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HomeMy WebLinkAbout9102T_VanceCoTS_LeachateReleaseAssmtRpt_FID1838475_20240516May 8, 2024 Mr. Ervin Lane 1646 Mail Service Center Raleigh, North Carolina 27699 RE: Recommended Soil Sampling - Results Vance County Transfer Station Henderson, North Carolina Dear Mr. Lane: On Thursday, March 7th, 2024 during a North Carolina Department of Environmental Quality (NCDEQ) inspection at the Vance County Transfer Station, standing water was observed near the southern end of transfer trailer loading bay. Upon the discovery of a repair project to the area, NCDEQ representatives recommended the facility collect a confirmation soil sample to ensure any possibly contaminated soils were removed. A plan to sample the potentially impacted soils was submitted and approved1 by the NCDEQ. This letter report summarizes the results from the soil sampling. Sampling On April 6th, 2024, S+G personnel collected two (2) discrete grab samples in locations shown on to evaluate soil quality in the southern area of the transfer station. Each soil sample was collected from a depth between one (1) and two (2) feet below grade. Soil sample SS-1 and SS-2 were analyzed for the Appendix I list of constituents (40 CFR 258 Appendix I), 1,4 dioxane, total phosphorous, sulfates, nitrates, and pH by Waypoint Analytical Laboratories Inc. (Waypoint), a North Carolina certified laboratory. Due to the naturally occurring inorganic metals in the soils of North Carolina, background samples (BG-1, BG-2 and BG-3) collected during a previous investigation, were used to compare analytical results2. Background soil samples were collected from roughly 18 inches below grade, these locations are also shown on . The previous background samples were analyzed for the Appendix I list of constituents (40 CFR 258 Appendix I), sulfate, nitrate, and pH by Prism Laboratories, Inc. 1 Approval of Recommended Sampling Plan, FID 1833595 – NCDEQ, April 04, 2024 2 Prism Laboratories, Inc. Analytical Results, Prism Work Order: 8040411, May 4, 2018 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Mr. Lane May 8, 2024 Page 2 of 3 Results Soil sample analytical data was compared to background analytical data as well as the NCDEQ February 2024 Preliminary Soil Remediation Goals (PSRGs). Both Industrial and Protection of Groundwater PSRGs were used for this evaluation. Of the constituents analyzed, only cobalt exceeded Groundwater Protection PSRGs. Results from background samples indicated cobalt is naturally occurring in the area at concentrations similar to those detected in SS-1 and SS- 2. An additional Synthetic Precipitation Leaching Procedure (SPLP) analysis was performed on both soil samples (SS-1 and SS-2), and the results were compared with the NCAC 02L Standards for Groundwater Protection for Total Cobalt (1 μg/L). SPLP results indicated cobalt concentrations were just above the NCAC 02L standard limit in SS-1 and SS-2 however, these results are “J-flagged” as being between the method detection limit and practical quantitation limit and are estimated values. These results are summarized in . The laboratory report is included as . Evaluation of Natural Occurrence of Cobalt To further evaluate the natural occurrence of cobalt at the measured concentrations, S+G reviewed USGS National Uranium Resource Evaluation (NURE)3 stream bed sample analysis in this area of Vance County. The Nure samples were analyzed for a variety of inorganic constituents to evaluate natural occurrence of these in stream sediments with the understanding that this data may indicate uranium deposits in the area. Data from four (4) historical NURE sediment samples taken near the site were used: 5300348, 5300350, 5300384, and 5300386. Of those samples, 5300386 reported cobalt concentrations above PSRGs for groundwater protection, which support the natural occurrence of cobalt in soils in Vance County. NURE sediment sample locations are shown in and relevant concentration data in . Conclusions While the analytical results exhibit an exceedance of the Groundwater Protection PSRGs (solid sample) for cobalt in SS-1 and SS-2, the three (3) background samples, collected at various locations across the facility, all exceed the Groundwater Protection PSRGs for cobalt. An additional NURE sediment sample was also reported with higher concentrations (17mg/kg) than the PSRGs for groundwater protection for cobalt. The lack of organic constituents, the background soil sample results, and the NURE sediment sample (5300386) result indicate that cobalt concentrations are spatially variable and can occur naturally at concentrations above PSRGs. Based on this investigation, and given the SPLP analytical results are J-flagged values (estimated values), we believe the results of cobalt reported in SS-1 and SS-2 are likely due to naturally occurring inorganic constituents and no further action is warranted. 3 Geochemistry of sediments in the US from the NURE-HSSR database, https://mrdata.usgus.gove/nure/sediment DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Mr. Lane May 8, 2024 Page 3 of 3 If you have any questions or require additional information, please contact us at 919-828-0577 or by email below. Sincerely, SMITH GARDNER, INC. Lou J. Krasuski Joan A. Smyth, P.G. Project Manager Senior Hydrogeologist lou@smithgardnerinc.com joan@smithgardnerinc.com Attachments - Figure 1 Figure 2 Table 1 - Detected Constituents – Vance County Transfer Station Attachment A - Laboratory Report cc: John Pfleger – GFL Environmental Randy Deming – GFL Environmental Jason Watkins – NCDEQ Drew Hammonds – NCDEQ Amanda Thompson – NCDEQ File H:\Projects\Waste Industries (Vance County Transfer Station)\GFLVANCE 24-1\Results\Vance County Recommended Soil Sampling Results.docx DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 5/8/2024 This page intentionally left blank. DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 This Page Intentionally Left Blank DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 This Page Intentionally Left Blank DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Table 1 Detected Constituents Vance County Transfer Station April 6, 2024 BG-1 BG-2 B-3 SS-1 SS-1 (SPLP)SS-2 SS-2 (SPLP)5300348 (NURE) 5300350 (NURE) 5300384 (NURE) 5300386 (NURE) mg/Kg mg/Kg mg/Kg mg/Kg µg/L mg/Kg µg/L mg/Kg mg/Kg mg/Kg mg/Kg 4/20/2018 4/20/2018 4/20/2018 4/26/2024 4/26/2024 4/26/2024 4/26/2024 11/2/1976 11/2/1976 11/3/1976 11/3/1976 Arsenic 3 5.8 10 1.1 J 0.39 J 0.66 J 0.74 NA 0.848 NA 1 1 NA NABarium47000580700297032162NA118NA130422220Beryllium470634.35 J 0.14 J 0.4 0.547 NA 0.261 J NA 1 0.5 0.5 1 Chromium (Total)NE NE 10 27 29 16 36.4 7 J 24.4 BDL 8 9 9 22 Chromium (III)3100000 360000 NA NA NA NA 36.4 J NA 24.4 NA NA NA NA NA Chromium (VI)6.5 3.8 NA NA NA NA 0.216 NA 0.176 NA NA NA NA NA Cobalt 70 0.9 1 6.4 24 16 11.1 2 J 26.4 3 J BDL BDL BDL 17Copper93007001000241102039NA49.5 NA 2 3 BDL 5LeadNE270156.8 0.53 9.1 2.74 NA 1.06 NA BDL 12 BDL BDL Nickel 4600 130 100 7.1 32 13 23.5 NA 24 NA BDL BDL BDL 5 Silver 1200 3.4 20 BDL BDL BDL 0.011 J NA 0.0089 J NA 0.1 BDL BDL 0.2 Thallium 2.3 2.8 2 0.069 J 0.081 J 0.084 J 0.233 J NA 0.141 J NA NA NA NA NA Vanadium 1200 140 7 97 70 84 72.2 NA 72.2 NA 10 80 60 180Zinc700001200100021 J 45 21 J 61.7 NA 73.1 NA 5 25 5 10 Acetone 210000 25 NE 0.96 0.029 0.2 BDL NA 0.006 J NA NA NA NA NA pH NE NE NE 4.6 7.0 5.8 7.8 NA 7.8 NA NA NA NA NA Note: Preliminary Soil Remediation Goals (PSRG) from February 2024 DEQ Table and Companion Notes NA - Not Analyzed NE - PSRG has not been established BDL - Below Detection Limit J - "J-qualified" defined by the laboratory as "Detected but below the Reporting Limit; therefore, result is an estimated concentration." D- The sample was analyzed at Dilution Bold/Shaded - Concentration is greater than the lower value between the GW and Industrial PSRG Bold/Shaded/Italicized - Concentration is greater than NCAC 02L Groundwater Standard Data from Waypoint Laboratories Report #: 24-100-0103 Organic Indicator Inorganic Constituents NCDEQ Preliminary Soil Remediation Goals (PSRGs) (mg/Kg) Industrial Use NCDEQ Preliminary Soil Remediation Goals (PSRGs) (mg/Kg) Groundwater Protection 15A NCAC 02L .0202 (µg/L) DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 This page intentionally left blank. DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   5/1/2024 Smith & Gardner, Inc. Seth C. Rickerts 14 N. Boylan Avenue Raleigh, NC, 27603 Ref: Analytical Testing Revised Lab Report Number: 24-100-0103 Client Project Description: GFL Vance 24-1 Dear Seth C. Rickerts: Waypoint Analytical, LLC (Charlotte) received sample(s) on 4/9/2024 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202437735State ProgramNorth Carolina 12/31/2024402State ProgramNorth Carolina 07/31/202499012State ProgramSouth Carolina 12/31/202499012State ProgramSouth Carolina Laboratory ID: WP MTN: Waypoint Analytical, LLC., Memphis, TN State Program Lab ID Expiration Date 02/28/202540750State ProgramAlabama 02/07/202588-0650State ProgramArkansas 06/30/20242904State ProgramCalifornia 06/30/2024E871157State Program - NELAPFlorida 11/14/2025C044State ProgramGeorgia 06/30/202404015State ProgramGeorgia 10/31/2024200078State Program - NELAPIllinois 06/30/202480215State ProgramKentucky 12/31/2024KY90047State ProgramKentucky 12/31/2024LA037State Program - NELAPLouisiana 06/30/202404015State Program - NELAPLouisiana 11/14/2025MSState ProgramMississippi 07/31/202447701State ProgramNorth Carolina 12/31/2024415State ProgramNorth Carolina 05/31/202468-03195State Program - NELAPPennsylvania 06/30/202484002State ProgramSouth Carolina 11/14/202502027State ProgramTennessee 09/30/2024T104704180State Program - NELAPTexas 06/30/202400106State ProgramVirginia 09/14/2024460181State Program - NELAPVirginia Page 1 of 1 00016/24-100-0103 Page 2 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Report Number: Sample Summary Table Client Project Description: 24-100-0103 GFL Vance 24-1 Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID 04/06/2024 10:00Solids 90345 SS-1 04/09/2024 14:10 04/06/2024 10:00Solids 90345 SS-1 04/09/2024 14:10 6020B 04/06/2024 10:00Solids 90345 SS-1 04/09/2024 14:10 SW-7199 04/06/2024 10:30Solids 90346 SS-2 04/09/2024 14:10 04/06/2024 10:30Solids 90346 SS-2 04/09/2024 14:10 SW-7199 04/06/2024 10:30Solids 90346 SS-2 04/09/2024 14:10 6020B 04/06/2024 10:00 91715 SS-1 04/09/2024 14:10 1312 04/06/2024 10:00 91715 SS-1 04/09/2024 14:10 6010D 04/06/2024 10:30 91716 SS-2 04/09/2024 14:10 6010D 04/06/2024 10:30 91716 SS-2 04/09/2024 14:10 1312 WP MTN - Memphis, TN: Waypoint Analytical - TN, Memphis, TN Page 3 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-100-0103 Report Limit Project:GFL Vance 24-1 V 90345SS-1 0.740 04/12/2024 12:546020BArsenicmg/Kg - dry 0.0943 162 04/12/2024 12:546020BBariummg/Kg - dry 0.047 0.547 04/12/2024 12:546020BBerylliummg/Kg - dry 0.0218 36.4 04/17/2024 16:036020BChromiummg/Kg - dry 0.127 11.1 04/17/2024 16:036020BCobaltmg/Kg - dry 0.031 39.0 04/19/2024 17:226020BCoppermg/Kg - dry 0.0887 2.74 04/12/2024 12:546020BLeadmg/Kg - dry 0.0341 23.5 04/19/2024 17:226020BNickelmg/Kg - dry 0.0700 J0.0110 04/12/2024 12:546020BSilvermg/Kg - dry 0.0074 J0.233 04/12/2024 12:546020BThalliummg/Kg - dry 0.0273 72.2 04/12/2024 12:546020BVanadiummg/Kg - dry 0.243 61.7 04/17/2024 16:036020BZincmg/Kg - dry 0.590 7.82 04/29/2024 13:089045DpHs.u. J3640004/17/2024 16:03CALCULATIONChromium, Tri-valent µg/Kg - dry 0.155 J0.216 04/29/2024 16:18SW-7199 Chromium, Hexavalent mg/Kg - dry 0.155 9.34 04/10/2024 12:30SW-DRYWT Moisture % V 90346SS-2 0.848 04/12/2024 12:576020BArsenicmg/Kg - dry 0.0931 118 04/19/2024 17:286020BBariummg/Kg - dry 0.046 J0.261 04/12/2024 12:576020BBerylliummg/Kg - dry 0.0215 24.4 04/17/2024 16:166020BChromiummg/Kg - dry 0.126 26.4 04/17/2024 16:166020BCobaltmg/Kg - dry 0.031 49.5 04/19/2024 17:286020BCoppermg/Kg - dry 0.0877 1.06 04/12/2024 12:576020BLeadmg/Kg - dry 0.0337 24.0 04/19/2024 17:286020BNickelmg/Kg - dry 0.0691 J0.0089 04/12/2024 12:576020BSilvermg/Kg - dry 0.0073 J0.141 04/12/2024 12:576020BThalliummg/Kg - dry 0.0270 72.2 04/12/2024 12:576020BVanadiummg/Kg - dry 0.240 73.1 04/17/2024 16:166020BZincmg/Kg - dry 0.582 J0.006 04/09/2024 17:538260DAcetonemg/Kg - dry 0.002 7.78 04/29/2024 13:089045DpHs.u. 24400 04/17/2024 16:16CALCULATIONChromium, Tri-valent µg/Kg - dry 0.153 0.176 04/29/2024 16:39SW-7199 Chromium, Hexavalent mg/Kg - dry 0.153 8.21 04/10/2024 12:30SW-DRYWT Moisture % V 91715SS-1 Leachate 04/29/2024 15:001312SPLP Extraction Page 4 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-100-0103 Report Limit Project:GFL Vance 24-1 V 91715SS-1 Leachate 04/29/2024 15:001312SPLP Extraction J0.0070 04/30/2024 16:116010DSPLP Chromium mg/L 0.004 J0.0020 04/30/2024 16:116010DSPLP Cobalt mg/L 0.002 V 91716SS-2 Leachate 04/29/2024 15:001312SPLP Extraction Leachate 04/29/2024 15:001312SPLP Extraction J0.0030 04/30/2024 16:176010DSPLP Cobalt mg/L 0.002 Page 5 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77   Client: Smith & Gardner, Inc. CASE NARRATIVE Project: GFL Vance 24-1 Lab Report Number: 24-100-0103 Date: 5/1/2024 Report Comments Revised Report: Revsion One SPLP cobalt, SPLP chromium and pH have been reported for both SS-1 and SS-2. Metals Analyses Method 6020B Sample 90346 (SS-2) Analyte: Arsenic QC Batch No: L744621/L744155 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A post digestion spike was performed and passed quality control acceptance ranges. No matrix interference is suspected. Sample 90346 (SS-2) Analyte: Arsenic QC Batch No: L745466/L744155 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A post digestion spike was performed and passed quality control acceptance ranges. No matrix interference is suspected. Sample 90346 (SS-2) Analyte: Barium QC Batch No: L744621/L744155 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A dilution test was performed and passed quality control acceptance ranges. No matrix interference is suspected. Sample 90346 (SS-2) Analyte: Barium QC Batch No: L745466/L744155 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Sample 90346 (SS-2) Analyte: Barium QC Batch No: L746008/L744155 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A dilution test was performed and passed quality control acceptance ranges. No matrix interference is suspected. Sample 90346 (SS-2) Analyte: Antimony QC Batch No: L744621/L744155 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A post digestion spike was performed and passed quality control acceptance ranges. No matrix interference is suspected. Sample 90346 (SS-2) Page 6 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77   Analyte: Antimony QC Batch No: L745466/L744155 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A post digestion spike was performed and passed quality control acceptance ranges. No matrix interference is suspected. Sample 90346 (SS-2) Analyte: Vanadium QC Batch No: L745466/L744155 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Sample 90346 (SS-2) Analyte: Cobalt QC Batch No: L745466/L744945 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Sample 90346 (SS-2) Analyte: Chromium QC Batch No: L745466/L744945 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Sample 90346 (SS-2) Analyte: Copper QC Batch No: L745466/L744945 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Sample 90346 (SS-2) Analyte: Copper QC Batch No: L746008/L744945 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Sample 90346 (SS-2) Analyte: Nickel QC Batch No: L745466/L744945 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Sample 90346 (SS-2) Analyte: Nickel QC Batch No: L746008/L744945 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Sample 90346 (SS-2) Analyte: Selenium QC Batch No: L745466/L744945 Page 7 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77   The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A post digestion spike was performed and passed quality control acceptance ranges. No matrix interference is suspected. Sample 90346 (SS-2) Analyte: Zinc QC Batch No: L745466/L744945 The matrix spike, matrix spike duplicate and the dilution test were all outside of the quality control acceptance ranges. Matrix interference is suspected. Volatile Organic Compounds - GC/MS Method 8260D SIM Sample 90345 (SS-1) Analyte: 1,4-Dioxane QC Batch No: V45881/V45880 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 90345 (SS-1) Analyte: 4-Bromofluorobenzene QC Batch No: V45881/V45880 Surrogate(s) exhibited a high bias in this project sample where no target analytes were detected. The high recovery(s) had no impact on the data. Batch QC samples (method blank and laboratory control samples) all showed surrogates within QC limits. Sample 90346 (SS-2) Analyte: 4-Bromofluorobenzene QC Batch No: V45881/V45880 Surrogate(s) exhibited a high bias in this project sample where no target analytes were detected. The high recovery(s) had no impact on the data. Batch QC samples (method blank and laboratory control samples) all showed surrogates within QC limits. Page 8 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-1 90345 Matrix: 4/6/2024 10:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF <0.0002 mg/Kg - dry 0.0002 0.0021,4-Dioxane 1 04/09/24 20:15 8260D SIMTBL 36400 J µg/Kg - dry 0.155 0.220Chromium, Tri-valent 1 04/17/24 16:03 CALCULATION 9.34 %Moisture 1 04/10/24 12:30 SW-DRYWTAKF 0.216 J mg/Kg - dry 0.155 0.220Chromium, Hexavalent 1 04/29/24 16:18 SW-7199MKD 7.82 s.u.pH 1 04/29/24 13:08 9045DGOB <0.0339 mg/Kg - dry 0.0339 0.276Antimony 5 04/12/24 12:54 6020BCPW 0.740 mg/Kg - dry 0.0943 0.276Arsenic 5 04/12/24 12:54 6020BCPW 162 mg/Kg - dry 0.047 0.275Barium 5 04/12/24 12:54 6020BCPW 0.547 mg/Kg - dry 0.0218 0.276Beryllium 5 04/12/24 12:54 6020BCPW <0.0286 mg/Kg - dry 0.0286 0.276Cadmium 5 04/12/24 12:54 6020BCPW 36.4 mg/Kg - dry 0.127 0.275Chromium 5 04/17/24 16:03 6020BCPW 11.1 mg/Kg - dry 0.031 0.275Cobalt 5 04/17/24 16:03 6020BCPW 39.0 mg/Kg - dry 0.0887 0.276Copper 5 04/19/24 17:22 6020BCPW 2.74 mg/Kg - dry 0.0341 0.276Lead 5 04/12/24 12:54 6020BCPW 23.5 mg/Kg - dry 0.0700 0.276Nickel 5 04/19/24 17:22 6020BCPW <0.113 mg/Kg - dry 0.113 0.275Selenium 5 04/12/24 12:54 6020BCPW 0.0110 J mg/Kg - dry 0.0074 0.276Silver 5 04/12/24 12:54 6020BCPW 0.233 J mg/Kg - dry 0.0273 0.276 5 04/12/24 12:54 6020BCPW 72.2 mg/Kg - dry 0.243 1.38Vanadium 5 04/12/24 12:54 6020BCPW 61.7 mg/Kg - dry 0.590 2.76Zinc 5 04/17/24 16:03 6020BCPW Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 9 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-1 90345 Matrix: 4/6/2024 10:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):04/09/24 08:00 <0.002 mg/Kg - dry 0.002 0.022Acetone 1 04/09/24 17:26 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.022Acrylonitrile 1 04/09/24 17:26 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005Benzene 1 04/09/24 17:26 V45887TBL <0.0009 mg/Kg - dry 0.0009 0.005Bromochloromethane 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Bromodichloromethane 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Bromoform 1 04/09/24 17:26 V45887TBL <0.002 mg/Kg - dry 0.002 0.011Bromomethane 1 04/09/24 17:26 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.005Carbon Disulfide 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Carbon Tetrachloride 1 04/09/24 17:26 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.005Chlorobenzene 1 04/09/24 17:26 V45887TBL <0.0010 mg/Kg - dry 0.0010 0.005Chlorodibromomethane 1 04/09/24 17:26 V45887TBL <0.0010 mg/Kg - dry 0.0010 0.011Chloroethane 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Chloroform 1 04/09/24 17:26 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.011Chloromethane 1 04/09/24 17:26 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.005Di-Isopropyl Ether (DIPE)1 04/09/24 17:26 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.0111,2-Dibromo-3-Chloropropane 1 04/09/24 17:26 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.0051,2-Dibromoethane 1 04/09/24 17:26 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005Dibromomethane 1 04/09/24 17:26 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.011trans-1,4-Dichloro-2-butene 1 04/09/24 17:26 V45887TBL <0.0003 mg/Kg - dry 0.0003 0.0051,2-Dichlorobenzene 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.011Dichlorodifluoromethane 1 04/09/24 17:26 V45887TBL <0.0009 mg/Kg - dry 0.0009 0.0051,1-Dichloroethane 1 04/09/24 17:26 V45887TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 10 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-1 90345 Matrix: 4/6/2024 10:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):04/09/24 08:00 <0.001 mg/Kg - dry 0.001 0.0051,2-Dichloroethane 1 04/09/24 17:26 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.0051,1-Dichloroethene 1 04/09/24 17:26 V45887TBL <0.0009 mg/Kg - dry 0.0009 0.005cis-1,2-Dichloroethene 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.005trans-1,2-Dichloroethene 1 04/09/24 17:26 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.0051,2-Dichloropropane 1 04/09/24 17:26 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005cis-1,3-Dichloropropene 1 04/09/24 17:26 V45887TBL <0.0009 mg/Kg - dry 0.0009 0.005trans-1,3-Dichloropropene 1 04/09/24 17:26 V45887TBL <0.015 mg/Kg - dry 0.015 0.1101,4-Dioxane 1 04/09/24 17:26 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005Ethylbenzene 1 04/09/24 17:26 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.0222-Hexanone 1 04/09/24 17:26 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.022Methyl Ethyl Ketone (MEK)1 04/09/24 17:26 V45887TBL <0.016 mg/Kg - dry 0.016 0.0224-Methyl-2-Pentanone 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.011Methylene Chloride 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Styrene 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1,2-Tetrachloroethane 1 04/09/24 17:26 V45887TBL <0.0004 mg/Kg - dry 0.0004 0.0051,1,2,2-Tetrachloroethane 1 04/09/24 17:26 V45887TBL <0.0010 mg/Kg - dry 0.0010 0.005 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.005 1 04/09/24 17:26 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.005 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1-Trichloroethane 1 04/09/24 17:26 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.0051,1,2-Trichloroethane 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.005 1 04/09/24 17:26 V45887TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 11 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-1 90345 Matrix: 4/6/2024 10:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):04/09/24 08:00 <0.002 mg/Kg - dry 0.002 0.011 1 04/09/24 17:26 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.0051,2,3-Trichloropropane 1 04/09/24 17:26 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.011Vinyl Acetate 1 04/09/24 17:26 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.011Vinyl Chloride 1 04/09/24 17:26 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005o-Xylene 1 04/09/24 17:26 V45887TBL <0.001 mg/Kg - dry 0.001 0.011m,p-Xylene 1 04/09/24 17:26 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005Xylene (Total)1 04/09/24 17:26 V45887 Surrogate: 4-Bromofluorobenzene Surrogate: Dibromofluoromethane Surrogate: Toluene-d8 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 12 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-2 90346 Matrix: 4/6/2024 10:30 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF <0.0002 mg/Kg - dry 0.0002 0.0021,4-Dioxane 1 04/09/24 20:40 8260D SIMTBL 24400 µg/Kg - dry 0.153 0.217Chromium, Tri-valent 1 04/17/24 16:16 CALCULATION 8.21 %Moisture 1 04/10/24 12:30 SW-DRYWTAKF 0.176 mg/Kg - dry 0.153 0.217Chromium, Hexavalent 1 04/29/24 16:39 SW-7199MKD 7.78 s.u.pH 1 04/29/24 13:08 9045DGOB <0.0335 mg/Kg - dry 0.0335 0.272Antimony 5 04/12/24 12:57 6020BCPW 0.848 mg/Kg - dry 0.0931 0.272Arsenic 5 04/12/24 12:57 6020BCPW 118 mg/Kg - dry 0.046 0.272Barium 5 04/19/24 17:28 6020BCPW 0.261 J mg/Kg - dry 0.0215 0.272Beryllium 5 04/12/24 12:57 6020BCPW <0.0283 mg/Kg - dry 0.0283 0.272Cadmium 5 04/19/24 17:28 6020BCPW 24.4 mg/Kg - dry 0.126 0.272Chromium 5 04/17/24 16:16 6020BCPW 26.4 mg/Kg - dry 0.031 0.272Cobalt 5 04/17/24 16:16 6020BCPW 49.5 mg/Kg - dry 0.0877 0.272Copper 5 04/19/24 17:28 6020BCPW 1.06 mg/Kg - dry 0.0337 0.272Lead 5 04/12/24 12:57 6020BCPW 24.0 mg/Kg - dry 0.0691 0.272Nickel 5 04/19/24 17:28 6020BCPW <0.112 mg/Kg - dry 0.112 0.272Selenium 5 04/12/24 12:57 6020BCPW 0.0089 J mg/Kg - dry 0.0073 0.272Silver 5 04/12/24 12:57 6020BCPW 0.141 J mg/Kg - dry 0.0270 0.272 5 04/12/24 12:57 6020BCPW 72.2 mg/Kg - dry 0.240 1.36Vanadium 5 04/12/24 12:57 6020BCPW 73.1 mg/Kg - dry 0.582 2.72Zinc 5 04/17/24 16:16 6020BCPW Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 13 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-2 90346 Matrix: 4/6/2024 10:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):04/09/24 08:00 0.006 J mg/Kg - dry 0.002 0.021Acetone 1 04/09/24 17:53 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.021Acrylonitrile 1 04/09/24 17:53 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005Benzene 1 04/09/24 17:53 V45887TBL <0.0009 mg/Kg - dry 0.0009 0.005Bromochloromethane 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Bromodichloromethane 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Bromoform 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.010Bromomethane 1 04/09/24 17:53 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.005Carbon Disulfide 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Carbon Tetrachloride 1 04/09/24 17:53 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.005Chlorobenzene 1 04/09/24 17:53 V45887TBL <0.0010 mg/Kg - dry 0.0010 0.005Chlorodibromomethane 1 04/09/24 17:53 V45887TBL <0.0010 mg/Kg - dry 0.0010 0.010Chloroethane 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Chloroform 1 04/09/24 17:53 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.010Chloromethane 1 04/09/24 17:53 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.005Di-Isopropyl Ether (DIPE)1 04/09/24 17:53 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.0101,2-Dibromo-3-Chloropropane 1 04/09/24 17:53 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.0051,2-Dibromoethane 1 04/09/24 17:53 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005Dibromomethane 1 04/09/24 17:53 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.010trans-1,4-Dichloro-2-butene 1 04/09/24 17:53 V45887TBL <0.0003 mg/Kg - dry 0.0003 0.0051,2-Dichlorobenzene 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.010Dichlorodifluoromethane 1 04/09/24 17:53 V45887TBL <0.0009 mg/Kg - dry 0.0009 0.0051,1-Dichloroethane 1 04/09/24 17:53 V45887TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 14 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-2 90346 Matrix: 4/6/2024 10:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):04/09/24 08:00 <0.001 mg/Kg - dry 0.001 0.0051,2-Dichloroethane 1 04/09/24 17:53 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.0051,1-Dichloroethene 1 04/09/24 17:53 V45887TBL <0.0009 mg/Kg - dry 0.0009 0.005cis-1,2-Dichloroethene 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.005trans-1,2-Dichloroethene 1 04/09/24 17:53 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.0051,2-Dichloropropane 1 04/09/24 17:53 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005cis-1,3-Dichloropropene 1 04/09/24 17:53 V45887TBL <0.0009 mg/Kg - dry 0.0009 0.005trans-1,3-Dichloropropene 1 04/09/24 17:53 V45887TBL <0.015 mg/Kg - dry 0.015 0.1081,4-Dioxane 1 04/09/24 17:53 V45887TBL <0.0006 mg/Kg - dry 0.0006 0.005Ethylbenzene 1 04/09/24 17:53 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.0212-Hexanone 1 04/09/24 17:53 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.021Methyl Ethyl Ketone (MEK)1 04/09/24 17:53 V45887TBL <0.016 mg/Kg - dry 0.016 0.0214-Methyl-2-Pentanone 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.010Methylene Chloride 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.005Styrene 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1,2-Tetrachloroethane 1 04/09/24 17:53 V45887TBL <0.0003 mg/Kg - dry 0.0003 0.0051,1,2,2-Tetrachloroethane 1 04/09/24 17:53 V45887TBL <0.0010 mg/Kg - dry 0.0010 0.005 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.005 1 04/09/24 17:53 V45887TBL <0.0007 mg/Kg - dry 0.0007 0.005 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1-Trichloroethane 1 04/09/24 17:53 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.0051,1,2-Trichloroethane 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.005 1 04/09/24 17:53 V45887TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 15 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-2 90346 Matrix: 4/6/2024 10:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):04/09/24 08:00 <0.002 mg/Kg - dry 0.002 0.010 1 04/09/24 17:53 V45887TBL <0.0008 mg/Kg - dry 0.0008 0.0051,2,3-Trichloropropane 1 04/09/24 17:53 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.010Vinyl Acetate 1 04/09/24 17:53 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.010Vinyl Chloride 1 04/09/24 17:53 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.005o-Xylene 1 04/09/24 17:53 V45887TBL <0.001 mg/Kg - dry 0.001 0.010m,p-Xylene 1 04/09/24 17:53 V45887TBL <0.0005 mg/Kg - dry 0.0005 0.005Xylene (Total)1 04/09/24 17:53 V45887 Surrogate: 4-Bromofluorobenzene Surrogate: Dibromofluoromethane Surrogate: Toluene-d8 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 16 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-1 91715 Matrix: 4/6/2024 10:00 TCLP Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 0.0070 J mg/L 0.004 0.0110SPLP Chromium 1 04/30/24 16:11 6010DSML 0.0020 J mg/L 0.002 0.0110SPLP Cobalt 1 04/30/24 16:11 6010DSML LeachateSPLP Extraction 1 04/29/24 15:00 1312TJT Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 17 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 , REPORT OF ANALYSISReport Number : Project Information : NC 27603 24-100-0103 01186 Smith & Gardner, Inc. 14 N. Boylan Avenue Seth C. Rickerts Raleigh Received : 04/09/2024 GFL Vance 24-1 Revised Report Date: 05/01/2024 Original Report Date : 04/23/2024 Sample ID : Lab No : Sampled:SS-2 91716 Matrix: 4/6/2024 10:30 TCLP Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF <0.0040 mg/L 0.004 0.0110SPLP Chromium 1 04/30/24 16:17 6010DSML 0.0030 J mg/L 0.002 0.0110SPLP Cobalt 1 04/30/24 16:17 6010DSML Analytical Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 1312 LeachateSPLP Extraction 1 04/29/24 15:00 L747525TJT Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQLEstimated valueJ Page 18 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Metals Analysis (SPLP) 6010D L747799QC Analytical Batch(es): Analysis Method: Analysis Description: 3015A QC Prep:L747747 Associated Lab Samples: 91715, 91716 LRB-L747747 Matrix: TCLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits 04/30/24 14:180.0110.004<0.004mg/LSPLP Chromium 04/30/24 14:180.0110.002<0.002mg/LSPLP Cobalt LCS-L747747Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1111.111.00mg/LSPLP Chromium 80-120 1061.061.00mg/LSPLP Cobalt 80-120 A 77816-MS-L747747 A 77816-MSD-L747747Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 5.77 98.05.775.685.680.193mg/LSPLP Chromium 98.0 75-125 0.0 20 5.42 95.05.435.685.680.037mg/LSPLP Cobalt 95.0 75-125 0.1 20 A 77816-PDS-L747747Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 04/30/24 16:321032.96mg/LSPLP Chromium 04/30/24 16:3299.02.77mg/LSPLP Cobalt Page 1 of 14Date:05/01/2024 01:20 PM Page 19 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Metals Analyses 6020B L744621,L744858QC Analytical Batch(es): Analysis Method: Analysis Description: 3050B QC Prep:L744155 Associated Lab Samples: 90345, 90346 LRB-L744155 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits 04/12/24 11:360.2500.0308<0.0308mg/KgAntimony 04/12/24 11:360.2500.0855<0.0855mg/KgArsenic 04/12/24 11:360.2500.042<0.042mg/KgBarium 04/12/24 11:360.2500.0198<0.0198mg/KgBeryllium 04/12/24 11:360.2500.0260<0.0260mg/KgCadmium 04/12/24 11:360.2500.0310<0.0310mg/KgLead 04/12/24 11:360.2500.103<0.103mg/KgSelenium 04/12/24 11:360.2500.0067<0.0067mg/KgSilver 04/12/24 11:360.2500.0248<0.0248mg/Kg 04/12/24 11:361.250.221<0.221mg/KgVanadium LCS-L744155Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10210.210.0mg/KgAntimony 80-120 1095.475.00mg/KgArsenic 80-120 10610.610.0mg/KgBarium 80-120 1085.405.00mg/KgBeryllium 80-120 1141.141.00mg/KgCadmium 80-120 1065.305.00mg/KgLead 80-120 45.0*4.4510.0mg/KgSelenium 80-120 1141.141.00mg/KgSilver 80-120 1011.011.00mg/Kg 80-120 11859.250.0mg/KgVanadium 80-120 Page 2 of 14* QC Fail Date:05/01/2024 01:20 PM Page 20 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Metals Analyses 6020B L744621,L744858QC Analytical Batch(es): Analysis Method: Analysis Description: 3050B QC Prep:L744155 V 90346-MS-L744155 V 90346-MSD-L744155Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.708 15.0*0.7484.994.83<0.0308mg/KgAntimony 15.0*75-125 5.4 80 2.41 68.0*2.382.492.410.778mg/KgArsenic 64.0*75-125 1.2 80 136 21.0*1414.994.83135mg/KgBarium 120 75-125 3.6 80 2.50 94.02.532.492.410.240mg/KgBeryllium 92.0 75-125 1.1 80 0.507 99.00.5230.4990.4830.0294mg/KgCadmium 99.0 75-125 3.1 80 3.18 92.03.302.492.410.969mg/KgLead 94.0 75-125 3.7 80 3.15 63.0*3.264.994.830.105mg/KgSelenium 63.0*75-125 3.4 80 0.488 99.00.4980.4990.4830.0082mg/KgSilver 98.0 75-125 2.0 80 0.504 78.00.5260.4990.4830.129mg/Kg 80.0 75-125 4.2 80 90.2 99.088.724.924.166.3mg/KgVanadium 90.0 75-125 1.6 80 V 90346-PDS-L744155Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 04/12/24 13:0688.02.12mg/KgAntimony 04/12/24 13:0692.01.17mg/KgArsenic 04/12/24 13:0610015.9mg/KgBarium 04/12/24 13:0696.01.17mg/KgBeryllium 04/12/24 13:061040.254mg/KgCadmium 04/12/24 13:0698.01.28mg/KgLead 04/15/24 18:3191.02.19mg/KgSelenium 04/12/24 13:061020.245mg/KgSilver 04/12/24 13:0690.00.228mg/Kg 04/12/24 13:0699.018.5mg/KgVanadium Page 3 of 14* QC Fail Date:05/01/2024 01:20 PM Page 21 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Metals Analyses 6020B L745466,L746008QC Analytical Batch(es): Analysis Method: Analysis Description: 3050B QC Prep:L744945 Associated Lab Samples: 90345, 90346 LRB-L744945 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits 04/17/24 14:160.2500.116<0.116mg/KgChromium 04/17/24 14:160.2500.028<0.028mg/KgCobalt 04/17/24 14:160.2500.0805<0.0805mg/KgCopper 04/17/24 14:160.2500.0635<0.0635mg/KgNickel 04/17/24 14:162.500.535<0.535mg/KgZinc LCS-L744945Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1075.355.00mg/KgChromium 80-120 97.04.855.00mg/KgCobalt 80-120 95.02.372.50mg/KgCopper 80-120 96.02.412.50mg/KgNickel 80-120 10125.225.0mg/KgZinc 80-120 V 90346-MS-L744945 V 90346-MSD-L744945Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 21.7 0.0*22.84.784.7522.4mg/KgChromium 8.0*75-125 4.9 80 19.8 0.0*23.04.784.7524.2mg/KgCobalt 0.0*75-125 14.9 80 46.7 55.0*44.82.392.3745.4mg/KgCopper 0.0*75-125 4.1 80 24.3 97.023.22.392.3722.0mg/KgNickel 50.0*75-125 4.6 80 69.8 11.0*72.623.923.767.1mg/KgZinc 23.0*75-125 3.9 80 Page 4 of 14* QC Fail Date:05/01/2024 01:20 PM Page 22 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Metals Analyses 6020B L745466,L746008QC Analytical Batch(es): Analysis Method: Analysis Description: 3050B QC Prep:L744945 V 90346-PDS-L744945Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 04/17/24 16:3287.04.11mg/KgChromium 04/17/24 16:3277.03.77mg/KgCobalt 04/19/24 17:5285.04.92mg/KgCopper 04/19/24 17:5288.03.02mg/KgNickel 04/17/24 16:3286.016.3mg/KgZinc Page 5 of 14Date:05/01/2024 01:20 PM Page 23 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D SIM V45881QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 LOW QC Prep:V45880 Associated Lab Samples: 90345, 90346 LRB-V45880 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/09/24 19:500.0020.0001<0.0001mg/Kg1,4-Dioxane 04/09/24 19:504-Bromofluorobenzene (S)123 70-130 LCS-V45880Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 88.20.0440.050mg/Kg1,4-Dioxane 70-130 92.24-Bromofluorobenzene (S)70-130 V 90345-MS-V45880 V 90345-MSD-V45880Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.032 65.8*0.0330.0500.050<0.0001mg/Kg1,4-Dioxane 67.0*70-130 1.8 20 1224-Bromofluorobenzene (S)124 70-130 Page 6 of 14* QC Fail Date:05/01/2024 01:20 PM Page 24 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V45887QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V45886 Associated Lab Samples: 90345, 90346 LRB-V45886 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/09/24 14:520.0200.002<0.002mg/KgAcetone 04/09/24 14:520.0200.0008<0.0008mg/KgAcrylonitrile 04/09/24 14:520.0050.0006<0.0006mg/KgBenzene 04/09/24 14:520.0050.0008<0.0008mg/KgBromochloromethane 04/09/24 14:520.0050.001<0.001mg/KgBromodichloromethane 04/09/24 14:520.0050.001<0.001mg/KgBromoform 04/09/24 14:520.0100.001<0.001mg/KgBromomethane 04/09/24 14:520.0050.0006<0.0006mg/KgCarbon Disulfide 04/09/24 14:520.0050.001<0.001mg/KgCarbon Tetrachloride 04/09/24 14:520.0050.0007<0.0007mg/KgChlorobenzene 04/09/24 14:520.0050.0009<0.0009mg/KgChlorodibromomethane 04/09/24 14:520.0100.0009<0.0009mg/KgChloroethane 04/09/24 14:520.0050.001<0.001mg/KgChloroform 04/09/24 14:520.0100.0006<0.0006mg/KgChloromethane 04/09/24 14:520.0050.0007<0.0007mg/KgDi-Isopropyl Ether (DIPE) 04/09/24 14:520.0100.0004<0.0004mg/Kg1,2-Dibromo-3-Chloropropane 04/09/24 14:520.0050.0006<0.0006mg/Kg1,2-Dibromoethane 04/09/24 14:520.0050.0006<0.0006mg/KgDibromomethane 04/09/24 14:520.0100.0007<0.0007mg/Kgtrans-1,4-Dichloro-2-butene 04/09/24 14:520.0050.0003<0.0003mg/Kg1,2-Dichlorobenzene 04/09/24 14:520.0100.001<0.001mg/KgDichlorodifluoromethane 04/09/24 14:520.0050.0008<0.0008mg/Kg1,1-Dichloroethane 04/09/24 14:520.0050.001<0.001mg/Kg1,2-Dichloroethane 04/09/24 14:520.0050.0007<0.0007mg/Kg1,1-Dichloroethene 04/09/24 14:520.0050.0008<0.0008mg/Kgcis-1,2-Dichloroethene 04/09/24 14:520.0050.001<0.001mg/Kgtrans-1,2-Dichloroethene 04/09/24 14:520.0050.0004<0.0004mg/Kg1,2-Dichloropropane Page 7 of 14Date:05/01/2024 01:20 PM Page 25 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V45887QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V45886 Associated Lab Samples: 90345, 90346 LRB-V45886 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/09/24 14:520.0050.0005<0.0005mg/Kgcis-1,3-Dichloropropene 04/09/24 14:520.0050.0008<0.0008mg/Kgtrans-1,3-Dichloropropene 04/09/24 14:520.1000.014<0.014mg/Kg1,4-Dioxane 04/09/24 14:520.0050.0006<0.0006mg/KgEthylbenzene 04/09/24 14:520.0200.0006<0.0006mg/Kg2-Hexanone 04/09/24 14:520.0200.0007<0.0007mg/KgMethyl Ethyl Ketone (MEK) 04/09/24 14:520.0200.015<0.015mg/Kg4-Methyl-2-Pentanone 04/09/24 14:520.0100.001<0.001mg/KgMethylene Chloride 04/09/24 14:520.0050.001<0.001mg/KgStyrene 04/09/24 14:520.0050.001<0.001mg/Kg1,1,1,2-Tetrachloroethane 04/09/24 14:520.0050.0003<0.0003mg/Kg1,1,2,2-Tetrachloroethane 04/09/24 14:520.0050.0009<0.0009mg/Kg 04/09/24 14:520.0050.0009<0.0009mg/Kg 04/09/24 14:520.0050.0007<0.0007mg/Kg 04/09/24 14:520.0050.001<0.001mg/Kg1,1,1-Trichloroethane 04/09/24 14:520.0050.0005<0.0005mg/Kg1,1,2-Trichloroethane 04/09/24 14:520.0050.0009<0.0009mg/Kg 04/09/24 14:520.0100.002<0.002mg/Kg 04/09/24 14:520.0050.0007<0.0007mg/Kg1,2,3-Trichloropropane 04/09/24 14:520.0100.0005<0.0005mg/KgVinyl Acetate 04/09/24 14:520.0100.0005<0.0005mg/KgVinyl Chloride 04/09/24 14:520.0050.0005<0.0005mg/Kgo-Xylene 04/09/24 14:520.0100.001<0.001mg/Kgm,p-Xylene 04/09/24 14:524-Bromofluorobenzene (S)101 70-130 04/09/24 14:52Dibromofluoromethane (S)101 84-123 04/09/24 14:52 90.2 76-129 Page 8 of 14Date:05/01/2024 01:20 PM Page 26 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V45887QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V45886 LCS-V45886 LCSD-V45886Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.111 1111210.1210.100mg/KgAcetone 29-198 8.6 20 0.093 93.394.90.0940.100mg/KgAcrylonitrile 65-134 1.7 20 0.042 85.487.80.0430.050mg/KgBenzene 74-127 2.7 20 0.043 87.291.80.0450.050mg/KgBromochloromethane 72-134 5.1 20 0.044 89.490.00.0450.050mg/KgBromodichloromethane 75-122 0.6 20 0.041 83.486.80.0430.050mg/KgBromoform 66-135 3.9 20 0.049 98.294.60.0470.050mg/KgBromomethane 20-180 3.7 20 0.042 85.289.40.0440.050mg/KgCarbon Disulfide 61-129 4.8 20 0.042 84.890.40.0450.050mg/KgCarbon Tetrachloride 64-143 6.3 20 0.039 79.081.40.0400.050mg/KgChlorobenzene 74-118 2.9 20 0.040 80.883.80.0410.050mg/KgChlorodibromomethane 73-122 3.6 20 0.048 96.699.60.0490.050mg/KgChloroethane 33-149 3.0 20 0.043 86.489.00.0440.050mg/KgChloroform 73-127 2.9 20 0.036 73.275.20.0370.050mg/KgChloromethane 45-143 2.6 20 0.042 85.285.60.0420.050mg/KgDi-Isopropyl Ether (DIPE)59-159 0.4 20 0.040 81.085.20.0420.050mg/Kg1,2-Dibromo-3-Chloropropane 55-157 5.0 20 0.042 85.887.40.0430.050mg/Kg1,2-Dibromoethane 70-132 1.8 20 0.046 92.293.80.0460.050mg/KgDibromomethane 74-133 1.7 20 0.035 70.873.40.0360.050mg/Kgtrans-1,4-Dichloro-2-butene 70-130 3.6 20 0.037 75.276.00.0380.050mg/Kg1,2-Dichlorobenzene 72-123 1.0 20 0.043 86.893.00.0460.050mg/KgDichlorodifluoromethane 26-146 6.8 20 0.041 82.886.20.0430.050mg/Kg1,1-Dichloroethane 74-127 4.0 20 0.045 90.093.80.0460.050mg/Kg1,2-Dichloroethane 68-128 4.1 20 0.040 81.486.00.0430.050mg/Kg1,1-Dichloroethene 67-149 5.4 20 0.042 85.687.00.0430.050mg/Kgcis-1,2-Dichloroethene 76-134 1.6 20 0.042 84.086.80.0430.050mg/Kgtrans-1,2-Dichloroethene 73-132 3.2 20 Page 9 of 14Date:05/01/2024 01:20 PM Page 27 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V45887QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V45886 LCS-V45886 LCSD-V45886Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.043 86.088.40.0440.050mg/Kg1,2-Dichloropropane 73-130 2.7 20 0.045 91.091.80.0450.050mg/Kgcis-1,3-Dichloropropene 71-125 0.8 20 0.048 96.298.20.0490.050mg/Kgtrans-1,3-Dichloropropene 68-123 2.0 20 0.539 1081090.5440.500mg/Kg1,4-Dioxane 70-130 0.9 20 0.039 78.682.00.0410.050mg/KgEthylbenzene 74-128 4.2 20 0.045 90.099.80.0490.050mg/Kg2-Hexanone 61-157 10.3 20 0.052 1051110.0550.050mg/KgMethyl Ethyl Ketone (MEK)63-149 6.2 20 0.046 93.499.80.0490.050mg/Kg4-Methyl-2-Pentanone 57-162 6.6 20 0.039 78.280.00.0400.050mg/KgMethylene Chloride 74-129 2.2 20 0.042 85.487.80.0430.050mg/KgStyrene 77-121 2.7 20 0.039 79.881.60.0400.050mg/Kg1,1,1,2-Tetrachloroethane 72-115 2.2 20 0.039 78.479.40.0390.050mg/Kg1,1,2,2-Tetrachloroethane 56-126 1.2 20 0.043 87.291.60.0450.050mg/Kg 68-130 4.9 20 0.046 93.297.20.0480.050mg/Kg 70-130 4.2 20 0.043 86.088.00.0440.050mg/Kg 71-129 2.2 20 0.042 85.087.80.0430.050mg/Kg1,1,1-Trichloroethane 67-131 3.2 20 0.040 81.083.40.0410.050mg/Kg1,1,2-Trichloroethane 70-133 2.9 20 0.042 84.887.80.0430.050mg/Kg 75-133 3.4 20 0.044 88.695.20.0470.050mg/Kg 44-146 7.1 20 0.040 81.281.80.0400.050mg/Kg1,2,3-Trichloropropane 60-137 0.7 20 0.049 99.01080.0540.050mg/KgVinyl Acetate 60-140 8.6 20 0.040 81.086.40.0430.050mg/KgVinyl Chloride 48-147 6.4 20 0.040 81.483.60.0410.050mg/Kgo-Xylene 74-126 2.6 20 0.080 80.583.40.0830.100mg/Kgm,p-Xylene 75-124 3.5 20 97.095.84-Bromofluorobenzene (S)70-130 100100Dibromofluoromethane (S)84-123 Page 10 of 14Date:05/01/2024 01:20 PM Page 28 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V45887QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V45886 LCS-V45886 LCSD-V45886Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 90.490.6 76-129 Page 11 of 14Date:05/01/2024 01:20 PM Page 29 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 pH in Solids 9045D V46604QC Analytical Batch: Analysis Method: Analysis Description: LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1006.876.86s.u.pH V 90345-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 04/29/24 13:080.27.807.82s.u.pH Page 12 of 14Date:05/01/2024 01:20 PM Page 30 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 QC Prep Batch Method: Hexavalent Chromium by Ion Chromatography SW-7199 L747386QC Analytical Batch(es): Analysis Method: Analysis Description: SW-3060A QC Prep:L746885 Associated Lab Samples: 90345, 90346 LRB-L746885 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits 04/29/24 15:560.2000.141<0.141mg/KgChromium, Hexavalent LCS-L746885Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 92.03.674.00mg/KgChromium, Hexavalent 80-120 V 90345-DUP-L746885Duplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 04/29/24 16:290.0<0.200< 0.200mg/KgChromium, Hexavalent V 90345-MS-L746885Matrix Spike MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits 35.8 91.039.2< 1.38mg/KgChromium, Hexavalent 75-125 Page 13 of 14Date:05/01/2024 01:20 PM Page 31 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Quality Control Data 24-100-0103Report No: Project Description: Client ID:Smith & Gardner, Inc. GFL Vance 24-1 Dry Weight Determination SW-DRYWT V45870QC Analytical Batch: Analysis Method: Analysis Description: V 90333-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 04/10/24 12:302.014.614.3%Moisture V 90334-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 04/10/24 12:301.314.714.9%Moisture Page 14 of 14Date:05/01/2024 01:20 PM Page 32 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:24-100-0103 Smith & Gardner, Inc. 01186 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 3.2C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs ü Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)ü High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angela D Overcash Date & Time:04/09/2024 14:32:17 Special precautions or instructions included? Comments: Page 33 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77 Page 34 of 34 DocuSign Envelope ID: 5CD0B724-5692-4E64-838C-24FC063D6C77