L 04/03/25 02:29 1<1.00Ethylbenzene 5.00 ug/L 04/03/25 02:29 1<5.00Hexachlorobutadiene 1.00 ug/L 04/03/25 02:29 1<1.00Isopropylbenzene 1.00 ug/L 04/03/25 02:29 1<1.00p-Isopropyltoluene 10.0 ug/L 04/03/25 02:29 1<10.0Methyl ethyl ketone (MEK) 10.0 ug/L 04/03/25 02:29 1<10.04-Methyl-2-pentanone (MIBK) 1.00 ug/L 04/03/25 02:29 1<1.00Methyl tert-butyl ether 5.00 ug/L 04/03/25 02:29 1<5.00Naphthalene 1.00 ug/L 04/03/25 02:29 1<1.00Propylbenzene, n- Eurofins Cedar Falls Page 49 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-14Client Sample ID: EB-1 Matrix: WaterDate Collected: 03/27/25 14:05 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <1.00 1.00 ug/L 04/03/25 02:29 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 1.00 ug/L 04/03/25 02:29 1<1.001,1,1,2-Tetrachloroethane 1.00 ug/L 04/03/25 02:29 1<1.001,1,2,2-Tetrachloroethane 1.00 ug/L 04/03/25 02:29 1<1.00Tetrachloroethene 10.0 ug/L 04/03/25 02:29 1<10.0Tetrahydrofuran 1.00 ug/L 04/03/25 02:29 1<1.00Toluene 5.00 ug/L 04/03/25 02:29 1<5.001,2,3-Trichlorobenzene 5.00 ug/L 04/03/25 02:29 1<5.001,2,4-Trichlorobenzene 1.00 ug/L 04/03/25 02:29 1<1.001,1,1-Trichloroethane 1.00 ug/L 04/03/25 02:29 1<1.001,1,2-Trichloroethane 1.00 ug/L 04/03/25 02:29 1<1.00Trichloroethene 4.00 ug/L 04/03/25 02:29 1<4.00Trichlorofluoromethane 1.00 ug/L 04/03/25 02:29 1<1.001,2,3-Trichloropropane 2.00 ug/L 04/03/25 02:29 1<2.001,1,2-Trichlorotrifluoroethane 1.00 ug/L 04/03/25 02:29 1<1.001,2,4-Trimethylbenzene 1.00 ug/L 04/03/25 02:29 1<1.001,3,5-Trimethylbenzene 1.00 ug/L 04/03/25 02:29 1<1.00Vinyl chloride 3.00 ug/L 04/03/25 02:29 1<3.00Xylenes, Total 4-Bromofluorobenzene (Surr)98 80 -120 04/03/25 02:29 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)108 04/03/25 02:29 173-130 Toluene-d8 (Surr)98 04/03/25 02:29 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.0962 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Acenaphthene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Acenaphthylene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Anthracene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Benzo(a)anthracene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Benzo(a)pyrene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Benzo(b)fluoranthene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Benzo(g,h,i)perylene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Benzo(k)fluoranthene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Chrysene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Dibenz(a,h)anthracene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Fluoranthene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Fluorene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Indeno(1,2,3-cd)pyrene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Naphthalene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Phenanthrene 0.0962 ug/L 04/03/25 09:40 04/03/25 20:04 1<0.0962Pyrene 2-Fluorobiphenyl (Surr)56 39 -118 04/03/25 09:40 04/03/25 20:04 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)55 04/03/25 09:40 04/03/25 20:04 145-129 Terphenyl-d14 (Surr)45 04/03/25 09:40 04/03/25 20:04 112-144 Eurofins Cedar Falls Page 50 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-14Client Sample ID: EB-1 Matrix: WaterDate Collected: 03/27/25 14:05 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <100 100 ug/L 04/02/25 12:03 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)90 80 -120 04/02/25 12:03 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL <0.100 0.100 mg/L 04/01/25 12:54 04/07/25 16:19 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) - Dissolved RL MDL 2.34 2.00 ug/L 04/01/25 09:30 04/01/25 15:01 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 2.00 ug/L 04/01/25 09:30 04/01/25 15:01 1126Barium 0.200 ug/L 04/01/25 09:30 04/01/25 15:01 1<0.200Cadmium 5.00 ug/L 04/01/25 09:30 04/01/25 15:01 1<5.00Chromium 0.500 ug/L 04/01/25 09:30 04/01/25 15:01 1<0.500Lead 5.00 ug/L 04/01/25 09:30 04/01/25 15:01 1<5.00Selenium 1.00 ug/L 04/01/25 09:30 04/01/25 15:01 1<1.00Silver Method: SW846 7470A - Mercury (CVAA) - Dissolved RL MDL <0.200 0.200 ug/L 04/02/25 09:16 04/02/25 12:50 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury Eurofins Cedar Falls Page 51 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-15Client Sample ID: EB-3 Matrix: WaterDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <10.0 10.0 ug/L 04/03/25 02:51 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 2.00 ug/L 04/03/25 02:51 1<2.00Allyl chloride 0.500 ug/L 04/03/25 02:51 1<0.500Benzene 1.00 ug/L 04/03/25 02:51 1<1.00Bromobenzene 5.00 ug/L 04/03/25 02:51 1<5.00Bromochloromethane 1.00 ug/L 04/03/25 02:51 1<1.00Bromodichloromethane 5.00 ug/L 04/03/25 02:51 1<5.00Bromoform 4.00 ug/L 04/03/25 02:51 1<4.00Bromomethane 1.00 ug/L 04/03/25 02:51 1<1.00Butylbenzene, n- 1.00 ug/L 04/03/25 02:51 1<1.00Butylbenzene, sec- 1.00 ug/L 04/03/25 02:51 1<1.00Butylbenzene, tert- 2.00 ug/L 04/03/25 02:51 1<2.00Carbon tetrachloride 1.00 ug/L 04/03/25 02:51 1<1.00Chlorobenzene 4.00 ug/L 04/03/25 02:51 1<4.00Chloroethane 3.00 ug/L 04/03/25 02:51 1<3.00Chloroform 3.00 ug/L 04/03/25 02:51 1<3.00Chloromethane 1.00 ug/L 04/03/25 02:51 1<1.002-Chlorotoluene 1.00 ug/L 04/03/25 02:51 1<1.004-Chlorotoluene 5.00 ug/L 04/03/25 02:51 1<5.00Dibromo-3-chloropropane, 1,2- 5.00 ug/L 04/03/25 02:51 1<5.00Dibromochloromethane 1.00 ug/L 04/03/25 02:51 1<1.00Dibromoethane, 1,2- 1.00 ug/L 04/03/25 02:51 1<1.00Dibromomethane 1.00 ug/L 04/03/25 02:51 1<1.00Dichlorobenzene, 1,2- 1.00 ug/L 04/03/25 02:51 1<1.00Dichlorobenzene, 1,3- 1.00 ug/L 04/03/25 02:51 1<1.00Dichlorobenzene, 1,4- 3.00 ug/L 04/03/25 02:51 1<3.00Dichlorodifluoromethane 1.00 ug/L 04/03/25 02:51 1<1.00Dichloroethane, 1,1- 1.00 ug/L 04/03/25 02:51 1<1.00Dichloroethane, 1,2- 2.00 ug/L 04/03/25 02:51 1<2.00Dichloroethylene, 1,1- 1.00 ug/L 04/03/25 02:51 1<1.00Dichloroethylene, cis-1,2- 1.00 ug/L 04/03/25 02:51 1<1.00Dichloroethylene, trans-1,2 1.00 ug/L 04/03/25 02:51 1<1.00Dichlorofluoromethane 5.00 ug/L 04/03/25 02:51 1<5.00Dichloromethane 1.00 ug/L 04/03/25 02:51 1<1.00Dichloropropane, 1,2- 1.00 ug/L 04/03/25 02:51 1<1.00Dichloropropane, 1,3- 4.00 ug/L 04/03/25 02:51 1<4.00Dichloropropane, 2,2- 1.00 ug/L 04/03/25 02:51 1<1.00Dichloropropene, 1,1- 5.00 ug/L 04/03/25 02:51 1<5.00Dichloropropene, cis 1,3- 5.00 ug/L 04/03/25 02:51 1<5.00Dichloropropene, trans 1,3- 2.00 ug/L 04/03/25 02:51 1<2.00Diethyl ether 1.00 ug/L 04/03/25 02:51 1<1.00Ethylbenzene 5.00 ug/L 04/03/25 02:51 1<5.00Hexachlorobutadiene 1.00 ug/L 04/03/25 02:51 1<1.00Isopropylbenzene 1.00 ug/L 04/03/25 02:51 1<1.00p-Isopropyltoluene 10.0 ug/L 04/03/25 02:51 1<10.0Methyl ethyl ketone (MEK) 10.0 ug/L 04/03/25 02:51 1<10.04-Methyl-2-pentanone (MIBK) 1.00 ug/L 04/03/25 02:51 1<1.00Methyl tert-butyl ether 5.00 ug/L 04/03/25 02:51 1<5.00Naphthalene 1.00 ug/L 04/03/25 02:51 1<1.00Propylbenzene, n- Eurofins Cedar Falls Page 52 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-15Client Sample ID: EB-3 Matrix: WaterDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <1.00 1.00 ug/L 04/03/25 02:51 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 1.00 ug/L 04/03/25 02:51 1<1.001,1,1,2-Tetrachloroethane 1.00 ug/L 04/03/25 02:51 1<1.001,1,2,2-Tetrachloroethane 1.00 ug/L 04/03/25 02:51 1<1.00Tetrachloroethene 10.0 ug/L 04/03/25 02:51 1<10.0Tetrahydrofuran 1.00 ug/L 04/03/25 02:51 1<1.00Toluene 5.00 ug/L 04/03/25 02:51 1<5.001,2,3-Trichlorobenzene 5.00 ug/L 04/03/25 02:51 1<5.001,2,4-Trichlorobenzene 1.00 ug/L 04/03/25 02:51 1<1.001,1,1-Trichloroethane 1.00 ug/L 04/03/25 02:51 1<1.001,1,2-Trichloroethane 1.00 ug/L 04/03/25 02:51 1<1.00Trichloroethene 4.00 ug/L 04/03/25 02:51 1<4.00Trichlorofluoromethane 1.00 ug/L 04/03/25 02:51 1<1.001,2,3-Trichloropropane 2.00 ug/L 04/03/25 02:51 1<2.001,1,2-Trichlorotrifluoroethane 1.00 ug/L 04/03/25 02:51 1<1.001,2,4-Trimethylbenzene 1.00 ug/L 04/03/25 02:51 1<1.001,3,5-Trimethylbenzene 1.00 ug/L 04/03/25 02:51 1<1.00Vinyl chloride 3.00 ug/L 04/03/25 02:51 1<3.00Xylenes, Total 4-Bromofluorobenzene (Surr)103 80 -120 04/03/25 02:51 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)108 04/03/25 02:51 173-130 Toluene-d8 (Surr)96 04/03/25 02:51 180-120 Method: SW846 8270E - Semivolatile Organic Compounds (GC-MS/MS) RL MDL <0.0938 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2-Methylnaphthalene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Acenaphthene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Acenaphthylene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Anthracene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Benzo(a)anthracene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Benzo(a)pyrene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Benzo(b)fluoranthene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Benzo(g,h,i)perylene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Benzo(k)fluoranthene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Chrysene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Dibenz(a,h)anthracene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Fluoranthene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Fluorene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Indeno(1,2,3-cd)pyrene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Naphthalene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Phenanthrene 0.0938 ug/L 04/03/25 09:40 04/03/25 20:39 1<0.0938Pyrene 2-Fluorobiphenyl (Surr)86 39 -118 04/03/25 09:40 04/03/25 20:39 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Nitrobenzene-d5 (Surr)73 04/03/25 09:40 04/03/25 20:39 145-129 Terphenyl-d14 (Surr)82 04/03/25 09:40 04/03/25 20:39 112-144 Eurofins Cedar Falls Page 53 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-15Client Sample ID: EB-3 Matrix: WaterDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <100 100 ug/L 04/02/25 12:32 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)88 80 -120 04/02/25 12:32 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) RL MDL <0.0980 0.0980 mg/L 04/01/25 12:54 04/07/25 18:41 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Diesel Range Organics (DRO) Method: SW846 6020B - Metals (ICP/MS) - Dissolved RL MDL 2.57 2.00 ug/L 04/01/25 09:30 04/01/25 15:11 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Arsenic 2.00 ug/L 04/01/25 09:30 04/01/25 15:11 1126Barium 0.200 ug/L 04/01/25 09:30 04/01/25 15:11 1<0.200Cadmium 5.00 ug/L 04/01/25 09:30 04/01/25 15:11 1<5.00Chromium 0.500 ug/L 04/01/25 09:30 04/01/25 15:11 1<0.500Lead 5.00 ug/L 04/01/25 09:30 04/01/25 15:11 1<5.00Selenium 1.00 ug/L 04/01/25 09:30 04/01/25 15:11 1<1.00Silver Method: SW846 7470A - Mercury (CVAA) - Dissolved RL MDL <0.200 0.200 ug/L 04/02/25 09:16 04/02/25 12:52 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Mercury Eurofins Cedar Falls Page 54 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-16Client Sample ID: Trip Blank - GW Matrix: WaterDate Collected: 03/27/25 08:00 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS RL MDL <10.0 10.0 ug/L 04/02/25 21:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 2.00 ug/L 04/02/25 21:35 1<2.00Allyl chloride 0.500 ug/L 04/02/25 21:35 1<0.500Benzene 1.00 ug/L 04/02/25 21:35 1<1.00Bromobenzene 5.00 ug/L 04/02/25 21:35 1<5.00Bromochloromethane 1.00 ug/L 04/02/25 21:35 1<1.00Bromodichloromethane 5.00 ug/L 04/02/25 21:35 1<5.00Bromoform 4.00 ug/L 04/02/25 21:35 1<4.00Bromomethane 1.00 ug/L 04/02/25 21:35 1<1.00Butylbenzene, n- 1.00 ug/L 04/02/25 21:35 1<1.00Butylbenzene, sec- 1.00 ug/L 04/02/25 21:35 1<1.00Butylbenzene, tert- 2.00 ug/L 04/02/25 21:35 1<2.00Carbon tetrachloride 1.00 ug/L 04/02/25 21:35 1<1.00Chlorobenzene 4.00 ug/L 04/02/25 21:35 1<4.00Chloroethane 3.00 ug/L 04/02/25 21:35 1<3.00Chloroform 3.00 ug/L 04/02/25 21:35 1<3.00Chloromethane 1.00 ug/L 04/02/25 21:35 1<1.002-Chlorotoluene 1.00 ug/L 04/02/25 21:35 1<1.004-Chlorotoluene 5.00 ug/L 04/02/25 21:35 1<5.00Dibromo-3-chloropropane, 1,2- 5.00 ug/L 04/02/25 21:35 1<5.00Dibromochloromethane 1.00 ug/L 04/02/25 21:35 1<1.00Dibromoethane, 1,2- 1.00 ug/L 04/02/25 21:35 1<1.00Dibromomethane 1.00 ug/L 04/02/25 21:35 1<1.00Dichlorobenzene, 1,2- 1.00 ug/L 04/02/25 21:35 1<1.00Dichlorobenzene, 1,3- 1.00 ug/L 04/02/25 21:35 1<1.00Dichlorobenzene, 1,4- 3.00 ug/L 04/02/25 21:35 1<3.00Dichlorodifluoromethane 1.00 ug/L 04/02/25 21:35 1<1.00Dichloroethane, 1,1- 1.00 ug/L 04/02/25 21:35 1<1.00Dichloroethane, 1,2- 2.00 ug/L 04/02/25 21:35 1<2.00Dichloroethylene, 1,1- 1.00 ug/L 04/02/25 21:35 1<1.00Dichloroethylene, cis-1,2- 1.00 ug/L 04/02/25 21:35 1<1.00Dichloroethylene, trans-1,2 1.00 ug/L 04/02/25 21:35 1<1.00Dichlorofluoromethane 5.00 ug/L 04/02/25 21:35 1<5.00Dichloromethane 1.00 ug/L 04/02/25 21:35 1<1.00Dichloropropane, 1,2- 1.00 ug/L 04/02/25 21:35 1<1.00Dichloropropane, 1,3- 4.00 ug/L 04/02/25 21:35 1<4.00Dichloropropane, 2,2- 1.00 ug/L 04/02/25 21:35 1<1.00Dichloropropene, 1,1- 5.00 ug/L 04/02/25 21:35 1<5.00Dichloropropene, cis 1,3- 5.00 ug/L 04/02/25 21:35 1<5.00Dichloropropene, trans 1,3- 2.00 ug/L 04/02/25 21:35 1<2.00Diethyl ether 1.00 ug/L 04/02/25 21:35 1<1.00Ethylbenzene 5.00 ug/L 04/02/25 21:35 1<5.00Hexachlorobutadiene 1.00 ug/L 04/02/25 21:35 1<1.00Isopropylbenzene 1.00 ug/L 04/02/25 21:35 1<1.00p-Isopropyltoluene 10.0 ug/L 04/02/25 21:35 1<10.0Methyl ethyl ketone (MEK) 10.0 ug/L 04/02/25 21:35 1<10.04-Methyl-2-pentanone (MIBK) 1.00 ug/L 04/02/25 21:35 1<1.00Methyl tert-butyl ether 5.00 ug/L 04/02/25 21:35 1<5.00Naphthalene 1.00 ug/L 04/02/25 21:35 1<1.00Propylbenzene, n- Eurofins Cedar Falls Page 55 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Lab Sample ID: 310-303009-16Client Sample ID: Trip Blank - GW Matrix: WaterDate Collected: 03/27/25 08:00 Date Received: 03/29/25 08:45 Method: SW846 8260D - Volatile Organic Compounds by GC/MS (Continued) RL MDL <1.00 1.00 ug/L 04/02/25 21:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 1.00 ug/L 04/02/25 21:35 1<1.001,1,1,2-Tetrachloroethane 1.00 ug/L 04/02/25 21:35 1<1.001,1,2,2-Tetrachloroethane 1.00 ug/L 04/02/25 21:35 1<1.00Tetrachloroethene 10.0 ug/L 04/02/25 21:35 1<10.0Tetrahydrofuran 1.00 ug/L 04/02/25 21:35 1<1.00Toluene 5.00 ug/L 04/02/25 21:35 1<5.001,2,3-Trichlorobenzene 5.00 ug/L 04/02/25 21:35 1<5.001,2,4-Trichlorobenzene 1.00 ug/L 04/02/25 21:35 1<1.001,1,1-Trichloroethane 1.00 ug/L 04/02/25 21:35 1<1.001,1,2-Trichloroethane 1.00 ug/L 04/02/25 21:35 1<1.00Trichloroethene 4.00 ug/L 04/02/25 21:35 1<4.00Trichlorofluoromethane 1.00 ug/L 04/02/25 21:35 1<1.001,2,3-Trichloropropane 2.00 ug/L 04/02/25 21:35 1<2.001,1,2-Trichlorotrifluoroethane 1.00 ug/L 04/02/25 21:35 1<1.001,2,4-Trimethylbenzene 1.00 ug/L 04/02/25 21:35 1<1.001,3,5-Trimethylbenzene 1.00 ug/L 04/02/25 21:35 1<1.00Vinyl chloride 3.00 ug/L 04/02/25 21:35 1<3.00Xylenes, Total 4-Bromofluorobenzene (Surr)101 80 -120 04/02/25 21:35 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)108 04/02/25 21:35 173-130 Toluene-d8 (Surr)99 04/02/25 21:35 180-120 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) RL MDL <100 100 ug/L 04/02/25 06:42 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Wisconsin GRO 4-Bromofluorobenzene (Surr)89 80 -120 04/02/25 06:42 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Eurofins Cedar Falls Page 56 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Definitions/Glossary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Qualifiers GC/MS VOA Qualifier Description F1 MS and/or MSD recovery exceeds control limits. Qualifier F2 MS/MSD RPD exceeds control limits GC/MS Semi VOA Qualifier Description F1 MS and/or MSD recovery exceeds control limits. Qualifier S1-Surrogate recovery exceeds control limits, low biased. GC Semi VOA Qualifier Description F1 MS and/or MSD recovery exceeds control limits. Qualifier Metals Qualifier Description F1 MS and/or MSD recovery exceeds control limits. Qualifier Glossary These commonly used abbreviations may or may not be present in this report. ☼Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Cedar Falls Page 57 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Surrogate Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS Prep Type: Total/NAMatrix: Solid Lab Sample ID Client Sample ID (80-120)(80-120)(80-120) BFB DBFM TOL 106 99 101310-302899-D-1-B MS Percent Surrogate Recovery (Acceptance Limits) Matrix Spike 102 104 104310-302899-D-1-C MSD Matrix Spike Duplicate 99 100 105310-303002-E-1-E MS Matrix Spike 95 102 97310-303002-E-1-F MSD Matrix Spike Duplicate 97 97 100310-303009-1 EB-1 (2-4) 97 93 101310-303009-2 EB-1 (10-12) 100 94 102310-303009-3 EB-2 (2-4) 97 102 101310-303009-4 EB-2 (10-12) 96 94 97310-303009-5 EB-3 (4-6) 98 97 98310-303009-6 EB-3 (12-14) 99 93 100310-303009-7 EB-4 (4-6) 92 92 99310-303009-8 EB-4 (8-10) 101 99 102310-303009-8 MS EB-4 (8-10) 98 108 96310-303009-8 MSD EB-4 (8-10) 92 101 98310-303009-9 EB-5 (4-6) 100 98 99310-303009-10 EB-5 (10-12) 102 108 105310-303009-11 EB-6 (2-4) 96 97 99310-303009-12 EB-6 (8-10) 104 96 102310-303009-13 Trip Blank - Soil 102 104 101LCS 310-450413/2-A Lab Control Sample 100 102 98LCS 310-450780/2-A Lab Control Sample 92 98 97LCS 310-450782/2-A Lab Control Sample 102 99 102MB 310-450413/1-A Method Blank 103 100 98MB 310-450780/1-A Method Blank 99 96 98MB 310-450782/1-A Method Blank Surrogate Legend BFB = 4-Bromofluorobenzene (Surr) DBFM = Dibromofluoromethane (Surr) TOL = Toluene-d8 (Surr) Method: 8260D - Volatile Organic Compounds by GC/MS Prep Type: Total/NAMatrix: Water Lab Sample ID Client Sample ID (80-120)(73-130)(80-120) BFB DBFM TOL 102 99 100310-303003-D-12 MS Percent Surrogate Recovery (Acceptance Limits) Matrix Spike 104 99 98310-303003-D-12 MSD Matrix Spike Duplicate 98 108 98310-303009-14 EB-1 103 108 96310-303009-15 EB-3 101 108 99310-303009-16 Trip Blank - GW 101 99 100LCS 310-450517/7 Lab Control Sample 98 111 98LCS 310-450517/8 Lab Control Sample 100 108 99MB 310-450517/6 Method Blank Surrogate Legend BFB = 4-Bromofluorobenzene (Surr) DBFM = Dibromofluoromethane (Surr) TOL = Toluene-d8 (Surr) Eurofins Cedar Falls Page 58 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Surrogate Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) Prep Type: Total/NAMatrix: Solid Lab Sample ID Client Sample ID (28-116)(15-131)(24-132) FBP NBZ TPHL 87 102 88310-302655-B-5-E MS Percent Surrogate Recovery (Acceptance Limits) Matrix Spike 81 115 86310-302655-B-5-F MSD Matrix Spike Duplicate 83 99 89310-303009-1 EB-1 (2-4) 75 91 84310-303009-2 EB-1 (10-12) 99 109 104310-303009-3 EB-2 (2-4) 68 14 S1-80310-303009-4 EB-2 (10-12) 77 89 90310-303009-5 EB-3 (4-6) 91 88 94310-303009-6 EB-3 (12-14) 88 107 102310-303009-7 EB-4 (4-6) 72 92 82310-303009-8 EB-4 (8-10) 96 131 113310-303009-9 EB-5 (4-6) 64 23 70310-303009-10 EB-5 (10-12) 86 117 107310-303009-11 EB-6 (2-4) 64 91 82310-303009-12 EB-6 (8-10) 97 111 101LCS 310-450458/2-A Lab Control Sample 103 125 109MB 310-450458/1-A Method Blank Surrogate Legend FBP = 2-Fluorobiphenyl (Surr) NBZ = Nitrobenzene-d5 (Surr) TPHL = Terphenyl-d14 (Surr) Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) Prep Type: Total/NAMatrix: Water Lab Sample ID Client Sample ID (39-118)(45-129)(12-144) FBP NBZ TPHL 30 S1-30 S1-21310-303003-F-12-A MS Percent Surrogate Recovery (Acceptance Limits) Matrix Spike 41 45 23310-303003-F-12-B MSD Matrix Spike Duplicate 56 55 45310-303009-14 EB-1 86 73 82310-303009-15 EB-3 96 82 94LCS 310-450572/2-A Lab Control Sample 76 67 75MB 310-450572/1-A Method Blank Surrogate Legend FBP = 2-Fluorobiphenyl (Surr) NBZ = Nitrobenzene-d5 (Surr) TPHL = Terphenyl-d14 (Surr) Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) Prep Type: Total/NAMatrix: Solid Lab Sample ID Client Sample ID (80-120) BFB 107310-303009-1 Percent Surrogate Recovery (Acceptance Limits) EB-1 (2-4) 109310-303009-2 EB-1 (10-12) 104310-303009-3 EB-2 (2-4) 116310-303009-4 EB-2 (10-12) 115310-303009-5 EB-3 (4-6) 106310-303009-6 EB-3 (12-14) Eurofins Cedar Falls Page 59 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Surrogate Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) (Continued) Prep Type: Total/NAMatrix: Solid Lab Sample ID Client Sample ID (80-120) BFB 107310-303009-7 Percent Surrogate Recovery (Acceptance Limits) EB-4 (4-6) 105310-303009-8 EB-4 (8-10) 103310-303009-9 EB-5 (4-6) 106310-303009-10 EB-5 (10-12) 107310-303009-11 EB-6 (2-4) 106310-303009-12 EB-6 (8-10) 109310-303009-13 Trip Blank - Soil 117LCS 310-450219/2-A Lab Control Sample 105LCS 310-450220/2-A Lab Control Sample 104LCS 310-450330/2-A Lab Control Sample 104LCS 310-450443/2-A Lab Control Sample 106LCSD 310-450219/23-A Lab Control Sample Dup 104LCSD 310-450220/23-A Lab Control Sample Dup 119LCSD 310-450330/26-A Lab Control Sample Dup 107LCSD 310-450443/25-A Lab Control Sample Dup 115MB 310-450219/1-A Method Blank 118MB 310-450220/1-A Method Blank 108MB 310-450330/1-A Method Blank 105MB 310-450443/1-A Method Blank 107MB 310-450450/1-A Method Blank Surrogate Legend BFB = 4-Bromofluorobenzene (Surr) Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) Prep Type: Total/NAMatrix: Water Lab Sample ID Client Sample ID (80-120) BFB 95310-303003-C-12 MS Percent Surrogate Recovery (Acceptance Limits) Matrix Spike 98310-303003-C-12 MSD Matrix Spike Duplicate 90310-303009-14 EB-1 88310-303009-15 EB-3 89310-303009-16 Trip Blank - GW 97LCS 310-450392/1 Lab Control Sample 94LCSD 310-450392/26 Lab Control Sample Dup 92MB 310-450392/2 Method Blank Surrogate Legend BFB = 4-Bromofluorobenzene (Surr) Eurofins Cedar Falls Page 60 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS Client Sample ID: Method BlankLab Sample ID: MB 310-450413/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450532 Prep Batch: 450413 RL MDL Acetone <0.476 0.476 mg/Kg 04/02/25 07:00 04/03/25 08:25 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Allyl chloride <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Benzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Bromobenzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Bromochloromethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Bromodichloromethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Bromoform <0.476 0.476 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Bromomethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Butylbenzene, n- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Butylbenzene, sec- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Butylbenzene, tert- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Carbon tetrachloride <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Chlorobenzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Chloroethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Chloroform <0.238 0.238 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Chloromethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 12-Chlorotoluene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 14-Chlorotoluene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dibromo-3-chloropropane, 1,2- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dibromochloromethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dibromoethane, 1,2- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dibromomethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichlorobenzene, 1,2- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichlorobenzene, 1,3- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichlorobenzene, 1,4- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichlorodifluoromethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloroethane, 1,1- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloroethane, 1,2- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloroethylene, 1,1- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloroethylene, cis-1,2- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloroethylene, trans-1,2 <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichlorofluoromethane <0.238 0.238 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloromethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloropropane, 1,2- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloropropane, 1,3- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloropropane, 2,2- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloropropene, 1,1- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloropropene, cis 1,3- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Dichloropropene, trans 1,3- <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Ethyl ether <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Ethylbenzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Hexachlorobutadiene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Isopropylbenzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1p-Isopropyltoluene <0.714 0.714 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Methyl ethyl ketone (MEK) <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 14-Methyl-2-pentanone (MIBK) <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Methyl tert-butyl ether <0.238 0.238 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Naphthalene Eurofins Cedar Falls Page 61 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Method BlankLab Sample ID: MB 310-450413/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450532 Prep Batch: 450413 RL MDL Propylbenzene, n-<0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Styrene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,1,1,2-Tetrachloroethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,1,2,2-Tetrachloroethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Tetrachloroethene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Tetrahydrofuran <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Toluene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,2,3-Trichlorobenzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,2,4-Trichlorobenzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,1,1-Trichloroethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,1,2-Trichloroethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Trichloroethene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Trichlorofluoromethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,2,3-Trichloropropane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,1,2-Trichlorotrifluoroethane <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,2,4-Trimethylbenzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 11,3,5-Trimethylbenzene <0.0951 0.0951 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Vinyl chloride <0.143 0.143 mg/Kg 04/02/25 07:00 04/03/25 08:25 1Xylenes, Total 4-Bromofluorobenzene (Surr)102 80 -120 04/03/25 08:25 1 MB MB Surrogate 04/02/25 07:00 Dil FacPreparedAnalyzedQualifierLimits%Recovery 99 04/02/25 07:00 04/03/25 08:25 1Dibromofluoromethane (Surr)80 -120 102 04/02/25 07:00 04/03/25 08:25 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450413/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450532 Prep Batch: 450413 Acetone 1.89 1.843 mg/Kg 98 50 -150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Allyl chloride 0.944 0.9972 mg/Kg 106 50 -150 Benzene 0.944 1.026 mg/Kg 109 80 -127 Bromobenzene 0.944 1.018 mg/Kg 108 80 -129 Bromochloromethane 0.944 0.9570 mg/Kg 101 79 -141 Bromodichloromethane 0.944 0.9435 mg/Kg 100 72 -126 Bromoform 0.944 0.9642 mg/Kg 102 56 -140 Butylbenzene, n-0.944 0.9149 mg/Kg 97 71 -127 Butylbenzene, sec-0.944 0.9226 mg/Kg 98 76 -125 Butylbenzene, tert-0.944 0.9751 mg/Kg 103 78 -124 Carbon tetrachloride 0.944 1.005 mg/Kg 106 74 -134 Chlorobenzene 0.944 0.9552 mg/Kg 101 80 -123 Chloroform 0.944 0.9176 mg/Kg 97 78 -128 2-Chlorotoluene 0.944 0.9547 mg/Kg 101 80 -123 4-Chlorotoluene 0.944 1.019 mg/Kg 108 79 -122 Dibromo-3-chloropropane, 1,2-0.944 0.8791 mg/Kg 93 50 -150 Dibromochloromethane 0.944 0.9424 mg/Kg 100 70 -127 Dibromoethane, 1,2-0.944 0.9659 mg/Kg 102 80 -126 Eurofins Cedar Falls Page 62 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450413/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450532 Prep Batch: 450413 Dibromomethane 0.944 0.9928 mg/Kg 105 78 -133 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Dichlorobenzene, 1,2-0.944 0.9483 mg/Kg 100 80 -123 Dichlorobenzene, 1,3-0.944 0.9299 mg/Kg 98 80 -124 Dichlorobenzene, 1,4-0.944 0.9035 mg/Kg 96 79 -122 Dichloroethane, 1,1-0.944 1.010 mg/Kg 107 75 -133 Dichloroethane, 1,2-0.944 0.9954 mg/Kg 105 74 -135 Dichloroethylene, 1,1-0.944 0.9964 mg/Kg 106 72 -136 Dichloroethylene, cis-1,2-0.944 1.000 mg/Kg 106 80 -131 Dichloroethylene, trans-1,2 0.944 0.9927 mg/Kg 105 75 -134 Dichloromethane 0.944 1.005 mg/Kg 106 50 -150 Dichloropropane, 1,2-0.944 1.009 mg/Kg 107 80 -130 Dichloropropane, 1,3-0.944 1.015 mg/Kg 107 79 -130 Dichloropropane, 2,2-0.944 1.026 mg/Kg 109 50 -150 Dichloropropene, 1,1-0.944 0.9500 mg/Kg 101 80 -131 Dichloropropene, cis 1,3-0.944 0.9723 mg/Kg 103 77 -127 Dichloropropene, trans 1,3-0.944 0.9573 mg/Kg 101 74 -125 Ethyl ether 0.944 0.9552 mg/Kg 101 71 -139 Ethylbenzene 0.944 0.9489 mg/Kg 100 80 -123 Hexachlorobutadiene 0.944 0.9402 mg/Kg 100 50 -150 Isopropylbenzene 0.944 0.9848 mg/Kg 104 80 -125 p-Isopropyltoluene 0.944 0.9179 mg/Kg 97 76 -125 Methyl ethyl ketone (MEK)1.89 1.836 mg/Kg 97 50 -150 4-Methyl-2-pentanone (MIBK)1.89 1.978 mg/Kg 105 67 -136 Methyl tert-butyl ether 0.944 0.9712 mg/Kg 103 72 -136 Naphthalene 0.944 0.9616 mg/Kg 102 50 -150 Propylbenzene, n-0.944 0.9564 mg/Kg 101 79 -125 Styrene 0.944 0.9413 mg/Kg 100 79 -124 1,1,1,2-Tetrachloroethane 0.944 0.9921 mg/Kg 105 78 -127 1,1,2,2-Tetrachloroethane 0.944 0.9922 mg/Kg 105 74 -131 Tetrachloroethene 0.944 0.9876 mg/Kg 105 80 -134 Tetrahydrofuran 1.89 1.997 mg/Kg 106 65 -141 Toluene 0.944 0.9681 mg/Kg 103 78 -126 1,2,3-Trichlorobenzene 0.944 0.9052 mg/Kg 96 50 -150 1,2,4-Trichlorobenzene 0.944 0.9840 mg/Kg 104 74 -130 1,1,1-Trichloroethane 0.944 0.9824 mg/Kg 104 77 -134 1,1,2-Trichloroethane 0.944 0.9893 mg/Kg 105 80 -127 Trichloroethene 0.944 0.9825 mg/Kg 104 80 -130 1,2,3-Trichloropropane 0.944 0.9858 mg/Kg 104 75 -134 1,1,2-Trichlorotrifluoroethane 0.944 1.051 mg/Kg 111 66 -150 1,2,4-Trimethylbenzene 0.944 0.9131 mg/Kg 97 73 -130 1,3,5-Trimethylbenzene 0.944 0.9247 mg/Kg 98 76 -124 Xylenes, Total 1.89 1.951 mg/Kg 103 80 -125 4-Bromofluorobenzene (Surr)80 -120 Surrogate 102 LCS LCS Qualifier Limits%Recovery 104Dibromofluoromethane (Surr)80 -120 101Toluene-d8 (Surr)80 -120 Eurofins Cedar Falls Page 63 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix SpikeLab Sample ID: 310-302899-D-1-B MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450532 Prep Batch: 450413 Acetone <0.888 2.59 2.862 mg/Kg 111 13 -150☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Allyl chloride <0.178 1.29 1.484 mg/Kg 115 19 -150☼ Benzene <0.178 1.29 1.500 mg/Kg 116 27 -150☼ Bromobenzene <0.178 1.29 1.579 mg/Kg 122 30 -150☼ Bromochloromethane <0.178 1.29 1.393 mg/Kg 108 31 -150☼ Bromodichloromethane <0.178 1.29 1.440 mg/Kg 111 20 -150☼ Bromoform <0.178 1.29 1.382 mg/Kg 107 18 -150☼ Butylbenzene, n-<0.178 F1 1.29 1.965 F1 mg/Kg 152 10 -150☼ Butylbenzene, sec-<0.178 1.29 1.515 mg/Kg 117 21 -150☼ Butylbenzene, tert-<0.178 1.29 1.534 mg/Kg 119 28 -150☼ Carbon tetrachloride <0.178 1.29 1.541 mg/Kg 119 23 -150☼ Chlorobenzene <0.178 1.29 1.441 mg/Kg 111 32 -150☼ Chloroform <0.178 1.29 1.422 mg/Kg 110 28 -150☼ 2-Chlorotoluene <0.178 1.29 1.805 mg/Kg 139 22 -150☼ 4-Chlorotoluene <0.178 1.29 1.604 mg/Kg 124 19 -150☼ Dibromo-3-chloropropane, 1,2-<0.178 1.29 1.400 mg/Kg 108 16 -150☼ Dibromochloromethane <0.178 1.29 1.444 mg/Kg 112 24 -145☼ Dibromoethane, 1,2-<0.178 1.29 1.495 mg/Kg 116 31 -150☼ Dibromomethane <0.178 1.29 1.437 mg/Kg 111 30 -150☼ Dichlorobenzene, 1,2-<0.178 1.29 1.496 mg/Kg 116 28 -150☼ Dichlorobenzene, 1,3-<0.178 1.29 1.458 mg/Kg 113 29 -150☼ Dichlorobenzene, 1,4-<0.178 1.29 1.455 mg/Kg 112 29 -150☼ Dichloroethane, 1,1-<0.178 1.29 1.588 mg/Kg 123 27 -150☼ Dichloroethane, 1,2-<0.178 1.29 1.519 mg/Kg 117 27 -150☼ Dichloroethylene, 1,1-<0.178 1.29 1.406 mg/Kg 109 20 -150☼ Dichloroethylene, cis-1,2-<0.178 1.29 1.434 mg/Kg 111 31 -150☼ Dichloroethylene, trans-1,2 <0.178 1.29 1.416 mg/Kg 109 25 -150☼ Dichloromethane <0.444 1.29 1.530 mg/Kg 118 17 -150☼ Dichloropropane, 1,2-<0.178 1.29 1.500 mg/Kg 116 32 -150☼ Dichloropropane, 1,3-<0.178 1.29 1.459 mg/Kg 113 31 -150☼ Dichloropropane, 2,2-<0.178 1.29 1.413 mg/Kg 109 10 -150☼ Dichloropropene, 1,1-<0.178 1.29 1.446 mg/Kg 112 31 -150☼ Dichloropropene, cis 1,3-<0.178 1.29 1.459 mg/Kg 113 27 -146☼ Dichloropropene, trans 1,3-<0.178 1.29 1.471 mg/Kg 114 25 -145☼ Ethyl ether <0.178 1.29 1.387 mg/Kg 107 21 -150☼ Ethylbenzene <0.178 1.29 1.520 mg/Kg 117 20 -150☼ Hexachlorobutadiene <0.178 1.29 1.355 mg/Kg 105 11 -150☼ Isopropylbenzene <0.178 1.29 1.539 mg/Kg 119 25 -150☼ p-Isopropyltoluene <0.178 1.29 1.517 mg/Kg 117 19 -150☼ Methyl ethyl ketone (MEK)<1.33 2.59 2.855 mg/Kg 110 23 -150☼ 4-Methyl-2-pentanone (MIBK)<0.178 F1 2.59 4.407 F1 mg/Kg 170 21 -150☼ Methyl tert-butyl ether <0.178 1.29 1.412 mg/Kg 109 22 -150☼ Naphthalene <0.444 F1 1.29 2.248 F1 mg/Kg 174 10 -150☼ Propylbenzene, n-<0.178 1.29 1.713 mg/Kg 132 16 -150☼ Styrene <0.178 1.29 1.505 mg/Kg 116 27 -150☼ 1,1,1,2-Tetrachloroethane <0.178 1.29 1.578 mg/Kg 122 28 -150☼ 1,1,2,2-Tetrachloroethane <0.178 1.29 1.528 mg/Kg 118 19 -150☼ Tetrachloroethene <0.178 1.29 1.443 mg/Kg 112 31 -150☼ Eurofins Cedar Falls Page 64 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix SpikeLab Sample ID: 310-302899-D-1-B MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450532 Prep Batch: 450413 Tetrahydrofuran <0.178 2.59 2.881 mg/Kg 111 22 -150☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Toluene <0.178 1.29 1.455 mg/Kg 112 24 -150☼ 1,2,3-Trichlorobenzene <0.178 1.29 1.464 mg/Kg 113 19 -150☼ 1,2,4-Trichlorobenzene <0.178 1.29 1.439 mg/Kg 111 21 -150☼ 1,1,1-Trichloroethane <0.178 1.29 1.439 mg/Kg 111 29 -150☼ 1,1,2-Trichloroethane <0.178 1.29 1.461 mg/Kg 113 25 -150☼ Trichloroethene <0.178 1.29 1.498 mg/Kg 116 33 -150☼ 1,2,3-Trichloropropane <0.178 1.29 1.458 mg/Kg 113 24 -150☼ 1,1,2-Trichlorotrifluoroethane <0.178 1.29 1.437 mg/Kg 111 19 -150☼ 1,2,4-Trimethylbenzene <0.178 F2 F1 1.29 3.336 F1 mg/Kg 258 10 -150☼ 1,3,5-Trimethylbenzene <0.178 F1 1.29 2.182 F1 mg/Kg 169 17 -150☼ Xylenes, Total <0.266 2.59 3.537 mg/Kg 137 18 -150☼ 4-Bromofluorobenzene (Surr)80 -120 Surrogate 106 MS MS Qualifier Limits%Recovery 99Dibromofluoromethane (Surr)80 -120 101Toluene-d8 (Surr)80 -120 Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-302899-D-1-C MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450532 Prep Batch: 450413 Acetone <0.888 2.46 2.926 mg/Kg 119 13 -150 2 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Allyl chloride <0.178 1.23 1.432 mg/Kg 116 19 -150 4 40☼ Benzene <0.178 1.23 1.470 mg/Kg 119 27 -150 2 40☼ Bromobenzene <0.178 1.23 1.465 mg/Kg 119 30 -150 7 40☼ Bromochloromethane <0.178 1.23 1.319 mg/Kg 107 31 -150 5 40☼ Bromodichloromethane <0.178 1.23 1.413 mg/Kg 115 20 -150 2 40☼ Bromoform <0.178 1.23 1.376 mg/Kg 112 18 -150 0 40☼ Butylbenzene, n-<0.178 F1 1.23 1.623 mg/Kg 132 10 -150 19 40☼ Butylbenzene, sec-<0.178 1.23 1.495 mg/Kg 121 21 -150 1 40☼ Butylbenzene, tert-<0.178 1.23 1.506 mg/Kg 122 28 -150 2 40☼ Carbon tetrachloride <0.178 1.23 1.392 mg/Kg 113 23 -150 10 40☼ Chlorobenzene <0.178 1.23 1.442 mg/Kg 117 32 -150 0 40☼ Chloroform <0.178 1.23 1.362 mg/Kg 111 28 -150 4 40☼ 2-Chlorotoluene <0.178 1.23 1.518 mg/Kg 123 22 -150 17 40☼ 4-Chlorotoluene <0.178 1.23 1.481 mg/Kg 120 19 -150 8 40☼ Dibromo-3-chloropropane, 1,2-<0.178 1.23 1.562 mg/Kg 127 16 -150 11 40☼ Dibromochloromethane <0.178 1.23 1.423 mg/Kg 115 24 -145 1 40☼ Dibromoethane, 1,2-<0.178 1.23 1.517 mg/Kg 123 31 -150 1 40☼ Dibromomethane <0.178 1.23 1.398 mg/Kg 113 30 -150 3 40☼ Dichlorobenzene, 1,2-<0.178 1.23 1.469 mg/Kg 119 28 -150 2 40☼ Dichlorobenzene, 1,3-<0.178 1.23 1.444 mg/Kg 117 29 -150 1 40☼ Dichlorobenzene, 1,4-<0.178 1.23 1.461 mg/Kg 119 29 -150 0 40☼ Dichloroethane, 1,1-<0.178 1.23 1.522 mg/Kg 124 27 -150 4 40☼ Dichloroethane, 1,2-<0.178 1.23 1.420 mg/Kg 115 27 -150 7 40☼ Dichloroethylene, 1,1-<0.178 1.23 1.344 mg/Kg 109 20 -150 5 40☼ Eurofins Cedar Falls Page 65 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-302899-D-1-C MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450532 Prep Batch: 450413 Dichloroethylene, cis-1,2-<0.178 1.23 1.455 mg/Kg 118 31 -150 1 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Dichloroethylene, trans-1,2 <0.178 1.23 1.346 mg/Kg 109 25 -150 5 40☼ Dichloromethane <0.444 1.23 1.544 mg/Kg 125 17 -150 1 40☼ Dichloropropane, 1,2-<0.178 1.23 1.449 mg/Kg 118 32 -150 3 40☼ Dichloropropane, 1,3-<0.178 1.23 1.438 mg/Kg 117 31 -150 1 40☼ Dichloropropane, 2,2-<0.178 1.23 1.354 mg/Kg 110 10 -150 4 40☼ Dichloropropene, 1,1-<0.178 1.23 1.360 mg/Kg 110 31 -150 6 40☼ Dichloropropene, cis 1,3-<0.178 1.23 1.418 mg/Kg 115 27 -146 3 40☼ Dichloropropene, trans 1,3-<0.178 1.23 1.448 mg/Kg 118 25 -145 2 40☼ Ethyl ether <0.178 1.23 1.316 mg/Kg 107 21 -150 5 40☼ Ethylbenzene <0.178 1.23 1.477 mg/Kg 120 20 -150 3 40☼ Hexachlorobutadiene <0.178 1.23 1.451 mg/Kg 118 11 -150 7 40☼ Isopropylbenzene <0.178 1.23 1.487 mg/Kg 121 25 -150 3 40☼ p-Isopropyltoluene <0.178 1.23 1.519 mg/Kg 123 19 -150 0 40☼ Methyl ethyl ketone (MEK)<1.33 2.46 2.665 mg/Kg 108 23 -150 7 40☼ 4-Methyl-2-pentanone (MIBK)<0.178 F1 2.46 3.321 mg/Kg 135 21 -150 28 40☼ Methyl tert-butyl ether <0.178 1.23 1.409 mg/Kg 114 22 -150 0 40☼ Naphthalene <0.444 F1 1.23 1.710 mg/Kg 139 10 -150 27 40☼ Propylbenzene, n-<0.178 1.23 1.463 mg/Kg 119 16 -150 16 40☼ Styrene <0.178 1.23 1.446 mg/Kg 117 27 -150 4 40☼ 1,1,1,2-Tetrachloroethane <0.178 1.23 1.528 mg/Kg 124 28 -150 3 40☼ 1,1,2,2-Tetrachloroethane <0.178 1.23 1.454 mg/Kg 118 19 -150 5 40☼ Tetrachloroethene <0.178 1.23 1.449 mg/Kg 118 31 -150 0 40☼ Tetrahydrofuran <0.178 2.46 2.927 mg/Kg 119 22 -150 2 40☼ Toluene <0.178 1.23 1.405 mg/Kg 114 24 -150 4 40☼ 1,2,3-Trichlorobenzene <0.178 1.23 1.507 mg/Kg 122 19 -150 3 40☼ 1,2,4-Trichlorobenzene <0.178 1.23 1.567 mg/Kg 127 21 -150 8 40☼ 1,1,1-Trichloroethane <0.178 1.23 1.373 mg/Kg 111 29 -150 5 40☼ 1,1,2-Trichloroethane <0.178 1.23 1.480 mg/Kg 120 25 -150 1 40☼ Trichloroethene <0.178 1.23 1.360 mg/Kg 110 33 -150 10 40☼ 1,2,3-Trichloropropane <0.178 1.23 1.440 mg/Kg 117 24 -150 1 40☼ 1,1,2-Trichlorotrifluoroethane <0.178 1.23 1.390 mg/Kg 113 19 -150 3 40☼ 1,2,4-Trimethylbenzene <0.178 F2 F1 1.23 1.693 F2 mg/Kg 137 10 -150 65 40☼ 1,3,5-Trimethylbenzene <0.178 F1 1.23 1.553 mg/Kg 126 17 -150 34 40☼ Xylenes, Total <0.266 2.46 2.993 mg/Kg 121 18 -150 17 40☼ 4-Bromofluorobenzene (Surr)80 -120 Surrogate 102 MSD MSD Qualifier Limits%Recovery 104Dibromofluoromethane (Surr)80 -120 104Toluene-d8 (Surr)80 -120 Client Sample ID: Method BlankLab Sample ID: MB 310-450517/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 RL MDL Acetone <10.0 10.0 ug/L 04/02/25 19:42 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <2.00 2.00 ug/L 04/02/25 19:42 1Allyl chloride Eurofins Cedar Falls Page 66 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Method BlankLab Sample ID: MB 310-450517/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 RL MDL Benzene <0.500 0.500 ug/L 04/02/25 19:42 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <1.00 1.00 ug/L 04/02/25 19:42 1Bromobenzene <5.00 5.00 ug/L 04/02/25 19:42 1Bromochloromethane <1.00 1.00 ug/L 04/02/25 19:42 1Bromodichloromethane <5.00 5.00 ug/L 04/02/25 19:42 1Bromoform <4.00 4.00 ug/L 04/02/25 19:42 1Bromomethane <1.00 1.00 ug/L 04/02/25 19:42 1Butylbenzene, n- <1.00 1.00 ug/L 04/02/25 19:42 1Butylbenzene, sec- <1.00 1.00 ug/L 04/02/25 19:42 1Butylbenzene, tert- <2.00 2.00 ug/L 04/02/25 19:42 1Carbon tetrachloride <1.00 1.00 ug/L 04/02/25 19:42 1Chlorobenzene <4.00 4.00 ug/L 04/02/25 19:42 1Chloroethane <3.00 3.00 ug/L 04/02/25 19:42 1Chloroform <3.00 3.00 ug/L 04/02/25 19:42 1Chloromethane <1.00 1.00 ug/L 04/02/25 19:42 12-Chlorotoluene <1.00 1.00 ug/L 04/02/25 19:42 14-Chlorotoluene <5.00 5.00 ug/L 04/02/25 19:42 1Dibromo-3-chloropropane, 1,2- <5.00 5.00 ug/L 04/02/25 19:42 1Dibromochloromethane <1.00 1.00 ug/L 04/02/25 19:42 1Dibromoethane, 1,2- <1.00 1.00 ug/L 04/02/25 19:42 1Dibromomethane <1.00 1.00 ug/L 04/02/25 19:42 1Dichlorobenzene, 1,2- <1.00 1.00 ug/L 04/02/25 19:42 1Dichlorobenzene, 1,3- <1.00 1.00 ug/L 04/02/25 19:42 1Dichlorobenzene, 1,4- <3.00 3.00 ug/L 04/02/25 19:42 1Dichlorodifluoromethane <1.00 1.00 ug/L 04/02/25 19:42 1Dichloroethane, 1,1- <1.00 1.00 ug/L 04/02/25 19:42 1Dichloroethane, 1,2- <2.00 2.00 ug/L 04/02/25 19:42 1Dichloroethylene, 1,1- <1.00 1.00 ug/L 04/02/25 19:42 1Dichloroethylene, cis-1,2- <1.00 1.00 ug/L 04/02/25 19:42 1Dichloroethylene, trans-1,2 <1.00 1.00 ug/L 04/02/25 19:42 1Dichlorofluoromethane <5.00 5.00 ug/L 04/02/25 19:42 1Dichloromethane <1.00 1.00 ug/L 04/02/25 19:42 1Dichloropropane, 1,2- <1.00 1.00 ug/L 04/02/25 19:42 1Dichloropropane, 1,3- <4.00 4.00 ug/L 04/02/25 19:42 1Dichloropropane, 2,2- <1.00 1.00 ug/L 04/02/25 19:42 1Dichloropropene, 1,1- <5.00 5.00 ug/L 04/02/25 19:42 1Dichloropropene, cis 1,3- <5.00 5.00 ug/L 04/02/25 19:42 1Dichloropropene, trans 1,3- <2.00 2.00 ug/L 04/02/25 19:42 1Diethyl ether <1.00 1.00 ug/L 04/02/25 19:42 1Ethylbenzene <5.00 5.00 ug/L 04/02/25 19:42 1Hexachlorobutadiene <1.00 1.00 ug/L 04/02/25 19:42 1Isopropylbenzene <1.00 1.00 ug/L 04/02/25 19:42 1p-Isopropyltoluene <10.0 10.0 ug/L 04/02/25 19:42 1Methyl ethyl ketone (MEK) <10.0 10.0 ug/L 04/02/25 19:42 14-Methyl-2-pentanone (MIBK) <1.00 1.00 ug/L 04/02/25 19:42 1Methyl tert-butyl ether <5.00 5.00 ug/L 04/02/25 19:42 1Naphthalene <1.00 1.00 ug/L 04/02/25 19:42 1Propylbenzene, n- <1.00 1.00 ug/L 04/02/25 19:42 1Styrene <1.00 1.00 ug/L 04/02/25 19:42 11,1,1,2-Tetrachloroethane Eurofins Cedar Falls Page 67 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Method BlankLab Sample ID: MB 310-450517/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 RL MDL 1,1,2,2-Tetrachloroethane <1.00 1.00 ug/L 04/02/25 19:42 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <1.00 1.00 ug/L 04/02/25 19:42 1Tetrachloroethene <10.0 10.0 ug/L 04/02/25 19:42 1Tetrahydrofuran <1.00 1.00 ug/L 04/02/25 19:42 1Toluene <5.00 5.00 ug/L 04/02/25 19:42 11,2,3-Trichlorobenzene <5.00 5.00 ug/L 04/02/25 19:42 11,2,4-Trichlorobenzene <1.00 1.00 ug/L 04/02/25 19:42 11,1,1-Trichloroethane <1.00 1.00 ug/L 04/02/25 19:42 11,1,2-Trichloroethane <1.00 1.00 ug/L 04/02/25 19:42 1Trichloroethene <4.00 4.00 ug/L 04/02/25 19:42 1Trichlorofluoromethane <1.00 1.00 ug/L 04/02/25 19:42 11,2,3-Trichloropropane <2.00 2.00 ug/L 04/02/25 19:42 11,1,2-Trichlorotrifluoroethane <1.00 1.00 ug/L 04/02/25 19:42 11,2,4-Trimethylbenzene <1.00 1.00 ug/L 04/02/25 19:42 11,3,5-Trimethylbenzene <1.00 1.00 ug/L 04/02/25 19:42 1Vinyl chloride <3.00 3.00 ug/L 04/02/25 19:42 1Xylenes, Total 4-Bromofluorobenzene (Surr)100 80 -120 04/02/25 19:42 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 108 04/02/25 19:42 1Dibromofluoromethane (Surr)73 -130 99 04/02/25 19:42 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450517/7 Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 Acetone 40.0 41.00 ug/L 103 50 -150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Allyl chloride 20.0 17.08 ug/L 85 49 -150 Benzene 20.0 19.92 ug/L 100 72 -124 Bromobenzene 20.0 19.46 ug/L 97 72 -120 Bromochloromethane 20.0 22.55 ug/L 113 73 -130 Bromodichloromethane 20.0 20.18 ug/L 101 74 -122 Bromoform 20.0 17.99 ug/L 90 61 -122 Butylbenzene, n-20.0 18.82 ug/L 94 67 -131 Butylbenzene, sec-20.0 17.23 ug/L 86 70 -127 Butylbenzene, tert-20.0 17.25 ug/L 86 72 -124 Carbon tetrachloride 20.0 19.76 ug/L 99 67 -132 Chlorobenzene 20.0 19.66 ug/L 98 76 -120 Chloroform 20.0 21.52 ug/L 108 72 -125 2-Chlorotoluene 20.0 19.11 ug/L 96 73 -121 4-Chlorotoluene 20.0 18.82 ug/L 94 72 -121 Dibromo-3-chloropropane, 1,2-20.0 19.64 ug/L 98 50 -150 Dibromochloromethane 20.0 19.32 ug/L 97 71 -121 Dibromoethane, 1,2-20.0 20.03 ug/L 100 75 -125 Dibromomethane 20.0 19.78 ug/L 99 74 -125 Dichlorobenzene, 1,2-20.0 19.92 ug/L 100 74 -120 Dichlorobenzene, 1,3-20.0 18.95 ug/L 95 72 -120 Eurofins Cedar Falls Page 68 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450517/7 Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 Dichlorobenzene, 1,4-20.0 18.96 ug/L 95 72 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Dichloroethane, 1,1-20.0 21.37 ug/L 107 70 -127 Dichloroethane, 1,2-20.0 20.81 ug/L 104 71 -125 Dichloroethylene, 1,1-20.0 20.59 ug/L 103 63 -132 Dichloroethylene, cis-1,2-20.0 21.21 ug/L 106 74 -123 Dichloroethylene, trans-1,2 20.0 20.90 ug/L 105 70 -126 Dichloromethane 20.0 22.15 ug/L 111 50 -150 Dichloropropane, 1,2-20.0 20.27 ug/L 101 73 -124 Dichloropropane, 1,3-20.0 19.86 ug/L 99 72 -125 Dichloropropane, 2,2-20.0 19.82 ug/L 99 50 -150 Dichloropropene, 1,1-20.0 19.60 ug/L 98 69 -132 Dichloropropene, cis 1,3-20.0 21.79 ug/L 109 71 -125 Dichloropropene, trans 1,3-20.0 18.27 ug/L 91 69 -123 Diethyl ether 20.0 20.22 ug/L 101 69 -132 Ethylbenzene 20.0 18.44 ug/L 92 74 -122 Hexachlorobutadiene 20.0 20.39 ug/L 102 50 -150 Isopropylbenzene 20.0 18.28 ug/L 91 73 -125 p-Isopropyltoluene 20.0 17.69 ug/L 88 70 -127 Methyl ethyl ketone (MEK)40.0 40.72 ug/L 102 50 -150 4-Methyl-2-pentanone (MIBK)40.0 43.22 ug/L 108 60 -139 Methyl tert-butyl ether 20.0 21.35 ug/L 107 68 -130 Naphthalene 20.0 18.45 ug/L 92 50 -150 Propylbenzene, n-20.0 18.87 ug/L 94 72 -126 Styrene 20.0 18.11 ug/L 91 74 -121 1,1,1,2-Tetrachloroethane 20.0 20.31 ug/L 102 71 -120 1,1,2,2-Tetrachloroethane 20.0 19.70 ug/L 99 68 -124 Tetrachloroethene 20.0 20.19 ug/L 101 71 -130 Tetrahydrofuran 40.0 36.69 ug/L 92 65 -133 Toluene 20.0 20.82 ug/L 104 74 -123 1,2,3-Trichlorobenzene 20.0 18.09 ug/L 90 50 -150 1,2,4-Trichlorobenzene 20.0 17.36 ug/L 87 68 -124 1,1,1-Trichloroethane 20.0 19.98 ug/L 100 73 -129 1,1,2-Trichloroethane 20.0 20.42 ug/L 102 73 -123 Trichloroethene 20.0 19.30 ug/L 96 72 -126 1,2,3-Trichloropropane 20.0 20.12 ug/L 101 65 -127 1,1,2-Trichlorotrifluoroethane 20.0 18.75 ug/L 94 58 -148 1,2,4-Trimethylbenzene 20.0 17.63 ug/L 88 73 -124 1,3,5-Trimethylbenzene 20.0 17.41 ug/L 87 73 -123 Xylenes, Total 40.0 36.72 ug/L 92 73 -123 4-Bromofluorobenzene (Surr)80 -120 Surrogate 101 LCS LCS Qualifier Limits%Recovery 99Dibromofluoromethane (Surr)73 -130 100Toluene-d8 (Surr)80 -120 Eurofins Cedar Falls Page 69 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450517/8 Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 Bromomethane 20.0 15.22 ug/L 76 23 -150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Chloroethane 20.0 17.54 ug/L 88 54 -136 Chloromethane 20.0 17.31 ug/L 87 38 -150 Dichlorodifluoromethane 20.0 19.11 ug/L 96 39 -150 Dichlorofluoromethane 20.0 18.12 ug/L 91 60 -135 Trichlorofluoromethane 20.0 18.84 ug/L 94 54 -149 Vinyl chloride 20.0 18.63 ug/L 93 56 -140 4-Bromofluorobenzene (Surr)80 -120 Surrogate 98 LCS LCS Qualifier Limits%Recovery 111Dibromofluoromethane (Surr)73 -130 98Toluene-d8 (Surr)80 -120 Client Sample ID: Matrix SpikeLab Sample ID: 310-303003-D-12 MS Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 Acetone <10.0 50.0 45.68 ug/L 91 31 -150 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Allyl chloride <2.00 25.0 21.62 ug/L 86 28 -150 Benzene <0.500 25.0 21.71 ug/L 87 46 -130 Bromobenzene <1.00 25.0 22.42 ug/L 90 57 -130 Bromochloromethane <5.00 25.0 25.73 ug/L 103 57 -130 Bromodichloromethane <1.00 25.0 22.11 ug/L 88 57 -130 Bromoform <5.00 25.0 19.32 ug/L 77 44 -130 Butylbenzene, n-<1.00 25.0 18.03 ug/L 72 45 -131 Butylbenzene, sec-<1.00 25.0 18.23 ug/L 73 48 -130 Butylbenzene, tert-<1.00 25.0 19.15 ug/L 77 52 -130 Carbon tetrachloride <2.00 25.0 22.10 ug/L 88 45 -132 Chlorobenzene <1.00 25.0 22.09 ug/L 88 59 -130 Chloroform <3.00 25.0 23.35 ug/L 93 51 -130 2-Chlorotoluene <1.00 25.0 21.97 ug/L 88 55 -130 4-Chlorotoluene <1.00 25.0 21.82 ug/L 87 50 -130 Dibromo-3-chloropropane, 1,2-<5.00 25.0 20.82 ug/L 83 38 -150 Dibromochloromethane <5.00 25.0 21.40 ug/L 86 54 -130 Dibromoethane, 1,2-<1.00 25.0 21.82 ug/L 87 60 -130 Dibromomethane <1.00 25.0 21.95 ug/L 88 59 -130 Dichlorobenzene, 1,2-<1.00 25.0 21.70 ug/L 87 59 -130 Dichlorobenzene, 1,3-<1.00 25.0 21.65 ug/L 87 57 -130 Dichlorobenzene, 1,4-<1.00 25.0 21.96 ug/L 88 57 -130 Dichloroethane, 1,1-<1.00 25.0 23.24 ug/L 93 49 -130 Dichloroethane, 1,2-<1.00 25.0 22.63 ug/L 91 51 -130 Dichloroethylene, 1,1-<2.00 25.0 22.96 ug/L 92 37 -132 Dichloroethylene, cis-1,2-<1.00 25.0 23.73 ug/L 95 45 -130 Dichloroethylene, trans-1,2 <1.00 25.0 23.39 ug/L 94 48 -130 Dichloromethane <5.00 25.0 25.20 ug/L 101 37 -150 Dichloropropane, 1,2-<1.00 25.0 22.14 ug/L 89 57 -130 Dichloropropane, 1,3-<1.00 25.0 21.91 ug/L 88 56 -130 Eurofins Cedar Falls Page 70 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix SpikeLab Sample ID: 310-303003-D-12 MS Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 Dichloropropane, 2,2-<4.00 25.0 19.41 ug/L 78 25 -150 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Dichloropropene, 1,1-<1.00 25.0 21.53 ug/L 86 50 -132 Dichloropropene, cis 1,3-<5.00 25.0 23.11 ug/L 92 53 -130 Dichloropropene, trans 1,3-<5.00 25.0 19.08 ug/L 76 50 -130 Diethyl ether <2.00 25.0 22.41 ug/L 90 48 -132 Ethylbenzene <1.00 25.0 20.36 ug/L 81 45 -130 Hexachlorobutadiene <5.00 F2 25.0 14.82 ug/L 59 28 -150 Isopropylbenzene <1.00 25.0 20.20 ug/L 81 46 -130 p-Isopropyltoluene <1.00 25.0 18.05 ug/L 72 50 -130 Methyl ethyl ketone (MEK)<10.0 50.0 41.23 ug/L 82 38 -150 4-Methyl-2-pentanone (MIBK)<10.0 50.0 47.78 ug/L 96 47 -139 Methyl tert-butyl ether <1.00 25.0 22.56 ug/L 90 52 -130 Naphthalene <5.00 25.0 19.73 ug/L 79 40 -150 Propylbenzene, n-<1.00 25.0 20.83 ug/L 83 47 -130 Styrene <1.00 25.0 20.88 ug/L 84 47 -130 1,1,1,2-Tetrachloroethane <1.00 25.0 21.91 ug/L 88 55 -130 1,1,2,2-Tetrachloroethane <1.00 25.0 20.99 ug/L 84 54 -130 Tetrachloroethene <1.00 25.0 21.65 ug/L 87 47 -130 Tetrahydrofuran <10.0 50.0 41.15 ug/L 82 42 -139 Toluene <1.00 25.0 23.18 ug/L 93 51 -130 1,2,3-Trichlorobenzene <5.00 25.0 17.83 ug/L 71 38 -150 1,2,4-Trichlorobenzene <5.00 25.0 17.15 ug/L 69 55 -130 1,1,1-Trichloroethane <1.00 25.0 21.28 ug/L 85 52 -130 1,1,2-Trichloroethane <1.00 25.0 22.54 ug/L 90 58 -130 Trichloroethene <1.00 25.0 21.22 ug/L 85 51 -130 1,2,3-Trichloropropane <1.00 25.0 21.16 ug/L 85 49 -130 1,1,2-Trichlorotrifluoroethane <2.00 25.0 23.52 ug/L 94 32 -148 1,2,4-Trimethylbenzene <1.00 25.0 19.56 ug/L 78 49 -130 1,3,5-Trimethylbenzene <1.00 25.0 19.39 ug/L 78 50 -130 Xylenes, Total <3.00 50.0 42.96 ug/L 86 43 -130 4-Bromofluorobenzene (Surr)80 -120 Surrogate 102 MS MS Qualifier Limits%Recovery 99Dibromofluoromethane (Surr)73 -130 100Toluene-d8 (Surr)80 -120 Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303003-D-12 MSD Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 Acetone <10.0 50.0 43.11 ug/L 86 31 -150 6 29 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Allyl chloride <2.00 25.0 16.88 ug/L 68 28 -150 25 35 Benzene <0.500 25.0 19.52 ug/L 78 46 -130 11 20 Bromobenzene <1.00 25.0 20.12 ug/L 80 57 -130 11 20 Bromochloromethane <5.00 25.0 22.64 ug/L 91 57 -130 13 20 Bromodichloromethane <1.00 25.0 19.86 ug/L 79 57 -130 11 20 Bromoform <5.00 25.0 18.01 ug/L 72 44 -130 7 20 Eurofins Cedar Falls Page 71 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303003-D-12 MSD Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 Butylbenzene, n-<1.00 25.0 16.58 ug/L 66 45 -131 8 20 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Butylbenzene, sec-<1.00 25.0 16.90 ug/L 68 48 -130 8 20 Butylbenzene, tert-<1.00 25.0 17.68 ug/L 71 52 -130 8 20 Carbon tetrachloride <2.00 25.0 20.27 ug/L 81 45 -132 9 20 Chlorobenzene <1.00 25.0 19.63 ug/L 79 59 -130 12 20 Chloroform <3.00 25.0 21.08 ug/L 84 51 -130 10 20 2-Chlorotoluene <1.00 25.0 19.67 ug/L 79 55 -130 11 20 4-Chlorotoluene <1.00 25.0 19.74 ug/L 79 50 -130 10 20 Dibromo-3-chloropropane, 1,2-<5.00 25.0 19.24 ug/L 77 38 -150 8 20 Dibromochloromethane <5.00 25.0 19.51 ug/L 78 54 -130 9 20 Dibromoethane, 1,2-<1.00 25.0 19.77 ug/L 79 60 -130 10 20 Dibromomethane <1.00 25.0 19.64 ug/L 79 59 -130 11 20 Dichlorobenzene, 1,2-<1.00 25.0 20.18 ug/L 81 59 -130 7 20 Dichlorobenzene, 1,3-<1.00 25.0 19.44 ug/L 78 57 -130 11 20 Dichlorobenzene, 1,4-<1.00 25.0 19.50 ug/L 78 57 -130 12 20 Dichloroethane, 1,1-<1.00 25.0 21.24 ug/L 85 49 -130 9 20 Dichloroethane, 1,2-<1.00 25.0 20.17 ug/L 81 51 -130 12 20 Dichloroethylene, 1,1-<2.00 25.0 21.06 ug/L 84 37 -132 9 26 Dichloroethylene, cis-1,2-<1.00 25.0 21.21 ug/L 85 45 -130 11 20 Dichloroethylene, trans-1,2 <1.00 25.0 20.62 ug/L 82 48 -130 13 22 Dichloromethane <5.00 25.0 22.12 ug/L 88 37 -150 13 24 Dichloropropane, 1,2-<1.00 25.0 20.11 ug/L 80 57 -130 10 20 Dichloropropane, 1,3-<1.00 25.0 19.55 ug/L 78 56 -130 11 20 Dichloropropane, 2,2-<4.00 25.0 17.51 ug/L 70 25 -150 10 25 Dichloropropene, 1,1-<1.00 25.0 19.63 ug/L 79 50 -132 9 20 Dichloropropene, cis 1,3-<5.00 25.0 21.21 ug/L 85 53 -130 9 20 Dichloropropene, trans 1,3-<5.00 25.0 17.60 ug/L 70 50 -130 8 20 Diethyl ether <2.00 25.0 20.70 ug/L 83 48 -132 8 20 Ethylbenzene <1.00 25.0 18.38 ug/L 74 45 -130 10 20 Hexachlorobutadiene <5.00 F2 25.0 11.48 F2 ug/L 46 28 -150 25 24 Isopropylbenzene <1.00 25.0 18.53 ug/L 74 46 -130 9 20 p-Isopropyltoluene <1.00 25.0 17.04 ug/L 68 50 -130 6 20 Methyl ethyl ketone (MEK)<10.0 50.0 40.87 ug/L 82 38 -150 1 20 4-Methyl-2-pentanone (MIBK)<10.0 50.0 44.54 ug/L 89 47 -139 7 20 Methyl tert-butyl ether <1.00 25.0 20.31 ug/L 81 52 -130 11 20 Naphthalene <5.00 25.0 18.26 ug/L 73 40 -150 8 30 Propylbenzene, n-<1.00 25.0 19.16 ug/L 77 47 -130 8 20 Styrene <1.00 25.0 18.92 ug/L 76 47 -130 10 20 1,1,1,2-Tetrachloroethane <1.00 25.0 20.01 ug/L 80 55 -130 9 20 1,1,2,2-Tetrachloroethane <1.00 25.0 18.97 ug/L 76 54 -130 10 20 Tetrachloroethene <1.00 25.0 20.02 ug/L 80 47 -130 8 20 Tetrahydrofuran <10.0 50.0 37.97 ug/L 76 42 -139 8 26 Toluene <1.00 25.0 21.23 ug/L 85 51 -130 9 20 1,2,3-Trichlorobenzene <5.00 25.0 16.92 ug/L 68 38 -150 5 21 1,2,4-Trichlorobenzene <5.00 25.0 15.95 ug/L 64 55 -130 7 20 1,1,1-Trichloroethane <1.00 25.0 19.59 ug/L 78 52 -130 8 20 1,1,2-Trichloroethane <1.00 25.0 20.38 ug/L 82 58 -130 10 20 Trichloroethene <1.00 25.0 18.19 ug/L 73 51 -130 15 20 1,2,3-Trichloropropane <1.00 25.0 19.15 ug/L 77 49 -130 10 26 Eurofins Cedar Falls Page 72 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303003-D-12 MSD Matrix: Water Prep Type: Total/NA Analysis Batch: 450517 1,1,2-Trichlorotrifluoroethane <2.00 25.0 21.96 ug/L 88 32 -148 7 20 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 1,2,4-Trimethylbenzene <1.00 25.0 17.96 ug/L 72 49 -130 9 25 1,3,5-Trimethylbenzene <1.00 25.0 17.95 ug/L 72 50 -130 8 32 Xylenes, Total <3.00 50.0 38.51 ug/L 77 43 -130 11 20 4-Bromofluorobenzene (Surr)80 -120 Surrogate 104 MSD MSD Qualifier Limits%Recovery 99Dibromofluoromethane (Surr)73 -130 98Toluene-d8 (Surr)80 -120 Client Sample ID: Method BlankLab Sample ID: MB 310-450780/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 RL MDL Acetone <0.478 0.478 mg/Kg 04/07/25 07:10 04/07/25 11:51 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Allyl chloride <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Benzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Bromobenzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Bromochloromethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Bromodichloromethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Bromoform <0.478 0.478 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Bromomethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Butylbenzene, n- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Butylbenzene, sec- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Butylbenzene, tert- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Carbon tetrachloride <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Chlorobenzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Chloroethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Chloroform <0.239 0.239 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Chloromethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 12-Chlorotoluene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 14-Chlorotoluene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dibromo-3-chloropropane, 1,2- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dibromochloromethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dibromoethane, 1,2- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dibromomethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichlorobenzene, 1,2- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichlorobenzene, 1,3- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichlorobenzene, 1,4- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichlorodifluoromethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloroethane, 1,1- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloroethane, 1,2- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloroethylene, 1,1- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloroethylene, cis-1,2- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloroethylene, trans-1,2 <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichlorofluoromethane <0.239 0.239 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloromethane Eurofins Cedar Falls Page 73 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Method BlankLab Sample ID: MB 310-450780/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 RL MDL Dichloropropane, 1,2-<0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloropropane, 1,3- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloropropane, 2,2- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloropropene, 1,1- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloropropene, cis 1,3- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Dichloropropene, trans 1,3- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Ethyl ether <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Ethylbenzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Hexachlorobutadiene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Isopropylbenzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1p-Isopropyltoluene <0.718 0.718 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Methyl ethyl ketone (MEK) <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 14-Methyl-2-pentanone (MIBK) <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Methyl tert-butyl ether <0.239 0.239 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Naphthalene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Propylbenzene, n- <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Styrene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,1,1,2-Tetrachloroethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,1,2,2-Tetrachloroethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Tetrachloroethene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Tetrahydrofuran <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Toluene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,2,3-Trichlorobenzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,2,4-Trichlorobenzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,1,1-Trichloroethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,1,2-Trichloroethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Trichloroethene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Trichlorofluoromethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,2,3-Trichloropropane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,1,2-Trichlorotrifluoroethane <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,2,4-Trimethylbenzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 11,3,5-Trimethylbenzene <0.0957 0.0957 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Vinyl chloride <0.144 0.144 mg/Kg 04/07/25 07:10 04/07/25 11:51 1Xylenes, Total 4-Bromofluorobenzene (Surr)103 80 -120 04/07/25 11:51 1 MB MB Surrogate 04/07/25 07:10 Dil FacPreparedAnalyzedQualifierLimits%Recovery 100 04/07/25 07:10 04/07/25 11:51 1Dibromofluoromethane (Surr)80 -120 98 04/07/25 07:10 04/07/25 11:51 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450780/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 Acetone 1.86 1.819 mg/Kg 98 50 -150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Allyl chloride 0.929 0.8847 mg/Kg 95 50 -150 Benzene 0.929 0.9182 mg/Kg 99 80 -127 Eurofins Cedar Falls Page 74 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450780/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 Bromobenzene 0.929 0.8606 mg/Kg 93 80 -129 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Bromochloromethane 0.929 0.9008 mg/Kg 97 79 -141 Bromodichloromethane 0.929 0.8669 mg/Kg 93 72 -126 Bromoform 0.929 0.9002 mg/Kg 97 56 -140 Butylbenzene, n-0.929 0.8844 mg/Kg 95 71 -127 Butylbenzene, sec-0.929 0.9055 mg/Kg 97 76 -125 Butylbenzene, tert-0.929 0.9118 mg/Kg 98 78 -124 Carbon tetrachloride 0.929 0.9145 mg/Kg 98 74 -134 Chlorobenzene 0.929 0.8806 mg/Kg 95 80 -123 Chloroform 0.929 0.8696 mg/Kg 94 78 -128 2-Chlorotoluene 0.929 0.8651 mg/Kg 93 80 -123 4-Chlorotoluene 0.929 0.9274 mg/Kg 100 79 -122 Dibromo-3-chloropropane, 1,2-0.929 0.8914 mg/Kg 96 50 -150 Dibromochloromethane 0.929 0.8811 mg/Kg 95 70 -127 Dibromoethane, 1,2-0.929 0.9006 mg/Kg 97 80 -126 Dibromomethane 0.929 0.8957 mg/Kg 96 78 -133 Dichlorobenzene, 1,2-0.929 0.9003 mg/Kg 97 80 -123 Dichlorobenzene, 1,3-0.929 0.9003 mg/Kg 97 80 -124 Dichlorobenzene, 1,4-0.929 0.8427 mg/Kg 91 79 -122 Dichloroethane, 1,1-0.929 0.8609 mg/Kg 93 75 -133 Dichloroethane, 1,2-0.929 0.8858 mg/Kg 95 74 -135 Dichloroethylene, 1,1-0.929 0.8608 mg/Kg 93 72 -136 Dichloroethylene, cis-1,2-0.929 0.8837 mg/Kg 95 80 -131 Dichloroethylene, trans-1,2 0.929 0.8649 mg/Kg 93 75 -134 Dichloromethane 0.929 0.8802 mg/Kg 95 50 -150 Dichloropropane, 1,2-0.929 0.9051 mg/Kg 97 80 -130 Dichloropropane, 1,3-0.929 0.9206 mg/Kg 99 79 -130 Dichloropropane, 2,2-0.929 0.9328 mg/Kg 100 50 -150 Dichloropropene, 1,1-0.929 0.8685 mg/Kg 94 80 -131 Dichloropropene, cis 1,3-0.929 0.8981 mg/Kg 97 77 -127 Dichloropropene, trans 1,3-0.929 0.9032 mg/Kg 97 74 -125 Ethyl ether 0.929 0.9103 mg/Kg 98 71 -139 Ethylbenzene 0.929 0.8832 mg/Kg 95 80 -123 Hexachlorobutadiene 0.929 0.9306 mg/Kg 100 50 -150 Isopropylbenzene 0.929 0.9028 mg/Kg 97 80 -125 p-Isopropyltoluene 0.929 0.9131 mg/Kg 98 76 -125 Methyl ethyl ketone (MEK)1.86 1.738 mg/Kg 94 50 -150 4-Methyl-2-pentanone (MIBK)1.86 1.825 mg/Kg 98 67 -136 Methyl tert-butyl ether 0.929 0.8844 mg/Kg 95 72 -136 Naphthalene 0.929 0.8688 mg/Kg 94 50 -150 Propylbenzene, n-0.929 0.8892 mg/Kg 96 79 -125 Styrene 0.929 0.8806 mg/Kg 95 79 -124 1,1,1,2-Tetrachloroethane 0.929 0.9486 mg/Kg 102 78 -127 1,1,2,2-Tetrachloroethane 0.929 0.9178 mg/Kg 99 74 -131 Tetrachloroethene 0.929 0.9065 mg/Kg 98 80 -134 Tetrahydrofuran 1.86 1.733 mg/Kg 93 65 -141 Toluene 0.929 0.8808 mg/Kg 95 78 -126 1,2,3-Trichlorobenzene 0.929 0.8604 mg/Kg 93 50 -150 1,2,4-Trichlorobenzene 0.929 0.8969 mg/Kg 97 74 -130 Eurofins Cedar Falls Page 75 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450780/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 1,1,1-Trichloroethane 0.929 0.8701 mg/Kg 94 77 -134 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,1,2-Trichloroethane 0.929 0.8742 mg/Kg 94 80 -127 Trichloroethene 0.929 0.9277 mg/Kg 100 80 -130 1,2,3-Trichloropropane 0.929 0.9175 mg/Kg 99 75 -134 1,1,2-Trichlorotrifluoroethane 0.929 1.016 mg/Kg 109 66 -150 1,2,4-Trimethylbenzene 0.929 0.8569 mg/Kg 92 73 -130 1,3,5-Trimethylbenzene 0.929 0.8698 mg/Kg 94 76 -124 Xylenes, Total 1.86 1.822 mg/Kg 98 80 -125 4-Bromofluorobenzene (Surr)80 -120 Surrogate 100 LCS LCS Qualifier Limits%Recovery 102Dibromofluoromethane (Surr)80 -120 98Toluene-d8 (Surr)80 -120 Client Sample ID: Matrix SpikeLab Sample ID: 310-303002-E-1-E MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 Acetone <0.653 2.38 2.311 mg/Kg 97 13 -150☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Allyl chloride <0.131 1.19 1.099 mg/Kg 92 19 -150☼ Benzene <0.131 1.19 1.212 mg/Kg 102 27 -150☼ Bromobenzene <0.131 1.19 1.218 mg/Kg 102 30 -150☼ Bromochloromethane <0.131 1.19 1.087 mg/Kg 91 31 -150☼ Bromodichloromethane <0.131 1.19 1.149 mg/Kg 97 20 -150☼ Bromoform <0.131 1.19 1.164 mg/Kg 98 18 -150☼ Butylbenzene, n-<0.131 1.19 1.117 mg/Kg 94 10 -150☼ Butylbenzene, sec-<0.131 1.19 1.165 mg/Kg 98 21 -150☼ Butylbenzene, tert-<0.131 1.19 1.212 mg/Kg 102 28 -150☼ Carbon tetrachloride <0.131 1.19 1.136 mg/Kg 95 23 -150☼ Chlorobenzene <0.131 1.19 1.181 mg/Kg 99 32 -150☼ Chloroform <0.131 1.19 1.140 mg/Kg 96 28 -150☼ 2-Chlorotoluene <0.131 1.19 1.159 mg/Kg 97 22 -150☼ 4-Chlorotoluene <0.131 1.19 1.185 mg/Kg 100 19 -150☼ Dibromo-3-chloropropane, 1,2-<0.131 1.19 1.163 mg/Kg 98 16 -150☼ Dibromochloromethane <0.131 1.19 1.173 mg/Kg 99 24 -145☼ Dibromoethane, 1,2-<0.131 1.19 1.205 mg/Kg 101 31 -150☼ Dibromomethane <0.131 1.19 1.160 mg/Kg 97 30 -150☼ Dichlorobenzene, 1,2-<0.131 1.19 1.206 mg/Kg 101 28 -150☼ Dichlorobenzene, 1,3-<0.131 1.19 1.202 mg/Kg 101 29 -150☼ Dichlorobenzene, 1,4-<0.131 1.19 1.206 mg/Kg 101 29 -150☼ Dichloroethane, 1,1-<0.131 1.19 1.136 mg/Kg 95 27 -150☼ Dichloroethane, 1,2-<0.131 1.19 1.110 mg/Kg 93 27 -150☼ Dichloroethylene, 1,1-<0.131 1.19 1.104 mg/Kg 93 20 -150☼ Dichloroethylene, cis-1,2-<0.131 1.19 1.134 mg/Kg 95 31 -150☼ Dichloroethylene, trans-1,2 <0.131 1.19 1.129 mg/Kg 95 25 -150☼ Dichloromethane <0.327 1.19 1.238 mg/Kg 104 17 -150☼ Dichloropropane, 1,2-<0.131 1.19 1.186 mg/Kg 100 32 -150☼ Eurofins Cedar Falls Page 76 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix SpikeLab Sample ID: 310-303002-E-1-E MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 Dichloropropane, 1,3-<0.131 1.19 1.239 mg/Kg 104 31 -150☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Dichloropropane, 2,2-<0.131 1.19 1.024 mg/Kg 86 10 -150☼ Dichloropropene, 1,1-<0.131 1.19 1.136 mg/Kg 95 31 -150☼ Dichloropropene, cis 1,3-<0.131 1.19 1.150 mg/Kg 97 27 -146☼ Dichloropropene, trans 1,3-<0.131 1.19 1.161 mg/Kg 98 25 -145☼ Ethyl ether <0.131 1.19 1.098 mg/Kg 92 21 -150☼ Ethylbenzene <0.131 1.19 1.170 mg/Kg 98 20 -150☼ Hexachlorobutadiene <0.131 1.19 1.087 mg/Kg 91 11 -150☼ Isopropylbenzene <0.131 1.19 1.185 mg/Kg 100 25 -150☼ p-Isopropyltoluene <0.131 1.19 1.183 mg/Kg 99 19 -150☼ Methyl ethyl ketone (MEK)<0.980 2.38 2.102 mg/Kg 88 23 -150☼ 4-Methyl-2-pentanone (MIBK)<0.131 2.38 2.342 mg/Kg 98 21 -150☼ Methyl tert-butyl ether <0.131 1.19 1.137 mg/Kg 96 22 -150☼ Naphthalene <0.327 1.19 1.163 mg/Kg 98 10 -150☼ Propylbenzene, n-<0.131 1.19 1.170 mg/Kg 98 16 -150☼ Styrene <0.131 1.19 1.212 mg/Kg 102 27 -150☼ 1,1,1,2-Tetrachloroethane <0.131 1.19 1.238 mg/Kg 104 28 -150☼ 1,1,2,2-Tetrachloroethane <0.131 1.19 1.222 mg/Kg 103 19 -150☼ Tetrachloroethene <0.131 1.19 1.201 mg/Kg 101 31 -150☼ Tetrahydrofuran <0.131 2.38 2.217 mg/Kg 93 22 -150☼ Toluene <0.131 1.19 1.181 mg/Kg 99 24 -150☼ 1,2,3-Trichlorobenzene <0.131 1.19 1.096 mg/Kg 92 19 -150☼ 1,2,4-Trichlorobenzene <0.131 1.19 1.177 mg/Kg 99 21 -150☼ 1,1,1-Trichloroethane <0.131 1.19 1.115 mg/Kg 94 29 -150☼ 1,1,2-Trichloroethane <0.131 1.19 1.187 mg/Kg 100 25 -150☼ Trichloroethene <0.131 1.19 1.185 mg/Kg 100 33 -150☼ 1,2,3-Trichloropropane <0.131 1.19 1.287 mg/Kg 108 24 -150☼ 1,1,2-Trichlorotrifluoroethane <0.131 1.19 1.228 mg/Kg 103 19 -150☼ 1,2,4-Trimethylbenzene <0.131 1.19 1.160 mg/Kg 98 10 -150☼ 1,3,5-Trimethylbenzene <0.131 1.19 1.123 mg/Kg 94 17 -150☼ Xylenes, Total <0.196 2.38 2.388 mg/Kg 100 18 -150☼ 4-Bromofluorobenzene (Surr)80 -120 Surrogate 99 MS MS Qualifier Limits%Recovery 100Dibromofluoromethane (Surr)80 -120 105Toluene-d8 (Surr)80 -120 Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303002-E-1-F MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 Acetone <0.653 2.34 2.383 mg/Kg 102 13 -150 3 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Allyl chloride <0.131 1.17 1.157 mg/Kg 99 19 -150 5 40☼ Benzene <0.131 1.17 1.263 mg/Kg 108 27 -150 4 40☼ Bromobenzene <0.131 1.17 1.249 mg/Kg 107 30 -150 3 40☼ Bromochloromethane <0.131 1.17 1.241 mg/Kg 106 31 -150 13 40☼ Bromodichloromethane <0.131 1.17 1.168 mg/Kg 100 20 -150 2 40☼ Eurofins Cedar Falls Page 77 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303002-E-1-F MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 Bromoform <0.131 1.17 1.199 mg/Kg 102 18 -150 3 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Butylbenzene, n-<0.131 1.17 1.206 mg/Kg 103 10 -150 8 40☼ Butylbenzene, sec-<0.131 1.17 1.302 mg/Kg 111 21 -150 11 40☼ Butylbenzene, tert-<0.131 1.17 1.380 mg/Kg 118 28 -150 13 40☼ Carbon tetrachloride <0.131 1.17 1.196 mg/Kg 102 23 -150 5 40☼ Chlorobenzene <0.131 1.17 1.255 mg/Kg 107 32 -150 6 40☼ Chloroform <0.131 1.17 1.213 mg/Kg 104 28 -150 6 40☼ 2-Chlorotoluene <0.131 1.17 1.177 mg/Kg 100 22 -150 2 40☼ 4-Chlorotoluene <0.131 1.17 1.221 mg/Kg 104 19 -150 3 40☼ Dibromo-3-chloropropane, 1,2-<0.131 1.17 1.220 mg/Kg 104 16 -150 5 40☼ Dibromochloromethane <0.131 1.17 1.228 mg/Kg 105 24 -145 5 40☼ Dibromoethane, 1,2-<0.131 1.17 1.203 mg/Kg 103 31 -150 0 40☼ Dibromomethane <0.131 1.17 1.229 mg/Kg 105 30 -150 6 40☼ Dichlorobenzene, 1,2-<0.131 1.17 1.268 mg/Kg 108 28 -150 5 40☼ Dichlorobenzene, 1,3-<0.131 1.17 1.245 mg/Kg 106 29 -150 4 40☼ Dichlorobenzene, 1,4-<0.131 1.17 1.227 mg/Kg 105 29 -150 2 40☼ Dichloroethane, 1,1-<0.131 1.17 1.283 mg/Kg 109 27 -150 12 40☼ Dichloroethane, 1,2-<0.131 1.17 1.231 mg/Kg 105 27 -150 10 40☼ Dichloroethylene, 1,1-<0.131 1.17 1.175 mg/Kg 100 20 -150 6 40☼ Dichloroethylene, cis-1,2-<0.131 1.17 1.213 mg/Kg 104 31 -150 7 40☼ Dichloroethylene, trans-1,2 <0.131 1.17 1.133 mg/Kg 97 25 -150 0 40☼ Dichloromethane <0.327 1.17 1.324 mg/Kg 113 17 -150 7 40☼ Dichloropropane, 1,2-<0.131 1.17 1.280 mg/Kg 109 32 -150 8 40☼ Dichloropropane, 1,3-<0.131 1.17 1.276 mg/Kg 109 31 -150 3 40☼ Dichloropropane, 2,2-<0.131 1.17 1.079 mg/Kg 92 10 -150 5 40☼ Dichloropropene, 1,1-<0.131 1.17 1.226 mg/Kg 105 31 -150 8 40☼ Dichloropropene, cis 1,3-<0.131 1.17 1.215 mg/Kg 104 27 -146 5 40☼ Dichloropropene, trans 1,3-<0.131 1.17 1.170 mg/Kg 100 25 -145 1 40☼ Ethyl ether <0.131 1.17 1.151 mg/Kg 98 21 -150 5 40☼ Ethylbenzene <0.131 1.17 1.218 mg/Kg 104 20 -150 4 40☼ Hexachlorobutadiene <0.131 1.17 1.266 mg/Kg 108 11 -150 15 40☼ Isopropylbenzene <0.131 1.17 1.254 mg/Kg 107 25 -150 6 40☼ p-Isopropyltoluene <0.131 1.17 1.291 mg/Kg 110 19 -150 9 40☼ Methyl ethyl ketone (MEK)<0.980 2.34 2.178 mg/Kg 93 23 -150 4 40☼ 4-Methyl-2-pentanone (MIBK)<0.131 2.34 2.444 mg/Kg 104 21 -150 4 40☼ Methyl tert-butyl ether <0.131 1.17 1.182 mg/Kg 101 22 -150 4 40☼ Naphthalene <0.327 1.17 1.264 mg/Kg 108 10 -150 8 40☼ Propylbenzene, n-<0.131 1.17 1.195 mg/Kg 102 16 -150 2 40☼ Styrene <0.131 1.17 1.193 mg/Kg 102 27 -150 2 40☼ 1,1,1,2-Tetrachloroethane <0.131 1.17 1.317 mg/Kg 112 28 -150 6 40☼ 1,1,2,2-Tetrachloroethane <0.131 1.17 1.248 mg/Kg 106 19 -150 2 40☼ Tetrachloroethene <0.131 1.17 1.188 mg/Kg 101 31 -150 1 40☼ Tetrahydrofuran <0.131 2.34 2.274 mg/Kg 97 22 -150 3 40☼ Toluene <0.131 1.17 1.220 mg/Kg 104 24 -150 3 40☼ 1,2,3-Trichlorobenzene <0.131 1.17 1.193 mg/Kg 102 19 -150 8 40☼ 1,2,4-Trichlorobenzene <0.131 1.17 1.304 mg/Kg 111 21 -150 10 40☼ 1,1,1-Trichloroethane <0.131 1.17 1.212 mg/Kg 103 29 -150 8 40☼ 1,1,2-Trichloroethane <0.131 1.17 1.187 mg/Kg 101 25 -150 0 40☼ Trichloroethene <0.131 1.17 1.253 mg/Kg 107 33 -150 5 40☼ Eurofins Cedar Falls Page 78 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303002-E-1-F MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450781 Prep Batch: 450780 1,2,3-Trichloropropane <0.131 1.17 1.237 mg/Kg 106 24 -150 4 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 1,1,2-Trichlorotrifluoroethane <0.131 1.17 1.220 mg/Kg 104 19 -150 1 40☼ 1,2,4-Trimethylbenzene <0.131 1.17 1.243 mg/Kg 106 10 -150 7 40☼ 1,3,5-Trimethylbenzene <0.131 1.17 1.250 mg/Kg 107 17 -150 11 40☼ Xylenes, Total <0.196 2.34 2.425 mg/Kg 104 18 -150 2 40☼ 4-Bromofluorobenzene (Surr)80 -120 Surrogate 95 MSD MSD Qualifier Limits%Recovery 102Dibromofluoromethane (Surr)80 -120 97Toluene-d8 (Surr)80 -120 Client Sample ID: Method BlankLab Sample ID: MB 310-450782/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 RL MDL Acetone <0.491 0.491 mg/Kg 04/07/25 07:20 04/07/25 22:32 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Allyl chloride <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Benzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Bromobenzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Bromochloromethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Bromodichloromethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Bromoform <0.491 0.491 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Bromomethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Butylbenzene, n- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Butylbenzene, sec- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Butylbenzene, tert- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Carbon tetrachloride <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Chlorobenzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Chloroethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Chloroform <0.246 0.246 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Chloromethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 12-Chlorotoluene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 14-Chlorotoluene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dibromo-3-chloropropane, 1,2- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dibromochloromethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dibromoethane, 1,2- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dibromomethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichlorobenzene, 1,2- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichlorobenzene, 1,3- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichlorobenzene, 1,4- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichlorodifluoromethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloroethane, 1,1- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloroethane, 1,2- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloroethylene, 1,1- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloroethylene, cis-1,2- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloroethylene, trans-1,2 <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichlorofluoromethane Eurofins Cedar Falls Page 79 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Method BlankLab Sample ID: MB 310-450782/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 RL MDL Dichloromethane <0.246 0.246 mg/Kg 04/07/25 07:20 04/07/25 22:32 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloropropane, 1,2- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloropropane, 1,3- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloropropane, 2,2- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloropropene, 1,1- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloropropene, cis 1,3- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Dichloropropene, trans 1,3- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Ethyl ether <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Ethylbenzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Hexachlorobutadiene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Isopropylbenzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1p-Isopropyltoluene <0.737 0.737 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Methyl ethyl ketone (MEK) <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 14-Methyl-2-pentanone (MIBK) <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Methyl tert-butyl ether <0.246 0.246 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Naphthalene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Propylbenzene, n- <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Styrene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,1,1,2-Tetrachloroethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,1,2,2-Tetrachloroethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Tetrachloroethene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Tetrahydrofuran <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Toluene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,2,3-Trichlorobenzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,2,4-Trichlorobenzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,1,1-Trichloroethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,1,2-Trichloroethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Trichloroethene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Trichlorofluoromethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,2,3-Trichloropropane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,1,2-Trichlorotrifluoroethane <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,2,4-Trimethylbenzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 11,3,5-Trimethylbenzene <0.0983 0.0983 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Vinyl chloride <0.147 0.147 mg/Kg 04/07/25 07:20 04/07/25 22:32 1Xylenes, Total 4-Bromofluorobenzene (Surr)99 80 -120 04/07/25 22:32 1 MB MB Surrogate 04/07/25 07:20 Dil FacPreparedAnalyzedQualifierLimits%Recovery 96 04/07/25 07:20 04/07/25 22:32 1Dibromofluoromethane (Surr)80 -120 98 04/07/25 07:20 04/07/25 22:32 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450782/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 Acetone 1.86 2.098 mg/Kg 113 50 -150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Allyl chloride 0.929 0.9557 mg/Kg 103 50 -150 Eurofins Cedar Falls Page 80 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450782/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 Benzene 0.929 1.034 mg/Kg 111 80 -127 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Bromobenzene 0.929 1.020 mg/Kg 110 80 -129 Bromochloromethane 0.929 1.015 mg/Kg 109 79 -141 Bromodichloromethane 0.929 0.9516 mg/Kg 102 72 -126 Bromoform 0.929 0.9494 mg/Kg 102 56 -140 Butylbenzene, n-0.929 1.014 mg/Kg 109 71 -127 Butylbenzene, sec-0.929 1.072 mg/Kg 115 76 -125 Butylbenzene, tert-0.929 1.086 mg/Kg 117 78 -124 Carbon tetrachloride 0.929 0.9919 mg/Kg 107 74 -134 Chlorobenzene 0.929 0.9870 mg/Kg 106 80 -123 Chloroform 0.929 0.9678 mg/Kg 104 78 -128 2-Chlorotoluene 0.929 0.9798 mg/Kg 105 80 -123 4-Chlorotoluene 0.929 1.007 mg/Kg 108 79 -122 Dibromo-3-chloropropane, 1,2-0.929 0.9795 mg/Kg 105 50 -150 Dibromochloromethane 0.929 0.9994 mg/Kg 108 70 -127 Dibromoethane, 1,2-0.929 0.9971 mg/Kg 107 80 -126 Dibromomethane 0.929 1.019 mg/Kg 110 78 -133 Dichlorobenzene, 1,2-0.929 1.043 mg/Kg 112 80 -123 Dichlorobenzene, 1,3-0.929 1.040 mg/Kg 112 80 -124 Dichlorobenzene, 1,4-0.929 1.034 mg/Kg 111 79 -122 Dichloroethane, 1,1-0.929 0.9621 mg/Kg 104 75 -133 Dichloroethane, 1,2-0.929 1.023 mg/Kg 110 74 -135 Dichloroethylene, 1,1-0.929 0.9934 mg/Kg 107 72 -136 Dichloroethylene, cis-1,2-0.929 0.9828 mg/Kg 106 80 -131 Dichloroethylene, trans-1,2 0.929 0.9542 mg/Kg 103 75 -134 Dichloromethane 0.929 1.026 mg/Kg 110 50 -150 Dichloropropane, 1,2-0.929 0.9887 mg/Kg 106 80 -130 Dichloropropane, 1,3-0.929 1.043 mg/Kg 112 79 -130 Dichloropropane, 2,2-0.929 0.9331 mg/Kg 100 50 -150 Dichloropropene, 1,1-0.929 0.9720 mg/Kg 105 80 -131 Dichloropropene, cis 1,3-0.929 0.9581 mg/Kg 103 77 -127 Dichloropropene, trans 1,3-0.929 0.9725 mg/Kg 105 74 -125 Ethyl ether 0.929 0.9872 mg/Kg 106 71 -139 Ethylbenzene 0.929 0.9838 mg/Kg 106 80 -123 Hexachlorobutadiene 0.929 1.083 mg/Kg 117 50 -150 Isopropylbenzene 0.929 1.010 mg/Kg 109 80 -125 p-Isopropyltoluene 0.929 1.055 mg/Kg 114 76 -125 Methyl ethyl ketone (MEK)1.86 1.820 mg/Kg 98 50 -150 4-Methyl-2-pentanone (MIBK)1.86 1.968 mg/Kg 106 67 -136 Methyl tert-butyl ether 0.929 0.9465 mg/Kg 102 72 -136 Naphthalene 0.929 1.032 mg/Kg 111 50 -150 Propylbenzene, n-0.929 0.9486 mg/Kg 102 79 -125 Styrene 0.929 0.9718 mg/Kg 105 79 -124 1,1,1,2-Tetrachloroethane 0.929 1.020 mg/Kg 110 78 -127 1,1,2,2-Tetrachloroethane 0.929 0.9981 mg/Kg 107 74 -131 Tetrachloroethene 0.929 0.9771 mg/Kg 105 80 -134 Tetrahydrofuran 1.86 1.976 mg/Kg 106 65 -141 Toluene 0.929 0.9830 mg/Kg 106 78 -126 1,2,3-Trichlorobenzene 0.929 1.018 mg/Kg 110 50 -150 Eurofins Cedar Falls Page 81 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450782/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 1,2,4-Trichlorobenzene 0.929 1.018 mg/Kg 110 74 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,1,1-Trichloroethane 0.929 0.9860 mg/Kg 106 77 -134 1,1,2-Trichloroethane 0.929 1.014 mg/Kg 109 80 -127 Trichloroethene 0.929 0.9764 mg/Kg 105 80 -130 1,2,3-Trichloropropane 0.929 1.008 mg/Kg 109 75 -134 1,1,2-Trichlorotrifluoroethane 0.929 1.100 mg/Kg 118 66 -150 1,2,4-Trimethylbenzene 0.929 1.036 mg/Kg 111 73 -130 1,3,5-Trimethylbenzene 0.929 1.030 mg/Kg 111 76 -124 Xylenes, Total 1.86 1.964 mg/Kg 106 80 -125 4-Bromofluorobenzene (Surr)80 -120 Surrogate 92 LCS LCS Qualifier Limits%Recovery 98Dibromofluoromethane (Surr)80 -120 97Toluene-d8 (Surr)80 -120 Client Sample ID: EB-4 (8-10)Lab Sample ID: 310-303009-8 MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 Acetone <0.540 1.94 1.875 mg/Kg 97 13 -150☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Allyl chloride <0.108 0.968 0.8705 mg/Kg 90 19 -150☼ Benzene <0.108 0.968 0.9090 mg/Kg 94 27 -150☼ Bromobenzene <0.108 0.968 0.9101 mg/Kg 94 30 -150☼ Bromochloromethane <0.108 0.968 0.8923 mg/Kg 92 31 -150☼ Bromodichloromethane <0.108 0.968 0.8443 mg/Kg 87 20 -150☼ Bromoform <0.108 0.968 0.8308 mg/Kg 86 18 -150☼ Butylbenzene, n-<0.108 0.968 0.7539 mg/Kg 73 10 -150☼ Butylbenzene, sec-<0.108 0.968 0.8224 mg/Kg 81 21 -150☼ Butylbenzene, tert-<0.108 0.968 0.8514 mg/Kg 85 28 -150☼ Carbon tetrachloride <0.108 0.968 0.8454 mg/Kg 87 23 -150☼ Chlorobenzene <0.108 0.968 0.9145 mg/Kg 94 32 -150☼ Chloroform <0.108 0.968 0.8567 mg/Kg 85 28 -150☼ 2-Chlorotoluene <0.108 0.968 0.8734 mg/Kg 90 22 -150☼ 4-Chlorotoluene <0.108 0.968 0.9106 mg/Kg 94 19 -150☼ Dibromo-3-chloropropane, 1,2-<0.108 0.968 0.7471 mg/Kg 77 16 -150☼ Dibromochloromethane <0.108 0.968 0.8539 mg/Kg 88 24 -145☼ Dibromoethane, 1,2-<0.108 0.968 0.8962 mg/Kg 93 31 -150☼ Dibromomethane <0.108 0.968 0.8492 mg/Kg 88 30 -150☼ Dichlorobenzene, 1,2-<0.108 0.968 0.8023 mg/Kg 83 28 -150☼ Dichlorobenzene, 1,3-<0.108 0.968 0.8059 mg/Kg 83 29 -150☼ Dichlorobenzene, 1,4-<0.108 0.968 0.8190 mg/Kg 85 29 -150☼ Dichloroethane, 1,1-<0.108 0.968 0.9259 mg/Kg 96 27 -150☼ Dichloroethane, 1,2-<0.108 0.968 0.8537 mg/Kg 88 27 -150☼ Dichloroethylene, 1,1-<0.108 0.968 0.8383 mg/Kg 87 20 -150☼ Dichloroethylene, cis-1,2-<0.108 0.968 0.8555 mg/Kg 88 31 -150☼ Dichloroethylene, trans-1,2 <0.108 0.968 0.8244 mg/Kg 85 25 -150☼ Dichloromethane <0.270 0.968 0.9025 mg/Kg 93 17 -150☼ Eurofins Cedar Falls Page 82 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: EB-4 (8-10)Lab Sample ID: 310-303009-8 MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 Dichloropropane, 1,2-<0.108 0.968 0.8443 mg/Kg 87 32 -150☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Dichloropropane, 1,3-<0.108 0.968 0.8945 mg/Kg 92 31 -150☼ Dichloropropane, 2,2-<0.108 0.968 0.7625 mg/Kg 79 10 -150☼ Dichloropropene, 1,1-<0.108 0.968 0.8229 mg/Kg 85 31 -150☼ Dichloropropene, cis 1,3-<0.108 0.968 0.8788 mg/Kg 91 27 -146☼ Dichloropropene, trans 1,3-<0.108 0.968 0.8540 mg/Kg 88 25 -145☼ Ethyl ether <0.108 0.968 0.8537 mg/Kg 88 21 -150☼ Ethylbenzene <0.108 0.968 0.8659 mg/Kg 89 20 -150☼ Hexachlorobutadiene <0.108 0.968 0.7594 mg/Kg 68 11 -150☼ Isopropylbenzene <0.108 0.968 0.8635 mg/Kg 89 25 -150☼ p-Isopropyltoluene <0.108 0.968 0.8076 mg/Kg 80 19 -150☼ Methyl ethyl ketone (MEK)<0.809 1.94 1.718 mg/Kg 89 23 -150☼ 4-Methyl-2-pentanone (MIBK)<0.108 1.94 1.735 mg/Kg 90 21 -150☼ Methyl tert-butyl ether <0.108 0.968 0.8200 mg/Kg 85 22 -150☼ Naphthalene <0.270 0.968 0.7559 mg/Kg 73 10 -150☼ Propylbenzene, n-<0.108 0.968 0.8568 mg/Kg 89 16 -150☼ Styrene <0.108 0.968 0.8593 mg/Kg 89 27 -150☼ 1,1,1,2-Tetrachloroethane <0.108 0.968 0.9204 mg/Kg 95 28 -150☼ 1,1,2,2-Tetrachloroethane <0.108 0.968 0.8600 mg/Kg 89 19 -150☼ Tetrachloroethene <0.108 0.968 0.8855 mg/Kg 91 31 -150☼ Tetrahydrofuran <0.108 1.94 1.765 mg/Kg 91 22 -150☼ Toluene <0.108 0.968 0.8642 mg/Kg 89 24 -150☼ 1,2,3-Trichlorobenzene <0.108 0.968 0.7348 mg/Kg 67 19 -150☼ 1,2,4-Trichlorobenzene <0.108 0.968 0.7870 mg/Kg 72 21 -150☼ 1,1,1-Trichloroethane <0.108 0.968 0.8412 mg/Kg 87 29 -150☼ 1,1,2-Trichloroethane <0.108 0.968 0.8653 mg/Kg 89 25 -150☼ Trichloroethene <0.108 0.968 0.8799 mg/Kg 91 33 -150☼ 1,2,3-Trichloropropane <0.108 0.968 0.8966 mg/Kg 93 24 -150☼ 1,1,2-Trichlorotrifluoroethane <0.108 0.968 0.8674 mg/Kg 90 19 -150☼ 1,2,4-Trimethylbenzene <0.108 0.968 0.7904 mg/Kg 82 10 -150☼ 1,3,5-Trimethylbenzene <0.108 0.968 0.7984 mg/Kg 82 17 -150☼ Xylenes, Total <0.162 1.94 1.760 mg/Kg 91 18 -150☼ 4-Bromofluorobenzene (Surr)80 -120 Surrogate 101 MS MS Qualifier Limits%Recovery 99Dibromofluoromethane (Surr)80 -120 102Toluene-d8 (Surr)80 -120 Client Sample ID: EB-4 (8-10)Lab Sample ID: 310-303009-8 MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 Acetone <0.540 2.06 2.204 mg/Kg 107 13 -150 16 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Allyl chloride <0.108 1.03 1.022 mg/Kg 99 19 -150 16 40☼ Benzene <0.108 1.03 1.040 mg/Kg 101 27 -150 13 40☼ Bromobenzene <0.108 1.03 0.9389 mg/Kg 91 30 -150 3 40☼ Bromochloromethane <0.108 1.03 1.013 mg/Kg 98 31 -150 13 40☼ Eurofins Cedar Falls Page 83 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: EB-4 (8-10)Lab Sample ID: 310-303009-8 MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 Bromodichloromethane <0.108 1.03 0.8956 mg/Kg 87 20 -150 6 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Bromoform <0.108 1.03 0.8893 mg/Kg 86 18 -150 7 40☼ Butylbenzene, n-<0.108 1.03 0.9389 mg/Kg 86 10 -150 22 40☼ Butylbenzene, sec-<0.108 1.03 1.005 mg/Kg 94 21 -150 20 40☼ Butylbenzene, tert-<0.108 1.03 1.022 mg/Kg 96 28 -150 18 40☼ Carbon tetrachloride <0.108 1.03 1.018 mg/Kg 99 23 -150 19 40☼ Chlorobenzene <0.108 1.03 0.9721 mg/Kg 94 32 -150 6 40☼ Chloroform <0.108 1.03 1.037 mg/Kg 97 28 -150 19 40☼ 2-Chlorotoluene <0.108 1.03 0.9519 mg/Kg 92 22 -150 9 40☼ 4-Chlorotoluene <0.108 1.03 0.9637 mg/Kg 93 19 -150 6 40☼ Dibromo-3-chloropropane, 1,2-<0.108 1.03 0.8812 mg/Kg 85 16 -150 16 40☼ Dibromochloromethane <0.108 1.03 0.9740 mg/Kg 94 24 -145 13 40☼ Dibromoethane, 1,2-<0.108 1.03 1.018 mg/Kg 99 31 -150 13 40☼ Dibromomethane <0.108 1.03 1.030 mg/Kg 100 30 -150 19 40☼ Dichlorobenzene, 1,2-<0.108 1.03 1.020 mg/Kg 99 28 -150 24 40☼ Dichlorobenzene, 1,3-<0.108 1.03 0.9776 mg/Kg 95 29 -150 19 40☼ Dichlorobenzene, 1,4-<0.108 1.03 1.001 mg/Kg 97 29 -150 20 40☼ Dichloroethane, 1,1-<0.108 1.03 1.028 mg/Kg 100 27 -150 10 40☼ Dichloroethane, 1,2-<0.108 1.03 1.002 mg/Kg 97 27 -150 16 40☼ Dichloroethylene, 1,1-<0.108 1.03 0.9813 mg/Kg 95 20 -150 16 40☼ Dichloroethylene, cis-1,2-<0.108 1.03 0.9741 mg/Kg 94 31 -150 13 40☼ Dichloroethylene, trans-1,2 <0.108 1.03 0.9764 mg/Kg 95 25 -150 17 40☼ Dichloromethane <0.270 1.03 1.060 mg/Kg 103 17 -150 16 40☼ Dichloropropane, 1,2-<0.108 1.03 0.9742 mg/Kg 94 32 -150 14 40☼ Dichloropropane, 1,3-<0.108 1.03 1.015 mg/Kg 98 31 -150 13 40☼ Dichloropropane, 2,2-<0.108 1.03 0.8736 mg/Kg 85 10 -150 14 40☼ Dichloropropene, 1,1-<0.108 1.03 1.005 mg/Kg 97 31 -150 20 40☼ Dichloropropene, cis 1,3-<0.108 1.03 0.9236 mg/Kg 90 27 -146 5 40☼ Dichloropropene, trans 1,3-<0.108 1.03 0.9330 mg/Kg 91 25 -145 9 40☼ Ethyl ether <0.108 1.03 1.006 mg/Kg 98 21 -150 16 40☼ Ethylbenzene <0.108 1.03 0.9773 mg/Kg 95 20 -150 12 40☼ Hexachlorobutadiene <0.108 1.03 1.024 mg/Kg 90 11 -150 30 40☼ Isopropylbenzene <0.108 1.03 0.9818 mg/Kg 95 25 -150 13 40☼ p-Isopropyltoluene <0.108 1.03 0.9973 mg/Kg 94 19 -150 21 40☼ Methyl ethyl ketone (MEK)<0.809 2.06 1.943 mg/Kg 94 23 -150 12 40☼ 4-Methyl-2-pentanone (MIBK)<0.108 2.06 2.002 mg/Kg 97 21 -150 14 40☼ Methyl tert-butyl ether <0.108 1.03 0.9985 mg/Kg 97 22 -150 20 40☼ Naphthalene <0.270 1.03 1.003 mg/Kg 93 10 -150 28 40☼ Propylbenzene, n-<0.108 1.03 0.9374 mg/Kg 91 16 -150 9 40☼ Styrene <0.108 1.03 0.9266 mg/Kg 90 27 -150 8 40☼ 1,1,1,2-Tetrachloroethane <0.108 1.03 0.9815 mg/Kg 95 28 -150 6 40☼ 1,1,2,2-Tetrachloroethane <0.108 1.03 0.9781 mg/Kg 95 19 -150 13 40☼ Tetrachloroethene <0.108 1.03 0.9740 mg/Kg 94 31 -150 10 40☼ Tetrahydrofuran <0.108 2.06 2.111 mg/Kg 102 22 -150 18 40☼ Toluene <0.108 1.03 0.9834 mg/Kg 95 24 -150 13 40☼ 1,2,3-Trichlorobenzene <0.108 1.03 0.9671 mg/Kg 86 19 -150 27 40☼ 1,2,4-Trichlorobenzene <0.108 1.03 1.013 mg/Kg 89 21 -150 25 40☼ 1,1,1-Trichloroethane <0.108 1.03 0.9962 mg/Kg 97 29 -150 17 40☼ 1,1,2-Trichloroethane <0.108 1.03 0.9812 mg/Kg 95 25 -150 13 40☼ Eurofins Cedar Falls Page 84 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8260D - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: EB-4 (8-10)Lab Sample ID: 310-303009-8 MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450785 Prep Batch: 450782 Trichloroethene <0.108 1.03 1.019 mg/Kg 99 33 -150 15 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 1,2,3-Trichloropropane <0.108 1.03 1.006 mg/Kg 98 24 -150 12 40☼ 1,1,2-Trichlorotrifluoroethane <0.108 1.03 1.047 mg/Kg 102 19 -150 19 40☼ 1,2,4-Trimethylbenzene <0.108 1.03 0.9793 mg/Kg 95 10 -150 21 40☼ 1,3,5-Trimethylbenzene <0.108 1.03 0.9404 mg/Kg 91 17 -150 16 40☼ Xylenes, Total <0.162 2.06 1.938 mg/Kg 94 18 -150 10 40☼ 4-Bromofluorobenzene (Surr)80 -120 Surrogate 98 MSD MSD Qualifier Limits%Recovery 108Dibromofluoromethane (Surr)80 -120 96Toluene-d8 (Surr)80 -120 Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) Client Sample ID: Method BlankLab Sample ID: MB 310-450458/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450564 Prep Batch: 450458 RL MDL 2-Methylnaphthalene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Acenaphthene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Acenaphthylene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Anthracene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Benzo(a)anthracene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Benzo(a)pyrene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Benzo(b)fluoranthene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Benzo(g,h,i)perylene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Benzo(k)fluoranthene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Chrysene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Dibenz(a,h)anthracene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Fluoranthene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Fluorene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Indeno(1,2,3-cd)pyrene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Naphthalene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Phenanthrene <0.00468 0.00468 mg/Kg 04/02/25 10:08 04/03/25 12:31 1Pyrene 2-Fluorobiphenyl (Surr)103 28 -116 04/03/25 12:31 1 MB MB Surrogate 04/02/25 10:08 Dil FacPreparedAnalyzedQualifierLimits%Recovery 125 04/02/25 10:08 04/03/25 12:31 1Nitrobenzene-d5 (Surr)15 -131 109 04/02/25 10:08 04/03/25 12:31 1Terphenyl-d14 (Surr)24 -132 Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450458/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450564 Prep Batch: 450458 2-Methylnaphthalene 0.126 0.1263 mg/Kg 100 37 -110 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Eurofins Cedar Falls Page 85 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450458/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450564 Prep Batch: 450458 Acenaphthene 0.126 0.1241 mg/Kg 99 40 -110 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Acenaphthylene 0.126 0.1205 mg/Kg 96 37 -110 Anthracene 0.126 0.1009 mg/Kg 80 43 -110 Benzo(a)anthracene 0.126 0.1040 mg/Kg 83 42 -110 Benzo(a)pyrene 0.126 0.09341 mg/Kg 74 38 -116 Benzo(b)fluoranthene 0.126 0.09786 mg/Kg 78 42 -114 Benzo(g,h,i)perylene 0.126 0.1017 mg/Kg 81 34 -116 Benzo(k)fluoranthene 0.126 0.1001 mg/Kg 80 36 -118 Chrysene 0.126 0.1100 mg/Kg 87 43 -110 Dibenz(a,h)anthracene 0.126 0.1027 mg/Kg 82 33 -121 Fluoranthene 0.126 0.1155 mg/Kg 92 39 -110 Fluorene 0.126 0.1266 mg/Kg 101 40 -110 Indeno(1,2,3-cd)pyrene 0.126 0.09871 mg/Kg 79 34 -120 Naphthalene 0.126 0.1195 mg/Kg 95 33 -110 Phenanthrene 0.126 0.09832 mg/Kg 78 42 -110 Pyrene 0.126 0.1179 mg/Kg 94 40 -113 2-Fluorobiphenyl (Surr)28 -116 Surrogate 97 LCS LCS Qualifier Limits%Recovery 111Nitrobenzene-d5 (Surr)15 -131 101Terphenyl-d14 (Surr)24 -132 Client Sample ID: Matrix SpikeLab Sample ID: 310-302655-B-5-E MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450564 Prep Batch: 450458 2-Methylnaphthalene 0.0464 0.137 0.1766 mg/Kg 95 14 -112☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Acenaphthene 0.0122 0.137 0.1216 mg/Kg 80 20 -111☼ Acenaphthylene <0.00484 0.137 0.1154 mg/Kg 81 23 -110☼ Anthracene 0.00998 0.137 0.1133 mg/Kg 76 22 -110☼ Benzo(a)anthracene 0.0209 0.137 0.1389 mg/Kg 86 16 -117☼ Benzo(a)pyrene 0.0203 0.137 0.1101 mg/Kg 66 13 -118☼ Benzo(b)fluoranthene 0.0312 0.137 0.1078 mg/Kg 56 13 -120☼ Benzo(g,h,i)perylene 0.0807 0.137 0.2074 mg/Kg 93 12 -117☼ Benzo(k)fluoranthene <0.00484 0.137 0.08457 mg/Kg 62 16 -118☼ Chrysene 0.0616 0.137 0.1514 mg/Kg 66 17 -116☼ Dibenz(a,h)anthracene 0.0180 0.137 0.1424 mg/Kg 91 12 -122☼ Fluoranthene 0.0240 0.137 0.1462 mg/Kg 88 14 -118☼ Fluorene 0.0186 0.137 0.1378 mg/Kg 87 23 -110☼ Indeno(1,2,3-cd)pyrene 0.0218 0.137 0.1380 mg/Kg 85 10 -129☼ Naphthalene 0.0106 0.137 0.1305 mg/Kg 88 20 -110☼ Phenanthrene 0.0580 0.137 0.1670 mg/Kg 80 17 -116☼ Pyrene 0.0874 0.137 0.2236 mg/Kg 86 11 -123☼ 2-Fluorobiphenyl (Surr)28 -116 Surrogate 87 MS MS Qualifier Limits%Recovery 102Nitrobenzene-d5 (Surr)15 -131 Eurofins Cedar Falls Page 86 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) (Continued) Client Sample ID: Matrix SpikeLab Sample ID: 310-302655-B-5-E MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450564 Prep Batch: 450458 Terphenyl-d14 (Surr)24 -132 Surrogate 88 MS MS Qualifier Limits%Recovery Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-302655-B-5-F MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450564 Prep Batch: 450458 2-Methylnaphthalene 0.0464 0.132 0.1619 mg/Kg 87 14 -112 9 40☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Acenaphthene 0.0122 0.132 0.1344 mg/Kg 92 20 -111 10 40☼ Acenaphthylene <0.00484 0.132 0.1253 mg/Kg 91 23 -110 8 40☼ Anthracene 0.00998 0.132 0.1121 mg/Kg 77 22 -110 1 40☼ Benzo(a)anthracene 0.0209 0.132 0.1296 mg/Kg 82 16 -117 7 40☼ Benzo(a)pyrene 0.0203 0.132 0.09896 mg/Kg 59 13 -118 11 40☼ Benzo(b)fluoranthene 0.0312 0.132 0.1005 mg/Kg 52 13 -120 7 40☼ Benzo(g,h,i)perylene 0.0807 0.132 0.1647 mg/Kg 63 12 -117 23 40☼ Benzo(k)fluoranthene <0.00484 0.132 0.07812 mg/Kg 59 16 -118 8 40☼ Chrysene 0.0616 0.132 0.1340 mg/Kg 55 17 -116 12 40☼ Dibenz(a,h)anthracene 0.0180 0.132 0.1198 mg/Kg 77 12 -122 17 40☼ Fluoranthene 0.0240 0.132 0.1389 mg/Kg 86 14 -118 5 40☼ Fluorene 0.0186 0.132 0.1488 mg/Kg 98 23 -110 8 40☼ Indeno(1,2,3-cd)pyrene 0.0218 0.132 0.1199 mg/Kg 74 10 -129 14 40☼ Naphthalene 0.0106 0.132 0.1263 mg/Kg 87 20 -110 3 40☼ Phenanthrene 0.0580 0.132 0.1608 mg/Kg 78 17 -116 4 40☼ Pyrene 0.0874 0.132 0.2113 mg/Kg 79 11 -123 6 40☼ 2-Fluorobiphenyl (Surr)28 -116 Surrogate 81 MSD MSD Qualifier Limits%Recovery 115Nitrobenzene-d5 (Surr)15 -131 86Terphenyl-d14 (Surr)24 -132 Client Sample ID: Method BlankLab Sample ID: MB 310-450572/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 450552 Prep Batch: 450572 RL MDL 2-Methylnaphthalene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Acenaphthene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Acenaphthylene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Anthracene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Benzo(a)anthracene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Benzo(a)pyrene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Benzo(b)fluoranthene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Benzo(g,h,i)perylene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Benzo(k)fluoranthene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Chrysene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Dibenz(a,h)anthracene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Fluoranthene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Fluorene Eurofins Cedar Falls Page 87 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) (Continued) Client Sample ID: Method BlankLab Sample ID: MB 310-450572/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 450552 Prep Batch: 450572 RL MDL Indeno(1,2,3-cd)pyrene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Naphthalene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Phenanthrene <0.0983 0.0983 ug/L 04/03/25 09:40 04/03/25 17:08 1Pyrene 2-Fluorobiphenyl (Surr)76 39 -118 04/03/25 17:08 1 MB MB Surrogate 04/03/25 09:40 Dil FacPreparedAnalyzedQualifierLimits%Recovery 67 04/03/25 09:40 04/03/25 17:08 1Nitrobenzene-d5 (Surr)45 -129 75 04/03/25 09:40 04/03/25 17:08 1Terphenyl-d14 (Surr)12 -144 Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450572/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 450552 Prep Batch: 450572 2-Methylnaphthalene 2.77 2.467 ug/L 89 33 -110 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Acenaphthene 2.77 2.713 ug/L 98 43 -110 Acenaphthylene 2.77 2.698 ug/L 97 40 -110 Anthracene 2.77 2.831 ug/L 102 51 -120 Benzo(a)anthracene 2.77 2.460 ug/L 89 51 -123 Benzo(a)pyrene 2.77 2.384 ug/L 86 48 -125 Benzo(b)fluoranthene 2.77 2.918 ug/L 105 49 -129 Benzo(g,h,i)perylene 2.77 2.880 ug/L 104 43 -139 Benzo(k)fluoranthene 2.77 2.686 ug/L 97 47 -130 Chrysene 2.77 2.818 ug/L 102 51 -125 Dibenz(a,h)anthracene 2.77 2.866 ug/L 103 38 -149 Fluoranthene 2.77 2.593 ug/L 94 47 -128 Fluorene 2.77 2.523 ug/L 91 45 -119 Indeno(1,2,3-cd)pyrene 2.77 2.771 ug/L 100 37 -150 Naphthalene 2.77 2.608 ug/L 94 38 -110 Phenanthrene 2.77 2.974 ug/L 107 51 -117 Pyrene 2.77 2.397 ug/L 87 48 -127 2-Fluorobiphenyl (Surr)39 -118 Surrogate 96 LCS LCS Qualifier Limits%Recovery 82Nitrobenzene-d5 (Surr)45 -129 94Terphenyl-d14 (Surr)12 -144 Client Sample ID: Matrix SpikeLab Sample ID: 310-303003-F-12-A MS Matrix: Water Prep Type: Total/NA Analysis Batch: 450552 Prep Batch: 450572 2-Methylnaphthalene <0.143 F1 2.82 0.7307 F1 ug/L 26 33 -110 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Acenaphthene <0.143 F1 2.82 0.7996 F1 ug/L 28 43 -110 Acenaphthylene <0.143 F1 2.82 0.8139 F1 ug/L 29 40 -110 Anthracene <0.143 F1 2.82 0.7245 F1 ug/L 26 51 -120 Benzo(a)anthracene <0.143 F1 2.82 0.4936 F1 ug/L 17 51 -123 Eurofins Cedar Falls Page 88 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 8270E - Semivolatile Organic Compounds (GC-MS/MS) (Continued) Client Sample ID: Matrix SpikeLab Sample ID: 310-303003-F-12-A MS Matrix: Water Prep Type: Total/NA Analysis Batch: 450552 Prep Batch: 450572 Benzo(a)pyrene <0.143 F1 2.82 0.5258 F1 ug/L 19 48 -125 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Benzo(b)fluoranthene <0.143 F1 2.82 0.6313 F1 ug/L 22 49 -129 Benzo(g,h,i)perylene <0.143 F1 2.82 0.5765 F1 ug/L 20 43 -139 Benzo(k)fluoranthene <0.143 F1 2.82 0.5671 F1 ug/L 20 47 -130 Chrysene <0.143 F1 2.82 0.6327 F1 ug/L 22 51 -125 Dibenz(a,h)anthracene <0.143 F1 2.82 0.6059 F1 ug/L 21 38 -149 Fluoranthene <0.143 F1 2.82 0.6372 F1 ug/L 23 47 -128 Fluorene <0.143 F1 2.82 0.7700 F1 ug/L 27 45 -119 Indeno(1,2,3-cd)pyrene <0.143 F1 2.82 0.6097 F1 ug/L 22 37 -150 Naphthalene <0.143 F1 2.82 0.8708 F1 ug/L 31 38 -110 Phenanthrene <0.143 F1 2.82 0.8161 F1 ug/L 29 51 -117 Pyrene <0.143 F1 2.82 0.5823 F1 ug/L 21 48 -127 2-Fluorobiphenyl (Surr)S1-39 -118 Surrogate 30 MS MS Qualifier Limits%Recovery 30 S1-Nitrobenzene-d5 (Surr)45 -129 21Terphenyl-d14 (Surr)12 -144 Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303003-F-12-B MSD Matrix: Water Prep Type: Total/NA Analysis Batch: 450552 Prep Batch: 450572 2-Methylnaphthalene <0.143 F1 2.87 1.021 ug/L 36 33 -110 33 35 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Acenaphthene <0.143 F1 2.87 1.081 F1 ug/L 38 43 -110 30 35 Acenaphthylene <0.143 F1 2.87 1.052 F1 ug/L 37 40 -110 26 35 Anthracene <0.143 F1 2.87 0.9105 F1 ug/L 32 51 -120 23 35 Benzo(a)anthracene <0.143 F1 2.87 0.6139 F1 ug/L 21 51 -123 22 35 Benzo(a)pyrene <0.143 F1 2.87 0.5988 F1 ug/L 21 48 -125 13 35 Benzo(b)fluoranthene <0.143 F1 2.87 0.7384 F1 ug/L 26 49 -129 16 35 Benzo(g,h,i)perylene <0.143 F1 2.87 0.7699 F1 ug/L 27 43 -139 29 35 Benzo(k)fluoranthene <0.143 F1 2.87 0.6620 F1 ug/L 23 47 -130 15 35 Chrysene <0.143 F1 2.87 0.7544 F1 ug/L 26 51 -125 18 35 Dibenz(a,h)anthracene <0.143 F1 2.87 0.7425 F1 ug/L 26 38 -149 20 35 Fluoranthene <0.143 F1 2.87 0.8091 F1 ug/L 28 47 -128 24 35 Fluorene <0.143 F1 2.87 0.9415 F1 ug/L 33 45 -119 20 35 Indeno(1,2,3-cd)pyrene <0.143 F1 2.87 0.7275 F1 ug/L 25 37 -150 18 35 Naphthalene <0.143 F1 2.87 1.185 ug/L 41 38 -110 31 35 Phenanthrene <0.143 F1 2.87 1.015 F1 ug/L 35 51 -117 22 35 Pyrene <0.143 F1 2.87 0.7147 F1 ug/L 25 48 -127 20 35 2-Fluorobiphenyl (Surr)39 -118 Surrogate 41 MSD MSD Qualifier Limits%Recovery 45Nitrobenzene-d5 (Surr)45 -129 23Terphenyl-d14 (Surr)12 -144 Eurofins Cedar Falls Page 89 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) Client Sample ID: Method BlankLab Sample ID: MB 310-450219/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450229 Prep Batch: 450219 RL MDL Wisconsin GRO <9.58 9.58 mg/Kg 03/31/25 10:43 03/31/25 22:42 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)115 80 -120 03/31/25 22:42 1 MB MB Surrogate 03/31/25 10:43 Dil FacPreparedAnalyzedQualifierLimits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450219/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450229 Prep Batch: 450219 Wisconsin GRO 18.2 19.81 mg/Kg 109 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 4-Bromofluorobenzene (Surr)80 -120 Surrogate 117 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 310-450219/23-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450229 Prep Batch: 450219 Wisconsin GRO 18.7 18.74 mg/Kg 100 80 -120 6 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD 4-Bromofluorobenzene (Surr)80 -120 Surrogate 106 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 310-450220/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450232 Prep Batch: 450220 RL MDL Wisconsin GRO <9.52 9.52 mg/Kg 03/31/25 10:48 04/01/25 09:28 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)118 80 -120 04/01/25 09:28 1 MB MB Surrogate 03/31/25 10:48 Dil FacPreparedAnalyzedQualifierLimits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450220/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450232 Prep Batch: 450220 Wisconsin GRO 19.6 20.66 mg/Kg 105 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 4-Bromofluorobenzene (Surr)80 -120 Surrogate 105 LCS LCS Qualifier Limits%Recovery Eurofins Cedar Falls Page 90 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) (Continued) Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 310-450220/23-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450232 Prep Batch: 450220 Wisconsin GRO 19.8 18.72 mg/Kg 94 80 -120 10 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD 4-Bromofluorobenzene (Surr)80 -120 Surrogate 104 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 310-450330/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450333 Prep Batch: 450330 RL MDL Wisconsin GRO <9.47 9.47 mg/Kg 04/01/25 09:25 04/01/25 21:08 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)108 80 -120 04/01/25 21:08 1 MB MB Surrogate 04/01/25 09:25 Dil FacPreparedAnalyzedQualifierLimits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450330/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450333 Prep Batch: 450330 Wisconsin GRO 18.4 16.36 mg/Kg 89 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 4-Bromofluorobenzene (Surr)80 -120 Surrogate 104 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 310-450330/26-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450454 Prep Batch: 450330 Wisconsin GRO 19.9 21.35 mg/Kg 107 80 -120 NaN 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD 4-Bromofluorobenzene (Surr)80 -120 Surrogate 119 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 310-450392/2 Matrix: Water Prep Type: Total/NA Analysis Batch: 450392 RL MDL Wisconsin GRO <100 100 ug/L 04/02/25 04:16 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)92 80 -120 04/02/25 04:16 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery Eurofins Cedar Falls Page 91 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450392/1 Matrix: Water Prep Type: Total/NA Analysis Batch: 450392 Wisconsin GRO 400 411.6 ug/L 103 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 4-Bromofluorobenzene (Surr)80 -120 Surrogate 97 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 310-450392/26 Matrix: Water Prep Type: Total/NA Analysis Batch: 450392 Wisconsin GRO 400 409.3 ug/L 102 80 -120 1 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD 4-Bromofluorobenzene (Surr)80 -120 Surrogate 94 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Matrix SpikeLab Sample ID: 310-303003-C-12 MS Matrix: Water Prep Type: Total/NA Analysis Batch: 450392 Wisconsin GRO <100 500 464.4 ug/L 93 80 -120 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits 4-Bromofluorobenzene (Surr)80 -120 Surrogate 95 MS MS Qualifier Limits%Recovery Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303003-C-12 MSD Matrix: Water Prep Type: Total/NA Analysis Batch: 450392 Wisconsin GRO <100 500 484.0 ug/L 97 80 -120 4 20 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 4-Bromofluorobenzene (Surr)80 -120 Surrogate 98 MSD MSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 310-450443/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450455 Prep Batch: 450443 RL MDL Wisconsin GRO <9.72 9.72 mg/Kg 04/02/25 09:13 04/02/25 19:05 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)105 80 -120 04/02/25 19:05 1 MB MB Surrogate 04/02/25 09:13 Dil FacPreparedAnalyzedQualifierLimits%Recovery Eurofins Cedar Falls Page 92 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: WI-GRO - Wisconsin - Gasoline Range Organics (GC) (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450443/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450455 Prep Batch: 450443 Wisconsin GRO 19.5 19.47 mg/Kg 100 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 4-Bromofluorobenzene (Surr)80 -120 Surrogate 104 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 310-450443/25-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450455 Prep Batch: 450443 Wisconsin GRO 19.7 18.59 mg/Kg 94 80 -120 5 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD 4-Bromofluorobenzene (Surr)80 -120 Surrogate 107 LCSD LCSD Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 310-450450/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450454 Prep Batch: 450450 RL MDL Wisconsin GRO <9.51 9.51 mg/Kg 04/02/25 09:56 04/02/25 11:18 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)107 80 -120 04/02/25 11:18 1 MB MB Surrogate 04/02/25 09:56 Dil FacPreparedAnalyzedQualifierLimits%Recovery Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) Client Sample ID: Method BlankLab Sample ID: MB 310-450372/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 450784 Prep Batch: 450372 RL MDL Diesel Range Organics (DRO)<0.100 0.100 mg/L 04/01/25 12:54 04/07/25 14:11 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450372/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 450784 Prep Batch: 450372 Diesel Range Organics (DRO)5.00 4.575 mg/L 92 75 -115 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 310-450372/3-A Matrix: Water Prep Type: Total/NA Analysis Batch: 450784 Prep Batch: 450372 Diesel Range Organics (DRO)5.00 4.184 mg/L 84 75 -115 9 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Eurofins Cedar Falls Page 93 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: WI-DRO - Wisconsin - Diesel Range Organics (GC) (Continued) Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303003-A-12-A MSD Matrix: Water Prep Type: Total/NA Analysis Batch: 450784 Prep Batch: 450372 Diesel Range Organics (DRO)<0.109 F1 5.21 0.2958 F1 mg/L 6 35 -125 8 20 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Client Sample ID: Matrix SpikeLab Sample ID: 310-303003-B-12-A MS Matrix: Water Prep Type: Total/NA Analysis Batch: 450784 Prep Batch: 450372 Diesel Range Organics (DRO)<0.109 F1 5.21 0.3203 F1 mg/L 6 35 -125 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Client Sample ID: Method BlankLab Sample ID: MB 310-450423/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450784 Prep Batch: 450423 RL MDL Diesel Range Organics (DRO)<6.80 6.80 mg/Kg 04/02/25 07:20 04/07/25 19:20 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450423/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450784 Prep Batch: 450423 Diesel Range Organics (DRO)100 89.15 mg/Kg 89 70 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 310-450423/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450784 Prep Batch: 450423 Diesel Range Organics (DRO)98.5 96.40 mg/Kg 98 70 -120 8 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Client Sample ID: Method BlankLab Sample ID: MB 310-450551/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450909 Prep Batch: 450551 RL MDL Diesel Range Organics (DRO)<6.83 6.83 mg/Kg 04/03/25 08:35 04/08/25 15:25 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450551/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450909 Prep Batch: 450551 Diesel Range Organics (DRO)96.8 85.39 mg/Kg 88 70 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 310-450551/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 451029 Prep Batch: 450551 Diesel Range Organics (DRO)99.6 82.52 mg/Kg 83 70 -120 3 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Eurofins Cedar Falls Page 94 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 6020B - Metals (ICP/MS) Client Sample ID: Method BlankLab Sample ID: MB 310-450148/1-A ^5 Matrix: Solid Prep Type: Total/NA Analysis Batch: 450629 Prep Batch: 450148 RL MDL Arsenic <0.916 0.916 mg/Kg 04/02/25 12:00 04/03/25 14:04 5 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.916 0.916 mg/Kg 04/02/25 12:00 04/03/25 14:04 5Barium <0.458 0.458 mg/Kg 04/02/25 12:00 04/03/25 14:04 5Cadmium <1.37 1.37 mg/Kg 04/02/25 12:00 04/03/25 14:04 5Chromium <2.29 2.29 mg/Kg 04/02/25 12:00 04/03/25 14:04 5Lead <1.37 1.37 mg/Kg 04/02/25 12:00 04/03/25 14:04 5Selenium <0.458 0.458 mg/Kg 04/02/25 12:00 04/03/25 14:04 5Silver Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450148/2-A ^20 Matrix: Solid Prep Type: Total/NA Analysis Batch: 450629 Prep Batch: 450148 Arsenic 183 202.0 mg/Kg 110 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Barium 91.5 98.52 mg/Kg 108 80 -120 Cadmium 91.5 96.46 mg/Kg 105 80 -120 Chromium 91.5 97.34 mg/Kg 106 80 -120 Lead 183 212.4 mg/Kg 116 80 -120 Selenium 366 376.3 mg/Kg 103 80 -120 Silver 91.5 102.7 mg/Kg 112 80 -120 Client Sample ID: Matrix SpikeLab Sample ID: 310-303004-A-1-B MS ^20 Matrix: Solid Prep Type: Total/NA Analysis Batch: 450629 Prep Batch: 450148 Arsenic 3.05 188 226.4 mg/Kg 119 75 -125☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Barium 31.1 F1 94.0 171.3 F1 mg/Kg 149 75 -125☼ Cadmium <0.458 94.0 108.6 mg/Kg 115 75 -125☼ Chromium 12.5 94.0 111.3 mg/Kg 105 75 -125☼ Lead 16.7 188 240.3 mg/Kg 119 75 -125☼ Selenium <1.38 376 419.0 mg/Kg 111 75 -125☼ Silver 6.74 94.0 102.8 mg/Kg 102 75 -125☼ Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303004-A-1-C MSD ^20 Matrix: Solid Prep Type: Total/NA Analysis Batch: 450629 Prep Batch: 450148 Arsenic 3.05 187 229.4 mg/Kg 121 75 -125 1 20☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Barium 31.1 F1 93.7 151.1 F1 mg/Kg 128 75 -125 13 20☼ Cadmium <0.458 93.7 107.7 mg/Kg 115 75 -125 1 20☼ Chromium 12.5 93.7 109.7 mg/Kg 104 75 -125 1 20☼ Lead 16.7 187 237.0 mg/Kg 118 75 -125 1 20☼ Selenium <1.38 375 420.6 mg/Kg 112 75 -125 0 20☼ Silver 6.74 93.7 104.3 mg/Kg 104 75 -125 1 20☼ Eurofins Cedar Falls Page 95 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 6020B - Metals (ICP/MS) (Continued) Client Sample ID: EB-2 (10-12)Lab Sample ID: 310-303009-4 DU Matrix: Solid Prep Type: Total/NA Analysis Batch: 450629 Prep Batch: 450148 Arsenic 3.93 3.946 mg/Kg 0.5 20☼ Analyte DU DU DUnitResultQualifier Sample Result Sample Qualifier LimitRPD RPD Barium 70.6 81.88 mg/Kg 15 20☼ Cadmium <0.568 <0.557 mg/Kg NC 20☼ Chromium 12.5 12.43 mg/Kg 0.9 20☼ Lead 5.56 5.405 mg/Kg 3 20☼ Selenium <1.70 <1.67 mg/Kg NC 20☼ Silver <0.568 <0.557 mg/Kg NC 20☼ Client Sample ID: Method BlankLab Sample ID: MB 310-450221/1-B Matrix: Water Prep Type: Dissolved Analysis Batch: 450398 Prep Batch: 450316 RL MDL Arsenic <2.00 2.00 ug/L 04/01/25 09:30 04/01/25 14:49 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <2.00 2.00 ug/L 04/01/25 09:30 04/01/25 14:49 1Barium <0.200 0.200 ug/L 04/01/25 09:30 04/01/25 14:49 1Cadmium <5.00 5.00 ug/L 04/01/25 09:30 04/01/25 14:49 1Chromium <0.500 0.500 ug/L 04/01/25 09:30 04/01/25 14:49 1Lead <5.00 5.00 ug/L 04/01/25 09:30 04/01/25 14:49 1Selenium <1.00 1.00 ug/L 04/01/25 09:30 04/01/25 14:49 1Silver Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450221/2-B Matrix: Water Prep Type: Dissolved Analysis Batch: 450398 Prep Batch: 450316 Arsenic 200 208.5 ug/L 104 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Barium 100 105.6 ug/L 106 80 -120 Cadmium 100 103.1 ug/L 103 80 -120 Chromium 100 102.4 ug/L 102 80 -120 Lead 200 211.4 ug/L 106 80 -120 Selenium 400 393.6 ug/L 98 80 -120 Silver 100 105.2 ug/L 105 80 -120 Client Sample ID: EB-1Lab Sample ID: 310-303009-14 MS Matrix: Water Prep Type: Dissolved Analysis Batch: 450398 Prep Batch: 450316 Arsenic 2.34 200 202.9 ug/L 100 75 -125 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Barium 126 100 223.3 ug/L 97 75 -125 Cadmium <0.200 100 94.75 ug/L 95 75 -125 Chromium <5.00 100 97.55 ug/L 98 75 -125 Lead <0.500 200 193.4 ug/L 97 75 -125 Selenium <5.00 400 376.7 ug/L 94 75 -125 Silver <1.00 100 99.75 ug/L 100 75 -125 Eurofins Cedar Falls Page 96 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 6020B - Metals (ICP/MS) (Continued) Client Sample ID: EB-1Lab Sample ID: 310-303009-14 MSD Matrix: Water Prep Type: Dissolved Analysis Batch: 450398 Prep Batch: 450316 Arsenic 2.34 200 216.6 ug/L 107 75 -125 7 20 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Barium 126 100 236.5 ug/L 110 75 -125 6 20 Cadmium <0.200 100 101.6 ug/L 102 75 -125 7 20 Chromium <5.00 100 104.1 ug/L 104 75 -125 7 20 Lead <0.500 200 209.0 ug/L 105 75 -125 8 20 Selenium <5.00 400 401.9 ug/L 100 75 -125 6 20 Silver <1.00 100 104.3 ug/L 104 75 -125 4 20 Method: 7470A - Mercury (CVAA) Client Sample ID: Method BlankLab Sample ID: MB 310-450222/1-B Matrix: Water Prep Type: Dissolved Analysis Batch: 450514 Prep Batch: 450460 RL MDL Mercury <0.200 0.200 ug/L 04/02/25 09:16 04/02/25 12:46 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450222/2-B Matrix: Water Prep Type: Dissolved Analysis Batch: 450514 Prep Batch: 450460 Mercury 1.67 1.684 ug/L 101 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: EB-3Lab Sample ID: 310-303009-15 MS Matrix: Water Prep Type: Dissolved Analysis Batch: 450514 Prep Batch: 450460 Mercury <0.200 1.67 1.680 ug/L 101 80 -120 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Client Sample ID: EB-3Lab Sample ID: 310-303009-15 MSD Matrix: Water Prep Type: Dissolved Analysis Batch: 450514 Prep Batch: 450460 Mercury <0.200 1.67 1.654 ug/L 99 80 -120 2 20 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Method: 7471B - Mercury (CVAA) Client Sample ID: Method BlankLab Sample ID: MB 310-450261/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450397 Prep Batch: 450261 RL MDL Mercury <0.0169 0.0169 mg/Kg 04/01/25 12:15 04/01/25 14:22 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Eurofins Cedar Falls Page 97 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: 7471B - Mercury (CVAA) (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450261/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450397 Prep Batch: 450261 Mercury 0.147 0.1346 mg/Kg 92 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Matrix SpikeLab Sample ID: 310-302680-A-1-D MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450397 Prep Batch: 450261 Mercury 0.160 F1 0.168 0.4299 F1 mg/Kg 161 80 -120☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-302680-A-1-E MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450397 Prep Batch: 450261 Mercury 0.160 F1 0.165 0.3940 F1 mg/Kg 142 80 -120 9 20☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Client Sample ID: Method BlankLab Sample ID: MB 310-450262/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450763 Prep Batch: 450262 RL MDL Mercury <0.0171 0.0171 mg/Kg 04/03/25 15:44 04/04/25 14:33 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 310-450262/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 450763 Prep Batch: 450262 Mercury 0.161 0.1542 mg/Kg 96 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Matrix Spike DuplicateLab Sample ID: 310-303003-B-5-B MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 450763 Prep Batch: 450262 Mercury 0.0519 0.167 0.1966 mg/Kg 86 80 -120 11 20☼ Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Client Sample ID: Matrix SpikeLab Sample ID: 310-303003-C-5-A MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 450763 Prep Batch: 450262 Mercury 0.0519 0.165 0.2186 mg/Kg 101 80 -120☼ Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Eurofins Cedar Falls Page 98 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method: Moisture - Percent Moisture Client Sample ID: EB-2 (10-12)Lab Sample ID: 310-303009-4 DU Matrix: Solid Prep Type: Total/NA Analysis Batch: 450235 Percent Moisture 15.4 15.0 %2 40 Analyte DU DU DUnitResultQualifier Sample Result Sample Qualifier LimitRPD RPD Percent Solids 84.6 85.0 %0.4 16 Eurofins Cedar Falls Page 99 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 GC/MS VOA Prep Batch: 450413 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 5035310-303009-1 EB-1 (2-4)Total/NA Solid 5035MB 310-450413/1-A Method Blank Total/NA Solid 5035LCS 310-450413/2-A Lab Control Sample Total/NA Solid 5035310-302899-D-1-B MS Matrix Spike Total/NA Solid 5035310-302899-D-1-C MSD Matrix Spike Duplicate Total/NA Analysis Batch: 450517 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 8260D310-303009-14 EB-1 Total/NA Water 8260D310-303009-15 EB-3 Total/NA Water 8260D310-303009-16 Trip Blank - GW Total/NA Water 8260DMB 310-450517/6 Method Blank Total/NA Water 8260DLCS 310-450517/7 Lab Control Sample Total/NA Water 8260DLCS 310-450517/8 Lab Control Sample Total/NA Water 8260D310-303003-D-12 MS Matrix Spike Total/NA Water 8260D310-303003-D-12 MSD Matrix Spike Duplicate Total/NA Analysis Batch: 450532 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8260D 450413310-303009-1 EB-1 (2-4)Total/NA Solid 8260D 450413MB 310-450413/1-A Method Blank Total/NA Solid 8260D 450413LCS 310-450413/2-A Lab Control Sample Total/NA Solid 8260D 450413310-302899-D-1-B MS Matrix Spike Total/NA Solid 8260D 450413310-302899-D-1-C MSD Matrix Spike Duplicate Total/NA Prep Batch: 450780 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 5035310-303009-2 EB-1 (10-12)Total/NA Solid 5035310-303009-3 EB-2 (2-4)Total/NA Solid 5035310-303009-4 EB-2 (10-12)Total/NA Solid 5035310-303009-5 EB-3 (4-6)Total/NA Solid 5035310-303009-6 EB-3 (12-14)Total/NA Solid 5035310-303009-7 EB-4 (4-6)Total/NA Solid 5035MB 310-450780/1-A Method Blank Total/NA Solid 5035LCS 310-450780/2-A Lab Control Sample Total/NA Solid 5035310-303002-E-1-E MS Matrix Spike Total/NA Solid 5035310-303002-E-1-F MSD Matrix Spike Duplicate Total/NA Analysis Batch: 450781 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8260D 450780310-303009-2 EB-1 (10-12)Total/NA Solid 8260D 450780310-303009-3 EB-2 (2-4)Total/NA Solid 8260D 450780310-303009-4 EB-2 (10-12)Total/NA Solid 8260D 450780310-303009-5 EB-3 (4-6)Total/NA Solid 8260D 450780310-303009-6 EB-3 (12-14)Total/NA Solid 8260D 450780310-303009-7 EB-4 (4-6)Total/NA Solid 8260D 450780MB 310-450780/1-A Method Blank Total/NA Solid 8260D 450780LCS 310-450780/2-A Lab Control Sample Total/NA Solid 8260D 450780310-303002-E-1-E MS Matrix Spike Total/NA Solid 8260D 450780310-303002-E-1-F MSD Matrix Spike Duplicate Total/NA Eurofins Cedar Falls Page 100 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 GC/MS VOA Prep Batch: 450782 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 5035310-303009-8 EB-4 (8-10)Total/NA Solid 5035310-303009-9 EB-5 (4-6)Total/NA Solid 5035310-303009-10 EB-5 (10-12)Total/NA Solid 5035310-303009-11 EB-6 (2-4)Total/NA Solid 5035310-303009-12 EB-6 (8-10)Total/NA Solid 5035310-303009-13 Trip Blank - Soil Total/NA Solid 5035MB 310-450782/1-A Method Blank Total/NA Solid 5035LCS 310-450782/2-A Lab Control Sample Total/NA Solid 5035310-303009-8 MS EB-4 (8-10)Total/NA Solid 5035310-303009-8 MSD EB-4 (8-10)Total/NA Analysis Batch: 450785 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8260D 450782310-303009-8 EB-4 (8-10)Total/NA Solid 8260D 450782310-303009-9 EB-5 (4-6)Total/NA Solid 8260D 450782310-303009-10 EB-5 (10-12)Total/NA Solid 8260D 450782310-303009-11 EB-6 (2-4)Total/NA Solid 8260D 450782310-303009-12 EB-6 (8-10)Total/NA Solid 8260D 450782310-303009-13 Trip Blank - Soil Total/NA Solid 8260D 450782MB 310-450782/1-A Method Blank Total/NA Solid 8260D 450782LCS 310-450782/2-A Lab Control Sample Total/NA Solid 8260D 450782310-303009-8 MS EB-4 (8-10)Total/NA Solid 8260D 450782310-303009-8 MSD EB-4 (8-10)Total/NA GC/MS Semi VOA Prep Batch: 450458 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546310-303009-1 EB-1 (2-4)Total/NA Solid 3546310-303009-2 EB-1 (10-12)Total/NA Solid 3546310-303009-3 EB-2 (2-4)Total/NA Solid 3546310-303009-4 EB-2 (10-12)Total/NA Solid 3546310-303009-5 EB-3 (4-6)Total/NA Solid 3546310-303009-6 EB-3 (12-14)Total/NA Solid 3546310-303009-7 EB-4 (4-6)Total/NA Solid 3546310-303009-8 EB-4 (8-10)Total/NA Solid 3546310-303009-9 EB-5 (4-6)Total/NA Solid 3546310-303009-10 EB-5 (10-12)Total/NA Solid 3546310-303009-11 EB-6 (2-4)Total/NA Solid 3546310-303009-12 EB-6 (8-10)Total/NA Solid 3546MB 310-450458/1-A Method Blank Total/NA Solid 3546LCS 310-450458/2-A Lab Control Sample Total/NA Solid 3546310-302655-B-5-E MS Matrix Spike Total/NA Solid 3546310-302655-B-5-F MSD Matrix Spike Duplicate Total/NA Analysis Batch: 450552 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 8270E 450572310-303009-14 EB-1 Total/NA Water 8270E 450572310-303009-15 EB-3 Total/NA Water 8270E 450572MB 310-450572/1-A Method Blank Total/NA Water 8270E 450572LCS 310-450572/2-A Lab Control Sample Total/NA Eurofins Cedar Falls Page 101 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 GC/MS Semi VOA (Continued) Analysis Batch: 450552 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 8270E 450572310-303003-F-12-A MS Matrix Spike Total/NA Water 8270E 450572310-303003-F-12-B MSD Matrix Spike Duplicate Total/NA Analysis Batch: 450564 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8270E 450458310-303009-1 EB-1 (2-4)Total/NA Solid 8270E 450458310-303009-2 EB-1 (10-12)Total/NA Solid 8270E 450458310-303009-3 EB-2 (2-4)Total/NA Solid 8270E 450458310-303009-4 EB-2 (10-12)Total/NA Solid 8270E 450458310-303009-5 EB-3 (4-6)Total/NA Solid 8270E 450458310-303009-6 EB-3 (12-14)Total/NA Solid 8270E 450458310-303009-7 EB-4 (4-6)Total/NA Solid 8270E 450458310-303009-8 EB-4 (8-10)Total/NA Solid 8270E 450458310-303009-9 EB-5 (4-6)Total/NA Solid 8270E 450458310-303009-10 EB-5 (10-12)Total/NA Solid 8270E 450458310-303009-11 EB-6 (2-4)Total/NA Solid 8270E 450458310-303009-12 EB-6 (8-10)Total/NA Solid 8270E 450458MB 310-450458/1-A Method Blank Total/NA Solid 8270E 450458LCS 310-450458/2-A Lab Control Sample Total/NA Solid 8270E 450458310-302655-B-5-E MS Matrix Spike Total/NA Solid 8270E 450458310-302655-B-5-F MSD Matrix Spike Duplicate Total/NA Prep Batch: 450572 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 3511310-303009-14 EB-1 Total/NA Water 3511310-303009-15 EB-3 Total/NA Water 3511MB 310-450572/1-A Method Blank Total/NA Water 3511LCS 310-450572/2-A Lab Control Sample Total/NA Water 3511310-303003-F-12-A MS Matrix Spike Total/NA Water 3511310-303003-F-12-B MSD Matrix Spike Duplicate Total/NA Analysis Batch: 450703 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8270E 450458310-303009-1 EB-1 (2-4)Total/NA Solid 8270E 450458310-303009-5 EB-3 (4-6)Total/NA Solid 8270E 450458310-303009-6 EB-3 (12-14)Total/NA Solid 8270E 450458310-303009-8 EB-4 (8-10)Total/NA Solid 8270E 450458310-303009-9 EB-5 (4-6)Total/NA Solid 8270E 450458310-303009-11 EB-6 (2-4)Total/NA Solid 8270E 450458310-303009-12 EB-6 (8-10)Total/NA GC VOA Prep Batch: 450219 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI GRO310-303009-1 EB-1 (2-4)Total/NA Solid WI GRO310-303009-2 EB-1 (10-12)Total/NA Solid 5035MB 310-450219/1-A Method Blank Total/NA Solid 5035LCS 310-450219/2-A Lab Control Sample Total/NA Solid 5035LCSD 310-450219/23-A Lab Control Sample Dup Total/NA Eurofins Cedar Falls Page 102 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 GC VOA Prep Batch: 450220 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI GRO310-303009-3 EB-2 (2-4)Total/NA Solid WI GRO310-303009-4 EB-2 (10-12)Total/NA Solid WI GRO310-303009-5 EB-3 (4-6)Total/NA Solid WI GRO310-303009-6 EB-3 (12-14)Total/NA Solid WI GRO310-303009-7 EB-4 (4-6)Total/NA Solid WI GRO310-303009-8 EB-4 (8-10)Total/NA Solid WI GRO310-303009-9 EB-5 (4-6)Total/NA Solid WI GRO310-303009-10 EB-5 (10-12)Total/NA Solid 5035MB 310-450220/1-A Method Blank Total/NA Solid 5035LCS 310-450220/2-A Lab Control Sample Total/NA Solid 5035LCSD 310-450220/23-A Lab Control Sample Dup Total/NA Analysis Batch: 450229 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI-GRO 450219310-303009-1 EB-1 (2-4)Total/NA Solid WI-GRO 450219310-303009-2 EB-1 (10-12)Total/NA Solid WI-GRO 450219MB 310-450219/1-A Method Blank Total/NA Solid WI-GRO 450219LCS 310-450219/2-A Lab Control Sample Total/NA Solid WI-GRO 450219LCSD 310-450219/23-A Lab Control Sample Dup Total/NA Analysis Batch: 450232 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI-GRO 450220310-303009-3 EB-2 (2-4)Total/NA Solid WI-GRO 450220310-303009-4 EB-2 (10-12)Total/NA Solid WI-GRO 450220310-303009-5 EB-3 (4-6)Total/NA Solid WI-GRO 450220310-303009-6 EB-3 (12-14)Total/NA Solid WI-GRO 450220310-303009-7 EB-4 (4-6)Total/NA Solid WI-GRO 450220310-303009-8 EB-4 (8-10)Total/NA Solid WI-GRO 450220310-303009-9 EB-5 (4-6)Total/NA Solid WI-GRO 450220310-303009-10 EB-5 (10-12)Total/NA Solid WI-GRO 450220MB 310-450220/1-A Method Blank Total/NA Solid WI-GRO 450220LCS 310-450220/2-A Lab Control Sample Total/NA Solid WI-GRO 450220LCSD 310-450220/23-A Lab Control Sample Dup Total/NA Prep Batch: 450330 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI GRO310-303009-13 Trip Blank - Soil Total/NA Solid 5035MB 310-450330/1-A Method Blank Total/NA Solid 5035LCS 310-450330/2-A Lab Control Sample Total/NA Solid 5035LCSD 310-450330/26-A Lab Control Sample Dup Total/NA Analysis Batch: 450333 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI-GRO 450330310-303009-13 Trip Blank - Soil Total/NA Solid WI-GRO 450330MB 310-450330/1-A Method Blank Total/NA Solid WI-GRO 450330LCS 310-450330/2-A Lab Control Sample Total/NA Analysis Batch: 450392 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water WI-GRO310-303009-14 EB-1 Total/NA Water WI-GRO310-303009-15 EB-3 Total/NA Eurofins Cedar Falls Page 103 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 GC VOA (Continued) Analysis Batch: 450392 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water WI-GRO310-303009-16 Trip Blank - GW Total/NA Water WI-GROMB 310-450392/2 Method Blank Total/NA Water WI-GROLCS 310-450392/1 Lab Control Sample Total/NA Water WI-GROLCSD 310-450392/26 Lab Control Sample Dup Total/NA Water WI-GRO310-303003-C-12 MS Matrix Spike Total/NA Water WI-GRO310-303003-C-12 MSD Matrix Spike Duplicate Total/NA Prep Batch: 450443 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI GRO310-303009-11 EB-6 (2-4)Total/NA Solid WI GRO310-303009-12 EB-6 (8-10)Total/NA Solid 5035MB 310-450443/1-A Method Blank Total/NA Solid 5035LCS 310-450443/2-A Lab Control Sample Total/NA Solid 5035LCSD 310-450443/25-A Lab Control Sample Dup Total/NA Prep Batch: 450450 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 5035MB 310-450450/1-A Method Blank Total/NA Analysis Batch: 450454 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI-GRO 450450MB 310-450450/1-A Method Blank Total/NA Solid WI-GRO 450330LCSD 310-450330/26-A Lab Control Sample Dup Total/NA Analysis Batch: 450455 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI-GRO 450443310-303009-11 EB-6 (2-4)Total/NA Solid WI-GRO 450443310-303009-12 EB-6 (8-10)Total/NA Solid WI-GRO 450443MB 310-450443/1-A Method Blank Total/NA Solid WI-GRO 450443LCS 310-450443/2-A Lab Control Sample Total/NA Solid WI-GRO 450443LCSD 310-450443/25-A Lab Control Sample Dup Total/NA GC Semi VOA Prep Batch: 450372 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 3510C310-303009-14 EB-1 Total/NA Water 3510C310-303009-15 EB-3 Total/NA Water 3510CMB 310-450372/1-A Method Blank Total/NA Water 3510CLCS 310-450372/2-A Lab Control Sample Total/NA Water 3510CLCSD 310-450372/3-A Lab Control Sample Dup Total/NA Water 3510C310-303003-A-12-A MSD Matrix Spike Duplicate Total/NA Water 3510C310-303003-B-12-A MS Matrix Spike Total/NA Prep Batch: 450423 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI DRO PREP310-303009-1 EB-1 (2-4)Total/NA Solid WI DRO PREP310-303009-2 EB-1 (10-12)Total/NA Solid WI DRO PREP310-303009-3 EB-2 (2-4)Total/NA Solid WI DRO PREP310-303009-4 EB-2 (10-12)Total/NA Solid WI DRO PREP310-303009-5 EB-3 (4-6)Total/NA Eurofins Cedar Falls Page 104 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 GC Semi VOA (Continued) Prep Batch: 450423 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI DRO PREP310-303009-6 EB-3 (12-14)Total/NA Solid WI DRO PREP310-303009-7 EB-4 (4-6)Total/NA Solid WI DRO PREPMB 310-450423/1-A Method Blank Total/NA Solid WI DRO PREPLCS 310-450423/2-A Lab Control Sample Total/NA Solid WI DRO PREPLCSD 310-450423/3-A Lab Control Sample Dup Total/NA Prep Batch: 450551 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI DRO PREP310-303009-8 EB-4 (8-10)Total/NA Solid WI DRO PREP310-303009-9 EB-5 (4-6)Total/NA Solid WI DRO PREP310-303009-10 EB-5 (10-12)Total/NA Solid WI DRO PREP310-303009-11 EB-6 (2-4)Total/NA Solid WI DRO PREP310-303009-12 EB-6 (8-10)Total/NA Solid WI DRO PREPMB 310-450551/1-A Method Blank Total/NA Solid WI DRO PREPLCS 310-450551/2-A Lab Control Sample Total/NA Solid WI DRO PREPLCSD 310-450551/3-A Lab Control Sample Dup Total/NA Analysis Batch: 450784 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI-DRO 450423310-303009-1 EB-1 (2-4)Total/NA Solid WI-DRO 450423310-303009-2 EB-1 (10-12)Total/NA Solid WI-DRO 450423310-303009-3 EB-2 (2-4)Total/NA Solid WI-DRO 450423310-303009-4 EB-2 (10-12)Total/NA Solid WI-DRO 450423310-303009-5 EB-3 (4-6)Total/NA Solid WI-DRO 450423310-303009-6 EB-3 (12-14)Total/NA Solid WI-DRO 450423310-303009-7 EB-4 (4-6)Total/NA Water WI-DRO 450372310-303009-14 EB-1 Total/NA Water WI-DRO 450372310-303009-15 EB-3 Total/NA Water WI-DRO 450372MB 310-450372/1-A Method Blank Total/NA Solid WI-DRO 450423MB 310-450423/1-A Method Blank Total/NA Water WI-DRO 450372LCS 310-450372/2-A Lab Control Sample Total/NA Solid WI-DRO 450423LCS 310-450423/2-A Lab Control Sample Total/NA Water WI-DRO 450372LCSD 310-450372/3-A Lab Control Sample Dup Total/NA Solid WI-DRO 450423LCSD 310-450423/3-A Lab Control Sample Dup Total/NA Water WI-DRO 450372310-303003-A-12-A MSD Matrix Spike Duplicate Total/NA Water WI-DRO 450372310-303003-B-12-A MS Matrix Spike Total/NA Analysis Batch: 450909 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI-DRO 450551310-303009-10 EB-5 (10-12)Total/NA Solid WI-DRO 450551310-303009-11 EB-6 (2-4)Total/NA Solid WI-DRO 450551310-303009-12 EB-6 (8-10)Total/NA Solid WI-DRO 450551MB 310-450551/1-A Method Blank Total/NA Solid WI-DRO 450551LCS 310-450551/2-A Lab Control Sample Total/NA Analysis Batch: 451029 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid WI-DRO 450551310-303009-8 EB-4 (8-10)Total/NA Solid WI-DRO 450551310-303009-9 EB-5 (4-6)Total/NA Solid WI-DRO 450551LCSD 310-450551/3-A Lab Control Sample Dup Total/NA Eurofins Cedar Falls Page 105 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Metals Prep Batch: 450148 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3050B310-303009-1 EB-1 (2-4)Total/NA Solid 3050B310-303009-2 EB-1 (10-12)Total/NA Solid 3050B310-303009-3 EB-2 (2-4)Total/NA Solid 3050B310-303009-4 EB-2 (10-12)Total/NA Solid 3050B310-303009-5 EB-3 (4-6)Total/NA Solid 3050B310-303009-6 EB-3 (12-14)Total/NA Solid 3050B310-303009-7 EB-4 (4-6)Total/NA Solid 3050B310-303009-8 EB-4 (8-10)Total/NA Solid 3050B310-303009-9 EB-5 (4-6)Total/NA Solid 3050B310-303009-10 EB-5 (10-12)Total/NA Solid 3050B310-303009-11 EB-6 (2-4)Total/NA Solid 3050B310-303009-12 EB-6 (8-10)Total/NA Solid 3050BMB 310-450148/1-A ^5 Method Blank Total/NA Solid 3050BLCS 310-450148/2-A ^20 Lab Control Sample Total/NA Solid 3050B310-303004-A-1-B MS ^20 Matrix Spike Total/NA Solid 3050B310-303004-A-1-C MSD ^20 Matrix Spike Duplicate Total/NA Solid 3050B310-303009-4 DU EB-2 (10-12)Total/NA Filtration Batch: 450221 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water Filtration310-303009-14 EB-1 Dissolved Water Filtration310-303009-15 EB-3 Dissolved Water FiltrationMB 310-450221/1-B Method Blank Dissolved Water FiltrationLCS 310-450221/2-B Lab Control Sample Dissolved Water Filtration310-303009-14 MS EB-1 Dissolved Water Filtration310-303009-14 MSD EB-1 Dissolved Filtration Batch: 450222 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water Filtration310-303009-14 EB-1 Dissolved Water Filtration310-303009-15 EB-3 Dissolved Water FiltrationMB 310-450222/1-B Method Blank Dissolved Water FiltrationLCS 310-450222/2-B Lab Control Sample Dissolved Water Filtration310-303009-15 MS EB-3 Dissolved Water Filtration310-303009-15 MSD EB-3 Dissolved Prep Batch: 450261 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7471B310-303009-1 EB-1 (2-4)Total/NA Solid 7471B310-303009-2 EB-1 (10-12)Total/NA Solid 7471B310-303009-3 EB-2 (2-4)Total/NA Solid 7471B310-303009-4 EB-2 (10-12)Total/NA Solid 7471B310-303009-5 EB-3 (4-6)Total/NA Solid 7471B310-303009-6 EB-3 (12-14)Total/NA Solid 7471B310-303009-7 EB-4 (4-6)Total/NA Solid 7471B310-303009-8 EB-4 (8-10)Total/NA Solid 7471BMB 310-450261/1-A Method Blank Total/NA Solid 7471BLCS 310-450261/2-A Lab Control Sample Total/NA Solid 7471B310-302680-A-1-D MS Matrix Spike Total/NA Solid 7471B310-302680-A-1-E MSD Matrix Spike Duplicate Total/NA Eurofins Cedar Falls Page 106 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Metals Prep Batch: 450262 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7471B310-303009-9 EB-5 (4-6)Total/NA Solid 7471B310-303009-10 EB-5 (10-12)Total/NA Solid 7471B310-303009-11 EB-6 (2-4)Total/NA Solid 7471B310-303009-12 EB-6 (8-10)Total/NA Solid 7471BMB 310-450262/1-A Method Blank Total/NA Solid 7471BLCS 310-450262/2-A Lab Control Sample Total/NA Solid 7471B310-303003-B-5-B MSD Matrix Spike Duplicate Total/NA Solid 7471B310-303003-C-5-A MS Matrix Spike Total/NA Prep Batch: 450316 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 3005A 450221310-303009-14 EB-1 Dissolved Water 3005A 450221310-303009-15 EB-3 Dissolved Water 3005A 450221MB 310-450221/1-B Method Blank Dissolved Water 3005A 450221LCS 310-450221/2-B Lab Control Sample Dissolved Water 3005A 450221310-303009-14 MS EB-1 Dissolved Water 3005A 450221310-303009-14 MSD EB-1 Dissolved Analysis Batch: 450397 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7471B 450261310-303009-1 EB-1 (2-4)Total/NA Solid 7471B 450261310-303009-2 EB-1 (10-12)Total/NA Solid 7471B 450261310-303009-3 EB-2 (2-4)Total/NA Solid 7471B 450261310-303009-4 EB-2 (10-12)Total/NA Solid 7471B 450261310-303009-5 EB-3 (4-6)Total/NA Solid 7471B 450261310-303009-6 EB-3 (12-14)Total/NA Solid 7471B 450261310-303009-7 EB-4 (4-6)Total/NA Solid 7471B 450261310-303009-8 EB-4 (8-10)Total/NA Solid 7471B 450261MB 310-450261/1-A Method Blank Total/NA Solid 7471B 450261LCS 310-450261/2-A Lab Control Sample Total/NA Solid 7471B 450261310-302680-A-1-D MS Matrix Spike Total/NA Solid 7471B 450261310-302680-A-1-E MSD Matrix Spike Duplicate Total/NA Analysis Batch: 450398 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 6020B 450316310-303009-14 EB-1 Dissolved Water 6020B 450316310-303009-15 EB-3 Dissolved Water 6020B 450316MB 310-450221/1-B Method Blank Dissolved Water 6020B 450316LCS 310-450221/2-B Lab Control Sample Dissolved Water 6020B 450316310-303009-14 MS EB-1 Dissolved Water 6020B 450316310-303009-14 MSD EB-1 Dissolved Prep Batch: 450460 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 7470A 450222310-303009-14 EB-1 Dissolved Water 7470A 450222310-303009-15 EB-3 Dissolved Water 7470A 450222MB 310-450222/1-B Method Blank Dissolved Water 7470A 450222LCS 310-450222/2-B Lab Control Sample Dissolved Water 7470A 450222310-303009-15 MS EB-3 Dissolved Water 7470A 450222310-303009-15 MSD EB-3 Dissolved Eurofins Cedar Falls Page 107 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Metals Analysis Batch: 450514 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 7470A 450460310-303009-14 EB-1 Dissolved Water 7470A 450460310-303009-15 EB-3 Dissolved Water 7470A 450460MB 310-450222/1-B Method Blank Dissolved Water 7470A 450460LCS 310-450222/2-B Lab Control Sample Dissolved Water 7470A 450460310-303009-15 MS EB-3 Dissolved Water 7470A 450460310-303009-15 MSD EB-3 Dissolved Analysis Batch: 450629 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 6020B 450148310-303009-1 EB-1 (2-4)Total/NA Solid 6020B 450148310-303009-2 EB-1 (10-12)Total/NA Solid 6020B 450148310-303009-3 EB-2 (2-4)Total/NA Solid 6020B 450148310-303009-4 EB-2 (10-12)Total/NA Solid 6020B 450148310-303009-5 EB-3 (4-6)Total/NA Solid 6020B 450148310-303009-6 EB-3 (12-14)Total/NA Solid 6020B 450148310-303009-7 EB-4 (4-6)Total/NA Solid 6020B 450148310-303009-8 EB-4 (8-10)Total/NA Solid 6020B 450148310-303009-9 EB-5 (4-6)Total/NA Solid 6020B 450148310-303009-10 EB-5 (10-12)Total/NA Solid 6020B 450148310-303009-11 EB-6 (2-4)Total/NA Solid 6020B 450148310-303009-12 EB-6 (8-10)Total/NA Solid 6020B 450148MB 310-450148/1-A ^5 Method Blank Total/NA Solid 6020B 450148LCS 310-450148/2-A ^20 Lab Control Sample Total/NA Solid 6020B 450148310-303004-A-1-B MS ^20 Matrix Spike Total/NA Solid 6020B 450148310-303004-A-1-C MSD ^20 Matrix Spike Duplicate Total/NA Solid 6020B 450148310-303009-4 DU EB-2 (10-12)Total/NA Analysis Batch: 450763 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7471B 450262310-303009-9 EB-5 (4-6)Total/NA Solid 7471B 450262310-303009-10 EB-5 (10-12)Total/NA Solid 7471B 450262310-303009-11 EB-6 (2-4)Total/NA Solid 7471B 450262310-303009-12 EB-6 (8-10)Total/NA Solid 7471B 450262MB 310-450262/1-A Method Blank Total/NA Solid 7471B 450262LCS 310-450262/2-A Lab Control Sample Total/NA Solid 7471B 450262310-303003-B-5-B MSD Matrix Spike Duplicate Total/NA Solid 7471B 450262310-303003-C-5-A MS Matrix Spike Total/NA General Chemistry Analysis Batch: 450235 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid Moisture310-303009-1 EB-1 (2-4)Total/NA Solid Moisture310-303009-2 EB-1 (10-12)Total/NA Solid Moisture310-303009-3 EB-2 (2-4)Total/NA Solid Moisture310-303009-4 EB-2 (10-12)Total/NA Solid Moisture310-303009-5 EB-3 (4-6)Total/NA Solid Moisture310-303009-6 EB-3 (12-14)Total/NA Solid Moisture310-303009-7 EB-4 (4-6)Total/NA Solid Moisture310-303009-8 EB-4 (8-10)Total/NA Solid Moisture310-303009-9 EB-5 (4-6)Total/NA Eurofins Cedar Falls Page 108 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 General Chemistry (Continued) Analysis Batch: 450235 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid Moisture310-303009-10 EB-5 (10-12)Total/NA Solid Moisture310-303009-11 EB-6 (2-4)Total/NA Solid Moisture310-303009-12 EB-6 (8-10)Total/NA Solid Moisture310-303009-4 DU EB-2 (10-12)Total/NA Eurofins Cedar Falls Page 109 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-1 (2-4)Lab Sample ID: 310-303009-1 Matrix: SolidDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Prep 5035 MZR8450413 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/02/25 07:00 Analysis 8260D 1 450532 MZR8 EET CFTotal/NA 04/03/25 15:40 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 16:58 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450703 D2YP EET CFTotal/NA 04/04/25 12:57 Prep WI GRO 450219 P5ZC EET CFTotal/NA 03/31/25 10:43 Analysis WI-GRO 1 450229 P5ZC EET CFTotal/NA 04/01/25 07:19 Prep WI DRO PREP 450423 BDJ4 EET CFTotal/NA 04/02/25 07:20 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 21:41 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 14:50 Prep 7471B 450261 QTZ5 EET CFTotal/NA 04/01/25 12:15 Analysis 7471B 1 450397 F5MW EET CFTotal/NA 04/01/25 15:06 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:07 Client Sample ID: EB-1 (10-12)Lab Sample ID: 310-303009-2 Matrix: SolidDate Collected: 03/27/25 15:05 Date Received: 03/29/25 08:45 Prep 5035 MZR8450780 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:10 Analysis 8260D 1 450781 MZR8 EET CFTotal/NA 04/07/25 16:26 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 17:22 Prep WI GRO 450219 P5ZC EET CFTotal/NA 03/31/25 10:43 Analysis WI-GRO 1 450229 P5ZC EET CFTotal/NA 04/01/25 07:45 Prep WI DRO PREP 450423 BDJ4 EET CFTotal/NA 04/02/25 07:20 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 20:24 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 14:52 Prep 7471B 450261 QTZ5 EET CFTotal/NA 04/01/25 12:15 Analysis 7471B 1 450397 F5MW EET CFTotal/NA 04/01/25 15:08 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:07 Client Sample ID: EB-2 (2-4)Lab Sample ID: 310-303009-3 Matrix: SolidDate Collected: 03/27/25 15:10 Date Received: 03/29/25 08:45 Prep 5035 MZR8450780 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:10 Analysis 8260D 1 450781 MZR8 EET CFTotal/NA 04/07/25 16:49 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 17:46 Eurofins Cedar Falls Page 110 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-2 (2-4)Lab Sample ID: 310-303009-3 Matrix: SolidDate Collected: 03/27/25 15:10 Date Received: 03/29/25 08:45 Prep WI GRO P5ZC450220 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 03/31/25 10:48 Analysis WI-GRO 1 450232 P5ZC EET CFTotal/NA 04/01/25 15:31 Prep WI DRO PREP 450423 BDJ4 EET CFTotal/NA 04/02/25 07:20 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 20:37 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 14:54 Prep 7471B 450261 QTZ5 EET CFTotal/NA 04/01/25 12:15 Analysis 7471B 1 450397 F5MW EET CFTotal/NA 04/01/25 15:15 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:07 Client Sample ID: EB-2 (10-12)Lab Sample ID: 310-303009-4 Matrix: SolidDate Collected: 03/27/25 15:15 Date Received: 03/29/25 08:45 Prep 5035 MZR8450780 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:10 Analysis 8260D 1 450781 MZR8 EET CFTotal/NA 04/07/25 17:12 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 18:11 Prep WI GRO 450220 P5ZC EET CFTotal/NA 03/31/25 10:48 Analysis WI-GRO 1 450232 P5ZC EET CFTotal/NA 04/01/25 15:57 Prep WI DRO PREP 450423 BDJ4 EET CFTotal/NA 04/02/25 07:20 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 20:50 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 14:57 Prep 7471B 450261 QTZ5 EET CFTotal/NA 04/01/25 12:15 Analysis 7471B 1 450397 F5MW EET CFTotal/NA 04/01/25 15:17 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:07 Client Sample ID: EB-3 (4-6)Lab Sample ID: 310-303009-5 Matrix: SolidDate Collected: 03/27/25 15:20 Date Received: 03/29/25 08:45 Prep 5035 MZR8450780 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:10 Analysis 8260D 1 450781 MZR8 EET CFTotal/NA 04/07/25 17:35 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 18:35 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450703 D2YP EET CFTotal/NA 04/04/25 13:21 Prep WI GRO 450220 P5ZC EET CFTotal/NA 03/31/25 10:48 Analysis WI-GRO 1 450232 P5ZC EET CFTotal/NA 04/01/25 16:23 Prep WI DRO PREP 450423 BDJ4 EET CFTotal/NA 04/02/25 07:20 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 21:28 Eurofins Cedar Falls Page 111 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-3 (4-6)Lab Sample ID: 310-303009-5 Matrix: SolidDate Collected: 03/27/25 15:20 Date Received: 03/29/25 08:45 Prep 3050B QTZ5450148 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 15:01 Prep 7471B 450261 QTZ5 EET CFTotal/NA 04/01/25 12:15 Analysis 7471B 1 450397 F5MW EET CFTotal/NA 04/01/25 15:19 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:07 Client Sample ID: EB-3 (12-14)Lab Sample ID: 310-303009-6 Matrix: SolidDate Collected: 03/27/25 15:25 Date Received: 03/29/25 08:45 Prep 5035 MZR8450780 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:10 Analysis 8260D 1 450781 MZR8 EET CFTotal/NA 04/07/25 17:58 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 18:59 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450703 D2YP EET CFTotal/NA 04/04/25 13:45 Prep WI GRO 450220 P5ZC EET CFTotal/NA 03/31/25 10:48 Analysis WI-GRO 1 450232 P5ZC EET CFTotal/NA 04/01/25 16:49 Prep WI DRO PREP 450423 BDJ4 EET CFTotal/NA 04/02/25 07:20 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 22:44 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 15:04 Prep 7471B 450261 QTZ5 EET CFTotal/NA 04/01/25 12:15 Analysis 7471B 1 450397 F5MW EET CFTotal/NA 04/01/25 15:21 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:07 Client Sample ID: EB-4 (4-6)Lab Sample ID: 310-303009-7 Matrix: SolidDate Collected: 03/27/25 15:30 Date Received: 03/29/25 08:45 Prep 5035 MZR8450780 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:10 Analysis 8260D 1 450781 MZR8 EET CFTotal/NA 04/07/25 18:21 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 19:24 Prep WI GRO 450220 P5ZC EET CFTotal/NA 03/31/25 10:48 Analysis WI-GRO 1 450232 P5ZC EET CFTotal/NA 04/01/25 17:15 Prep WI DRO PREP 450423 BDJ4 EET CFTotal/NA 04/02/25 07:20 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 21:15 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 15:06 Prep 7471B 450261 QTZ5 EET CFTotal/NA 04/01/25 12:15 Analysis 7471B 1 450397 F5MW EET CFTotal/NA 04/01/25 15:23 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:07 Eurofins Cedar Falls Page 112 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-4 (8-10)Lab Sample ID: 310-303009-8 Matrix: SolidDate Collected: 03/27/25 15:35 Date Received: 03/29/25 08:45 Prep 5035 MZR8450782 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:20 Analysis 8260D 1 450785 MZR8 EET CFTotal/NA 04/07/25 23:18 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 19:48 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450703 D2YP EET CFTotal/NA 04/04/25 14:10 Prep WI GRO 450220 P5ZC EET CFTotal/NA 03/31/25 10:48 Analysis WI-GRO 1 450232 P5ZC EET CFTotal/NA 04/01/25 17:41 Prep WI DRO PREP 450551 BDJ4 EET CFTotal/NA 04/03/25 08:35 Analysis WI-DRO 1 451029 C3AA EET CFTotal/NA 04/09/25 08:27 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 15:09 Prep 7471B 450261 QTZ5 EET CFTotal/NA 04/01/25 12:15 Analysis 7471B 1 450397 F5MW EET CFTotal/NA 04/01/25 15:25 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:07 Client Sample ID: EB-5 (4-6)Lab Sample ID: 310-303009-9 Matrix: SolidDate Collected: 03/27/25 15:40 Date Received: 03/29/25 08:45 Prep 5035 MZR8450782 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:20 Analysis 8260D 1 450785 MZR8 EET CFTotal/NA 04/07/25 23:41 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 20:12 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450703 D2YP EET CFTotal/NA 04/04/25 14:34 Prep WI GRO 450220 P5ZC EET CFTotal/NA 03/31/25 10:48 Analysis WI-GRO 1 450232 P5ZC EET CFTotal/NA 04/01/25 18:07 Prep WI DRO PREP 450551 BDJ4 EET CFTotal/NA 04/03/25 08:35 Analysis WI-DRO 1 451029 C3AA EET CFTotal/NA 04/09/25 08:14 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 15:18 Prep 7471B 450262 QTZ5 EET CFTotal/NA 04/03/25 15:44 Analysis 7471B 10 450763 F5MW EET CFTotal/NA 04/04/25 15:36 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:35 Client Sample ID: EB-5 (10-12)Lab Sample ID: 310-303009-10 Matrix: SolidDate Collected: 03/27/25 15:45 Date Received: 03/29/25 08:45 Prep 5035 MZR8450782 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:20 Analysis 8260D 1 450785 MZR8 EET CFTotal/NA 04/08/25 00:04 Eurofins Cedar Falls Page 113 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-5 (10-12)Lab Sample ID: 310-303009-10 Matrix: SolidDate Collected: 03/27/25 15:45 Date Received: 03/29/25 08:45 Prep 3546 BDJ4450458 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 20:36 Prep WI GRO 450220 P5ZC EET CFTotal/NA 03/31/25 10:48 Analysis WI-GRO 1 450232 P5ZC EET CFTotal/NA 04/01/25 18:33 Prep WI DRO PREP 450551 BDJ4 EET CFTotal/NA 04/03/25 08:35 Analysis WI-DRO 1 450909 C3AA EET CFTotal/NA 04/08/25 16:04 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 15:21 Prep 7471B 450262 QTZ5 EET CFTotal/NA 04/03/25 15:44 Analysis 7471B 1 450763 F5MW EET CFTotal/NA 04/04/25 15:29 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:35 Client Sample ID: EB-6 (2-4)Lab Sample ID: 310-303009-11 Matrix: SolidDate Collected: 03/27/25 15:50 Date Received: 03/29/25 08:45 Prep 5035 MZR8450782 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:20 Analysis 8260D 1 450785 MZR8 EET CFTotal/NA 04/08/25 00:27 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 21:00 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450703 D2YP EET CFTotal/NA 04/04/25 15:22 Prep WI GRO 450443 P5ZC EET CFTotal/NA 04/02/25 09:13 Analysis WI-GRO 1 450455 P5ZC EET CFTotal/NA 04/03/25 00:43 Prep WI DRO PREP 450551 BDJ4 EET CFTotal/NA 04/03/25 08:35 Analysis WI-DRO 1 450909 C3AA EET CFTotal/NA 04/08/25 17:35 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 15:23 Prep 7471B 450262 QTZ5 EET CFTotal/NA 04/03/25 15:44 Analysis 7471B 1 450763 F5MW EET CFTotal/NA 04/04/25 15:32 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:35 Client Sample ID: EB-6 (8-10)Lab Sample ID: 310-303009-12 Matrix: SolidDate Collected: 03/27/25 15:55 Date Received: 03/29/25 08:45 Prep 5035 MZR8450782 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:20 Analysis 8260D 1 450785 MZR8 EET CFTotal/NA 04/08/25 00:50 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450564 D2YP EET CFTotal/NA 04/03/25 21:24 Prep 3546 450458 BDJ4 EET CFTotal/NA 04/02/25 10:08 Analysis 8270E 1 450703 D2YP EET CFTotal/NA 04/04/25 15:46 Eurofins Cedar Falls Page 114 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-6 (8-10)Lab Sample ID: 310-303009-12 Matrix: SolidDate Collected: 03/27/25 15:55 Date Received: 03/29/25 08:45 Prep WI GRO P5ZC450443 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/02/25 09:13 Analysis WI-GRO 1 450455 P5ZC EET CFTotal/NA 04/03/25 01:09 Prep WI DRO PREP 450551 BDJ4 EET CFTotal/NA 04/03/25 08:35 Analysis WI-DRO 1 450909 C3AA EET CFTotal/NA 04/08/25 18:40 Prep 3050B 450148 QTZ5 EET CFTotal/NA 04/02/25 12:00 Analysis 6020B 5 450629 NFT2 EET CFTotal/NA 04/03/25 15:25 Prep 7471B 450262 QTZ5 EET CFTotal/NA 04/03/25 15:44 Analysis 7471B 1 450763 F5MW EET CFTotal/NA 04/04/25 15:34 Analysis Moisture 1 450235 W9YR EET CFTotal/NA 03/31/25 11:35 Client Sample ID: Trip Blank - Soil Lab Sample ID: 310-303009-13 Matrix: SolidDate Collected: 03/27/25 08:00 Date Received: 03/29/25 08:45 Prep 5035 MZR8450782 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/07/25 07:20 Analysis 8260D 1 450785 MZR8 EET CFTotal/NA 04/08/25 01:13 Prep WI GRO 450330 P5ZC EET CFTotal/NA 04/01/25 09:25 Analysis WI-GRO 1 450333 P5ZC EET CFTotal/NA 04/02/25 05:22 Client Sample ID: EB-1 Lab Sample ID: 310-303009-14 Matrix: WaterDate Collected: 03/27/25 14:05 Date Received: 03/29/25 08:45 Analysis 8260D WSE81450517 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/03/25 02:29 Prep 3511 450572 P5ZC EET CFTotal/NA 04/03/25 09:40 Analysis 8270E 1 450552 D2YP EET CFTotal/NA 04/03/25 20:04 Analysis WI-GRO 1 450392 P5ZC EET CFTotal/NA 04/02/25 12:03 Prep 3510C 450372 J5BR EET CFTotal/NA 04/01/25 12:54 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 16:19 Filtration Filtration 450221 QTZ5 EET CFDissolved 03/31/25 11:20 Prep 3005A 450316 Y3EC EET CFDissolved 04/01/25 09:30 Analysis 6020B 1 450398 NFT2 EET CFDissolved 04/01/25 15:01 Filtration Filtration 450222 QTZ5 EET CFDissolved 03/31/25 11:20 Prep 7470A 450460 F5MW EET CFDissolved 04/02/25 09:16 Analysis 7470A 1 450514 F5MW EET CFDissolved 04/02/25 12:50 Client Sample ID: EB-3 Lab Sample ID: 310-303009-15 Matrix: WaterDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Analysis 8260D WSE81450517 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/03/25 02:51 Eurofins Cedar Falls Page 115 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Client Sample ID: EB-3 Lab Sample ID: 310-303009-15 Matrix: WaterDate Collected: 03/27/25 15:00 Date Received: 03/29/25 08:45 Prep 3511 P5ZC450572 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/03/25 09:40 Analysis 8270E 1 450552 D2YP EET CFTotal/NA 04/03/25 20:39 Analysis WI-GRO 1 450392 P5ZC EET CFTotal/NA 04/02/25 12:32 Prep 3510C 450372 J5BR EET CFTotal/NA 04/01/25 12:54 Analysis WI-DRO 1 450784 C3AA EET CFTotal/NA 04/07/25 18:41 Filtration Filtration 450221 QTZ5 EET CFDissolved 03/31/25 11:20 Prep 3005A 450316 Y3EC EET CFDissolved 04/01/25 09:30 Analysis 6020B 1 450398 NFT2 EET CFDissolved 04/01/25 15:11 Filtration Filtration 450222 QTZ5 EET CFDissolved 03/31/25 11:20 Prep 7470A 450460 F5MW EET CFDissolved 04/02/25 09:16 Analysis 7470A 1 450514 F5MW EET CFDissolved 04/02/25 12:52 Client Sample ID: Trip Blank - GW Lab Sample ID: 310-303009-16 Matrix: WaterDate Collected: 03/27/25 08:00 Date Received: 03/29/25 08:45 Analysis 8260D WSE81450517 EET CF Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/02/25 21:35 Analysis WI-GRO 1 450392 P5ZC EET CFTotal/NA 04/02/25 06:42 Laboratory References: EET CF = Eurofins Cedar Falls, 3019 Venture Way, Cedar Falls, IA 50613, TEL (319)277-2401 Eurofins Cedar Falls Page 116 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: WSB & Associates, Inc Job ID: 310-303009-1 Project/Site: Monticello Phase II Esa 028376 Laboratory: Eurofins Cedar Falls Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date Minnesota NELAP 019-999-319 12-31-25 The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification . Analysis Method Prep Method Matrix Analyte 8260D Water Dichlorofluoromethane 8260D 5035 Solid Dichlorofluoromethane Moisture Solid Percent Moisture Moisture Solid Percent Solids Eurofins Cedar Falls Page 117 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Method Summary Job ID: 310-303009-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II Esa 028376 Method Method Description LaboratoryProtocol SW8468260DVolatile Organic Compounds by GC/MS EET CF SW8468270ESemivolatile Organic Compounds (GC-MS/MS)EET CF WI-GROWI-GRO Wisconsin - Gasoline Range Organics (GC)EET CF WI-DROWI-DRO Wisconsin - Diesel Range Organics (GC)EET CF SW8466020BMetals (ICP/MS)EET CF SW8467470AMercury (CVAA)EET CF SW8467471BMercury (CVAA)EET CF EPAMoisturePercent Moisture EET CF SW8463005APreparation, Total Metals EET CF SW8463050BPreparation, Metals EET CF SW8463510CLiquid-Liquid Extraction (Separatory Funnel)EET CF SW8463511Microextraction of Organic Compounds EET CF SW8463546Microwave Extraction EET CF SW8465030BPurge and Trap EET CF SW8465035Closed System Purge and Trap EET CF SW8467470APreparation, Mercury EET CF SW8467471BPreparation, Mercury EET CF NoneFiltrationSample Filtration EET CF WI-DROWI DRO PREP Wisconsin Extraction (Diesel Range Organics)EET CF WI-GROWI GRO Closed System Purge and Trap EET CF Protocol References: EPA = US Environmental Protection Agency None = None SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. WI-DRO = "Modified DRO: Method For Determining Diesel Range Organics", Wisconsin DNR, Publ-SW-141, September, 1995. WI-GRO = "Modified GRO: Method For Determining Gasoline Range Organics", Wisconsin DNR, Publ-SW-140, September, 1995. Laboratory References: EET CF = Eurofins Cedar Falls, 3019 Venture Way, Cedar Falls, IA 50613, TEL (319)277-2401 Eurofins Cedar Falls Page 118 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 119 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 120 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 121 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 122 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Login Sample Receipt Checklist Client: WSB & Associates, Inc Job Number: 310-303009-1 Login Number: 303009 Question Answer Comment Creator: Hirsch, Preston List Source: Eurofins Cedar Falls List Number: 1 N/ARadioactivity wasn't checked or is </= background as measured by a survey meter. N/AThe cooler's custody seal, if present, is intact. N/ASample custody seals, if present, are intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable. TrueCooler Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueIs the Field Sampler's name present on COC? TrueThere are no discrepancies between the containers received and the COC. TrueSamples are received within Holding Time (excluding tests with immediate HTs) TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. TrueSample Preservation Verified. TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4"). TrueMultiphasic samples are not present. TrueSamples do not require splitting or compositing. N/AResidual Chlorine Checked. Eurofins Cedar Falls Page 123 of 123 4/10/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ANALYTICAL REPORT PREPARED FOR Attn: Ben Fehr WSB & Associates, Inc 701 Xenia Ave South Suite 300 Minneapolis, Minnesota 55416 Generated 4/9/2025 1:23:15 PM JOB DESCRIPTION Monticello Phase II ESA JOB NUMBER 200-77528-1 See page two for job notes and contact information. South Burlington VT 05403 Suite 11 530 Community Drive Eurofins Burlington Page 1 of 141 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Eurofins Burlington Eurofins Burlington is a laboratory within TestAmerica Laboratories, Inc., a company within Eurofins Environment Testing Group of Companies Job Notes This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins TestAmerica Project Manager. Authorization Generated 4/9/2025 1:23:15 PM Authorized for release by Lee Ann Heathcote, Project Manager II LeeAnn.Heathcote@et.eurofinsus.com (802)923-1028 Page 2 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Table of Contents Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Laboratory Job ID: 200-77528-1 Page 3 of 141 Eurofins Burlington 4/9/2025 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Canister QC Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Clean Canister Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Clean Canister Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Definitions/Glossary Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Qualifiers Air - GC/MS VOA Qualifier Description *+LCS and/or LCSD is outside acceptance limits, high biased. Qualifier U Indicates the analyte was analyzed for but not detected. Air - GC/MS VOA TICs Qualifier Description J Indicates an Estimated Value for TICs Qualifier N This flag indicates the presumptive evidence of a compound. Glossary These commonly used abbreviations may or may not be present in this report. ☼Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Burlington Page 4 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Job Narrative 200-77528-1 Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary Page unless otherwise noted under the individual analysis.Data qualifiers and/or narrative comments are included to explain any exceptions,if applicable. Matrix QC may not be reported if insufficient sample is provided or site-specific QC samples were not submitted.In these situations,to demonstrate precision and accuracy at a batch level,a LCS/LCSD may be performed,unless otherwise specified in the method. Surrogate and/or isotope dilution analyte recoveries (if applicable)which are outside of the QC window are confirmed unless attributed to a dilution or otherwise noted in the narrative. Regulated compliance samples (e.g.SDWA,NPDES)must comply with the associated agency requirements/permits. Receipt The samples were received on 3/29/2025 9:50 AM.Unless otherwise noted below,the samples arrived in good condition. Air -GC/MS VOA Method TO15:The initial calibration verification (ICV)result for analytical batch 200-214760 was above the upper control limit.The affected analyte is Naphthalene.Sample results were non-detects,and have been reported as qualified data. Method TO15:The laboratory control sample (LCS)for analytical batch 200-214760 recovered outside control limits for the following analyte:trans-1,3-Dichloropropene.This analyte was biased high in the LCS and was not detected in the associated samples;therefore,the data have been reported. No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. Case Narrative Client: WSB & Associates, Inc Job ID: 200-77528-1 Project: Monticello Phase II ESA Eurofins Burlington Job ID: 200-77528-1 Eurofins Burlington Page 5 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Detection Summary Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Client Sample ID: SV-1 Lab Sample ID: 200-77528-1 1,3-Butadiene RL 4.4 ug/m3 MDL 4.4 Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA1011TO-15 Dichlorodifluoromethane 25 ug/m325 Total/NA1070TO-15 Client Sample ID: SV-2 Lab Sample ID: 200-77528-2 Benzene RL 6.4 ug/m3 MDL 6.4 Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA1014TO-15 1,3-Butadiene 4.4 ug/m34.4 Total/NA1031TO-15 Heptane, n-8.2 ug/m38.2 Total/NA109.3 TO-15 Propylene 86 ug/m386 Total/NA10130TO-15 Toluene 7.5 ug/m37.5 Total/NA1014TO-15 Client Sample ID: SV-3 Lab Sample ID: 200-77528-3 Benzene RL 6.4 ug/m3 MDL 6.4 Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA1023TO-15 1,3-Butadiene 4.4 ug/m34.4 Total/NA1035TO-15 Ethylbenzene 8.7 ug/m38.7 Total/NA1019TO-15 Heptane, n-8.2 ug/m38.2 Total/NA1014TO-15 Propylene 86 ug/m386 Total/NA10170TO-15 Toluene 7.5 ug/m37.5 Total/NA1030TO-15 Client Sample ID: SV-4 Lab Sample ID: 200-77528-4 Acetone RL 120 ug/m3 MDL 120 Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA10130TO-15 Benzene 6.4 ug/m36.4 Total/NA1016TO-15 1,3-Butadiene 4.4 ug/m34.4 Total/NA1023TO-15 2-Butanone 15 ug/m315 Total/NA1020TO-15 Ethylbenzene 8.7 ug/m38.7 Total/NA1014TO-15 Heptane, n-8.2 ug/m38.2 Total/NA109.5 TO-15 Toluene 7.5 ug/m37.5 Total/NA1023TO-15 Eurofins Burlington This Detection Summary does not include radiochemical test results. Page 6 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Client Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Lab Sample ID: 200-77528-1Client Sample ID: SV-1 Matrix: AirDate Collected: 03/27/25 10:13 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air RL MDL 120 U 120 120 ug/m3 04/02/25 20:57 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 6.4 6.4 ug/m3 04/02/25 20:57 106.4 UBenzene 10 10 ug/m3 04/02/25 20:57 1010UBenzyl chloride 13 13 ug/m3 04/02/25 20:57 1013UBromodichloromethane 21 21 ug/m3 04/02/25 20:57 1021UBromoform 7.8 7.8 ug/m3 04/02/25 20:57 107.8 UBromomethane 4.4 4.4 ug/m3 04/02/25 20:57 10111,3-Butadiene 15 15 ug/m3 04/02/25 20:57 1015U2-Butanone 16 16 ug/m3 04/02/25 20:57 1016UCarbon disulfide 13 13 ug/m3 04/02/25 20:57 1013UCarbon tetrachloride 9.2 9.2 ug/m3 04/02/25 20:57 109.2 UChlorobenzene 13 13 ug/m3 04/02/25 20:57 1013UChloroethane 9.8 9.8 ug/m3 04/02/25 20:57 109.8 UChloroform 10 10 ug/m3 04/02/25 20:57 1010UChloromethane 6.9 6.9 ug/m3 04/02/25 20:57 106.9 UCyclohexane 17 17 ug/m3 04/02/25 20:57 1017UDibromochloromethane 15 15 ug/m3 04/02/25 20:57 1015U1,2-Dibromoethane 12 12 ug/m3 04/02/25 20:57 1012U1,2-Dichlorobenzene 12 12 ug/m3 04/02/25 20:57 1012U1,3-Dichlorobenzene 12 12 ug/m3 04/02/25 20:57 1012U1,4-Dichlorobenzene 25 25 ug/m3 04/02/25 20:57 1070Dichlorodifluoromethane 8.1 8.1 ug/m3 04/02/25 20:57 108.1 U1,1-Dichloroethane 8.1 8.1 ug/m3 04/02/25 20:57 108.1 U1,2-Dichloroethane 7.9 7.9 ug/m3 04/02/25 20:57 107.9 U1,1-Dichloroethene 7.9 7.9 ug/m3 04/02/25 20:57 107.9 UDichloroethylene, 1,2-, cis- 7.9 7.9 ug/m3 04/02/25 20:57 107.9 UDichloroethylene, 1,2-, trans- 9.2 9.2 ug/m3 04/02/25 20:57 109.2 U1,2-Dichloropropane 9.1 9.1 ug/m3 04/02/25 20:57 109.1 UDichloropropene, cis 1,3- 9.1 9.1 ug/m3 04/02/25 20:57 109.1 U *+Dichloropropene, 1,3-, trans- 14 14 ug/m3 04/02/25 20:57 1014U1,2-Dichlorotetrafluoroethane 94 94 ug/m3 04/02/25 20:57 1094UEthanol 180 180 ug/m3 04/02/25 20:57 10180UEthyl acetate 8.7 8.7 ug/m3 04/02/25 20:57 108.7 UEthylbenzene 9.8 9.8 ug/m3 04/02/25 20:57 109.8 U4-Ethyltoluene 8.2 8.2 ug/m3 04/02/25 20:57 108.2 UHeptane, n- 21 21 ug/m3 04/02/25 20:57 1021UHexachlorobutadiene 18 18 ug/m3 04/02/25 20:57 1018UHexane, n- 20 20 ug/m3 04/02/25 20:57 1020U2-Hexanone 17 17 ug/m3 04/02/25 20:57 1017UMethylene Chloride 20 20 ug/m3 04/02/25 20:57 1020U4-Methyl-2-pentanone (MIBK) 7.2 7.2 ug/m3 04/02/25 20:57 107.2 UMethyl tert-butyl ether 26 26 ug/m3 04/02/25 20:57 1026UNaphthalene 120 120 ug/m3 04/02/25 20:57 10120U2-Propanol 86 86 ug/m3 04/02/25 20:57 1086UPropylene 8.5 8.5 ug/m3 04/02/25 20:57 108.5 UStyrene 14 14 ug/m3 04/02/25 20:57 1014U1,1,2,2-Tetrachloroethane 14 14 ug/m3 04/02/25 20:57 1014UTetrachloroethene 150 150 ug/m3 04/02/25 20:57 10150UTetrahydrofuran Eurofins Burlington Page 7 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Client Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Lab Sample ID: 200-77528-1Client Sample ID: SV-1 Matrix: AirDate Collected: 03/27/25 10:13 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL 7.5 U 7.5 7.5 ug/m3 04/02/25 20:57 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Toluene 37 37 ug/m3 04/02/25 20:57 1037U1,2,4-Trichlorobenzene 11 11 ug/m3 04/02/25 20:57 1011U1,1,1-Trichloroethane 11 11 ug/m3 04/02/25 20:57 1011U1,1,2-Trichloroethane 11 11 ug/m3 04/02/25 20:57 1011UTrichloroethene 11 11 ug/m3 04/02/25 20:57 1011UTrichlorofluoromethane 15 15 ug/m3 04/02/25 20:57 1015U1,1,2-Trichlorotrifluoroethane 9.8 9.8 ug/m3 04/02/25 20:57 109.8 U1,2,4-Trimethylbenzene 9.8 9.8 ug/m3 04/02/25 20:57 109.8 U1,3,5-Trimethylbenzene 180 180 ug/m3 04/02/25 20:57 10180UVinyl acetate 5.1 5.1 ug/m3 04/02/25 20:57 105.1 UVinyl chloride 22 22 ug/m3 04/02/25 20:57 1022UXylene, m&p 8.7 8.7 ug/m3 04/02/25 20:57 108.7 UXylene, o- Tentatively Identified Compound None ppb v/v N/A 04/02/25 20:57 10 Tentatively Identified Compound Dil FacAnalyzedPreparedUnitDQualifierEst. Result CAS No.RT Lab Sample ID: 200-77528-2Client Sample ID: SV-2 Matrix: AirDate Collected: 03/27/25 10:27 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air RL MDL 120 U 120 120 ug/m3 04/02/25 22:39 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 6.4 6.4 ug/m3 04/02/25 22:39 1014Benzene 10 10 ug/m3 04/02/25 22:39 1010UBenzyl chloride 13 13 ug/m3 04/02/25 22:39 1013UBromodichloromethane 21 21 ug/m3 04/02/25 22:39 1021UBromoform 7.8 7.8 ug/m3 04/02/25 22:39 107.8 UBromomethane 4.4 4.4 ug/m3 04/02/25 22:39 10311,3-Butadiene 15 15 ug/m3 04/02/25 22:39 1015U2-Butanone 16 16 ug/m3 04/02/25 22:39 1016UCarbon disulfide 13 13 ug/m3 04/02/25 22:39 1013UCarbon tetrachloride 9.2 9.2 ug/m3 04/02/25 22:39 109.2 UChlorobenzene 13 13 ug/m3 04/02/25 22:39 1013UChloroethane 9.8 9.8 ug/m3 04/02/25 22:39 109.8 UChloroform 10 10 ug/m3 04/02/25 22:39 1010UChloromethane 6.9 6.9 ug/m3 04/02/25 22:39 106.9 UCyclohexane 17 17 ug/m3 04/02/25 22:39 1017UDibromochloromethane 15 15 ug/m3 04/02/25 22:39 1015U1,2-Dibromoethane 12 12 ug/m3 04/02/25 22:39 1012U1,2-Dichlorobenzene 12 12 ug/m3 04/02/25 22:39 1012U1,3-Dichlorobenzene 12 12 ug/m3 04/02/25 22:39 1012U1,4-Dichlorobenzene 25 25 ug/m3 04/02/25 22:39 1025UDichlorodifluoromethane 8.1 8.1 ug/m3 04/02/25 22:39 108.1 U1,1-Dichloroethane 8.1 8.1 ug/m3 04/02/25 22:39 108.1 U1,2-Dichloroethane 7.9 7.9 ug/m3 04/02/25 22:39 107.9 U1,1-Dichloroethene 7.9 7.9 ug/m3 04/02/25 22:39 107.9 UDichloroethylene, 1,2-, cis- Eurofins Burlington Page 8 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Client Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Lab Sample ID: 200-77528-2Client Sample ID: SV-2 Matrix: AirDate Collected: 03/27/25 10:27 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL 7.9 U 7.9 7.9 ug/m3 04/02/25 22:39 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Dichloroethylene, 1,2-, trans- 9.2 9.2 ug/m3 04/02/25 22:39 109.2 U1,2-Dichloropropane 9.1 9.1 ug/m3 04/02/25 22:39 109.1 UDichloropropene, cis 1,3- 9.1 9.1 ug/m3 04/02/25 22:39 109.1 U *+Dichloropropene, 1,3-, trans- 14 14 ug/m3 04/02/25 22:39 1014U1,2-Dichlorotetrafluoroethane 94 94 ug/m3 04/02/25 22:39 1094UEthanol 180 180 ug/m3 04/02/25 22:39 10180UEthyl acetate 8.7 8.7 ug/m3 04/02/25 22:39 108.7 UEthylbenzene 9.8 9.8 ug/m3 04/02/25 22:39 109.8 U4-Ethyltoluene 8.2 8.2 ug/m3 04/02/25 22:39 109.3Heptane, n- 21 21 ug/m3 04/02/25 22:39 1021UHexachlorobutadiene 18 18 ug/m3 04/02/25 22:39 1018UHexane, n- 20 20 ug/m3 04/02/25 22:39 1020U2-Hexanone 17 17 ug/m3 04/02/25 22:39 1017UMethylene Chloride 20 20 ug/m3 04/02/25 22:39 1020U4-Methyl-2-pentanone (MIBK) 7.2 7.2 ug/m3 04/02/25 22:39 107.2 UMethyl tert-butyl ether 26 26 ug/m3 04/02/25 22:39 1026UNaphthalene 120 120 ug/m3 04/02/25 22:39 10120U2-Propanol 86 86 ug/m3 04/02/25 22:39 10130Propylene 8.5 8.5 ug/m3 04/02/25 22:39 108.5 UStyrene 14 14 ug/m3 04/02/25 22:39 1014U1,1,2,2-Tetrachloroethane 14 14 ug/m3 04/02/25 22:39 1014UTetrachloroethene 150 150 ug/m3 04/02/25 22:39 10150UTetrahydrofuran 7.5 7.5 ug/m3 04/02/25 22:39 1014Toluene 37 37 ug/m3 04/02/25 22:39 1037U1,2,4-Trichlorobenzene 11 11 ug/m3 04/02/25 22:39 1011U1,1,1-Trichloroethane 11 11 ug/m3 04/02/25 22:39 1011U1,1,2-Trichloroethane 11 11 ug/m3 04/02/25 22:39 1011UTrichloroethene 11 11 ug/m3 04/02/25 22:39 1011UTrichlorofluoromethane 15 15 ug/m3 04/02/25 22:39 1015U1,1,2-Trichlorotrifluoroethane 9.8 9.8 ug/m3 04/02/25 22:39 109.8 U1,2,4-Trimethylbenzene 9.8 9.8 ug/m3 04/02/25 22:39 109.8 U1,3,5-Trimethylbenzene 180 180 ug/m3 04/02/25 22:39 10180UVinyl acetate 5.1 5.1 ug/m3 04/02/25 22:39 105.1 UVinyl chloride 22 22 ug/m3 04/02/25 22:39 1022UXylene, m&p 8.7 8.7 ug/m3 04/02/25 22:39 108.7 UXylene, o- Allene 11 J N ppb v/v 4.59 463-49-0 04/02/25 22:39 10 Tentatively Identified Compound Dil FacAnalyzedPreparedUnitDQualifierEst. Result CAS No.RT 1004/02/25 22:39J N1-Propene, 2-methyl-115-11-719ppb v/v 5.12 1004/02/25 22:39JUnknownN/A11ppb v/v 5.18 1004/02/25 22:39JUnknownN/A12ppb v/v 5.50 1004/02/25 22:39J NButane, 2-methyl-78-78-411ppb v/v 6.53 1004/02/25 22:39JUnknownN/A12ppb v/v 7.13 1004/02/25 22:39J N1,3-Cyclopentadiene 542-92-712ppb v/v 8.55 Eurofins Burlington Page 9 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Client Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Lab Sample ID: 200-77528-3Client Sample ID: SV-3 Matrix: AirDate Collected: 03/27/25 10:46 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air RL MDL 120 U 120 120 ug/m3 04/03/25 01:13 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 6.4 6.4 ug/m3 04/03/25 01:13 1023Benzene 10 10 ug/m3 04/03/25 01:13 1010UBenzyl chloride 13 13 ug/m3 04/03/25 01:13 1013UBromodichloromethane 21 21 ug/m3 04/03/25 01:13 1021UBromoform 7.8 7.8 ug/m3 04/03/25 01:13 107.8 UBromomethane 4.4 4.4 ug/m3 04/03/25 01:13 10351,3-Butadiene 15 15 ug/m3 04/03/25 01:13 1015U2-Butanone 16 16 ug/m3 04/03/25 01:13 1016UCarbon disulfide 13 13 ug/m3 04/03/25 01:13 1013UCarbon tetrachloride 9.2 9.2 ug/m3 04/03/25 01:13 109.2 UChlorobenzene 13 13 ug/m3 04/03/25 01:13 1013UChloroethane 9.8 9.8 ug/m3 04/03/25 01:13 109.8 UChloroform 10 10 ug/m3 04/03/25 01:13 1010UChloromethane 6.9 6.9 ug/m3 04/03/25 01:13 106.9 UCyclohexane 17 17 ug/m3 04/03/25 01:13 1017UDibromochloromethane 15 15 ug/m3 04/03/25 01:13 1015U1,2-Dibromoethane 12 12 ug/m3 04/03/25 01:13 1012U1,2-Dichlorobenzene 12 12 ug/m3 04/03/25 01:13 1012U1,3-Dichlorobenzene 12 12 ug/m3 04/03/25 01:13 1012U1,4-Dichlorobenzene 25 25 ug/m3 04/03/25 01:13 1025UDichlorodifluoromethane 8.1 8.1 ug/m3 04/03/25 01:13 108.1 U1,1-Dichloroethane 8.1 8.1 ug/m3 04/03/25 01:13 108.1 U1,2-Dichloroethane 7.9 7.9 ug/m3 04/03/25 01:13 107.9 U1,1-Dichloroethene 7.9 7.9 ug/m3 04/03/25 01:13 107.9 UDichloroethylene, 1,2-, cis- 7.9 7.9 ug/m3 04/03/25 01:13 107.9 UDichloroethylene, 1,2-, trans- 9.2 9.2 ug/m3 04/03/25 01:13 109.2 U1,2-Dichloropropane 9.1 9.1 ug/m3 04/03/25 01:13 109.1 UDichloropropene, cis 1,3- 9.1 9.1 ug/m3 04/03/25 01:13 109.1 U *+Dichloropropene, 1,3-, trans- 14 14 ug/m3 04/03/25 01:13 1014U1,2-Dichlorotetrafluoroethane 94 94 ug/m3 04/03/25 01:13 1094UEthanol 180 180 ug/m3 04/03/25 01:13 10180UEthyl acetate 8.7 8.7 ug/m3 04/03/25 01:13 1019Ethylbenzene 9.8 9.8 ug/m3 04/03/25 01:13 109.8 U4-Ethyltoluene 8.2 8.2 ug/m3 04/03/25 01:13 1014Heptane, n- 21 21 ug/m3 04/03/25 01:13 1021UHexachlorobutadiene 18 18 ug/m3 04/03/25 01:13 1018UHexane, n- 20 20 ug/m3 04/03/25 01:13 1020U2-Hexanone 17 17 ug/m3 04/03/25 01:13 1017UMethylene Chloride 20 20 ug/m3 04/03/25 01:13 1020U4-Methyl-2-pentanone (MIBK) 7.2 7.2 ug/m3 04/03/25 01:13 107.2 UMethyl tert-butyl ether 26 26 ug/m3 04/03/25 01:13 1026UNaphthalene 120 120 ug/m3 04/03/25 01:13 10120U2-Propanol 86 86 ug/m3 04/03/25 01:13 10170Propylene 8.5 8.5 ug/m3 04/03/25 01:13 108.5 UStyrene 14 14 ug/m3 04/03/25 01:13 1014U1,1,2,2-Tetrachloroethane 14 14 ug/m3 04/03/25 01:13 1014UTetrachloroethene 150 150 ug/m3 04/03/25 01:13 10150UTetrahydrofuran Eurofins Burlington Page 10 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Client Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Lab Sample ID: 200-77528-3Client Sample ID: SV-3 Matrix: AirDate Collected: 03/27/25 10:46 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL 30 7.5 7.5 ug/m3 04/03/25 01:13 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Toluene 37 37 ug/m3 04/03/25 01:13 1037U1,2,4-Trichlorobenzene 11 11 ug/m3 04/03/25 01:13 1011U1,1,1-Trichloroethane 11 11 ug/m3 04/03/25 01:13 1011U1,1,2-Trichloroethane 11 11 ug/m3 04/03/25 01:13 1011UTrichloroethene 11 11 ug/m3 04/03/25 01:13 1011UTrichlorofluoromethane 15 15 ug/m3 04/03/25 01:13 1015U1,1,2-Trichlorotrifluoroethane 9.8 9.8 ug/m3 04/03/25 01:13 109.8 U1,2,4-Trimethylbenzene 9.8 9.8 ug/m3 04/03/25 01:13 109.8 U1,3,5-Trimethylbenzene 180 180 ug/m3 04/03/25 01:13 10180UVinyl acetate 5.1 5.1 ug/m3 04/03/25 01:13 105.1 UVinyl chloride 22 22 ug/m3 04/03/25 01:13 1022UXylene, m&p 8.7 8.7 ug/m3 04/03/25 01:13 108.7 UXylene, o- Propyne 14 J N ppb v/v 4.59 74-99-7 04/03/25 01:13 10 Tentatively Identified Compound Dil FacAnalyzedPreparedUnitDQualifierEst. Result CAS No.RT 1004/03/25 01:13JUnknownN/A12ppb v/v 4.78 1004/03/25 01:13J N1-Propene, 2-methyl-115-11-728ppb v/v 5.12 1004/03/25 01:13JUnknownN/A13ppb v/v 5.18 1004/03/25 01:13JUnknownN/A16ppb v/v 5.50 1004/03/25 01:13J NButane, 2-methyl-78-78-413ppb v/v 6.53 1004/03/25 01:13JUnknownN/A15ppb v/v 7.14 1004/03/25 01:13J N1,3-Cyclopentadiene 542-92-717ppb v/v 8.55 1004/03/25 01:13J NCyclotrisiloxane, hexamethyl-541-05-914ppb v/v 16.98 Lab Sample ID: 200-77528-4Client Sample ID: SV-4 Matrix: AirDate Collected: 03/27/25 11:05 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air RL MDL 130 120 120 ug/m3 04/03/25 02:04 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Acetone 6.4 6.4 ug/m3 04/03/25 02:04 1016Benzene 10 10 ug/m3 04/03/25 02:04 1010UBenzyl chloride 13 13 ug/m3 04/03/25 02:04 1013UBromodichloromethane 21 21 ug/m3 04/03/25 02:04 1021UBromoform 7.8 7.8 ug/m3 04/03/25 02:04 107.8 UBromomethane 4.4 4.4 ug/m3 04/03/25 02:04 10231,3-Butadiene 15 15 ug/m3 04/03/25 02:04 10202-Butanone 16 16 ug/m3 04/03/25 02:04 1016UCarbon disulfide 13 13 ug/m3 04/03/25 02:04 1013UCarbon tetrachloride 9.2 9.2 ug/m3 04/03/25 02:04 109.2 UChlorobenzene 13 13 ug/m3 04/03/25 02:04 1013UChloroethane 9.8 9.8 ug/m3 04/03/25 02:04 109.8 UChloroform 10 10 ug/m3 04/03/25 02:04 1010UChloromethane 6.9 6.9 ug/m3 04/03/25 02:04 106.9 UCyclohexane 17 17 ug/m3 04/03/25 02:04 1017UDibromochloromethane 15 15 ug/m3 04/03/25 02:04 1015U1,2-Dibromoethane Eurofins Burlington Page 11 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Client Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Lab Sample ID: 200-77528-4Client Sample ID: SV-4 Matrix: AirDate Collected: 03/27/25 11:05 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL 12 U 12 12 ug/m3 04/03/25 02:04 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,2-Dichlorobenzene 12 12 ug/m3 04/03/25 02:04 1012U1,3-Dichlorobenzene 12 12 ug/m3 04/03/25 02:04 1012U1,4-Dichlorobenzene 25 25 ug/m3 04/03/25 02:04 1025UDichlorodifluoromethane 8.1 8.1 ug/m3 04/03/25 02:04 108.1 U1,1-Dichloroethane 8.1 8.1 ug/m3 04/03/25 02:04 108.1 U1,2-Dichloroethane 7.9 7.9 ug/m3 04/03/25 02:04 107.9 U1,1-Dichloroethene 7.9 7.9 ug/m3 04/03/25 02:04 107.9 UDichloroethylene, 1,2-, cis- 7.9 7.9 ug/m3 04/03/25 02:04 107.9 UDichloroethylene, 1,2-, trans- 9.2 9.2 ug/m3 04/03/25 02:04 109.2 U1,2-Dichloropropane 9.1 9.1 ug/m3 04/03/25 02:04 109.1 UDichloropropene, cis 1,3- 9.1 9.1 ug/m3 04/03/25 02:04 109.1 U *+Dichloropropene, 1,3-, trans- 14 14 ug/m3 04/03/25 02:04 1014U1,2-Dichlorotetrafluoroethane 94 94 ug/m3 04/03/25 02:04 1094UEthanol 180 180 ug/m3 04/03/25 02:04 10180UEthyl acetate 8.7 8.7 ug/m3 04/03/25 02:04 1014Ethylbenzene 9.8 9.8 ug/m3 04/03/25 02:04 109.8 U4-Ethyltoluene 8.2 8.2 ug/m3 04/03/25 02:04 109.5Heptane, n- 21 21 ug/m3 04/03/25 02:04 1021UHexachlorobutadiene 18 18 ug/m3 04/03/25 02:04 1018UHexane, n- 20 20 ug/m3 04/03/25 02:04 1020U2-Hexanone 17 17 ug/m3 04/03/25 02:04 1017UMethylene Chloride 20 20 ug/m3 04/03/25 02:04 1020U4-Methyl-2-pentanone (MIBK) 7.2 7.2 ug/m3 04/03/25 02:04 107.2 UMethyl tert-butyl ether 26 26 ug/m3 04/03/25 02:04 1026UNaphthalene 120 120 ug/m3 04/03/25 02:04 10120U2-Propanol 86 86 ug/m3 04/03/25 02:04 1086UPropylene 8.5 8.5 ug/m3 04/03/25 02:04 108.5 UStyrene 14 14 ug/m3 04/03/25 02:04 1014U1,1,2,2-Tetrachloroethane 14 14 ug/m3 04/03/25 02:04 1014UTetrachloroethene 150 150 ug/m3 04/03/25 02:04 10150UTetrahydrofuran 7.5 7.5 ug/m3 04/03/25 02:04 1023Toluene 37 37 ug/m3 04/03/25 02:04 1037U1,2,4-Trichlorobenzene 11 11 ug/m3 04/03/25 02:04 1011U1,1,1-Trichloroethane 11 11 ug/m3 04/03/25 02:04 1011U1,1,2-Trichloroethane 11 11 ug/m3 04/03/25 02:04 1011UTrichloroethene 11 11 ug/m3 04/03/25 02:04 1011UTrichlorofluoromethane 15 15 ug/m3 04/03/25 02:04 1015U1,1,2-Trichlorotrifluoroethane 9.8 9.8 ug/m3 04/03/25 02:04 109.8 U1,2,4-Trimethylbenzene 9.8 9.8 ug/m3 04/03/25 02:04 109.8 U1,3,5-Trimethylbenzene 180 180 ug/m3 04/03/25 02:04 10180UVinyl acetate 5.1 5.1 ug/m3 04/03/25 02:04 105.1 UVinyl chloride 22 22 ug/m3 04/03/25 02:04 1022UXylene, m&p 8.7 8.7 ug/m3 04/03/25 02:04 108.7 UXylene, o- Propyne 12 J N ppb v/v 4.58 74-99-7 04/03/25 02:04 10 Tentatively Identified Compound Dil FacAnalyzedPreparedUnitDQualifierEst. Result CAS No.RT 1004/03/25 02:04J N1-Propene, 2-methyl-115-11-718ppb v/v 5.11 1004/03/25 02:04JUnknownN/A18ppb v/v 5.49 Eurofins Burlington Page 12 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Client Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Lab Sample ID: 200-77528-4Client Sample ID: SV-4 Matrix: AirDate Collected: 03/27/25 11:05 Date Received: 03/29/25 09:50 Sample Container: Summa Canister 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) 1,3-Cyclopentadiene 14 J N ppb v/v 8.55 542-92-7 04/03/25 02:04 10 Tentatively Identified Compound Dil FacAnalyzedPreparedUnitDQualifierEst. Result CAS No.RT 1004/03/25 02:04J NCyclotrisiloxane, hexamethyl-541-05-913ppb v/v 16.98 Eurofins Burlington Page 13 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 QC Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Method: TO-15 - Volatile Organic Compounds in Ambient Air Client Sample ID: Method BlankLab Sample ID: MB 200-214760/4 Matrix: Air Prep Type: Total/NA Analysis Batch: 214760 RL MDL Acetone 12 U 12 12 ug/m3 04/02/25 09:43 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 0.64 U 0.640.64 ug/m3 04/02/25 09:43 1Benzene 1.0 U 1.01.0 ug/m3 04/02/25 09:43 1Benzyl chloride 1.3 U 1.31.3 ug/m3 04/02/25 09:43 1Bromodichloromethane 2.1 U 2.12.1 ug/m3 04/02/25 09:43 1Bromoform 0.78 U 0.780.78 ug/m3 04/02/25 09:43 1Bromomethane 0.44 U 0.440.44 ug/m3 04/02/25 09:43 11,3-Butadiene 1.5 U 1.51.5 ug/m3 04/02/25 09:43 12-Butanone 1.6 U 1.61.6 ug/m3 04/02/25 09:43 1Carbon disulfide 1.3 U 1.31.3 ug/m3 04/02/25 09:43 1Carbon tetrachloride 0.92 U 0.920.92 ug/m3 04/02/25 09:43 1Chlorobenzene 1.3 U 1.31.3 ug/m3 04/02/25 09:43 1Chloroethane 0.98 U 0.980.98 ug/m3 04/02/25 09:43 1Chloroform 1.0 U 1.01.0 ug/m3 04/02/25 09:43 1Chloromethane 0.69 U 0.690.69 ug/m3 04/02/25 09:43 1Cyclohexane 1.7 U 1.71.7 ug/m3 04/02/25 09:43 1Dibromochloromethane 1.5 U 1.51.5 ug/m3 04/02/25 09:43 11,2-Dibromoethane 1.2 U 1.21.2 ug/m3 04/02/25 09:43 11,2-Dichlorobenzene 1.2 U 1.21.2 ug/m3 04/02/25 09:43 11,3-Dichlorobenzene 1.2 U 1.21.2 ug/m3 04/02/25 09:43 11,4-Dichlorobenzene 2.5 U 2.52.5 ug/m3 04/02/25 09:43 1Dichlorodifluoromethane 0.81 U 0.810.81 ug/m3 04/02/25 09:43 11,1-Dichloroethane 0.81 U 0.810.81 ug/m3 04/02/25 09:43 11,2-Dichloroethane 0.79 U 0.790.79 ug/m3 04/02/25 09:43 11,1-Dichloroethene 0.79 U 0.790.79 ug/m3 04/02/25 09:43 1Dichloroethylene, 1,2-, cis- 0.79 U 0.790.79 ug/m3 04/02/25 09:43 1Dichloroethylene, 1,2-, trans- 0.92 U 0.920.92 ug/m3 04/02/25 09:43 11,2-Dichloropropane 0.91 U 0.910.91 ug/m3 04/02/25 09:43 1Dichloropropene, cis 1,3- 0.91 U 0.910.91 ug/m3 04/02/25 09:43 1Dichloropropene, 1,3-, trans- 1.4 U 1.41.4 ug/m3 04/02/25 09:43 11,2-Dichlorotetrafluoroethane 9.4 U 9.49.4 ug/m3 04/02/25 09:43 1Ethanol 18 U 1818 ug/m3 04/02/25 09:43 1Ethyl acetate 0.87 U 0.870.87 ug/m3 04/02/25 09:43 1Ethylbenzene 0.98 U 0.980.98 ug/m3 04/02/25 09:43 14-Ethyltoluene 0.82 U 0.820.82 ug/m3 04/02/25 09:43 1Heptane, n- 2.1 U 2.12.1 ug/m3 04/02/25 09:43 1Hexachlorobutadiene 1.8 U 1.81.8 ug/m3 04/02/25 09:43 1Hexane, n- 2.0 U 2.02.0 ug/m3 04/02/25 09:43 12-Hexanone 1.7 U 1.71.7 ug/m3 04/02/25 09:43 1Methylene Chloride 2.0 U 2.02.0 ug/m3 04/02/25 09:43 14-Methyl-2-pentanone (MIBK) 0.72 U 0.720.72 ug/m3 04/02/25 09:43 1Methyl tert-butyl ether 2.6 U 2.62.6 ug/m3 04/02/25 09:43 1Naphthalene 12 U 1212 ug/m3 04/02/25 09:43 12-Propanol 8.6 U 8.68.6 ug/m3 04/02/25 09:43 1Propylene 0.85 U 0.850.85 ug/m3 04/02/25 09:43 1Styrene 1.4 U 1.41.4 ug/m3 04/02/25 09:43 11,1,2,2-Tetrachloroethane 1.4 U 1.41.4 ug/m3 04/02/25 09:43 1Tetrachloroethene 15 U 1515 ug/m3 04/02/25 09:43 1Tetrahydrofuran Eurofins Burlington Page 14 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 QC Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Method BlankLab Sample ID: MB 200-214760/4 Matrix: Air Prep Type: Total/NA Analysis Batch: 214760 RL MDL Toluene 0.75 U 0.75 0.75 ug/m3 04/02/25 09:43 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 3.7 U 3.73.7 ug/m3 04/02/25 09:43 11,2,4-Trichlorobenzene 1.1 U 1.11.1 ug/m3 04/02/25 09:43 11,1,1-Trichloroethane 1.1 U 1.11.1 ug/m3 04/02/25 09:43 11,1,2-Trichloroethane 1.1 U 1.11.1 ug/m3 04/02/25 09:43 1Trichloroethene 1.1 U 1.11.1 ug/m3 04/02/25 09:43 1Trichlorofluoromethane 1.5 U 1.51.5 ug/m3 04/02/25 09:43 11,1,2-Trichlorotrifluoroethane 0.98 U 0.980.98 ug/m3 04/02/25 09:43 11,2,4-Trimethylbenzene 0.98 U 0.980.98 ug/m3 04/02/25 09:43 11,3,5-Trimethylbenzene 18 U 1818 ug/m3 04/02/25 09:43 1Vinyl acetate 0.51 U 0.510.51 ug/m3 04/02/25 09:43 1Vinyl chloride 2.2 U 2.22.2 ug/m3 04/02/25 09:43 1Xylene, m&p 0.87 U 0.870.87 ug/m3 04/02/25 09:43 1Xylene, o- Tentatively Identified Compound None ppb v/v N/A 04/02/25 09:43 1 MB MB Tentatively Identified Compound Dil FacPreparedAnalyzedDUnitQualifierEst. Result RT CAS No. Client Sample ID: Lab Control SampleLab Sample ID: LCS 200-214760/3 Matrix: Air Prep Type: Total/NA Analysis Batch: 214760 Acetone 23.7 26.3 ug/m3 111 54 -154 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Benzene 31.9 35.7 ug/m3 112 73 -119 Benzyl chloride 51.8 67.3 ug/m3 130 60 -136 Bromodichloromethane 67.0 78.4 ug/m3 117 75 -127 Bromoform 103 118 ug/m3 114 53 -149 Bromomethane 38.8 33.5 ug/m3 86 72 -124 1,3-Butadiene 22.1 24.9 ug/m3 113 58 -139 2-Butanone 29.5 27.5 ug/m3 93 72 -124 Carbon disulfide 31.1 31.9 ug/m3 103 71 -138 Carbon tetrachloride 62.9 74.5 ug/m3 118 71 -133 Chlorobenzene 46.0 50.6 ug/m3 110 76 -119 Chloroethane 26.4 23.2 ug/m3 88 68 -130 Chloroform 48.8 55.5 ug/m3 114 73 -124 Chloromethane 20.6 19.3 ug/m3 93 56 -141 Cyclohexane 34.4 38.0 ug/m3 110 76 -124 Dibromochloromethane 85.2 94.6 ug/m3 111 73 -125 1,2-Dibromoethane 76.8 85.1 ug/m3 111 78 -122 1,2-Dichlorobenzene 60.1 70.2 ug/m3 117 68 -129 1,3-Dichlorobenzene 60.1 70.3 ug/m3 117 69 -131 1,4-Dichlorobenzene 60.1 71.7 ug/m3 119 67 -132 Dichlorodifluoromethane 49.4 43.9 ug/m3 89 61 -142 1,1-Dichloroethane 40.5 46.9 ug/m3 116 66 -130 1,2-Dichloroethane 40.5 47.7 ug/m3 118 68 -135 1,1-Dichloroethene 39.6 36.5 ug/m3 92 68 -120 Dichloroethylene, 1,2-, cis-39.6 43.1 ug/m3 109 72 -121 Dichloroethylene, 1,2-, trans-39.6 48.5 ug/m3 122 69 -137 Eurofins Burlington Page 15 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 QC Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 200-214760/3 Matrix: Air Prep Type: Total/NA Analysis Batch: 214760 1,2-Dichloropropane 46.2 53.7 ug/m3 116 69 -128 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Dichloropropene, cis 1,3-45.4 52.6 ug/m3 116 74 -125 Dichloropropene, 1,3-, trans-45.4 58.4 *+ug/m3 129 74 -128 1,2-Dichlorotetrafluoroethane 69.9 62.6 ug/m3 90 71 -141 Ethanol 28.3 25.1 ug/m3 89 50 -150 Ethyl acetate 36.0 40.0 ug/m3 111 70 -131 Ethylbenzene 43.4 49.6 ug/m3 114 74 -122 4-Ethyltoluene 49.2 59.3 ug/m3 121 75 -129 Heptane, n-41.0 49.7 ug/m3 121 60 -142 Hexachlorobutadiene 107 131 ug/m3 122 58 -130 Hexane, n-35.2 41.0 ug/m3 116 63 -138 2-Hexanone 41.0 51.0 ug/m3 124 57 -143 Methylene Chloride 34.7 39.7 ug/m3 114 59 -137 4-Methyl-2-pentanone (MIBK)41.0 49.9 ug/m3 122 58 -144 Methyl tert-butyl ether 36.0 41.7 ug/m3 116 70 -127 Naphthalene 52.4 73.1 ug/m3 139 50 -150 2-Propanol 24.6 28.3 ug/m3 115 53 -142 Propylene 17.2 17.1 ug/m3 99 50 -158 Styrene 42.6 51.1 ug/m3 120 74 -125 1,1,2,2-Tetrachloroethane 68.6 79.7 ug/m3 116 74 -126 Tetrachloroethene 67.8 74.8 ug/m3 110 70 -125 Tetrahydrofuran 29.5 33.6 ug/m3 114 60 -149 Toluene 37.7 41.8 ug/m3 111 75 -122 1,2,4-Trichlorobenzene 74.2 95.3 ug/m3 128 50 -150 1,1,1-Trichloroethane 54.6 61.7 ug/m3 113 72 -127 1,1,2-Trichloroethane 54.6 61.9 ug/m3 113 75 -126 Trichloroethene 53.7 60.5 ug/m3 113 73 -122 Trichlorofluoromethane 56.2 49.0 ug/m3 87 70 -129 1,1,2-Trichlorotrifluoroethane 76.6 70.9 ug/m3 92 70 -121 1,2,4-Trimethylbenzene 49.2 59.1 ug/m3 120 71 -129 1,3,5-Trimethylbenzene 49.2 58.7 ug/m3 119 72 -126 Vinyl acetate 35.2 45.8 ug/m3 130 59 -149 Vinyl chloride 25.6 29.8 ug/m3 117 61 -135 Xylene, m&p 86.8 99.2 ug/m3 114 76 -121 Xylene, o-43.4 49.5 ug/m3 114 73 -123 Client Sample ID: SV-1Lab Sample ID: 200-77528-1 DU Matrix: Air Prep Type: Total/NA Analysis Batch: 214760 Acetone 120 U 120 U ug/m3 NC 25 Analyte DU DU DUnitResultQualifier Sample Result Sample Qualifier LimitRPD RPD Benzene 6.4 U 6.4 U ug/m3 NC 25 Benzyl chloride 10 U 10 U ug/m3 NC 25 Bromodichloromethane 13 U 13 U ug/m3 NC 25 Bromoform 21 U 21 U ug/m3 NC 25 Bromomethane 7.8 U 7.8 U ug/m3 NC 25 1,3-Butadiene 11 11.1 ug/m3 4 25 2-Butanone 15 U 15 U ug/m3 NC 25 Eurofins Burlington Page 16 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 QC Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: SV-1Lab Sample ID: 200-77528-1 DU Matrix: Air Prep Type: Total/NA Analysis Batch: 214760 Carbon disulfide 16 U 16 U ug/m3 NC 25 Analyte DU DU DUnitResultQualifier Sample Result Sample Qualifier LimitRPD RPD Carbon tetrachloride 13 U 13 U ug/m3 NC 25 Chlorobenzene 9.2 U 9.2 U ug/m3 NC 25 Chloroethane 13 U 13 U ug/m3 NC 25 Chloroform 9.8 U 9.8 U ug/m3 NC 25 Chloromethane 10 U 10 U ug/m3 NC 25 Cyclohexane 6.9 U 6.9 U ug/m3 NC 25 Dibromochloromethane 17 U 17 U ug/m3 NC 25 1,2-Dibromoethane 15 U 15 U ug/m3 NC 25 1,2-Dichlorobenzene 12 U 12 U ug/m3 NC 25 1,3-Dichlorobenzene 12 U 12 U ug/m3 NC 25 1,4-Dichlorobenzene 12 U 12 U ug/m3 NC 25 Dichlorodifluoromethane 70 72.1 ug/m3 3 25 1,1-Dichloroethane 8.1 U 8.1 U ug/m3 NC 25 1,2-Dichloroethane 8.1 U 8.1 U ug/m3 NC 25 1,1-Dichloroethene 7.9 U 7.9 U ug/m3 NC 25 Dichloroethylene, 1,2-, cis-7.9 U 7.9 U ug/m3 NC 25 Dichloroethylene, 1,2-, trans-7.9 U 7.9 U ug/m3 NC 25 1,2-Dichloropropane 9.2 U 9.2 U ug/m3 NC 25 Dichloropropene, cis 1,3-9.1 U 9.1 U ug/m3 NC 25 Dichloropropene, 1,3-, trans-9.1 U *+9.1 U *+ug/m3 NC 25 1,2-Dichlorotetrafluoroethane 14 U 14 U ug/m3 NC 25 Ethanol 94 U 94 U ug/m3 NC 25 Ethyl acetate 180 U 180 U ug/m3 NC 25 Ethylbenzene 8.7 U 8.7 U ug/m3 NC 25 4-Ethyltoluene 9.8 U 9.8 U ug/m3 NC 25 Heptane, n-8.2 U 8.2 U ug/m3 NC 25 Hexachlorobutadiene 21 U 21 U ug/m3 NC 25 Hexane, n-18 U 18 U ug/m3 NC 25 2-Hexanone 20 U 20 U ug/m3 NC 25 Methylene Chloride 17 U 17 U ug/m3 NC 25 4-Methyl-2-pentanone (MIBK)20 U 20 U ug/m3 NC 25 Methyl tert-butyl ether 7.2 U 7.2 U ug/m3 NC 25 Naphthalene 26 U 26 U ug/m3 NC 25 2-Propanol 120 U 120 U ug/m3 NC 25 Propylene 86 U 86 U ug/m3 NC 25 Styrene 8.5 U 8.5 U ug/m3 NC 25 1,1,2,2-Tetrachloroethane 14 U 14 U ug/m3 NC 25 Tetrachloroethene 14 U 14 U ug/m3 NC 25 Tetrahydrofuran 150 U 150 U ug/m3 NC 25 Toluene 7.5 U 7.5 U ug/m3 NC 25 1,2,4-Trichlorobenzene 37 U 37 U ug/m3 NC 25 1,1,1-Trichloroethane 11 U 11 U ug/m3 NC 25 1,1,2-Trichloroethane 11 U 11 U ug/m3 NC 25 Trichloroethene 11 U 11 U ug/m3 NC 25 Trichlorofluoromethane 11 U 11 U ug/m3 NC 25 1,1,2-Trichlorotrifluoroethane 15 U 15 U ug/m3 NC 25 1,2,4-Trimethylbenzene 9.8 U 9.8 U ug/m3 NC 25 1,3,5-Trimethylbenzene 9.8 U 9.8 U ug/m3 NC 25 Eurofins Burlington Page 17 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 QC Sample Results Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: SV-1Lab Sample ID: 200-77528-1 DU Matrix: Air Prep Type: Total/NA Analysis Batch: 214760 Vinyl acetate 180 U 180 U ug/m3 NC 25 Analyte DU DU DUnitResultQualifier Sample Result Sample Qualifier LimitRPD RPD Vinyl chloride 5.1 U 5.1 U ug/m3 NC 25 Xylene, m&p 22 U 22 U ug/m3 NC 25 Xylene, o-8.7 U 8.7 U ug/m3 NC 25 Eurofins Burlington Page 18 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 QC Association Summary Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Air - GC/MS VOA Analysis Batch: 214760 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air TO-15200-77528-1 SV-1 Total/NA Air TO-15200-77528-2 SV-2 Total/NA Air TO-15200-77528-3 SV-3 Total/NA Air TO-15200-77528-4 SV-4 Total/NA Air TO-15MB 200-214760/4 Method Blank Total/NA Air TO-15LCS 200-214760/3 Lab Control Sample Total/NA Air TO-15200-77528-1 DU SV-1 Total/NA Eurofins Burlington Page 19 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Lab Chronicle Client: WSB & Associates, Inc Job ID: 200-77528-1 Project/Site: Monticello Phase II ESA Client Sample ID: SV-1 Lab Sample ID: 200-77528-1 Matrix: AirDate Collected: 03/27/25 10:13 Date Received: 03/29/25 09:50 Analysis TO-15 A1B10214760 EET BUR Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/02/25 20:57 Client Sample ID: SV-2 Lab Sample ID: 200-77528-2 Matrix: AirDate Collected: 03/27/25 10:27 Date Received: 03/29/25 09:50 Analysis TO-15 A1B10214760 EET BUR Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/02/25 22:39 Client Sample ID: SV-3 Lab Sample ID: 200-77528-3 Matrix: AirDate Collected: 03/27/25 10:46 Date Received: 03/29/25 09:50 Analysis TO-15 A1B10214760 EET BUR Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/03/25 01:13 Client Sample ID: SV-4 Lab Sample ID: 200-77528-4 Matrix: AirDate Collected: 03/27/25 11:05 Date Received: 03/29/25 09:50 Analysis TO-15 A1B10214760 EET BUR Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/03/25 02:04 Laboratory References: EET BUR = Eurofins Burlington, 530 Community Drive, Suite 11, South Burlington, VT 05403, TEL (802)660-1990 Eurofins Burlington Page 20 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Accreditation/Certification Summary Client: WSB & Associates, Inc Job ID: 200-77528-1 Project/Site: Monticello Phase II ESA Laboratory: Eurofins Burlington Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date Minnesota NELAP 050-999-436 04-03-25 The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification. Analysis Method Prep Method Matrix Analyte TO-15 Air Vinyl acetate New Jersey NELAP VT972 06-30-25 The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification. Analysis Method Prep Method Matrix Analyte TO-15 Air Vinyl acetate Eurofins Burlington Page 21 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Method Summary Job ID: 200-77528-1Client: WSB & Associates, Inc Project/Site: Monticello Phase II ESA Method Method Description LaboratoryProtocol EPATO-15 Volatile Organic Compounds in Ambient Air EET BUR Protocol References: EPA = US Environmental Protection Agency Laboratory References: EET BUR = Eurofins Burlington, 530 Community Drive, Suite 11, South Burlington, VT 05403, TEL (802)660-1990 Eurofins Burlington Page 22 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Sample Summary Client: WSB & Associates, Inc Job ID: 200-77528-1 Project/Site: Monticello Phase II ESA Lab Sample ID Client Sample ID Matrix Collected Received Asset ID 200-77528-1 SV-1 Air 03/27/25 10:13 03/29/25 09:50 Air Canister (1-Liter) #6376 200-77528-2 SV-2 Air 03/27/25 10:27 03/29/25 09:50 Air Canister (1-Liter) #34000327 200-77528-3 SV-3 Air 03/27/25 10:46 03/29/25 09:50 Air Canister (1-Liter) #6927 200-77528-4 SV-4 Air 03/27/25 11:05 03/29/25 09:50 Air Canister (1-Liter) #5839 Eurofins Burlington Page 23 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Yes N o Yes Yes N o N o N Y N Y N Y N Y 2 If return pressure is not within criteria, initiate Non-conformance Memo 3 Subtact the retrun pressure from the final field pressure reading recorded on the FTDS. 4 The difference should be less than ± 2.3 ("Hg), if it is not, initiate Non-conformance Memo. 5 Record the ID of the FC used for sampling if information is provided, otherwise leave blank. FSR021v3 Feb. 11, 2025 Page 1 of 1 1 Criteria: Return Pressure should be between -1 and -12 ("Hg) with the exception of grab samples. Grab samples, or if using 100 or 200mL/minute flow controllers, must be returned at no lower than -12"Hg, but have no other specific criteria. Eurofins-Burlington 106/58 5839-63682 6927-63682 200-77528-A-2 34000327 200-77528-A-4 5839 -4.0 6539 Pr e s s u r e Hg " 1 Fa i l ( Y / N ) 2 Sampling FC ID3 FC Check Reference 200-77528-A-3 6927 -2.2 6346 106/82 6376-64294 Laboratory Canister ID -4.5 5955 106/82 6844-64079 Re t u r n ( Y / N ) Can Cert (4) Is visible sign of damage to canister and/or flow controller (FC) present? If damage observed, list equipment IDs and describe condition: Comments 200-77528-A-1 6376 -1.7 6502 106/76 (2) Is the flow controller ID used for each canister recorded? 200-77528 ZK 3/29/2025 (3) MA MCP & NJ DKQP: Check return flow rate for flow controllers G40 Sampling Information and Return Equipment Check Comments (1) Is a Field Test Data Sheet (FTDS) or similar sampling documentation present? Pressure Gauge ID 15:59 29.6 21 Post-Sampling Air Canister Pressure Check Record Login # (w/ Location Code)Analyst Date Time (Military) Lab BP ("Hg) Lab Temp (°C) Page 24 of 141 4/9/2025 Page 25 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Page 26 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Login Sample Receipt Checklist Client: WSB & Associates, Inc Job Number: 200-77528-1 Login Number: 77528 Question Answer Comment Creator: Khudaier, Zahraa List Source: Eurofins Burlington List Number: 1 N/ARadioactivity wasn't checked or is </= background as measured by a survey meter. Lab does not accept radioactive samples. TrueThe cooler's custody seal, if present, is intact.Seal present with no number. TrueSample custody seals, if present, are intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. N/ASamples were received on ice.Thermal preservation not required. TrueCooler Temperature is acceptable. N/ACooler Temperature is recorded.Thermal preservation not required. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueIs the Field Sampler's name present on COC? TrueThere are no discrepancies between the containers received and the COC. TrueSamples are received within Holding Time (excluding tests with immediate HTs) TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. N/ASample bottles are completely filled. TrueSample Preservation Verified. TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs N/AContainers requiring zero headspace have no headspace or bubble is <6mm (1/4"). TrueMultiphasic samples are not present. TrueSamples do not require splitting or compositing. N/AResidual Chlorine Checked. Eurofins Burlington Page 27 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6847 Lab Sample ID:200-76556-1 Matrix:63682_007.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 12:10 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 28 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6847 Lab Sample ID:200-76556-1 Matrix:63682_007.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 12:10 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 29 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6847 Lab Sample ID:200-76556-1 Matrix:63682_007.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 12:10 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 30 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:06:19 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_007.D Lims ID:200-76556-A-1 Client ID:6847 Sample Type:Client Inject. Date:15-Jan-2025 12:10:15 ALS Bottle#:6 Worklist Smp#:7 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-007 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:06:18 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:06:18 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 230996 10.0 40 Tetrahydrofuran 42 11.709 ND Page 31 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:06:19 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_007.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 1104257 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND MU 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 978511 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND MU 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 32 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:06:19 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 33 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:06:19 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_007.D Injection Date:15-Jan-2025 12:10:15 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-1 Lab Sample ID:200-76556-1 Worklist Smp#:7 Client ID:6847 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:6 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Y ( X10 0 0 0 0 ) 63682_007[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 34 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:06:19 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_007.D Injection Date:15-Jan-2025 12:10:15 Instrument ID:CHAM.i Lims ID:200-76556-A-1 Lab Sample ID:200-76556-1 Client ID:6847 Operator ID:vtp ALS Bottle#:6 Worklist Smp#:7 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 75 Ethylbenzene, CAS: 100-41-4 Processing Results 30 40 50 60 70 80 90 100 110 120 130 m/z 0 5 10 15 20 25 30 35 40 Y ( X10 0 0 0 ) Raw Spec:Scan 2776(19.04) 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 m/z 0 13 26 39 52 65 78 91 Y ( X10 ) Amdis Enhanced Spec: Scan 2775(19.04), Qvalue=45 116 81 117 11953 30 40 50 60 70 80 90 100 110 120 130 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 75 Ethylbenzene (NIST20.L) 91 106 51 65 77 78 9239 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_007[MS Quad Chro]:m/z 91 1 9 . 0 3 8 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_007[MS Quad Chro]:m/z 106 RT Mass Response Amount 19.04 91.00 2296 0.014503 19.28 106.00 0 Reviewer: F7XK, 16-Jan-2025 09:05:21 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 35 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6773 Lab Sample ID:200-76556-2 Matrix:63682_008.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 13:01 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 36 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6773 Lab Sample ID:200-76556-2 Matrix:63682_008.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 13:01 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 37 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6773 Lab Sample ID:200-76556-2 Matrix:63682_008.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 13:01 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 38 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:09:26 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_008.D Lims ID:200-76556-A-2 Client ID:6773 Sample Type:Client Inject. Date:15-Jan-2025 13:01:21 ALS Bottle#:7 Worklist Smp#:8 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-008 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:09:26 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:09:26 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.970 8.970 0.011 81 656 0.0154 7M 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 224302 10.0 40 Tetrahydrofuran 42 11.709 ND Page 39 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:09:26 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_008.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 1069105 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 7 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 954176 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND MU 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 40 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:09:26 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 41 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:09:26 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_008.D Injection Date:15-Jan-2025 13:01:21 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-2 Lab Sample ID:200-76556-2 Worklist Smp#:8 Client ID:6773 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:7 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Y ( X10 0 0 0 0 ) 63682_008[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 2 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 42 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:09:26 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Manual Integration/User Assign Peak Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_008.D Injection Date:15-Jan-2025 13:01:21 Instrument ID:CHAM.i Lims ID:200-76556-A-2 Lab Sample ID:200-76556-2 Client ID:6773 Operator ID:vtp ALS Bottle#:7 Worklist Smp#:8 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 27 Methylene Chloride, CAS: 75-09-2 Signal: 1 Processing Integration Results RT: 8.96 Area: 402 Amount: 0.009456 Amount Units: ppb v/v 8.6 8.8 9.0 9.2 Min 0 3 6 9 12 15 18 21 24 27 30 Y ( X10 ) 63682_008[MS Quad Chro]:m/z 49 8 . 9 5 9 Manual Integration Results RT: 8.97 Area: 656 Amount: 0.015430 Amount Units: ppb v/v 8.6 8.8 9.0 9.2 Min RT 0 3 6 9 12 15 18 21 24 27 30 Y ( X10 ) 63682_008[MS Quad Chro]:m/z 49 8 . 9 7 0 Reviewer: F7XK, 16-Jan-2025 09:07:32 07:00:00 (UTC) Audit Action: Manually Integrated Audit Reason: Assign Peak Page 43 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:09:26 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_008.D Injection Date:15-Jan-2025 13:01:21 Instrument ID:CHAM.i Lims ID:200-76556-A-2 Lab Sample ID:200-76556-2 Client ID:6773 Operator ID:vtp ALS Bottle#:7 Worklist Smp#:8 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 75 Ethylbenzene, CAS: 100-41-4 Processing Results 30 40 50 60 70 80 90 100 110 120 130 m/z 0 5 10 15 20 25 30 35 Y ( X10 0 0 0 ) Raw Spec:Scan 2776(19.04) 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 m/z 0 13 26 39 52 65 78 91 Y ( X10 ) Amdis Enhanced Spec: Scan 2775(19.04), Qvalue=44 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 75 Ethylbenzene (NIST20.L) 91 106 51 65 77 78 9239 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_008[MS Quad Chro]:m/z 91 1 9 . 0 3 8 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_008[MS Quad Chro]:m/z 106 RT Mass Response Amount 19.04 91.00 2201 0.014257 19.28 106.00 0 Reviewer: F7XK, 16-Jan-2025 09:08:45 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 44 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6830 Lab Sample ID:200-76556-3 Matrix:63682_009.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 13:52 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 45 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6830 Lab Sample ID:200-76556-3 Matrix:63682_009.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 13:52 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 46 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6830 Lab Sample ID:200-76556-3 Matrix:63682_009.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 13:52 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 47 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:14:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_009.D Lims ID:200-76556-A-3 Client ID:6830 Sample Type:Client Inject. Date:15-Jan-2025 13:52:23 ALS Bottle#:8 Worklist Smp#:9 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-009 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:14:49 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:14:49 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND MU 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 222352 10.0 40 Tetrahydrofuran 42 11.709 ND Page 48 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:14:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_009.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 1064995 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 7 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 948473 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND MU 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 49 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:14:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 50 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:14:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_009.D Injection Date:15-Jan-2025 13:52:23 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-3 Lab Sample ID:200-76556-3 Worklist Smp#:9 Client ID:6830 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:8 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Y ( X10 0 0 0 0 ) 63682_009[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 2 8 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 51 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:14:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_009.D Injection Date:15-Jan-2025 13:52:23 Instrument ID:CHAM.i Lims ID:200-76556-A-3 Lab Sample ID:200-76556-3 Client ID:6830 Operator ID:vtp ALS Bottle#:8 Worklist Smp#:9 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 22 Acetone, CAS: 67-64-1 Processing Results 30 32 34 36 38 40 42 44 46 48 50 m/z 0 2 4 6 8 10 12 14 Y ( X10 0 ) Raw Spec:Scan 743(8.16) 40 44 43 30 32 34 36 38 40 42 44 46 48 50 m/z 0 2 4 6 8 10 12 14 Y ( X10 0 ) Enhanced Spec:Scan 743(8.16), Qvalue=1 Sig Qvalue=91 40 44 43 30 32 34 36 38 40 42 44 46 48 50 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 22 Acetone (NIST20.L) 43 8.0 Min RT 0 5 10 15 20 25 30 Y ( X10 ) 63682_009[MS Quad Chro]:m/z 43 8 . 1 6 2 8.0 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_009[MS Quad Chro]:m/z 58 RT Mass Response Amount 8.16 43.00 445 0.008695 8.10 58.00 0 Reviewer: F7XK, 16-Jan-2025 09:12:56 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 52 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:14:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_009.D Injection Date:15-Jan-2025 13:52:23 Instrument ID:CHAM.i Lims ID:200-76556-A-3 Lab Sample ID:200-76556-3 Client ID:6830 Operator ID:vtp ALS Bottle#:8 Worklist Smp#:9 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 75 Ethylbenzene, CAS: 100-41-4 Processing Results 30 40 50 60 70 80 90 100 110 120 130 m/z 0 5 10 15 20 25 30 35 Y ( X10 0 0 0 ) Raw Spec:Scan 2776(19.04) 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 m/z 0 13 26 39 52 65 78 91 Y ( X10 ) Amdis Enhanced Spec: Scan 2775(19.04), Qvalue=45 116 81 117 53 78 30 40 50 60 70 80 90 100 110 120 130 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 75 Ethylbenzene (NIST20.L) 91 106 51 65 77 78 9239 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_009[MS Quad Chro]:m/z 91 1 9 . 0 3 8 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_009[MS Quad Chro]:m/z 106 RT Mass Response Amount 19.04 91.00 1953 0.012727 19.28 106.00 0 Reviewer: F7XK, 16-Jan-2025 09:14:00 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 53 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:34001948 Lab Sample ID:200-76556-4 Matrix:63682_010.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 14:43 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 54 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:34001948 Lab Sample ID:200-76556-4 Matrix:63682_010.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 14:43 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 55 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:34001948 Lab Sample ID:200-76556-4 Matrix:63682_010.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 14:43 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 56 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:18:38 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_010.D Lims ID:200-76556-A-4 Client ID:34001948 Sample Type:Client Inject. Date:15-Jan-2025 14:43:25 ALS Bottle#:9 Worklist Smp#:10 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-010 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:18:38 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:18:38 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.964 8.964 0.005 81 661 0.0156 7M 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 222917 10.0 40 Tetrahydrofuran 42 11.709 ND Page 57 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:18:38 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_010.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 1066164 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.598 14.598 0.005 78 240 0.006461 7M 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 934264 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 58 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:18:38 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 59 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:18:38 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_010.D Injection Date:15-Jan-2025 14:43:25 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-4 Lab Sample ID:200-76556-4 Worklist Smp#:10 Client ID:34001948 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:9 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Y ( X10 0 0 0 0 ) 63682_010[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 60 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:18:38 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Manual Integration/User Assign Peak Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_010.D Injection Date:15-Jan-2025 14:43:25 Instrument ID:CHAM.i Lims ID:200-76556-A-4 Lab Sample ID:200-76556-4 Client ID:34001948 Operator ID:vtp ALS Bottle#:9 Worklist Smp#:10 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 27 Methylene Chloride, CAS: 75-09-2 Signal: 1 Processing Integration Results RT: 8.96 Area: 534 Amount: 0.012639 Amount Units: ppb v/v 8.6 8.8 9.0 9.2 Min 0 3 6 9 12 15 18 21 24 27 30 33 Y ( X10 ) 63682_010[MS Quad Chro]:m/z 49 8 . 9 6 4 Manual Integration Results RT: 8.96 Area: 661 Amount: 0.015645 Amount Units: ppb v/v 8.6 8.8 9.0 9.2 Min RT 0 3 6 9 12 15 18 21 24 27 30 33 Y ( X10 ) 63682_010[MS Quad Chro]:m/z 49 8 . 9 6 4 Reviewer: F7XK, 16-Jan-2025 09:16:21 07:00:00 (UTC) Audit Action: Manually Integrated Audit Reason: Assign Peak Page 61 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:34001940 Lab Sample ID:200-76556-5 Matrix:63682_011.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 15:34 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 62 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:34001940 Lab Sample ID:200-76556-5 Matrix:63682_011.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 15:34 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 63 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:34001940 Lab Sample ID:200-76556-5 Matrix:63682_011.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 15:34 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 64 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:22:00 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_011.D Lims ID:200-76556-A-5 Client ID:34001940 Sample Type:Client Inject. Date:15-Jan-2025 15:34:25 ALS Bottle#:10 Worklist Smp#:11 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-011 Misc. Info.: 5 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:22:00 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:22:00 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 4.374 0.000 97 3409 0.0505 3 Chlorodifluoromethane 51 4.422 4.423 -0.001 96 2936 0.0751 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 4.872 0.000 93 1508 0.0652 7 Butane 43 5.171 5.171 -0.006 95 2467 0.0463 7M 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 7 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 7 16 Ethanol 45 7.328 ND 7 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 7 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 7 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND 7 S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 215367 10.0 Page 65 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:22:00 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_011.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 40 Tetrahydrofuran 42 11.709 ND 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 7 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 1017949 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 906039 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND MU 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 66 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:22:00 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 67 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:22:00 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_011.D Injection Date:15-Jan-2025 15:34:25 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-5 Lab Sample ID:200-76556-5 Worklist Smp#:11 Client ID:34001940 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:10 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Y ( X10 0 0 0 0 ) 63682_011[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 68 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:22:00 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Manual Integration/User Assign Peak Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_011.D Injection Date:15-Jan-2025 15:34:25 Instrument ID:CHAM.i Lims ID:200-76556-A-5 Lab Sample ID:200-76556-5 Client ID:34001940 Operator ID:vtp ALS Bottle#:10 Worklist Smp#:11 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 7 Butane, CAS: 106-97-8 Signal: 1 Processing Integration Results RT: 5.17 Area: 5419 Amount: 0.101776 Amount Units: ppb v/v 4.8 5.0 5.2 5.4 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Y ( X10 0 ) 63682_011[MS Quad Chro]:m/z 43 5 . 1 7 1 Manual Integration Results RT: 5.17 Area: 2467 Amount: 0.046334 Amount Units: ppb v/v 4.8 5.0 5.2 5.4 Min RT 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Y ( X10 0 ) 63682_011[MS Quad Chro]:m/z 43 5 . 1 7 1 Reviewer: F7XK, 16-Jan-2025 09:19:41 07:00:00 (UTC) Audit Action: Manually Integrated Audit Reason: Assign Peak Page 69 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:22:00 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_011.D Injection Date:15-Jan-2025 15:34:25 Instrument ID:CHAM.i Lims ID:200-76556-A-5 Lab Sample ID:200-76556-5 Client ID:34001940 Operator ID:vtp ALS Bottle#:10 Worklist Smp#:11 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 75 Ethylbenzene, CAS: 100-41-4 Processing Results 30 40 50 60 70 80 90 100 110 120 130 m/z 0 5 10 15 20 25 30 35 Y ( X10 0 0 0 ) Raw Spec:Scan 2776(19.04) 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 m/z 0 13 26 39 52 65 78 91 Y ( X10 ) Amdis Enhanced Spec: Scan 2775(19.04), Qvalue=45 116 81 119 53 30 40 50 60 70 80 90 100 110 120 130 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 75 Ethylbenzene (NIST20.L) 91 106 51 65 77 78 9239 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_011[MS Quad Chro]:m/z 91 1 9 . 0 3 8 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_011[MS Quad Chro]:m/z 106 RT Mass Response Amount 19.04 91.00 1996 0.013616 19.28 106.00 0 Reviewer: F7XK, 16-Jan-2025 09:21:19 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 70 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:3691 Lab Sample ID:200-76556-6 Matrix:63682_012.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 16:25 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 71 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:3691 Lab Sample ID:200-76556-6 Matrix:63682_012.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 16:25 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 72 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:3691 Lab Sample ID:200-76556-6 Matrix:63682_012.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 16:25 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 73 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:24:35 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_012.D Lims ID:200-76556-A-6 Client ID:3691 Sample Type:Client Inject. Date:15-Jan-2025 16:25:23 ALS Bottle#:11 Worklist Smp#:12 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-012 Misc. Info.: 6 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:22:00 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:24:35 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 213007 10.0 Page 74 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:24:35 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_012.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 40 Tetrahydrofuran 42 11.709 ND 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 996655 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 7 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 891839 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 75 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:24:35 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 76 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:24:35 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_012.D Injection Date:15-Jan-2025 16:25:23 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-6 Lab Sample ID:200-76556-6 Worklist Smp#:12 Client ID:3691 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:11 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Y ( X10 0 0 0 0 ) 63682_012[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 77 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6826 Lab Sample ID:200-76556-7 Matrix:63682_013.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 17:16 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 78 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6826 Lab Sample ID:200-76556-7 Matrix:63682_013.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 17:16 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 79 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6826 Lab Sample ID:200-76556-7 Matrix:63682_013.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 17:16 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 80 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:28:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_013.D Lims ID:200-76556-A-7 Client ID:6826 Sample Type:Client Inject. Date:15-Jan-2025 17:16:23 ALS Bottle#:12 Worklist Smp#:13 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-013 Misc. Info.: 7 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:28:49 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:28:49 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.959 8.959 0.000 63 576 0.0143 7M 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 212223 10.0 Page 81 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:28:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_013.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 40 Tetrahydrofuran 42 11.709 ND 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 1008047 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 7 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 899653 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND MU 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 82 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:28:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 83 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:28:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_013.D Injection Date:15-Jan-2025 17:16:23 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-7 Lab Sample ID:200-76556-7 Worklist Smp#:13 Client ID:6826 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:12 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Y ( X10 0 0 0 0 ) 63682_013[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 84 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:28:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Manual Integration/User Assign Peak Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_013.D Injection Date:15-Jan-2025 17:16:23 Instrument ID:CHAM.i Lims ID:200-76556-A-7 Lab Sample ID:200-76556-7 Client ID:6826 Operator ID:vtp ALS Bottle#:12 Worklist Smp#:13 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 27 Methylene Chloride, CAS: 75-09-2 Signal: 1 Processing Integration Results RT: 8.96 Area: 414 Amount: 0.010292 Amount Units: ppb v/v 8.6 8.8 9.0 9.2 Min 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Y ( X10 ) 63682_013[MS Quad Chro]:m/z 49 8 . 9 5 9 Manual Integration Results RT: 8.96 Area: 576 Amount: 0.014320 Amount Units: ppb v/v 8.6 8.8 9.0 9.2 Min RT 0 3 6 9 12 15 18 21 24 27 30 Y ( X10 ) 63682_013[MS Quad Chro]:m/z 49 8 . 9 5 9 Reviewer: F7XK, 16-Jan-2025 09:26:37 07:00:00 (UTC) Audit Action: Manually Integrated Audit Reason: Assign Peak Page 85 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:28:49 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_013.D Injection Date:15-Jan-2025 17:16:23 Instrument ID:CHAM.i Lims ID:200-76556-A-7 Lab Sample ID:200-76556-7 Client ID:6826 Operator ID:vtp ALS Bottle#:12 Worklist Smp#:13 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 75 Ethylbenzene, CAS: 100-41-4 Processing Results 30 40 50 60 70 80 90 100 110 120 130 m/z 0 5 10 15 20 25 30 35 Y ( X10 0 0 0 ) Raw Spec:Scan 2776(19.04) 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 m/z 0 13 26 39 52 65 78 91 Y ( X10 ) Amdis Enhanced Spec: Scan 2775(19.04), Qvalue=45 116 81 117 53 30 40 50 60 70 80 90 100 110 120 130 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 75 Ethylbenzene (NIST20.L) 91 106 51 65 77 78 9239 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_013[MS Quad Chro]:m/z 91 1 9 . 0 3 8 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_013[MS Quad Chro]:m/z 106 RT Mass Response Amount 19.04 91.00 1990 0.013672 19.28 106.00 0 Reviewer: F7XK, 16-Jan-2025 09:27:56 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 86 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6927 Lab Sample ID:200-76556-8 Matrix:63682_014.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 18:07 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 87 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6927 Lab Sample ID:200-76556-8 Matrix:63682_014.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 18:07 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 88 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6927 Lab Sample ID:200-76556-8 Matrix:63682_014.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 18:07 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 89 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:31:33 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_014.D Lims ID:200-76556-A-8 Client ID:6927 Sample Type:Client Inject. Date:15-Jan-2025 18:07:30 ALS Bottle#:13 Worklist Smp#:14 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-014 Misc. Info.: 8 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:31:33 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:31:33 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 216031 10.0 Page 90 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:31:33 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_014.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 40 Tetrahydrofuran 42 11.709 ND 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 1023852 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 7 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.033 19.033 0.000 91 903279 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND MU 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 91 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:31:33 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 92 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:31:33 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_014.D Injection Date:15-Jan-2025 18:07:30 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-8 Lab Sample ID:200-76556-8 Worklist Smp#:14 Client ID:6927 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:13 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Y ( X10 0 0 0 0 ) 63682_014[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 3 ) Page 93 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:31:33 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_014.D Injection Date:15-Jan-2025 18:07:30 Instrument ID:CHAM.i Lims ID:200-76556-A-8 Lab Sample ID:200-76556-8 Client ID:6927 Operator ID:vtp ALS Bottle#:13 Worklist Smp#:14 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 75 Ethylbenzene, CAS: 100-41-4 Processing Results 30 40 50 60 70 80 90 100 110 120 130 m/z 0 5 10 15 20 25 30 35 Y ( X10 0 0 0 ) Raw Spec:Scan 2776(19.04) 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 m/z 0 8 16 24 32 40 48 56 Y ( X10 0 ) Amdis Enhanced Spec: Scan 2775(19.04), Qvalue=47 117 116 81 53 11877 873959 115 30 40 50 60 70 80 90 100 110 120 130 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 75 Ethylbenzene (NIST20.L) 91 106 51 65 77 78 9239 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_014[MS Quad Chro]:m/z 91 1 9 . 0 3 8 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_014[MS Quad Chro]:m/z 106 RT Mass Response Amount 19.04 91.00 1983 0.013569 19.28 106.00 0 Reviewer: F7XK, 16-Jan-2025 09:30:46 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 94 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6808 Lab Sample ID:200-76556-9 Matrix:63682_015.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 18:58 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 95 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6808 Lab Sample ID:200-76556-9 Matrix:63682_015.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 18:58 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 96 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6808 Lab Sample ID:200-76556-9 Matrix:63682_015.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 18:58 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 97 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:35:58 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_015.D Lims ID:200-76556-A-9 Client ID:6808 Sample Type:Client Inject. Date:15-Jan-2025 18:58:42 ALS Bottle#:14 Worklist Smp#:15 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-015 Misc. Info.: 9 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:31:33 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:35:58 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.672 11.677 -0.005 96 210203 10.0 Page 98 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:35:58 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_015.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 40 Tetrahydrofuran 42 11.709 ND 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 1004569 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 7 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 893144 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 99 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:35:58 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 100 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:35:58 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_015.D Injection Date:15-Jan-2025 18:58:42 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-9 Lab Sample ID:200-76556-9 Worklist Smp#:15 Client ID:6808 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:14 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Y ( X10 0 0 0 0 ) 63682_015[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 2 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 101 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6762 Lab Sample ID:200-76556-10 Matrix:63682_016.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 19:50 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 102 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6762 Lab Sample ID:200-76556-10 Matrix:63682_016.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 19:50 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 103 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:6762 Lab Sample ID:200-76556-10 Matrix:63682_016.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 19:50 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 104 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:39:53 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_016.D Lims ID:200-76556-A-10 Client ID:6762 Sample Type:Client Inject. Date:15-Jan-2025 19:50:07 ALS Bottle#:15 Worklist Smp#:16 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-016 Misc. Info.: 10 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:39:52 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:39:52 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 7 3 Chlorodifluoromethane 51 4.423 ND 7 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 7 Butane 43 5.177 ND MU 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 7 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 7 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.125 8.162 0.027 98 69686 1.47 23 Isopropyl alcohol 45 8.403 ND 7 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 7 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 95 206099 10.0 Page 105 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:39:53 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_016.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 40 Tetrahydrofuran 42 11.709 ND 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 7 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 977032 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 861727 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 106 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:39:53 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 107 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:39:53 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_016.D Injection Date:15-Jan-2025 19:50:07 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-10 Lab Sample ID:200-76556-10 Worklist Smp#:16 Client ID:6762 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:15 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Y ( X10 0 0 0 0 ) 63682_016[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 108 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:39:53 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_016.D Injection Date:15-Jan-2025 19:50:07 Instrument ID:CHAM.i Lims ID:200-76556-A-10 Lab Sample ID:200-76556-10 Client ID:6762 Operator ID:vtp ALS Bottle#:15 Worklist Smp#:16 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 7 Butane, CAS: 106-97-8 Processing Results 30 50 70 90 110 130 150 170 190 210 m/z 0 6 12 18 24 30 36 42 Y ( X10 0 ) Raw Spec:Scan 187(5.19) 44 43 78 82 30 50 70 90 110 130 150 170 190 210 m/z 0 13 26 39 52 65 78 91 Y ( X10 ) Amdis Enhanced Spec: Scan 187(5.19), Qvalue=93 43 41 53 67 30 50 70 90 110 130 150 170 190 210 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 7 Butane (NIST20.L) 43 41 58 5.0 5.3 Min RT 0 15 30 45 60 75 90 Y ( X10 ) 63682_016[MS Quad Chro]:m/z 43 5 . 1 8 8 5.0 5.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_016[MS Quad Chro]:m/z 41 5 . 1 9 3 5.0 5.3 Min RT 0 3 6 9 12 15 Y ( X10 ) 63682_016[MS Quad Chro]:m/z 58 RT Mass Response Amount 5.19 43.00 1589 0.031186 5.19 41.00 1590 5.18 58.00 0 Reviewer: F7XK, 16-Jan-2025 09:37:20 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 109 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:5839 Lab Sample ID:200-76556-11 Matrix:63682_017.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 20:41 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 110 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:5839 Lab Sample ID:200-76556-11 Matrix:63682_017.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 20:41 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 111 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:5839 Lab Sample ID:200-76556-11 Matrix:63682_017.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 20:41 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 112 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:43:20 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_017.D Lims ID:200-76556-A-11 Client ID:5839 Sample Type:Client Inject. Date:15-Jan-2025 20:41:19 ALS Bottle#:16 Worklist Smp#:17 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-017 Misc. Info.: 11 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 09:43:20 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 09:43:20 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.959 ND MU 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 96 209920 10.0 Page 113 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:43:20 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_017.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 40 Tetrahydrofuran 42 11.709 ND 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 993872 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 7 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 877527 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND MU 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 114 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:43:20 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 115 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:43:20 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_017.D Injection Date:15-Jan-2025 20:41:19 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-11 Lab Sample ID:200-76556-11 Worklist Smp#:17 Client ID:5839 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:16 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Y ( X10 0 0 0 0 ) 63682_017[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 2 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 8 ) Page 116 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:43:20 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_017.D Injection Date:15-Jan-2025 20:41:19 Instrument ID:CHAM.i Lims ID:200-76556-A-11 Lab Sample ID:200-76556-11 Client ID:5839 Operator ID:vtp ALS Bottle#:16 Worklist Smp#:17 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 27 Methylene Chloride, CAS: 75-09-2 Processing Results 30 32 34 36 38 40 42 44 46 48 50 m/z 0 2 4 6 8 10 12 Y ( X10 0 ) Raw Spec:Scan 893(8.96) 40 44 49 30 32 34 36 38 40 42 44 46 48 50 m/z 0 13 26 39 52 65 78 91 Y ( X10 ) Amdis Enhanced Spec: Scan 892(8.96), Qvalue=37 30 32 34 36 38 40 42 44 46 48 50 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 27 Methylene Chloride (NIST20.L) 49 8.8 9.1 Min RT 0 6 12 18 24 30 36 Y ( X10 ) 63682_017[MS Quad Chro]:m/z 49 8 . 9 6 5 8.8 9.1 Min RT 0 4 8 12 16 20 Y ( X10 ) 63682_017[MS Quad Chro]:m/z 84 8 . 9 5 9 8.8 9.1 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_017[MS Quad Chro]:m/z 86 RT Mass Response Amount 8.96 49.00 482 0.012114 8.96 84.00 119 8.96 86.00 0 Reviewer: F7XK, 16-Jan-2025 09:41:28 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 117 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 09:43:20 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_017.D Injection Date:15-Jan-2025 20:41:19 Instrument ID:CHAM.i Lims ID:200-76556-A-11 Lab Sample ID:200-76556-11 Client ID:5839 Operator ID:vtp ALS Bottle#:16 Worklist Smp#:17 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 75 Ethylbenzene, CAS: 100-41-4 Processing Results 30 40 50 60 70 80 90 100 110 120 130 m/z 0 5 10 15 20 25 30 35 Y ( X10 0 0 0 ) Raw Spec:Scan 2776(19.04) 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 m/z 0 4 8 12 16 20 24 28 Y ( X10 0 ) Amdis Enhanced Spec: Scan 2775(19.04), Qvalue=46 117 116 119 81 53 62 30 40 50 60 70 80 90 100 110 120 130 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 75 Ethylbenzene (NIST20.L) 91 106 51 65 77 78 9239 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_017[MS Quad Chro]:m/z 91 1 9 . 0 3 8 19.0 19.3 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_017[MS Quad Chro]:m/z 106 RT Mass Response Amount 19.04 91.00 2067 0.014559 19.28 106.00 0 Reviewer: F7XK, 16-Jan-2025 09:42:28 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 118 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:3814 Lab Sample ID:200-76556-12 Matrix:63682_018.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 21:32 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 119 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:3814 Lab Sample ID:200-76556-12 Matrix:63682_018.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 21:32 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 120 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-76556-1Eurofins Burlington SDG No.: Client Sample ID:3814 Lab Sample ID:200-76556-12 Matrix:63682_018.DLab File ID: Date Collected:TO-15Analysis Method: Air 01/13/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:01/15/2025 21:32 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:212823 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 121 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 11:40:55 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_018.D Lims ID:200-76556-A-12 Client ID:3814 Sample Type:Client Inject. Date:15-Jan-2025 21:32:21 ALS Bottle#:16 Worklist Smp#:18 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0063682-018 Misc. Info.: 12 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:16-Jan-2025 11:40:54 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1604 First Level Reviewer: F7XK Date:16-Jan-2025 11:40:54 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 2 Dichlorodifluoromethane 85 4.374 ND 3 Chlorodifluoromethane 51 4.423 ND 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.749 ND 5 Chloromethane 50 4.872 ND 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.177 ND 8 Butadiene 54 5.295 ND 9 Bromomethane 94 6.044 ND 10 Chloroethane 64 6.322 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.921 ND 16 Ethanol 45 7.328 ND 20 1,1-Dichloroethene 96 8.007 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 24 Carbon disulfide 76 8.414 ND 26 3-Chloro-1-propene 41 8.719 ND 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.189 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.970 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.254 ND 36 2-Butanone (MEK) 72 11.238 ND 37 cis-1,2-Dichloroethene 96 11.260 ND 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.677 11.677 0.000 95 201976 10.0 Page 122 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 11:40:55 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_018.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 40 Tetrahydrofuran 42 11.709 ND 41 Chloroform 83 11.859 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.287 ND 44 Carbon tetrachloride 117 12.431 ND 45 Benzene 78 12.790 ND 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.993 ND 48 n-Heptane 43 13.303 ND 7 * 49 1,4-Difluorobenzene 114 13.533 13.533 0.000 97 958595 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.432 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.560 ND 57 Dibromomethane 174 14.593 ND 7 58 Dichlorobromomethane 83 14.908 ND 59 cis-1,3-Dichloropropene 75 15.711 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.770 ND 67 1,1,2-Trichloroethane 83 17.150 ND 68 Tetrachloroethene 166 17.332 ND 69 2-Hexanone 43 17.562 ND 70 Chlorodibromomethane 129 17.888 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.038 19.033 0.005 91 850497 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND MU 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.349 ND 81 Bromoform 173 20.691 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.504 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.874 ND 88 1,3,5-Trimethylbenzene 105 21.965 ND 91 tert-Butylbenzene 119 22.441 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 93 sec-Butylbenzene 105 22.762 ND 94 1,3-Dichlorobenzene 146 22.938 ND 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 97 Benzyl chloride 91 23.232 ND 98 n-Butylbenzene 91 23.537 ND 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.079 ND 103 Hexachlorobutadiene 225 26.325 ND 104 Naphthalene 128 26.576 ND Page 123 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 11:40:55 Chrom Revision: 2.3 17-Dec-2024 12:44:46 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags U - Marked Undetected Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 124 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 11:40:55 Chrom Revision: 2.3 17-Dec-2024 12:44:46 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_018.D Injection Date:15-Jan-2025 21:32:21 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-76556-A-12 Lab Sample ID:200-76556-12 Worklist Smp#:18 Client ID:3814 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:16 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Y ( X10 0 0 0 0 ) 63682_018[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 7 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 3 3 )+ * C h l o r o b e n zen e - d5( 1 9.0 3 8 ) Page 125 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 16-Jan-2025 11:40:55 Chrom Revision: 2.3 17-Dec-2024 12:44:46 User Disabled Compound Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250115-63682.b\63682_018.D Injection Date:15-Jan-2025 21:32:21 Instrument ID:CHAM.i Lims ID:200-76556-A-12 Lab Sample ID:200-76556-12 Client ID:3814 Operator ID:vtp ALS Bottle#:16 Worklist Smp#:18 Purge Vol:200.000 mL Dil. Factor:1.0000 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 75 Ethylbenzene, CAS: 100-41-4 Processing Results 30 40 50 60 70 80 90 100 110 120 130 m/z 0 5 10 15 20 25 30 35 Y ( X10 0 0 0 ) Raw Spec:Scan 2776(19.04) 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 m/z 0 13 26 39 52 65 78 91 Y ( X10 ) Amdis Enhanced Spec: Scan 2775(19.04), Qvalue=44 117 82 11954 40 76 30 40 50 60 70 80 90 100 110 120 130 0 13 26 39 52 65 78 91 ( X10 0 ) Ref Spec: 75 Ethylbenzene (NIST20.L) 91 106 51 65 77 78 9239 19.1 19.4 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_018[MS Quad Chro]:m/z 91 19.1 19.4 Min RT 0 2 4 6 8 10 Y ( X10 0 ) 63682_018[MS Quad Chro]:m/z 106 RT Mass Response Amount 19.04 91.00 1778 0.012921 19.28 106.00 0 Reviewer: F7XK, 16-Jan-2025 11:40:23 07:00:00 (UTC) Audit Action: Marked Compound Undetected Audit Reason: Invalid Compound ID Page 126 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-77059-1Eurofins Burlington SDG No.: Client Sample ID:6844 Lab Sample ID:200-77059-9 Matrix:64079_005.DLab File ID: Date Collected:TO-15Analysis Method: Air 02/22/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:02/24/2025 13:10 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:213834 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 5.0 5.0U115-07-1 Propylene 5.0 0.50 0.50U75-71-8 Dichlorodifluoromethane 0.50 0.50 0.50U75-45-6 Freon 22 0.50 0.20 0.20U76-14-2 1,2-Dichlorotetrafluoroethane 0.20 0.50 0.50U74-87-3 Chloromethane 0.50 0.50 0.50U106-97-8 n-Butane 0.50 0.14 0.14U75-01-4 Vinyl chloride 0.14 0.20 0.20U106-99-0 1,3-Butadiene 0.20 0.20 0.20U74-83-9 Bromomethane 0.20 0.50 0.50U75-00-3 Chloroethane 0.50 0.20 0.20U593-60-2 Bromoethene(Vinyl Bromide)0.20 0.20 0.20U75-69-4 Trichlorofluoromethane 0.20 5.0 5.0U64-17-5 Ethanol 5.0 0.20 0.20U76-13-1 Freon TF 0.20 0.14 0.14U75-35-4 1,1-Dichloroethene 0.14 5.0 5.0U67-64-1 Acetone 5.0 5.0 5.0U67-63-0 Isopropyl alcohol 5.0 0.50 0.50U75-15-0 Carbon disulfide 0.50 0.50 0.50U107-05-1 3-Chloropropene 0.50 0.50 0.50U75-09-2 Methylene Chloride 0.50 5.0 5.0U75-65-0 tert-Butyl alcohol 5.0 0.20 0.20U1634-04-4 Methyl tert-butyl ether 0.20 0.20 0.20U156-60-5 trans-1,2-Dichloroethene 0.20 0.50 0.50U110-54-3 n-Hexane 0.50 0.20 0.20U75-34-3 1,1-Dichloroethane 0.20 5.0 5.0U108-05-4 Vinyl acetate 5.0 5.0 5.0U141-78-6 Ethyl acetate 5.0 0.50 0.50U78-93-3 Methyl Ethyl Ketone 0.50 0.14 0.14U156-59-2 cis-1,2-Dichloroethene 0.14 0.40 0.40U540-59-0 1,2-Dichloroethene, Total 0.40 0.20 0.20U67-66-3 Chloroform 0.20 5.0 5.0U109-99-9 Tetrahydrofuran 5.0 FORM I TO-15 Page 127 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-77059-1Eurofins Burlington SDG No.: Client Sample ID:6844 Lab Sample ID:200-77059-9 Matrix:64079_005.DLab File ID: Date Collected:TO-15Analysis Method: Air 02/22/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:02/24/2025 13:10 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:213834 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U71-55-6 1,1,1-Trichloroethane 0.20 0.20 0.20U110-82-7 Cyclohexane 0.20 0.14 0.14U56-23-5 Carbon tetrachloride 0.14 0.20 0.20U540-84-1 2,2,4-Trimethylpentane 0.20 0.20 0.20U71-43-2 Benzene 0.20 0.20 0.20U107-06-2 1,2-Dichloroethane 0.20 0.20 0.20U142-82-5 n-Heptane 0.20 0.14 0.14U79-01-6 Trichloroethene 0.14 0.50 0.50U80-62-6 Methyl methacrylate 0.50 0.20 0.20U78-87-5 1,2-Dichloropropane 0.20 5.0 5.0U123-91-1 1,4-Dioxane 5.0 0.20 0.20U75-27-4 Bromodichloromethane 0.20 0.20 0.20U10061-01-5 cis-1,3-Dichloropropene 0.20 0.50 0.50U108-10-1 methyl isobutyl ketone 0.50 0.20 0.20U108-88-3 Toluene 0.20 0.20 0.20U10061-02-6 trans-1,3-Dichloropropene 0.20 0.20 0.20U79-00-5 1,1,2-Trichloroethane 0.20 0.20 0.20U127-18-4 Tetrachloroethene 0.20 0.50 0.50U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.50 0.20 0.20U124-48-1 Dibromochloromethane 0.20 0.20 0.20U106-93-4 1,2-Dibromoethane 0.20 0.20 0.20U108-90-7 Chlorobenzene 0.20 0.20 0.20U100-41-4 Ethylbenzene 0.20 0.50 0.50U179601-23-1 m,p-Xylene 0.50 0.20 0.20U95-47-6 Xylene, o-0.20 0.70 0.70U1330-20-7 Xylene (total)0.70 0.20 0.20U100-42-5 Styrene 0.20 0.20 0.20U75-25-2 Bromoform 0.20 0.20 0.20U98-82-8 Cumene 0.20 0.20 0.20U79-34-5 1,1,2,2-Tetrachloroethane 0.20 0.20 0.20U103-65-1 n-Propylbenzene 0.20 0.20 0.20U622-96-8 4-Ethyltoluene 0.20 FORM I TO-15 Page 128 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-77059-1Eurofins Burlington SDG No.: Client Sample ID:6844 Lab Sample ID:200-77059-9 Matrix:64079_005.DLab File ID: Date Collected:TO-15Analysis Method: Air 02/22/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:1 Level: (low/med)Low 200(mL) 0.32(mm) Date Analyzed:02/24/2025 13:10 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:213834 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHAM.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.20 0.20U108-67-8 1,3,5-Trimethylbenzene 0.20 0.20 0.20U95-49-8 2-Chlorotoluene 0.20 0.20 0.20U98-06-6 tert-Butylbenzene 0.20 0.20 0.20U95-63-6 1,2,4-Trimethylbenzene 0.20 0.20 0.20U135-98-8 sec-Butylbenzene 0.20 0.20 0.20U99-87-6 4-Isopropyltoluene 0.20 0.20 0.20U541-73-1 1,3-Dichlorobenzene 0.20 0.20 0.20U106-46-7 1,4-Dichlorobenzene 0.20 0.20 0.20U100-44-7 Benzyl chloride 0.20 0.20 0.20U104-51-8 n-Butylbenzene 0.20 0.20 0.20U95-50-1 1,2-Dichlorobenzene 0.20 0.50 0.50U120-82-1 1,2,4-Trichlorobenzene 0.50 0.20 0.20U87-68-3 Hexachlorobutadiene 0.20 0.50 0.50U91-20-3 Naphthalene 0.50 FORM I TO-15 Page 129 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 25-Feb-2025 09:43:59 Chrom Revision: 2.3 18-Feb-2025 08:41:40 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250224-64079.b\64079_005.D Lims ID:200-77059-A-9 Client ID:6844 Sample Type:Client Inject. Date:24-Feb-2025 13:10:06 ALS Bottle#:4 Worklist Smp#:5 Purge Vol:200.000 mL Dil. Factor:1.0000 Sample Info:200-0064079-005 Operator ID:vtp Instrument ID:CHAM.i Method:\\chromfs\Burlington\ChromData\CHAM.i\20250224-64079.b\TO15_TO3_Master_Method_AM1.m Limit Group:AI_TO15_ICAL Last Update:25-Feb-2025 05:15:23 Calib Date:21-Dec-2024 11:06:39 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHAM.i\20241220-63469.b\63469_024.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1603 First Level Reviewer: V0FK Date:25-Feb-2025 09:43:58 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.273 ND 7 2 Dichlorodifluoromethane 85 4.374 ND 7 3 Chlorodifluoromethane 51 4.422 ND 7 4 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.743 ND 5 Chloromethane 50 4.877 4.872 0.005 72 1556 0.0399 7 Butane 43 5.177 ND 7 6 Vinyl chloride 62 5.182 ND 8 Butadiene 54 5.294 ND 9 Bromomethane 94 6.049 ND 10 Chloroethane 64 6.327 ND 13 Vinyl bromide 106 6.755 ND 14 Trichlorofluoromethane 101 6.915 ND 7 16 Ethanol 45 7.327 ND 20 1,1-Dichloroethene 96 8.001 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 8.044 ND 7 22 Acetone 43 8.098 ND 7 23 Isopropyl alcohol 45 8.403 ND 7 24 Carbon disulfide 76 8.408 ND 7 26 3-Chloro-1-propene 41 8.718 ND 7 27 Methylene Chloride 49 8.959 ND 7 28 2-Methyl-2-propanol 59 9.194 ND 30 trans-1,2-Dichloroethene 61 9.457 ND 31 Methyl tert-butyl ether 73 9.462 ND 32 Hexane 57 9.965 ND S 35 1,2-Dichloroethene, Total 61 10.200 ND 7 33 1,1-Dichloroethane 63 10.243 ND 34 Vinyl acetate 43 10.248 ND 36 2-Butanone (MEK) 72 11.233 ND 37 cis-1,2-Dichloroethene 96 11.259 ND 7 38 Ethyl acetate 88 11.308 ND * 39 Chlorobromomethane 128 11.672 11.671 0.001 98 363279 10.0 40 Tetrahydrofuran 42 11.709 ND Page 130 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 25-Feb-2025 09:43:59 Chrom Revision: 2.3 18-Feb-2025 08:41:40 Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250224-64079.b\64079_005.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 41 Chloroform 83 11.853 ND 42 1,1,1-Trichloroethane 97 12.153 ND 43 Cyclohexane 84 12.281 ND 44 Carbon tetrachloride 117 12.426 ND 45 Benzene 78 12.784 ND 7 46 1,2-Dichloroethane 62 12.870 ND 47 Isooctane 57 12.987 ND 48 n-Heptane 43 13.298 ND 7 * 49 1,4-Difluorobenzene 114 13.528 13.528 0.000 96 1812578 10.0 51 Trichloroethene 95 13.961 ND 53 1,2-Dichloropropane 63 14.426 ND 54 Methyl methacrylate 69 14.512 ND 55 1,4-Dioxane 88 14.566 ND 57 Dibromomethane 174 14.587 ND 7 58 Dichlorobromomethane 83 14.903 ND 59 cis-1,3-Dichloropropene 75 15.705 ND 61 4-Methyl-2-pentanone (MIBK) 43 15.973 ND 62 Toluene 92 16.342 ND 66 trans-1,3-Dichloropropene 75 16.764 ND 67 1,1,2-Trichloroethane 83 17.144 ND 68 Tetrachloroethene 166 17.326 ND 69 2-Hexanone 43 17.561 ND 70 Chlorodibromomethane 129 17.882 ND 71 Ethylene Dibromide 107 18.123 ND * 73 Chlorobenzene-d5 117 19.033 19.033 0.000 90 1631631 10.0 74 Chlorobenzene 112 19.092 ND 75 Ethylbenzene 91 19.279 ND 76 m-Xylene & p-Xylene 106 19.541 ND S 80 Xylenes, Total 106 20.100 ND 7 78 o-Xylene 106 20.311 ND 79 Styrene 104 20.343 ND 81 Bromoform 173 20.686 ND 82 Isopropylbenzene 105 20.980 ND 83 1,1,2,2-Tetrachloroethane 83 21.499 ND 7 85 N-Propylbenzene 91 21.681 ND 86 2-Chlorotoluene 91 21.831 ND 87 4-Ethyltoluene 105 21.868 ND 88 1,3,5-Trimethylbenzene 105 21.964 ND 91 tert-Butylbenzene 119 22.440 ND 92 1,2,4-Trimethylbenzene 105 22.526 ND 7 93 sec-Butylbenzene 105 22.761 ND 7 94 1,3-Dichlorobenzene 146 22.938 ND 7 95 4-Isopropyltoluene 119 22.970 ND 96 1,4-Dichlorobenzene 146 23.077 ND 7 97 Benzyl chloride 91 23.227 ND 7 98 n-Butylbenzene 91 23.532 ND 7 99 1,2-Dichlorobenzene 146 23.580 ND 102 1,2,4-Trichlorobenzene 180 26.078 ND 7 103 Hexachlorobutadiene 225 26.324 ND 104 Naphthalene 128 26.570 ND 7 Page 131 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 25-Feb-2025 09:43:59 Chrom Revision: 2.3 18-Feb-2025 08:41:40 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Reagents: ATTO15AMISs_00004 Amount Added: 20.00 Units: mL Run Reagent Page 132 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 25-Feb-2025 09:43:59 Chrom Revision: 2.3 18-Feb-2025 08:41:40 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHAM.i\20250224-64079.b\64079_005.D Injection Date:24-Feb-2025 13:10:06 Instrument ID:CHAM.i Operator ID:vtp Lims ID:200-77059-A-9 Lab Sample ID:200-77059-9 Worklist Smp#:5 Client ID:6844 Purge Vol:200.000 mL Dil. Factor:1.0000 ALS Bottle#:4 Method:TO15_TO3_Master_Method_AM1 Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 Min 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Y ( X10 0 0 0 0 ) 64079_005[MS Quad Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 6 7 2 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 5 2 8 )+ * C h l o r o b e n zen e - d5( 1 9 . 0 3 3 ) Page 133 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-77266-1Eurofins Burlington SDG No.: Client Sample ID:6376 Lab Sample ID:200-77266-11 Matrix:64278-06.DLab File ID: Date Collected:TO-15Analysis Method: Air 03/12/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:0.25 Level: (low/med)Low 800(mL) 0.32(mm) Date Analyzed:03/13/2025 13:13 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:214245 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHX.i CAS NO.COMPOUND NAME RESULT Q RLRL 1.3 1.3U115-07-1 Propylene 1.3 0.13 0.13U75-71-8 Dichlorodifluoromethane 0.13 0.13 0.13U75-45-6 Freon 22 0.13 0.050 0.050U76-14-2 1,2-Dichlorotetrafluoroethane 0.050 0.13 0.13U74-87-3 Chloromethane 0.13 0.13 0.13U106-97-8 n-Butane 0.13 0.035 0.035U75-01-4 Vinyl chloride 0.035 0.050 0.050U106-99-0 1,3-Butadiene 0.050 0.050 0.050U74-83-9 Bromomethane 0.050 0.13 0.13U75-00-3 Chloroethane 0.13 0.050 0.050U593-60-2 Bromoethene(Vinyl Bromide)0.050 0.050 0.050U75-69-4 Trichlorofluoromethane 0.050 1.3 1.3U64-17-5 Ethanol 1.3 0.050 0.050U76-13-1 Freon TF 0.050 0.035 0.035U75-35-4 1,1-Dichloroethene 0.035 1.3 1.3U67-64-1 Acetone 1.3 1.3 1.3U67-63-0 Isopropyl alcohol 1.3 0.13 0.13U75-15-0 Carbon disulfide 0.13 0.13 0.13U107-05-1 3-Chloropropene 0.13 0.13 0.13U75-09-2 Methylene Chloride 0.13 1.3 1.3U75-65-0 tert-Butyl alcohol 1.3 0.050 0.050U1634-04-4 Methyl tert-butyl ether 0.050 0.050 0.050U156-60-5 trans-1,2-Dichloroethene 0.050 0.13 0.13U110-54-3 n-Hexane 0.13 0.050 0.050U75-34-3 1,1-Dichloroethane 0.050 1.3 1.3U108-05-4 Vinyl acetate 1.3 1.3 1.3U141-78-6 Ethyl acetate 1.3 0.13 0.13U78-93-3 Methyl Ethyl Ketone 0.13 0.035 0.035U156-59-2 cis-1,2-Dichloroethene 0.035 0.10 0.10U540-59-0 1,2-Dichloroethene, Total 0.10 0.050 0.050U67-66-3 Chloroform 0.050 1.3 1.3U109-99-9 Tetrahydrofuran 1.3 FORM I TO-15 Page 134 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-77266-1Eurofins Burlington SDG No.: Client Sample ID:6376 Lab Sample ID:200-77266-11 Matrix:64278-06.DLab File ID: Date Collected:TO-15Analysis Method: Air 03/12/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:0.25 Level: (low/med)Low 800(mL) 0.32(mm) Date Analyzed:03/13/2025 13:13 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:214245 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHX.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.050 0.050U71-55-6 1,1,1-Trichloroethane 0.050 0.050 0.050U110-82-7 Cyclohexane 0.050 0.035 0.035U56-23-5 Carbon tetrachloride 0.035 0.050 0.050U540-84-1 2,2,4-Trimethylpentane 0.050 0.050 0.050U71-43-2 Benzene 0.050 0.050 0.050U107-06-2 1,2-Dichloroethane 0.050 0.050 0.050U142-82-5 n-Heptane 0.050 0.035 0.035U79-01-6 Trichloroethene 0.035 0.13 0.13U80-62-6 Methyl methacrylate 0.13 0.050 0.050U78-87-5 1,2-Dichloropropane 0.050 1.3 1.3U123-91-1 1,4-Dioxane 1.3 0.050 0.050U75-27-4 Bromodichloromethane 0.050 0.050 0.050U10061-01-5 cis-1,3-Dichloropropene 0.050 0.13 0.13U108-10-1 methyl isobutyl ketone 0.13 0.050 0.050U108-88-3 Toluene 0.050 0.050 0.050U10061-02-6 trans-1,3-Dichloropropene 0.050 0.050 0.050U79-00-5 1,1,2-Trichloroethane 0.050 0.050 0.050U127-18-4 Tetrachloroethene 0.050 0.13 0.13U591-78-6 Methyl Butyl Ketone (2-Hexanone)0.13 0.050 0.050U124-48-1 Dibromochloromethane 0.050 0.050 0.050U106-93-4 1,2-Dibromoethane 0.050 0.050 0.050U108-90-7 Chlorobenzene 0.050 0.050 0.050U100-41-4 Ethylbenzene 0.050 0.13 0.13U179601-23-1 m,p-Xylene 0.13 0.050 0.050U95-47-6 Xylene, o-0.050 0.18 0.18U1330-20-7 Xylene (total)0.18 0.050 0.050U100-42-5 Styrene 0.050 0.050 0.050U75-25-2 Bromoform 0.050 0.050 0.050U98-82-8 Cumene 0.050 0.050 0.050U79-34-5 1,1,2,2-Tetrachloroethane 0.050 0.050 0.050U103-65-1 n-Propylbenzene 0.050 0.050 0.050U622-96-8 4-Ethyltoluene 0.050 FORM I TO-15 Page 135 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FORM I AIR - GC/MS VOA ORGANICS ANALYSIS DATA SHEET Lab Name:Job No.:200-77266-1Eurofins Burlington SDG No.: Client Sample ID:6376 Lab Sample ID:200-77266-11 Matrix:64278-06.DLab File ID: Date Collected:TO-15Analysis Method: Air 03/12/2025 00:00 Sample wt/vol: % Moisture: GC Column:Soil Extract Vol.: Dilution Factor:Soil Aliquot Vol:0.25 Level: (low/med)Low 800(mL) 0.32(mm) Date Analyzed:03/13/2025 13:13 ID:RTX-624 % Solids: Heated Purge: (Y/N)Purge Volume:pH: Analysis Batch No.:214245 ppb v/vUnits: Preparation Batch No.:Instrument ID:CHX.i CAS NO.COMPOUND NAME RESULT Q RLRL 0.050 0.050U108-67-8 1,3,5-Trimethylbenzene 0.050 0.050 0.050U95-49-8 2-Chlorotoluene 0.050 0.050 0.050U98-06-6 tert-Butylbenzene 0.050 0.050 0.050U95-63-6 1,2,4-Trimethylbenzene 0.050 0.050 0.050U135-98-8 sec-Butylbenzene 0.050 0.050 0.050U99-87-6 4-Isopropyltoluene 0.050 0.050 0.050U541-73-1 1,3-Dichlorobenzene 0.050 0.050 0.050U106-46-7 1,4-Dichlorobenzene 0.050 0.050 0.050U100-44-7 Benzyl chloride 0.050 0.050 0.050U104-51-8 n-Butylbenzene 0.050 0.050 0.050U95-50-1 1,2-Dichlorobenzene 0.050 0.13 0.13U120-82-1 1,2,4-Trichlorobenzene 0.13 0.050 0.050U87-68-3 Hexachlorobutadiene 0.050 0.13 0.13U91-20-3 Naphthalene 0.13 FORM I TO-15 Page 136 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 14-Mar-2025 06:26:36 Chrom Revision: 2.3 18-Feb-2025 08:41:40 Eurofins Burlington Target Compound Quantitation Report Data File:\\chromfs\Burlington\ChromData\CHX.i\20250313-64278.b\64278-06.D Lims ID:200-77266-A-11 Client ID:6376 Sample Type:Client Inject. Date:13-Mar-2025 13:13:30 ALS Bottle#:5 Worklist Smp#:6 Purge Vol:200.000 mL Dil. Factor:0.2500 Sample Info:200-0064278-006 Operator ID:wrd Instrument ID:CHX.i Method:\\chromfs\Burlington\ChromData\CHX.i\20250313-64278.b\TO15_MasterMethod_X.m.m Limit Group:AI_TO15_ICAL Last Update:14-Mar-2025 06:26:36 Calib Date:28-Feb-2025 12:24:30 Integrator:RTE ID Type: Deconvolution ID Quant Method:Internal Standard Quant By:Initial Calibration Last ICal File:\\chromfs\Burlington\ChromData\CHX.i\20250227-64128.b\64128-22.D Column 1 :RTX-624 ( 0.32 mm)Det: MS SCAN Process Host:CTX1609 First Level Reviewer: YWL8 Date:14-Mar-2025 06:26:36 Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 1 Propene 41 4.232 ND 3 Dichlorodifluoromethane 85 4.323 ND 4 Chlorodifluoromethane 51 4.371 ND 5 1,2-Dichloro-1,1,2,2-tetrafluoro 85 4.682 ND 6 Chloromethane 50 4.794 ND 7 Vinyl chloride 62 5.099 ND 8 Butane 43 5.099 ND 9 Butadiene 54 5.211 ND 10 Bromomethane 94 5.907 ND 12 Chloroethane 64 6.174 ND 14 Vinyl bromide 106 6.591 ND 15 Trichlorofluoromethane 101 6.752 ND 17 Ethanol 45 7.223 7.223 0.048 82 878 0.1214 M 20 1,1-Dichloroethene 96 7.806 ND 21 1,1,2-Trichloro-1,2,2-trifluoroe 101 7.843 ND 22 Acetone 43 7.907 ND 7 24 Carbon disulfide 76 8.213 8.202 0.011 98 3018 0.0683 23 Isopropyl alcohol 45 8.234 ND 7 27 3-Chloro-1-propene 41 8.491 ND 28 Methylene Chloride 49 8.721 ND 29 2-Methyl-2-propanol 59 9.015 ND 32 trans-1,2-Dichloroethene 61 9.213 ND 31 Methyl tert-butyl ether 73 9.245 ND S 33 1,2-Dichloroethene, Total 61 9.665 ND 7 34 Hexane 57 9.716 ND 36 1,1-Dichloroethane 63 9.967 ND 35 Vinyl acetate 43 9.983 ND 37 2-Butanone (MEK) 72 10.946 ND 38 cis-1,2-Dichloroethene 96 10.957 ND 39 Ethyl acetate 88 11.026 ND * 40 Chlorobromomethane 128 11.358 11.358 0.000 86 102746 10.0 41 Tetrahydrofuran 42 11.428 ND Page 137 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 14-Mar-2025 06:26:36 Chrom Revision: 2.3 18-Feb-2025 08:41:40 Data File:\\chromfs\Burlington\ChromData\CHX.i\20250313-64278.b\64278-06.D Compound Sig RT (min.) Adj RT (min.) Dlt RT (min.)Q Response OnCol Amt ppb v/v Flags 42 Chloroform 83 11.535 ND 43 1,1,1-Trichloroethane 97 11.840 ND 44 Cyclohexane 84 11.973 ND 45 Carbon tetrachloride 117 12.118 ND 46 Benzene 78 12.455 ND 47 1,2-Dichloroethane 62 12.530 ND 48 Isooctane 57 12.674 ND 49 n-Heptane 43 12.979 ND * 50 1,4-Difluorobenzene 114 13.188 13.188 0.000 93 487619 10.0 52 Trichloroethene 95 13.616 ND 55 1,2-Dichloropropane 63 14.065 ND 56 Methyl methacrylate 69 14.167 ND 58 Dibromomethane 174 14.220 ND 57 1,4-Dioxane 88 14.263 ND 59 Dichlorobromomethane 83 14.536 ND 60 cis-1,3-Dichloropropene 75 15.333 ND 62 4-Methyl-2-pentanone (MIBK) 43 15.616 ND 63 Toluene 92 15.969 ND 67 trans-1,3-Dichloropropene 75 16.381 ND 68 1,1,2-Trichloroethane 83 16.751 ND 69 Tetrachloroethene 166 16.959 ND 7 70 2-Hexanone 43 17.200 ND 71 Chlorodibromomethane 129 17.483 ND 72 Ethylene Dibromide 107 17.719 ND * 73 Chlorobenzene-d5 117 18.634 18.634 0.000 84 314946 10.0 74 Chlorobenzene 112 18.692 ND 75 Ethylbenzene 91 18.880 ND 7 76 m-Xylene & p-Xylene 106 19.142 ND S 78 Xylenes, Total 106 19.600 ND 7 79 o-Xylene 106 19.912 ND 80 Styrene 104 19.950 ND 81 Bromoform 173 20.303 ND 82 Isopropylbenzene 105 20.624 ND 83 1,1,2,2-Tetrachloroethane 83 21.148 ND 85 N-Propylbenzene 91 21.346 ND 86 2-Chlorotoluene 91 21.496 ND 87 4-Ethyltoluene 105 21.549 ND 88 1,3,5-Trimethylbenzene 105 21.646 ND 91 tert-Butylbenzene 119 22.127 ND 92 1,2,4-Trimethylbenzene 105 22.218 ND 93 sec-Butylbenzene 105 22.453 ND 94 1,3-Dichlorobenzene 146 22.630 ND 7 95 4-Isopropyltoluene 119 22.667 ND 96 1,4-Dichlorobenzene 146 22.769 ND 7 97 Benzyl chloride 91 22.913 ND 7 98 n-Butylbenzene 91 23.218 ND 99 1,2-Dichlorobenzene 146 23.250 ND 7 102 1,2,4-Trichlorobenzene 180 25.642 25.636 0.006 76 575 0.0252 103 Hexachlorobutadiene 225 25.877 ND 104 Naphthalene 128 26.107 26.096 0.011 1 1052 0.0212 Page 138 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 14-Mar-2025 06:26:36 Chrom Revision: 2.3 18-Feb-2025 08:41:40 QC Flag Legend Processing Flags 7 - Failed Limit of Detection Review Flags M - Manually Integrated Reagents: ATTO15XISs_00003 Amount Added: 20.00 Units: mL Run Reagent Page 139 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 14-Mar-2025 06:26:36 Chrom Revision: 2.3 18-Feb-2025 08:41:40 Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHX.i\20250313-64278.b\64278-06.D Injection Date:13-Mar-2025 13:13:30 Instrument ID:CHX.i Operator ID:wrd Lims ID:200-77266-A-11 Lab Sample ID:200-77266-11 Worklist Smp#:6 Client ID:6376 Purge Vol:200.000 mL Dil. Factor:0.2500 ALS Bottle#:5 Method:TO15_MasterMethod_X.m Limit Group:AI_TO15_ICAL Column: RTX-624 ( 0.32 mm)Y Scaling: Method Defined: Scale to the Nth Largest Target: 1 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 Min 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 Y ( X 1 0 0 0 0 ) 64278-06[MS SCAN Chro]:Total * C h l o r o b r o m o m e t h a n e ( 1 1 . 3 5 8 ) * 1 ,4- D i f l u o r o b e n zen e ( 1 3 . 1 8 8 ) * C h l o r o b e n zen e - d 5 ( 1 8 . 6 3 4 )+ Page 140 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Report Date: 14-Mar-2025 06:26:36 Chrom Revision: 2.3 18-Feb-2025 08:41:40 Manual Integration/User Assign Peak Report Eurofins Burlington Data File:\\chromfs\Burlington\ChromData\CHX.i\20250313-64278.b\64278-06.D Injection Date:13-Mar-2025 13:13:30 Instrument ID:CHX.i Lims ID:200-77266-A-11 Lab Sample ID:200-77266-11 Client ID:6376 Operator ID:wrd ALS Bottle#:5 Worklist Smp#:6 Purge Vol:200.000 mL Dil. Factor:0.2500 Method:TO15_MasterMethod_X.m Limit Group:AI_TO15_ICAL Column:RTX-624 ( 0.32 mm)Detector MS SCAN 17 Ethanol, CAS: 64-17-5 Signal: 1 Processing Integration Results RT: 7.21 Area: 1162 Amount: 0.160702 Amount Units: ppb v/v 6.9 7.1 7.3 7.5 Min 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 Y ( X 1 0 ) m/z 45.0 7 . 2 1 2 Manual Integration Results RT: 7.22 Area: 878 Amount: 0.121426 Amount Units: ppb v/v 6.9 7.1 7.3 7.5 Min RT 0 4 8 12 16 20 24 28 32 36 40 44 Y ( X 1 0 ) m/z 45.0 7 . 2 2 3 Reviewer: YWL8, 14-Mar-2025 06:26:09 07:00:00 (UTC) Audit Action: Manually Integrated Audit Reason: Assign Peak Page 141 of 141 4/9/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Wright County, MN Block 34 Created by: City of Monticello Overview Multi Parcel Instr Type Qualied Sale Sale Date Book Page Sale Type Buyer Seller Sale Price Adjusted Sale Price eCRV #eCRV Sale Type S.S. Rcmd.S.S. Rjt. Rsn. Transact Num N WD U 10/31/2023 I- Improved CITY OF MONTICELLO EDA JAMES B & CHERYL A WOLFF $465,000 $465,000 1596185 I 1 03B- GOVERNMENT N WD U 4/21/2005 I- Improved WOLFF JAMES US BANK NA $145,000 $145,000 95623 I 14-CFD/INT PA 95623 2024 Assessment 2023 Assessment 2022 Assessment 2021 Assessment 2020 Assessment +Estimated Land Value $201,600 $155,300 $116,100 $116,000 $116,000 +Estimated Building Value $160,900 $160,900 $128,000 $121,000 $114,000 +Estimated Machinery Value $0 $0 $0 $0 $0 =Total Estimated Market Value $362,500 $316,200 $244,100 $237,000 $230,000 %Change 14.64%29.54%3.00%3.04%0.00% 2024 Payable 2023 Payable 2022 Payable 2021 Payable Estimated Market Value $316,200 $244,100 $237,000 $230,000 -Excluded Value $0 $0 $0 $0 -Homestead Exclusion $0 $0 $0 $0 =Taxable Market Value $316,200 $244,100 $237,000 $230,000 Net Taxes Due $6,160.24 $4,675.26 $5,196.27 $4,985.27 +Special Assessments $643.76 $666.74 $689.73 $712.73 =Total Taxes Due $6,804.00 $5,342.00 $5,886.00 $5,698.00 %Change 27.37%-9.24%3.30%-2.00% Payment #Receipt #Receipt Print Date Amt Write Off Amt Charge Amt Payment 1069136 6/25/2024 $0.00 $0.00 $6,804.00 1070828 6/25/2024 $0.00 $0.00 ($6,804.00) 1069136 5/23/2024 $0.00 $0.00 ($6,804.00) 955113 10/5/2023 $0.00 $0.00 ($2,671.00) 865353 5/3/2023 $0.00 $0.00 ($2,671.00) 840493 1804486 10/17/2022 $0.00 $0.00 ($2,943.00) 777526 1770104 5/13/2022 $0.00 $0.00 ($2,943.00) 710329 1729213 10/14/2021 $0.00 $0.00 ($2,849.00) 650604 1694778 5/12/2021 $0.00 $0.00 ($2,849.00) 590250 1655320 10/15/2020 $0.00 $0.00 ($2,907.00) 529079 1620971 5/14/2020 $0.00 $0.00 ($2,907.00) 462591 1580499 10/16/2019 $0.00 $0.00 $0.00 404257 1540519 5/13/2019 $0.00 $0.00 $0.00 Summary Parcel ID 155010034010 Property Address 216 PINE ST MONTICELLO MN 55362 Sec/Twp/Rng 11-121-025 Brief Tax Description SECT-11 TWP-121 RANGE-025 ORIGINAL PLAT MONTICELLO LOT-001 BLOCK-034 (Note: Not to be used on legal documents) Class 958 - 5E MUNICIPAL-PUBLIC SERVICE-OTHER District (1101) CITY OF MONTICELLO-0882 School District 0882 (Note: Class refers to Assessor's Classication Used For Property Tax Purposes) Sales Valuation Taxation Taxes Paid Sketches Wright County, MN Map The information provided on this site is intended for reference purposes only. The information is not suitable for legal, engineering, or surveying purposes. Wright County does not guarantee the accuracy of the information contained herein. | User Privacy Policy | GDPR Privacy Notice Last Data Upload: 2/5/2025, 10:46:19 AM Contact Us Developed by EDA Agenda: 5/14/2025 6.Economic Development Manager’s Report Prepared by: Economic Development Manager Meeting Date: 5/14/2025 ☒Other Business Reviewed by: N/A Approved by: N/A REFERENCE AND BACKGROUND 1.Downtown Façade Forgivable Loan Progress: With warmer weather settling into place, the downtown façade projects continue to move forward toward completion. At this time, there are two outstanding projects, the Monticello Family Dentistry building located at 201 West Broadway with a total forgivable loan of $12,513 as well as Jon and Lucille Murray’s building housing Lucille Murray’s Studio of Dance located at 155 West Broadway, with a total forgivable loan of $100,000. The Monticello Family Dentistry is closing out the project with recent submission of final lien waivers for their staining, concrete work, signage and door updates. Jon and Lucille Murray (Lucille Murray Dance Studio) continue the final façade work tasks on the north facing alley portion of their building. Work activities involving new windows, brick cleaning and staining, and new awnings on the Walnut and Broadway sides of the building were completed in late fall 2024. 2.Historic Sign Plaque Update: Staff continue to research alternative sign options for the historic signs on completed downtown façade projects. Staff is reaching out to current and past vendors the city has used for park projects for quotes and proofs of the signage to compare vendors with the goal of achieving better alignment of signage depicting the historic sense of downtown. Staff’s intention is to bring sign designs to a June workshop provided all requested pricing and signage proofs are available at that time . 3.Economic Development Authority Attorney: The EDA’s primary staff attorney Gina Fiorini with Kennedy & Graven has informed City staff that she has moved to the firm of Kutak Rock. The EDA previously directed staff to continue to work with Gina due to current projects in progress. Several of these projects are in various stages of progression and utilization of EDA legal counsel services, hence staff believe it is best to wait until later in the year before further exploring interest and EDA Agenda: 5/14/2025 qualifications from other firms, including prior EDA firm Kennedy & Graven. As the year progresses, staff will follow up with the EDA on this matter later to make a final determination in the EDA’s best interest. 4.Business Retention & Expansion Efforts: The Industrial and Economic Development Committee (IEDC) and the EDA will be increasing business retention and expansion activities in 2025. The first BR&E visit took place on May 6, 2025. Another BR&E visit is scheduled for May 15, 2025. The goal is to conduct BR&E visits with a mix of Downtown and industrial businesses over the reaming 7 months of 2025. The purpose of the visits is to demonstrate support for local business investment and gather feedback on assistance and/or other tools to further encourage business development and retention in the community. Please see attached flyer. 5.UMC Expansion Project (2022) MIF (Minnesota Investment Fund) Grant Status: MN-DEED staff met with City staff and UMC officials on April 22, 2025. MN-DEED staff reviewed the grant performance (job creation goals and results) and outlined and discussed potential grant closeout steps reflecting UMC’s situation. UMC officials then followed up with MN-DEED staff on the potential grant close out steps with some additional information for review and comments. The result of this discussion and sharing of information is that MN-DEED decided to give full credit to UMC for meeting its job creation goals of 43 FTEs. No funding claw backs will be required. MN-DEED will be sending a grant closeout document to the City in the near future. 6.Rustech Brewing, LLC – Equipment Sale Occurring: Staff continues to stay in touch with Bill Burt, the owner Rustech, regarding the wind down of the business venture and disposing of the assets. The EDA has a first security interest through a Purchase Money Security Interest (PMSI) on a list of brewing equipment through a valid UCC (Universal Commercial Code) filing with the MN Secretary of State’s office. Mr. Burt is receiving offers for the equipment and has been updating staff on the quotes to assess level of acceptance. 7.Multi-Family Housing Market Update: City staff continue to monitor the Savanna Vista Apartment development lease up progress. As you will recall this development consists of two buildings with 100 units each [total of 200 units]. Recent information indicates that a total of 118 units out of 200 available are leased (vacancy of 41 percent); one building opened on August 1, 2024, while the second building opened on November 1, 2024. This development, which has an underground parking garage and other amenities including a club house with meeting rooms, game room, an outside swimming pool, and pickleball courts, is a market rate project and did not seek any public financial assistance. EDA Agenda: 5/14/2025 8.Various Commercial-Industrial Projects: Project Corona and Project Kraken RFI Status (MN-DEED Prospects): City staff have responded to several recent MN-DEED prospects by completing (RFI) Request for Information packets wherein City owned sites located in Otter Creek Business Park (OCBP) have been offered. In some instances these prospects prefer to locate in an available industrial building. In other instances, the prospect is seeking a greenfield site to build a new facility to meet their specific needs. Two recent MN- DEED prospects (April submittal dates) include Project Corona (it is not beer production) and Project Kraken. The former is seeking a site of 5 to 10 acres and plans to invest $15,000,000 in a new facility and equipment. It has a small retail-tourism space for sales of frozen dairy products. Approximately 50 employees would be needed to operate this facility. Project Kraken on the other hand prefers an available building of 30,000 sq. ft. which could be expanded to 150,000 sq. ft. over the next 3 to 5 years. This firm would hire 150 FTE staff to operate its facility to make and assemble medical equipment. There are currently no available vacant industrial buildings in Monticello of this size, so staff did not submit an RFI packet for Project Kraken. Previously in 2025, the City submitted an RFI packet for Project Megawatt, a solar panel fabrication firm, seeking 85 acres ($757 million; 527 new FTE jobs). Headwaters Villa Twin Homes: The 60-unit Phase 1 twin home housing development project for ages 55 + on 7th Street West is now complete. The 22-twin home unit Phase 2 project is also just getting started with site prep, grading and utility installation activities. Those units will be completed by late 2025. The total number of rental units in phases 1 and 2 totals 82 with 33 units required (40 percent) to be rented by households of low- and moderate- income levels (60 percent of the AMI; Wright County). Big River Commercial Development - Chelsea Road: Chipotle opened its restaurant in this commercial development project located on Chelsea Road near Fenning Avenue in late December 2024. A Starbucks coffee shop is also expected to open in the near future after it completes its interior finish work. Additional pad site developments in this 10-acre project include Les Schwab Tire (15,136 sq. ft. at 669 Chelsea Road) and Valvoline Oil (2,673 sq. ft. located at 721 Chelsea Road). Permits for both of these developments will be issued in the coming weeks. A concept plan of the Big River Development is attached to this Project Update. EDA Agenda: 5/14/2025 Fairfield By Marriott Hotel: A groundbreaking ceremony was held for the 98-room hotel on April 29, 2025. The hotel development project will also feature a Boulder Tap House Restaurant as an attached facility. The hotel will also have small conference rooms to accommodate meetings and events in its facilities. The developer of the nearly $21,500,000 project is expecting the restaurant to be open in November 2025 with the hotel to be completed by mid-summer 2026. A total of 45 to 50 jobs will be created through this development. The City and County used Tax Abatement as a financing assistance tool for the development. It was the City’s very first use of this tool. The combined assistance from the City and County will total $742,655 over a 10-year time frame. Discount Tire: A proposed Discount Tire sales and service store is working its way through the final review steps. This facility is proposed for a 2.04-acre parcel located at 1300 7th Street East. Wendy’s Restaurant: A building permit for a new Wendy’s Restaurant is currently under review. The location of the proposed 2,300 sq. ft. restaurant development is at 261 Highland Way. Panera Bread: A Panera Bread restaurant opened in Monticello near Target in late 2024. The address of the Panera Bread restaurant is 1495 East 7th Street. Data Center Campus Proposals: Two fairly large data center campus proposals have been submitted to the City for review and entitlement processes. These two proposals are sizeable and have considerable review and approval processes to go through. These steps include environmental review steps and land entitlement through the City. The Minnesota Public Utilities Commission may also have some review processes as well. And, finally Xcel Energy, the electric utility serving these sites, also has its own service studies that are expected to be completed in the future as well. 9.Building Permit Update – Quarter 1 – 2025: Please see the Monticello building permit results for the first quarter of 2025. Exhibit a is attached. EDA Agenda: 5/14/2025 10.Prospect List – Please see Exhibit b. BUILDING PERMIT ACTIVITY AND VALUATION PERMIT TYPE 2024 1st Qtr Valuation YTD Valuation 2025 1st Qtr Valuation YTD Valuation Single Family 17 $4,433,995 17 $4,433,995 11 $3,100,261 11 $3,100,261 Multi-Family Townhomes 12 $1,200,000 12 $1,200,000 0 $0 0 $0 Commercial-Industrial New - Remodel - Addition 6 $327,200 6 $327,200 6 $923,615 6 $923,615 PERMIT TYPE 2024 2nd Qtr Valuation YTD Valuation 2025 2nd Qtr Valuation YTD Valuation Single Family 14 $3,894,720 31 $8,328,715 Multi-Family Townhomes 12 $1,200,000 24 $2,400,000 Comercial-Industrial New - Remodel - Addition 9 $1,507,400 15 $1,834,600 BUILDING PERMIT ACTIVITY AND VALUATION PERMIT TYPE 2024 3rd Qtr Valuation YTD Valuation 2025 3rd Qtr Valuation YTD Valuation Single Family 14 $3,232,288 45 $11,561,003 Multi-Family Townhomes 14 $1,400,000 38 $3,800,000 Comercial-Industrial New - Remodel - Addition 9 $3,348,000 24 $5,182,600 PERMIT TYPE 2024 4th Qtr Valuation YTD Valuation 2024-4th Qtr Valuation YTD Valuation Single Family 3 $689,151 48 $12,250,154 Multi-Family Townhomes 0 $0 38 $3,800,000 Comercial-Industrial New - Remodel - Addition 3 $379,750 27 $5,562,350 Exhibit A: Building Permit Summary - 1st Qtr - 2025 Date of Contact Company Name Business Category Project Description Building-Facility Retained Jobs New Jobs Total Investment Project Status 5/22/2018 Karlsburger Foods Food Products Mfg.Facilty Expansion 20,000 sq. ft. +/- 42 10 to 20 $4,500,000 On Hold 2/28/2022 Project Emma II Light Ind-Assembly New Construction 20,000 sq. ff. 0 4 $1,350,000 Active Search 10/28/2021 Project Stallion Technology Service New Construction 42,000 sq. ft. 40 $3,600,000 Active Search 8/11/2022 Project Sing Precision Machining New Construction 400,000 sq. ft. 0 500 $90,000,000 Active Search 5/30/2023 Project Flower-M & M Commercial Concept Expansion ????Concept 6/9/2023 Project Pez Mfg New Construction 6,000 to 8,500 sq. ft. 12 2 $1.300,000 Active Search 8/16/2023 Project Lodge RT4 Lodging-Hopsitality New Construction 98 Room Hotel N/A 30 $19,500,000 Identified Site 9/19/2023 Project Panda #4 SZ Childcare Facility New Construction ? N/A ? $2,000,000 +/- Active Search 2/12/2024 Project Lodge- MSMWDC Lodging-Hospitality New Construction ? 0 10 $12,000,000 Identified Site 3/5/2024 Project Panda 20- MS Child Care Facility New Construction 25,000 sq. ft. 0 20 $5,500,000 Active Search 3/29/2024 Project ET-BB-12-9 Industrial Relocate - Existing Bldg 12,000 sq. ft. 12 $1,150,000 Identified Site 4/12/2024 Project Rest B52 Restaurant New build out-Finish 5,000 sq. ft. +/- 0 15 1500000 +/- Identified Site 5/30/2024 Project EP-BDDC LACW Data Center New Construction ?? ?? ?? Identified Site 5/31/2024 Project DC2-NWG-GB Data Center New Construction ?? 0 40 ?? Active Search 7/30/2024 Project EPG 40x2-50 Industrial New Construction 40,000 sq. ft. 0 40 $4,000,000 Active Search 12/3/2024 Project LEI Pack Industrial New Construction 52,500 sq. ft. 0 21 $16,500,000 Active Search 1/14/2025 Project Megawatt Industrial New Construction 650,000 to 1,300,000 sq. ft. 0 592 $757,000,000 Active Search 2/5/2025 Project Nordic Resturant-Taphouse Relocate - Remodel-4,300 sq. ft. 9 1 $1,090,000 Identified Site 4/17/2025 Project Corona Industrial - Retail New Construction 30,000 to 50,000 sq. ft. 0 50 $15,000,000 Active Search 4/15/2025 Project BB Food Service-Retail Renovation 6,000 sq. ft. 0 25 $2,500,000 Identifed Site Contacts: M = 04 YTD = 09 PROSPECT LIST 05/08/2025 Exhibit B