PFAS Sample Results.pdf

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This is an analytical laboratory report documenting per- and polyfluoroalkyl substances (PFAS) testing for water samples collected from Toledo Air National Guard Base's overflow tank.

The report, generated by Eurofins Cleveland on May 20, 2025, presents results from EPA Method 1633 analysis of four water samples (T-1-2, M-1-2, B-1-2, and FB-1-2) collected on April 30, 2025. Three of the four samples—the main tank samples and middle samples—contained significant PFAS contamination, with detected analytes including perfluorooctanoic acid (PFOA) ranging from 1,200-1,300 ng/L, perfluorohexanesulfonic acid (PFHxS) ranging from 4,800-5,000 ng/L, and perfluorooctanesulfonic acid (PFOS) at approximately 38,000-43,000 ng/L. The field blank sample (FB-1-2) showed no detections across all analytes. The testing involved multiple analytical batches with dilution factors up to 10x and included comprehensive quality control measures with laboratory control samples, method blanks, and isotope dilution recovery assessments. The report notes several QC exceptions during analysis, including high-biased recoveries in continuing calibration verifications and isotope dilution analytes, though these were reported with appropriate qualifiers. Chain of custody documentation confirms proper sample handling and custody transfers throughout the analysis process. Eurofins Cleveland maintains Oregon NELAP accreditation (ID 4062, expiring 02-27-26) applicable to this testing.

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ANALYTICAL REPORT

PREPARED FOR

Attn: Stymie Doolan

Toledo Air National Guard Base 2660 S. Eber Road 180th Fighter Wing

Swanton, Ohio 43558 Generated 5/20/2025 10:47:09 AM

JOB DESCRIPTION

Overflow Tank

JOB NUMBER

240-223402-1

See page two for job notes and contact information.

Barberton OH 44203 180 S. Van Buren Avenue Eurofins Cleveland https://eol.et.eurofinsus.com/myEOL/

Eurofins Cleveland

Eurofins Cleveland is a laboratory within Eurofins Environment Testing North Central, LLC, a company within Eurofins Environment Testing Group of Companies

Job Notes This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins Environment Testing North Central, LLC Project Manager.

Authorization

Generated

5/20/2025 10:47:09 AM

Authorized for release by Brandon Matthews, Project Manager I Brandon.Matthews@et.eurofinsus.com (330)966-9268

Page 2 of 48 5/20/2025

Table of Contents

Client: Toledo Air National Guard Base Project/Site: Overflow Tank

Laboratory Job ID: 240-223402-1

Eurofins Cleveland

5/20/2025

Cover Page

Table of Contents

Definitions/Glossary

Case Narrative

Method Summary

Sample Summary

Detection Summary

Client Sample Results

QC Sample Results

QC Association Summary

Lab Chronicle

Certification Summary

Chain of Custody

Isotope Dilution Summary

Definitions/Glossary Job ID: 240-223402-1Client: Toledo Air National Guard Base

Project/Site: Overflow Tank

Qualifiers

LCMS

Qualifier Description

*+ LCS and/or LCSD is outside acceptance limits, high biased.

Qualifier

*5+ Isotope dilution analyte is outside acceptance limits, high biased.

I Value is EMPC (estimated maximum possible concentration).

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 Cleveland

Page 4 of 48 5/20/2025

Job Narrative 240-223402-1

Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary Page unless otherwise noted under the individual analysis. Data qualifiers and/or narrative comments are included to explain any exceptions, if applicable.

· Matrix QC may not be reported if insufficient sample is provided or site-specific QC samples were not submitted. In these situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD may be performed, unless otherwise specified in the method.

· Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are confirmed unless attributed to a dilution or otherwise noted in the narrative.

Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits.

Receipt The samples were received on 5/1/2025 8:00 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 time was 1.5°C.

PFAS

Method 1633_Final: Sample(s) diluted to 25mL due to suspecting high AFFF readings. Laboratory proceeded with analysis.

T-1-2 (240-223402-1), M-1-2 (240-223402-2), B-1-2 (240-223402-3) and FB-1-2 (240-223402-4)

Method 1633_Final: The low level continuing calibration verification (CCVL) associated with batch 240-654821 recovered above the upper control limit for selected analytes. The samples associated with this CCV were non-detects for the affected analytes;

therefore, the data have been reported.

Method 1633_Final: The continuing calibration verification (CCV) associated with batch 240-654821 recovered above the upper control limit for selected analytes. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported. The associated samples are:T-1-2 (240-223402-1), M-1-2 (240-223402-2), B-1-2 (240-223402-3) and

FB-1-2 (240-223402-4).

Method 1633_Final: The low level laboratory control sample (LLCS) for preparation batch 240-654497 and analytical batch 240-654821 recovered outside control limits for selected analytes. These analytes were biased high in the LLCS and were not detected in the associated samples; therefore, the data have been reported.

Method 1633_Final: Isotope Dilution Analyte (IDA) recovery is above the method recommended limit for the following sample:

FB-1-2 (240-223402-4). Quantitation by isotope dilution generally precludes any adverse effect on data quality due to elevated IDA recoveries.

Method 1633_Final: The continuing calibration verification (CCV) recovered outside of control limits for IDA compound(s) (flagged).

Section 14.3.3 of the finalized EPA 1633 states that the recovery of target analytes for the CCV must be within 70 - 130%, unless the analyte is not of concern for a given project. Since target analyte(s) associated with this IDA are within spec, data is reported.

The following sample is impacted: FB-1-2 (240-223402-4).

Method 1633_Final: Isotope Dilution Analyte (IDA) recovery is above the method recommended limit for the CCB associated with the following sample: FB-1-2 (240-223402-4). Quantitation by isotope dilution generally precludes any adverse effect on data quality due to elevated IDA recoveries.

Method 1633_Final: Sample(s) re-prepped due to 6:2 FTS failure in LLCS of previous batch. Sample(s) re-extracted at 10x dilution.

Laboratory proceeded with re-analysis.

T-1-2 (240-223402-1), M-1-2 (240-223402-2) and B-1-2 (240-223402-3)

No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.

Case Narrative Client: Toledo Air National Guard Base Job ID: 240-223402-1 Project: Overflow Tank

Eurofins Cleveland

Job ID: 240-223402-1 Eurofins Cleveland

Page 5 of 48 5/20/2025

Method Summary

Project/Site: Overflow Tank

Method Method Description LaboratoryProtocol

EPA1633 Per- and Polyfluoroalkyl Substances by LC/MS/MS EET CLE

EPA1633 Solid-Phase Extraction (SPE) EET CLE

Protocol References:

EPA = US Environmental Protection Agency

Laboratory References:

EET CLE = Eurofins Cleveland, 180 S. Van Buren Avenue, Barberton, OH 44203, TEL (330)497-9396

Eurofins Cleveland

Page 6 of 48 5/20/2025

Sample Summary Client: Toledo Air National Guard Base Job ID: 240-223402-1

Project/Site: Overflow Tank

Lab Sample ID Client Sample ID Matrix Collected Received

240-223402-1 T-1-2 Water 04/30/25 13:27 05/01/25 08:00

240-223402-2 M-1-2 Water 04/30/25 13:23 05/01/25 08:00

240-223402-3 B-1-2 Water 04/30/25 13:13 05/01/25 08:00

240-223402-4 FB-1-2 Water 04/30/25 13:29 05/01/25 08:00

Eurofins Cleveland Page 7 of 48 5/20/2025

Detection Summary

Project/Site: Overflow Tank

Client Sample ID: T-1-2 Lab Sample ID: 240-223402-1

Perfluorobutanoic acid (PFBA)

RL

20 ng/L

MDLAnalyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA1500 1633

Perfluoropentanoic acid (PFPeA) 10 ng/L Total/NA1990 1633

Perfluorohexanoic acid (PFHxA) 10 ng/L Total/NA14900 1633

Perfluoroheptanoic acid (PFHpA) 10 ng/L Total/NA1540 1633

Perfluorooctanoic acid (PFOA) 10 ng/L Total/NA11300 1633

Perfluorononanoic acid (PFNA) 10 ng/L Total/NA1160 1633

Perfluorodecanoic acid (PFDA) 10 ng/L Total/NA166 1633

Perfluoroundecanoic acid (PFUnA) 10 ng/L Total/NA110 1633

Perfluorobutanesulfonic acid (PFBS) 10 ng/L Total/NA1260 1633

Perfluoropentanesulfonic acid

(PFPeS)

10 ng/L Total/NA1330 1633

Perfluorohexanesulfonic acid (PFHxS) 10 ng/L Total/NA15000 1633

Perfluoroheptanesulfonic acid

(PFHpS)

10 ng/L Total/NA1680 1633

Perfluorononanesulfonic acid (PFNS) 10 ng/L Total/NA117 1633

1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)

20 ng/L Total/NA129 1633

1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS)

20 ng/L Total/NA13000 1633

Perfluorooctanesulfonamide (PFOSA) 10 ng/L Total/NA192 1633

N-ethylperfluorooctanesulfonamidoac etic acid (NEtFOSAA)

10 ng/L Total/NA115 1633

3-Perfluoropentylpropanoic acid (5:3

FTCA)

50 ng/L Total/NA1720 1633

3-Perfluoroheptylpropanoic acid (7:3

FTCA)

50 ng/L Total/NA157 1633

Perfluorooctanesulfonic acid (PFOS) -

DL

100 ng/L Total/NA1043000 1633

1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) - DL

400 ng/L Total/NA1029000 1633

Client Sample ID: M-1-2 Lab Sample ID: 240-223402-2

Perfluorobutanoic acid (PFBA)

RL

20 ng/L

MDLAnalyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA1520 1633

Perfluoropentanoic acid (PFPeA) 10 ng/L Total/NA1980 1633

Perfluorohexanoic acid (PFHxA) 10 ng/L Total/NA15000 1633

Perfluoroheptanoic acid (PFHpA) 10 ng/L Total/NA1570 1633

Perfluorooctanoic acid (PFOA) 10 ng/L Total/NA11300 1633

Perfluorononanoic acid (PFNA) 10 ng/L Total/NA1170 1633

Perfluorodecanoic acid (PFDA) 10 ng/L Total/NA182 1633

Perfluoroundecanoic acid (PFUnA) 10 ng/L Total/NA115 1633

Perfluorobutanesulfonic acid (PFBS) 10 ng/L Total/NA1250 1633

Perfluoropentanesulfonic acid

(PFPeS)

10 ng/L Total/NA1330 1633

Perfluorohexanesulfonic acid (PFHxS) 10 ng/L Total/NA14800 1633

Perfluoroheptanesulfonic acid

(PFHpS)

10 ng/L Total/NA1710 1633

Perfluorononanesulfonic acid (PFNS) 10 ng/L Total/NA116 1633

1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)

20 ng/L Total/NA129 1633

1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS)

20 ng/L Total/NA13100 1633

Perfluorooctanesulfonamide (PFOSA) 10 ng/L Total/NA1190 1633

Eurofins Cleveland

This Detection Summary does not include radiochemical test results.

Page 8 of 48 5/20/2025

Detection Summary

Project/Site: Overflow Tank

Client Sample ID: M-1-2 (Continued) Lab Sample ID: 240-223402-2

N-ethylperfluorooctane sulfonamide

(NEtFOSA)

RL

10 ng/L

MDLAnalyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA112 1633

N-methylperfluorooctanesulfonamidoa cetic acid (NMeFOSAA)

10 ng/L Total/NA119 1633

N-ethylperfluorooctanesulfonamidoac etic acid (NEtFOSAA)

10 ng/L Total/NA130 1633

3-Perfluoropentylpropanoic acid (5:3

FTCA)

50 ng/L Total/NA1590 1633

3-Perfluoroheptylpropanoic acid (7:3

FTCA)

50 ng/L Total/NA150 1633

Perfluorodecanesulfonic acid (PFDS) 10 ng/L Total/NA111 1633

Perfluorooctanesulfonic acid (PFOS) -

DL

100 ng/L Total/NA1043000 1633

1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) - DL

400 ng/L Total/NA1029000 1633

Client Sample ID: B-1-2 Lab Sample ID: 240-223402-3

Perfluorobutanoic acid (PFBA)

RL

20 ng/L

MDLAnalyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA1520 1633

Perfluoropentanoic acid (PFPeA) 10 ng/L Total/NA11000 1633

Perfluorohexanoic acid (PFHxA) 10 ng/L Total/NA15100 1633

Perfluoroheptanoic acid (PFHpA) 10 ng/L Total/NA1590 1633

Perfluorooctanoic acid (PFOA) 10 ng/L Total/NA11200 1633

Perfluorononanoic acid (PFNA) 10 ng/L Total/NA1170 1633

Perfluorodecanoic acid (PFDA) 10 ng/L Total/NA173 1633

Perfluoroundecanoic acid (PFUnA) 10 ng/L Total/NA116 1633

Perfluorobutanesulfonic acid (PFBS) 10 ng/L Total/NA1250 1633

Perfluoropentanesulfonic acid

(PFPeS)

10 ng/L Total/NA1320 1633

Perfluorohexanesulfonic acid (PFHxS) 10 ng/L Total/NA14900 1633

Perfluoroheptanesulfonic acid

(PFHpS)

10 ng/L Total/NA1590 1633

Perfluorononanesulfonic acid (PFNS) 10 ng/L Total/NA116 1633

1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)

20 ng/L Total/NA132 1633

1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS)

20 ng/L Total/NA12900 1633

Perfluorooctanesulfonamide (PFOSA) 10 ng/L Total/NA1120 1633

N-ethylperfluorooctanesulfonamidoac etic acid (NEtFOSAA)

10 ng/L Total/NA121 1633

3-Perfluoropentylpropanoic acid (5:3

FTCA)

50 ng/L Total/NA1620 1633

3-Perfluoroheptylpropanoic acid (7:3

FTCA)

50 ng/L Total/NA153 1633

Perfluorodecanesulfonic acid (PFDS) 10 ng/L Total/NA114 1633

Perfluorooctanesulfonic acid (PFOS) -

DL

100 ng/L Total/NA1038000 1633

1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) - DL

400 ng/L Total/NA1030000 1633

Client Sample ID: FB-1-2 Lab Sample ID: 240-223402-4

No Detections.

Eurofins Cleveland

This Detection Summary does not include radiochemical test results.

Page 9 of 48 5/20/2025

Client Sample Results

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-1Client Sample ID: T-1-2 Matrix: WaterDate Collected: 04/30/25 13:27

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS

RL MDL

500 20 ng/L 05/02/25 09:26 05/06/25 08:26 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluorobutanoic acid (PFBA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1990Perfluoropentanoic acid (PFPeA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 14900Perfluorohexanoic acid (PFHxA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1540Perfluoroheptanoic acid (PFHpA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 11300Perfluorooctanoic acid (PFOA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1160Perfluorononanoic acid (PFNA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 166Perfluorodecanoic acid (PFDA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 110Perfluoroundecanoic acid

(PFUnA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDPerfluorododecanoic acid (PFDoA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDPerfluorotridecanoic acid (PFTrDA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDPerfluorotetradecanoic acid (PFTeDA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1260Perfluorobutanesulfonic acid

(PFBS)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1330Perfluoropentanesulfonic acid

(PFPeS)

10 ng/L 05/02/25 09:26 05/06/25 08:26 15000Perfluorohexanesulfonic acid

(PFHxS)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1680Perfluoroheptanesulfonic acid

(PFHpS)

10 ng/L 05/02/25 09:26 05/06/25 08:26 117Perfluorononanesulfonic acid

(PFNS)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDPerfluorododecanesulfonic acid

(PFDoS)

20 ng/L 05/02/25 09:26 05/06/25 08:26 1291H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)

20 ng/L 05/02/25 09:26 05/06/25 08:26 130001H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS)

10 ng/L 05/02/25 09:26 05/06/25 08:26 192Perfluorooctanesulfonamide

(PFOSA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDN-methylperfluorooctane sulfonamide

(NMeFOSA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDN-ethylperfluorooctane sulfonamide

(NEtFOSA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDN-methylperfluorooctanesulfonamidoa cetic acid (NMeFOSAA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 115N-ethylperfluorooctanesulfonami doacetic acid (NEtFOSAA)

50 ng/L 05/02/25 09:26 05/06/25 08:26 1NDN-methylperfluorooctane sulfonamidoethanol (NMeFOSE)

50 ng/L 05/02/25 09:26 05/06/25 08:26 1ND *+N-ethylperfluorooctane sulfonamidoethanol (NEtFOSE)

7.5 ng/L 05/02/25 09:26 05/06/25 08:26 1NDHexafluoropropylene Oxide Dimer

Acid (HFPO-DA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1ND4,8-Dioxa-3H-perfluorononanoic acid

(ADONA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDPerfluoro-4-methoxybutanoic acid

(PFMBA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1ND *+Nonafluoro-3,6-dioxaheptanoic acid

(NFDHA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1ND9-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid (9Cl-PF3ONS)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1ND11-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid (11Cl-PF3OUdS)

Eurofins Cleveland

Page 10 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-1Client Sample ID: T-1-2 Matrix: WaterDate Collected: 04/30/25 13:27

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS (Continued)

RL MDL

ND 10 ng/L 05/02/25 09:26 05/06/25 08:26 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

20 ng/L 05/02/25 09:26 05/06/25 08:26 1ND3-Perfluoropropylpropanoic acid (3:3

FTCA)

50 ng/L 05/02/25 09:26 05/06/25 08:26 17203-Perfluoropentylpropanoic acid

(5:3 FTCA)

50 ng/L 05/02/25 09:26 05/06/25 08:26 1573-Perfluoroheptylpropanoic acid

(7:3 FTCA)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDPerfluorodecanesulfonic acid (PFDS)

10 ng/L 05/02/25 09:26 05/06/25 08:26 1NDPerfluoro-3-methoxypropanoic acid

(PFMPA)

13C4 PFBA 104 5 - 130 05/02/25 09:26 05/06/25 08:26 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C5 PFPeA 99.0 05/02/25 09:26 05/06/25 08:26 140 - 130

13C5 PFHxA 89.7 05/02/25 09:26 05/06/25 08:26 140 - 130

13C4 PFHpA 87.7 05/02/25 09:26 05/06/25 08:26 140 - 130

13C8 PFOA 97.8 05/02/25 09:26 05/06/25 08:26 140 - 130

13C9 PFNA 93.9 05/02/25 09:26 05/06/25 08:26 140 - 130

13C6 PFDA 89.1 05/02/25 09:26 05/06/25 08:26 140 - 130

13C7 PFUnA 81.9 05/02/25 09:26 05/06/25 08:26 130 - 130

13C2 PFTeDA 72.3 05/02/25 09:26 05/06/25 08:26 110 - 130

13C3 PFBS 104 05/02/25 09:26 05/06/25 08:26 140 - 135

13C3 PFHxS 92.1 05/02/25 09:26 05/06/25 08:26 140 - 130

13C8 PFOS 85.9 05/02/25 09:26 05/06/25 08:26 140 - 130

13C8 PFOSA 106 05/02/25 09:26 05/06/25 08:26 140 - 130

d3-NMeFOSAA 93.0 05/02/25 09:26 05/06/25 08:26 140 - 170 d5-NEtFOSAA 93.0 05/02/25 09:26 05/06/25 08:26 125 - 135

M2-4:2 FTS 143 05/02/25 09:26 05/06/25 08:26 140 - 200

M2-6:2 FTS 102 I 05/02/25 09:26 05/06/25 08:26 140 - 200

M2-8:2 FTS 129 05/02/25 09:26 05/06/25 08:26 140 - 300

13C3 HFPO-DA 89.3 05/02/25 09:26 05/06/25 08:26 140 - 130

d7-N-MeFOSE-M 79.6 05/02/25 09:26 05/06/25 08:26 110 - 130 d9-N-EtFOSE-M 75.4 05/02/25 09:26 05/06/25 08:26 110 - 130 d5-NEtPFOSA 78.8 05/02/25 09:26 05/06/25 08:26 110 - 130

D3-NMeFOSA 59.6 05/02/25 09:26 05/06/25 08:26 110 - 130

13C2-PFDoDA 77.9 05/02/25 09:26 05/06/25 08:26 110 - 130

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - DL

RL MDL

43000 100 ng/L 05/02/25 09:26 05/06/25 08:42 10

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluorooctanesulfonic acid

(PFOS)

400 ng/L 05/08/25 08:58 05/10/25 03:52 10290001H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)

13C4 PFBA 95.8 5 - 130 05/02/25 09:26 05/06/25 08:42 10

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C4 PFBA 87.6 05/08/25 08:58 05/10/25 03:52 105 - 130

13C5 PFPeA 111 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C5 PFPeA 87.8 05/08/25 08:58 05/10/25 03:52 1040 - 130

13C5 PFHxA 106 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C5 PFHxA 86.3 05/08/25 08:58 05/10/25 03:52 1040 - 130

13C4 PFHpA 103 05/02/25 09:26 05/06/25 08:42 1040 - 130

Eurofins Cleveland

Page 11 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-1Client Sample ID: T-1-2 Matrix: WaterDate Collected: 04/30/25 13:27

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - DL (Continued)

13C4 PFHpA 82.0 40 - 130 05/08/25 08:58 05/10/25 03:52 10

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C8 PFOA 99.8 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C8 PFOA 87.4 05/08/25 08:58 05/10/25 03:52 1040 - 130

13C9 PFNA 94.8 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C9 PFNA 81.1 05/08/25 08:58 05/10/25 03:52 1040 - 130

13C6 PFDA 91.9 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C6 PFDA 89.2 05/08/25 08:58 05/10/25 03:52 1040 - 130

13C7 PFUnA 89.9 05/02/25 09:26 05/06/25 08:42 1030 - 130

13C7 PFUnA 83.9 05/08/25 08:58 05/10/25 03:52 1030 - 130

13C2 PFTeDA 80.2 05/02/25 09:26 05/06/25 08:42 1010 - 130

13C2 PFTeDA 67.1 05/08/25 08:58 05/10/25 03:52 1010 - 130

13C3 PFBS 105 05/02/25 09:26 05/06/25 08:42 1040 - 135

13C3 PFBS 94.1 05/08/25 08:58 05/10/25 03:52 1040 - 135

13C3 PFHxS 94.6 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C3 PFHxS 90.3 05/08/25 08:58 05/10/25 03:52 1040 - 130

13C8 PFOS 89.8 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C8 PFOS 85.2 05/08/25 08:58 05/10/25 03:52 1040 - 130

13C8 PFOSA 85.1 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C8 PFOSA 81.7 05/08/25 08:58 05/10/25 03:52 1040 - 130

d3-NMeFOSAA 67.6 05/02/25 09:26 05/06/25 08:42 1040 - 170 d3-NMeFOSAA 79.9 05/08/25 08:58 05/10/25 03:52 1040 - 170 d5-NEtFOSAA 104 05/02/25 09:26 05/06/25 08:42 1025 - 135 d5-NEtFOSAA 97.7 05/08/25 08:58 05/10/25 03:52 1025 - 135

M2-4:2 FTS 105 05/02/25 09:26 05/06/25 08:42 1040 - 200

M2-4:2 FTS 107 05/08/25 08:58 05/10/25 03:52 1040 - 200

M2-6:2 FTS 110 I 05/02/25 09:26 05/06/25 08:42 1040 - 200

M2-6:2 FTS 97.2 05/08/25 08:58 05/10/25 03:52 1040 - 200

M2-8:2 FTS 108 05/02/25 09:26 05/06/25 08:42 1040 - 300

M2-8:2 FTS 86.5 05/08/25 08:58 05/10/25 03:52 1040 - 300

13C3 HFPO-DA 102 05/02/25 09:26 05/06/25 08:42 1040 - 130

13C3 HFPO-DA 86.9 05/08/25 08:58 05/10/25 03:52 1040 - 130

d7-N-MeFOSE-M 57.0 05/02/25 09:26 05/06/25 08:42 1010 - 130 d7-N-MeFOSE-M 60.9 05/08/25 08:58 05/10/25 03:52 1010 - 130 d9-N-EtFOSE-M 44.7 05/02/25 09:26 05/06/25 08:42 1010 - 130 d9-N-EtFOSE-M 50.9 05/08/25 08:58 05/10/25 03:52 1010 - 130 d5-NEtPFOSA 61.5 05/02/25 09:26 05/06/25 08:42 1010 - 130 d5-NEtPFOSA 64.6 05/08/25 08:58 05/10/25 03:52 1010 - 130

D3-NMeFOSA 65.4 05/02/25 09:26 05/06/25 08:42 1010 - 130

D3-NMeFOSA 68.1 05/08/25 08:58 05/10/25 03:52 1010 - 130

13C2-PFDoDA 76.3 05/02/25 09:26 05/06/25 08:42 1010 - 130

13C2-PFDoDA 81.8 05/08/25 08:58 05/10/25 03:52 1010 - 130

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - RE

13C4 PFBA 89.9 5 - 130 05/08/25 08:58 05/08/25 20:30 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C5 PFPeA 98.9 05/08/25 08:58 05/08/25 20:30 140 - 130

13C5 PFHxA 89.5 05/08/25 08:58 05/08/25 20:30 140 - 130

13C4 PFHpA 87.2 05/08/25 08:58 05/08/25 20:30 140 - 130

13C8 PFOA 85.5 05/08/25 08:58 05/08/25 20:30 140 - 130

13C9 PFNA 81.1 05/08/25 08:58 05/08/25 20:30 140 - 130

Eurofins Cleveland

Page 12 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-1Client Sample ID: T-1-2 Matrix: WaterDate Collected: 04/30/25 13:27

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - RE (Continued)

13C6 PFDA 88.0 40 - 130 05/08/25 08:58 05/08/25 20:30 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C7 PFUnA 88.5 05/08/25 08:58 05/08/25 20:30 130 - 130

13C2 PFTeDA 75.3 05/08/25 08:58 05/08/25 20:30 110 - 130

13C3 PFBS 89.2 05/08/25 08:58 05/08/25 20:30 140 - 135

13C3 PFHxS 88.4 05/08/25 08:58 05/08/25 20:30 140 - 130

13C8 PFOS 82.9 05/08/25 08:58 05/08/25 20:30 140 - 130

13C8 PFOSA 77.2 05/08/25 08:58 05/08/25 20:30 140 - 130

d3-NMeFOSAA 95.3 05/08/25 08:58 05/08/25 20:30 140 - 170 d5-NEtFOSAA 97.7 05/08/25 08:58 05/08/25 20:30 125 - 135

M2-4:2 FTS 128 05/08/25 08:58 05/08/25 20:30 140 - 200

M2-6:2 FTS 88.1 05/08/25 08:58 05/08/25 20:30 140 - 200

M2-8:2 FTS 92.9 05/08/25 08:58 05/08/25 20:30 140 - 300

13C3 HFPO-DA 90.8 05/08/25 08:58 05/08/25 20:30 140 - 130

d7-N-MeFOSE-M 56.7 05/08/25 08:58 05/08/25 20:30 110 - 130 d9-N-EtFOSE-M 51.2 05/08/25 08:58 05/08/25 20:30 110 - 130 d5-NEtPFOSA 61.5 05/08/25 08:58 05/08/25 20:30 110 - 130

D3-NMeFOSA 73.5 05/08/25 08:58 05/08/25 20:30 110 - 130

13C2-PFDoDA 88.9 05/08/25 08:58 05/08/25 20:30 110 - 130

Eurofins Cleveland

Page 13 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-2Client Sample ID: M-1-2 Matrix: WaterDate Collected: 04/30/25 13:23

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS

RL MDL

520 20 ng/L 05/02/25 09:26 05/06/25 18:57 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluorobutanoic acid (PFBA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1980Perfluoropentanoic acid (PFPeA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 15000Perfluorohexanoic acid (PFHxA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1570Perfluoroheptanoic acid (PFHpA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 11300Perfluorooctanoic acid (PFOA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1170Perfluorononanoic acid (PFNA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 182Perfluorodecanoic acid (PFDA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 115Perfluoroundecanoic acid

(PFUnA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1NDPerfluorododecanoic acid (PFDoA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1NDPerfluorotridecanoic acid (PFTrDA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1NDPerfluorotetradecanoic acid (PFTeDA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1250Perfluorobutanesulfonic acid

(PFBS)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1330Perfluoropentanesulfonic acid

(PFPeS)

10 ng/L 05/02/25 09:26 05/06/25 18:57 14800Perfluorohexanesulfonic acid

(PFHxS)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1710Perfluoroheptanesulfonic acid

(PFHpS)

10 ng/L 05/02/25 09:26 05/06/25 18:57 116Perfluorononanesulfonic acid

(PFNS)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1NDPerfluorododecanesulfonic acid

(PFDoS)

20 ng/L 05/02/25 09:26 05/06/25 18:57 1291H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)

20 ng/L 05/02/25 09:26 05/06/25 18:57 131001H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1190Perfluorooctanesulfonamide

(PFOSA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1NDN-methylperfluorooctane sulfonamide

(NMeFOSA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 112N-ethylperfluorooctane sulfonamide (NEtFOSA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 119N-methylperfluorooctanesulfona midoacetic acid (NMeFOSAA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 130N-ethylperfluorooctanesulfonami doacetic acid (NEtFOSAA)

50 ng/L 05/02/25 09:26 05/06/25 18:57 1NDN-methylperfluorooctane sulfonamidoethanol (NMeFOSE)

50 ng/L 05/02/25 09:26 05/06/25 18:57 1ND *+N-ethylperfluorooctane sulfonamidoethanol (NEtFOSE)

7.5 ng/L 05/02/25 09:26 05/06/25 18:57 1NDHexafluoropropylene Oxide Dimer

Acid (HFPO-DA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1ND4,8-Dioxa-3H-perfluorononanoic acid

(ADONA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1NDPerfluoro-4-methoxybutanoic acid

(PFMBA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1ND *+Nonafluoro-3,6-dioxaheptanoic acid

(NFDHA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1ND9-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid (9Cl-PF3ONS)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1ND11-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid (11Cl-PF3OUdS)

Eurofins Cleveland

Page 14 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-2Client Sample ID: M-1-2 Matrix: WaterDate Collected: 04/30/25 13:23

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS (Continued)

RL MDL

ND 10 ng/L 05/02/25 09:26 05/06/25 18:57 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

20 ng/L 05/02/25 09:26 05/06/25 18:57 1ND3-Perfluoropropylpropanoic acid (3:3

FTCA)

50 ng/L 05/02/25 09:26 05/06/25 18:57 15903-Perfluoropentylpropanoic acid

(5:3 FTCA)

50 ng/L 05/02/25 09:26 05/06/25 18:57 1503-Perfluoroheptylpropanoic acid

(7:3 FTCA)

10 ng/L 05/02/25 09:26 05/06/25 18:57 111Perfluorodecanesulfonic acid

(PFDS)

10 ng/L 05/02/25 09:26 05/06/25 18:57 1NDPerfluoro-3-methoxypropanoic acid

(PFMPA)

13C4 PFBA 102 5 - 130 05/02/25 09:26 05/06/25 18:57 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C5 PFPeA 99.0 05/02/25 09:26 05/06/25 18:57 140 - 130

13C5 PFHxA 90.0 05/02/25 09:26 05/06/25 18:57 140 - 130

13C4 PFHpA 85.7 05/02/25 09:26 05/06/25 18:57 140 - 130

13C8 PFOA 89.1 05/02/25 09:26 05/06/25 18:57 140 - 130

13C9 PFNA 76.2 05/02/25 09:26 05/06/25 18:57 140 - 130

13C6 PFDA 59.2 05/02/25 09:26 05/06/25 18:57 140 - 130

13C7 PFUnA 50.2 05/02/25 09:26 05/06/25 18:57 130 - 130

13C2 PFTeDA 63.5 05/02/25 09:26 05/06/25 18:57 110 - 130

13C3 PFBS 102 05/02/25 09:26 05/06/25 18:57 140 - 135

13C3 PFHxS 90.0 05/02/25 09:26 05/06/25 18:57 140 - 130

13C8 PFOS 78.3 05/02/25 09:26 05/06/25 18:57 140 - 130

13C8 PFOSA 81.8 05/02/25 09:26 05/06/25 18:57 140 - 130

d3-NMeFOSAA 62.4 05/02/25 09:26 05/06/25 18:57 140 - 170 d5-NEtFOSAA 57.8 05/02/25 09:26 05/06/25 18:57 125 - 135

M2-4:2 FTS 154 05/02/25 09:26 05/06/25 18:57 140 - 200

M2-6:2 FTS 107 I 05/02/25 09:26 05/06/25 18:57 140 - 200

M2-8:2 FTS 118 05/02/25 09:26 05/06/25 18:57 140 - 300

13C3 HFPO-DA 89.2 05/02/25 09:26 05/06/25 18:57 140 - 130

d7-N-MeFOSE-M 63.3 05/02/25 09:26 05/06/25 18:57 110 - 130 d9-N-EtFOSE-M 45.3 05/02/25 09:26 05/06/25 18:57 110 - 130 d5-NEtPFOSA 57.6 05/02/25 09:26 05/06/25 18:57 110 - 130

D3-NMeFOSA 25.7 05/02/25 09:26 05/06/25 18:57 110 - 130

13C2-PFDoDA 54.5 05/02/25 09:26 05/06/25 18:57 110 - 130

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - DL

RL MDL

43000 100 ng/L 05/02/25 09:26 05/06/25 09:16 10

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluorooctanesulfonic acid

(PFOS)

400 ng/L 05/08/25 08:58 05/10/25 04:42 10290001H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)

13C4 PFBA 98.5 5 - 130 05/02/25 09:26 05/06/25 09:16 10

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C4 PFBA 87.2 05/08/25 08:58 05/10/25 04:42 105 - 130

13C5 PFPeA 110 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C5 PFPeA 91.9 05/08/25 08:58 05/10/25 04:42 1040 - 130

13C5 PFHxA 107 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C5 PFHxA 91.2 05/08/25 08:58 05/10/25 04:42 1040 - 130

Eurofins Cleveland

Page 15 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-2Client Sample ID: M-1-2 Matrix: WaterDate Collected: 04/30/25 13:23

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - DL (Continued)

13C4 PFHpA 98.6 40 - 130 05/02/25 09:26 05/06/25 09:16 10

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C4 PFHpA 86.8 05/08/25 08:58 05/10/25 04:42 1040 - 130

13C8 PFOA 92.4 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C8 PFOA 89.0 05/08/25 08:58 05/10/25 04:42 1040 - 130

13C9 PFNA 74.2 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C9 PFNA 85.1 05/08/25 08:58 05/10/25 04:42 1040 - 130

13C6 PFDA 61.4 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C6 PFDA 94.8 05/08/25 08:58 05/10/25 04:42 1040 - 130

13C7 PFUnA 51.4 05/02/25 09:26 05/06/25 09:16 1030 - 130

13C7 PFUnA 82.0 05/08/25 08:58 05/10/25 04:42 1030 - 130

13C2 PFTeDA 55.1 05/02/25 09:26 05/06/25 09:16 1010 - 130

13C2 PFTeDA 70.2 05/08/25 08:58 05/10/25 04:42 1010 - 130

13C3 PFBS 102 05/02/25 09:26 05/06/25 09:16 1040 - 135

13C3 PFBS 92.5 05/08/25 08:58 05/10/25 04:42 1040 - 135

13C3 PFHxS 89.2 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C3 PFHxS 93.7 05/08/25 08:58 05/10/25 04:42 1040 - 130

13C8 PFOS 80.5 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C8 PFOS 89.2 05/08/25 08:58 05/10/25 04:42 1040 - 130

13C8 PFOSA 56.9 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C8 PFOSA 82.9 05/08/25 08:58 05/10/25 04:42 1040 - 130

d3-NMeFOSAA 43.1 05/02/25 09:26 05/06/25 09:16 1040 - 170 d3-NMeFOSAA 69.1 05/08/25 08:58 05/10/25 04:42 1040 - 170 d5-NEtFOSAA 66.9 05/02/25 09:26 05/06/25 09:16 1025 - 135 d5-NEtFOSAA 82.9 05/08/25 08:58 05/10/25 04:42 1025 - 135

M2-4:2 FTS 98.3 05/02/25 09:26 05/06/25 09:16 1040 - 200

M2-4:2 FTS 108 05/08/25 08:58 05/10/25 04:42 1040 - 200

M2-6:2 FTS 102 I 05/02/25 09:26 05/06/25 09:16 1040 - 200

M2-6:2 FTS 98.9 05/08/25 08:58 05/10/25 04:42 1040 - 200

M2-8:2 FTS 84.4 05/02/25 09:26 05/06/25 09:16 1040 - 300

M2-8:2 FTS 95.4 05/08/25 08:58 05/10/25 04:42 1040 - 300

13C3 HFPO-DA 101 05/02/25 09:26 05/06/25 09:16 1040 - 130

13C3 HFPO-DA 91.3 05/08/25 08:58 05/10/25 04:42 1040 - 130

d7-N-MeFOSE-M 48.7 05/02/25 09:26 05/06/25 09:16 1010 - 130 d7-N-MeFOSE-M 71.9 05/08/25 08:58 05/10/25 04:42 1010 - 130 d9-N-EtFOSE-M 41.0 05/02/25 09:26 05/06/25 09:16 1010 - 130 d9-N-EtFOSE-M 67.7 05/08/25 08:58 05/10/25 04:42 1010 - 130 d5-NEtPFOSA 53.9 05/02/25 09:26 05/06/25 09:16 1010 - 130 d5-NEtPFOSA 65.6 05/08/25 08:58 05/10/25 04:42 1010 - 130

D3-NMeFOSA 48.4 05/02/25 09:26 05/06/25 09:16 1010 - 130

D3-NMeFOSA 72.1 05/08/25 08:58 05/10/25 04:42 1010 - 130

13C2-PFDoDA 50.8 05/02/25 09:26 05/06/25 09:16 1010 - 130

13C2-PFDoDA 79.8 05/08/25 08:58 05/10/25 04:42 1010 - 130

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - RE

13C4 PFBA 90.7 5 - 130 05/08/25 08:58 05/08/25 20:47 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C5 PFPeA 97.7 05/08/25 08:58 05/08/25 20:47 140 - 130

13C5 PFHxA 90.0 05/08/25 08:58 05/08/25 20:47 140 - 130

13C4 PFHpA 87.7 05/08/25 08:58 05/08/25 20:47 140 - 130

13C8 PFOA 87.6 05/08/25 08:58 05/08/25 20:47 140 - 130

Eurofins Cleveland

Page 16 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-2Client Sample ID: M-1-2 Matrix: WaterDate Collected: 04/30/25 13:23

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - RE (Continued)

13C9 PFNA 83.7 40 - 130 05/08/25 08:58 05/08/25 20:47 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C6 PFDA 90.7 05/08/25 08:58 05/08/25 20:47 140 - 130

13C7 PFUnA 85.4 05/08/25 08:58 05/08/25 20:47 130 - 130

13C2 PFTeDA 82.1 05/08/25 08:58 05/08/25 20:47 110 - 130

13C3 PFBS 91.0 05/08/25 08:58 05/08/25 20:47 140 - 135

13C3 PFHxS 92.3 05/08/25 08:58 05/08/25 20:47 140 - 130

13C8 PFOS 88.4 05/08/25 08:58 05/08/25 20:47 140 - 130

13C8 PFOSA 80.4 05/08/25 08:58 05/08/25 20:47 140 - 130

d3-NMeFOSAA 84.0 05/08/25 08:58 05/08/25 20:47 140 - 170 d5-NEtFOSAA 85.0 05/08/25 08:58 05/08/25 20:47 125 - 135

M2-4:2 FTS 121 05/08/25 08:58 05/08/25 20:47 140 - 200

M2-6:2 FTS 91.2 05/08/25 08:58 05/08/25 20:47 140 - 200

M2-8:2 FTS 92.4 05/08/25 08:58 05/08/25 20:47 140 - 300

13C3 HFPO-DA 89.8 05/08/25 08:58 05/08/25 20:47 140 - 130

d7-N-MeFOSE-M 76.5 05/08/25 08:58 05/08/25 20:47 110 - 130 d9-N-EtFOSE-M 72.3 05/08/25 08:58 05/08/25 20:47 110 - 130 d5-NEtPFOSA 65.6 05/08/25 08:58 05/08/25 20:47 110 - 130

D3-NMeFOSA 66.3 05/08/25 08:58 05/08/25 20:47 110 - 130

13C2-PFDoDA 87.1 05/08/25 08:58 05/08/25 20:47 110 - 130

Eurofins Cleveland

Page 17 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-3Client Sample ID: B-1-2 Matrix: WaterDate Collected: 04/30/25 13:13

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS

RL MDL

520 20 ng/L 05/02/25 09:26 05/06/25 09:32 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluorobutanoic acid (PFBA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 11000Perfluoropentanoic acid (PFPeA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 15100Perfluorohexanoic acid (PFHxA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1590Perfluoroheptanoic acid (PFHpA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 11200Perfluorooctanoic acid (PFOA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1170Perfluorononanoic acid (PFNA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 173Perfluorodecanoic acid (PFDA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 116Perfluoroundecanoic acid

(PFUnA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDPerfluorododecanoic acid (PFDoA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDPerfluorotridecanoic acid (PFTrDA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDPerfluorotetradecanoic acid (PFTeDA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1250Perfluorobutanesulfonic acid

(PFBS)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1320Perfluoropentanesulfonic acid

(PFPeS)

10 ng/L 05/02/25 09:26 05/06/25 09:32 14900Perfluorohexanesulfonic acid

(PFHxS)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1590Perfluoroheptanesulfonic acid

(PFHpS)

10 ng/L 05/02/25 09:26 05/06/25 09:32 116Perfluorononanesulfonic acid

(PFNS)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDPerfluorododecanesulfonic acid

(PFDoS)

20 ng/L 05/02/25 09:26 05/06/25 09:32 1321H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)

20 ng/L 05/02/25 09:26 05/06/25 09:32 129001H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1120Perfluorooctanesulfonamide

(PFOSA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDN-methylperfluorooctane sulfonamide

(NMeFOSA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDN-ethylperfluorooctane sulfonamide

(NEtFOSA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDN-methylperfluorooctanesulfonamidoa cetic acid (NMeFOSAA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 121N-ethylperfluorooctanesulfonami doacetic acid (NEtFOSAA)

50 ng/L 05/02/25 09:26 05/06/25 09:32 1NDN-methylperfluorooctane sulfonamidoethanol (NMeFOSE)

50 ng/L 05/02/25 09:26 05/06/25 09:32 1ND *+N-ethylperfluorooctane sulfonamidoethanol (NEtFOSE)

7.5 ng/L 05/02/25 09:26 05/06/25 09:32 1NDHexafluoropropylene Oxide Dimer

Acid (HFPO-DA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1ND4,8-Dioxa-3H-perfluorononanoic acid

(ADONA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDPerfluoro-4-methoxybutanoic acid

(PFMBA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1ND *+Nonafluoro-3,6-dioxaheptanoic acid

(NFDHA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1ND9-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid (9Cl-PF3ONS)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1ND11-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid (11Cl-PF3OUdS)

Eurofins Cleveland

Page 18 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-3Client Sample ID: B-1-2 Matrix: WaterDate Collected: 04/30/25 13:13

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS (Continued)

RL MDL

ND 10 ng/L 05/02/25 09:26 05/06/25 09:32 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

20 ng/L 05/02/25 09:26 05/06/25 09:32 1ND3-Perfluoropropylpropanoic acid (3:3

FTCA)

50 ng/L 05/02/25 09:26 05/06/25 09:32 16203-Perfluoropentylpropanoic acid

(5:3 FTCA)

50 ng/L 05/02/25 09:26 05/06/25 09:32 1533-Perfluoroheptylpropanoic acid

(7:3 FTCA)

10 ng/L 05/02/25 09:26 05/06/25 09:32 114Perfluorodecanesulfonic acid

(PFDS)

10 ng/L 05/02/25 09:26 05/06/25 09:32 1NDPerfluoro-3-methoxypropanoic acid

(PFMPA)

13C4 PFBA 89.7 5 - 130 05/02/25 09:26 05/06/25 09:32 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C5 PFPeA 85.5 05/02/25 09:26 05/06/25 09:32 140 - 130

13C5 PFHxA 77.0 05/02/25 09:26 05/06/25 09:32 140 - 130

13C4 PFHpA 75.1 05/02/25 09:26 05/06/25 09:32 140 - 130

13C8 PFOA 82.2 05/02/25 09:26 05/06/25 09:32 140 - 130

13C9 PFNA 74.3 05/02/25 09:26 05/06/25 09:32 140 - 130

13C6 PFDA 67.8 05/02/25 09:26 05/06/25 09:32 140 - 130

13C7 PFUnA 63.2 05/02/25 09:26 05/06/25 09:32 130 - 130

13C2 PFTeDA 81.3 05/02/25 09:26 05/06/25 09:32 110 - 130

13C3 PFBS 86.7 05/02/25 09:26 05/06/25 09:32 140 - 135

13C3 PFHxS 78.1 05/02/25 09:26 05/06/25 09:32 140 - 130

13C8 PFOS 77.1 05/02/25 09:26 05/06/25 09:32 140 - 130

13C8 PFOSA 88.4 05/02/25 09:26 05/06/25 09:32 140 - 130

d3-NMeFOSAA 83.1 05/02/25 09:26 05/06/25 09:32 140 - 170 d5-NEtFOSAA 79.8 05/02/25 09:26 05/06/25 09:32 125 - 135

M2-4:2 FTS 125 05/02/25 09:26 05/06/25 09:32 140 - 200

M2-6:2 FTS 86.3 I 05/02/25 09:26 05/06/25 09:32 140 - 200

M2-8:2 FTS 108 05/02/25 09:26 05/06/25 09:32 140 - 300

13C3 HFPO-DA 74.6 05/02/25 09:26 05/06/25 09:32 140 - 130

d7-N-MeFOSE-M 79.0 05/02/25 09:26 05/06/25 09:32 110 - 130 d9-N-EtFOSE-M 60.8 05/02/25 09:26 05/06/25 09:32 110 - 130 d5-NEtPFOSA 67.7 05/02/25 09:26 05/06/25 09:32 110 - 130

D3-NMeFOSA 43.2 05/02/25 09:26 05/06/25 09:32 110 - 130

13C2-PFDoDA 72.7 05/02/25 09:26 05/06/25 09:32 110 - 130

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - DL

RL MDL

38000 100 ng/L 05/02/25 09:26 05/06/25 09:49 10

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluorooctanesulfonic acid

(PFOS)

400 ng/L 05/08/25 08:58 05/10/25 04:58 10300001H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)

13C4 PFBA 84.4 5 - 130 05/02/25 09:26 05/06/25 09:49 10

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C4 PFBA 87.2 05/08/25 08:58 05/10/25 04:58 105 - 130

13C5 PFPeA 94.2 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C5 PFPeA 90.0 05/08/25 08:58 05/10/25 04:58 1040 - 130

13C5 PFHxA 91.0 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C5 PFHxA 88.2 05/08/25 08:58 05/10/25 04:58 1040 - 130

Eurofins Cleveland

Page 19 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-3Client Sample ID: B-1-2 Matrix: WaterDate Collected: 04/30/25 13:13

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - DL (Continued)

13C4 PFHpA 83.0 40 - 130 05/02/25 09:26 05/06/25 09:49 10

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C4 PFHpA 83.8 05/08/25 08:58 05/10/25 04:58 1040 - 130

13C8 PFOA 79.1 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C8 PFOA 85.2 05/08/25 08:58 05/10/25 04:58 1040 - 130

13C9 PFNA 73.3 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C9 PFNA 79.8 05/08/25 08:58 05/10/25 04:58 1040 - 130

13C6 PFDA 64.9 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C6 PFDA 85.2 05/08/25 08:58 05/10/25 04:58 1040 - 130

13C7 PFUnA 65.2 05/02/25 09:26 05/06/25 09:49 1030 - 130

13C7 PFUnA 77.5 05/08/25 08:58 05/10/25 04:58 1030 - 130

13C2 PFTeDA 74.2 05/02/25 09:26 05/06/25 09:49 1010 - 130

13C2 PFTeDA 67.6 05/08/25 08:58 05/10/25 04:58 1010 - 130

13C3 PFBS 87.3 05/02/25 09:26 05/06/25 09:49 1040 - 135

13C3 PFBS 90.4 05/08/25 08:58 05/10/25 04:58 1040 - 135

13C3 PFHxS 77.5 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C3 PFHxS 86.2 05/08/25 08:58 05/10/25 04:58 1040 - 130

13C8 PFOS 80.8 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C8 PFOS 82.6 05/08/25 08:58 05/10/25 04:58 1040 - 130

13C8 PFOSA 67.5 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C8 PFOSA 79.2 05/08/25 08:58 05/10/25 04:58 1040 - 130

d3-NMeFOSAA 59.8 05/02/25 09:26 05/06/25 09:49 1040 - 170 d3-NMeFOSAA 73.0 05/08/25 08:58 05/10/25 04:58 1040 - 170 d5-NEtFOSAA 89.3 05/02/25 09:26 05/06/25 09:49 1025 - 135 d5-NEtFOSAA 93.3 05/08/25 08:58 05/10/25 04:58 1025 - 135

M2-4:2 FTS 84.1 05/02/25 09:26 05/06/25 09:49 1040 - 200

M2-4:2 FTS 96.9 05/08/25 08:58 05/10/25 04:58 1040 - 200

M2-6:2 FTS 88.9 I 05/02/25 09:26 05/06/25 09:49 1040 - 200

M2-6:2 FTS 89.2 05/08/25 08:58 05/10/25 04:58 1040 - 200

M2-8:2 FTS 84.5 05/02/25 09:26 05/06/25 09:49 1040 - 300

M2-8:2 FTS 88.7 05/08/25 08:58 05/10/25 04:58 1040 - 300

13C3 HFPO-DA 85.9 05/02/25 09:26 05/06/25 09:49 1040 - 130

13C3 HFPO-DA 84.3 05/08/25 08:58 05/10/25 04:58 1040 - 130

d7-N-MeFOSE-M 53.7 05/02/25 09:26 05/06/25 09:49 1010 - 130 d7-N-MeFOSE-M 60.3 05/08/25 08:58 05/10/25 04:58 1010 - 130 d9-N-EtFOSE-M 50.9 05/02/25 09:26 05/06/25 09:49 1010 - 130 d9-N-EtFOSE-M 55.4 05/08/25 08:58 05/10/25 04:58 1010 - 130 d5-NEtPFOSA 61.1 05/02/25 09:26 05/06/25 09:49 1010 - 130 d5-NEtPFOSA 64.6 05/08/25 08:58 05/10/25 04:58 1010 - 130

D3-NMeFOSA 60.3 05/02/25 09:26 05/06/25 09:49 1010 - 130

D3-NMeFOSA 72.4 05/08/25 08:58 05/10/25 04:58 1010 - 130

13C2-PFDoDA 66.6 05/02/25 09:26 05/06/25 09:49 1010 - 130

13C2-PFDoDA 78.5 05/08/25 08:58 05/10/25 04:58 1010 - 130

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - RE

13C4 PFBA 89.0 5 - 130 05/08/25 08:58 05/08/25 21:37 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C5 PFPeA 95.9 05/08/25 08:58 05/08/25 21:37 140 - 130

13C5 PFHxA 89.3 05/08/25 08:58 05/08/25 21:37 140 - 130

13C4 PFHpA 83.3 05/08/25 08:58 05/08/25 21:37 140 - 130

13C8 PFOA 84.1 05/08/25 08:58 05/08/25 21:37 140 - 130

Eurofins Cleveland

Page 20 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-3Client Sample ID: B-1-2 Matrix: WaterDate Collected: 04/30/25 13:13

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS - RE (Continued)

13C9 PFNA 79.4 40 - 130 05/08/25 08:58 05/08/25 21:37 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C6 PFDA 85.8 05/08/25 08:58 05/08/25 21:37 140 - 130

13C7 PFUnA 85.3 05/08/25 08:58 05/08/25 21:37 130 - 130

13C2 PFTeDA 72.8 05/08/25 08:58 05/08/25 21:37 110 - 130

13C3 PFBS 89.7 05/08/25 08:58 05/08/25 21:37 140 - 135

13C3 PFHxS 85.7 05/08/25 08:58 05/08/25 21:37 140 - 130

13C8 PFOS 81.4 05/08/25 08:58 05/08/25 21:37 140 - 130

13C8 PFOSA 76.6 05/08/25 08:58 05/08/25 21:37 140 - 130

d3-NMeFOSAA 88.7 05/08/25 08:58 05/08/25 21:37 140 - 170 d5-NEtFOSAA 88.5 05/08/25 08:58 05/08/25 21:37 125 - 135

M2-4:2 FTS 118 05/08/25 08:58 05/08/25 21:37 140 - 200

M2-6:2 FTS 83.8 05/08/25 08:58 05/08/25 21:37 140 - 200

M2-8:2 FTS 85.7 05/08/25 08:58 05/08/25 21:37 140 - 300

13C3 HFPO-DA 88.3 05/08/25 08:58 05/08/25 21:37 140 - 130

d7-N-MeFOSE-M 57.1 05/08/25 08:58 05/08/25 21:37 110 - 130 d9-N-EtFOSE-M 52.4 05/08/25 08:58 05/08/25 21:37 110 - 130 d5-NEtPFOSA 61.5 05/08/25 08:58 05/08/25 21:37 110 - 130

D3-NMeFOSA 73.4 05/08/25 08:58 05/08/25 21:37 110 - 130

13C2-PFDoDA 88.7 05/08/25 08:58 05/08/25 21:37 110 - 130

Eurofins Cleveland

Page 21 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-4Client Sample ID: FB-1-2 Matrix: WaterDate Collected: 04/30/25 13:29

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS

RL MDL

ND 20 ng/L 05/02/25 09:26 05/06/25 10:39 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Perfluorobutanoic acid (PFBA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluoropentanoic acid (PFPeA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorohexanoic acid (PFHxA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluoroheptanoic acid (PFHpA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorooctanoic acid (PFOA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorononanoic acid (PFNA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorodecanoic acid (PFDA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluoroundecanoic acid (PFUnA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorododecanoic acid (PFDoA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorotridecanoic acid (PFTrDA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorotetradecanoic acid (PFTeDA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorobutanesulfonic acid (PFBS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluoropentanesulfonic acid

(PFPeS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorohexanesulfonic acid (PFHxS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluoroheptanesulfonic acid

(PFHpS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorooctanesulfonic acid (PFOS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorononanesulfonic acid (PFNS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorododecanesulfonic acid

(PFDoS)

20 ng/L 05/02/25 09:26 05/06/25 10:39 1ND1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)

20 ng/L 05/02/25 09:26 05/06/25 10:39 1ND *+1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)

20 ng/L 05/02/25 09:26 05/06/25 10:39 1ND1H,1H,2H,2H-Perfluorodecane sulfonic acid (8:2 FTS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorooctanesulfonamide (PFOSA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDN-methylperfluorooctane sulfonamide

(NMeFOSA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDN-ethylperfluorooctane sulfonamide

(NEtFOSA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDN-methylperfluorooctanesulfonamidoa cetic acid (NMeFOSAA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDN-ethylperfluorooctanesulfonamidoac etic acid (NEtFOSAA)

50 ng/L 05/02/25 09:26 05/06/25 10:39 1NDN-methylperfluorooctane sulfonamidoethanol (NMeFOSE)

50 ng/L 05/02/25 09:26 05/06/25 10:39 1ND *+N-ethylperfluorooctane sulfonamidoethanol (NEtFOSE)

7.5 ng/L 05/02/25 09:26 05/06/25 10:39 1NDHexafluoropropylene Oxide Dimer

Acid (HFPO-DA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1ND4,8-Dioxa-3H-perfluorononanoic acid

(ADONA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluoro-4-methoxybutanoic acid

(PFMBA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1ND *+Nonafluoro-3,6-dioxaheptanoic acid

(NFDHA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1ND9-Chlorohexadecafluoro-3-oxanonan e-1-sulfonic acid (9Cl-PF3ONS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1ND11-Chloroeicosafluoro-3-oxaundecan e-1-sulfonic acid (11Cl-PF3OUdS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

Eurofins Cleveland

Page 22 of 48 5/20/2025

Project/Site: Overflow Tank

Lab Sample ID: 240-223402-4Client Sample ID: FB-1-2 Matrix: WaterDate Collected: 04/30/25 13:29

Date Received: 05/01/25 08:00

Method: EPA 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS (Continued)

RL MDL

ND 20 ng/L 05/02/25 09:26 05/06/25 10:39 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3-Perfluoropropylpropanoic acid (3:3

FTCA)

50 ng/L 05/02/25 09:26 05/06/25 10:39 1ND3-Perfluoropentylpropanoic acid (5:3

FTCA)

50 ng/L 05/02/25 09:26 05/06/25 10:39 1ND3-Perfluoroheptylpropanoic acid (7:3

FTCA)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluorodecanesulfonic acid (PFDS)

10 ng/L 05/02/25 09:26 05/06/25 10:39 1NDPerfluoro-3-methoxypropanoic acid

(PFMPA)

13C4 PFBA 97.2 5 - 130 05/02/25 09:26 05/06/25 10:39 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

13C5 PFPeA 113 05/02/25 09:26 05/06/25 10:39 140 - 130

13C5 PFHxA 99.4 05/02/25 09:26 05/06/25 10:39 140 - 130

13C4 PFHpA 102 05/02/25 09:26 05/06/25 10:39 140 - 130

13C8 PFOA 98.5 05/02/25 09:26 05/06/25 10:39 140 - 130

13C9 PFNA 90.0 05/02/25 09:26 05/06/25 10:39 140 - 130

13C6 PFDA 91.2 05/02/25 09:26 05/06/25 10:39 140 - 130

13C7 PFUnA 87.1 05/02/25 09:26 05/06/25 10:39 130 - 130

13C2 PFTeDA 86.3 05/02/25 09:26 05/06/25 10:39 110 - 130

13C3 PFBS 99.3 05/02/25 09:26 05/06/25 10:39 140 - 135

13C3 PFHxS 92.2 05/02/25 09:26 05/06/25 10:39 140 - 130

13C8 PFOS 92.4 05/02/25 09:26 05/06/25 10:39 140 - 130

13C8 PFOSA 88.8 05/02/25 09:26 05/06/25 10:39 140 - 130

d3-NMeFOSAA 78.4 05/02/25 09:26 05/06/25 10:39 140 - 170 d5-NEtFOSAA 150 *5+ 05/02/25 09:26 05/06/25 10:39 125 - 135

M2-4:2 FTS 87.8 05/02/25 09:26 05/06/25 10:39 140 - 200

M2-6:2 FTS 97.0 05/02/25 09:26 05/06/25 10:39 140 - 200

M2-8:2 FTS 98.2 05/02/25 09:26 05/06/25 10:39 140 - 300

13C3 HFPO-DA 103 05/02/25 09:26 05/06/25 10:39 140 - 130

d7-N-MeFOSE-M 60.2 05/02/25 09:26 05/06/25 10:39 110 - 130 d9-N-EtFOSE-M 57.2 05/02/25 09:26 05/06/25 10:39 110 - 130 d5-NEtPFOSA 69.5 05/02/25 09:26 05/06/25 10:39 110 - 130

D3-NMeFOSA 75.5 05/02/25 09:26 05/06/25 10:39 110 - 130

13C2-PFDoDA 83.5 05/02/25 09:26 05/06/25 10:39 110 - 130

Eurofins Cleveland

Page 23 of 48 5/20/2025

QC Sample Results

Project/Site: Overflow Tank

Method: 1633 - Per- and Polyfluoroalkyl Substances by LC/MS/MS

Client Sample ID: Method BlankLab Sample ID: MB 240-654497/1-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 654821 Prep Batch:…

This is the start of the file's text. The full file is on GovTribe.

File details come from the government source that posted it. Updated .