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HomeMy WebLinkAboutNC0026123_Lab Data_20230308® Laboratories LLc a member of The GEL Group INC April 04, 2023 Stephanie Zorio NCDENR 1641 Mail Service Center Raleigh, North Carolina 27607 Re: Biosolids Sampling Work Order: 613703 Dear Stephanie Zorio: Po Box 30712 Charleston_ SC 29417 2040 Savage Road Chad "on. 8C 29407 P 843.556.8171 F 843.766.1178 GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on March 09, 2023. This original data report has been prepared and reviewed in accordance with GEL's standard operating procedures. The samples were delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage. There are no additional comments concerning sample receipt. Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies of GEL's accreditations and certifications can be found on our website at www.gel.com. Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions, please do not hesitate to call me at (843) 556-8171, ext. 1614. Sincerely, sX� ordan Melton for Delaney Stone Project Manager Purchase Order: NCDAQ Enclosures gel. com Page 1 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report for NCDQ001 NC Dept Environmental Quality Client SDG: 613703 GEL Work Order: 613703 The Qualifiers in this report are defined as follows: * A quality control analyte recovery is outside of specified acceptance criteria ** Analyte is a Tracer compound ** Analyte is a surrogate compound B The target analyte was detected in the associated blank. J Value is estimated U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. The designation ND, if present, appears in the result column when the analyte concentration is not detected above the limit as defined in the'U' qualifier above. This data report has been prepared and reviewed in accordance with GEL Laboratories LLC standard operating procedures. Please direct any questions to your Project Manager, Delaney Stone. Reviewed by Page 2 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-INF-20230308 Sample ID: 613703001 Matrix: Water Collect Date: 08-MAR-23 11:19 Receive Date: 09-MAR-23 Collector: Client Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid(F- 53B Minor) 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- J 1.36 octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 6:2 (6:2 5.56 FTS) N-ethylperfluoro-l- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-1- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) 5.67 Perfluorodecanesulfonic acid U ND (PFDS) Perfluorodecanoic acid (PFDA) U ND Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) J 1.41 Perfluorohexanesulfonic acid 2.18 (PFHxS) Perfluorohexanoic acid (PFHxA) 2.21 Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) J 0.692 0.646 1.96 ng/L 0.0196 1 JMB3 03/17/23 1108 2400161 1 1.29 3.91 ng/L 0.0196 1 1.29 3.91 ng/L 0.0196 1 1.29 3.84 ng/L 0.0196 1 1.29 3.72 ng/L 0.0196 1 1.29 3.91 ng/L 0.0196 1 1.29 3.91 ng/L 0.0196 1 1.29 3.91 ng/L 0.0196 1 1.29 3.91 ng/L 0.0196 1 0.646 3.91 ng/L 0.0196 1 0.646 1.74 ng/L 0.0196 1 0.646 1.90 ng/L 0.0196 1 0.763 1.96 ng/L 0.0196 1 0.646 1.96 ng/L 0.0196 1 0.646 1.86 ng/L 0.0196 1 0.646 1.96 ng/L 0.0196 1 0.646 1.78 ng/L 0.0196 1 0.783 1.96 ng/L 0.0196 1 0.685 1.88 ng/L 0.0196 1 0.646 1.96 ng/L 0.0196 1 Page 3 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-INF-20230308 Sample ID: 613703001 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) 2.95 Perfluorooctanoic acid (PFOA) 2.59 Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) 36.9 Perfluoroundecanoic acid (PFUnA) U ND 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) Perfluorobutanoic acid (PFBA) U ND Perfluorohexadecanoic acid U ND (PFHxDA) Perfluorooctadecanoic acid U ND (PFODA) Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND Fluorotelomer sulfonic acid 4:2 (4:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- XU ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nafion Byproduct 5 (PFESA BP5) UX ND Nafion Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nafion Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.646 1.96 ng/L 0.0196 1 0.783 1.96 ng/L 0.0196 1 0.783 1.96 ng/L 0.0196 1 0.646 1.84 ng/L 0.0196 1 0.646 1.96 ng/L 0.0196 1 0.646 1.96 ng/L 0.0196 1 0.646 1.96 ng/L 0.0196 1 3.91 9.79 ng/L 0.0196 5 JMB3 03/17/23 1536 2400161 6.46 19.6 ng/L 0.0196 5 6.46 19.6 ng/L 0.0196 5 3.91 9.79 ng/L 0.0196 5 3.23 9.79 ng/L 0.0196 5 161 460 ng/L 0.0196 125 JMB3 03/17/23 1647 2400161 161 470 ng/L 0.0196 125 0.196 0.489 ng/L 0.0196 1 RR3 03/18/23 0411 2400161 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 0.196 0.489 ng/L 0.0196 1 ►F] t1J 4 Page 4 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-INF-20230308 Project: NCDQ00123 Sample ID: 613703001 Client ID: NCDQ001 April 4, 2023 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.196 0.489 ng/L 0.0196 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.196 0.489 ng/L 0.0196 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid JX 0.460 0.196 0.489 ng/L 0.0196 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.196 0.489 ng/L 0.0196 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.196 0.489 ng/L 0.0196 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.196 0.489 ng/L 0.0196 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.196 0.489 ng/L 0.0196 1 (EVE) Perfluoropropanoic acid (PFPrA) BX 78.4 1.47 3.91 ng/L 0.0196 1 R-EVE UX ND 1.29 3.91 ng/L 0.0196 1 Perfluoro(3,5,7,9,11- UX ND 0.196 0.489 ng/L 0.0196 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.196 0.489 ng/L 0.0196 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.196 0.391 ng/L 0.0196 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/17/23 0659 2400160 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Page 5 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-INF-20230308 Sample ID: 613703001 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Notes: Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 6 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-EFF-20230308 Project: NCDQ00123 Sample ID: 613703002 Client ID: NCDQ001 Matrix: Water Collect Date: 08-MAR-23 11:33 Receive Date: 09-MAR-23 Collector: Client Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND 0.177 0.443 ng/L 0.0177 1 RR3 03/20/23 1916 2400729 1 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- J 0.182 0.177 0.443 ng/L 0.0177 1 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 0.177 0.443 ng/L, 0.0177 1 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nation Byproduct 4 (PFESA BP4) UX ND 0.177 0.443 ng/L 0.0177 1 Nafion Byproduct 5 (PFESA BP5) UX ND 0.177 0.443 ng/L 0.0177 1 Nafion Byproduct 6 (PFESA BP6) UX ND 0.177 0.443 ng/L 0.0177 1 Hydro -EVE UX ND 0.177 0.443 ng/L 0.0177 1 Nation Byproduct 1 (PFESA BPI) UX ND 0.177 0.443 ng/L 0.0177 1 Nafion Byproduct 2 (PFESA BP2) UX ND 0.177 0.443 ng/L 0.0177 1 Nonafluoro-3,6-dioxahepanoic U ND 0.177 0.443 ng/L 0.0177 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.177 0.443 ng/L 0.0177 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.177 0.443 ng/L 0.0177 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.177 0.443 ng/L 0.0177 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid XU ND 0.177 0.443 ng/L 0.0177 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.177 0.443 ng/L 0.0177 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.177 0.443 ng/L 0.0177 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.177 0.443 ng/L 0.0177 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.177 0.443 ng/L 0.0177 1 (EVE) Perfluoropropanoic acid (PFPrA) BX 13.6 1.33 3.54 ng/L 0.0177 1 R-EVE UX ND 1.17 3.54 ng/L 0.0177 1 Perfluoro(3,5,7,9,1 1 - UX ND 0.177 0.443 ng/L 0.0177 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.177 0.443 ng/L 0.0177 1 (pentafluoroethoxy)propanoic acid Page 7 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-EFF-20230308 Project: NCDQ00123 Sample ID: 613703002 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PEPA) Perfluoro-2- UX ND 0.177 0.354 ng/L 0.0177 1 (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- U ND 0.585 1.77 ng/L 0.0177 1 JMB3 03/20/23 1037 2400729 2 oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- U ND 1.17 3.54 ng/L 0.0177 1 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND 1.17 3.54 ng/L 0.0177 1 octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND 1.17 3.48 ng/L 0.0177 1 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 6:2 (6:2 12.3 1.17 3.37 ng/L 0.0177 1 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 1.17 3.40 ng/L 0.0177 1 FTS) N-ethylperfluoro-I- U ND 1.17 3.54 ng/L 0.0177 1 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND 1.17 3.54 ng/L 0.0177 1 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- U ND 1.17 3.54 ng/L 0.0177 1 octanesulfonamide (N-McFOSA) N-methylperfluoro-1- U ND 1.17 3.54 ng/L 0.0177 1 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.585 3.54 ng/L 0.0177 1 (PFDoS) Perfluorobutanesulfonic acid (PFBS) 7.54 0.585 1.58 ng/L 0.0177 1 Perfluorobutanoic acid (PFBA) 6.65 0.709 1.77 ng/L 0.0177 1 Perfluorodecanesulfonic acid U ND 0.585 1.72 ng/L 0.0177 1 (PFDS) Perfluorodecanoic acid (PFDA) J 0.792 0.691 1.77 ng/L 0.0177 1 Perfluorododecanoic acid (PFDOA) U ND 0.585 1.77 ng/L 0.0177 1 Perfluoroheptanesulfonic acid U ND 0.585 1.68 ng/L 0.0177 1 (PFHpS) Page 8 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-EFF-20230308 Project: NCDQ00123 Sample ID: 613703002 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" Perfluoroheptanoic acid (PFHpA) 2.82 0.585 1.77 ng/L 0.0177 1 Perfluorohexadecanoic acid U ND 1.17 3.54 ng/L 0.0177 1 (PFHxDA) Perfluorohexanesulfonic acid 3.94 0.585 1.61 ng/L 0.0177 1 (PFHxS) Perfluorohexanoic acid (PFHxA) 16.3 0.709 1.77 ng/L 0.0177 1 Perfluorononanesulfonic acid U ND 0.620 1.70 ng/L 0.0177 1 (PFNS) Perfluorononanoic acid (PFNA) J 0.797 0.585 1.77 ng/L 0.0177 1 Perfluorooctadecanoic acid U ND 1.17 3.54 ng/L 0.0177 1 (PFODA) Perfluorooctanesulfonamide U ND 0.585 1.77 ng/L 0.0177 1 (PFOSA) Perfluorooctanesulfonic acid (PFOS) 7.51 0.709 1.77 ng/L 0.0177 1 Perfluorooctanoic acid (PFOA) 7.18 0.709 1.77 ng/L 0.0177 1 Perfluoropentanesulfonic acid J 0.732 0.585 1.67 ng/L 0.0177 1 (PFPeS) Perfluoropentanoic acid (PFPeA) 12.8 0.585 1.77 ng/L 0.0177 1 Perfluorotetradecanoic acid (PFTA) U ND 0.709 1.77 ng/L 0.0177 1 Perfluorotridecanoic Acid (PFTriA) U ND 0.585 1.77 ng/L 0.0177 1 Perfluoroundecanoic acid (PFUnA) U ND 0.585 1.77 ng/L 0.0177 1 4,8-Dioxa-3H-perfluorononanoic U ND 0.585 1.77 ng/L 0.0177 1 acid (DONA,ADONA) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 29.2 83.3 ng/L 0.0177 25 JMB3 03/20/23 1345 2400729 3 FTS) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified 3 EPA 537.1 Modified Notes: Page 9 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-EFF-20230308 Sample ID: 613703002 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 10 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-BIOS-20230308 Sample ID: 613703003 Matrix: Solid Collect Date: 08-MAR-23 11:58 Receive Date: 09-MAR-23 Collector: Client Moisture: 81.9% Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs LC-MS/MS EPA 537Mod PFAS, Solid "Dry Weight Corrected" 11-Chloroeicosafluoro-3- U ND 0.833 oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-l- J 2.41 1.99 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 8.10 1.97 octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 9.55 1.67 acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 24.9 1.67 acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic U ND 1.67 acid (3:3 FTCA)(FPrPA) 9-Chlorohexadecafluoro-3- U ND 0.833 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 2.02 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND 1.97 FTS) N-ethylperfluoro-1- U ND 2.07 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- J 4.32 1.39 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND 2.20 octanesulfonamide (N-McFOSA) N-methylperfluoro-l- 6.80 1.67 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.833 (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND 0.833 Perfluorobutanoic acid (PFBA) U ND 1.01 Perfluorodecanesulfonic acid J 1.18 0.833 (PFDS) Perfluorodecanoic acid (PFDA) U ND 1.87 Perfluorododecanoic acid (PFDOA) J 1.73 0.833 2.38 ng/g 4.57 1 MB2 03/18/23 1423 2400381 1 5.05 ng/g 4.57 1 5.05 ng/g 4.57 1 5.05 ng/g 4.57 1 5.05 ng/g 4.57 1 5.05 ng/g 4.57 1 2.35 ng/g 4.57 1 4.74 ng/g 4.57 1 4.80 ng/g 4.57 1 5.05 ng/g 4.57 1 5.05 ng/g 4.57 1 5.05 ng/g 4.57 1 5.05 ng/g 4.57 1 2.44 ng/g 4.57 1 2.25 ng/g 4.57 1 2.52 ng/g 4.57 1 2.45 ng/g 4.57 1 5.05 ng/g 4.57 1 2.52 ng/g 4.57 1 Page 11 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-BIOS-20230308 Sample ID: 613703003 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs LC-MS/MS EPA 537Mod PFAS, Solid "Dry Weight Corrected" Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND Perfluorohexanesulfonic acid U ND (PFHxS) Perfluorohexanoic acid (PFHxA) U ND Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctanesulfonamide J 1.03 (PFESA) Perfluorooctanesulfonic acid (PFOS) 9.72 Perfluorooctanoic acid (PFOA) U ND Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) U ND Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND Perfluoroundecanoic acid (PFUnA) J 0.911 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nation Byproduct 5 (PFESA BP5) UX ND Nation Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nation Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.934 2.40 ng/g 4.57 1 0.833 2.52 ng/g 4.57 1 0.833 2.30 ng/g 4.57 1 1.01 2.52 ng/g 4.57 1 0.833 2.42 ng/g 4.57 1 0.833 2.52 ng/g 4.57 1 0.833 2.52 ng/g 4.57 1 1.01 2.52 ng/g 4.57 1 1.01 2.52 ng/g 4.57 1 0.833 2.37 ng/g 4.57 1 0.833 2.52 ng/g 4.57 1 1.01 2.52 ng/g 4.57 1 0.833 2.52 ng/g 4.57 1 0.833 2.52 ng/g 4.57 1 0.833 2.52 ng/g 4.57 1 1.67 5.05 ng/g 4.57 1 RR3 0.833 2.52 ng/g 4.57 1 1.67 5.05 ng/g 4.57 1 1.67 5.05 ng/g 4.57 1 1.67 5.05 ng/g 4.57 1 1.67 5.05 ng/g 4.57 1 1.67 5.05 ng/g 4.57 1 1.67 5.05 ng/g 4.57 1 1.67 5.05 ng/g 4.57 1 0.833 5.05 ng/g 4.57 1 0.833 2.52 ng/g 4.57 1 03/20/23 1514 2400381 2 Page 12 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-BIOS-20230308 Project: NCDQ00123 Sample ID: 613703003 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs LC-MS/MS EPA 537Mod PFAS, Solid "Dry Weight Corrected" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 1.67 5.05 ng/g 4.57 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 1.67 5.05 ng/g 4.57 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 1.67 5.05 ng/g 4.57 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 1.67 5.05 ng/g 4.57 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 1.67 5.05 ng/g 4.57 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 1.67 5.05 ng/g 4.57 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 1.67 5.05 ng/g 4.57 1 (EVE) R-EVE UX ND 1.67 5.05 ng/g 4.57 1 Perfluoro(3,5,7,9,1 1 - UX ND 1.67 5.05 ng/g 4.57 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 1.67 5.05 ng/g 4.57 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 1.67 5.05 ng/g 4.57 1 (perfluoromethoxy)propanoic acid (PMPA) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 9.72 24.2 ng/g 4.57 5 M132 03/18/23 1625 2400381 3 FTS) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Solid DK2 03/17/23 1309 2400378 EPA 537.1 Modified PFCs Extraction in Solid DK2 03/20/23 1339 2401162 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified 3 EPA 537.1 Modified Page 13 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-BIOS-20230308 Sample ID: 613703003 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Notes: Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 14 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-GUIS-20230308 Sample ID: 613703004 Matrix: Solid Collect Date: 08-MAR-23 13:43 Receive Date: 09-MAR-23 Collector: Client Moisture: 18.2% Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs LC-MS/MS EPA 537Mod PFAS, Solid "Dry Weight Corrected" 11-Chloroeicosafluoro-3- U ND 0.183 oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-l- U ND 0.439 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND 0.433 octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic U ND 0.367 acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic U ND 0.367 acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic U ND 0.367 acid (3:3 FTCA)(FPrPA) 9-Chlorohexadecafluoro-3- U ND 0.183 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 0.444 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND 0.433 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 0.428 FTS) N-ethylperfluoro-l- U ND 0.455 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND 0.305 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND 0.483 octanesulfonamide (N-McFOSA) N-methylperfluoro-l- J 0.367 0.367 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.183 (PFDoS) Perfluorobutanesulfonic acid (PFBS) J 0.406 0.183 Perfluorobutanoic acid (PFBA) J 0.395 0.222 Perfluorodecanesulfonic acid U ND 0.183 (PFDS) 0.523 ng/g 4.55 1 MB2 03/21/23 1710 2401164 1 1.11 ng/g 4.55 1 1.11 ng/g 4.55 1 1.11 ng/g 4.55 1 1.11 ng/g 4.55 1 1.11 ng/g 4.55 1 0.518 ng/g 4.55 1 1.04 ng/g 4.55 1 1.06 ng/g 4.55 1 1.07 ng/g 4.55 1 1.11 ng/g 4.55 1 1.11 ng/g 4.55 1 1.11 ng/g 4.55 1 1.11 ng/g 4.55 1 0.538 ng/g 4.55 1 0.494 ng/g 4.55 1 0.555 ng/g 4.55 1 0.539 ng/g 4.55 1 Page 15 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-GUIS-20230308 Sample ID: 613703004 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs LC-MS/MS EPA 537Mod PFAS, Solid "Dry Weight Corrected" Perfluorodecanoic acid (PFDA) 10.5 Perfluorododecanoic acid (PFDOA) 3.83 Perfluorohepanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) J 0.545 Perfluorohexanesulfonic acid U ND (PFHxS) Perfluorohexanoic acid (PFHxA) 0.680 Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) 2.41 Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) 3.81 Perfluorooctanoic acid (PFDA) 4.17 Perfluoropenanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) 1.71 Perfluorotetradecanoic acid (PFTA) 1.06 Perfluorotridecanoic Acid (PFTriA) J 0.477 Perfluoroundecanoic acid (PFUnA) 1.81 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- XU ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nafion Byproduct 5 (PFESA BP5) UX ND Nafion Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nafion Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND 0.411 1.11 ng/g 4.55 1 0.183 0.555 ng/g 4.55 1 0.206 0.528 ng/g 4.55 1 0.183 0.555 ng/g 4.55 1 0.183 0.505 ng/g 4.55 1 0.222 0.555 ng/g 4.55 1 0.183 0.533 ng/g 4.55 1 0.183 0.555 ng/g 4.55 1 0.183 0.555 ng/g 4.55 1 0.222 0.555 ng/g 4.55 1 0.222 0.555 ng/g 4.55 1 0.183 0.522 ng/g 4.55 1 0.183 0.555 ng/g 4.55 1 0.222 0.555 ng/g 4.55 1 0.183 0.555 ng/g 4.55 1 0.183 0.555 ng/g 4.55 1 0.183 0.555 ng/g 4.55 1 0.367 1.11 ng/g 4.55 1 RR3 03/22/23 2005 2401164 2 0.183 0.555 ng/g 4.55 1 0.367 1.11 ng/g 4.55 1 0.367 1.11 ng/g 4.55 1 0.367 1.11 ng/g 4.55 1 0.367 1.11 ng/g 4.55 1 0.367 1.11 ng/g 4.55 1 0.367 1.11 ng/g 4.55 1 0.367 1.11 ng/g 4.55 1 Page 16 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-GUIS-20230308 Project: NCDQ00123 Sample ID: 613703004 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs LC-MS/MS EPA 537Mod PFAS, Solid "Dry Weight Corrected" Nonafluoro-3,6-dioxahepanoic U ND 0.183 1.11 ng/g 4.55 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.183 0.555 ng/g 4.55 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.367 1.11 ng/g 4.55 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.367 1.11 ng/g 4.55 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.367 1.11 ng/g 4.55 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.367 1.11 ng/g 4.55 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.367 1.11 ng/g 4.55 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.367 1.11 ng/g 4.55 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.367 1.11 ng/g 4.55 1 (EVE) R-EVE UX ND 0.367 1.11 ng/g 4.55 1 Perfluoro(3,5,7,9,11- UX ND 0.367 1.11 ng/g 4.55 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.367 1.11 ng/g 4.55 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.367 1.11 ng/g 4.55 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Solid DK2 03/17/23 1309 2400378 EPA 537.1 Modified PFCs Extraction in Solid DK2 03/20/23 1339 2401162 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified Page 17 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-GUIS-20230308 Sample ID: 613703004 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Notes: Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 18 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: TB-Asheboro-20230308 Sample ID: 613703005 Matrix: Water Collect Date: 08-MAR-23 09:52 Receive Date: 09-MAR-23 Collector: Client Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid(F- 53B Minor) 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND FTS) Fluorotelomer sulfonic acid 6:2 (6:2 BJ 1.98 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) N-ethylperfluoro-1- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-l- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) U ND Perfluorodecanesulfonic acid U ND (PFDS) Perfluorodecanoic acid (PFDA) U ND Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND Perfluorohexadecanoic acid U ND 0.641 1.94 ng/L 0.0194 1 JMB3 03/21/23 1006 2401145 1 1.28 3.89 ng/L 0.0194 1 1.28 3.89 ng/L 0.0194 1 1.28 3.82 ng/L 0.0194 1 1.28 3.65 ng/L 0.0194 1 1.28 3.69 ng/L 0.0194 1 1.28 3.73 ng/L 0.0194 1 1.28 3.89 ng/L 0.0194 1 1.28 3.89 ng/L 0.0194 1 1.28 3.89 ng/L 0.0194 1 1.28 3.89 ng/L 0.0194 1 0.641 3.89 ng/L 0.0194 1 0.641 1.73 ng/L 0.0194 1 0.777 1.94 ng/L 0.0194 1 0.641 1.89 ng/L 0.0194 1 0.758 1.94 ng/L 0.0194 1 0.641 1.94 ng/L 0.0194 1 0.641 1.85 ng/L 0.0194 1 0.641 1.94 ng/L 0.0194 1 1.28 3.89 ng/L 0.0194 1 Page 19 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: TB-Asheboro-20230308 Sample ID: 613703005 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PFHxDA) Perfluorohexanesulfonic acid U ND (PFHxS) Perfluorohexanoic acid (PFHxA) U ND Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctadecanoic acid U ND (PFODA) Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) U ND Perfluorooctanoic acid (PFOA) U ND Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) U ND Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND Perfluoroundecanoic acid (PFUnA) U ND 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) 1,1,2,2-Tctrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nation Byproduct 5 (PFESA BP5) UX ND Nation Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nation Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.641 1.77 ng/L 0.0194 1 0.777 1.94 ng/L 0.0194 1 0.680 1.87 ng/L 0.0194 1 0.641 1.94 ng/L 0.0194 1 1.28 3.89 ng/L 0.0194 1 0.641 1.94 ng/L 0.0194 1 0.777 1.94 ng/L 0.0194 1 0.777 1.94 ng/L 0.0194 1 0.641 1.83 ng/L 0.0194 1 0.641 1.94 ng/L 0.0194 1 0.777 1.94 ng/L 0.0194 1 0.641 1.94 ng/L 0.0194 1 0.641 1.94 ng/L 0.0194 1 0.641 1.94 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 RR3 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 0.194 0.486 ng/L 0.0194 1 03/21/23 1311 2401145 2 Page 20 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: TB-Asheboro-20230308 Project: NCDQ00123 Sample ID: 613703005 Client ID: NCDQ001 April 4, 2023 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.194 0.486 ng/L 0.0194 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.194 0.486 ng/L 0.0194 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.194 0.486 ng/L 0.0194 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.194 0.486 ng/L 0.0194 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.194 0.486 ng/L 0.0194 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.194 0.486 ng/L 0.0194 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.194 0.486 ng/L 0.0194 1 (EVE) Perfluoropropanoic acid (PFPrA) BX 4.84 1.46 3.89 ng/L 0.0194 1 R-EVE UX ND 1.28 3.89 ng/L 0.0194 1 Perfluoro(3,5,7,9,1 I - UX ND 0.194 0.486 ng/L 0.0194 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.194 0.486 ng/L 0.0194 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.194 0.389 ng/L 0.0194 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid BPI 03/20/23 1412 2401141 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified Notes: Page 21 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: TB-Asheboro-20230308 Sample ID: 613703005 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 22 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: AsheboroWWTP-FRB-20230308 Sample ID: 613703006 Matrix: Water Collect Date: 08-MAR-23 11:14 Receive Date: 09-MAR-23 Collector: Client Parameter Qualifier Result LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid(F- 53B Minor) 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) N-ethylperfluoro-1- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-l- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) U ND Perfluorodecanesulfonic acid U ND (PFDS) Perfluorodecanoic acid (PFDA) U ND Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND Perfluorohexadecanoic acid U ND Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 DL RL Units PF DF Analyst Date Time Batch Method 0.629 1.91 ng/L 0.0191 1 JMB3 03/20/23 1046 2400729 1 1.26 3.81 ng/L 0.0191 1 1.26 3.81 ng/L 0.0191 1 1.26 3.74 ng/L 0.0191 1 1.26 3.58 ng/L 0.0191 1 1.26 3.62 ng/L 0.0191 1 1.26 3.66 ng/L 0.0191 1 1.26 3.81 ng/L 0.0191 1 1.26 3.81 ng/L 0.0191 1 1.26 3.81 ng/L 0.0191 1 1.26 3.81 ng/L 0.0191 1 0.629 3.81 ng/L 0.0191 1 0.629 1.70 ng/L 0.0191 1 0.762 1.91 ng/L 0.0191 1 0.629 1.85 ng/L 0.0191 1 0.743 1.91 ng/L 0.0191 1 0.629 1.91 ng/L 0.0191 1 0.629 1.81 ng/L 0.0191 1 0.629 1.91 ng/L 0.0191 1 1.26 3.81 ng/L 0.0191 1 Page 23 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: AsheboroWWTP-FRB-20230308 Project: NCDQ00123 Sample ID: 613703006 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PFHxDA) Perfluorohexanesulfonic acid U ND 0.629 1.73 ng/L 0.0191 1 (PFHxS) Perfluorohexanoic acid (PFHxA) U ND 0.762 1.91 ng/L 0.0191 1 Perfluorononanesulfonic acid U ND 0.667 1.83 ng/L 0.0191 1 (PFNS) Perfluorononanoic acid (PFNA) U ND 0.629 1.91 ng/L 0.0191 1 Perfluorooctadecanoic acid U ND 1.26 3.81 ng/L 0.0191 1 (PFODA) Perfluorooctanesulfonamide U ND 0.629 1.91 ng/L 0.0191 1 (PFESA) Perfluorooctanesulfonic acid (PFOS) U ND 0.762 1.91 ng/L 0.0191 1 Perfluorooctanoic acid (PFOA) U ND 0.762 1.91 ng/L 0.0191 1 Perfluoropentanesulfonic acid U ND 0.629 1.79 ng/L 0.0191 1 (PFPeS) Perfluoropentanoic acid (PFPeA) U ND 0.629 1.91 ng/L 0.0191 1 Perfluorotetradecanoic acid (PFTA) U ND 0.762 1.91 ng/L 0.0191 1 Perfluorotridecanoic Acid (PFTriA) U ND 0.629 1.91 ng/L 0.0191 1 Perfluoroundecanoic acid (PFUnA) U ND 0.629 1.91 ng/L 0.0191 1 4,8-Dioxa-3H-perfluorononanoic U ND 0.629 1.91 ng/L 0.0191 1 acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND 0.191 0.476 ng/L 0.0191 1 RR3 03/20/23 1931 2400729 2 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND 0.191 0.476 ng/L 0.0191 1 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 0.191 0.476 ng/L 0.0191 1 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND 0.191 0.476 ng/L 0.0191 1 Nation Byproduct 5 (PFESA BP5) UX ND 0.191 0.476 ng/L 0.0191 1 Nation Byproduct 6 (PFESA BP6) UX ND 0.191 0.476 ng/L 0.0191 1 Hydro -EVE UX ND 0.191 0.476 ng/L 0.0191 1 Nation Byproduct 1 (PFESA BPI) UX ND 0.191 0.476 ng/L 0.0191 1 Nafion Byproduct 2 (PFESA BP2) UX ND 0.191 0.476 ng/L 0.0191 1 Nonafluoro-3,6-dioxaheptanoic U ND 0.191 0.476 ng/L 0.0191 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.191 0.476 ng/L 0.0191 1 Page 24 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: AsheboroWWTP-FRB-20230308 Project: NCDQ00123 Sample ID: 613703006 Client ID: NCDQ001 April 4, 2023 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.191 0.476 ng/L 0.0191 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.191 0.476 ng/L 0.0191 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.191 0.476 ng/L 0.0191 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.191 0.476 ng/L 0.0191 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.191 0.476 ng/L 0.0191 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.191 0.476 ng/L 0.0191 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.191 0.476 ng/L 0.0191 1 (EVE) Perfluoropropanoic acid (PFPrA) BX 6.16 1.43 3.81 ng/L 0.0191 1 R-EVE UX ND 1.26 3.81 ng/L 0.0191 1 Perfluoro(3,5,7,9,11- UX ND 0.191 0.476 ng/L 0.0191 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.191 0.476 ng/L 0.0191 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.191 0.381 ng/L 0.0191 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified Notes: Page 25 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: AsheboroWWTP-FRB-20230308 Sample ID: 613703006 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 26 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: AsheboroField-FRB-20230308 Project: NCDQ00123 Sample ID: 613703007 Client ID: NCDQ001 Matrix: Water Collect Date: 08-MAR-23 12:56 Receive Date: 09-MAR-23 Collector: Client Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND 0.190 0.476 ng/L 0.0190 1 RR3 03/20/23 1946 2400729 1 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND 0.190 0.476 ng/L 0.0190 1 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 0.190 0.476 ng/L 0.0190 1 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nation Byproduct 4 (PFESA BP4) UX ND 0.190 0.476 ng/L 0.0190 1 Nafion Byproduct 5 (PFESA BP5) UX ND 0.190 0.476 ng/L 0.0190 1 Nafion Byproduct 6 (PFESA BP6) UX ND 0.190 0.476 ng/L 0.0190 1 Hydro -EVE UX ND 0.190 0.476 ng/L 0.0190 1 Nation Byproduct 1 (PFESA BPI) UX ND 0.190 0.476 ng/L 0.0190 1 Nafion Byproduct 2 (PFESA BP2) UX ND 0.190 0.476 ng/L 0.0190 1 Nonafluoro-3,6-dioxahepanoic U ND 0.190 0.476 ng/L 0.0190 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.190 0.476 ng/L 0.0190 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.190 0.476 ng/L 0.0190 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.190 0.476 ng/L 0.0190 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.190 0.476 ng/L 0.0190 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.190 0.476 ng/L 0.0190 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.190 0.476 ng/L 0.0190 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.190 0.476 ng/L 0.0190 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.190 0.476 ng/L 0.0190 1 (EVE) Perfluoropropanoic acid (PFPrA) BX 5.87 1.43 3.81 ng/L 0.0190 1 R-EVE UX ND 1.26 3.81 ng/L 0.0190 1 Perfluoro(3,5,7,9,1 1 - UX ND 0.190 0.476 ng/L 0.0190 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.190 0.476 ng/L 0.0190 1 (pentafluoroethoxy)propanoic acid Page 27 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: AsheboroField-FRB-20230308 Project: NCDQ00123 Sample ID: 613703007 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PEPA) Perfluoro-2- UX ND 0.190 0.381 ng/L 0.0190 1 (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- U ND 0.628 1.90 ng/L 0.0190 1 JMB3 03/20/23 1055 2400729 2 oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- U ND 1.26 3.81 ng/L 0.0190 1 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND 1.26 3.81 ng/L 0.0190 1 octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND 1.26 3.74 ng/L 0.0190 1 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 1.26 3.58 ng/L 0.0190 1 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND 1.26 3.62 ng/L 0.0190 1 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 1.26 3.65 ng/L 0.0190 1 FTS) N-ethylperfluoro-1- U ND 1.26 3.81 ng/L 0.0190 1 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND 1.26 3.81 ng/L 0.0190 1 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- U ND 1.26 3.81 ng/L 0.0190 1 octanesulfonamide (N-McFOSA) N-methylperfluoro-1- U ND 1.26 3.81 ng/L 0.0190 1 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.628 3.81 ng/L 0.0190 1 (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND 0.628 1.69 ng/L 0.0190 1 Perfluorobutanoic acid (PFBA) U ND 0.761 1.90 ng/L 0.0190 1 Perfluorodecanesulfonic acid U ND 0.628 1.85 ng/L 0.0190 1 (PFDS) Perfluorodecanoic acid (PFDA) U ND 0.742 1.90 ng/L 0.0190 1 Perfluorododecanoic acid (PFDOA) U ND 0.628 1.90 ng/L 0.0190 1 Page 28 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: AsheboroField-FRB-20230308 Project: NCDQ00123 Sample ID: 613703007 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" Perfluoroheptanesulfonic acid U ND 0.628 1.81 ng/L 0.0190 1 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND 0.628 1.90 ng/L 0.0190 1 Perfluorohexadecanoic acid U ND 1.26 3.81 ng/L 0.0190 1 (PFHxDA) Perfluorohexanesulfonic acid U ND 0.628 1.73 ng/L 0.0190 1 (PFHxS) Perfluorohexanoic acid (PFHxA) U ND 0.761 1.90 ng/L 0.0190 1 Perfluorononanesulfonic acid U ND 0.666 1.83 ng/L 0.0190 1 (PFNS) Perfluorononanoic acid (PFNA) U ND 0.628 1.90 ng/L 0.0190 1 Perfluorooctadecanoic acid U ND 1.26 3.81 ng/L 0.0190 1 (PFODA) Perfluorooctanesulfonamide U ND 0.628 1.90 ng/L 0.0190 1 (PFOSA) Perfluorooctanesulfonic acid (PFOS) U ND 0.761 1.90 ng/L 0.0190 1 Perfluorooctanoic acid (PFOA) U ND 0.761 1.90 ng/L 0.0190 1 Perfluoropentanesulfonic acid U ND 0.628 1.79 ng/L 0.0190 1 (PFPeS) Perfluoropentanoic acid (PFPeA) U ND 0.628 1.90 ng/L 0.0190 1 Perfluorotetradecanoic acid (PFTA) U ND 0.761 1.90 ng/L 0.0190 1 Perfluorotridecanoic Acid (PFTriA) U ND 0.628 1.90 ng/L 0.0190 1 Perfluoroundecanoic acid (PFUnA) U ND 0.628 1.90 ng/L 0.0190 1 4,8-Dioxa-3H-perfluorononanoic U ND 0.628 1.90 ng/L 0.0190 1 acid (DONA,ADONA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified Notes: Page 29 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: AsheboroField-FRB-20230308 Sample ID: 613703007 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 30 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-ExtendableDipper Sample ID: 613703008 Matrix: Water Collect Date: 08-MAR-23 08:31 Receive Date: 09-MAR-23 Collector: Client Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid(F- 53B Minor) 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) N-ethylperfluoro-1- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-l- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) U ND Perfluorodecanesulfonic acid U ND (PFDS) Perfluorodecanoic acid (PFDA) U ND Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND Perfluorohexadecanoic acid U ND 0.594 1.80 ng/L 0.0180 1 JMB3 03/20/23 1104 2400729 1 1.19 3.60 ng/L 0.0180 1 1.19 3.60 ng/L 0.0180 1 1.19 3.53 ng/L 0.0180 1 1.19 3.38 ng/L 0.0180 1 1.19 3.42 ng/L 0.0180 1 1.19 3.46 ng/L 0.0180 1 1.19 3.60 ng/L 0.0180 1 1.19 3.60 ng/L 0.0180 1 1.19 3.60 ng/L 0.0180 1 1.19 3.60 ng/L 0.0180 1 0.594 3.60 ng/L 0.0180 1 0.594 1.60 ng/L 0.0180 1 0.720 1.80 ng/L 0.0180 1 0.594 1.75 ng/L 0.0180 1 0.702 1.80 ng/L 0.0180 1 0.594 1.80 ng/L 0.0180 1 0.594 1.71 ng/L 0.0180 1 0.594 1.80 ng/L 0.0180 1 1.19 3.60 ng/L 0.0180 1 Page 31 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-ExtendableDipper Sample ID: 613703008 Parameter Qualifier Result LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PFHxDA) Perfluorohexanesulfonic acid U ND (PFHxS) Perfluorohexanoic acid (PFHxA) U ND Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctadecanoic acid U ND (PFODA) Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) U ND Perfluorooctanoic acid (PFOA) U ND Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) U ND Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND Perfluoroundecanoic acid (PFUnA) U ND 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) 1,1,2,2-Tctrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nation Byproduct 5 (PFESA BP5) UX ND Nation Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nation Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 DL RL Units PF DF Analyst Date Time Batch Method 0.594 1.64 ng/L 0.0180 1 0.720 1.80 ng/L 0.0180 1 0.630 1.73 ng/L 0.0180 1 0.594 1.80 ng/L 0.0180 1 1.19 3.60 ng/L 0.0180 1 0.594 1.80 ng/L 0.0180 1 0.720 1.80 ng/L 0.0180 1 0.720 1.80 ng/L 0.0180 1 0.594 1.69 ng/L 0.0180 1 0.594 1.80 ng/L 0.0180 1 0.720 1.80 ng/L 0.0180 1 0.594 1.80 ng/L 0.0180 1 0.594 1.80 ng/L 0.0180 1 0.594 1.80 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 RR3 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 0.180 0.450 ng/L 0.0180 1 03/20/23 2002 2400729 2 Page 32 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-ExtendableDipper Project: NCDQ00123 Sample ID: 613703008 Client ID: NCDQ001 April 4, 2023 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.180 0.450 ng/L 0.0180 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.180 0.450 ng/L 0.0180 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.180 0.450 ng/L 0.0180 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.180 0.450 ng/L 0.0180 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.180 0.450 ng/L 0.0180 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.180 0.450 ng/L 0.0180 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.180 0.450 ng/L 0.0180 1 (EVE) Perfluoropropanoic acid (PFPrA) BJX 3.35 1.35 3.60 ng/L 0.0180 1 R-EVE UX ND 1.19 3.60 ng/L 0.0180 1 Perfluoro(3,5,7,9,11- UX ND 0.180 0.450 ng/L 0.0180 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.180 0.450 ng/L 0.0180 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.180 0.360 ng/L 0.0180 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified Notes: Page 33 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-ExtendableDipper Sample ID: 613703008 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 34 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Trowel Sample ID: 613703009 Matrix: Water Collect Date: 08-MAR-23 08:26 Receive Date: 09-MAR-23 Collector: Client Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid(F- 53B Minor) 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) N-ethylperfluoro-1- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-l- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) U ND Perfluorodecanesulfonic acid U ND (PFDS) Perfluorodecanoic acid (PFDA) U ND Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND Perfluorohexadecanoic acid U ND 0.602 1.82 ng/L 0.0182 1 JMB3 03/20/23 1113 2400729 1 1.20 3.65 ng/L 0.0182 1 1.20 3.65 ng/L 0.0182 1 1.20 3.58 ng/L 0.0182 1 1.20 3.43 ng/L 0.0182 1 1.20 3.46 ng/L 0.0182 1 1.20 3.50 ng/L 0.0182 1 1.20 3.65 ng/L 0.0182 1 1.20 3.65 ng/L 0.0182 1 1.20 3.65 ng/L 0.0182 1 1.20 3.65 ng/L 0.0182 1 0.602 3.65 ng/L 0.0182 1 0.602 1.62 ng/L 0.0182 1 0.729 1.82 ng/L 0.0182 1 0.602 1.77 ng/L 0.0182 1 0.711 1.82 ng/L 0.0182 1 0.602 1.82 ng/L 0.0182 1 0.602 1.73 ng/L 0.0182 1 0.602 1.82 ng/L 0.0182 1 1.20 3.65 ng/L 0.0182 1 Page 35 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Trowel Sample ID: 613703009 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PFHxDA) Perfluorohexanesulfonic acid U ND (PFHxS) Perfluorohexanoic acid (PFHxA) U ND Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctadecanoic acid U ND (PFODA) Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) U ND Perfluorooctanoic acid (PFOA) U ND Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) U ND Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND Perfluoroundecanoic acid (PFUnA) U ND 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) 1,1,2,2-Tctrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nation Byproduct 5 (PFESA BP5) UX ND Nation Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nation Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.602 1.66 ng/L 0.0182 1 0.729 1.82 ng/L 0.0182 1 0.638 1.75 ng/L 0.0182 1 0.602 1.82 ng/L 0.0182 1 1.20 3.65 ng/L 0.0182 1 0.602 1.82 ng/L 0.0182 1 0.729 1.82 ng/L 0.0182 1 0.729 1.82 ng/L 0.0182 1 0.602 1.71 ng/L 0.0182 1 0.602 1.82 ng/L 0.0182 1 0.729 1.82 ng/L 0.0182 1 0.602 1.82 ng/L 0.0182 1 0.602 1.82 ng/L 0.0182 1 0.602 1.82 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 RR3 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 0.182 0.456 ng/L 0.0182 1 03/20/23 2017 2400729 2 Page 36 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Trowel Project: NCDQ00123 Sample ID: 613703009 Client ID: NCDQ001 April 4, 2023 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.182 0.456 ng/L 0.0182 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.182 0.456 ng/L 0.0182 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.182 0.456 ng/L 0.0182 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.182 0.456 ng/L 0.0182 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.182 0.456 ng/L 0.0182 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.182 0.456 ng/L 0.0182 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.182 0.456 ng/L 0.0182 1 (EVE) Perfluoropropanoic acid (PFPrA) BJX 3.40 1.37 3.65 ng/L 0.0182 1 R-EVE UX ND 1.20 3.65 ng/L 0.0182 1 Perfluoro(3,5,7,9,11- UX ND 0.182 0.456 ng/L 0.0182 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.182 0.456 ng/L 0.0182 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.182 0.365 ng/L 0.0182 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified Notes: Page 37 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Trowel Sample ID: 613703009 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 38 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Soil probe Sample ID: 613703010 Matrix: Water Collect Date: 08-MAR-23 08:20 Receive Date: 09-MAR-23 Collector: Client Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid(F- 53B Minor) 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) N-ethylperfluoro-1- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-l- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) U ND Perfluorodecanesulfonic acid U ND (PFDS) Perfluorodecanoic acid (PFDA) U ND Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND Perfluorohexadecanoic acid U ND 0.571 1.73 ng/L 0.0173 1 JMB3 03/20/23 1131 2400729 1 1.14 3.46 ng/L 0.0173 1 1.14 3.46 ng/L 0.0173 1 1.14 3.40 ng/L 0.0173 1 1.14 3.25 ng/L 0.0173 1 1.14 3.29 ng/L 0.0173 1 1.14 3.32 ng/L 0.0173 1 1.14 3.46 ng/L 0.0173 1 1.14 3.46 ng/L 0.0173 1 1.14 3.46 ng/L 0.0173 1 1.14 3.46 ng/L 0.0173 1 0.571 3.46 ng/L 0.0173 1 0.571 1.54 ng/L 0.0173 1 0.692 1.73 ng/L 0.0173 1 0.571 1.68 ng/L 0.0173 1 0.675 1.73 ng/L 0.0173 1 0.571 1.73 ng/L 0.0173 1 0.571 1.64 ng/L 0.0173 1 0.571 1.73 ng/L 0.0173 1 1.14 3.46 ng/L 0.0173 1 Page 39 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Soil probe Sample ID: 613703010 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PFHxDA) Perfluorohexanesulfonic acid U ND (PFHxS) Perfluorohexanoic acid (PFHxA) U ND Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctadecanoic acid U ND (PFODA) Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) U ND Perfluorooctanoic acid (PFOA) U ND Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) U ND Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND Perfluoroundecanoic acid (PFUnA) U ND 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) 1,1,2,2-Tctrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nation Byproduct 5 (PFESA BP5) UX ND Nation Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nation Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.571 1.57 ng/L 0.0173 1 0.692 1.73 ng/L 0.0173 1 0.605 1.66 ng/L 0.0173 1 0.571 1.73 ng/L 0.0173 1 1.14 3.46 ng/L 0.0173 1 0.571 1.73 ng/L 0.0173 1 0.692 1.73 ng/L 0.0173 1 0.692 1.73 ng/L 0.0173 1 0.571 1.63 ng/L 0.0173 1 0.571 1.73 ng/L 0.0173 1 0.692 1.73 ng/L 0.0173 1 0.571 1.73 ng/L 0.0173 1 0.571 1.73 ng/L 0.0173 1 0.571 1.73 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 RR3 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 0.173 0.432 ng/L 0.0173 1 03/20/23 2032 2400729 2 Page 40 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Soil probe Project: NCDQ00123 Sample ID: 613703010 Client ID: NCDQ001 April 4, 2023 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.173 0.432 ng/L 0.0173 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.173 0.432 ng/L 0.0173 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.173 0.432 ng/L 0.0173 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.173 0.432 ng/L 0.0173 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.173 0.432 ng/L 0.0173 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.173 0.432 ng/L 0.0173 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.173 0.432 ng/L 0.0173 1 (EVE) Perfluoropropanoic acid (PFPrA) BJX 3.01 1.30 3.46 ng/L 0.0173 1 R-EVE UX ND 1.14 3.46 ng/L 0.0173 1 Perfluoro(3,5,7,9,11- UX ND 0.173 0.432 ng/L 0.0173 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.173 0.432 ng/L 0.0173 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.173 0.346 ng/L 0.0173 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified Notes: Page 41 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Soil probe Sample ID: 613703010 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 42 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Dipper2 Sample ID: 613703011 Matrix: Water Collect Date: 08-MAR-23 08:46 Receive Date: 09-MAR-23 Collector: Client Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid(F- 53B Minor) 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) N-ethylperfluoro-1- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-l- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) U ND Perfluorodecanesulfonic acid U ND (PFDS) Perfluorodecanoic acid (PFDA) U ND Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND Perfluorohexadecanoic acid U ND 0.598 1.81 ng/L 0.0181 1 JMB3 03/20/23 1140 2400729 1 1.20 3.62 ng/L 0.0181 1 1.20 3.62 ng/L 0.0181 1 1.20 3.56 ng/L 0.0181 1 1.20 3.41 ng/L 0.0181 1 1.20 3.44 ng/L 0.0181 1 1.20 3.48 ng/L 0.0181 1 1.20 3.62 ng/L 0.0181 1 1.20 3.62 ng/L 0.0181 1 1.20 3.62 ng/L 0.0181 1 1.20 3.62 ng/L 0.0181 1 0.598 3.62 ng/L 0.0181 1 0.598 1.61 ng/L 0.0181 1 0.725 1.81 ng/L 0.0181 1 0.598 1.76 ng/L 0.0181 1 0.707 1.81 ng/L 0.0181 1 0.598 1.81 ng/L 0.0181 1 0.598 1.72 ng/L 0.0181 1 0.598 1.81 ng/L 0.0181 1 1.20 3.62 ng/L 0.0181 1 Page 43 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Dipper2 Sample ID: 613703011 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PFHxDA) Perfluorohexanesulfonic acid U ND (PFHxS) Perfluorohexanoic acid (PFHxA) U ND Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctadecanoic acid U ND (PFODA) Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) U ND Perfluorooctanoic acid (PFOA) U ND Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) U ND Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND Perfluoroundecanoic acid (PFUnA) U ND 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) 1,1,2,2-Tctrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nation Byproduct 5 (PFESA BP5) UX ND Nation Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nation Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.598 1.65 ng/L 0.0181 1 0.725 1.81 ng/L 0.0181 1 0.634 1.74 ng/L 0.0181 1 0.598 1.81 ng/L 0.0181 1 1.20 3.62 ng/L 0.0181 1 0.598 1.81 ng/L 0.0181 1 0.725 1.81 ng/L 0.0181 1 0.725 1.81 ng/L 0.0181 1 0.598 1.70 ng/L 0.0181 1 0.598 1.81 ng/L 0.0181 1 0.725 1.81 ng/L 0.0181 1 0.598 1.81 ng/L 0.0181 1 0.598 1.81 ng/L 0.0181 1 0.598 1.81 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 RR3 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 0.181 0.453 ng/L 0.0181 1 03/20/23 2102 2400729 2 Page 44 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling April 4, 2023 Client Sample ID: EB-CC-Dipper2 Project: NCDQ00123 Sample ID: 613703011 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.181 0.453 ng/L 0.0181 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.181 0.453 ng/L 0.0181 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.181 0.453 ng/L 0.0181 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.181 0.453 ng/L 0.0181 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.181 0.453 ng/L 0.0181 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.181 0.453 ng/L 0.0181 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.181 0.453 ng/L 0.0181 1 (EVE) Perfluoropropanoic acid (PFPrA) BJX 3.01 1.36 3.62 ng/L 0.0181 1 R-EVE UX ND 1.20 3.62 ng/L 0.0181 1 Perfluoro(3,5,7,9,11- UX ND 0.181 0.453 ng/L 0.0181 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.181 0.453 ng/L 0.0181 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.181 0.362 ng/L 0.0181 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified Notes: Page 45 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Dipper2 Sample ID: 613703011 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 46 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Dipperl Sample ID: 613703012 Matrix: Water Collect Date: 08-MAR-23 08:41 Receive Date: 09-MAR-23 Collector: Client Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" Fluorotelomer sulfonic acid 4:2 (4:2 U ND FTS) Perfluorodecanoic acid (PFDA) U ND Perfluoroheptanoic acid (PFHpA) U ND 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 6:2 (6:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) N-ethylperfluoro-1- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-l- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) U ND Perfluorodecanesulfonic acid U ND (PFDS) Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluorohexadecanoic acid U ND 6.08 17.3 ng/L 0.0184 5 JMB3 03/20/23 1327 2400729 3.59 9.21 ng/L 0.0184 5 3.04 9.21 ng/L 0.0184 5 0.608 1.84 ng/L 0.0184 1 JMB3 03/20/23 1149 2400729 1.22 3.68 ng/L 0.0184 1 1.22 3.68 ng/L 0.0184 1 1.22 3.62 ng/L 0.0184 1 1.22 3.50 ng/L 0.0184 1 1.22 3.54 ng/L 0.0184 1 1.22 3.68 ng/L 0.0184 1 1.22 3.68 ng/L 0.0184 1 1.22 3.68 ng/L 0.0184 1 1.22 3.68 ng/L 0.0184 1 0.608 3.68 ng/L 0.0184 1 0.608 1.64 ng/L 0.0184 1 0.737 1.84 ng/L 0.0184 1 0.608 1.79 ng/L 0.0184 1 0.608 1.84 ng/L 0.0184 1 0.608 1.75 ng/L 0.0184 1 1.22 3.68 ng/L 0.0184 1 0 4 Page 47 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Dipperl Sample ID: 613703012 Parameter Qualifier Result LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PFHxDA) Perfluorohexanesulfonic acid U ND (PFHxS) Perfluorohexanoic acid (PFHxA) U ND Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctadecanoic acid U ND (PFODA) Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) U ND Perfluorooctanoic acid (PFOA) U ND Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) U ND Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND Perfluoroundecanoic acid (PFUnA) U ND 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) 1,1,2,2-Tctrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nation Byproduct 5 (PFESA BP5) UX ND Nation Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nation Byproduct 1 (PFESA BPI) UX ND Nafion Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 DL RL Units PF DF Analyst Date Time Batch Method 0.608 1.68 ng/L 0.0184 1 0.737 1.84 ng/L 0.0184 1 0.645 1.77 ng/L 0.0184 1 0.608 1.84 ng/L 0.0184 1 1.22 3.68 ng/L 0.0184 1 0.608 1.84 ng/L 0.0184 1 0.737 1.84 ng/L 0.0184 1 0.737 1.84 ng/L 0.0184 1 0.608 1.73 ng/L 0.0184 1 0.608 1.84 ng/L 0.0184 1 0.737 1.84 ng/L 0.0184 1 0.608 1.84 ng/L 0.0184 1 0.608 1.84 ng/L 0.0184 1 0.608 1.84 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 RR3 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 0.184 0.460 ng/L 0.0184 1 03/20/23 2117 2400729 3 Page 48 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling April 4, 2023 Client Sample ID: EB-CC-Dipperl Project: NCDQ00123 Sample ID: 613703012 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) XU ND 0.184 0.460 ng/L 0.0184 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.184 0.460 ng/L 0.0184 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.184 0.460 ng/L 0.0184 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.184 0.460 ng/L 0.0184 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.184 0.460 ng/L 0.0184 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.184 0.460 ng/L 0.0184 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.184 0.460 ng/L 0.0184 1 (EVE) Perfluoropropanoic acid (PFPrA) BJX 2.48 1.38 3.68 ng/L 0.0184 1 R-EVE UX ND 1.22 3.68 ng/L 0.0184 1 Perfluoro(3,5,7,9,11- UX ND 0.184 0.460 ng/L 0.0184 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.184 0.460 ng/L 0.0184 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.184 0.368 ng/L 0.0184 1 (perfluoromethoxy)propanoic acid (PMPA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Notes: Page 49 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-Dipperl Sample ID: 613703012 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 50 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-MetalBucket Sample ID: 613703013 Matrix: Water Collect Date: 08-MAR-23 08:36 Receive Date: 09-MAR-23 Collector: Client Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 2-(N-ethylperfluoro-l- U ND octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND octanesulfonamido)-ethanol (N- McFOSE) Fluorotelomer sulfonic acid 6:2 (6:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) N-ethylperfluoro-l- U ND octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-l- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) U ND Perfluorododecanoic acid (PFDOA) U ND Perfluorohexadecanoic acid U ND (PFHxDA) Perfluorohexanoic acid (PFHxA) U ND Perfluorooctadecanoic acid U ND (PFODA) Perfluorooctanesulfonamide U ND (PFOSA) Perfluoropentanoic acid (PFPeA) U ND Perfluorotetradecanoic acid (PFTA) U ND Perfluorotridecanoic Acid (PFTriA) U ND 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 1.11 3.35 ng/L 0.0168 1 JMB3 03/20/23 1158 2400729 1 1.11 3.35 ng/L 0.0168 1 1.11 3.19 ng/L 0.0168 1 1.11 3.22 ng/L 0.0168 1 1.11 3.35 ng/L 0.0168 1 1.11 3.35 ng/L 0.0168 1 1.11 3.35 ng/L 0.0168 1 1.11 3.35 ng/L 0.0168 1 0.553 1.49 ng/L 0.0168 1 0.671 1.68 ng/L 0.0168 1 0.553 1.68 ng/L 0.0168 1 1.11 3.35 ng/L 0.0168 1 0.671 1.68 ng/L 0.0168 1 1.11 3.35 ng/L 0.0168 1 0.553 1.68 ng/L 0.0168 1 0.553 1.68 ng/L 0.0168 1 0.671 1.68 ng/L 0.0168 1 0.553 1.68 ng/L 0.0168 1 0.168 0.419 ng/L 0.0168 1 RR3 03/20/23 2132 2400729 0.168 0.419 ng/L 0.0168 1 0.168 0.419 ng/L 0.0168 1 ►F] Page 51 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-MetalBucket Sample ID: 613703013 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Naflon Byproduct 4 (PFESA BP4) UX ND 0.168 0.419 ng/L 0.0168 1 Nation Byproduct 5 (PFESA BP5) UX ND 0.168 0.419 ng/L 0.0168 1 Nafion Byproduct 6 (PFESA BP6) UX ND 0.168 0.419 ng/L 0.0168 1 Hydro -EVE UX ND 0.168 0.419 ng/L 0.0168 1 Nafion Byproduct 1 (PFESA BPI) UX ND 0.168 0.419 ng/L 0.0168 1 Naflon Byproduct 2 (PFESA BP2) UX ND 0.168 0.419 ng/L 0.0168 1 Nonafluoro-3,6-dioxahepanoic U ND 0.168 0.419 ng/L 0.0168 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.168 0.419 ng/L 0.0168 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.168 0.419 ng/L 0.0168 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.168 0.419 ng/L 0.0168 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.168 0.419 ng/L 0.0168 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.168 0.419 ng/L 0.0168 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.168 0.419 ng/L 0.0168 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.168 0.419 ng/L 0.0168 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.168 0.419 ng/L 0.0168 1 (EVE) Perfluoropropanoic acid (PFPrA) BJX 1.95 1.26 3.35 ng/L 0.0168 1 R-EVE UX ND 1.11 3.35 ng/L 0.0168 1 Perfluoro(3,5,7,9,1 I - UX ND 0.168 0.419 ng/L 0.0168 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.168 0.419 ng/L 0.0168 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 0.168 0.335 ng/L 0.0168 1 (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- U ND 2.77 8.38 ng/L 0.0168 5 JMB3 03/20/23 1336 2400729 3 oxaundecane-l-sulfonic acid (F- 53B Minor) Page 52 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: April 4, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-MetalBucket Project: NCDQ00123 Sample ID: 613703013 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 9-Chlorohexadecafluoro-3- U ND 5.53 16.5 ng/L 0.0168 5 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 5.53 15.8 ng/L 0.0168 5 FTS) Perfluorododecanesulfonic acid U ND 2.77 16.8 ng/L 0.0168 5 (PFDoS) Perfluorodecanesulfonic acid U ND 2.77 8.13 ng/L 0.0168 5 (PFDS) Perfluorodecanoic acid (PFDA) U ND 3.27 8.38 ng/L 0.0168 5 Perfluorohepanesulfonic acid U ND 2.77 7.96 ng/L 0.0168 5 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND 2.77 8.38 ng/L 0.0168 5 Perfluorohexanesulfonic acid U ND 2.77 7.63 ng/L 0.0168 5 (PFHxS) Perfluorononanesulfonic acid U ND 2.93 8.05 ng/L 0.0168 5 (PFNS) Perfluorononanoic acid (PFNA) U ND 2.77 8.38 ng/L 0.0168 5 Perfluorooctanesulfonic acid (PFOS) U ND 3.35 8.38 ng/L 0.0168 5 Perfluorooctanoic acid (PFDA) U ND 3.35 8.38 ng/L 0.0168 5 Perfluoropentanesulfonic acid U ND 2.77 7.88 ng/L 0.0168 5 (PFPeS) Perfluoroundecanoic acid (PFUnA) U ND 2.77 8.38 ng/L 0.0168 5 4,8-Dioxa-3H-perfluorononanoic U ND 2.77 8.38 ng/L 0.0168 5 acid (DONA,ADONA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 03/18/23 1649 2400727 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified 3 EPA 537.1 Modified Notes: Page 53 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: EB-CC-MetalBucket Sample ID: 613703013 Report Date: April 4, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method Column headers are defined as follows DF: Dilution Factor Lc/LC: Critical Level DL: Detection Limit PF: Prep Factor MDA: Minimum Detectable Activity RL: Reporting Limit MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit Page 54 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Company Address : Contact: Project: NCDENR 1641 Mail Service Center Raleigh, North Carolina 27607 Stephanie Zorio Biosolids Sampling Certificate of Analysis Report Date: April 4, 2023 Client Sample ID: NCO026123-BIOS-20230308 Project: NCD000123 Sample ID: 613703003 Client ID: NCD0001 Matrix: Solid Collect Date: 08-MAR-23 Receive Date: 09-MAR-23 Collector: Client Moisture: 81.9% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Gravimetric Solids 'As Received" The following Analytical Methods were performed Method Description ASTM D 2216 (Modified) Surrogate/Tracer Recovery Test Notes: The MDC is a sample specific MDC. TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Batch ID Recovery% Acceptable Limits Page 55 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-GUIS-20230308 Sample ID: 613703004 Matrix: Solid Collect Date: 08-MAR-23 Receive Date: 09-MAR-23 Collector: Client Moisture: 18.2% Report Date: Project: NCD000123 Client ID: NCD0001 April 4, 2023 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Gravimetric Solids 'As Received" The following Analytical Methods were performed Method Description 1 ASTM D 2216 (Modified) Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 56 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary NCDENR Renort Date: April 4, 2023 1641 Mail Service Center Raleigh, North Carolina Contact: Stephanie Zorio Workorder: 613703 Page 1 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 QC1205348953 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.7 x 17.4 ng/L 88 (60%-158%) RR3 03/18/23 03:41 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 18.6 21.3 ng/L 114 (59%-144%) JMB3 03/17/2310:50 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.7 19.3 ng/L 98 (67%-144%) RR3 03/18/23 03:41 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.7 x 20.4 ng/L 103 (58%-144%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.7 25.8 ng/L 131 * (54%-128%) JM133 03/17/23 10:50 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 19.7 28.2 ng/L 143 * (52%-141%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.7 23.9 ng/L 121 (67%-154%) acid (DONA,ADONA) 4- 19.7 x 20.5 ng/L 104 (73%-141%) RR3 03/18/23 03:41 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 18.4 20.1 ng/L 109 (68%-135%) JM133 03/17/2310:50 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.5 19.4 ng/L 105 (56%-151%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.8 16.2 ng/L 87 (60%-153%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 19.0 21.3 ng/L 112 (60%-141% FTS) Hydro -EVE 19.7 x 22.7 ng/L 115 (61%-148%) RR3 03/18/23 03:41 Page 57 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 2 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 N-ethylperfluoro-l- 19.7 26.9 ng/L 136 (23%-155%) JMB3 03/17/2310:50 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 19.7 22.4 ng/L 113 (57%-139%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 19.7 24.3 ng/L 123 (20%-154%) octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 19.7 28.7 ng/L 146* (59%-145%) octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct 1 (PFESA BPI) 19.7 X 13.6 ng/L 69 (35%-138%) RR3 03/18/23 03:41 Nation Byproduct 2 (PFESA BP2) 19.7 X 20.1 ng/L 102 (63%-143%) Nation Byproduct 4 (PFESA BP4) 19.7 X 2.63 ng/L 13 (5%-158%) Nation Byproduct 5 (PFESA BP5) 19.7 X 3.42 ng/L 17 (5%-149%) Nafion Byproduct 6 (PFESA BP6) 19.7 X 16.9 ng/L 86 (59%-145%) Nonafluoro-3,6-dioxahepanoic 19.7 20.9 ng/L 106 (48%-149%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.7 18.0 ng/L 91 (52%-148%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 19.7 x 22.0 ng/L 111 (58%-147%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.7 x 22.9 ng/L 116 (60%-151%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.7 x 20.4 ng/L 103 (62%-148% acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.7 X 19.6 ng/L 99 (60%-144% (PF02HxA) Page 58 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 3 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 Perfluoro(4-methoxybutanoic) acid 19.7 19.4 ng/L 98 (58%-142%) RR3 03/18/23 03:41 (PFMOBA) Perfluoro-2- 19.7 x 18.9 ng/L 96 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.7 x 19.3 ng/L 98 (52%-144%) (PFMOAA) Perfluoro-3-methoxypropanoic 19.7 19.6 ng/L 99 (60%-149%) acid (PFMOPrA) Perfluorobutanesulfonic acid 17.5 19.7 ng/L 113 (70%-144%) JMB3 03/17/23 10:50 (PFBS) Perfluorobutanoic acid (PFBA) 19.7 21.8 ng/L 110 (73%-151%) Perfluorohecanesulfonic acid 19.1 20.1 ng/L 106 (58%-134%) (PFDS) Perfluorodecanoic acid (PFDA) 19.7 22.5 ng/L 114 (65%-145%) Perfluorododecanesulfonic acid 19.1 20.1 ng/L 105 (57%-134%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.7 23.6 ng/L 120 (65%-137%) Perfluoroethoxypropionic acid 19.7 x 16.9 ng/L 86 (20%-160%) RR3 03/18/23 03:41 (EVE) Perfluoroheptanesulfonic acid 18.8 21.5 ng/L 115 (68%-138%) JMB3 03/17/23 10:50 (PFHpS) Perfluoroheptanoic acid (PFHpA) 19.7 23.6 ng/L 119 (71%-133% Perfluorohexadecanoic acid 19.7 22.2 ng/L 113 (69%-144% (PFHxDA) Perfluorohexanesulfonic acid 18.0 20.5 ng/L 114 (67%-145% (PFHxS) Page 59 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 4 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 Perfluorohexanoic acid (PFHxA) 19.7 24.8 ng/L 126 (70%-138%) JMB3 03/17/23 10:50 Perfluorononanesulfonic acid 19.0 20.0 ng/L 106 (64%-133%) (PFNS) Perfluorononanoic acid (PFNA) 19.7 19.7 ng/L 100 (69%-133%) Perfluorooctadecanoic acid 19.7 14.9 ng/L 75 (35%-165%) (PFODA) Perfluorooctanesulfonamide 19.7 22.1 ng/L 112 (64%-134%) (PFOSA) Perfluorooctanesulfonic acid 19.7 23.2 ng/L 117 (65%-145%) (PFOS) Perfluorooctanoic acid (PFOA) 19.7 23.2 ng/L 118 (66%-139%) Perfluoropentanesulfonic acid 18.6 20.9 ng/L 113 (67%-136%) (PFPeS) Perfluoropentanoic acid (PFPeA) 19.7 21.9 ng/L 111 (72%-143%) Perfluoropropanoic acid (PFPrA) 19.7 BX 23.9 ng/L 121 (49%-153%) RR3 03/18/23 03:41 Perfluorotetradecanoic acid (PFTA) 19.7 23.3 ng/L 118 (66%-138%) JMB3 03/17/23 10:50 Perfluorotridecanoic Acid (PFTriA) 19.7 23.0 ng/L 117 (58%-140%) Perfluoroundecanoic acid (PFUnA) 19.7 23.2 ng/L 117 (63%-135%) R-EVE 19.7 7X 3.54 ng/L 18 (5%-158%) RR3 03/18/23 03:41 QC1205348954 LCSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.4 X 19.3 ng/L 10 99 (0%-30%) 03/18/23 03:56 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) Page 60 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 5 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 11-Chloroeicosafluoro-3- 18.3 20.2 ng/L 5 111 (0%-27%) JMB3 03/17/2310:59 oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.4 21.8 ng/L 12 112 (0%-30%) RR3 03/18/23 03:56 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.4 x 22.8 ng/L 11 117 (0%-27%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.4 27.6 ng/L 7 142* (0%-28%) JMB3 03/17/2310:59 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- 19.4 28.6 ng/L 2 147* (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.4 25.4 ng/L 6 131 (0%-26%) acid (DONA,ADONA) 4- 19.4 x 23.3 ng/L 13 120 (0%-24%) RR3 03/18/23 03:56 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 18.1 24.2 ng/L 18 134 (0%-26%) JMB3 03/17/23 10:59 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.2 15.3 ng/L 24 84 (0%-32%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.4 21.1 ng/L 26 114 (0%-32%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 18.6 22.2 ng/L 4 119 (0%-36%) FTS) Hydro -EVE 19.4 x 25.9 ng/L 13 134 (0%-24%) RR3 03/18/23 03:56 N-ethylperfluoro-l- 19.4 25.3 ng/L 6 130 (0%-27%) JMB3 03/17/2310:59 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- 19.4 21.9 ng/L 2 113 (0%-27%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 19.4 28.8 ng/L 17 148 (0%-36%) octanesulfonamide (N-McFOSA) Page 61 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 6 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 N-methylperfluoro-I- 19.4 25.7 ng/L 11 132 (0%-27%) JMB3 03/17/2310:59 octanesulfonamidoacetic acid (N- McFOSAA) Nation Byproduct 1 (PFESA BPI) 19.4 x 17.9 ng/L 27 92 (0%-28%) RR3 03/18/23 03:56 Nafion Byproduct 2 (PFESA BP2) 19.4 x 22.9 ng/L 13 118 (0%-23%) Nafion Byproduct 4 (PFESA BP4) 19.4 x 2.53 ng/L 4 13 (0%-45%) Naflon Byproduct 5 (PFESA BP5) 19.4 x 2.91 ng/L 16 15 (0%-40%) Nafion Byproduct 6 (PFESA BP6) 19.4 x 20.4 ng/L 19 105 (0%-26%) Nonafluoro-3,6-dioxahepanoic 19.4 23.3 ng/L 11 120 (0%-27%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.4 21.5 ng/L 18 111 (0%-35%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 19.4 x 23.8 ng/L 8 123 (0%-40%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.4 x 23.5 ng/L 2 121 (0%-39%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.4 x 24.2 ng/L 17 125 (0%-36%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.4 x 21.3 ng/L 8 110 (0%-27%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 19.4 22.0 ng/L 13 114 (0%-29%) (PFMOBA) Perfluoro-2- 19.4 x 22.0 ng/L 15 113 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.4 x 22.2 ng/L 14 114 (0%-31%) (PFMOAA) Page 62 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 7 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 Perfluoro-3-methoxypropanoic 19.4 22.7 ng/L 15 117 (0%-25%) RR3 03/18/23 03:56 acid (PFMOPrA) Perfluorobutanesulfonic acid 17.2 19.6 ng/L 0 114 (0%-35%) JMB3 03/17/23 10:59 (PFBS) Perfluorobutanoic acid (PFBA) 19.4 24.4 ng/L 12 126 (0%-20%) Perfluorodecanesulfonic acid 18.7 21.8 ng/L 8 116 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 19.4 24.4 ng/L 8 125 (0%-31%) Perfluorododecanesulfonic acid 18.8 21.1 ng/L 5 112 (0%-32%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.4 23.5 ng/L 0 121 (0%-26%) Perfluoroethoxypropionic acid 19.4 X 20.8 ng/L 21 107 (0%-30%) RR3 03/18/23 03:56 (EVE) Perfluoroheptanesulfonic acid 18.4 23.4 ng/L 9 127 (0%-40%) JMB3 03/17/23 10:59 (PFHpS) Perfluorohepanoic acid (PFHpA) 19.4 23.4 ng/L 1 120 (0%-23%) Perfluorohexadecanoic acid 19.4 23.6 ng/L 6 122 (0%-26%) (PFHxDA) Perfluorohexanesulfonic acid 17.7 23.0 ng/L 11 130 (0%-27%) (PFHxS) Perfluorohexanoic acid (PFHxA) 19.4 26.0 ng/L 4 134 (0%-27%) Perfluorononanesulfonic acid 18.6 22.9 ng/L 13 123 (0%-27%) (PFNS) Perfluorononanoic acid (PFNA) 19.4 24.1 ng/L 20 124 (0%-25% Page 63 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 8 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 Perfluorooctadecanoic acid 19.4 11.5 ng/L 26 59 (0%-39%) JMB3 03/17/23 10:59 (PFODA) Perfluorooctanesulfonamide 19.4 22.7 ng/L 3 117 (0%-26%) (PFOSA) Perfluorooctanesulfonic acid 19.4 26.7 ng/L 14 138 (0%-25%) (PFOS) Perfluorooctanoic acid (PFOA) 19.4 23.2 ng/L 0 119 (0%-27%) Perfluoropentanesulfonic acid 18.3 21.8 ng/L 4 120 (0%-40%) (PFPeS) Perfluoropentanoic acid (PFPeA) 19.4 25.4 ng/L 15 131 (0%-25%) Perfluoropropanoic acid (PFPrA) 19.4 BX 25.4 ng/L 6 131 (0%-26%) RR3 03/18/23 03:56 Perfluorotetradecanoic acid (PFTA) 19.4 25.5 ng/L 9 131 (0%-26%) JMB3 03/17/23 10:59 Perfluorotridecanoic Acid (PFTriA) 19.4 24.7 ng/L 7 127 (0%-31%) Perfluoroundccanoic acid (PFUnA) 19.4 22.2 ng/L 4 114 (0%-30%) R-EVE 19.4 A 3.03 ng/L 15 16 (0%-26%) RR3 03/18/23 03:56 QC1205348952 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND ng/L 03/18/23 03:26 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/L JMB3 03/17/2310:42 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/L RR3 03/18/23 03:26 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- UX ND ng/L (pentafluoroethoxy)propanoic acid (PEPA) Page 64 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 9 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 2-(N-ethylperfluoro-l- U ND ng/L JMB3 03/17/2310:42 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-I- U ND ng/L octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic U ND ng/L acid (DONA,ADONA) 4- Ux ND ng/L RR3 03/18/23 03:26 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- U ND ng/L JMB3 03/17/2310:42 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND ng/L FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND ng/L FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND ng/L FTS) Hydro -EVE xU ND ng/L RR3 03/18/23 03:26 N-ethylperfluoro-I- U ND ng/L JMB3 03/17/2310:42 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND ng/L octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- U ND ng/L octanesulfonamide (N-McFOSA) N-methylperfluoro-I- U ND ng/L octanesulfonamidoacetic acid (N- McFOSAA) Nation Byproduct 1 (PFESA BPI) Ux ND ng/L RR3 03/18/23 03:26 Naflon Byproduct 2 (PFESA BP2) Ux ND ng/L Page 65 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 10 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 Nation Byproduct 4 (PFESA BP4) Ux ND ng/L RR3 03/18/23 03:26 Nation Byproduct 5 (PFESA BP5) Ux ND ng/L Nation Byproduct 6 (PFESA BP6) Ux ND ng/L Nonafluoro-316-dioxaheptanoic U ND ng/L acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND ng/L acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - Ux ND ng/L pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) Ux ND ng/L acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) Ux ND ng/L acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid Ux ND ng/L (PF02HxA) Perfluoro(4-methoxybutanoic) acid U ND ng/L (PFMOBA) Perfluoro-2- Ux ND ng/L (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid Ux ND ng/L (PFMOAA) Perfluoro-3-methoxypropanoic U ND ng/L acid (PFMOPrA) Perfluorobutanesulfonic acid U ND ng/L JMB3 03/17/23 10:42 (PFBS) Perfluorobutanoic acid (PFBA) U ND ng/L Page 66 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 11 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 Perfluorodecanesulfonic acid U ND ng/L JMB3 03/17/23 10:42 (PFDS) Perfluorodecanoic acid (PFDA) U ND ng/L Perfluorododecanesulfonic acid U ND ng/L (PFDoS) Perfluorododecanoic acid (PFDOA) U ND ng/L Perfluoroethoxypropionic acid UX ND ng/L RR3 03/18/23 03:26 (EVE) Perfluoroheptanesulfonic acid U ND ng/L JMB3 03/17/23 10:42 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND ng/L Perfluorohexadecanoic acid U ND ng/L (PFHxDA) Perfluorohexanesulfonic acid U ND ng/L (PFHxS) Perfluorohexanoic acid (PFHxA) U ND ng/L Perfluorononanesulfonic acid U ND ng/L (PFNS) Perfluorononanoic acid (PFNA) U ND ng/L Perfluorooctadecanoic acid U ND ng/L (PFODA) Perfluorooctanesulfonamide U ND ng/L (PFOSA) Perfluorooctanesulfonic acid U ND ng/L (PFOS) Page 67 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 12 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400161 Perfluorooctanoic acid (PFOA) U ND ng/L JMB3 03/17/23 10:42 Perfluoropentanesulfonic acid U ND ng/L (PFPeS) Perfluoropentanoic acid (PFPeA) U ND ng/L Perfluoropropanoic acid (PFPrA) X 5.83 ng/L RR3 03/18/23 03:26 Perfluorotetradecanoic acid (PFTA) U ND ng/L JMB3 03/17/23 10:42 Perfluorotridecanoic Acid (PFTriA) U ND ng/L Perfluoroundecanoic acid (PFUnA) U ND ng/L R-EVE UX ND ng/L RR3 03/18/23 03:26 Batch 2400381 QC1205349340 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 4.72 X 5.60 ng/g 119 (50%-150%) RR3 03/20/2314:59 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 4.44 5.91 ng/g 133 (69%-143%) MB2 03/18/2314:14 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 4.72 4.93 ng/g 104 (72%-137%) RR3 03/20/2314:59 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 4.72 X 5.57 ng/g 118 (59%-145%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 4.72 4.87 ng/g 103 (61%-131%) MB2 03/18/2314:14 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 4.72 5.02 ng/g 106 (66%-140%) octanesulfonamido)-ethanol (N- McFOSE) Page 68 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 13 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 2H,2H,3H,3H-Perfluorodecanoic 4.72 4.92 ng/g 104 (49%-150%) MB2 03/18/2314:14 acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 4.72 5.37 ng/g 114 (54%-145%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 4.72 5.06 ng/g 107 (59%-131%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 4.72 5.70 ng/g 121 (70%-135%) acid (DONA,ADONA) 4- 4.72 x 4.92 ng/g 104 (60%-141%) RR3 03/20/2314:59 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 4.40 5.78 ng/g 131 (66%-140%) M132 03/18/23 14:14 oxanonane-l-sulfonic acid (F-5313 Major) Fluorotelomer sulfonic acid 4:2 (4:2 4.41 4.51 ng/g 102 (63%-144%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 4.48 5.66 ng/g 126 (62%-148%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 4.53 5.64 ng/g 125 (65%-144%) FTS) Hydro -EVE 4.72 x 6.23 ng/g 132 (50%-150%) RR3 03/20/2314:59 N-ethylperfluoro-l- 4.72 5.65 ng/g 120 (73%-140%) M132 03/18/2314:14 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 4.72 5.00 ng/g 106 (66%-141%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 4.72 6.61 ng/g 140* (70%-136%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 4.72 6.60 ng/g 140 (68%-141%) octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct 1 (PFESA BPI) 4.72 x 5.34 ng/g 113 (63%-138%) RR3 03/20/23 14:59 Page 69 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 14 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Nation Byproduct 2 (PFESA BP2) 4.72 X 5.35 ng/g 113 (64%-142%) RR3 03/20/23 14:59 Nation Byproduct 4 (PFESA BP4) 4.72 X 5.26 ng/g 112 (50%-150%) Nation Byproduct 5 (PFESA BP5) 4.72 X 5.56 ng/g 118 (50%-150%) Naflon Byproduct 6 (PFESA BP6) 4.72 X 5.47 ng/g 116 (50%-150%) Nonafluoro-316-dioxaheptanoic 4.72 5.41 ng/g 115 (50%-150%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 4.72 5.52 ng/g 117 (50%-150%) acid (PFEESA or PES) Perfluoro(3,5,7,9,11- 4.72 X 4.84 ng/g 103 (58%-151%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 4.72 X 5.26 ng/g 112 (59%-158%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 4.72 x 4.80 ng/g 102 (58%-156%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 4.72 x 5.27 ng/g 112 (67%-142%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 4.72 5.36 ng/g 114 (64%-142%) (PFMOBA) Perfluoro-2- 4.72 X 5.40 ng/g 115 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 4.72 X 5.17 ng/g 110 (64%-146%) (PFMOAA) Perfluoro-3-methoxypropanoic 4.72 5.60 ng/g 119 (60%-159% acid (PFMOPrA) Perfluorobutanesulfonic acid 4.17 4.81 ng/g 115 (71%-136%) MB2 03/18/23 14:14 (PFBS) Page 70 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 15 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Perfluorobutanoic acid (PFBA) 4.72 5.72 ng/g 121 (66%-141%) MB2 03/18/23 14:14 Perfluorodecanesulfonic acid 4.55 5.95 ng/g 131 (70%-139%) (PFDS) Perfluorodecanoic acid (PFDA) 4.72 5.92 ng/g 125 (66%-139%) Perfluorododecanesulfonic acid 4.57 5.98 ng/g 131 (54%-148%) (PFDoS) Perfluorododecanoic acid (PFDOA) 4.72 5.73 ng/g 122 (70%-139%) Perfluoroethoxypropionic acid 4.72 X 5.28 ng/g 112 (50%-150%) RR3 03/20/23 14:59 (EVE) Perfluoroheptanesulfonic acid 4.48 5.45 ng/g 122 (72%-138%) MB2 03/18/23 14:14 (PFHpS) Perfluoroheptanoic acid (PFHpA) 4.72 4.77 ng/g 101 (72%-132%) Perfluorohexanesulfonic acid 4.30 5.20 ng/g 121 (68%-139%) (PFHxS) Perfluorohexanoic acid (PFHxA) 4.72 4.77 ng/g 101 (70%-135%) Perfluorononanesulfonic acid 4.53 5.95 ng/g 131 (60%-138%) (PFNS) Perfluorononanoic acid (PFNA) 4.72 5.39 ng/g 114 (70%-136%) Perfluorooctanesulfonamide 4.72 5.50 ng/g 117 (76%-138%) (PFOSA) Perfluorooctanesulfonic acid 4.72 5.94 ng/g 126 (73%-135%) (PFOS) Perfluorooctanoic acid (PFDA) 4.72 5.32 ng/g 113 (72%-135%) Page 71 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 16 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Perfluoropentanesulfonic acid 4.43 5.14 ng/g 116 (66%-138%) MB2 03/18/23 14:14 (PFPeS) Perfluoropentanoic acid (PFPeA) 4.72 5.19 ng/g 110 (72%-155%) Perfluorotetradecanoic acid (PFTA) 4.72 5.32 ng/g 113 (72%-139%) Perfluorotridecanoic Acid (PFTriA) 4.72 5.40 ng/g 115 (60%-149%) Perfluoroundecanoic acid (PFUnA) 4.72 5.44 ng/g 115 (70%-135%) R-EVE 4.72 X 5.66 ng/g 120 (50%-150%) RR3 03/20/2314:59 QC1205349339 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND ng/g 03/20/2314:44 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/g MB2 03/18/2314:05 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/g RR3 03/20/2314:44 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- UX ND ng/g (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- U ND ng/g MB2 03/18/2314:05 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND ng/g octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic U ND ng/g acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic U ND ng/g acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic U ND ng/g acid (3:3 FTCA)(FPrPA) Page 72 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 17 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 4,8-Dioxa-3H-perfluorononanoic U ND ng/g MB2 03/18/2314:05 acid (DONA,ADONA) 4- Ux ND ng/g RR3 03/20/2314:44 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- U ND ng/g MB2 03/18/23 14:05 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND ng/g FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND ng/g FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND ng/g FTS) Hydro -EVE Ux ND ng/g RR3 03/20/2314:44 N-ethylperfluoro-I- U ND ng/g MB2 03/18/2314:05 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND ng/g octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- U ND ng/g octanesulfonamide (N-McFOSA) N-methylperfluoro-I- U ND ng/g octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) Ux ND ng/g RR3 03/20/23 14:44 Naflon Byproduct 2 (PFESA BP2) Ux ND ng/g Nation Byproduct 4 (PFESA BP4) Ux ND ng/g Naflon Byproduct 5 (PFESA BP5) Ux ND ng/g Page 73 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 18 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Nation Byproduct 6 (PFECA BP6) Ux ND ng/g RR3 03/20/23 14:44 Nonafluoro-316-dioxaheptanoic U ND ng/g acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND ng/g acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - Ux ND ng/g pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) Ux ND ng/g acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) Ux ND ng/g acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid Ux ND ng/g (PF02HxA) Perfluoro(4-methoxybutanoic) acid U ND ng/g (PFMOBA) Perfluoro-2- Ux ND ng/g (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid Ux ND ng/g (PFMOAA) Perfluoro-3-methoxypropanoic U ND ng/g acid (PFMOPrA) Perfluorobutanesulfonic acid U ND ng/g MB2 03/18/23 14:05 (PFBS) Perfluorobutanoic acid (PFBA) U ND ng/g Perfluorodecanesulfonic acid U ND ng/g (PFDS) Perfluorodecanoic acid (PFDA) U ND ng/g Page 74 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 19 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Perfluorododecanesulfonic acid U ND ng/g MB2 03/18/23 14:05 (PFDoS) Perfluorododecanoic acid (PFDOA) U ND ng/g Perfluoroethoxypropionic acid UX ND ng/g RR3 03/20/23 14:44 (EVE) Perfluoroheptanesulfonic acid U ND ng/g MB2 03/18/23 14:05 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND ng/g Perfluorohexanesulfonic acid U ND ng/g (PFHxS) Perfluorohexanoic acid (PFHxA) U ND ng/g Perfluorononanesulfonic acid U ND ng/g (PFNS) Perfluorononanoic acid (PFNA) U ND ng/g Perfluorooctanesulfonamide U ND ng/g (PFOSA) Perfluorooctanesulfonic acid U ND ng/g (PFOS) Perfluorooctanoic acid (PFOA) U ND ng/g Perfluoropentanesulfonic acid U ND ng/g (PFPeS) Perfluoropentanoic acid (PFPeA) U ND ng/g Perfluorotetradecanoic acid (PFTA) U ND ng/g Page 75 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 20 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Perfluorotridecanoic Acid (PFTriA) U ND ng/g MB2 03/18/23 14:05 Perfluoroundecanoic acid (PFUnA) U ND ng/g R-EVE UX ND ng/g RR3 03/20/2314:44 QC1205349341 613703003 MS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 25.8 UX ND X 31.0 ng/g 120 (42%-158%) 03/20/2315:29 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 24.3 U ND 20.8 ng/g 85 (43%-141%) MB2 03/18/2314:31 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 25.8 U ND 34.3 ng/g 133 (61%-150%) RR3 03/20/2315:29 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 25.8 UX ND X 29.9 ng/g 116 (43%-154%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 25.8 7 2.41 18.0 ng/g 60 (49%-153%) MB2 03/18/2314:31 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 25.8 8.10 36.4 ng/g 110 (54%-154%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 25.8 9.55 44.4 ng/g 135 (30%-157%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 25.8 24.9 61.4 ng/g 141 (31%-158%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 25.8 U ND 33.4 ng/g 129 (32%-153%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 25.8 U ND 34.1 ng/g 132 (63%-143%) acid (DONA,ADONA) 4- 25.8 UX ND X 27.3 ng/g 106 (54%-161%) RR3 03/20/2315:29 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 24.1 U ND 23.4 ng/g 97 (62%-146%) MB2 03/18/2314:31 oxanonane-l-sulfonic acid (F-53B Major) Page 76 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 21 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Fluorotelomer sulfonic acid 4:2 (4:2 24.1 U ND 26.8 ng/g 111 (62%-148%) MB2 03/18/23 14:31 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 24.5 U ND 28.3 ng/g 115 (50%-153%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 24.8 U ND J 18.4 ng/g 74 (53%-158%) 03/18/23 16:33 FTS) Hydro -EVE 25.8 UX ND X 35.1 ng/g 136 (51 %-148%) RR3 03/20/23 15:29 N-ethylperfluoro-1- 25.8 U ND 30.6 ng/g 118 (48%-148%) MB2 03/18/2314:31 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- 25.8 J 4.32 31.9 ng/g 107 (65%-152%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 25.8 U ND 35.1 ng/g 136 (55%-151%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 25.8 6.80 47.5 ng/g 158 * (59%-152%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 25.8 UX ND X 31.0 ng/g 120 (60%-147%) RR3 03/20/23 15:29 Nation Byproduct 2 (PFESA BP2) 25.8 UX ND X 32.1 ng/g 124 (65%-150%) Nafion Byproduct 4 (PFESA BP4) 25.8 UX ND X 121 ng/g 470 * (40%-160%) Nafion Byproduct 5 (PFESA BP5) 25.8 UX ND X 86.0 ng/g 333 * (40%-160%) Nafion Byproduct 6 (PFESA BP6) 25.8 UX ND X 33.1 ng/g 128 (53%-153%) Nonafluoro-316-dioxaheptanoic 25.8 U ND 32.3 ng/g 125 (43%-163%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 25.8 U ND 33.1 ng/g 128 (48%-148% acid (PFEESA or PES) Page 77 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 22 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Perfluoro(3,5,7,9,11- 25.8 UX ND X 33.9 ng/g 131 (42%-167%) RR3 03/20/2315:29 pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 25.8 UX ND X 30.2 ng/g 117 (49%-162%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 25.8 UX ND X 31.6 ng/g 123 (44%-167%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 25.8 UX ND X 35.1 ng/g 136 (57%-153%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 25.8 U ND 34.4 ng/g 133 (47%-166%) (PFMOBA) Perfluoro-2- 25.8 UX ND X 34.4 ng/g 133 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 25.8 UX ND X 30.0 ng/g 116 (49%-169%) (PFMOAA) Perfluoro-3-methoxypropanoic 25.8 U ND 35.5 ng/g 137 (40%-162%) acid (PFMOPrA) Perfluorobutanesulfonic acid 22.9 U ND 29.0 ng/g 127 (67%-146%) MB2 03/18/23 14:31 (PFBS) Perfluorobutanoic acid (PFBA) 25.8 U ND 32.2 ng/g 125 (56%-156%) Perfluorodecanesulfonic acid 24.9 J 1.18 27.8 ng/g 107 (61%-150%) (PFDS) Perfluorodecanoic acid (PFDA) 25.8 U ND 31.9 ng/g 117 (59%-153% Perfluorododecanesulfonic acid 25.0 U ND 22.4 ng/g 89 (39%-149% (PFDoS) Perfluorododecanoic acid (PFDOA) 25.8 J 1.73 31.6 ng/g 116 (59%-147%) Perfluoroethoxypropionic acid 25.8 UX ND X 28.9 ng/g 112 (49%-151%) RR3 03/20/23 15:29 (EVE) Page 78 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 23 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Perfluoroheptanesulfonic acid 24.5 U ND 29.5 ng/g 120 (50%-156%) MB2 03/18/23 14:31 (PFHpS) Perfluoroheptanoic acid (PFHpA) 25.8 U ND 30.9 ng/g 120 (61%-149%) Perfluorohexanesulfonic acid 23.6 U ND 25.2 ng/g 107 (64%-150%) (PFHxS) Perfluorohexanoic acid (PFHxA) 25.8 U ND 28.0 ng/g 108 (61%-151%) Perfluorononanesulfonic acid 24.8 U ND 27.7 ng/g 112 (47%-147%) (PFNS) Perfluorononanoic acid (PFNA) 25.8 U ND 30.0 ng/g 116 (58%-152%) Perfluorooctanesulfonamide 25.8 7 1.03 33.4 ng/g 126 (68%-153%) (PFOSA) Perfluorooctanesulfonic acid 25.8 9.72 37.8 ng/g 109 (53%-157%) (PFOS) Perfluorooctanoic acid (PFOA) 25.8 U ND 31.2 ng/g 121 (53%-155%) Perfluoropentanesulfonic acid 24.3 U ND 27.0 ng/g 111 (58%-150%) (PFPeS) Perfluoropentanoic acid (PFPeA) 25.8 U ND 28.8 ng/g 111 (66%-150%) Perfluorotetradecanoic acid (PFTA) 25.8 U ND 29.9 ng/g 116 (60%-157%) Perfluorotridecanoic Acid (PFTriA) 25.8 U ND 38.0 ng/g 147 (35%-157%) Perfluoroundecanoic acid (PFUnA) 25.8 7 0.911 31.9 ng/g 120 (58%-154%) R-EVE 25.8 UX ND X 103 ng/g 400* (40%-160%) RR3 03/20/2315:29 Page 79 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 24 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 QC1205349342 613703003 MSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 25.4 UX ND X 31.5 ng/g 2 124 (0%-30%) RR3 03/20/2315:45 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 23.9 U ND 20.9 ng/g 1 88 (0%-30%) MB2 03/18/2314:40 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 25.4 U ND 33.0 ng/g 4 130 (0%-30%) RR3 03/20/2315:45 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 25.4 UX ND X 28.3 ng/g 5 112 (0%-30%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 25.4 J 2.41 26.5 ng/g 38* 95 (0%-30%) MB2 03/18/2314:40 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 25.4 8.10 39.9 ng/g 9 125 (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 25.4 9.55 43.2 ng/g 3 133 (0%-30%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 25.4 24.9 55.7 ng/g 10 122 (0%-30%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 25.4 U ND 28.2 ng/g 17 ill (0%-30%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 25.4 U ND 30.5 ng/g 11 120 (0%-30%) acid (DONA,ADONA) 4- 25.4 UX ND X 26.5 ng/g 3 105 (0%-30%) RR3 03/20/2315:45 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 23.6 U ND 25.2 ng/g 8 107 (0%-30%) MB2 03/18/2314:40 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 23.7 U ND 28.0 ng/g 5 118 (0%-30%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 24.1 U ND 30.5 ng/g 8 127 (0%-30%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 24.3 U ND 32.0 ng/g 54 * 132 (0%-30%) 03/18/23 16:42 FTS) Page 80 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 25 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Hydro -EVE 25.4 UX ND X 33.2 ng/g 6 131 (0%-30%) RR3 03/20/2315:45 N-ethylperfluoro-I- 25.4 U ND 31.4 ng/g 3 124 (0%-30%) MB2 03/18/2314:40 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 25.4 7 4.32 29.0 ng/g 10 97 (0%-30%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 25.4 U ND 29.7 ng/g 17 117 (0%-30%) octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 25.4 6.80 37.1 ng/g 25 119 (0%-30%) octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct 1 (PFESA BPI) 25.4 UX ND X 30.7 ng/g 1 121 (0%-30%) RR3 03/20/23 15:45 Nafon Byproduct 2 (PFESA BP2) 25.4 UX ND X 29.2 ng/g 10 115 (0%-30%) Nafon Byproduct 4 (PFESA BP4) 25.4 UX ND X 145 ng/g 17 570 * (0%-30%) Naflon Byproduct 5 (PFESA BP5) 25.4 UX ND X 91.0 ng/g 6 359 * (0%-30%) Nation Byproduct 6 (PFESA BP6) 25.4 UX ND X 33.0 ng/g 0 130 (0%-30%) Nonafluoro-3,6-dioxaheptanoic 25.4 U ND 32.8 ng/g 2 129 (0%-30%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 25.4 U ND 32.3 ng/g 3 127 (0%-30%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 25.4 UX ND X 33.5 ng/g 1 132 (0%-30%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 25.4 UX ND X 30.3 ng/g 0 119 (0%-30%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 25.4 UX ND X 30.7 ng/g 3 121 (0%-30% acid (PF030A) Page 81 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 26 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Perfluoro(3,5-dioxahexanoic) acid 25.4 UX ND X 33.5 ng/g 5 132 (0%-30%) RR3 03/20/23 15:45 (PF02HxA) Perfluoro(4-methoxybutanoic) acid 25.4 U ND 34.2 ng/g 1 135 (0%-30%) (PFMOBA) Perfluoro-2- 25.4 UX ND X 33.4 ng/g 3 132 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 25.4 UX ND X 29.1 ng/g 3 115 (0%-30%) (PFMOAA) Perfluoro-3-methoxypropanoic 25.4 U ND 35.2 ng/g 1 139 (0%-30%) acid (PFMOPrA) Perfluorobutanesulfonic acid 22.4 U ND 26.3 ng/g 10 117 (0%-30%) MB2 03/18/23 14:40 (PFBS) Perfluorobutanoic acid (PFBA) 25.4 U ND 30.9 ng/g 4 122 (0%-30%) Perfluorodecanesulfonic acid 24.5 J 1.18 29.5 ng/g 6 116 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 25.4 U ND 34.2 ng/g 7 128 (0%-30%) Perfluorododecanesulfonic acid 24.5 U ND 22.7 ng/g 2 93 (0%-30%) (PFDoS) Perfluorododecanoic acid (PFDOA) 25.4 J 1.73 30.9 ng/g 2 115 (0%-30%) Perfluoroethoxypropionic acid 25.4 UX ND x 30.4 ng/g 5 120 (0%-30%) RR3 03/20/23 15:45 (EVE) Perfluoroheptanesulfonic acid 24.1 U ND 31.3 ng/g 6 130 (0%-30%) MB2 03/18/23 14:40 (PFHpS) Perfluoroheptanoic acid (PFHpA) 25.4 U ND 27.6 ng/g 11 109 (0%-30% Perfluorohexanesulfonic acid 23.1 U ND 25.5 ng/g 1 110 (0%-30% (PFHxS) Page 82 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 27 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400381 Perfluorohexanoic acid (PFHxA) 25.4 U ND 29.0 ng/g 4 114 (0%-30%) MB2 03/18/23 14:40 Perfluorononanesulfonic acid 24.3 U ND 30.0 ng/g 8 123 (0%-30%) (PFNS) Perfluorononanoic acid (PFNA) 25.4 U ND 27.5 ng/g 9 108 (0%-30%) Perfluorooctanesulfonamide 25.4 J 1.03 29.6 ng/g 12 113 (0%-30%) (PFOSA) Perfluorooctanesulfonic acid 25.4 9.72 37.4 ng/g 1 109 (0%-30%) (PFOS) Perfluorooctanoic acid (PFOA) 25.4 U ND 29.8 ng/g 4 118 (0%-30%) Perfluoropentanesulfonic acid 23.8 U ND 28.7 ng/g 6 121 (0%-30%) (PFPeS) Perfluoropentanoic acid (PFPeA) 25.4 U ND 27.6 ng/g 4 109 (0%-30%) Perfluorotetradecanoic acid (PFTA) 25.4 U ND 28.7 ng/g 4 113 (0%-30%) Perfluorotridecanoic Acid (PFTriA) 25.4 U ND 36.3 ng/g 4 143 (0%-30%) Perfluoroundecanoic acid (PFUnA) 25.4 J 0.911 33.3 ng/g 4 128 (0%-30%) R-EVE 25.4 UX ND X 106 ng/g 3 418 * (0%-30%) RR3 03/20/23 15:45 Batch 2400729 QC1205350051 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.4 X 17.9 ng/L 92 (60%-158%) RR3 03/20/2318:31 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 18.3 18.1 ng/L 99 (59%-144%) JMB3 03/20/2310:11 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.4 19.0 ng/L 98 (67%-144%) RR3 03/20/2318:31 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic Page 83 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 28 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.4 X 19.0 ng/L 98 (58%-144%) RR3 03/20/2318:31 (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.4 22.0 ng/L 113 (54%-128%) JMB3 03/20/2310:11 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- 19.4 25.5 ng/L 131 (52%-141%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.4 19.7 ng/L 101 (67%-154%) acid (DONA,ADONA) 4- 19.4 X 17.9 ng/L 92 (73%-141%) RR3 03/20/2318:31 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 18.1 21.3 ng/L 118 (68%-135%) JMB3 03/20/2310:11 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.2 15.1 ng/L 83 (56%-151%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.4 20.1 ng/L 109 (60%-153%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 18.6 20.9 ng/L 112 (60%-141%) FTS) Hydro -EVE 19.4 X 21.9 ng/L 113 (61%-148%) RR3 03/20/2318:31 N-ethylperfluoro-l- 19.4 22.8 ng/L 117 (23%-155%) JMB3 03/20/2310:11 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 19.4 19.3 ng/L 99 (57%-139%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- 19.4 26.8 ng/L 138 (20%-154%) octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 19.4 21.9 ng/L 113 (59%-145%) octanesulfonamidoacetic acid (N- McFOSAA) Page 84 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 29 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Nation Byproduct 1 (PFESA BPI) 19.4 X 12.1 ng/L 62 (35%-138%) RR3 03/20/23 18:31 Nation Byproduct 2 (PFESA BP2) 19.4 X 20.1 ng/L 103 (63%-143%) Naflon Byproduct 4 (PFESA BP4) 19.4 X 7.79 ng/L 40 (5%-158%) Naflon Byproduct 5 (PFESA BP5) 19.4 X 11.3 ng/L 58 (5%-149%) Naflon Byproduct 6 (PFESA BP6) 19.4 X 18.8 ng/L 97 (59%-145%) Nonafluoro-316-dioxahepanoic 19.4 20.1 ng/L 104 (48%-149%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.4 18.9 ng/L 97 (52%-148%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 19.4 X 18.2 ng/L 94 (58%-147%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.4 X 16.4 ng/L 85 (60%-151%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.4 X 18.7 ng/L 96 (62%-148%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.4 x 19.3 ng/L 99 (60%-144%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 19.4 19.4 ng/L 100 (58%-142%) (PFMOBA) Perfluoro-2- 19.4 X 19.8 ng/L 102 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.4 X 19.0 ng/L 98 (52%-144%) (PFMOAA) Perfluoro-3-methoxypropanoic 19.4 20.6 ng/L 106 (60%-149% acid (PFMOPrA) Page 85 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 30 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Perfluorobutanesulfonic acid 17.2 17.0 ng/L 99 (70%-144%) JMB3 03/20/23 10:11 (PFBS) Perfluorobutanoic acid (PFBA) 19.4 20.7 ng/L 107 (73%-151%) Perfluorodecanesulfonic acid 18.7 18.7 ng/L 100 (58%-134%) (PFDS) Perfluorodecanoic acid (PFDA) 19.4 20.0 ng/L 103 (65%-145%) Perfluorododecanesulfonic acid 18.8 21.6 ng/L 115 (57%-134%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.4 22.0 ng/L 113 (65%-137%) Perfluoroethoxypropionic acid 19.4 X 14.6 ng/L 75 (20%-160%) RR3 03/20/23 18:31 (EVE) Perfluoroheptanesulfonic acid 18.4 21.0 ng/L 114 (68%-138%) JMB3 03/20/23 10:11 (PFHpS) Perfluoroheptanoic acid (PFHpA) 19.4 21.1 ng/L 109 (71%-133%) Perfluorohexadecanoic acid 19.4 21.3 ng/L 110 (69%-144%) (PFHxDA) Perfluorohexanesulfonic acid 17.7 20.1 ng/L 114 (67%-145%) (PFHxS) Perfluorohexanoic acid (PFHxA) 19.4 22.1 ng/L 114 (70%-138% Perfluorononanesulfonic acid 18.6 20.6 ng/L 110 (64%-133% (PFNS) Perfluorononanoic acid (PFNA) 19.4 20.5 ng/L 106 (69%-133% Perfluorooctadecanoic acid 19.4 15.7 ng/L 81 (35%-165% (PFODA) Page 86 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Workorder: 613703 QC Summary Page 31 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Perfluorooctanesulfonamide 19.4 20.4 ng/L 105 (64%-134%) JMB3 03/20/2310:11 (PFOSA) Perfluorooctanesulfonic acid 19.4 21.9 ng/L 113 (65%-145%) (PFOS) Perfluorooctanoic acid (PFOA) 19.4 21.1 ng/L 109 (66%-139%) Perfluoropentanesulfonic acid 18.3 20.7 ng/L 113 (67%-136%) (PFPeS) Perfluoropentanoic acid (PFPeA) 19.4 21.5 ng/L 111 (72%-143%) Perfluoropropanoic acid (PFPrA) 19.4 BX 23.2 ng/L 119 (49%-153%) RR3 03/20/23 18:31 Perfluorotetradecanoic acid (PFTA) 19.4 21.5 ng/L 111 (66%-138%) JMB3 03/20/23 10:11 Perfluorotridecanoic Acid (PFTriA) 19.4 22.7 ng/L 117 (58%-140%) Perfluoroundecanoic acid (PFUnA) 19.4 19.4 ng/L 100 (63%-135%) R-EVE 19.4 X 8.32 ng/L 43 (5%-158%) RR3 03/20/2318:31 QC1205350052 LCSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.8 X 20.2 ng/L 12 102 (0%-30%) 03/20/2318:46 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 18.7 16.8 ng/L 8 90 (0%-27%) JMB3 03/20/2310:20 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.8 20.7 ng/L 9 105 (0%-30%) RR3 03/20/2318:46 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.8 X 21.3 ng/L 11 108 (0%-27%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.8 24.4 ng/L 10 123 (0%-28%) JMB3 03/20/2310:20 octanesulfonamido)-ethanol (N- EtFOSE) Page 87 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 32 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 2-(N-methylperfluoro-l- 19.8 24.0 ng/L 6 121 (0%-30%) JMB3 03/20/2310:20 octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.8 25.5 ng/L 26 129 (0%-26%) acid (DONA,ADONA) 4- 19.8 x 21.0 ng/L 16 106 (0%-24%) RR3 03/20/2318:46 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 18.5 19.9 ng/L 7 108 (0%-26%) JMB3 03/20/2310:20 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.5 17.4 ng/L 14 94 (0%-32%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.8 21.6 ng/L 7 115 (0%-32%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 19.0 21.8 ng/L 4 115 (0%-36%) FTS) Hydro -EVE 19.8 x 24.6 ng/L 12 124 (0%-24%) RR3 03/20/2318:46 N-ethylperfluoro-l- 19.8 27.2 ng/L 18 137 (0%-27%) JMB3 03/20/2310:20 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 19.8 23.4 ng/L 19 118 (0%-27%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- 19.8 27.9 ng/L 4 141 (0%-36%) octanesulfonamide (N-McFOSA) N-methylperfluoro-l- 19.8 22.8 ng/L 4 115 (0%-27%) octanesulfonamidoacetic acid (N- McFOSAA) Nation Byproduct 1 (PFESA BPI) 19.8 x 14.3 ng/L 16 72 (0%-28%) RR3 03/20/23 18:46 Nation Byproduct 2 (PFESA BP2) 19.8 x 21.8 ng/L 8 110 (0%-23%) Naflon Byproduct 4 (PFESA BP4) 19.8 x 3.78 ng/L 69 * 19 (0%-45%) Page 88 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 33 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Nation Byproduct 5 (PFESA BP5) 19.8 X 5.03 ng/L 76* 25 (0%-40%) RR3 03/20/23 18:46 Nation Byproduct 6 (PFESA BP6) 19.8 X 20.3 ng/L 7 102 (0%-26%) Nonafluoro-316-dioxaheptanoic 19.8 21.6 ng/L 7 109 (0%-27%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.8 21.7 ng/L 14 109 (0%-35%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - 19.8 X 22.2 ng/L 20 112 (0%-40%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.8 X 22.0 ng/L 29 ill (0%-39%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.8 X 21.0 ng/L 12 106 (0%-36%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.8 X 21.8 ng/L 12 110 (0%-27%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 19.8 21.6 ng/L 11 109 (0%-29%) (PFMOBA) Perfluoro-2- 19.8 X 22.5 ng/L 13 114 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.8 x 21.4 ng/L 12 108 (0%-31%) (PFMOAA) Perfluoro-3-methoxypropanoic 19.8 22.7 ng/L 10 114 (0%-25%) acid (PFMOPrA) Perfluorobutanesulfonic acid 17.5 19.4 ng/L 13 110 (0%-35%) JMB3 03/20/23 10:20 (PFBS) Perfluorobutanoic acid (PFBA) 19.8 21.7 ng/L 5 110 (0%-20% Perfluorodecanesulfonic acid 19.1 19.0 ng/L 2 100 (0%-30% (PFDS) Page 89 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 34 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Perfluorodecanoic acid (PFDA) 19.8 22.1 ng/L 10 112 (0%-31%) JMB3 03/20/23 10:20 Perfluorododecanesulfonic acid 19.2 20.2 ng/L 7 105 (0%-32%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.8 22.2 ng/L 1 112 (0%-26%) Perfluoroethoxypropionic acid 19.8 X 16.1 ng/L 10 81 (0%-30%) RR3 03/20/23 18:46 (EVE) Perfluoroheptanesulfonic acid 18.8 21.5 ng/L 2 114 (0%-40%) JMB3 03/20/23 10:20 (PFHpS) Perfluoroheptanoic acid (PFHpA) 19.8 25.0 ng/L 17 126 (0%-23%) Perfluorohexadecanoic acid 19.8 23.8 ng/L 11 120 (0%-26%) (PFHxDA) Perfluorohexanesulfonic acid 18.1 22.4 ng/L 11 124 (0%-27%) (PFHxS) Perfluorohexanoic acid (PFHxA) 19.8 23.2 ng/L 5 117 (0%-27%) Perfluorononanesulfonic acid 19.0 20.9 ng/L 2 110 (0%-27%) (PFNS) Perfluorononanoic acid (PFNA) 19.8 20.2 ng/L 1 102 (0%-25%) Perfluorooctadecanoic acid 19.8 13.9 ng/L 12 70 (0%-39%) (PFODA) Perfluorooctanesulfonamide 19.8 23.5 ng/L 14 118 (0%-26%) (PFOSA) Perfluorooctanesulfonic acid 19.8 22.3 ng/L 2 113 (0%-25%) (PFOS) Perfluorooctanoic acid (PFDA) 19.8 23.9 ng/L 12 121 (0%-27% Page 90 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 35 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Perfluoropentanesulfonic acid 18.6 22.6 ng/L 9 121 (0%-40%) JMB3 03/20/23 10:20 (PFPeS) Perfluoropentanoic acid (PFPeA) 19.8 22.6 ng/L 5 114 (0%-25%) Perfluoropropanoic acid (PFPrA) 19.8 BX 25.9 ng/L 11 131 (0%-26%) RR3 03/20/23 18:46 Perfluorotetradecanoic acid (PFTA) 19.8 23.2 ng/L 8 117 (0%-26%) JMB3 03/20/23 10:20 Perfluorotridecanoic Acid (PFTriA) 19.8 23.4 ng/L 3 118 (0%-31%) Perfluoroundecanoic acid (PFUnA) 19.8 22.9 ng/L 16 115 (0%-30%) R-EVE 19.8 X 5.16 ng/L 47 * 26 (0%-26%) RR3 03/20/23 18:46 QC1205350050 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND ng/L 03/20/2318:16 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/L JMB3 03/20/2310:02 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/L RR3 03/20/2318:16 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- U% ND ng/L (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- U ND ng/L JMB3 03/20/2310:02 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- U ND ng/L octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic U ND ng/L acid (DONA,ADONA) 4- UX ND ng/L RR3 03/20/2318:16 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) Page 91 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 36 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 9-Chlorohexadecafluoro-3- U ND ng/L JMB3 03/20/2310:02 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND ng/L FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND ng/L FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND ng/L FTS) Hydro -EVE Ux ND ng/L RR3 03/20/2318:16 N-ethylperfluoro-1- U ND ng/L JMB3 03/20/2310:02 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-I- U ND ng/L octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- U ND ng/L octanesulfonamide (N-McFOSA) N-methylperfluoro-I- U ND ng/L octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct I (PFESA BPI) Ux ND ng/L RR3 03/20/23 18:16 Nafion Byproduct 2 (PFESA BP2) Ux ND ng/L Nafion Byproduct 4 (PFESA BP4) Ux ND ng/L Nafion Byproduct 5 (PFESA BP5) Ux ND ng/L Nation Byproduct 6 (PFESA BP6) Ux ND ng/L Nonafluoro-316-dioxaheptanoic U ND ng/L acid (NFDHA or PFECA B) Page 92 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 37 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Perfluoro(2-ethoxyethane)sulfonic U ND ng/L RR3 03/20/2318:16 acid (PFEESA or PES) Perfluoro(3,5,7,9,11- Ux ND ng/L pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND ng/L acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) UX ND ng/L acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND ng/L (PF02HxA) Perfluoro(4-methoxybutanoic) acid U ND ng/L (PFMOBA) Perfluoro-2- UX ND ng/L (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid UX ND ng/L (PFMOAA) Perfluoro-3-methoxypropanoic U ND ng/L acid (PFMOPrA) Perfluorobutanesulfonic acid U ND ng/L JMB3 03/20/23 10:02 (PFBS) Perfluorobutanoic acid (PFBA) U ND ng/L Perfluorodecanesulfonic acid U ND ng/L (PFDS) Perfluorodecanoic acid (PFDA) U ND ng/L Perfluorododecanesulfonic acid U ND ng/L (PFDoS) Perfluorododecanoic acid (PFDOA) U ND ng/L Page 93 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 38 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Perfluoroethoxypropionic acid UX ND ng/L RR3 03/20/23 18:16 (EVE) Perfluoroheptanesulfonic acid U ND ng/L JMB3 03/20/23 10:02 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND ng/L Perfluorohexadecanoic acid U ND ng/L (PFHxDA) Perfluorohexanesulfonic acid U ND ng/L (PFHxS) Perfluorohexanoic acid (PFHxA) U ND ng/L Perfluorononanesulfonic acid U ND ng/L (PFNS) Perfluorononanoic acid (PFNA) U ND ng/L Perfluorooctadecanoic acid U ND ng/L (PFODA) Perfluorooctanesulfonamide U ND ng/L (PFOSA) Perfluorooctanesulfonic acid U ND ng/L (PFOS) Perfluorooctanoic acid (PFOA) U ND ng/L Perfluoropentanesulfonic acid U ND ng/L (PFPeS) Perfluoropentanoic acid (PFPeA) U ND ng/L Perfluoropropanoic acid (PFPrA) X 4.14 ng/L RR3 03/20/23 18:16 Page 94 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 39 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2400729 Perfluorotetradecanoic acid (PFTA) U ND ng/L JMB3 03/20/23 10:02 Perfluorotridecanoic Acid (PFTriA) U ND ng/L Perfluoroundecanoic acid (PFUnA) U ND ng/L R-EVE UX ND ng/L RR3 03/20/2318:16 Batch 2401145 QC1205350874 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.2 X 19.5 ng/L 102 (60%-158%) RR3 03/21/2312:41 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 18.1 19.2 ng/L 106 (59%-144%) JMB3 03/21/23 09:48 oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.2 19.9 ng/L 104 (67%-144%) RR3 03/21/2312:41 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.2 X 21.4 ng/L 112 (58%-144%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.2 24.2 ng/L 126 (54%-128%) JMB3 03/21/23 09:48 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- 19.2 24.4 ng/L 127 (52%-141%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.2 20.0 ng/L 104 (67%-154%) acid (DONA,ADONA) 4- 19.2 X 19.0 ng/L 99 (73%-141%) RR3 03/21/2312:41 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 17.9 20.3 ng/L 114 (68%-135%) JMB3 03/21/23 09:48 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.0 23.6 ng/L 131 (56%-151%) FTS) Page 95 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 40 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 Fluorotelomer sulfonic acid 6:2 (6:2 18.2 B 20.0 ng/L 110 (60%-153%) JMB3 03/21/23 09:48 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 18.4 20.8 ng/L 113 (60%-141%) FTS) Hydro -EVE 19.2 X 24.0 ng/L 125 (61%-148%) RR3 03/21/2312:41 N-ethylperfluoro-l- 19.2 28.6 ng/L 149 (23%-155%) JMB3 03/21/23 09:48 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-I- 19.2 23.6 ng/L 123 (57%-139%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 19.2 32.0 ng/L 167* (20%-154%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 19.2 22.9 ng/L 119 (59%-145%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 19.2 X 13.7 ng/L 71 (35%-138%) RR3 03/21/23 12:41 Nafion Byproduct 2 (PFESA BP2) 19.2 X 20.6 ng/L 107 (63%-143%) Nation Byproduct 4 (PFESA BP4) 19.2 X 20.5 ng/L 107 (5%-158%) Nafion Byproduct 5 (PFESA BP5) 19.2 X 26.4 ng/L 138 (5%-149%) Nafion Byproduct 6 (PFESA BP6) 19.2 X 23.4 ng/L 122 (59%-145%) Nonafluoro-316-dioxaheptanoic 19.2 23.5 ng/L 123 (48%-149%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.2 22.7 ng/L 118 (52%-148%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - 19.2 X 21.1 ng/L 110 (58%-147% pentaoxadodecanoic) acid (PF05DA or TAFN4) Page 96 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 41 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 Perfluoro(3,5,7,9-tetraoxadecanoic) 19.2 x 21.5 ng/L 112 (60%-151%) RR3 03/21/2312:41 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.2 x 19.7 ng/L 102 (62%-148%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.2 X 21.0 ng/L 109 (60%-144%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 19.2 22.0 ng/L 114 (58%-142%) (PFMOBA) Perfluoro-2- 19.2 X 21.5 ng/L 112 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.2 X 21.2 ng/L 110 (52%-144%) (PFMOAA) Perfluoro-3-methoxypropanoic 19.2 21.3 ng/L 111 (60%-149%) acid (PFMOPrA) Perfluorobutanesulfonic acid 17.0 18.3 ng/L 108 (70%-144%) JMB3 03/21/23 09:48 (PFBS) Perfluorobutanoic acid (PFBA) 19.2 21.5 ng/L 112 (73%-151%) Perfluorodecanesulfonic acid 18.5 20.4 ng/L 110 (58%-134%) (PFDS) Perfluorodecanoic acid (PFDA) 19.2 21.7 ng/L 113 (65%-145%) Perfluorododecanesulfonic acid 18.6 22.8 ng/L 123 (57%-134%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.2 22.8 ng/L 119 (65%-137%) Perfluoroethoxypropionic acid 19.2 x 17.4 ng/L 91 (20%-160%) RR3 03/21/23 12:41 (EVE) Perfluoroheptanesulfonic acid 18.2 22.5 ng/L 123 (68%-138%) JMB3 03/21/23 09:48 (PFHpS) Page 97 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 42 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 Perfluoroheptanoic acid (PFHpA) 19.2 23.2 ng/L 121 (71%-133%) JMB3 03/21/23 09:48 Perfluorohexadecanoic acid 19.2 22.1 ng/L 115 (69%-144%) (PFHxDA) Perfluorohexanesulfonic acid 17.5 20.4 ng/L 117 (67%-145%) (PFHxS) Perfluorohexanoic acid (PFHxA) 19.2 22.0 ng/L 115 (70%-138%) Perfluorononanesulfonic acid 18.4 21.5 ng/L 117 (64%-133%) (PFNS) Perfluorononanoic acid (PFNA) 19.2 20.2 ng/L 105 (69%-133%) Perfluorooctadecanoic acid 19.2 16.1 ng/L 84 (35%-165%) (PFODA) Perfluorooctanesulfonamide 19.2 21.2 ng/L 110 (64%-134%) (PFOSA) Perfluorooctanesulfonic acid 19.2 23.0 ng/L 120 (65%-145%) (PFOS) Perfluorooctanoic acid (PFOA) 19.2 21.2 ng/L 110 (66%-139%) Perfluoropentanesulfonic acid 18.1 22.3 ng/L 123 (67%-136% (PFPeS) Perfluoropentanoic acid (PFPeA) 19.2 23.1 ng/L 120 (72%-143%) Perfluoropropanoic acid (PFPrA) 19.2 BX 25.7 ng/L 134 (49%-153%) RR3 03/21/23 12:41 Perfluorotetradecanoic acid (PFTA) 19.2 23.0 ng/L 120 (66%-138%) JMB3 03/21/23 09:48 Perfluorotridecanoic Acid (PFTriA) 19.2 21.8 ng/L 113 (58%-140%) Page 98 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 43 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 Perfluoroundecanoic acid (PFUnA) 19.2 21.9 ng/L 114 (63%-135%) JMB3 03/21/23 09:48 R-EVE 19.2 x 20.2 ng/L 105 (5%-158%) RR3 03/21/2312:41 QC1205350875 LCSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.4 x 22.2 ng/L 13 115 (0%-30%) 03/21/2312:56 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 18.3 19.7 ng/L 3 108 (0%-27%) JMB3 03/21/23 09:57 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.4 21.2 ng/L 6 109 (0%-30%) RR3 03/21/2312:56 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.4 x 23.3 ng/L 8 120 (0%-27%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.4 26.9 ng/L 10 139* (0%-28%) JMB3 03/21/23 09:57 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 19.4 27.1 ng/L 10 140 (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.4 21.7 ng/L 8 112 (0%-26%) acid (DONA,ADONA) 4- 19.4 x 20.0 ng/L 5 103 (0%-24%) RR3 03/21/2312:56 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 18.1 21.2 ng/L 4 117 (0%-26%) JMB3 03/21/23 09:57 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.1 22.0 ng/L 7 122 (0%-32%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.4 B 24.5 ng/L 20 133 (0%-32%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 18.6 22.1 ng/L 6 119 (0%-36%) FTS) Hydro -EVE 19.4 x 23.6 ng/L 2 122 (0%-24%) RR3 03/21/2312:56 Page 99 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 44 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 N-ethylperfluoro-l- 19.4 30.0 ng/L 5 154 (0%-27%) JMB3 03/21/23 09:57 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 19.4 23.2 ng/L 2 119 (0%-27%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 19.4 31.0 ng/L 3 160* (0%-36%) octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 19.4 23.9 ng/L 4 123 (0%-27%) octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct 1 (PFESA BPI) 19.4 X 13.4 ng/L 3 69 (0%-28%) RR3 03/21/23 12:56 Nation Byproduct 2 (PFESA BP2) 19.4 X 22.6 ng/L 9 116 (0%-23%) Nation Byproduct 4 (PFESA BP4) 19.4 X 17.4 ng/L 16 90 (0%-45%) Nation Byproduct 5 (PFESA BP5) 19.4 X 23.0 ng/L 14 119 (0%-40%) Nafion Byproduct 6 (PFESA BP6) 19.4 X 20.3 ng/L 14 104 (0%-26%) Nonafluoro-3,6-dioxahepanoic 19.4 23.6 ng/L 0 122 (0%-27%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.4 22.2 ng/L 2 115 (0%-35%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 19.4 x 23.6 ng/L 11 122 (0%-40%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.4 x 21.7 ng/L 1 112 (0%-39%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.4 x 21.2 ng/L 8 109 (0%-36%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.4 X 21.9 ng/L 4 113 (0%-27% (PF02HxA) Page 100 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 45 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 Perfluoro(4-methoxybutanoic) acid 19.4 23.2 ng/L 5 119 (0%-29%) RR3 03/21/23 12:56 (PFMOBA) Perfluoro-2- 19.4 x 22.5 ng/L 4 116 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.4 X 23.0 ng/L 8 119 (0%-31%) (PFMOAA) Perfluoro-3-methoxypropanoic 19.4 23.6 ng/L 10 121 (0%-25%) acid (PFMOPrA) Perfluorobutanesulfonic acid 17.2 21.6 ng/L 16 126 (0%-35%) JMB3 03/21/23 09:57 (PFBS) Perfluorobutanoic acid (PFBA) 19.4 23.4 ng/L 8 121 (0%-20%) Perfluorodecanesulfonic acid 18.7 19.7 ng/L 3 105 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 19.4 22.4 ng/L 3 115 (0%-31%) Perfluorododecanesulfonic acid 18.8 21.4 ng/L 6 114 (0%-32%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.4 22.6 ng/L 1 116 (0%-26%) Perfluoroethoxypropionic acid 19.4 x 17.7 ng/L 1 91 (0%-30%) RR3 03/21/23 12:56 (EVE) Perfluoroheptanesulfonic acid 18.4 22.1 ng/L 2 120 (0%-40%) JMB3 03/21/23 09:57 (PFHpS) Perfluoroheptanoic acid (PFHpA) 19.4 26.2 ng/L 12 135 * (0%-23%) Perfluorohexadecanoic acid 19.4 23.1 ng/L 4 119 (0%-26%) (PFHxDA) Perfluorohexanesulfonic acid 17.7 24.7 ng/L 19 139 (0%-27% (PFHxS) Page 101 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 46 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 Perfluorohexanoic acid (PFHxA) 19.4 24.0 ng/L 8 124 (0%-27%) JMB3 03/21/23 09:57 Perfluorononanesulfonic acid 18.6 21.3 ng/L 1 115 (0%-27%) (PFNS) Perfluorononanoic acid (PFNA) 19.4 23.9 ng/L 17 123 (0%-25%) Perfluorooctadecanoic acid 19.4 15.6 ng/L 3 80 (0%-39%) (PFODA) Perfluorooctanesulfonamide 19.4 24.0 ng/L 12 124 (0%-26%) (PFOSA) Perfluorooctanesulfonic acid 19.4 23.4 ng/L 2 121 (0%-25%) (PFOS) Perfluorooctanoic acid (PFOA) 19.4 22.5 ng/L 6 116 (0%-27%) Perfluoropentanesulfonic acid 18.2 25.0 ng/L 11 137 * (0%-40%) (PFPeS) Perfluoropentanoic acid (PFPeA) 19.4 23.2 ng/L 0 119 (0%-25%) Perfluoropropanoic acid (PFPrA) 19.4 BX 27.7 ng/L 7 143 (0%-26%) RR3 03/21/23 12:56 Perfluorotetradecanoic acid (PFTA) 19.4 23.3 ng/L 1 120 (0%-26%) JMB3 03/21/23 09:57 Perfluorotridecanoic Acid (PFTriA) 19.4 22.0 ng/L 1 113 (0%-31%) Perfluoroundecanoic acid (PFUnA) 19.4 23.8 ng/L 8 123 (0%-30%) R-EVE 19.4 X 22.3 ng/L 10 115 (0%-26%) RR3 03/21/2312:56 QC1205350873 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND ng/L 03/21/2312:26 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) Page 102 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 47 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 11-Chloroeicosafluoro-3- U ND ng/L JMB3 03/21/23 09:39 oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/L RR3 03/21/2312:26 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- Ux ND ng/L (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- U ND ng/L JMB3 03/21/23 09:39 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- U ND ng/L octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic U ND ng/L acid (DONA,ADONA) 4- Ux ND ng/L RR3 03/21/2312:26 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- U ND ng/L JMB3 03/21/23 09:39 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND ng/L FTS) Fluorotelomer sulfonic acid 6:2 (6:2 J 1.75 ng/L FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND ng/L FTS) Hydro -EVE Ux ND ng/L RR3 03/21/2312:26 N-ethylperfluoro-l- U ND ng/L JMB3 03/21/23 09:39 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND ng/L octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- U ND ng/L octanesulfonamide (N-McFOSA) Page 103 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 48 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 N-methylperfluoro-I- U ND ng/L JMB3 03/21/23 09:39 octanesulfonamidoacetic acid (N- McFOSAA) Nation Byproduct 1 (PFESA BPI) Ux ND ng/L RR3 03/21/23 12:26 Nafion Byproduct 2 (PFESA BP2) Ux ND ng/L Nafion Byproduct 4 (PFESA BP4) Ux ND ng/L Naflon Byproduct 5 (PFESA BP5) Ux ND ng/L Nafion Byproduct 6 (PFESA BP6) Ux ND ng/L Nonafluoro-3,6-dioxahepanoic U ND ng/L acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND ng/L acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - Ux ND ng/L pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) Ux ND ng/L acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) Ux ND ng/L acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid Ux ND ng/L (PF02HxA) Perfluoro(4-methoxybutanoic) acid U ND ng/L (PFMOBA) Perfluoro-2- Ux ND ng/L (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid Ux ND ng/L (PFMOAA) Page 104 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 49 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 Perfluoro-3-methoxypropanoic U ND ng/L RR3 03/21/2312:26 acid (PFMOPrA) Perfluorobutanesulfonic acid U ND ng/L JMB3 03/21/23 09:39 (PFBS) Perfluorobutanoic acid (PFBA) U ND ng/L Perfluorodecanesulfonic acid U ND ng/L (PFDS) Perfluorodecanoic acid (PFDA) U ND ng/L Perfluorododecanesulfonic acid U ND ng/L (PFDoS) Perfluorododecanoic acid (PFDOA) U ND ng/L Perfluoroethoxypropionic acid UX ND ng/L RR3 03/21/23 12:26 (EVE) Perfluoroheptanesulfonic acid U ND ng/L JMB3 03/21/23 09:39 (PFHpS) Perfluorohcptanoic acid (PFHpA) U ND ng/L Perfluorohexadecanoic acid U ND ng/L (PFHxDA) Perfluorohexanesulfonic acid U ND ng/L (PFHxS) Perfluorohexanoic acid (PFHxA) U ND ng/L Perfluorononanesulfonic acid U ND ng/L (PFNS) Perfluorononanoic acid (PFNA) U ND ng/L Page 105 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 50 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401145 Perfluorooctadecanoic acid U ND ng/L JMB3 03/21/23 09:39 (PFODA) Perfluorooctanesulfonamide U ND ng/L (PFOSA) Perfluorooctanesulfonic acid U ND ng/L (PFOS) Perfluorooctanoic acid (PFOA) U ND ng/L Perfluoropentanesulfonic acid U ND ng/L (PFPeS) Perfluoropentanoic acid (PFPeA) U ND ng/L Perfluoropropanoic acid (PFPrA) X 4.71 ng/L RR3 03/21/23 12:26 Perfluorotetradecanoic acid (PFTA) U ND ng/L JMB3 03/21/23 09:39 Perfluorotridecanoic Acid (PFTriA) U ND ng/L Perfluoroundccanoic acid (PFUnA) U ND ng/L R-EVE UX ND ng/L RR3 03/21/2312:26 Batch 2401164 QC1205350936 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 4.65 X 5.66 ng/g 122 (50%-150%) RR3 03/22/2319:34 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 4.38 5.14 ng/g 117 (69%-143%) MB2 03/21/2316:19 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 4.65 5.25 ng/g 113 (72%-137%) RR3 03/22/2319:34 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) Page 106 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 51 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 2,3,3,3-Tetrafluoro-2- 4.65 x 5.32 ng/g 114 (59%-145%) RR3 03/22/2319:34 (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 4.65 4.82 ng/g 104 (61%-131%) MB2 03/21/2316:19 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- 4.65 5.11 ng/g 110 (66%-140%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 4.65 4.96 ng/g 107 (49%-150%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 4.65 4.64 ng/g 100 (54%-145%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 4.65 4.72 ng/g 101 (59%-131%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 4.65 5.27 ng/g 113 (70%-135%) acid (DONA,ADONA) 4- 4.65 X 5.33 ng/g 115 (60%-141%) RR3 03/22/2319:34 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 4.33 5.20 ng/g 120 (66%-140%) MB2 03/21/23 16:19 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 4.35 4.29 ng/g 99 (63%-144%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 4.42 4.06 ng/g 92 (62%-148%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 4.47 4.12 ng/g 92 (65%-144%) FTS) Hydro -EVE 4.65 X 5.57 ng/g 120 (50%-150%) RR3 03/22/2319:34 N-ethylperfluoro-l- 4.65 4.37 ng/g 94 (73%-140%) MB2 03/21/2316:19 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 4.65 4.51 ng/g 97 (66%-141%) octanesulfonamidoacetic acid (N- EtFOSAA) Page 107 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 52 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 N-methylperfluoro-I- 4.65 4.98 ng/g 107 (70%-136%) MB2 03/21/2316:19 octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 4.65 5.07 ng/g 109 (68%-141%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 4.65 X 5.18 ng/g 111 (63%-138%) RR3 03/22/23 19:34 Nafion Byproduct 2 (PFESA BP2) 4.65 X 5.40 ng/g 116 (64%-142%) Nafion Byproduct 4 (PFESA BP4) 4.65 X 5.09 ng/g 109 (50%-150%) Nafion Byproduct 5 (PFESA BP5) 4.65 X 5.03 ng/g 108 (50%-150%) Nafion Byproduct 6 (PFESA BP6) 4.65 X 4.81 ng/g 103 (50%-150%) Nonafluoro-3,6-dioxahepanoic 4.65 5.14 ng/g 110 (50%-150%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 4.65 5.46 ng/g 117 (50%-150%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 4.65 X 5.67 ng/g 122 (58%-151%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 4.65 x 5.25 ng/g 113 (59%-158%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 4.65 x 5.28 ng/g 114 (58%-156%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 4.65 x 5.32 ng/g 114 (67%-142%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 4.65 5.43 ng/g 117 (64%-142%) (PFMOBA) Perfluoro-2- 4.65 X 5.37 ng/g 115 (50%-150% (perfluoromethoxy)propanoic acid (PMPA) Page 108 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 53 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Perfluoro-2-methoxyacetic acid 4.65 x 5.40 ng/g 116 (64%-146%) RR3 03/22/23 19:34 (PFMOAA) Perfluoro-3-methoxypropanoic 4.65 5.14 ng/g 110 (60%-159%) acid (PFMOPrA) Perfluorobutanesulfonic acid 4.12 4.74 ng/g 115 (71%-136%) MB2 03/21/23 16:19 (PFBS) Perfluorobutanoic acid (PFBA) 4.65 5.35 ng/g 115 (66%-141%) Perfluorodecanesulfonic acid 4.49 5.21 ng/g 116 (70%-139%) (PFDS) Perfluorodecanoic acid (PFDA) 4.65 4.92 ng/g 106 (66%-139%) Perfluorododecanesulfonic acid 4.50 5.33 ng/g 118 (54%-148%) (PFDoS) Perfluorododecanoic acid (PFDOA) 4.65 5.70 ng/g 123 (70%-139%) Perfluoroethoxypropionic acid 4.65 X 4.99 ng/g 107 (50%-150%) RR3 03/22/23 19:34 (EVE) Perfluoroheptanesulfonic acid 4.42 5.13 ng/g 116 (72%-138%) MB2 03/21/23 16:19 (PFHpS) Perfluoroheptanoic acid (PFHpA) 4.65 5.44 ng/g 117 (72%-132%) Perfluorohexanesulfonic acid 4.24 4.16 ng/g 98 (68%-139%) (PFHxS) Perfluorohexanoic acid (PFHxA) 4.65 5.09 ng/g 109 (70%-135% Perfluorononanesulfonic acid 4.47 4.58 ng/g 103 (60%-138% (PFNS) Perfluorononanoic acid (PFNA) 4.65 5.03 ng/g 108 (70%-136% Page 109 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 54 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Perfluorooctanesulfonamide 4.65 5.33 ng/g 115 (76%-138%) MB2 03/21/2316:19 (PFOSA) Perfluorooctanesulfonic acid 4.65 5.35 ng/g 115 (73%-135%) (PFOS) Perfluorooctanoic acid (PFOA) 4.65 5.14 ng/g 110 (72%-135%) Perfluoropentanesulfonic acid 4.37 4.42 ng/g 101 (66%-138%) (PFPeS) Perfluoropentanoic acid (PFPeA) 4.65 5.21 ng/g 112 (72%-155%) Perfluorotetradecanoic acid (PFTA) 4.65 5.32 ng/g 114 (72%-139%) Perfluorotridecanoic Acid (PFTriA) 4.65 4.90 ng/g 105 (60%-149%) Perfluoroundecanoic acid (PFUnA) 4.65 5.04 ng/g 108 (70%-135%) R-EVE 4.65 X 5.26 ng/g 113 (50%-150%) RR3 03/22/2319:34 QC1205350935 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND ng/g 03/22/2319:19 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/g MB2 03/21/2316:10 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/g RR3 03/22/2319:19 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- UX ND ng/g (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- U ND ng/g MB2 03/21/2316:10 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- U ND ng/g octanesulfonamido)-ethanol (N- McFOSE) Page 110 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 55 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 2H,2H,3H,3H-Perfluorodecanoic U ND ng/g MB2 03/21/2316:10 acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic U ND ng/g acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic U ND ng/g acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic U ND ng/g acid (DONA,ADONA) 4- Ux ND ng/g RR3 03/22/2319:19 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- U ND ng/g M132 03/21/23 16:10 oxanonane-l-sulfonic acid (F-5313 Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND ng/g FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND ng/g FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND ng/g FTS) Hydro -EVE Ux ND ng/g RR3 03/22/2319:19 N-ethylperfluoro-l- U ND ng/g M132 03/21/2316:10 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND ng/g octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- U ND ng/g octanesulfonamide (N-McFOSA) N-methylperfluoro-I- U ND ng/g octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct I (PFESA BPI) Ux ND ng/g RR3 03/22/23 19:19 Page 111 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 56 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Nation Byproduct 2 (PFESA BP2) Ux ND ng/g RR3 03/22/23 19:19 Nation Byproduct 4 (PFESA BP4) Ux ND ng/g Nation Byproduct 5 (PFESA BP5) Ux ND ng/g Naflon Byproduct 6 (PFESA BP6) Ux ND ng/g Nonafluoro-316-dioxahepanoic U ND ng/g acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND ng/g acid (PFEESA or PES) Perfluoro(3,5,7,9,11- Ux ND ng/g pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) Ux ND ng/g acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) Ux ND ng/g acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid Ux ND ng/g (PF02HxA) Perfluoro(4-methoxybutanoic) acid U ND ng/g (PFMOBA) Perfluoro-2- Ux ND ng/g (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid Ux ND ng/g (PFMOAA) Perfluoro-3-methoxypropanoic U ND ng/g acid (PFMOPrA) Perfluorobutanesulfonic acid U ND ng/g MB2 03/21/23 16:10 (PFBS) Page 112 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 57 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Perfluorobutanoic acid (PFBA) U ND ng/g MB2 03/21/23 16:10 Perfluorodecanesulfonic acid U ND ng/g (PFDS) Perfluorodecanoic acid (PFDA) U ND ng/g Perfluorododecanesulfonic acid U ND ng/g (PFDoS) Perfluorododecanoic acid (PFDOA) U ND ng/g Perfluoroethoxypropionic acid XU ND ng/g RR3 03/22/23 19:19 (EVE) Perfluoroheptanesulfonic acid U ND ng/g MB2 03/21/23 16:10 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND ng/g Perfluorohexanesulfonic acid U ND ng/g (PFHxS) Perfluorohexanoic acid (PFHxA) U ND ng/g Perfluorononanesulfonic acid U ND ng/g (PFNS) Perfluorononanoic acid (PFNA) U ND ng/g Perfluorooctanesulfonamide U ND ng/g (PFOSA) Perfluorooctanesulfonic acid U ND ng/g (PFOS) Perfluorooctanoic acid (PFDA) U ND ng/g Page 113 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 58 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Perfluoropentanesulfonic acid U ND ng/g MB2 03/21/23 16:10 (PFPeS) Perfluoropentanoic acid (PFPeA) U ND ng/g Perfluorotetradecanoic acid (PFTA) U ND ng/g Perfluorotridecanoic Acid (PFTriA) U ND ng/g Perfluoroundecanoic acid (PFUnA) U ND ng/g R-EVE UX ND ng/g RR3 03/22/2319:19 QC1205350937 613703004 MS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 5.76 XU ND X 6.27 ng/g 109 (42%-158%) 03/22/23 20:20 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 5.43 U ND 6.42 ng/g 118 (43%-141%) M132 03/21/2317:19 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 5.76 U ND 6.23 ng/g 108 (61%-150%) RR3 03/22/23 20:20 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 5.76 UX ND X 6.39 ng/g 111 (43%-154%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 5.76 U ND 5.58 ng/g 97 (49%-153%) MB2 03/21/2317:19 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 5.76 U ND 6.93 ng/g 120 (54%-154%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 5.76 U ND 6.35 ng/g 110 (30%-157%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 5.76 U ND 6.20 ng/g 108 (31%-158%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 5.76 U ND 6.06 ng/g 105 (32%-153%) acid (3:3 FTCA)(FPrPA) Page 114 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 59 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 4,8-Dioxa-3H-perfluorononanoic 5.76 U ND 7.55 ng/g 131 (63%-143%) MB2 03/21/2317:19 acid (DONA,ADONA) 4- 5.76 UX ND X 6.05 ng/g 105 (54%-161%) RR3 03/22/23 20:20 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 5.37 U ND 6.91 ng/g 129 (62%-146%) MB2 03/21/2317:19 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 5.39 U ND 6.08 ng/g 113 (62%-148%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 5.48 U ND 6.53 ng/g 114 (50%-153%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 5.53 U ND 5.74 ng/g 104 (53%-158%) FTS) Hydro -EVE 5.76 UX ND X 6.91 ng/g 120 (51%-148%) RR3 03/22/23 20:20 N-ethylperfluoro-I- 5.76 U ND 6.33 ng/g 110 (48%-148%) MB2 03/21/2317:19 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 5.76 U ND 6.49 ng/g 108 (65%-152%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 5.76 U ND 7.00 ng/g 121 (55%-151%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 5.76 J 0.367 6.97 ng/g 115 (59%-152%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 5.76 UX ND X 6.55 ng/g 114 (60%-147%) RR3 03/22/23 20:20 Nafion Byproduct 2 (PFESA BP2) 5.76 UX ND X 6.27 ng/g 109 (65%-150%) Nafion Byproduct 4 (PFESA BP4) 5.76 UX ND X 13.9 ng/g 241 * (40%-160%) Nafion Byproduct 5 (PFESA BP5) 5.76 UX ND X 12.9 ng/g 224 * (40%-160%) Page 115 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 60 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Nation Byproduct 6 (PFECA BP6) 5.76 Ux ND X 7.34 ng/g 127 (53%-153%) RR3 03/22/23 20:20 Nonafluoro-316-dioxaheptanoic 5.76 U ND 6.82 ng/g 118 (43%-163%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 5.76 U ND 6.80 ng/g 118 (48%-148%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - 5.76 Ux ND X 7.00 ng/g 121 (42%-167%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 5.76 UX ND X 6.61 ng/g 115 (49%-162%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 5.76 UX ND X 6.70 ng/g 116 (44%-167%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 5.76 UX ND X 6.98 ng/g 121 (57%-153%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 5.76 U ND 6.49 ng/g 113 (47%-166%) (PFMOBA) Perfluoro-2- 5.76 UX ND X 6.55 ng/g 114 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 5.76 UX ND X 6.34 ng/g 110 (49%-169%) (PFMOAA) Perfluoro-3-methoxypropanoic 5.76 U ND 6.98 ng/g 121 (40%-162%) acid (PFMOPrA) Perfluorobutanesulfonic acid 5.10 J 0.406 7.16 ng/g 132 (67%-146%) MB2 03/21/23 17:19 (PFBS) Perfluorobutanoic acid (PFBA) 5.76 J 0.395 7.43 ng/g 122 (56%-156%) Perfluorodecanesulfonic acid 5.56 U ND 6.96 ng/g 122 (61%-150%) (PFDS) Perfluorodecanoic acid (PFDA) 5.76 10.5 15.5 ng/g 86 (59%-153% Page 116 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 61 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Perfluorododecanesulfonic acid 5.58 U ND 6.30 ng/g 113 (39%-149%) MB2 03/21/23 17:19 (PFDoS) Perfluorododecanoic acid (PFDOA) 5.76 3.83 11.2 ng/g 129 (59%-147%) Perfluoroethoxypropionic acid 5.76 UX ND X 5.79 ng/g 100 (49%-151%) RR3 03/22/23 20:20 (EVE) Perfluoroheptanesulfonic acid 5.48 U ND 6.52 ng/g 119 (50%-156%) MB2 03/21/23 17:19 (PFHpS) Perfluoroheptanoic acid (PFHpA) 5.76 J 0.545 6.94 ng/g 111 (61%-149%) Perfluorohexanesulfonic acid 5.26 U ND 4.99 ng/g 95 (64%-150%) (PFHxS) Perfluorohexanoic acid (PFHxA) 5.76 0.680 7.12 ng/g 112 (61%-151%) Perfluorononanesulfonic acid 5.53 U ND 6.73 ng/g 122 (47%-147%) (PFNS) Perfluorononanoic acid (PFNA) 5.76 2.41 8.68 ng/g 109 (58%-152%) Perfluorooctanesulfonamide 5.76 U ND 6.68 ng/g 113 (68%-153%) (PFOSA) Perfluorooctanesulfonic acid 5.76 3.81 11.2 ng/g 127 (53%-157%) (PFOS) Perfluorooctanoic acid (PFOA) 5.76 4.17 11.8 ng/g 133 (53%-155%) Perfluoropentanesulfonic acid 5.42 U ND 5.31 ng/g 98 (58%-150%) (PFPeS) Perfluoropentanoic acid (PFPeA) 5.76 1.71 8.47 ng/g 117 (66%-150% Perfluorotetradecanoic acid (PFTA) 5.76 1.06 8.26 ng/g 125 (60%-157% Page 117 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 62 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Perfluorotridecanoic Acid (PFTriA) 5.76 7 0.477 6.96 ng/g 112 (35%-157%) MB2 03/21/23 17:19 Perfluoroundecanoic acid (PFUnA) 5.76 1.81 8.57 ng/g 117 (58%-154%) R-EVE 5.76 UX ND X 11.4 ng/g 198 * (40%-160%) RR3 03/22/23 20:20 QC1205350938 613703004 MSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 5.82 XU ND X 7.02 ng/g 11 121 (0%-30%) 03/22/23 20:35 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 5.48 U ND 6.04 ng/g 6 110 (0%-30%) MB2 03/21/2317:28 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 5.82 U ND 6.76 ng/g 8 116 (0%-30%) RR3 03/22/23 20:35 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 5.82 UX ND X 7.01 ng/g 9 120 (0%-30%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 5.82 U ND 6.22 ng/g 11 107 (0%-30%) MB2 03/21/2317:28 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 5.82 U ND 5.30 ng/g 27 91 (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 5.82 U ND 5.63 ng/g 12 97 (0%-30%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 5.82 U ND 5.90 ng/g 5 101 (0%-30%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 5.82 U ND 5.95 ng/g 2 102 (0%-30%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 5.82 U ND 6.32 ng/g 18 109 (0%-30%) acid (DONA,ADONA) 4- 5.82 UX ND X 6.93 ng/g 14 119 (0%-30%) RR3 03/22/23 20:35 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 5.42 U ND 6.07 ng/g 13 112 (0%-30%) MB2 03/21/2317:28 oxanonane-l-sulfonic acid (F-53B Major) Page 118 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 63 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Fluorotelomer sulfonic acid 4:2 (4:2 5.44 U ND 5.42 ng/g 11 100 (0%-30%) MB2 03/21/23 17:28 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 5.53 U ND 6.63 ng/g 1 114 (0%-30%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 5.59 U ND 6.47 ng/g 12 116 (0%-30%) FTS) Hydro -EVE 5.82 UX ND X 7.42 ng/g 7 127 (0%-30%) RR3 03/22/23 20:35 N-ethylperfluoro-1- 5.82 U ND 5.90 ng/g 7 101 (0%-30%) MB2 03/21/2317:28 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- 5.82 U ND 6.74 ng/g 4 ill (0%-30%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 5.82 U ND 6.46 ng/g 8 ill (0%-30%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 5.82 7 0.367 7.42 ng/g 6 121 (0%-30%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 5.82 UX ND X 7.84 ng/g 18 135 (0%-30%) RR3 03/22/23 20:35 Nation Byproduct 2 (PFESA BP2) 5.82 UX ND X 7.03 ng/g 12 121 (0%-30%) Nafion Byproduct 4 (PFESA BP4) 5.82 UX ND X 14.9 ng/g 7 256 * (0%-30%) Nafion Byproduct 5 (PFESA BP5) 5.82 UX ND X 14.1 ng/g 8 242 * (0%-30%) Nafion Byproduct 6 (PFESA BP6) 5.82 UX ND X 7.45 ng/g 2 128 (0%-30%) Nonafluoro-316-dioxaheptanoic 5.82 U ND 7.14 ng/g 5 123 (0%-30%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 5.82 U ND 7.00 ng/g 3 120 (0%-30% acid (PFEESA or PES) Page 119 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 64 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Perfluoro(3,5,7,9,11- 5.82 UX ND X 7.42 ng/g 6 128 (0%-30%) RR3 03/22/23 20:35 pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 5.82 UX ND X 7.16 ng/g 8 123 (0%-30%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 5.82 UX ND X 7.02 ng/g 5 121 (0%-30%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 5.82 UX ND X 7.14 ng/g 2 123 (0%-30%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 5.82 U ND 7.24 ng/g 11 124 (0%-30%) (PFMOBA) Perfluoro-2- 5.82 UX ND X 6.93 ng/g 6 119 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 5.82 UX ND X 6.89 ng/g 8 118 (0%-30%) (PFMOAA) Perfluoro-3-methoxypropanoic 5.82 U ND 7.26 ng/g 4 125 (0%-30%) acid (PFMOPrA) Perfluorobutanesulfonic acid 5.15 J 0.406 7.03 ng/g 2 129 (0%-30%) MB2 03/21/23 17:28 (PFBS) Perfluorobutanoic acid (PFBA) 5.82 J 0.395 7.15 ng/g 4 116 (0%-30%) Perfluorodecanesulfonic acid 5.62 U ND 6.53 ng/g 6 114 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 5.82 10.5 16.9 ng/g 9 110 (0%-30%) Perfluorododecanesulfonic acid 5.63 U ND 6.50 ng/g 3 115 (0%-30%) (PFDoS) Perfluorododecanoic acid (PFDOA) 5.82 3.83 10.3 ng/g 9 111 (0%-30%) Perfluoroethoxypropionic acid 5.82 UX ND X 6.93 ng/g 18 119 (0%-30%) RR3 03/22/23 20:35 (EVE) Page 120 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 65 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2401164 Perfluoroheptanesulfonic acid 5.53 U ND 6.61 ng/g 1 120 (0%-30%) MB2 03/21/23 17:28 (PFHpS) Perfluoroheptanoic acid (PFHpA) 5.82 7 0.545 6.48 ng/g 7 102 (0%-30%) Perfluorohexanesulfonic acid 5.31 U ND 6.07 ng/g 19 114 (0%-30%) (PFHxS) Perfluorohexanoic acid (PFHxA) 5.82 0.680 7.13 ng/g 0 ill (0%-30%) Perfluorononanesulfonic acid 5.59 U ND 6.37 ng/g 5 114 (0%-30%) (PFNS) Perfluorononanoic acid (PFNA) 5.82 2.41 8.96 ng/g 3 113 (0%-30%) Perfluorooctanesulfonamide 5.82 U ND 7.11 ng/g 6 120 (0%-30%) (PFOSA) Perfluorooctanesulfonic acid 5.82 3.81 10.2 ng/g 9 109 (0%-30%) (PFOS) Perfluorooctanoic acid (PFOA) 5.82 4.17 9.66 ng/g 20 94 (0%-30%) Perfluoropentanesulfonic acid 5.47 U ND 6.01 ng/g 12 110 (0%-30%) (PFPeS) Perfluoropentanoic acid (PFPeA) 5.82 1.71 9.20 ng/g 8 129 (0%-30%) Perfluorotetradecanoic acid (PFTA) 5.82 1.06 8.04 ng/g 3 120 (0%-30%) Perfluorotridecanoic Acid (PFTriA) 5.82 7 0.477 7.18 ng/g 3 115 (0%-30%) Perfluoroundecanoic acid (PFUnA) 5.82 1.81 7.94 ng/g 8 105 (0%-30%) R-EVE 5.82 UX ND X 10.1 ng/g 12 174 * (0%-30%) RR3 03/22/23 20:35 Notes Page 121 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 613703 Page 66 of 66 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time The Qualifiers in this report are defined as follows: U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. J Value is estimated P Organics --The concentrations between the primary and confirmation columns/detectors is >40% different. For HPLC, the difference is >70%. C Analyte has been confirmed by GUMS analysis B The target analyte was detected in the associated blank. E Concentration of the target analyte exceeds the instrument calibration range A The TIC is a suspected aldol-condensation product X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier N Organics --Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest internal standard response factor H Analytical holding time was exceeded ** Analyte is a surrogate compound < Result is less than value reported > Result is greater than value reported h Preparation or preservation holding time was exceeded R Sample results are rejected ^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. D Results are reported from a diluted aliquot of the sample N/A RPD or %Recovery limits do not apply. ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier JNX Non Calibrated Compound UJ Compound cannot be extracted Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. N1 See case narrative Y QC Samples were not spiked with this compound N Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest internal standard response factor J See case narrative for an explanation N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike cone. by a factor of 4 or more or %RPD not applicable. The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result. * Indicates that a Quality Control parameter was not within specifications. For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 122 of 136 SDG: 613703 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Client: NCDENR QC Summary Report Date: April 4, 2023 1641 Mail Service Center Page 1 of l Raleigh, North Carolina Contact: Stephanie Zorio Workorder: 613703 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Notes: TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma). The Qualifiers in this report are defined as follows: U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. J Value is estimated X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier H Analytical holding time was exceeded < Result is less than value reported > Result is greater than value reported UI Gamma Spectroscopy --Uncertain identification BD Results are either below the MDC or tracer recovery is low h Preparation or preservation holding time was exceeded R Sample results are rejected ^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. N/A RPD or %Recovery limits do not apply. ND Analyte concentration is not detected above the detection limit M M if above MDC and less than LLD NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier FA Failed analysis. UJ Gamma Spectroscopy --Uncertain identification Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. K Analyte present. Reported value may be biased high. Actual value is expected to be lower. UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias. L Analyte present. Reported value may be biased low. Actual value is expected to be higher. N1 See case narrative Y Other specific qualifiers were required to properly define the results. Consult case narrative. ** Analyte is a Tracer compound M REMP Result > MDC/CL and < RDL J See case narrative for an explanation N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike cone. by a factor of 4 or more or %RPD not applicable. ** Indicates analyte is a surrogate/tracer compound. ^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result. For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 123 of 136 SDG: 613703 d a C g C v a�i ^. 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R Lvn H r Z o z 3 C n o V yy Y N N � VJ •y C II VJ •��ri rN N W ? i U (1 v f V��i 3 Bi 2 C 47 t% r7 ry o .ti s Q i. vG0 �• _ II 6 Q o ¢ d m iG C] ti w L,k m N o z w a a w E `+ •� p7 rl Z Z .� U _ — -ttl - d U "c T d •b b Z d U ¢+ Z � aui W ITi G yy � ae sc —Uf"13i ( 13 70 a w° O' ii � h a` U (�' kJ II II II II b a nl m n ri v Sri . 0.� P7 U U C� Laboratories LiLq-,- SAMPLE RECEIPT & REVIEW FORM4 3� Clien SD('=/AR/COC/Work Order: Received By: MVH Date Received (7in• ppnoahlc: FedEx Express FedEx Ground UPS Field Services Courier Other Carrier and Tracking Number Suspected Hazard lnrormation z *If Net Counts> 100epm on samples not marled "radioactive", contact the Radiation Safely Group far further inves(igaliun. Hazard Class Shipped: UN#: A)Shipped as a DOT Hazudcros7 If UN2910, Is the Radioactive Shipment Survey Compliant? Yes No— B) Did the client designate the samples are to be COC natation or radioactive stickers on containers equal client designation. received as radioactive? C) Did the RSO classify the samples as aximum Net Counts ObservRaded* (Observed Couus - Area Background Counts): CPM /H aRr I i'ed COC notation or hazard labels on containers equal client designation. D) Did the client designate samples are hazardous? f D or E is yes. select Hazards below. Flammable Foreign Soil RCRA Asbestos Beryllium Other: E) Did the RSO identify possible hazards?PCB's Sample Receipt Criteria r Z Z Comments/Qualiflers (Required fur Non -Conforming Items) Shipping containers received intact andI Circle App[icabie: Seals broken Damaged conlamer Leaking conuainer Other (dessrribe) 1 sealed? Chain of custody documents included Circle Applicable:m Client cmncied and provided COC COC created upon receipt Z with shipment? Prcservatiun Metlr We Ice ce packs Dry ice NORe Other: 3 Samples requiring cold preservation *all tempemrune ed in Celsius TENIP- within (0 < 6 deg. C)?" Daily check performed and passed on IR Temperature Device Serial #:IR2-21 4 ? temperature gun. Secondary Temperature Device Serial It(If Applicable): Circle Applicable_ Seals hroken Dammed conlaurer Leaking container Other (describe) 5 Sample containers intact and sealed? Samples requiring chemise[ preservation Sample D's and Cnnminers Affected: 6 at proper pH? If preservation added- Lot#: If Yes, are Encores or Soil Kits present for solids? Yes_ No_ NA ((ryes- take to VOA Freezer) Do any samples require Volatile o liquid VOA vials contain acid preservation? Yes_ No_ NA (If unknown, select No) Are liquid VOA vials free of heaclspace? Yes_ No NA_ 7 Analysis? Sample ID's and conainers affected: ID's and tests affected: 8 Samples received within holding time? Sample ID's on COC match ID's on ID's and containersaffected: 9 bottles? 10 Date & time on COC match date & time Circle Applicable: No dates on containers No times on containers COC missing info Other (describe) on bottles? 11 Number of containers received match Circle Applicable: No container count on COC Od:cr (describe) number indicated on COC? 12 Are sample containers identifiable as �F GEL p,crvidrd by use of GEL labels? 1 COC form is properly signed in tmleApplicable- Not relinquished Other (describe) 13 relinquished/received sections? Comments (Use Continuation Form if needed): 4 FM;or PM.4) revierv; Initials Date Page � of GL-CHL-SR-001 Rev 7 Page 126 of 136 SDG: 613703 List of current GEL Certifications as of 04 April 2023 State Certification Alabama 42200 Alaska 17-018 Alaska Drinking Water SC00012 Arkansas 88-0651 CLIA 42DO904046 California 2940 Colorado SC00012 Connecticut PH-0169 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P330-15-00283, P330-15-00253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho SC00012 Illinois NELAP 200029 Indiana C-SC-01 Kansas NELAP E-10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana Drinking Water LA024 Louisiana NELAP 03046 (A133904) Maine 2019020 Maryland 270 Massachusetts M-SCO12 Massachusetts PFAS Approv Letter Michigan 9976 Mississippi SC00012 Nebraska NE-OS-26-13 Nevada SC000122023-4 New Hampshire NELAP 2054 New Jersey NELAP SCO02 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R-158 Oklahoma 2022-160 Pennsylvania NELAP 68-00485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 Sanitation Districts of L 9255651 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T104704235-22-20 Utah NELAP SC000122022-37 Vermont VT87156 Virginia NELAP 460202 Washington C780 Page 127 of 136 SDG: 613703 Technical Case Narrative NC Dept Environmental Quality SDG #: 613703 LCMSMS-Misc Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Analytical Procedure: GL-OA-E-076 REV# 13 Analytical Batches: 2400161 and 2400160 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 613703001 NCO026123-INF-20230308 1205348952 Method Blank (MB) 1205348953 Laboratory Control Sample (LCS) 1205348954 Laboratory Control Sample Duplicate (LCSD) The samples in this SDG were analyzed on an "as received" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Quality Control (QC) Information Method Blank (MB) Statement The blank analyzed with this SDG did not meet the established acceptance criteria for PPF Acid (PFPrA). The extraction cartridges used in the prep process contains PFF Acid (PFPrA) above GEL's reporting limit or exhibits an interference/enhancement mimicking PPF Acid (PFPrA). Levels detected in the samples and QC should be assessed accordingly. Sample Analyte Value 1205348952 (MB) Perfluoropropanoic acid (PFPrA) 5.83 * 10 > 4.5 Laboratory Control Sample Duplicate (LCSD) An LCSD was used in place of matrix QC due to limited sample volume. Laboratory Control Sample (LCS) Recovery The LCS and/or LCSD (See Below) did not meet the spike recovery acceptance limits with a positive bias. As target analytes were not detected in the associated samples, the data were not adversely impacted. Sample Analyte Value 1205348953 (LCS) 2-(N-ethylperfluoro-l-octanesulfonamido)-ethanol (N-EtFOSE) 131* (54%-128%) 2-(N-methylperfluoro-l-octanesulfonamido)-ethanol (N-McFOSE) 143* (52%-141%) N-methylperfluoro-l-octanesulfonamidoacetic acid (N-McFOSAA) 146* (59%-145%) 1205348954 (LCSD) 2-(N-ethylperfluoro-l-octanesulfonamido)-ethanol (N-EtFOSE) 142* (54%-128%) Page 128 of 136 SDG: 613703 2-(N-methylperfluoro-l-octanesulfonamido)-ethanol (N-McFOSE) 147* (52%-141%) Internal Standard (ISTD) Acceptance Sample 613703001 (NC0026123-INF-20230308) did not meet acceptance criteria for one or more internal standards with a negative bias. The sample was diluted in order to bring internal standards within acceptance criteria. The sample was then re -extracted and the low internal standard failures were confirmed, therefore the failures were attributed to matrix interference. The results for this sample were reported from the undiluted and diluted analyses of the original extraction. Technical Information Sample Dilutions The following sample and/or QC were diluted due to the Internal Standard Recovery not within the limits in the undiluted analysis. 613703001 (NC0026123-INF-20230308). Analyte 613703 001 Fluorotelomer sulfonic acid 4:2 (4:2 FTS) 125X Fluorotelomer sulfonic acid 8:2 (8:2 FTS) 125X Perfluorobutanoic acid (PFBA) 5X Perfluorohexadecanoic acid (PFHxDA) 5X Perfluorooctadecanoic acid (PFODA) 5X Perfluorotetradecanoic acid (PFTA) 5X Perfluorotridecanoic Acid (PFTriA) 5X Miscellaneous Information Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. Samples 613703001 (NC0026123-INF-20230308) did not meet acceptance criteria for one or more internal standards with a positive bias. The samples were diluted in order to bring internal standards within acceptance criteria. The results for these samples were reported from the undiluted and diluted analyses. Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Ana"cal Method: EPA 537.1 Modified Ana"cal Procedure: GL-OA-E-076 REV# 13 Ana"cal Batches: 2400381 and 2400378 The following samples were analyzed using the above methods and analytical procedure(s) GEL Sample ID# Client Sample Identification 613703003 NCO026123-BIOS-20230308 1205349339 Method Blank (MB) 1205349340 Laboratory Control Sample (LCS) 1205349341 613703003(NC0026123-BIOS-20230308) Matrix Spike (MS) 1205349342 613703003(NC0026123-BIOS-20230308) Matrix Spike Duplicate (MSD) Page 129 of 136 SDG: 613703 The samples in this SDG were analyzed on a "dry weight" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Calibration Information CCV Requirements Calibration verification standards (ICV or CCV) requirements have not been met for samples in this batch in this SDG. One or more target analytes failed acceptance criteria with a positive bias in the standards bracketing the samples in this SDG. These target analytes were not detected in the associated environmental samples; therefore, the non-compliance had no adverse effect on the data. Quality Control (QQ Information Laboratory Control Sample (LCS) Recovery The LCS and/or LCSD (See Below) did not meet the spike recovery acceptance limits with a positive bias. As target analytes were not detected in the associated samples, the data were not adversely impacted. Sample Analyte Value 1205349340 (LCS) N-methylperfluoro-l-octanesulfonamide (N-McFOSA) 140* (70/ 136%) Matrix Spike (MS) Recovery Statement The MS or MSD (See Below) recovered spiked analytes outside of the established acceptance limits. As similar recoveries were displayed in the MS and MSD, the failures were attributed to sample matrix interference and the data were reported. Sample Analyte Value 1205349341 N-methylperfluoro-l-octanesulfonamidoacetic acid 158* (NC0026123-BIOS-20230308MS) (N-McFOSAA) (59%-152%) Nafion Byproduct 4 (PFESA BP4) 470* (40%-160%) Nafion Byproduct 5 (PFESA BP5) 333* (40%-160%) 400* R-EVE (40%-160%) 1205349342 Nafion Byproduct 4 (PFESA BP4) 570* (NC0026123-BIOS-20230308MSD) (40%-160%) Nafion Byproduct 5 (PFESA BP5) 359* (40%-160%) 418* R-EVE (40%-160%) MS/MSD Relative Percent Difference (RPD) Statement The RPD values between the MS and MSD (See Below) were not within the acceptance limits. Since all other RPD values met acceptance criteria, the noted exceptions are attributed to vagaries in the extraction process. The Page 130 of 136 SDG: 613703 data are reported. Sample Analyte Value 120534934IMS and 1205349342MSD 2-(N-ethylperfluoro-l-octanesulfonamido)-ethanol RPD 38* (NC0026123-BIOS-20230308) (N-EtFOSE) (0%-30%) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) RPD 54* (0%-30%) Internal Standard (ISTD) Acceptance Sample and its MS/MSD pair 1205349341 (NC0026123-BIOS-20230308MS), 1205349342 (NC0026123-BIOS-20230308MSD) and 613703003 (NC0026123-BIOS-20230308) did not meet acceptance criteria for one or more internal standards. The samples were diluted in order to bring internal standards within acceptance criteria. As the MS/MSD pair failed internal standard criteria in the same manner as the parent sample, the failures were attributed to matrix interference. The results for these samples were reported from the undiluted and diluted analyses. Technical Information Sample Dilutions The following samples and/or QC were diluted due to matrix interference. 1205349341 (NC0026123-BIOS-20230308MS), 1205349342 (NC0026123-BIOS-20230308MSD) and 613703003 (NC0026123-BIO 5-202303 08). Analyte 613703 003 Fluorotelomer sulfonic acid 8:2 (8:2 FTS) 5X Miscellaneous Information Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Analytical Procedure: GL-OA-E-076 REV# 13 Analytical Batches: 2400729 and 2400727 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# 613703002 613703006 613703007 613703008 613703009 613703010 613703011 613703012 Client Sample Identification NCO026123-EFF-20230308 AsheboroW W TP-FRB-20230308 AsheboroField-FRB-2023 0308 EB-CC-ExtendableDipper EB-CC-Trowel EB-CC-Soil probe EB-CC-Dipper2 EB-CC-Dipperl Page 131 of 136 SDG: 613703 613703013 EB-CC-MetalBucket 1205350050 Method Blank (MB) 1205350051 Laboratory Control Sample (LCS) 1205350052 Laboratory Control Sample Duplicate (LCSD) The samples in this SDG were analyzed on an "as received" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Calibration Information CCB Requirements The continuing calibration verifications (CCVs) were outside the acceptable criteria for PFMOBA with a positive bias. There were no hits for PFMOBA in any of the unknown samples. Thus, this was not a factor in the analysis. 1205350050 (MB), 1205350051 (LCS), 1205350052 (LCSD), 613703001 (NC0026123-INF-20230308), 613703002 (NC0026123-EFF-20230308), 613703006 (AsheboroWWTP-FRB-20230308), 613703007 (AsheboroField-FRB-20230308), 613703008 (EB-CC-ExtendableDipper), 613703009 (EB-CC-Trowel) and 613703010 (EB-CC-Soil probe). Quality Control (QQ Information Method Blank (MB) Statement The blank analyzed with this SDG did not meet the established acceptance criteria for PPF Acid (PFPrA). The extraction cartridges used in the prep process contains PFF Acid (PFPrA) above GEL's reporting limit or exhibits an interference/enhancement mimicking PPF Acid (PFPrA). Levels detected in the samples and QC should be assessed accordingly. Sample Analyte Value 1205350050 (MB) Perfluoropropanoic acid (PFPrA) 4.14 * 10 > 1.95 Laboratory Control Sample Duplicate (LCSD) An LCSD was used in place of matrix QC due to limited sample volume. LCS/LCSD Relative Percent Difference (RPD) Statement Not all of the relative percent differences (RPDs) between the LCS and the LCSD were within the acceptance limits for this SDG. However, the LCS and LCSD recoveries were all acceptable. Sample Analyte Value 1205350051 (LCS) and 1205350052 (LCSD) Nation Byproduct 4 (PFESA BP4) RPD 69* (0%-45%) Nation Byproduct 5 (PFESA BP5) RPD 76* (0%-40%) R-EVE RPD 47* (0%-26%) Internal Standard (ISTD) Acceptance Samples 613703002 (NC0026123-EFF-20230308), 613703011 (EB-CC-Dipper2), 613703012 (EB-CC-Dipperl) and 613703013 (EB-CC-MetalBucket) did not meet acceptance criteria for one or more internal standards with a positive bias. The samples were diluted in order to bring internal standards within acceptance criteria. The results for these samples were reported from the undiluted and diluted analyses. Page 132 of 136 SDG: 613703 Technical Information Sample Dilutions The following samples were diluted to bring the over range concentrations within the calibration range. 613703002 (NC0026123-EFF-20230308), 613703012 (EB-CC-Dipperl) and 613703013 (EB-CC-MetalBucket). Analyte 613703 002 012 013 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 1X 1X 5X 9-Chlorohexadecafluoro-3-oxanonane-l-sulfonic acid (F-53B Major) 1X 1X 5X Fluorotelomer sulfonic acid 4:2 (4:2 FTS) 25X 5X 5X Perfluorododecanesulfonic acid (PFDoS) 1X 1X 5X Perfluorodecanesulfonic acid (PFDS) 1X 1X 5X Perfluorodecanoic acid (PFDA) 1X 5X 5X Perfluoroheptanesulfonic acid (PFHpS) 1X 1X 5X Perfluoroheptanoic acid (PFHpA) 1X 5X 5X Perfluorohexanesulfonic acid (PFHxS) 1X 1X 5X Perfluorononanesulfonic acid (PFNS) 1X 1X 5X Perfluorononanoic acid (PFNA) 1X 1X 5X Perfluorooctanesulfonic acid (PFOS) 1X 1X 5X Perfluorooctanoic acid (PFDA) 1X 1X 5X Perfluoropentanesulfonic acid (PFPeS) 1X 1X 5X Perfluoroundecanoic acid (PFUnA) 1X 1X 5X 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1X 1X SX Miscellaneous Information Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Analytical Procedure: GL-OA-E-076 REV# 13 Analytical Batches: 2401145 and 2401141 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 613703005 TB-Asheboro-20230308 1205350873 Method Blank (MB) 1205350874 Laboratory Control Sample (LCS) 1205350875 Laboratory Control Sample Duplicate (LCSD) The samples in this SDG were analyzed on an "as received" basis. Page 133 of 136 SDG: 613703 Data Summary All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Calibration Information CCB Requirements A continuing calibration verification (CCV) was outside the acceptable criteria for PFEESA with a positive bias. There were no hits for PFEESA in any of the unknown samples bracketed by this CCV. Thus, this was not a factor in the analysis. Quality Control (QQ Information Method Blank (MB) Statement The blank analyzed with this SDG did not meet the established acceptance criteria for PPF Acid (PFPrA). The extraction cartridges used in the prep process contains PFF Acid (PFPrA) above GEL's reporting limit or exhibits an interference/enhancement mimicking PPF Acid (PFPrA). Levels detected in the samples and QC should be assessed accordingly. Sample Analyte Value 1205350873 (MB) Perfluoropropanoic acid (PFPrA) 4.71 * 10 > 4.84 There were confirmed hits of target analytes in the blank above the MDL but below the PQL. Samples with similar hits above the MDL but below the PQL were re -extracted with the exception of 613703005 and 614487016. There were no additional sample containers to allow for re -extractions therefore data for these samples were reported as is. Results for sample 614969006 were also reported from this extraction batch because the 6:2 FTS was not detected above the MDL in this sample. 613703005 (TB-Asheboro-20230308). Laboratory Control Sample Duplicate (LCSD) An LCSD was used in place of matrix QC due to limited sample volume. Laboratory Control Sample (LCS) Recovery The LCS and/or LCSD (See Below) did not meet the spike recovery acceptance limits with a positive bias. As target analytes were not detected in the associated samples, the data were not adversely impacted. Sample Analyte Value 1205350874 (LCS) N-methylperfluoro-l-octanesulfonamide (N-McFOSA) 167* (20%-154%) 1205350875 (LCSD) 2-(N-ethylperfluoro-l-octanesulfonamido)-ethanol (N-EtFOSE) 139* (54%-128%) N-methylperfluoro- I -octanesulfonamide (N-McFOSA) 160* (20%-154%) Perfluoroheptanoic acid (PFHpA) 135* (71%-133%) Perfluoropentanesulfonic acid (PFPeS) 137* (67%-136%) Miscellaneous Information Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. Page 134 of 136 SDG: 613703 Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Analytical Procedure: GL-OA-E-076 REV# 13 Analytical Batches: 2401164 and 2401162 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 613703004 NCO026123-GUIS-20230308 1205350935 Method Blank (MB) 1205350936 Laboratory Control Sample (LCS) 1205350937 613703004(NC0026123-GUIS-20230308) Matrix Spike (MS) 1205350938 613703004(NC0026123-GUIS-20230308) Matrix Spike Duplicate (MSD) The samples in this SDG were analyzed on a "dry weight" basis. Data Summary All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Quality Control (QC1 Information Matrix Spike (MS) Recovery Statement The MS or MSD (See Below) recovered spiked analytes outside of the established acceptance limits. As similar recoveries were displayed in the MS and MSD, the failures were attributed to sample matrix interference and the data were reported. Sample Analyte Value 1205350937 (NC0026123-GUIS-20230308MS) Nafion Byproduct 4 (PFESA BP4) 241* (40%-160%) Nafion Byproduct 5 (PFESA BP5) 224* (40%-160%) R-EVE 198* (40%-160%) 1205350938 (NC0026123-GUIS-20230308MSD) Nafion Byproduct 4 (PFESA BP4) 256* (40%-160%) Nafion Byproduct 5 (PFESA BP5) 242* (40%-160%) R-EVE 174* (40%-160%) Miscellaneous Information Manual Integrations Some initial calibration standards, continuing calibration standards, and/or samples required manual integrations due to software limitations. 613703003 (NC0026123-BIOS-20230308). Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. 613703003 (NC0026123-BIOS-20230308) and 613703004 (NC0026123-GUIS-20230308). Certification Statement Page 135 of 136 SDG: 613703 Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 136 of 136 SDG: 613703