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Home My WebLink AboutDDW-2025-001299Thank you for using BSK Associates for your analytical testing needs. In the following pages, you will find the test results for the samples submitted to our laboratory on 1/14/2025. The results have been approved for release by our Laboratory Director as indicated by the authorizing signature below. The samples were analyzed for the test(s) indicated on the Chain of Custody (see attached) and the results relate only to the samples analyzed. BSK certifies that the testing was performed in accordance with the quality system requirements specified in the 2016 TNI Standard. Any deviations from this standard or from the method requirements for each test procedure performed will be annotated alongside the analytical result or noted in the Case Narrative. Unless otherwise noted, the sample results are reported on an “as received” basis. This certificate of analysis shall not be reproduced except in full, without written approval of the laboratory. If additional clarification of any information is required, please contact your Client Services Representative, Heather S. Johnson , at 559-497-2888. Thank you again for using BSK Associates. We value your business and appreciate your loyalty. Sincerely, WaterPro, Inc Draper, UT 84020 P.O. Box 156 Dear Jerry Nielson, Jerry Nielson 1/20/2025 AIA1834 RE: Report for AIA1834 PFAS Heather S. Johnson, Project Manager Accredited in Accordance with NELAP ORELAP #4021 BSK Associates Laboratory Fresno 687 N. Laverne Avenue Fresno, CA 93727 559-497-2888 (Main) Invoice: AI01483 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 1 of 20 AIA1834 PFAS Case Narrative Project and Report Details Client:WaterPro, Inc Report To: Project #: Received:1/14/2025 - 12:56 Jerry Nielson Invoice To: Invoice Attn: WaterPro, Inc Jerry Nielson Project PO#:- Report Due:1/28/2025 Invoice Details - Sample Receipt Conditions Default CoolerCooler:Containers Intact COC/Labels Agree Preservation Confirmed Received On Ice Sample(s) were received in temperature range. Initial receipt at BSK-FAL Data Qualifiers The following qualifiers have been applied to one or more analytical results: J Estimated value Recipient(s) Report Format Report Distribution CC: Jerry Nielson FINAL.RPT www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 2 of 20 Certificate of Analysis AIA1834 PFAS Sample Description: Draper WTP Sample ID: AIA1834-01 03/23/2023 - 09:24 Sampled By: FS Brett Robbins Drinking Water Sample Date - Time: Matrix: Sample Type: BSK Associates Laboratory Fresno Organics ResultAnalyte RL Prepared Analyzed RL MultUnitsMethod Batch QualMDL PFAS Short Chain 2.011Cl-PF3OUdS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.09Cl-PF3ONS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0ADONA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0HFPO-DA 04/16/23 04/18/23AIA0960ND10.73 ng/LEPA 533 2.0NFDHA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFBA 04/16/23 04/18/23AIA0960ND10.80 ng/LEPA 533 2.0PFBS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.08:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFDA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFDoA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFEESA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHpS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHpA 04/16/23 04/18/23AIA0960ND10.78 ng/LEPA 533 2.04:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHxS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHxA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFMPA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFMBA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFNA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.06:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFOS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFOA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFPeA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFPeS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFUnDA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 0.20Hazard Index 04/16/23 04/18/23AIA0960ND1EPA 533 Surrogate: S-13C4-PFBA Acceptable range: 50-200 %97 %EPA 533 Surrogate: S-13C5PFPeA Acceptable range: 50-200 %85 %EPA 533 Surrogate: S-13C3-PFBS Acceptable range: 50-200 %85 %EPA 533 Surrogate: S-13C2-4:2FTS Acceptable range: 50-200 %97 %EPA 533 Surrogate: S-13C5PFHxA Acceptable range: 50-200 %99 %EPA 533 Surrogate: S-13C3-HFPO-DA Acceptable range: 50-200 %90 %EPA 533 Surrogate: S-13C4PFHpA Acceptable range: 50-200 %99 %EPA 533 Surrogate: S-13C3-PFHxS Acceptable range: 50-200 %88 %EPA 533 Surrogate: S-13C2-6:2FTS Acceptable range: 50-200 %108 %EPA 533 Surrogate: S-13C8PFOA Acceptable range: 50-200 %99 %EPA 533 Surrogate: S-13C9PFNA Acceptable range: 50-200 %98 %EPA 533 Surrogate: S-13C8-PFOS Acceptable range: 50-200 %89 %EPA 533 Surrogate: S-13C2-8:2FTS Acceptable range: 50-200 %101 %EPA 533 Surrogate: S-13C6PFDA Acceptable range: 50-200 %100 %EPA 533 Surrogate: S-13C7-PFUnDA Acceptable range: 50-200 %88 %EPA 533 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 3 of 20 Certificate of Analysis AIA1834 PFAS Sample Description: Draper WTP Sample ID: AIA1834-01 03/23/2023 - 09:24 Sampled By: FS Brett Robbins Drinking Water Sample Date - Time: Matrix: Sample Type: Organics ResultAnalyte RL Prepared Analyzed RL MultUnitsMethod Batch QualMDL Surrogate: S-13C2PFDoA Acceptable range: 50-200 %74 %EPA 533 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 4 of 20 Certificate of Analysis AIA1834 PFAS Sample Description: Well #1 Sample ID: AIA1834-03 03/23/2023 - 11:25 Sampled By: FS Brett Robbins Drinking Water Sample Date - Time: Matrix: Sample Type: BSK Associates Laboratory Fresno Organics ResultAnalyte RL Prepared Analyzed RL MultUnitsMethod Batch QualMDL PFAS Short Chain 2.011Cl-PF3OUdS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.09Cl-PF3ONS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0ADONA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0HFPO-DA 04/16/23 04/18/23AIA0960ND10.73 ng/LEPA 533 2.0NFDHA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFBA 04/16/23 04/18/23AIA0960ND10.80 ng/LEPA 533 2.0PFBS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.08:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFDA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFDoA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFEESA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHpS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHpA 04/16/23 04/18/23AIA0960ND10.78 ng/LEPA 533 2.04:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHxS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHxA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFMPA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFMBA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFNA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.06:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFOS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFOA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFPeA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFPeS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFUnDA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 0.20Hazard Index 04/16/23 04/18/23AIA0960ND1EPA 533 Surrogate: S-13C4-PFBA Acceptable range: 50-200 %98 %EPA 533 Surrogate: S-13C5PFPeA Acceptable range: 50-200 %89 %EPA 533 Surrogate: S-13C3-PFBS Acceptable range: 50-200 %89 %EPA 533 Surrogate: S-13C2-4:2FTS Acceptable range: 50-200 %93 %EPA 533 Surrogate: S-13C5PFHxA Acceptable range: 50-200 %94 %EPA 533 Surrogate: S-13C3-HFPO-DA Acceptable range: 50-200 %83 %EPA 533 Surrogate: S-13C4PFHpA Acceptable range: 50-200 %97 %EPA 533 Surrogate: S-13C3-PFHxS Acceptable range: 50-200 %90 %EPA 533 Surrogate: S-13C2-6:2FTS Acceptable range: 50-200 %96 %EPA 533 Surrogate: S-13C8PFOA Acceptable range: 50-200 %101 %EPA 533 Surrogate: S-13C9PFNA Acceptable range: 50-200 %94 %EPA 533 Surrogate: S-13C8-PFOS Acceptable range: 50-200 %95 %EPA 533 Surrogate: S-13C2-8:2FTS Acceptable range: 50-200 %100 %EPA 533 Surrogate: S-13C6PFDA Acceptable range: 50-200 %101 %EPA 533 Surrogate: S-13C7-PFUnDA Acceptable range: 50-200 %89 %EPA 533 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 5 of 20 Certificate of Analysis AIA1834 PFAS Sample Description: Well #1 Sample ID: AIA1834-03 03/23/2023 - 11:25 Sampled By: FS Brett Robbins Drinking Water Sample Date - Time: Matrix: Sample Type: Organics ResultAnalyte RL Prepared Analyzed RL MultUnitsMethod Batch QualMDL Surrogate: S-13C2PFDoA Acceptable range: 50-200 %87 %EPA 533 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 6 of 20 Certificate of Analysis AIA1834 PFAS Sample Description: Jordan Valley WCD Intertie Sample ID: AIA1834-05 03/23/2023 - 10:25 Sampled By: FS Brett Robbins Drinking Water Sample Date - Time: Matrix: Sample Type: BSK Associates Laboratory Fresno Organics ResultAnalyte RL Prepared Analyzed RL MultUnitsMethod Batch QualMDL PFAS Short Chain 2.011Cl-PF3OUdS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.09Cl-PF3ONS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0ADONA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0HFPO-DA 04/16/23 04/18/23AIA0960ND10.73 ng/LEPA 533 2.0NFDHA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFBA 04/16/23 04/18/23AIA09600.83 10.80 ng/LEPA 533 J 2.0PFBS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.08:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFDA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFDoA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFEESA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHpS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHpA 04/16/23 04/18/23AIA0960ND10.78 ng/LEPA 533 2.04:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHxS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFHxA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFMPA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFMBA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFNA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.06:2 FTS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFOS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFOA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFPeA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFPeS 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 2.0PFUnDA 04/16/23 04/18/23AIA0960ND10.67 ng/LEPA 533 0.20Hazard Index 04/16/23 04/18/23AIA0960ND1EPA 533 Surrogate: S-13C4-PFBA Acceptable range: 50-200 %96 %EPA 533 Surrogate: S-13C5PFPeA Acceptable range: 50-200 %84 %EPA 533 Surrogate: S-13C3-PFBS Acceptable range: 50-200 %86 %EPA 533 Surrogate: S-13C2-4:2FTS Acceptable range: 50-200 %97 %EPA 533 Surrogate: S-13C5PFHxA Acceptable range: 50-200 %92 %EPA 533 Surrogate: S-13C3-HFPO-DA Acceptable range: 50-200 %92 %EPA 533 Surrogate: S-13C4PFHpA Acceptable range: 50-200 %102 %EPA 533 Surrogate: S-13C3-PFHxS Acceptable range: 50-200 %90 %EPA 533 Surrogate: S-13C2-6:2FTS Acceptable range: 50-200 %104 %EPA 533 Surrogate: S-13C8PFOA Acceptable range: 50-200 %103 %EPA 533 Surrogate: S-13C9PFNA Acceptable range: 50-200 %96 %EPA 533 Surrogate: S-13C8-PFOS Acceptable range: 50-200 %93 %EPA 533 Surrogate: S-13C2-8:2FTS Acceptable range: 50-200 %112 %EPA 533 Surrogate: S-13C6PFDA Acceptable range: 50-200 %98 %EPA 533 Surrogate: S-13C7-PFUnDA Acceptable range: 50-200 %80 %EPA 533 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 7 of 20 Certificate of Analysis AIA1834 PFAS Sample Description: Jordan Valley WCD Intertie Sample ID: AIA1834-05 03/23/2023 - 10:25 Sampled By: FS Brett Robbins Drinking Water Sample Date - Time: Matrix: Sample Type: Organics ResultAnalyte RL Prepared Analyzed RL MultUnitsMethod Batch QualMDL Surrogate: S-13C2PFDoA Acceptable range: 50-200 %68 %EPA 533 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 8 of 20 Certificate of Analysis AIA1834 PFAS Sample Description: Pre-Treatment EP Sample ID: AIA1834-09 03/23/2023 - 09:37 Sampled By: FS Brett Robbins Drinking Water Sample Date - Time: Matrix: Sample Type: BSK Associates Laboratory Fresno Organics ResultAnalyte RL Prepared Analyzed RL MultUnitsMethod Batch QualMDL PFAS Short Chain 2.011Cl-PF3OUdS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.09Cl-PF3ONS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0ADONA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0HFPO-DA 04/16/23 04/19/23AIA0960ND10.73 ng/LEPA 533 2.0NFDHA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFBA 04/16/23 04/19/23AIA09600.80 10.80 ng/LEPA 533 J 2.0PFBS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.08:2 FTS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFDA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFDoA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFEESA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFHpS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFHpA 04/16/23 04/19/23AIA0960ND10.78 ng/LEPA 533 2.04:2 FTS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFHxS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFHxA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFMPA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFMBA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFNA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.06:2 FTS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFOS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFOA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFPeA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFPeS 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 2.0PFUnDA 04/16/23 04/19/23AIA0960ND10.67 ng/LEPA 533 0.20Hazard Index 04/16/23 04/19/23AIA0960ND1EPA 533 Surrogate: S-13C4-PFBA Acceptable range: 50-200 %95 %EPA 533 Surrogate: S-13C5PFPeA Acceptable range: 50-200 %87 %EPA 533 Surrogate: S-13C3-PFBS Acceptable range: 50-200 %85 %EPA 533 Surrogate: S-13C2-4:2FTS Acceptable range: 50-200 %99 %EPA 533 Surrogate: S-13C5PFHxA Acceptable range: 50-200 %90 %EPA 533 Surrogate: S-13C3-HFPO-DA Acceptable range: 50-200 %88 %EPA 533 Surrogate: S-13C4PFHpA Acceptable range: 50-200 %95 %EPA 533 Surrogate: S-13C3-PFHxS Acceptable range: 50-200 %86 %EPA 533 Surrogate: S-13C2-6:2FTS Acceptable range: 50-200 %113 %EPA 533 Surrogate: S-13C8PFOA Acceptable range: 50-200 %96 %EPA 533 Surrogate: S-13C9PFNA Acceptable range: 50-200 %91 %EPA 533 Surrogate: S-13C8-PFOS Acceptable range: 50-200 %96 %EPA 533 Surrogate: S-13C2-8:2FTS Acceptable range: 50-200 %101 %EPA 533 Surrogate: S-13C6PFDA Acceptable range: 50-200 %92 %EPA 533 Surrogate: S-13C7-PFUnDA Acceptable range: 50-200 %73 %EPA 533 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 9 of 20 Certificate of Analysis AIA1834 PFAS Sample Description: Pre-Treatment EP Sample ID: AIA1834-09 03/23/2023 - 09:37 Sampled By: FS Brett Robbins Drinking Water Sample Date - Time: Matrix: Sample Type: Organics ResultAnalyte RL Prepared Analyzed RL MultUnitsMethod Batch QualMDL Surrogate: S-13C2PFDoA Acceptable range: 50-200 %50 %EPA 533 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 10 of 20 AIA1834 PFAS Organics Quality Control Report BSK Associates Laboratory Fresno Analyte Result Units Level Spike Result %REC Limits RPD Limit QualRL Source %REC RPD Date AnalyzedMDL Batch: AIA0960 Prepared: 4/16/2023 Analyst: JMMPrep Method: EPA 533 EPA 533 - Quality Control Blank (AIA0960-BLK1) 11Cl-PF3OUdS ND ng/L2.0 04/18/230.67 9Cl-PF3ONS ND ng/L2.0 04/18/230.67 ADONA ND ng/L2.0 04/18/230.67 HFPO-DA ND ng/L2.0 04/18/230.73 NFDHA ND ng/L2.0 04/18/230.67 PFBA ND ng/L2.0 04/18/230.80 PFBS ND ng/L2.0 04/18/230.67 8:2 FTS ND ng/L2.0 04/18/230.67 PFDA ND ng/L2.0 04/18/230.67 PFDoA ND ng/L2.0 04/18/230.67 PFEESA ND ng/L2.0 04/18/230.67 PFHpS ND ng/L2.0 04/18/230.67 PFHpA ND ng/L2.0 04/18/230.78 4:2 FTS ND ng/L2.0 04/18/230.67 PFHxS ND ng/L2.0 04/18/230.67 PFHxA ND ng/L2.0 04/18/230.67 PFMPA ND ng/L2.0 04/18/230.67 PFMBA ND ng/L2.0 04/18/230.67 PFNA ND ng/L2.0 04/18/230.67 6:2 FTS ND ng/L2.0 04/18/230.67 PFOS ND ng/L2.0 04/18/230.67 PFOA ND ng/L2.0 04/18/230.67 PFPeA ND ng/L2.0 04/18/230.67 PFPeS ND ng/L2.0 04/18/230.67 PFUnDA ND ng/L2.0 04/18/230.67 50-200Surrogate: S-13C4-PFBA 9739 40 04/18/23 50-200Surrogate: S-13C5PFPeA 9638 40 04/18/23 50-200Surrogate: S-13C3-PFBS 9939 40 04/18/23 50-200Surrogate: S-13C2-4:2FTS 96150 160 04/18/23 50-200Surrogate: S-13C5PFHxA 9638 40 04/18/23 50-200Surrogate: S-13C3-HFPO-DA 9639 40 04/18/23 50-200Surrogate: S-13C4PFHpA 9538 40 04/18/23 50-200Surrogate: S-13C3-PFHxS 10040 40 04/18/23 50-200Surrogate: S-13C2-6:2FTS 95150 160 04/18/23 50-200Surrogate: S-13C8PFOA 9538 40 04/18/23 50-200Surrogate: S-13C9PFNA 9337 40 04/18/23 50-200Surrogate: S-13C8-PFOS 9638 40 04/18/23 50-200Surrogate: S-13C2-8:2FTS 93150 160 04/18/23 50-200Surrogate: S-13C6PFDA 9438 40 04/18/23 50-200Surrogate: S-13C7-PFUnDA 9438 40 04/18/23 50-200Surrogate: S-13C2PFDoA 9337 40 04/18/23 Blank Spike (AIA0960-BS1) J70-1309811Cl-PF3OUdS 2.02.0 ng/L2.0 04/18/230.67 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 11 of 20 AIA1834 PFAS Organics Quality Control Report BSK Associates Laboratory Fresno Analyte Result Units Level Spike Result %REC Limits RPD Limit QualRL Source %REC RPD Date AnalyzedMDL Batch: AIA0960 Prepared: 4/16/2023 Analyst: JMMPrep Method: EPA 533 EPA 533 - Quality Control Blank Spike (AIA0960-BS1) 70-1301069Cl-PF3ONS 2.02.1 ng/L2.0 04/18/230.67 70-130116ADONA2.02.3 ng/L2.0 04/18/230.67 70-130130HFPO-DA 2.02.6 ng/L2.0 04/18/230.73 70-130108NFDHA2.02.2 ng/L2.0 04/18/230.67 70-130115PFBA2.02.3 ng/L2.0 04/18/230.80 70-130115PFBS2.02.3 ng/L2.0 04/18/230.67 J70-130968:2 FTS 2.01.9 ng/L2.0 04/18/230.67 70-130107PFDA2.02.1 ng/L2.0 04/18/230.67 70-130103PFDoA2.02.1 ng/L2.0 04/18/230.67 70-130108PFEESA2.02.2 ng/L2.0 04/18/230.67 J70-13088PFHpS2.01.8 ng/L2.0 04/18/230.67 70-130110PFHpA2.02.2 ng/L2.0 04/18/230.78 70-1301134:2 FTS 2.02.3 ng/L2.0 04/18/230.67 70-130102PFHxS2.02.0 ng/L2.0 04/18/230.67 70-130105PFHxA2.02.1 ng/L2.0 04/18/230.67 70-130111PFMPA2.02.2 ng/L2.0 04/18/230.67 70-130110PFMBA2.02.2 ng/L2.0 04/18/230.67 70-130111PFNA2.02.2 ng/L2.0 04/18/230.67 70-1301076:2 FTS 2.02.1 ng/L2.0 04/18/230.67 J70-13096PFOS2.01.9 ng/L2.0 04/18/230.67 70-130111PFOA2.02.2 ng/L2.0 04/18/230.67 70-130116PFPeA2.02.3 ng/L2.0 04/18/230.67 70-130105PFPeS2.02.1 ng/L2.0 04/18/230.67 50-150106PFUnDA2.02.1 ng/L2.0 04/18/230.67 50-200Surrogate: S-13C4-PFBA 9839 40 04/18/23 50-200Surrogate: S-13C5PFPeA 9940 40 04/18/23 50-200Surrogate: S-13C3-PFBS 10542 40 04/18/23 50-200Surrogate: S-13C2-4:2FTS 101160 160 04/18/23 50-200Surrogate: S-13C5PFHxA 10040 40 04/18/23 50-200Surrogate: S-13C3-HFPO-DA 8534 40 04/18/23 50-200Surrogate: S-13C4PFHpA 9739 40 04/18/23 50-200Surrogate: S-13C3-PFHxS 10542 40 04/18/23 50-200Surrogate: S-13C2-6:2FTS 102160 160 04/18/23 50-200Surrogate: S-13C8PFOA 9739 40 04/18/23 50-200Surrogate: S-13C9PFNA 9538 40 04/18/23 50-200Surrogate: S-13C8-PFOS 10442 40 04/18/23 50-200Surrogate: S-13C2-8:2FTS 100160 160 04/18/23 50-200Surrogate: S-13C6PFDA 9538 40 04/18/23 50-200Surrogate: S-13C7-PFUnDA 9438 40 04/18/23 50-200Surrogate: S-13C2PFDoA 9337 40 04/18/23 www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 12 of 20 AIA1834 PFAS Certificate of Analysis Notes: · The Chain of Custody document and Sample Integrity Sheet are part of the analytical report. · Any remaining sample(s) for testing will be disposed of according to BSK's sample retention policy unless other arrangements are made in advance. · All positive results for EPA Methods 504.1 and 524.2 require the analysis of a Field Reagent Blank (FRB) to confirm that the results are not a contamination error from field sampling steps. If Field Reagent Blanks were not submitted with the samples, this method requirement has not been performed. · Samples collected by BSK Analytical Laboratories were collected in accordance with the BSK Sampling and Collection Standard Operating Procedures. · J-value is equivalent to DNQ (Detected, not quantified) which is a trace value. A trace value is an analyte detected between the MDL and the laboratory reporting limit. This result is of an unknown data quality and is only qualitative (estimated). Baseline noise, calibration curve extrapolation below the lowest calibrator, method blank detections, and integration artifacts can all produce apparent DNQ values, which contribute to the un-reliability of these values. · (1) - Residual chlorine and pH analysis have a 15 minute holding time for both drinking and waste water samples as defined by the EPA and 40 CFR 136. Waste water and ground water (monitoring well) samples must be field filtered to meet the 15 minute holding time for dissolved metals. · Field tests are outside the scope of laboratory accreditation and there is no certification available for field testing. · Summations of analytes (i.e. Total Trihalomethanes) may appear to add individual amounts incorrectly, due to rounding of analyte values occurring before or after the total value is calculated, as well as rounding of the total value. · RL Multiplier is the factor used to adjust the reporting limit (RL) due to variations in sample preparation procedures and dilutions required for matrix interferences. · Due to the subjective nature of the Threshold Odor Method, all characterizations of the detected odor are the opinion of the panel of analysts. The characterizations can be found in Standard Methods 2170B Figure 2170:1. · The MCLs provided in this report (if applicable) represent the primary MCLs for that analyte. · (2) - Formerly known as Bis(2-Chloroisopropyl) ether. Unless otherwise noted, TOC results by SM 5310C method do not include purgeable organic carbon, which is removed along with the inorganic carbon interference. The POC contribution to TOC is considered to be negligible. www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 13 of 20 AIA1834 PFAS Certificate of Analysis Definitions mg/L: Milligrams/Liter (ppm) mg/Kg: Milligrams/Kilogram (ppm) µg/L: Micrograms/Liter (ppb) µg/Kg: Micrograms/Kilogram (ppb) %: Percent NR: Non-Reportable MDL: Method Detection Limit RL: Reporting Limit: DL x Dilution ND: None Detected below MRL/MDL pCi/L: PicoCuries per Liter RL Mult: RL Multiplier MCL: Maximum Contaminant Limit MDA95: Min. Detected Activity MPN: Most Probable Number CFU: Colony Forming Unit Absent: Less than 1 CFU/100mLs Present: 1 or more CFU/100mLs U: The analyte was not detected at or above the reported sample quantitation limit. Please see the individual Subcontract Lab's report for applicable certifications. The following parameters are not available for certification through CA ELAP: Odor Diisopropyl ether (DIPE) by EPA 524.2 The following parameters are calculated values and are outside the scope of our NELAP accreditation: Total Nitrogen Aggressive Index Trivalent Chromium BSK is not accredited under the NELAP program for the following additional parameters:**NA** www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 14 of 20 AIA1834 PFAS Certificate of Analysis Certifications: Please refer to our website for a copy of our Accredited Fields of Testing under each certification. Fresno 1180State of California - ELAP 4021State of Hawaii 9254479Los Angeles CSD 4021-023NELAP certified NV-C24-00233State of Nevada 4021-023State of Oregon - NELAP CA00079EPA UCMR5 C997-24bState of Washington Sacramento 1180-S1State of California - ELAP San Bernardino 1180-S2State of California - ELAP 9254478Los Angeles CSD 4119-009NELAP certified 4119-009State of Oregon - NELAP Vancouver WA100008-019NELAP certified WA100008-019State of Oregon - NELAP C824-24State of Washington www.BSKAssociates.com The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. AIA1834 FINAL 01202025 0947 Page 15 of 20 Page 16 of 20 Page 17 of 20 Page 18 of 20 Page 19 of 20 Page 20 of 20