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DDW-2025-007440
June 26, 2025 Dear John Steffan: Please find enclosed the analytical results for the 10 sample(s) the laboratory received on 6/14/25 11:30 am and logged in under work order IF03326. All testing is performed according to our current TNI accreditations unless otherwise noted. This report cannot be reproduced, except in full, without the written permission of Pace Analytical Services, LLC. If you have any questions regarding your report, please contact your project manager. Quality and timely data is of the utmost importance to us. Pace Analytical Services appreciates the opportunity to provide you with analytical expertise . We are always trying to improve our customer service and we welcome you to contact the General Manager, Lisa Grant, with any feedback you have about your experience with our laboratory at 309-683-1764 or lisa.grant@pacelabs.com. Sincerely, Janet Clutters Project Manager (309) 692-9688 x1743 janet.clutters@pacelabs.com John Steffan Utah Department of Environmental Quality 195 N 1950 W Salt Lake City, UT 84116 UTAH27073RE: Peoria, IL 61615 Pace Analytical Services, LLC 2231 W. Altorfer Drive (800)752-6651 www.pacelabs.comCustomer #: 72-106174 Page 1 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 Case Narrative SAMPLES RECEIVED WITHIN REGULATORY HOLD TIME AND WITHIN TEMPERATURE COMPLIANCE OF 0.1-10 DEGREES & ON ICE APPROPRIATE BOTTLES RECEIVED AND SUFFICIENT SAMPLE VOLUME COC PRESENT, COMPLETED & LEGIBLE RESULTS REPORTED HEREIN CONFORM TO THE APPICABLE TNI/NELAC STANDARDS AND THE LABORATORY'S QUALITY MANUAL UNLESS OTHER WISE NOTED IN THE BODY OF THE REPORT. www.pacelabs.comCustomer #: 72-106174 Page 2 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 www.pacelabs.comCustomer #: 72-106174 Page 3 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-01 Name: Sampled: Received: 06/14/25 11:30 06/11/25 09:30 TP001-ARSENIC AND MANGANESE WTP Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Semivolatile Organics - PFAS - PIA < 1.0 ng/L EPA 533PFBA06/20/25 13:43 PSBU2.011.0 < 0.4 ng/L EPA 533PFMPA06/20/25 13:43 PSBU2.010.4 < 0.5 ng/L EPA 533PFPeA06/20/25 13:43 PSBU2.010.5 < 0.5 ng/L EPA 533PFBS06/20/25 13:43 PSBU2.010.5 < 0.4 ng/L EPA 533PFMBA06/20/25 13:43 PSBU2.010.4 < 0.5 ng/L EPA 533PFEESA06/20/25 13:43 PSBU2.010.5 < 0.4 ng/L EPA 533HFPO-DA 06/20/25 13:43 PSBU2.010.4 < 0.5 ng/L EPA 533NFDHA06/20/25 13:43 PSBU2.010.5 < 0.4 ng/L EPA 5334:2 FTS 06/20/25 13:43 PSBU2.010.4 < 0.4 ng/L EPA 533PFHxS06/20/25 13:43 PSBU2.010.4 < 0.6 ng/L EPA 533PFHpA06/20/25 13:43 PSBU2.010.6 < 1.0 ng/L EPA 533PFHxA06/20/25 13:43 PSBU2.011.0 < 0.5 ng/L EPA 533ADONA06/20/25 13:43 PSBU2.010.5 < 0.6 ng/L EPA 533PFPeS06/20/25 13:43 PSBU2.010.6 < 0.5 ng/L EPA 5336:2 FTS 06/20/25 13:43 PSBU2.010.5 < 0.7 ng/L EPA 533PFOA06/20/25 13:43 PSBU2.010.7 < 0.6 ng/L EPA 533PFHpS06/20/25 13:43 PSBU2.010.6 < 0.5 ng/L EPA 533PFOS06/20/25 13:43 PSBU2.010.5 < 0.5 ng/L EPA 533PFNA06/20/25 13:43 PSBU2.010.5 < 0.7 ng/L EPA 5339Cl-PF3ONS 06/20/25 13:43 PSBU2.010.7 < 0.5 ng/L EPA 5338:2 FTS 06/20/25 13:43 PSBU2.010.5 < 0.5 ng/L EPA 533PFDA06/20/25 13:43 PSBU2.010.5 < 0.5 ng/L EPA 533PFUnA06/20/25 13:43 PSBU2.010.5 < 0.6 ng/L EPA 53311Cl-PF3OUdS 06/20/25 13:43 PSBU2.010.6 < 0.6 ng/L EPA 533PFDoA06/20/25 13:43 PSBU2.010.6 Surrogate: 13C4-PFBA-SURR 93 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C5-PFPeA-SURR 98 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C3-PFBS-SURR 100 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C2-4:2FTS-SURR 93 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C5-PFHxA-SURR 97 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C3-HFPOA-DA-SURR 97 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C4-PFHpA-SURR 96 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C3-PFHxS-SURR 103 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C2-6:2FTS-SURR 96 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C8-PFOA-SURR 96 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C9-PFNA-SURR 96 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C8-PFOS-SURR 98 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C2-8:2FTS-SURR 103 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C6-PFDA-SURR 95 %50-200 06/20/25 13:43 PSB EPA 533 Surrogate: 13C7-PFUnA-SURR 96 %50-200 06/20/25 13:43 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 4 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-01 Name: Sampled: Received: 06/14/25 11:30 06/11/25 09:30 TP001-ARSENIC AND MANGANESE WTP Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Surrogate: 13C2-PFDoA-SURR 103 %50-200 06/20/25 13:43 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 5 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-03 Name: Sampled: Received: 06/14/25 11:30 06/11/25 09:44 TP020-ARSENIC BLEND FOR SHRP AND SH WELLS Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Semivolatile Organics - PFAS - PIA < 1.0 ng/L EPA 533PFBA06/20/25 14:31 PSBU2.011.0 < 0.4 ng/L EPA 533PFMPA06/20/25 14:31 PSBU2.010.4 < 0.5 ng/L EPA 533PFPeA06/20/25 14:31 PSBU2.010.5 < 0.5 ng/L EPA 533PFBS06/20/25 14:31 PSBU2.010.5 < 0.4 ng/L EPA 533PFMBA06/20/25 14:31 PSBU2.010.4 < 0.5 ng/L EPA 533PFEESA06/20/25 14:31 PSBU2.010.5 < 0.4 ng/L EPA 533HFPO-DA 06/20/25 14:31 PSBU2.010.4 < 0.5 ng/L EPA 533NFDHA06/20/25 14:31 PSBU2.010.5 < 0.4 ng/L EPA 5334:2 FTS 06/20/25 14:31 PSBU2.010.4 < 0.4 ng/L EPA 533PFHxS06/20/25 14:31 PSBU2.010.4 < 0.6 ng/L EPA 533PFHpA06/20/25 14:31 PSBU2.010.6 < 1.0 ng/L EPA 533PFHxA06/20/25 14:31 PSBU2.011.0 < 0.5 ng/L EPA 533ADONA06/20/25 14:31 PSBU2.010.5 < 0.6 ng/L EPA 533PFPeS06/20/25 14:31 PSBU2.010.6 < 0.5 ng/L EPA 5336:2 FTS 06/20/25 14:31 PSBU2.010.5 < 0.7 ng/L EPA 533PFOA06/20/25 14:31 PSBU2.010.7 < 0.6 ng/L EPA 533PFHpS06/20/25 14:31 PSBU2.010.6 < 0.5 ng/L EPA 533PFOS06/20/25 14:31 PSBU2.010.5 < 0.5 ng/L EPA 533PFNA06/20/25 14:31 PSBU2.010.5 < 0.7 ng/L EPA 5339Cl-PF3ONS 06/20/25 14:31 PSBU2.010.7 < 0.5 ng/L EPA 5338:2 FTS 06/20/25 14:31 PSBU2.010.5 < 0.5 ng/L EPA 533PFDA06/20/25 14:31 PSBU2.010.5 < 0.5 ng/L EPA 533PFUnA06/20/25 14:31 PSBU2.010.5 < 0.6 ng/L EPA 53311Cl-PF3OUdS 06/20/25 14:31 PSBU2.010.6 < 0.6 ng/L EPA 533PFDoA06/20/25 14:31 PSBU2.010.6 Surrogate: 13C4-PFBA-SURR 92 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C5-PFPeA-SURR 97 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C3-PFBS-SURR 97 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C2-4:2FTS-SURR 91 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C5-PFHxA-SURR 96 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C3-HFPOA-DA-SURR 96 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C4-PFHpA-SURR 94 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C3-PFHxS-SURR 99 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C2-6:2FTS-SURR 93 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C8-PFOA-SURR 94 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C9-PFNA-SURR 95 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C8-PFOS-SURR 95 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C2-8:2FTS-SURR 98 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C6-PFDA-SURR 91 %50-200 06/20/25 14:31 PSB EPA 533 Surrogate: 13C7-PFUnA-SURR 88 %50-200 06/20/25 14:31 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 6 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-03 Name: Sampled: Received: 06/14/25 11:30 06/11/25 09:44 TP020-ARSENIC BLEND FOR SHRP AND SH WELLS Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Surrogate: 13C2-PFDoA-SURR 95 %50-200 06/20/25 14:31 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 7 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-05 Name: Sampled: Received: 06/14/25 11:30 06/11/25 11:18 TP021-ARSENIC BLEND POINT AT ST004 Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Semivolatile Organics - PFAS - PIA 1.0 ng/L EPA 533PFBA06/20/25 15:18 PSBJ1.910.9 < 0.4 ng/L EPA 533PFMPA06/20/25 15:18 PSBU1.910.4 < 0.5 ng/L EPA 533PFPeA06/20/25 15:18 PSBU1.910.5 < 0.5 ng/L EPA 533PFBS06/20/25 15:18 PSBU1.910.5 < 0.4 ng/L EPA 533PFMBA06/20/25 15:18 PSBU1.910.4 < 0.5 ng/L EPA 533PFEESA06/20/25 15:18 PSBU1.910.5 < 0.3 ng/L EPA 533HFPO-DA 06/20/25 15:18 PSBU1.910.3 < 0.4 ng/L EPA 533NFDHA06/20/25 15:18 PSBU1.910.4 < 0.4 ng/L EPA 5334:2 FTS 06/20/25 15:18 PSBU1.910.4 < 0.4 ng/L EPA 533PFHxS06/20/25 15:18 PSBU1.910.4 < 0.5 ng/L EPA 533PFHpA06/20/25 15:18 PSBU1.910.5 < 1.0 ng/L EPA 533PFHxA06/20/25 15:18 PSBU1.911.0 < 0.5 ng/L EPA 533ADONA06/20/25 15:18 PSBU1.910.5 < 0.5 ng/L EPA 533PFPeS06/20/25 15:18 PSBU1.910.5 < 0.5 ng/L EPA 5336:2 FTS 06/20/25 15:18 PSBU1.910.5 < 0.7 ng/L EPA 533PFOA06/20/25 15:18 PSBU1.910.7 < 0.6 ng/L EPA 533PFHpS06/20/25 15:18 PSBU1.910.6 < 0.5 ng/L EPA 533PFOS06/20/25 15:18 PSBU1.910.5 < 0.5 ng/L EPA 533PFNA06/20/25 15:18 PSBU1.910.5 < 0.6 ng/L EPA 5339Cl-PF3ONS 06/20/25 15:18 PSBU1.910.6 < 0.5 ng/L EPA 5338:2 FTS 06/20/25 15:18 PSBU1.910.5 < 0.4 ng/L EPA 533PFDA06/20/25 15:18 PSBU1.910.4 < 0.5 ng/L EPA 533PFUnA06/20/25 15:18 PSBU1.910.5 < 0.5 ng/L EPA 53311Cl-PF3OUdS 06/20/25 15:18 PSBU1.910.5 < 0.5 ng/L EPA 533PFDoA06/20/25 15:18 PSBU1.910.5 Surrogate: 13C4-PFBA-SURR 93 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C5-PFPeA-SURR 102 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C3-PFBS-SURR 100 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C2-4:2FTS-SURR 94 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C5-PFHxA-SURR 95 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C3-HFPOA-DA-SURR 97 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C4-PFHpA-SURR 93 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C3-PFHxS-SURR 100 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C2-6:2FTS-SURR 97 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C8-PFOA-SURR 94 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C9-PFNA-SURR 94 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C8-PFOS-SURR 98 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C2-8:2FTS-SURR 99 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C6-PFDA-SURR 91 %50-200 06/20/25 15:18 PSB EPA 533 Surrogate: 13C7-PFUnA-SURR 89 %50-200 06/20/25 15:18 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 8 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-05 Name: Sampled: Received: 06/14/25 11:30 06/11/25 11:18 TP021-ARSENIC BLEND POINT AT ST004 Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Surrogate: 13C2-PFDoA-SURR 100 %50-200 06/20/25 15:18 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 9 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-07 Name: Sampled: Received: 06/14/25 11:30 06/11/25 08:15 TP022-ARSENIC BLEND AT HURRICANE VALLEY WS Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Semivolatile Organics - PFAS - PIA < 1.0 ng/L EPA 533PFBA06/20/25 16:05 PSBU2.011.0 < 0.4 ng/L EPA 533PFMPA06/20/25 16:05 PSBU2.010.4 < 0.5 ng/L EPA 533PFPeA06/20/25 16:05 PSBU2.010.5 < 0.5 ng/L EPA 533PFBS06/20/25 16:05 PSBU2.010.5 < 0.4 ng/L EPA 533PFMBA06/20/25 16:05 PSBU2.010.4 < 0.5 ng/L EPA 533PFEESA06/20/25 16:05 PSBU2.010.5 < 0.4 ng/L EPA 533HFPO-DA 06/20/25 16:05 PSBU2.010.4 < 0.5 ng/L EPA 533NFDHA06/20/25 16:05 PSBU2.010.5 < 0.4 ng/L EPA 5334:2 FTS 06/20/25 16:05 PSBU2.010.4 < 0.4 ng/L EPA 533PFHxS06/20/25 16:05 PSBU2.010.4 < 0.6 ng/L EPA 533PFHpA06/20/25 16:05 PSBU2.010.6 < 1.0 ng/L EPA 533PFHxA06/20/25 16:05 PSBU2.011.0 < 0.5 ng/L EPA 533ADONA06/20/25 16:05 PSBU2.010.5 < 0.6 ng/L EPA 533PFPeS06/20/25 16:05 PSBU2.010.6 < 0.5 ng/L EPA 5336:2 FTS 06/20/25 16:05 PSBU2.010.5 < 0.7 ng/L EPA 533PFOA06/20/25 16:05 PSBU2.010.7 < 0.6 ng/L EPA 533PFHpS06/20/25 16:05 PSBU2.010.6 < 0.5 ng/L EPA 533PFOS06/20/25 16:05 PSBU2.010.5 < 0.5 ng/L EPA 533PFNA06/20/25 16:05 PSBU2.010.5 < 0.7 ng/L EPA 5339Cl-PF3ONS 06/20/25 16:05 PSBU2.010.7 < 0.5 ng/L EPA 5338:2 FTS 06/20/25 16:05 PSBU2.010.5 < 0.5 ng/L EPA 533PFDA06/20/25 16:05 PSBU2.010.5 < 0.5 ng/L EPA 533PFUnA06/20/25 16:05 PSBU2.010.5 < 0.6 ng/L EPA 53311Cl-PF3OUdS 06/20/25 16:05 PSBU2.010.6 < 0.6 ng/L EPA 533PFDoA06/20/25 16:05 PSBU2.010.6 Surrogate: 13C4-PFBA-SURR 91 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C5-PFPeA-SURR 91 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C3-PFBS-SURR 95 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C2-4:2FTS-SURR 88 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C5-PFHxA-SURR 92 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C3-HFPOA-DA-SURR 94 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C4-PFHpA-SURR 91 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C3-PFHxS-SURR 95 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C2-6:2FTS-SURR 88 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C8-PFOA-SURR 92 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C9-PFNA-SURR 93 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C8-PFOS-SURR 97 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C2-8:2FTS-SURR 94 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C6-PFDA-SURR 81 %50-200 06/20/25 16:05 PSB EPA 533 Surrogate: 13C7-PFUnA-SURR 80 %50-200 06/20/25 16:05 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 10 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-07 Name: Sampled: Received: 06/14/25 11:30 06/11/25 08:15 TP022-ARSENIC BLEND AT HURRICANE VALLEY WS Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Surrogate: 13C2-PFDoA-SURR 93 %50-200 06/20/25 16:05 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 11 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-09 Name: Sampled: Received: 06/14/25 11:30 06/11/25 10:02 TP023-GROUP WELLS SAMPLING STATION SS140 Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Semivolatile Organics - PFAS - PIA < 1.1 ng/L EPA 533PFBA06/20/25 16:52 PSBU2.111.1 < 0.5 ng/L EPA 533PFMPA06/20/25 16:52 PSBU2.110.5 < 0.5 ng/L EPA 533PFPeA06/20/25 16:52 PSBU2.110.5 < 0.5 ng/L EPA 533PFBS06/20/25 16:52 PSBU2.110.5 < 0.4 ng/L EPA 533PFMBA06/20/25 16:52 PSBU2.110.4 < 0.6 ng/L EPA 533PFEESA06/20/25 16:52 PSBU2.110.6 < 0.4 ng/L EPA 533HFPO-DA 06/20/25 16:52 PSBU2.110.4 < 0.5 ng/L EPA 533NFDHA06/20/25 16:52 PSBU2.110.5 < 0.4 ng/L EPA 5334:2 FTS 06/20/25 16:52 PSBU2.110.4 < 0.4 ng/L EPA 533PFHxS06/20/25 16:52 PSBU2.110.4 < 0.6 ng/L EPA 533PFHpA06/20/25 16:52 PSBU2.110.6 < 1.1 ng/L EPA 533PFHxA06/20/25 16:52 PSBU2.111.1 < 0.6 ng/L EPA 533ADONA06/20/25 16:52 PSBU2.110.6 < 0.6 ng/L EPA 533PFPeS06/20/25 16:52 PSBU2.110.6 < 0.5 ng/L EPA 5336:2 FTS 06/20/25 16:52 PSBU2.110.5 < 0.8 ng/L EPA 533PFOA06/20/25 16:52 PSBU2.110.8 < 0.6 ng/L EPA 533PFHpS06/20/25 16:52 PSBU2.110.6 < 0.5 ng/L EPA 533PFOS06/20/25 16:52 PSBU2.110.5 < 0.6 ng/L EPA 533PFNA06/20/25 16:52 PSBU2.110.6 < 0.7 ng/L EPA 5339Cl-PF3ONS 06/20/25 16:52 PSBU2.110.7 < 0.5 ng/L EPA 5338:2 FTS 06/20/25 16:52 PSBU2.110.5 < 0.5 ng/L EPA 533PFDA06/20/25 16:52 PSBU2.110.5 < 0.5 ng/L EPA 533PFUnA06/20/25 16:52 PSBU2.110.5 < 0.6 ng/L EPA 53311Cl-PF3OUdS 06/20/25 16:52 PSBU2.110.6 < 0.6 ng/L EPA 533PFDoA06/20/25 16:52 PSBU2.110.6 Surrogate: 13C4-PFBA-SURR 93 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C5-PFPeA-SURR 125 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C3-PFBS-SURR 98 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C2-4:2FTS-SURR 93 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C5-PFHxA-SURR 97 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C3-HFPOA-DA-SURR 97 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C4-PFHpA-SURR 93 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C3-PFHxS-SURR 99 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C2-6:2FTS-SURR 94 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C8-PFOA-SURR 97 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C9-PFNA-SURR 96 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C8-PFOS-SURR 97 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C2-8:2FTS-SURR 98 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C6-PFDA-SURR 89 %50-200 06/20/25 16:52 PSB EPA 533 Surrogate: 13C7-PFUnA-SURR 88 %50-200 06/20/25 16:52 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 12 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 ANALYTICAL RESULTS Sample: IF03326-09 Name: Sampled: Received: 06/14/25 11:30 06/11/25 10:02 TP023-GROUP WELLS SAMPLING STATION SS140 Reg ID:Drinking Water - GrabMatrix:UTAH27073 MethodAnalystAnalyzedMRLQualifierUnitResultParameterDilutionMDL Surrogate: 13C2-PFDoA-SURR 98 %50-200 06/20/25 16:52 PSB EPA 533 www.pacelabs.comCustomer #: 72-106174 Page 13 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 QC SAMPLE RESULTS Parameter Spike Result Unit Level Result Source %REC %REC Limits RPD RPD LimitQual Batch B535614 - EPA 533 - EPA 533 Blank (B535614-BLK1)Prepared: 06/17/25 Analyzed: 06/20/25 PFBA < 1.0 ng/L U PFMPA < 0.4 ng/L U PFPeA < 0.5 ng/L U PFBS < 0.5 ng/L U PFMBA < 0.4 ng/L U PFEESA < 0.5 ng/L U NFDHA < 0.5 ng/L U HFPO-DA < 0.4 ng/L U PFHxS < 0.4 ng/L U 4:2 FTS < 0.4 ng/L U PFHxA < 1.0 ng/L U PFHpA < 0.6 ng/L U PFPeS < 0.6 ng/L U ADONA < 0.5 ng/L U 6:2 FTS < 0.5 ng/L U PFOA < 0.7 ng/L U PFHpS < 0.6 ng/L U PFOS < 0.5 ng/L U PFNA < 0.5 ng/L U 9Cl-PF3ONS < 0.7 ng/L U 8:2 FTS < 0.5 ng/L U PFDA < 0.5 ng/L U PFUnA < 0.5 ng/L U 11Cl-PF3OUdS < 0.6 ng/L U PFDoA < 0.6 ng/L U Surrogate: 13C4-PFBA-SURR 37.6 ng/L 40.00 94 50-200 Surrogate: 13C5-PFPeA-SURR 36.9 ng/L 40.00 92 50-200 Surrogate: 13C3-PFBS-SURR 35.2 ng/L 37.28 94 50-200 Surrogate: 13C2-4:2FTS-SURR 131 ng/L 150.4 87 50-200 Surrogate: 13C5-PFHxA-SURR 38.1 ng/L 40.00 95 50-200 Surrogate: 13C3-HFPOA-DA-SURR 38.4 ng/L 40.00 96 50-200 Surrogate: 13C4-PFHpA-SURR 37.3 ng/L 40.00 93 50-200 Surrogate: 13C3-PFHxS-SURR 36.3 ng/L 37.92 96 50-200 Surrogate: 13C2-6:2FTS-SURR 134 ng/L 152.0 88 50-200 Surrogate: 13C8-PFOA-SURR 37.4 ng/L 40.00 93 50-200 Surrogate: 13C9-PFNA-SURR 39.2 ng/L 40.00 98 50-200 Surrogate: 13C8-PFOS-SURR 38.2 ng/L 38.32 100 50-200 Surrogate: 13C2-8:2FTS-SURR 143 ng/L 153.6 93 50-200 Surrogate: 13C6-PFDA-SURR 37.2 ng/L 40.00 93 50-200 Surrogate: 13C7-PFUnA-SURR 37.7 ng/L 40.00 94 50-200 Surrogate: 13C2-PFDoA-SURR 41.8 ng/L 40.00 105 50-200 LCS (B535614-BS1)Prepared: 06/17/25 Analyzed: 06/20/25 PFBA 2 ng/L 2.000 106 70-130 PFMPA 2 ng/L 2.000 93 70-130J www.pacelabs.comCustomer #: 72-106174 Page 14 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 QC SAMPLE RESULTS Parameter Spike Result Unit Level Result Source %REC %REC Limits RPD RPD LimitQual LCS (B535614-BS1)Prepared: 06/17/25 Analyzed: 06/20/25 PFPeA 2 ng/L 2.000 91 70-130J PFBS 2 ng/L 2.000 85 70-130J PFMBA 2 ng/L 2.000 80 70-130J PFEESA 2 ng/L 2.000 81 70-130J NFDHA 2 ng/L 2.000 91 70-130J HFPO-DA 2 ng/L 2.000 87 70-130J PFHxS 2 ng/L 2.000 94 70-130J 4:2 FTS 2 ng/L 2.000 100 70-130J PFHpA 2 ng/L 2.000 89 70-130J PFHxA 2 ng/L 2.000 96 70-130J PFPeS 2 ng/L 2.000 99 70-130J ADONA 2 ng/L 2.000 96 70-130J 6:2 FTS 2 ng/L 2.000 97 70-130J PFOA 2 ng/L 2.000 96 70-130J PFHpS 1 ng/L 2.000 75 70-130J PFOS 2 ng/L 2.000 89 70-130J PFNA 2 ng/L 2.000 92 70-130J 9Cl-PF3ONS 2 ng/L 2.000 76 70-130J 8:2 FTS 2 ng/L 2.000 110 70-130 PFDA 2 ng/L 2.000 88 70-130J PFUnA 2 ng/L 2.000 81 70-130J 11Cl-PF3OUdS 2 ng/L 2.000 85 70-130J PFDoA 2 ng/L 2.000 84 70-130J Surrogate: 13C4-PFBA-SURR 37.9 ng/L 40.00 95 50-200 Surrogate: 13C5-PFPeA-SURR 36.8 ng/L 40.00 92 50-200 Surrogate: 13C3-PFBS-SURR 35.3 ng/L 37.28 95 50-200 Surrogate: 13C2-4:2FTS-SURR 132 ng/L 150.4 88 50-200 Surrogate: 13C5-PFHxA-SURR 38.5 ng/L 40.00 96 50-200 Surrogate: 13C3-HFPOA-DA-SURR 38.5 ng/L 40.00 96 50-200 Surrogate: 13C4-PFHpA-SURR 37.7 ng/L 40.00 94 50-200 Surrogate: 13C3-PFHxS-SURR 36.2 ng/L 37.92 95 50-200 Surrogate: 13C2-6:2FTS-SURR 132 ng/L 152.0 87 50-200 Surrogate: 13C8-PFOA-SURR 38.1 ng/L 40.00 95 50-200 Surrogate: 13C9-PFNA-SURR 36.9 ng/L 40.00 92 50-200 Surrogate: 13C8-PFOS-SURR 35.9 ng/L 38.32 94 50-200 Surrogate: 13C2-8:2FTS-SURR 137 ng/L 153.6 89 50-200 Surrogate: 13C6-PFDA-SURR 33.2 ng/L 40.00 83 50-200 Surrogate: 13C7-PFUnA-SURR 33.8 ng/L 40.00 84 50-200 Surrogate: 13C2-PFDoA-SURR 35.4 ng/L 40.00 89 50-200 Duplicate (B535614-DUP1)Sample: IF03326-01 Prepared: 06/17/25 Analyzed: 06/20/25 PFBA < 1.0 ng/L ND 30U PFMPA < 0.4 ng/L ND 30U PFPeA < 0.5 ng/L ND 30U PFBS < 0.5 ng/L ND 30U PFMBA < 0.4 ng/L ND 30U PFEESA < 0.5 ng/L ND 30U NFDHA < 0.5 ng/L ND 30U www.pacelabs.comCustomer #: 72-106174 Page 15 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 QC SAMPLE RESULTS Parameter Spike Result Unit Level Result Source %REC %REC Limits RPD RPD LimitQual Duplicate (B535614-DUP1)Sample: IF03326-01 Prepared: 06/17/25 Analyzed: 06/20/25 HFPO-DA < 0.4 ng/L ND 30U PFHxS < 0.4 ng/L ND 30U 4:2 FTS < 0.4 ng/L ND 30U PFHpA < 0.6 ng/L ND 30U PFHxA < 1.0 ng/L ND 30U PFPeS < 0.6 ng/L ND 30U ADONA < 0.5 ng/L ND 30U 6:2 FTS < 0.5 ng/L ND 30U PFOA < 0.7 ng/L ND 30U PFHpS < 0.6 ng/L ND 30U PFOS < 0.5 ng/L ND 30U PFNA < 0.5 ng/L ND 30U 9Cl-PF3ONS < 0.7 ng/L ND 30U 8:2 FTS < 0.5 ng/L ND 30U PFDA < 0.5 ng/L ND 30U PFUnA < 0.5 ng/L ND 30U 11Cl-PF3OUdS < 0.6 ng/L ND 30U PFDoA < 0.6 ng/L ND 30U Surrogate: 13C4-PFBA-SURR 36.9 ng/L 40.14 92 50-200 Surrogate: 13C5-PFPeA-SURR 38.0 ng/L 40.14 95 50-200 Surrogate: 13C3-PFBS-SURR 36.0 ng/L 37.41 96 50-200 Surrogate: 13C2-4:2FTS-SURR 136 ng/L 150.9 90 50-200 Surrogate: 13C5-PFHxA-SURR 37.2 ng/L 40.14 93 50-200 Surrogate: 13C3-HFPOA-DA-SURR 37.4 ng/L 40.14 93 50-200 Surrogate: 13C4-PFHpA-SURR 36.6 ng/L 40.14 91 50-200 Surrogate: 13C3-PFHxS-SURR 37.6 ng/L 38.06 99 50-200 Surrogate: 13C2-6:2FTS-SURR 138 ng/L 152.5 91 50-200 Surrogate: 13C8-PFOA-SURR 37.1 ng/L 40.14 92 50-200 Surrogate: 13C9-PFNA-SURR 37.4 ng/L 40.14 93 50-200 Surrogate: 13C8-PFOS-SURR 37.0 ng/L 38.46 96 50-200 Surrogate: 13C2-8:2FTS-SURR 149 ng/L 154.2 97 50-200 Surrogate: 13C6-PFDA-SURR 36.0 ng/L 40.14 90 50-200 Surrogate: 13C7-PFUnA-SURR 36.0 ng/L 40.14 90 50-200 Surrogate: 13C2-PFDoA-SURR 37.3 ng/L 40.14 93 50-200 Matrix Spike (B535614-MS1)Sample: IF03326-03 Prepared: 06/17/25 Analyzed: 06/20/25 PFBA 2 ng/L 1.900 ND 119 70-130 PFMPA 2 ng/L 1.900 ND 108 70-130 PFPeA 2 ng/L 1.900 ND 106 70-130 PFBS 2 ng/L 1.900 ND 99 70-130J PFMBA 2 ng/L 1.900 ND 87 70-130J PFEESA 2 ng/L 1.900 ND 82 70-130J HFPO-DA 2 ng/L 1.900 ND 95 70-130J NFDHA 2 ng/L 1.900 ND 95 70-130J PFHxS 2 ng/L 1.900 ND 94 70-130J 4:2 FTS 2 ng/L 1.900 ND 114 70-130 PFHxA 2 ng/L 1.900 ND 102 70-130 PFHpA 2 ng/L 1.900 ND 94 70-130J www.pacelabs.comCustomer #: 72-106174 Page 16 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 QC SAMPLE RESULTS Parameter Spike Result Unit Level Result Source %REC %REC Limits RPD RPD LimitQual Matrix Spike (B535614-MS1)Sample: IF03326-03 Prepared: 06/17/25 Analyzed: 06/20/25 PFPeS 2 ng/L 1.900 ND 102 70-130 ADONA 2 ng/L 1.900 ND 104 70-130 6:2 FTS 2 ng/L 1.900 ND 121 70-130 PFOA 2 ng/L 1.900 ND 100 70-130J PFHpS 2 ng/L 1.900 ND 95 70-130J PFOS 2 ng/L 1.900 ND 92 70-130J PFNA 2 ng/L 1.900 ND 100 70-130J 9Cl-PF3ONS 2 ng/L 1.900 ND 89 70-130J 8:2 FTS 2 ng/L 1.900 ND 119 70-130 PFDA 2 ng/L 1.900 ND 91 70-130J PFUnA 2 ng/L 1.900 ND 87 70-130J 11Cl-PF3OUdS 2 ng/L 1.900 ND 89 70-130J PFDoA 2 ng/L 1.900 ND 92 70-130J Surrogate: 13C4-PFBA-SURR 35.3 ng/L 37.99 93 50-200 Surrogate: 13C5-PFPeA-SURR 36.9 ng/L 37.99 97 50-200 Surrogate: 13C3-PFBS-SURR 34.7 ng/L 35.41 98 50-200 Surrogate: 13C2-4:2FTS-SURR 128 ng/L 142.9 89 50-200 Surrogate: 13C5-PFHxA-SURR 36.2 ng/L 37.99 95 50-200 Surrogate: 13C3-HFPOA-DA-SURR 36.3 ng/L 37.99 96 50-200 Surrogate: 13C4-PFHpA-SURR 35.6 ng/L 37.99 94 50-200 Surrogate: 13C3-PFHxS-SURR 36.3 ng/L 36.02 101 50-200 Surrogate: 13C2-6:2FTS-SURR 134 ng/L 144.4 93 50-200 Surrogate: 13C8-PFOA-SURR 36.8 ng/L 37.99 97 50-200 Surrogate: 13C9-PFNA-SURR 36.0 ng/L 37.99 95 50-200 Surrogate: 13C8-PFOS-SURR 34.3 ng/L 36.40 94 50-200 Surrogate: 13C2-8:2FTS-SURR 141 ng/L 145.9 96 50-200 Surrogate: 13C6-PFDA-SURR 33.9 ng/L 37.99 89 50-200 Surrogate: 13C7-PFUnA-SURR 32.6 ng/L 37.99 86 50-200 Surrogate: 13C2-PFDoA-SURR 32.6 ng/L 37.99 86 50-200 www.pacelabs.comCustomer #: 72-106174 Page 17 of 21 Pace Analytical Services, LLC 2231 W. Altorfer Drive Peoria, IL 61615 (800)752-6651 NOTES Specifications regarding method revisions, method modifications, and calculations used for analysis are available upon request. Please contact your project manager. * Not a TNI accredited analyte Certifications CHI - McHenry, IL - 4314-A W. Crystal Lake Road, McHenry, IL 60050 TNI Accreditation for Drinking Water and Wastewater Fields of Testing through IL EPA Accreditation No. 100279 Illinois Department of Public Health Bacterial Analysis in Drinking Water Approved Laboratory Registry No. 17556 PIA - Peoria, IL - 2231 W. Altorfer Drive, Peoria, IL 61615 TNI Accreditation for Drinking Water, Wastewater, Solid and Hazardous Material Fields of Testing through IL EPA Accreditation No. 100230 Illinois Department of Public Health Bacterial Analysis in Drinking Water Approved Laboratory Registry No. 17553 Drinking Water Certifications/Accreditations: Iowa (240); Kansas (E-10338); Missouri (870) Wastewater Certifications/Accreditations: Arkansas (88-0677); Iowa (240); Kansas (E-10338) Solid and Hazardous Material Certifications/Accreditations: Arkansas (88-0677); Iowa (240); Kansas (E-10338) SPMO - Springfield, MO - 1805 W Sunset Street, Springfield, MO 65807 USEPA DMR-QA Program STL - Hazelwood, MO - 944 Anglum Rd, Hazelwood, MO 63042 TNI Accreditation for Wastewater, Solid and Hazardous Material Fields of Testing through KS KDHE Certification No. E-10389 TNI Accreditation for Wastewater, Solid and Hazardous Material Fields of Testing through IL EPA Accreditation No. - 200080 Illinois Department of Public Health Bacterial Analysis in Drinking Water Approved Laboratory, Registry No. 171050 Missouri Department of Natural Resources - Certificate of Approval for Microbiological Laboratory Service - No. 1050 Qualifiers J Estimated value; value between the Method Detection Limit and Method Reporting Limit. U Parameter was analyzed for, but not detected above the reporting limit. Certified by:Janet Clutters, Project Manager www.pacelabs.comCustomer #: 72-106174 Page 18 of 21 Page 19 of 21 Page 20 of 21 Page 21 of 21