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Iowa DNR Drinking Water ReportANALYTICAL REPORT Eurofins Eaton Analytical - South Bend 110 S Hill Street South Bend, IN 46617 Tel: (574)233-4777 Laboratory Job ID: 810-7357-1 Client Project/Site: PFC18 For: Iowa Department of Natural Resources 502 East 9th Des Moines, Iowa 50319 Attn: Claire Hruby Authorized for release by: 12/2/2021 5:24:00 PM Nathan Trowbridge, Manager of Project Management (574)233-4777 nathan.trowbridge@eurofinset.com Designee for Traci Chlebowski, Project Manager (574)233-4777 traci.chlebowski@eurofinset.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Table of Contents Client: Iowa Department of Natural Resources Project/Site: PFC18 Laboratory Job ID: 810-7357-1 Page 2 of 29 Eurofins Eaton Analytical - South Bend12/2/2021 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Isotope Dilution Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Definitions/Glossary Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Qualifiers LCMS Qualifier Description J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Qualifier Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Eaton Analytical - South Bend Page 3 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Case Narrative Client: Iowa Department of Natural Resources Job ID: 810-7357-1 Project/Site: PFC18 Job ID: 810-7357-1 Laboratory: Eurofins Eaton Analytical - South Bend Narrative Job Narrative 810-7357-1 Comments No additional comments. Receipt The samples were received on 11/11/2021 9:15 AM. Unless otherwise noted below, the samples arrived in good condition, and where required, properly preserved and on ice. The temperature of the cooler at receipt was 1.4º C. LCMS No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Eurofins Eaton Analytical - South BendPage 4 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Client Sample ID: 160-Iowa River (Sand Pit) Raw Lab Sample ID: 810-7357-1 PWSID Number: IA5225079 Perfluorobutanoic acid (PFBA) RL 1.9 ng/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA13.2 533 Perfluorooctanesulfonic acid (PFOS)1.9 ng/L Total/NA12.4 533 Client Sample ID: 161-Iowa River at New Plant Raw Lab Sample ID: 810-7357-2 PWSID Number: IA5225079 Perfluoropentanoic acid (PFPeA) RL 1.9 ng/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA13.3 533 Client Sample ID: 162-S/EP IA River-Finished Lab Sample ID: 810-7357-3 PWSID Number: IA5225079 Perfluorobutanoic acid (PFBA) RL 1.8 ng/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA13.0 533 Client Sample ID: 163-Site 39-Blank Lab Sample ID: 810-7357-4 PWSID Number: IA5225079 No Detections. Client Sample ID: 164-Site 39-Duplicate Lab Sample ID: 810-7357-5 PWSID Number: IA5225079 Perfluorobutanoic acid (PFBA) RL 1.8 ng/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA13.0 533 Eurofins Eaton Analytical - South Bend This Detection Summary does not include radiochemical test results. Page 5 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Lab Sample ID: 810-7357-1Client Sample ID: 160-Iowa River (Sand Pit) Raw Matrix: WaterDate Collected: 11/10/21 13:55 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water RL Perfluorobutanoic acid (PFBA)3.2 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluoropentanoic acid (PFPeA)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluorohexanoic acid (PFHxA)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluoroheptanoic acid (PFHpA)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluorooctanoic acid (PFOA)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluorononanoic acid (PFNA)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluorodecanoic acid (PFDA)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluoroundecanoic acid (PFUnA)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluorododecanoic acid (PFDoA)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluorobutanesulfonic acid (PFBS)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluoropentanesulfonic acid (PFPeS) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluorohexanesulfonic acid (PFHxS)<1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluoroheptanesulfonic Acid (PFHpS) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluorooctanesulfonic acid (PFOS) 2.4 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 11H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 11H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 11H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 14,8-Dioxa-3H-perfluorononanoic acid (ADONA) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 19-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 111-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluoro-4-methoxybutanoic acid (PFMBA) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Perfluoro-3-methoxypropanoic acid (PFMPA) <1.9 1.9 ng/L 11/16/21 06:09 11/17/21 00:24 1Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) <1.9 13C4 PFBA 93 50-200 11/16/21 06:09 11/17/21 00:24 1 Isotope Dilution Dil FacAnalyzedPreparedQualifierLimits%Recovery 13C5 PFPeA 112 11/16/21 06:09 11/17/21 00:24 150-200 13C5 PFHxA 97 11/16/21 06:09 11/17/21 00:24 150-200 13C4 PFHpA 94 11/16/21 06:09 11/17/21 00:24 150-200 13C8 PFOA 89 11/16/21 06:09 11/17/21 00:24 150-200 13C9 PFNA 88 11/16/21 06:09 11/17/21 00:24 150-200 13C6 PFDA 84 11/16/21 06:09 11/17/21 00:24 150-200 13C7 PFUnA 80 11/16/21 06:09 11/17/21 00:24 150-200 13C2 PFDoA 75 11/16/21 06:09 11/17/21 00:24 150-200 13C3 HFPO-DA 95 11/16/21 06:09 11/17/21 00:24 150-200 13C3 PFBS 103 11/16/21 06:09 11/17/21 00:24 150-200 13C8 PFOS 96 11/16/21 06:09 11/17/21 00:24 150-200 13C2-4:2-FTS 119 11/16/21 06:09 11/17/21 00:24 150-200 Eurofins Eaton Analytical - South Bend Page 6 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Lab Sample ID: 810-7357-1Client Sample ID: 160-Iowa River (Sand Pit) Raw Matrix: WaterDate Collected: 11/10/21 13:55 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) 13C2-6:2-FTS 103 50-200 11/16/21 06:09 11/17/21 00:24 1 Isotope Dilution Dil FacAnalyzedPreparedQualifierLimits%Recovery 13C2-8:2-FTS 107 11/16/21 06:09 11/17/21 00:24 150-200 13C3 PFHxS 97 11/16/21 06:09 11/17/21 00:24 150-200 Lab Sample ID: 810-7357-2Client Sample ID: 161-Iowa River at New Plant Raw Matrix: WaterDate Collected: 11/10/21 13:40 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water RL Perfluorobutanoic acid (PFBA)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluoropentanoic acid (PFPeA)3.3 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluorohexanoic acid (PFHxA)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluoroheptanoic acid (PFHpA)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluorooctanoic acid (PFOA)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluorononanoic acid (PFNA)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluorodecanoic acid (PFDA)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluoroundecanoic acid (PFUnA)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluorododecanoic acid (PFDoA)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluorobutanesulfonic acid (PFBS)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluoropentanesulfonic acid (PFPeS) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluorohexanesulfonic acid (PFHxS)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluoroheptanesulfonic Acid (PFHpS) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluorooctanesulfonic acid (PFOS)<1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 11H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 11H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 11H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 14,8-Dioxa-3H-perfluorononanoic acid (ADONA) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 19-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 111-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluoro-4-methoxybutanoic acid (PFMBA) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Perfluoro-3-methoxypropanoic acid (PFMPA) <1.9 1.9 ng/L 11/17/21 07:35 11/18/21 00:28 1Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) <1.9 13C4 PFBA 102 50-200 11/17/21 07:35 11/18/21 00:28 1 Isotope Dilution Dil FacAnalyzedPreparedQualifierLimits%Recovery 13C5 PFPeA 133 11/17/21 07:35 11/18/21 00:28 150-200 13C5 PFHxA 113 11/17/21 07:35 11/18/21 00:28 150-200 13C4 PFHpA 105 11/17/21 07:35 11/18/21 00:28 150-200 Eurofins Eaton Analytical - South Bend Page 7 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Lab Sample ID: 810-7357-2Client Sample ID: 161-Iowa River at New Plant Raw Matrix: WaterDate Collected: 11/10/21 13:40 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) 13C8 PFOA 96 50-200 11/17/21 07:35 11/18/21 00:28 1 Isotope Dilution Dil FacAnalyzedPreparedQualifierLimits%Recovery 13C9 PFNA 96 11/17/21 07:35 11/18/21 00:28 150-200 13C6 PFDA 95 11/17/21 07:35 11/18/21 00:28 150-200 13C7 PFUnA 90 11/17/21 07:35 11/18/21 00:28 150-200 13C2 PFDoA 85 11/17/21 07:35 11/18/21 00:28 150-200 13C3 HFPO-DA 116 11/17/21 07:35 11/18/21 00:28 150-200 13C3 PFBS 107 11/17/21 07:35 11/18/21 00:28 150-200 13C8 PFOS 94 11/17/21 07:35 11/18/21 00:28 150-200 13C2-4:2-FTS 118 11/17/21 07:35 11/18/21 00:28 150-200 13C2-6:2-FTS 94 11/17/21 07:35 11/18/21 00:28 150-200 13C2-8:2-FTS 100 11/17/21 07:35 11/18/21 00:28 150-200 13C3 PFHxS 99 11/17/21 07:35 11/18/21 00:28 150-200 Lab Sample ID: 810-7357-3Client Sample ID: 162-S/EP IA River-Finished Matrix: Drinking WaterDate Collected: 11/10/21 13:22 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water RL Perfluorobutanoic acid (PFBA)3.0 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluoropentanoic acid (PFPeA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluorohexanoic acid (PFHxA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluoroheptanoic acid (PFHpA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluorooctanoic acid (PFOA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluorononanoic acid (PFNA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluorodecanoic acid (PFDA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluoroundecanoic acid (PFUnA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluorododecanoic acid (PFDoA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluorobutanesulfonic acid (PFBS)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluoropentanesulfonic acid (PFPeS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluorohexanesulfonic acid (PFHxS)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluoroheptanesulfonic Acid (PFHpS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluorooctanesulfonic acid (PFOS)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 11H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 11H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 11H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 14,8-Dioxa-3H-perfluorononanoic acid (ADONA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 19-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 111-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Perfluoro-4-methoxybutanoic acid (PFMBA) <1.8 Eurofins Eaton Analytical - South Bend Page 8 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Lab Sample ID: 810-7357-3Client Sample ID: 162-S/EP IA River-Finished Matrix: Drinking WaterDate Collected: 11/10/21 13:22 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) RL Perfluoro-3-methoxypropanoic acid (PFMPA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.8 ng/L 11/17/21 07:35 11/18/21 00:55 1Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) <1.8 13C4 PFBA 99 50-200 11/17/21 07:35 11/18/21 00:55 1 Isotope Dilution Dil FacAnalyzedPreparedQualifierLimits%Recovery 13C5 PFPeA 112 11/17/21 07:35 11/18/21 00:55 150-200 13C5 PFHxA 105 11/17/21 07:35 11/18/21 00:55 150-200 13C4 PFHpA 99 11/17/21 07:35 11/18/21 00:55 150-200 13C8 PFOA 89 11/17/21 07:35 11/18/21 00:55 150-200 13C9 PFNA 87 11/17/21 07:35 11/18/21 00:55 150-200 13C6 PFDA 90 11/17/21 07:35 11/18/21 00:55 150-200 13C7 PFUnA 85 11/17/21 07:35 11/18/21 00:55 150-200 13C2 PFDoA 78 11/17/21 07:35 11/18/21 00:55 150-200 13C3 HFPO-DA 100 11/17/21 07:35 11/18/21 00:55 150-200 13C3 PFBS 101 11/17/21 07:35 11/18/21 00:55 150-200 13C8 PFOS 97 11/17/21 07:35 11/18/21 00:55 150-200 13C2-4:2-FTS 96 11/17/21 07:35 11/18/21 00:55 150-200 13C2-6:2-FTS 84 11/17/21 07:35 11/18/21 00:55 150-200 13C2-8:2-FTS 98 11/17/21 07:35 11/18/21 00:55 150-200 13C3 PFHxS 96 11/17/21 07:35 11/18/21 00:55 150-200 Lab Sample ID: 810-7357-4Client Sample ID: 163-Site 39-Blank Matrix: Drinking WaterDate Collected: 11/10/21 13:20 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water RL Perfluorobutanoic acid (PFBA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluoropentanoic acid (PFPeA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluorohexanoic acid (PFHxA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluoroheptanoic acid (PFHpA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluorooctanoic acid (PFOA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluorononanoic acid (PFNA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluorodecanoic acid (PFDA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluoroundecanoic acid (PFUnA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluorododecanoic acid (PFDoA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluorobutanesulfonic acid (PFBS)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluoropentanesulfonic acid (PFPeS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluorohexanesulfonic acid (PFHxS)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluoroheptanesulfonic Acid (PFHpS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluorooctanesulfonic acid (PFOS)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 11H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 11H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 11H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) <1.8 Eurofins Eaton Analytical - South Bend Page 9 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Lab Sample ID: 810-7357-4Client Sample ID: 163-Site 39-Blank Matrix: Drinking WaterDate Collected: 11/10/21 13:20 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) RL Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 14,8-Dioxa-3H-perfluorononanoic acid (ADONA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 19-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 111-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluoro-4-methoxybutanoic acid (PFMBA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Perfluoro-3-methoxypropanoic acid (PFMPA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:22 1Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) <1.8 13C4 PFBA 101 50-200 11/17/21 07:35 11/18/21 01:22 1 Isotope Dilution Dil FacAnalyzedPreparedQualifierLimits%Recovery 13C5 PFPeA 101 11/17/21 07:35 11/18/21 01:22 150-200 13C5 PFHxA 107 11/17/21 07:35 11/18/21 01:22 150-200 13C4 PFHpA 105 11/17/21 07:35 11/18/21 01:22 150-200 13C8 PFOA 100 11/17/21 07:35 11/18/21 01:22 150-200 13C9 PFNA 103 11/17/21 07:35 11/18/21 01:22 150-200 13C6 PFDA 105 11/17/21 07:35 11/18/21 01:22 150-200 13C7 PFUnA 97 11/17/21 07:35 11/18/21 01:22 150-200 13C2 PFDoA 83 11/17/21 07:35 11/18/21 01:22 150-200 13C3 HFPO-DA 113 11/17/21 07:35 11/18/21 01:22 150-200 13C3 PFBS 102 11/17/21 07:35 11/18/21 01:22 150-200 13C8 PFOS 100 11/17/21 07:35 11/18/21 01:22 150-200 13C2-4:2-FTS 95 11/17/21 07:35 11/18/21 01:22 150-200 13C2-6:2-FTS 87 11/17/21 07:35 11/18/21 01:22 150-200 13C2-8:2-FTS 100 11/17/21 07:35 11/18/21 01:22 150-200 13C3 PFHxS 99 11/17/21 07:35 11/18/21 01:22 150-200 Lab Sample ID: 810-7357-5Client Sample ID: 164-Site 39-Duplicate Matrix: Drinking WaterDate Collected: 11/10/21 13:24 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water RL Perfluorobutanoic acid (PFBA)3.0 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluoropentanoic acid (PFPeA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluorohexanoic acid (PFHxA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluoroheptanoic acid (PFHpA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluorooctanoic acid (PFOA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluorononanoic acid (PFNA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluorodecanoic acid (PFDA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluoroundecanoic acid (PFUnA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluorododecanoic acid (PFDoA)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluorobutanesulfonic acid (PFBS)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluoropentanesulfonic acid (PFPeS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluorohexanesulfonic acid (PFHxS)<1.8 Eurofins Eaton Analytical - South Bend Page 10 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Lab Sample ID: 810-7357-5Client Sample ID: 164-Site 39-Duplicate Matrix: Drinking WaterDate Collected: 11/10/21 13:24 PWSID Number: IA5225079Date Received: 11/11/21 09:15 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) RL Perfluoroheptanesulfonic Acid (PFHpS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluorooctanesulfonic acid (PFOS)<1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 11H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 11H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 11H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 14,8-Dioxa-3H-perfluorononanoic acid (ADONA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 19-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 111-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluoro-4-methoxybutanoic acid (PFMBA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Perfluoro-3-methoxypropanoic acid (PFMPA) <1.8 1.8 ng/L 11/17/21 07:35 11/18/21 01:36 1Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) <1.8 13C4 PFBA 100 50-200 11/17/21 07:35 11/18/21 01:36 1 Isotope Dilution Dil FacAnalyzedPreparedQualifierLimits%Recovery 13C5 PFPeA 112 11/17/21 07:35 11/18/21 01:36 150-200 13C5 PFHxA 105 11/17/21 07:35 11/18/21 01:36 150-200 13C4 PFHpA 98 11/17/21 07:35 11/18/21 01:36 150-200 13C8 PFOA 81 11/17/21 07:35 11/18/21 01:36 150-200 13C9 PFNA 72 11/17/21 07:35 11/18/21 01:36 150-200 13C6 PFDA 75 11/17/21 07:35 11/18/21 01:36 150-200 13C7 PFUnA 77 11/17/21 07:35 11/18/21 01:36 150-200 13C2 PFDoA 80 11/17/21 07:35 11/18/21 01:36 150-200 13C3 HFPO-DA 116 11/17/21 07:35 11/18/21 01:36 150-200 13C3 PFBS 101 11/17/21 07:35 11/18/21 01:36 150-200 13C8 PFOS 98 11/17/21 07:35 11/18/21 01:36 150-200 13C2-4:2-FTS 99 11/17/21 07:35 11/18/21 01:36 150-200 13C2-6:2-FTS 86 11/17/21 07:35 11/18/21 01:36 150-200 13C2-8:2-FTS 102 11/17/21 07:35 11/18/21 01:36 150-200 13C3 PFHxS 98 11/17/21 07:35 11/18/21 01:36 150-200 Eurofins Eaton Analytical - South Bend Page 11 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Isotope Dilution Summary Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water Prep Type: Total/NAMatrix: Drinking Water Lab Sample ID Client Sample ID (50-200)(50-200)(50-200)(50-200)(50-200)(50-200)(50-200)(50-200) PFBA PFPeA 13C5PHA C4PFHA C8PFOA C9PFNA C6PFDA 13C7PUA 99 112 105 99 89 87 90 85810-7357-3 Percent Isotope Dilution Recovery (Acceptance Limits) 162-S/EP IA River-Finished 101 113 105 87100 82 84 81810-7357-3 LMS 162-S/EP IA River-Finished 101 101 107 100105 103 105 97810-7357-4 163-Site 39-Blank 100 112 105 8198 72 75 77810-7357-5 164-Site 39-Duplicate 100 99 106 100104 99 98 94LCS 810-7469/3-A Lab Control Sample 99 102 101 103103 103 104 102LLCS 810-7469/2-A Lab Control Sample 100 98 103 102105 101 102 98MB 810-7469/1-A Method Blank Lab Sample ID Client Sample ID (50-200)(50-200)(50-200)(50-200)(50-200)(50-200)(50-200)(50-200) PFDoA HFPODA C3PFBS C8PFOS 42FTS 62FTS 82FTS C3PFHS 78 100 101 97 96 84 98 96810-7357-3 Percent Isotope Dilution Recovery (Acceptance Limits) 162-S/EP IA River-Finished 79 113 103 10099 87 102 100810-7357-3 LMS 162-S/EP IA River-Finished 83 113 102 95100 87 100 99810-7357-4 163-Site 39-Blank 80 116 101 9998 86 102 98810-7357-5 164-Site 39-Duplicate 89 113 106 108102 106 104 104LCS 810-7469/3-A Lab Control Sample 98 98 107 100104 99 103 106LLCS 810-7469/2-A Lab Control Sample 90 102 107 98104 98 100 106MB 810-7469/1-A Method Blank Surrogate Legend PFBA = 13C4 PFBA PFPeA = 13C5 PFPeA 13C5PHA = 13C5 PFHxA C4PFHA = 13C4 PFHpA C8PFOA = 13C8 PFOA C9PFNA = 13C9 PFNA C6PFDA = 13C6 PFDA 13C7PUA = 13C7 PFUnA PFDoA = 13C2 PFDoA HFPODA = 13C3 HFPO-DA C3PFBS = 13C3 PFBS C8PFOS = 13C8 PFOS 42FTS = 13C2-4:2-FTS 62FTS = 13C2-6:2-FTS 82FTS = 13C2-8:2-FTS C3PFHS = 13C3 PFHxS Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water Prep Type: Total/NAMatrix: Water Lab Sample ID Client Sample ID (50-200)(50-200)(50-200)(50-200)(50-200)(50-200)(50-200)(50-200) PFBA PFPeA 13C5PHA C4PFHA C8PFOA C9PFNA C6PFDA 13C7PUA 93 112 97 94 89 88 84 80810-7357-1 Percent Isotope Dilution Recovery (Acceptance Limits) 160-Iowa River (Sand Pit) Raw 102 133 113 96105 96 95 90810-7357-2 161-Iowa River at New Plant Raw 91 89 90 9191 92 89 83LCS 810-7368/3-A Lab Control Sample 95 93 94 9695 96 94 88LLCS 810-7368/2-A Lab Control Sample 81 79 80 8281 84 84 84MB 810-7368/1-A Method Blank Eurofins Eaton Analytical - South Bend Page 12 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Isotope Dilution Summary Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) Prep Type: Total/NAMatrix: Water Lab Sample ID Client Sample ID (50-200)(50-200)(50-200)(50-200)(50-200)(50-200)(50-200)(50-200) PFDoA HFPODA C3PFBS C8PFOS 42FTS 62FTS 82FTS C3PFHS 75 95 103 96 119 103 107 97810-7357-1 Percent Isotope Dilution Recovery (Acceptance Limits) 160-Iowa River (Sand Pit) Raw 85 116 107 11894 94 100 99810-7357-2 161-Iowa River at New Plant Raw 79 106 92 8690 89 87 90LCS 810-7368/3-A Lab Control Sample 83 97 97 8994 90 91 97LLCS 810-7368/2-A Lab Control Sample 83 73 94 8692 87 92 92MB 810-7368/1-A Method Blank Surrogate Legend PFBA = 13C4 PFBA PFPeA = 13C5 PFPeA 13C5PHA = 13C5 PFHxA C4PFHA = 13C4 PFHpA C8PFOA = 13C8 PFOA C9PFNA = 13C9 PFNA C6PFDA = 13C6 PFDA 13C7PUA = 13C7 PFUnA PFDoA = 13C2 PFDoA HFPODA = 13C3 HFPO-DA C3PFBS = 13C3 PFBS C8PFOS = 13C8 PFOS 42FTS = 13C2-4:2-FTS 62FTS = 13C2-6:2-FTS 82FTS = 13C2-8:2-FTS C3PFHS = 13C3 PFHxS Eurofins Eaton Analytical - South Bend Page 13 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water Client Sample ID: Method BlankLab Sample ID: MB 810-7368/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 7443 Prep Batch: 7368 RL Perfluorobutanoic acid (PFBA)<2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluoropentanoic acid (PFPeA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluorohexanoic acid (PFHxA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluoroheptanoic acid (PFHpA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluorooctanoic acid (PFOA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluorononanoic acid (PFNA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluorodecanoic acid (PFDA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluoroundecanoic acid (PFUnA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluorododecanoic acid (PFDoA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluorobutanesulfonic acid (PFBS) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluoropentanesulfonic acid (PFPeS) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluorohexanesulfonic acid (PFHxS) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluoroheptanesulfonic Acid (PFHpS) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluorooctanesulfonic acid (PFOS) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 11H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 11H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 11H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 14,8-Dioxa-3H-perfluorononanoic acid (ADONA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 19-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 111-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluoro-4-methoxybutanoic acid (PFMBA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Perfluoro-3-methoxypropanoic acid (PFMPA) <2.0 2.0 ng/L 11/16/21 06:09 11/16/21 21:28 1Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) 13C4 PFBA 81 50-200 11/16/21 21:28 1 MB MB Isotope Dilution 11/16/21 06:09 Dil FacPreparedAnalyzedQualifierLimits%Recovery 79 11/16/21 06:09 11/16/21 21:28 113C5 PFPeA 50-200 80 11/16/21 06:09 11/16/21 21:28 113C5 PFHxA 50-200 81 11/16/21 06:09 11/16/21 21:28 113C4 PFHpA 50-200 82 11/16/21 06:09 11/16/21 21:28 113C8 PFOA 50-200 84 11/16/21 06:09 11/16/21 21:28 113C9 PFNA 50-200 84 11/16/21 06:09 11/16/21 21:28 113C6 PFDA 50-200 84 11/16/21 06:09 11/16/21 21:28 113C7 PFUnA 50-200 83 11/16/21 06:09 11/16/21 21:28 113C2 PFDoA 50-200 73 11/16/21 06:09 11/16/21 21:28 113C3 HFPO-DA 50-200 94 11/16/21 06:09 11/16/21 21:28 113C3 PFBS 50-200 92 11/16/21 06:09 11/16/21 21:28 113C8 PFOS 50-200 Eurofins Eaton Analytical - South Bend Page 14 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) Client Sample ID: Method BlankLab Sample ID: MB 810-7368/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 7443 Prep Batch: 7368 13C2-4:2-FTS 86 50-200 11/16/21 21:28 1 MB MB Isotope Dilution 11/16/21 06:09 Dil FacPreparedAnalyzedQualifierLimits%Recovery 87 11/16/21 06:09 11/16/21 21:28 113C2-6:2-FTS 50-200 92 11/16/21 06:09 11/16/21 21:28 113C2-8:2-FTS 50-200 92 11/16/21 06:09 11/16/21 21:28 113C3 PFHxS 50-200 Client Sample ID: Lab Control SampleLab Sample ID: LCS 810-7368/3-A Matrix: Water Prep Type: Total/NA Analysis Batch: 7443 Prep Batch: 7368 Perfluorobutanoic acid (PFBA)193 192 ng/L 99 70-130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Perfluoropentanoic acid (PFPeA)193 191 ng/L 99 70-130 Perfluorohexanoic acid (PFHxA)193 191 ng/L 99 70-130 Perfluoroheptanoic acid (PFHpA)193 190 ng/L 98 70-130 Perfluorooctanoic acid (PFOA)193 190 ng/L 98 70-130 Perfluorononanoic acid (PFNA)193 192 ng/L 99 70-130 Perfluorodecanoic acid (PFDA)193 191 ng/L 99 70-130 Perfluoroundecanoic acid (PFUnA) 193 191 ng/L 99 70-130 Perfluorododecanoic acid (PFDoA) 193 194 ng/L 100 70-130 Perfluorobutanesulfonic acid (PFBS) 172 171 ng/L 100 70-130 Perfluoropentanesulfonic acid (PFPeS) 182 184 ng/L 101 70-130 Perfluorohexanesulfonic acid (PFHxS) 176 177 ng/L 101 70-130 Perfluoroheptanesulfonic Acid (PFHpS) 184 183 ng/L 99 70-130 Perfluorooctanesulfonic acid (PFOS) 179 176 ng/L 98 70-130 Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) 172 172 ng/L 100 70-130 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) 181 183 ng/L 101 70-130 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) 184 181 ng/L 98 70-130 1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) 186 187 ng/L 101 70-130 Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) 193 170 ng/L 88 70-130 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 183 181 ng/L 99 70-130 9-Chlorohexadecafluoro-3-oxan onane-1-sulfonic acid 181 173 ng/L 96 70-130 11-Chloroeicosafluoro-3-oxaund ecane-1-sulfonic acid 183 159 ng/L 87 70-130 Perfluoro-4-methoxybutanoic acid (PFMBA) 193 187 ng/L 97 70-130 Perfluoro-3-methoxypropanoic acid (PFMPA) 193 188 ng/L 97 70-130 Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) 193 209 ng/L 108 70-130 Eurofins Eaton Analytical - South Bend Page 15 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) 13C4 PFBA 50 -200 Isotope Dilution 91 LCS LCS Qualifier Limits%Recovery 8913C5 PFPeA 50 -200 9013C5 PFHxA 50 -200 9113C4 PFHpA 50 -200 9113C8 PFOA 50 -200 9213C9 PFNA 50 -200 8913C6 PFDA 50 -200 8313C7 PFUnA 50 -200 7913C2 PFDoA 50 -200 10613C3 HFPO-DA 50 -200 9213C3 PFBS 50 -200 9013C8 PFOS 50 -200 8613C2-4:2-FTS 50 -200 8913C2-6:2-FTS 50 -200 8713C2-8:2-FTS 50 -200 9013C3 PFHxS 50 -200 Client Sample ID: Lab Control SampleLab Sample ID: LLCS 810-7368/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 7443 Prep Batch: 7368 Perfluorobutanoic acid (PFBA)1.86 1.64 J ng/L 88 50-150 Analyte LLCS LLCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Perfluoropentanoic acid (PFPeA)1.86 1.74 J ng/L 94 50-150 Perfluorohexanoic acid (PFHxA)1.86 1.59 J ng/L 85 50-150 Perfluoroheptanoic acid (PFHpA)1.86 1.58 J ng/L 85 50-150 Perfluorooctanoic acid (PFOA)1.86 1.57 J ng/L 85 50-150 Perfluorononanoic acid (PFNA)1.86 1.58 J ng/L 85 50-150 Perfluorodecanoic acid (PFDA)1.86 1.63 J ng/L 87 50-150 Perfluoroundecanoic acid (PFUnA) 1.86 1.57 J ng/L 85 50-150 Perfluorododecanoic acid (PFDoA) 1.86 1.65 J ng/L 89 50-150 Perfluorobutanesulfonic acid (PFBS) 1.65 1.37 J ng/L 83 50-150 Perfluoropentanesulfonic acid (PFPeS) 1.75 1.42 J ng/L 81 50-150 Perfluorohexanesulfonic acid (PFHxS) 1.70 1.41 J ng/L 83 50-150 Perfluoroheptanesulfonic Acid (PFHpS) 1.78 1.49 J ng/L 84 50-150 Perfluorooctanesulfonic acid (PFOS) 1.73 1.54 J ng/L 89 50-150 Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) 1.66 1.37 J ng/L 83 50-150 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) 1.75 1.56 J ng/L 90 50-150 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) 1.77 1.51 J ng/L 85 50-150 1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) 1.79 1.56 J ng/L 87 50-150 Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) 1.86 1.62 J ng/L 87 50-150 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 1.76 1.47 J ng/L 84 50-150 Eurofins Eaton Analytical - South Bend Page 16 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LLCS 810-7368/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 7443 Prep Batch: 7368 9-Chlorohexadecafluoro-3-oxan onane-1-sulfonic acid 1.74 1.46 J ng/L 84 50-150 Analyte LLCS LLCS DUnitResultQualifier %Rec Spike Added %Rec. Limits 11-Chloroeicosafluoro-3-oxaund ecane-1-sulfonic acid 1.76 1.35 J ng/L 77 50-150 Perfluoro-4-methoxybutanoic acid (PFMBA) 1.86 1.55 J ng/L 83 50-150 Perfluoro-3-methoxypropanoic acid (PFMPA) 1.86 1.51 J ng/L 81 50-150 Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) 1.86 1.65 J ng/L 89 50-150 13C4 PFBA 50 -200 Isotope Dilution 95 LLCS LLCS Qualifier Limits%Recovery 9313C5 PFPeA 50 -200 9413C5 PFHxA 50 -200 9513C4 PFHpA 50 -200 9613C8 PFOA 50 -200 9613C9 PFNA 50 -200 9413C6 PFDA 50 -200 8813C7 PFUnA 50 -200 8313C2 PFDoA 50 -200 9713C3 HFPO-DA 50 -200 9713C3 PFBS 50 -200 9413C8 PFOS 50 -200 8913C2-4:2-FTS 50 -200 9013C2-6:2-FTS 50 -200 9113C2-8:2-FTS 50 -200 9713C3 PFHxS 50 -200 Client Sample ID: Method BlankLab Sample ID: MB 810-7469/1-A Matrix: Drinking Water Prep Type: Total/NA Analysis Batch: 7539 Prep Batch: 7469 RL Perfluorobutanoic acid (PFBA)<2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluoropentanoic acid (PFPeA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluorohexanoic acid (PFHxA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluoroheptanoic acid (PFHpA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluorooctanoic acid (PFOA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluorononanoic acid (PFNA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluorodecanoic acid (PFDA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluoroundecanoic acid (PFUnA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluorododecanoic acid (PFDoA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluorobutanesulfonic acid (PFBS) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluoropentanesulfonic acid (PFPeS) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluorohexanesulfonic acid (PFHxS) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluoroheptanesulfonic Acid (PFHpS) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluorooctanesulfonic acid (PFOS) Eurofins Eaton Analytical - South Bend Page 17 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) Client Sample ID: Method BlankLab Sample ID: MB 810-7469/1-A Matrix: Drinking Water Prep Type: Total/NA Analysis Batch: 7539 Prep Batch: 7469 RL Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 11H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 11H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 11H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 14,8-Dioxa-3H-perfluorononanoic acid (ADONA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 19-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 111-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluoro-4-methoxybutanoic acid (PFMBA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Perfluoro-3-methoxypropanoic acid (PFMPA) <2.0 2.0 ng/L 11/17/21 07:35 11/17/21 20:52 1Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) 13C4 PFBA 100 50-200 11/17/21 20:52 1 MB MB Isotope Dilution 11/17/21 07:35 Dil FacPreparedAnalyzedQualifierLimits%Recovery 98 11/17/21 07:35 11/17/21 20:52 113C5 PFPeA 50-200 103 11/17/21 07:35 11/17/21 20:52 113C5 PFHxA 50-200 105 11/17/21 07:35 11/17/21 20:52 113C4 PFHpA 50-200 102 11/17/21 07:35 11/17/21 20:52 113C8 PFOA 50-200 101 11/17/21 07:35 11/17/21 20:52 113C9 PFNA 50-200 102 11/17/21 07:35 11/17/21 20:52 113C6 PFDA 50-200 98 11/17/21 07:35 11/17/21 20:52 113C7 PFUnA 50-200 90 11/17/21 07:35 11/17/21 20:52 113C2 PFDoA 50-200 102 11/17/21 07:35 11/17/21 20:52 113C3 HFPO-DA 50-200 107 11/17/21 07:35 11/17/21 20:52 113C3 PFBS 50-200 104 11/17/21 07:35 11/17/21 20:52 113C8 PFOS 50-200 98 11/17/21 07:35 11/17/21 20:52 113C2-4:2-FTS 50-200 98 11/17/21 07:35 11/17/21 20:52 113C2-6:2-FTS 50-200 100 11/17/21 07:35 11/17/21 20:52 113C2-8:2-FTS 50-200 106 11/17/21 07:35 11/17/21 20:52 113C3 PFHxS 50-200 Client Sample ID: Lab Control SampleLab Sample ID: LCS 810-7469/3-A Matrix: Drinking Water Prep Type: Total/NA Analysis Batch: 7539 Prep Batch: 7469 Perfluorobutanoic acid (PFBA)401 406 ng/L 101 70-130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Perfluoropentanoic acid (PFPeA)401 406 ng/L 101 70-130 Perfluorohexanoic acid (PFHxA)401 401 ng/L 100 70-130 Perfluoroheptanoic acid (PFHpA)401 404 ng/L 101 70-130 Perfluorooctanoic acid (PFOA)401 407 ng/L 101 70-130 Perfluorononanoic acid (PFNA)401 407 ng/L 101 70-130 Eurofins Eaton Analytical - South Bend Page 18 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 810-7469/3-A Matrix: Drinking Water Prep Type: Total/NA Analysis Batch: 7539 Prep Batch: 7469 Perfluorodecanoic acid (PFDA)401 405 ng/L 101 70-130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Perfluoroundecanoic acid (PFUnA) 401 411 ng/L 102 70-130 Perfluorododecanoic acid (PFDoA) 401 408 ng/L 102 70-130 Perfluorobutanesulfonic acid (PFBS) 356 355 ng/L 100 70-130 Perfluoropentanesulfonic acid (PFPeS) 377 379 ng/L 100 70-130 Perfluorohexanesulfonic acid (PFHxS) 366 371 ng/L 101 70-130 Perfluoroheptanesulfonic Acid (PFHpS) 383 389 ng/L 102 70-130 Perfluorooctanesulfonic acid (PFOS) 372 378 ng/L 102 70-130 Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) 358 357 ng/L 100 70-130 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) 376 390 ng/L 104 70-130 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) 382 387 ng/L 101 70-130 1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) 385 394 ng/L 102 70-130 Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) 401 374 ng/L 93 70-130 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 379 376 ng/L 99 70-130 9-Chlorohexadecafluoro-3-oxan onane-1-sulfonic acid 375 371 ng/L 99 70-130 11-Chloroeicosafluoro-3-oxaund ecane-1-sulfonic acid 379 358 ng/L 95 70-130 Perfluoro-4-methoxybutanoic acid (PFMBA) 401 396 ng/L 99 70-130 Perfluoro-3-methoxypropanoic acid (PFMPA) 401 394 ng/L 98 70-130 Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) 401 402 ng/L 100 70-130 13C4 PFBA 50 -200 Isotope Dilution 100 LCS LCS Qualifier Limits%Recovery 9913C5 PFPeA 50 -200 10613C5 PFHxA 50 -200 10413C4 PFHpA 50 -200 10013C8 PFOA 50 -200 9913C9 PFNA 50 -200 9813C6 PFDA 50 -200 9413C7 PFUnA 50 -200 8913C2 PFDoA 50 -200 11313C3 HFPO-DA 50 -200 10613C3 PFBS 50 -200 10213C8 PFOS 50 -200 10813C2-4:2-FTS 50 -200 10613C2-6:2-FTS 50 -200 Eurofins Eaton Analytical - South Bend Page 19 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 810-7469/3-A Matrix: Drinking Water Prep Type: Total/NA Analysis Batch: 7539 Prep Batch: 7469 13C2-8:2-FTS 50 -200 Isotope Dilution 104 LCS LCS Qualifier Limits%Recovery 10413C3 PFHxS 50 -200 Client Sample ID: Lab Control SampleLab Sample ID: LLCS 810-7469/2-A Matrix: Drinking Water Prep Type: Total/NA Analysis Batch: 7539 Prep Batch: 7469 Perfluorobutanoic acid (PFBA)1.87 1.65 J ng/L 88 50-150 Analyte LLCS LLCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Perfluoropentanoic acid (PFPeA)1.87 1.80 J ng/L 96 50-150 Perfluorohexanoic acid (PFHxA)1.87 1.67 J ng/L 89 50-150 Perfluoroheptanoic acid (PFHpA)1.87 1.61 J ng/L 86 50-150 Perfluorooctanoic acid (PFOA)1.87 1.66 J ng/L 89 50-150 Perfluorononanoic acid (PFNA)1.87 1.66 J ng/L 89 50-150 Perfluorodecanoic acid (PFDA)1.87 1.69 J ng/L 91 50-150 Perfluoroundecanoic acid (PFUnA) 1.87 1.62 J ng/L 87 50-150 Perfluorododecanoic acid (PFDoA) 1.87 1.71 J ng/L 92 50-150 Perfluorobutanesulfonic acid (PFBS) 1.66 1.46 J ng/L 88 50-150 Perfluoropentanesulfonic acid (PFPeS) 1.76 1.63 J ng/L 93 50-150 Perfluorohexanesulfonic acid (PFHxS) 1.70 1.47 J ng/L 86 50-150 Perfluoroheptanesulfonic Acid (PFHpS) 1.78 1.51 J ng/L 85 50-150 Perfluorooctanesulfonic acid (PFOS) 1.73 1.53 J ng/L 88 50-150 Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) 1.67 1.46 J ng/L 88 50-150 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) 1.75 1.50 J ng/L 86 50-150 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) 1.78 1.65 J ng/L 93 50-150 1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) 1.79 1.56 J ng/L 87 50-150 Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) 1.87 1.55 J ng/L 83 50-150 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 1.77 1.56 J ng/L 88 50-150 9-Chlorohexadecafluoro-3-oxan onane-1-sulfonic acid 1.74 1.57 J ng/L 90 50-150 11-Chloroeicosafluoro-3-oxaund ecane-1-sulfonic acid 1.76 1.45 J ng/L 82 50-150 Perfluoro-4-methoxybutanoic acid (PFMBA) 1.87 1.52 J ng/L 82 50-150 Perfluoro-3-methoxypropanoic acid (PFMPA) 1.87 1.57 J ng/L 84 50-150 Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) 1.87 1.65 J ng/L 89 50-150 Eurofins Eaton Analytical - South Bend Page 20 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) 13C4 PFBA 50 -200 Isotope Dilution 99 LLCS LLCS Qualifier Limits%Recovery 10213C5 PFPeA 50 -200 10113C5 PFHxA 50 -200 10313C4 PFHpA 50 -200 10313C8 PFOA 50 -200 10313C9 PFNA 50 -200 10413C6 PFDA 50 -200 10213C7 PFUnA 50 -200 9813C2 PFDoA 50 -200 9813C3 HFPO-DA 50 -200 10713C3 PFBS 50 -200 10413C8 PFOS 50 -200 10013C2-4:2-FTS 50 -200 9913C2-6:2-FTS 50 -200 10313C2-8:2-FTS 50 -200 10613C3 PFHxS 50 -200 Client Sample ID: 162-S/EP IA River-FinishedLab Sample ID: 810-7357-3 LMS Matrix: Drinking Water Prep Type: Total/NA Analysis Batch: 7539 Prep Batch: 7469 Perfluorobutanoic acid (PFBA)3.0 1.87 4.50 ng/L 80 50-150 Analyte LMS LMS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec. Limits Perfluoropentanoic acid (PFPeA)<1.8 1.87 2.68 ng/L 83 50-150 Perfluorohexanoic acid (PFHxA)<1.8 1.87 2.19 ng/L 84 50-150 Perfluoroheptanoic acid (PFHpA)<1.8 1.87 1.90 ng/L 86 50-150 Perfluorooctanoic acid (PFOA)<1.8 1.87 2.73 ng/L 85 50-150 Perfluorononanoic acid (PFNA)<1.8 1.87 1.85 J ng/L 85 50-150 Perfluorodecanoic acid (PFDA)<1.8 1.87 1.65 J ng/L 88 50-150 Perfluoroundecanoic acid (PFUnA) <1.8 1.87 1.75 J ng/L 94 50-150 Perfluorododecanoic acid (PFDoA) <1.8 1.87 1.73 J ng/L 80 50-150 Perfluorobutanesulfonic acid (PFBS) <1.8 1.66 2.57 ng/L 80 50-150 Perfluoropentanesulfonic acid (PFPeS) <1.8 1.76 1.53 J ng/L 87 50-150 Perfluorohexanesulfonic acid (PFHxS) <1.8 1.71 1.76 J ng/L 77 50-150 Perfluoroheptanesulfonic Acid (PFHpS) <1.8 1.79 1.50 J ng/L 84 50-150 Perfluorooctanesulfonic acid (PFOS) <1.8 1.74 2.39 ng/L 82 50-150 Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) <1.8 1.67 1.40 J ng/L 84 50-150 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) <1.8 1.76 1.47 J ng/L 84 50-150 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) <1.8 1.78 1.72 J ng/L 96 50-150 1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS) <1.8 1.80 1.65 J ng/L 92 50-150 Hexafluoropropylene Oxide Dimer Acid (HFPO-DA) <1.8 1.87 1.43 J ng/L 76 50-150 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) <1.8 1.77 1.51 J ng/L 85 50-150 Eurofins Eaton Analytical - South Bend Page 21 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method: 533 - Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water (Continued) Client Sample ID: 162-S/EP IA River-FinishedLab Sample ID: 810-7357-3 LMS Matrix: Drinking Water Prep Type: Total/NA Analysis Batch: 7539 Prep Batch: 7469 9-Chlorohexadecafluoro-3-oxan onane-1-sulfonic acid <1.8 1.75 1.58 J ng/L 90 50-150 Analyte LMS LMS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec. Limits 11-Chloroeicosafluoro-3-oxaund ecane-1-sulfonic acid <1.8 1.77 1.38 J ng/L 78 50-150 Perfluoro-4-methoxybutanoic acid (PFMBA) <1.8 1.87 1.55 J ng/L 83 50-150 Perfluoro-3-methoxypropanoic acid (PFMPA) <1.8 1.87 1.81 J ng/L 96 50-150 Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) <1.8 1.87 2.05 ng/L 109 50-150 13C4 PFBA 50 -200 Isotope Dilution 101 LMS LMS Qualifier Limits%Recovery 11313C5 PFPeA 50 -200 10513C5 PFHxA 50 -200 10013C4 PFHpA 50 -200 8713C8 PFOA 50 -200 8213C9 PFNA 50 -200 8413C6 PFDA 50 -200 8113C7 PFUnA 50 -200 7913C2 PFDoA 50 -200 11313C3 HFPO-DA 50 -200 10313C3 PFBS 50 -200 9913C8 PFOS 50 -200 10013C2-4:2-FTS 50 -200 8713C2-6:2-FTS 50 -200 10213C2-8:2-FTS 50 -200 10013C3 PFHxS 50 -200 Eurofins Eaton Analytical - South Bend Page 22 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 LCMS Prep Batch: 7368 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 533810-7357-1 160-Iowa River (Sand Pit) Raw Total/NA Water 533MB 810-7368/1-A Method Blank Total/NA Water 533LCS 810-7368/3-A Lab Control Sample Total/NA Water 533LLCS 810-7368/2-A Lab Control Sample Total/NA Analysis Batch: 7443 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 533 7368810-7357-1 160-Iowa River (Sand Pit) Raw Total/NA Water 533 7368MB 810-7368/1-A Method Blank Total/NA Water 533 7368LCS 810-7368/3-A Lab Control Sample Total/NA Water 533 7368LLCS 810-7368/2-A Lab Control Sample Total/NA Prep Batch: 7469 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 533810-7357-2 161-Iowa River at New Plant Raw Total/NA Drinking Water 533810-7357-3 162-S/EP IA River-Finished Total/NA Drinking Water 533810-7357-4 163-Site 39-Blank Total/NA Drinking Water 533810-7357-5 164-Site 39-Duplicate Total/NA Drinking Water 533MB 810-7469/1-A Method Blank Total/NA Drinking Water 533LCS 810-7469/3-A Lab Control Sample Total/NA Drinking Water 533LLCS 810-7469/2-A Lab Control Sample Total/NA Drinking Water 533810-7357-3 LMS 162-S/EP IA River-Finished Total/NA Analysis Batch: 7539 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 533 7469810-7357-2 161-Iowa River at New Plant Raw Total/NA Drinking Water 533 7469810-7357-3 162-S/EP IA River-Finished Total/NA Drinking Water 533 7469810-7357-4 163-Site 39-Blank Total/NA Drinking Water 533 7469810-7357-5 164-Site 39-Duplicate Total/NA Drinking Water 533 7469MB 810-7469/1-A Method Blank Total/NA Drinking Water 533 7469LCS 810-7469/3-A Lab Control Sample Total/NA Drinking Water 533 7469LLCS 810-7469/2-A Lab Control Sample Total/NA Drinking Water 533 7469810-7357-3 LMS 162-S/EP IA River-Finished Total/NA Eurofins Eaton Analytical - South Bend Page 23 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Iowa Department of Natural Resources Job ID: 810-7357-1 Project/Site: PFC18 Client Sample ID: 160-Iowa River (Sand Pit) Raw Lab Sample ID: 810-7357-1 Matrix: WaterDate Collected: 11/10/21 13:55 Date Received: 11/11/21 09:15 Prep 533 11/16/21 06:09 CM7368 EA SB Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 533 1 7443 11/17/21 00:24 CM EA SBTotal/NA Client Sample ID: 161-Iowa River at New Plant Raw Lab Sample ID: 810-7357-2 Matrix: WaterDate Collected: 11/10/21 13:40 Date Received: 11/11/21 09:15 Prep 533 11/17/21 07:35 TR7469 EA SB Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 533 1 7539 11/18/21 00:28 CM EA SBTotal/NA Client Sample ID: 162-S/EP IA River-Finished Lab Sample ID: 810-7357-3 Matrix: Drinking WaterDate Collected: 11/10/21 13:22 Date Received: 11/11/21 09:15 Prep 533 11/17/21 07:35 TR7469 EA SB Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 533 1 7539 11/18/21 00:55 CM EA SBTotal/NA Client Sample ID: 163-Site 39-Blank Lab Sample ID: 810-7357-4 Matrix: Drinking WaterDate Collected: 11/10/21 13:20 Date Received: 11/11/21 09:15 Prep 533 11/17/21 07:35 TR7469 EA SB Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 533 1 7539 11/18/21 01:22 CM EA SBTotal/NA Client Sample ID: 164-Site 39-Duplicate Lab Sample ID: 810-7357-5 Matrix: Drinking WaterDate Collected: 11/10/21 13:24 Date Received: 11/11/21 09:15 Prep 533 11/17/21 07:35 TR7469 EA SB Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 533 1 7539 11/18/21 01:36 CM EA SBTotal/NA Laboratory References: EA SB = Eurofins Eaton Analytical - South Bend, 110 S Hill Street, South Bend, IN 46617, TEL (574)233-4777 Eurofins Eaton Analytical - South Bend Page 24 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: Iowa Department of Natural Resources Job ID: 810-7357-1 Project/Site: PFC18 Laboratory: Eurofins Eaton Analytical - South Bend The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date A2LA ISO/IEC 17025 5794.01 07-31-22 Iowa State IA Lab #098 11-01-21 * Eurofins Eaton Analytical - South Bend * Accreditation/Certification renewal pending - accreditation/certification considered valid. Page 25 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Method Summary Job ID: 810-7357-1Client: Iowa Department of Natural Resources Project/Site: PFC18 Method Method Description LaboratoryProtocol EPA533Perfluorinated and Polyfluorinated Alkyl Substances in Drinking Water EA SB EPA533Extraction of Perfluorinated and Polyfluorinated Alkyl Acids EA SB Protocol References: EPA = US Environmental Protection Agency Laboratory References: EA SB = Eurofins Eaton Analytical - South Bend, 110 S Hill Street, South Bend, IN 46617, TEL (574)233-4777 Eurofins Eaton Analytical - South Bend Page 26 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Sample Summary Client: Iowa Department of Natural Resources Job ID: 810-7357-1 Project/Site: PFC18 Lab Sample ID Client Sample ID Matrix Collected Received PWSID Number 810-7357-1 160-Iowa River (Sand Pit) Raw Water 11/10/21 13:55 11/11/21 09:15 IA5225079 810-7357-2 161-Iowa River at New Plant Raw Water 11/10/21 13:40 11/11/21 09:15 IA5225079 810-7357-3 162-S/EP IA River-Finished Drinking Water 11/10/21 13:22 11/11/21 09:15 IA5225079 810-7357-4 163-Site 39-Blank Drinking Water 11/10/21 13:20 11/11/21 09:15 IA5225079 810-7357-5 164-Site 39-Duplicate Drinking Water 11/10/21 13:24 11/11/21 09:15 IA5225079 Eurofins Eaton Analytical - South BendPage 27 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 28 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Login Sample Receipt Checklist Client: Iowa Department of Natural Resources Job Number: 810-7357-1 Login Number: 7357 Question Answer Comment Creator: Spurgeon, Sheri List Source: Eurofins Eaton Analytical - South Bend List Number: 1 TrueThe cooler's custody seal, if present, is intact. TrueSample custody seals, if present, are intact. TrueSamples were received on ice. TrueCooler Temperature is acceptable. TrueCooler Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueThere are no discrepancies between the containers received and the COC. TrueSamples are received within Holding Time (excluding tests with immediate HTs) TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4"). TrueSamples do not require splitting or compositing. TrueContainer provided by EEA Eurofins Eaton Analytical - South Bend Page 29 of 29 12/2/2021 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15