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NC0026123_Lab Data_20230504
® Laboratories LLc a member of The GEL Group INC May 19, 2023 Stephanie Zorio NCDENR 1641 Mail Service Center Raleigh, North Carolina 27607 Re: Biosolids Sampling Work Order: 621012 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 May 05, 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, Adrian Melendrez for Delaney Stone Project Manager Purchase Order: NCDAQ Enclosures gel. com Page 1 of 129 SDG: 621012 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: 621012 GEL Work Order: 621012 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 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-TB-20230504 Project: NCDQ00123 Sample ID: 621012001 Client ID: NCDQ001 Matrix: Water Collect Date: 04-MAY-23 07:56 Receive Date: 05-MAY-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 0.193 0.481 ng/L 0.0193 1 RR3 05/18/23 0539 2426059 1 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND 0.193 0.481 ng/L 0.0193 1 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 0.193 0.481 ng/L 0.0193 1 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nation Byproduct 4 (PFESA BP4) UX ND 0.193 0.481 ng/L 0.0193 1 Nafion Byproduct 5 (PFESA BP5) UX ND 0.193 0.481 ng/L 0.0193 1 Nafion Byproduct 6 (PFESA BP6) UX ND 0.193 0.481 ng/L 0.0193 1 Hydro -EVE UX ND 0.193 0.481 ng/L 0.0193 1 Nation Byproduct 1 (PFESA BPI) UX ND 0.193 0.481 ng/L 0.0193 1 Nafion Byproduct 2 (PFESA BP2) UX ND 0.193 0.481 ng/L 0.0193 1 Nonafluoro-3,6-dioxahepanoic U ND 0.193 0.481 ng/L 0.0193 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.193 0.481 ng/L 0.0193 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.193 0.481 ng/L 0.0193 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.193 0.481 ng/L 0.0193 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.193 0.481 ng/L 0.0193 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.193 0.481 ng/L 0.0193 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.193 0.481 ng/L 0.0193 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.193 0.481 ng/L 0.0193 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.193 0.481 ng/L 0.0193 1 (EVE) Perfluoropropanoic acid (PFPrA) BJX 7.89 7.70 19.3 ng/L 0.0193 1 R-EVE UX ND 1.27 3.85 ng/L 0.0193 1 Perfluoro(3,5,7,9,1 1 - UX ND 0.193 0.481 ng/L 0.0193 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.193 0.481 ng/L 0.0193 1 (pentafluoroethoxy)propanoic acid Page 3 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-TB-20230504 Project: NCDQ00123 Sample ID: 621012001 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 0.193 0.385 ng/L 0.0193 1 (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- U ND 0.635 1.93 ng/L 0.0193 1 JMB3 05/10/23 2310 2426059 2 oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- U ND 1.27 3.85 ng/L 0.0193 1 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND 1.27 3.85 ng/L 0.0193 1 octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND 1.27 3.78 ng/L 0.0193 1 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 1.27 3.62 ng/L 0.0193 1 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND 5.18 14.4 ng/L 0.0193 1 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 1.27 3.70 ng/L 0.0193 1 FTS) N-ethylperfluoro-1- U ND 1.27 3.85 ng/L 0.0193 1 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- U ND 1.27 3.85 ng/L 0.0193 1 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- U ND 1.27 3.85 ng/L 0.0193 1 octanesulfonamide (N-McFOSA) N-methylperfluoro-1- U ND 1.27 3.85 ng/L 0.0193 1 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.635 3.85 ng/L 0.0193 1 (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND 0.635 1.71 ng/L 0.0193 1 Perfluorobutanoic acid (PFBA) U ND 0.770 1.93 ng/L 0.0193 1 Perfluorodecanesulfonic acid U ND 0.635 1.87 ng/L 0.0193 1 (PFDS) Perfluorodecanoic acid (PFDA) U ND 0.751 1.93 ng/L 0.0193 1 Perfluorododecanoic acid (PFDOA) U ND 0.635 1.93 ng/L 0.0193 1 Page 4 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-TB-20230504 Project: NCDQ00123 Sample ID: 621012001 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 0.635 1.83 ng/L 0.0193 1 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND 0.635 1.93 ng/L 0.0193 1 Perfluorohexadecanoic acid U ND 1.27 3.85 ng/L 0.0193 1 (PFHxDA) Perfluorohexanesulfonic acid U ND 0.635 1.75 ng/L 0.0193 1 (PFHxS) Perfluorohexanoic acid (PFHxA) U ND 0.770 1.93 ng/L 0.0193 1 Perfluorononanesulfonic acid U ND 0.674 1.85 ng/L 0.0193 1 (PFNS) Perfluorononanoic acid (PFNA) U ND 0.635 1.93 ng/L 0.0193 1 Perfluorooctadecanoic acid U ND 1.27 3.85 ng/L 0.0193 1 (PFODA) Perfluorooctanesulfonamide U ND 0.635 1.93 ng/L 0.0193 1 (PFOSA) Perfluorooctanesulfonic acid (PFOS) U ND 0.770 1.93 ng/L 0.0193 1 Perfluorooctanoic acid (PFOA) U ND 0.770 1.93 ng/L 0.0193 1 Perfluoropentanesulfonic acid U ND 0.635 1.81 ng/L 0.0193 1 (PFPeS) Perfluoropentanoic acid (PFPeA) U ND 0.635 1.93 ng/L 0.0193 1 Perfluorotetradecanoic acid (PFTA) U ND 0.770 1.93 ng/L 0.0193 1 Perfluorotridecanoic Acid (PFTriA) U ND 0.635 1.93 ng/L 0.0193 1 Perfluoroundecanoic acid (PFUnA) U ND 0.635 1.93 ng/L 0.0193 1 4,8-Dioxa-3H-perfluorononanoic U ND 0.635 1.93 ng/L 0.0193 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 RR4 05/09/23 1346 2426055 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified Notes: Page 5 of 129 SDG: 621012 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: NCO024210-TB-20230504 Sample ID: 621012001 Report Date: May 19, 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 6 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-FRB-20230504 Project: NCDQ00123 Sample ID: 621012002 Client ID: NCDQ001 Matrix: Water Collect Date: 04-MAY-23 09:26 Receive Date: 05-MAY-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 0.191 0.479 ng/L 0.0191 1 RR3 05/18/23 0554 2426059 1 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND 0.191 0.479 ng/L 0.0191 1 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 0.191 0.479 ng/L 0.0191 1 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nation Byproduct 4 (PFESA BP4) UX ND 0.191 0.479 ng/L 0.0191 1 Nafion Byproduct 5 (PFESA BP5) UX ND 0.191 0.479 ng/L 0.0191 1 Nafion Byproduct 6 (PFESA BP6) XU ND 0.191 0.479 ng/L 0.0191 1 Hydro -EVE UX ND 0.191 0.479 ng/L 0.0191 1 Nation Byproduct 1 (PFESA BPI) UX ND 0.191 0.479 ng/L 0.0191 1 Nafion Byproduct 2 (PFESA BP2) UX ND 0.191 0.479 ng/L 0.0191 1 Nonafluoro-3,6-dioxahepanoic U ND 0.191 0.479 ng/L 0.0191 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.191 0.479 ng/L 0.0191 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.191 0.479 ng/L 0.0191 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.191 0.479 ng/L 0.0191 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.191 0.479 ng/L 0.0191 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.191 0.479 ng/L 0.0191 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.191 0.479 ng/L 0.0191 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.191 0.479 ng/L 0.0191 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.191 0.479 ng/L 0.0191 1 (EVE) Perfluoropropanoic acid (PFPrA) BJX 9.49 7.66 19.1 ng/L 0.0191 1 R-EVE UX ND 1.26 3.83 ng/L 0.0191 1 Perfluoro(3,5,7,9,1 1 - UX ND 0.191 0.479 ng/L 0.0191 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.191 0.479 ng/L 0.0191 1 (pentafluoroethoxy)propanoic acid Page 7 of 129 SDG: 621012 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: NCO024210-FRB-20230504 Sample ID: 621012002 Parameter Qualifier Result LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PEPA) Perfluoro-2- UX ND (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- 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-1- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 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 Report Date: May 19, 2023 Project: NCDQ00123 Client ID: NCDQ001 DL RL Units PF DF Analyst Date Time Batch Method 0.191 0.383 ng/L 0.0191 1 0.632 1.91 ng/L 0.0191 1 JMB3 05/10/23 2319 2426059 1.26 3.83 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 1.26 3.76 ng/L 0.0191 1 1.26 3.60 ng/L 0.0191 1 5.15 14.4 ng/L 0.0191 1 1.26 3.68 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 0.632 3.83 ng/L 0.0191 1 0.632 1.70 ng/L 0.0191 1 0.766 1.91 ng/L 0.0191 1 0.632 1.86 ng/L 0.0191 1 0.747 1.91 ng/L 0.0191 1 0.632 1.91 ng/L 0.0191 1 FA Page 8 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-FRB-20230504 Project: NCDQ00123 Sample ID: 621012002 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 0.632 1.82 ng/L 0.0191 1 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND 0.632 1.91 ng/L 0.0191 1 Perfluorohexadecanoic acid U ND 1.26 3.83 ng/L 0.0191 1 (PFHxDA) Perfluorohexanesulfonic acid U ND 0.632 1.74 ng/L 0.0191 1 (PFHxS) Perfluorohexanoic acid (PFHxA) U ND 0.766 1.91 ng/L 0.0191 1 Perfluorononanesulfonic acid U ND 0.670 1.84 ng/L 0.0191 1 (PFNS) Perfluorononanoic acid (PFNA) U ND 0.632 1.91 ng/L 0.0191 1 Perfluorooctadecanoic acid U ND 1.26 3.83 ng/L 0.0191 1 (PFODA) Perfluorooctanesulfonamide U ND 0.632 1.91 ng/L 0.0191 1 (PFOSA) Perfluorooctanesulfonic acid (PFOS) U ND 0.766 1.91 ng/L 0.0191 1 Perfluorooctanoic acid (PFOA) U ND 0.766 1.91 ng/L 0.0191 1 Perfluoropentanesulfonic acid U ND 0.632 1.80 ng/L 0.0191 1 (PFPeS) Perfluoropentanoic acid (PFPeA) U ND 0.632 1.91 ng/L 0.0191 1 Perfluorotetradecanoic acid (PFTA) U ND 0.766 1.91 ng/L 0.0191 1 Perfluorotridecanoic Acid (PFTriA) U ND 0.632 1.91 ng/L 0.0191 1 Perfluoroundecanoic acid (PFUnA) U ND 0.632 1.91 ng/L 0.0191 1 4,8-Dioxa-3H-perfluorononanoic U ND 0.632 1.91 ng/L 0.0191 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 RR4 05/09/23 1346 2426055 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified Notes: Page 9 of 129 SDG: 621012 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: NCO024210-FRB-20230504 Sample ID: 621012002 Report Date: May 19, 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 129 SDG: 621012 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-FRB-20230504-SO Sample ID: 621012003 Matrix: Water Collect Date: 04-MAY-23 12:07 Receive Date: 05-MAY-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: May 19, 2023 Project: NCDQ00123 Client ID: NCDQ001 DL RL Units PF DF Analyst Date Time Batch Method 0.628 1.90 ng/L 0.0190 1 JMB3 05/10/23 2328 2426059 1 1.26 3.81 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 1.26 3.74 ng/L 0.0190 1 1.26 3.58 ng/L 0.0190 1 5.12 14.3 ng/L 0.0190 1 1.26 3.66 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 0.628 3.81 ng/L 0.0190 1 0.628 1.69 ng/L 0.0190 1 0.761 1.90 ng/L 0.0190 1 0.628 1.85 ng/L 0.0190 1 0.742 1.90 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 0.628 1.81 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 Page 11 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-FRB-20230504-SO Project: NCDQ00123 Sample ID: 621012003 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 0.628 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 (PFESA) 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) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND 0.190 0.476 ng/L 0.0190 1 RR3 05/18/23 0609 2426059 2 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) Nafion Byproduct 4 (PFESA BP4) UX ND 0.190 0.476 ng/L 0.0190 1 Nation Byproduct 5 (PFESA BP5) UX ND 0.190 0.476 ng/L 0.0190 1 Nation 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-dioxaheptanoic 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 Page 12 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-FRB-20230504-SO Project: NCDQ00123 Sample ID: 621012003 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 0.190 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) BJX 8.89 7.61 19.0 ng/L 0.0190 1 R-EVE UX ND 1.26 3.81 ng/L 0.0190 1 Perfluoro(3,5,7,9,11- 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 (PEPA) Perfluoro-2- UX ND 0.190 0.381 ng/L 0.0190 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 RR4 05/09/23 1346 2426055 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified Notes: Page 13 of 129 SDG: 621012 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-FRB-20230504-SO Sample ID: 621012003 Report Date: May 19, 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 14 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-FRB-20230504 Project: NCDQ00123 Sample ID: 621012004 Client ID: NCDQ001 Matrix: Water Collect Date: 04-MAY-23 10:35 Receive Date: 05-MAY-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 0.191 0.479 ng/L 0.0191 1 RR3 05/18/23 0052 2428642 1 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND 0.191 0.479 ng/L 0.0191 1 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 0.191 0.479 ng/L 0.0191 1 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nation Byproduct 4 (PFESA BP4) UX ND 0.191 0.479 ng/L 0.0191 1 Nafion Byproduct 5 (PFESA BP5) UX ND 0.191 0.479 ng/L 0.0191 1 Nafion Byproduct 6 (PFESA BP6) UX ND 0.191 0.479 ng/L 0.0191 1 Hydro -EVE UX ND 0.191 0.479 ng/L 0.0191 1 Nation Byproduct 1 (PFESA BPI) UX ND 0.191 0.479 ng/L 0.0191 1 Nafion Byproduct 2 (PFESA BP2) UX ND 0.191 0.479 ng/L 0.0191 1 Nonafluoro-3,6-dioxahepanoic U ND 0.191 0.479 ng/L 0.0191 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.191 0.479 ng/L 0.0191 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.191 0.479 ng/L 0.0191 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.191 0.479 ng/L 0.0191 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.191 0.479 ng/L 0.0191 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.191 0.479 ng/L 0.0191 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.191 0.479 ng/L 0.0191 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.191 0.479 ng/L 0.0191 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.191 0.479 ng/L 0.0191 1 (EVE) Perfluoropropanoic acid (PFPrA) JX 9.23 7.66 19.1 ng/L 0.0191 1 R-EVE UX ND 1.26 3.83 ng/L 0.0191 1 Perfluoro(3,5,7,9,1 1 - UX ND 0.191 0.479 ng/L 0.0191 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.191 0.479 ng/L 0.0191 1 (pentafluoroethoxy)propanoic acid Page 15 of 129 SDG: 621012 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-FRB-20230504 Sample ID: 621012004 Parameter Qualifier Result LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" (PEPA) Perfluoro-2- UX ND (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- 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-1- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 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 Report Date: May 19, 2023 Project: NCDQ00123 Client ID: NCDQ001 DL RL Units PF DF Analyst Date Time Batch Method 0.191 0.383 ng/L 0.0191 1 0.632 1.91 ng/L 0.0191 1 JMB3 05/16/23 1036 2428642 1.26 3.83 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 1.26 3.76 ng/L 0.0191 1 1.26 3.60 ng/L 0.0191 1 5.15 14.4 ng/L 0.0191 1 1.26 3.68 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 1.26 3.83 ng/L 0.0191 1 0.632 3.83 ng/L 0.0191 1 0.632 1.70 ng/L 0.0191 1 0.766 1.91 ng/L 0.0191 1 0.632 1.86 ng/L 0.0191 1 0.747 1.91 ng/L 0.0191 1 0.632 1.91 ng/L 0.0191 1 FA Page 16 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-FRB-20230504 Project: NCDQ00123 Sample ID: 621012004 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 0.632 1.82 ng/L 0.0191 1 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND 0.632 1.91 ng/L 0.0191 1 Perfluorohexadecanoic acid U ND 1.26 3.83 ng/L 0.0191 1 (PFHxDA) Perfluorohexanesulfonic acid U ND 0.632 1.74 ng/L 0.0191 1 (PFHxS) Perfluorohexanoic acid (PFHxA) U ND 0.766 1.91 ng/L 0.0191 1 Perfluorononanesulfonic acid U ND 0.670 1.84 ng/L 0.0191 1 (PFNS) Perfluorononanoic acid (PFNA) U ND 0.632 1.91 ng/L 0.0191 1 Perfluorooctadecanoic acid U ND 1.26 3.83 ng/L 0.0191 1 (PFODA) Perfluorooctanesulfonamide U ND 0.632 1.91 ng/L 0.0191 1 (PFOSA) Perfluorooctanesulfonic acid (PFOS) U ND 0.766 1.91 ng/L 0.0191 1 Perfluorooctanoic acid (PFOA) U ND 0.766 1.91 ng/L 0.0191 1 Perfluoropentanesulfonic acid U ND 0.632 1.80 ng/L 0.0191 1 (PFPeS) Perfluoropentanoic acid (PFPeA) U ND 0.632 1.91 ng/L 0.0191 1 Perfluorotetradecanoic acid (PFTA) U ND 0.766 1.91 ng/L 0.0191 1 Perfluorotridecanoic Acid (PFTriA) U ND 0.632 1.91 ng/L 0.0191 1 Perfluoroundecanoic acid (PFUnA) U ND 0.632 1.91 ng/L 0.0191 1 4,8-Dioxa-3H-perfluorononanoic U ND 0.632 1.91 ng/L 0.0191 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 BPI 05/15/23 1253 2428641 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified Notes: Page 17 of 129 SDG: 621012 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-FRB-20230504 Sample ID: 621012004 Report Date: May 19, 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 18 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-EFF-20230504 Project: NCDQ00123 Sample ID: 621012005 Client ID: NCDQ001 Matrix: Waste Water Collect Date: 04-MAY-23 09:30 Receive Date: 05-MAY-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 0.182 0.455 ng/L 0.0182 1 RR3 05/12/23 0436 2424988 1 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- J 0.268 0.182 0.455 ng/L 0.0182 1 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 0.182 0.455 ng/L 0.0182 1 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nation Byproduct 4 (PFESA BP4) UX ND 0.182 0.455 ng/L 0.0182 1 Nafion Byproduct 5 (PFESA BP5) X 0.951 0.182 0.455 ng/L 0.0182 1 Nafion Byproduct 6 (PFESA BP6) UX ND 0.182 0.455 ng/L 0.0182 1 Hydro -EVE UX ND 0.182 0.455 ng/L 0.0182 1 Nation Byproduct I (PFESA BPI) UX ND 0.182 0.455 ng/L 0.0182 1 Nation Byproduct 2 (PFESA BP2) UX ND 0.182 0.455 ng/L 0.0182 1 Nonafluoro-3,6-dioxahepanoic J 0.263 0.182 0.455 ng/L 0.0182 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.182 0.455 ng/L 0.0182 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.182 0.455 ng/L 0.0182 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.182 0.455 ng/L 0.0182 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.182 0.455 ng/L 0.0182 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.182 0.455 ng/L 0.0182 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.182 0.455 ng/L 0.0182 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.182 0.455 ng/L 0.0182 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.182 0.455 ng/L 0.0182 1 (EVE) Perfluoropropanoic acid (PFPrA) JX 13.0 7.28 18.2 ng/L 0.0182 1 R-EVE UX ND 1.20 3.64 ng/L 0.0182 1 Perfluoro(3,5,7,9,1I- UX ND 0.182 0.455 ng/L 0.0182 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.182 0.455 ng/L 0.0182 1 (pentafluoroethoxy)propanoic acid Page 19 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-EFF-20230504 Project: NCDQ00123 Sample ID: 621012005 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- A 0.186 0.182 0.364 ng/L 0.0182 1 (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- U ND 0.600 1.82 ng/L 0.0182 1 JMB3 05/08/23 1629 2424988 2 oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- U ND 1.20 3.64 ng/L 0.0182 1 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND 1.20 3.64 ng/L 0.0182 1 octanesulfonamido)-ethanol (N- McFOSE) 9-Chlorohexadecafluoro-3- U ND 1.20 3.57 ng/L 0.0182 1 oxanonane-l-sulfonic acid (F-53B Major) N-ethylperfluoro-l- U ND 1.20 3.64 ng/L 0.0182 1 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND 1.20 3.64 ng/L 0.0182 1 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND 1.20 3.64 ng/L 0.0182 1 octanesulfonamide (N-McFOSA) N-methylperfluoro-l- J 1.56 1.20 3.64 ng/L 0.0182 1 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.600 3.64 ng/L 0.0182 1 (PFDoS) Perfluorobutanesulfonic acid (PFBS) 7.13 0.600 1.62 ng/L 0.0182 1 Perfluorobutanoic acid (PFBA) 23.4 0.728 1.82 ng/L 0.0182 1 Perfluorodecanesulfonic acid U ND 0.600 1.77 ng/L 0.0182 1 (PFDS) Perfluorodecanoic acid (PFDA) J 1.19 0.710 1.82 ng/L 0.0182 1 Perfluorododecanoic acid (PFDOA) U ND 0.600 1.82 ng/L 0.0182 1 Perfluoroheptanesulfonic acid U ND 0.600 1.73 ng/L 0.0182 1 (PFHpS) Perfluoroheptanoic acid (PFHpA) 5.30 0.600 1.82 ng/L 0.0182 1 Perfluorohexadecanoic acid U ND 1.20 3.64 ng/L 0.0182 1 (PFHxDA) Perfluorohexanesulfonic acid 9.75 0.600 1.66 ng/L 0.0182 1 Page 20 of 129 SDG: 621012 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: NCO024210-EFF-20230504 Sample ID: 621012005 Report Date: May 19, 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" (PFHxS) Perfluorohexanoic acid (PFHxA) 19.6 0.728 1.82 ng/L 0.0182 1 Perfluorononanesulfonic acid U ND 0.637 1.75 ng/L 0.0182 1 (PFNS) Perfluorononanoic acid (PFNA) J 1.33 0.600 1.82 ng/L 0.0182 1 Perfluorooctadecanoic acid U ND 1.20 3.64 ng/L 0.0182 1 (PFODA) Perfluorooctanesulfonamide U ND 0.600 1.82 ng/L 0.0182 1 (PFOSA) Perfluorooctanesulfonic acid (PFOS) 19.0 0.728 1.82 ng/L 0.0182 1 Perfluorooctanoic acid (PFOA) 13.2 0.728 1.82 ng/L 0.0182 1 Perfluoropentanesulfonic acid 2.17 0.600 1.71 ng/L 0.0182 1 (PFPeS) Perfluoropentanoic acid (PFPeA) 19.3 0.600 1.82 ng/L 0.0182 1 Perfluorotetradecanoic acid (PFTA) U ND 0.728 1.82 ng/L 0.0182 1 Perfluorotridecanoic Acid (PFTrJA) U ND 0.600 1.82 ng/L 0.0182 1 Perfluoroundecanoic acid (PFUnA) U ND 0.600 1.82 ng/L 0.0182 1 4,8-Dioxa-3H-perfluorononanoic U ND 0.600 1.82 ng/L 0.0182 1 acid (DONA,ADONA) Fluorotelomer sulfonic acid 6:2 (6:2 U ND 24.5 68.2 ng/L 0.0182 5 JMB3 05/09/23 1357 2424988 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 6.00 17.5 ng/L 0.0182 5 FTS) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 30.0 85.5 ng/L 0.0182 25 JMB3 05/09/23 1758 2424988 FTS) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 05/08/23 0749 2424987 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 4 EPA 537.1 Modified Notes: 3 4 Page 21 of 129 SDG: 621012 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: NCO024210-EFF-20230504 Sample ID: 621012005 Report Date: May 19, 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 129 SDG: 621012 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: NCO024210-INF-20230504 Sample ID: 621012006 Matrix: Waste Water Collect Date: 04-MAY-23 09:52 Receive Date: 05-MAY-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) 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) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND Perfluorobutanoic acid (PFBA) J 11.4 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 Perfluorohexanesulfonic acid J 12.2 (PFHxS) Perfluorohexanoic acid (PFHxA) J 12.0 Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctanesulfonamide U ND Report Date: May 19, 2023 Project: NCDQ00123 Client ID: NCDQ001 DL RL Units PF DF Analyst Date Time Batch Method 8.25 25.0 ng/L 0.250 1 JMB3 05/08/23 1637 2424988 1 16.5 50.0 ng/L 0.250 1 16.5 50.0 ng/L 0.250 1 16.5 49.1 ng/L 0.250 1 16.5 50.0 ng/L 0.250 1 16.5 50.0 ng/L 0.250 1 16.5 50.0 ng/L 0.250 1 16.5 50.0 ng/L 0.250 1 8.25 50.0 ng/L 0.250 1 8.25 22.3 ng/L 0.250 1 10.0 25.0 ng/L 0.250 1 8.25 24.3 ng/L 0.250 1 9.75 25.0 ng/L 0.250 1 8.25 25.0 ng/L 0.250 1 8.25 23.8 ng/L 0.250 1 8.25 25.0 ng/L 0.250 1 8.25 22.8 ng/L 0.250 1 10.0 25.0 ng/L 0.250 1 8.75 24.0 ng/L 0.250 1 8.25 25.0 ng/L 0.250 1 8.25 25.0 ng/L 0.250 1 Page 23 of 129 SDG: 621012 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: NCO024210-INF-20230504 Sample ID: 621012006 Report Date: May 19, 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" (PFESA) Perfluorooctanesulfonic acid (PFOS) J 19.7 Perfluorooctanoic acid (PFOA) U ND Perfluoropentanesulfonic acid U ND (PFPeS) Perfluoropentanoic acid (PFPeA) J 12.0 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) 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- 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 Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 10.0 25.0 ng/L 0.250 1 10.0 25.0 ng/L 0.250 1 8.25 23.5 ng/L 0.250 1 8.25 25.0 ng/L 0.250 1 10.0 25.0 ng/L 0.250 1 8.25 25.0 ng/L 0.250 1 8.25 25.0 ng/L 0.250 1 8.25 25.0 ng/L 0.250 1 413 1200 ng/L 0.250 25 JMB3 05/09/23 1807 2424988 2.50 6.25 ng/L 0.250 1 RR3 05/12/23 0452 2424988 2.50 6.25 2.50 6.25 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 6.25 6.25 6.25 6.25 6.25 6.25 6.25 6.25 6.25 6.25 6.25 6.25 ng/L 0.250 1 ng/L 0.250 1 ng/L ng/L ng/L ng/L ng/L ng/L ng/L 9-Wo ng/L ng/L ng/L ng/L 0.250 1 0.250 1 0.250 1 0.250 1 0.250 1 0.250 1 0.250 1 0.250 1 0.250 1 0.250 1 0.250 1 0.250 1 2 3 Page 24 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-INF-20230504 Project: NCDQ00123 Sample ID: 621012006 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" (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 2.50 6.25 ng/L 0.250 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 2.50 6.25 ng/L 0.250 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 2.50 6.25 ng/L 0.250 1 (EVE) Perfluoropropanoic acid (PFPrA) JX 159 100 250 ng/L 0.250 1 R-EVE UX ND 16.5 50.0 ng/L 0.250 1 Perfluoro(3,5,7,9,11- UX ND 2.50 6.25 ng/L 0.250 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 2.50 6.25 ng/L 0.250 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 2.50 5.00 ng/L 0.250 1 (perfluoromethoxy)propanoic acid (PMPA) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 82.5 235 ng/L 0.250 5 JMB3 05/09/23 1406 2424988 4 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND 336 938 ng/L 0.250 5 FTS) Perfluorohexadecanoic acid U ND 82.5 250 ng/L 0.250 5 (PFHxDA) Perfluorooctadecanoic acid U ND 82.5 250 ng/L 0.250 5 (PFODA) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Liquid SR2 05/08/23 0749 2424987 The following Analytical Methods were performed: Method Description Analyst Comments 1 EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Notes: Page 25 of 129 SDG: 621012 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: NCO024210-INF-20230504 Sample ID: 621012006 Report Date: May 19, 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 129 SDG: 621012 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: NCO024210-BIOS-20230504 Sample ID: 621012007 Matrix: Sludge Collect Date: 04-MAY-23 09:42 Receive Date: 05-MAY-23 Collector: Client Moisture: 69.4% Report Date: May 19, 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 0.505 oxaundecane-l-sulfonic acid (F- 53B Minor) 2H,2H,3H,3H-Perfluorodecanoic 3.41 1.01 acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 10.4 1.01 acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic U ND 1.01 acid (3:3 FTCA)(FPrPA) 9-Chlorohexadecafluoro-3- U ND 0.505 oxanonane-l-sulfonic acid (F-53B Major) N-ethylperfluoro-l- 3.90 0.841 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- 4.99 1.01 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.505 (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND 0.505 Perfluorobutanoic acid (PFBA) 2.17 0.612 Perfluorodecanesulfonic acid U ND 0.505 (PFDS) Perfluorodecanoic acid (PFDA) J 1.72 1.13 Perfluorododecanoic acid (PFDOA) J 0.777 0.505 Perfluoroheptanesulfonic acid U ND 0.566 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND 0.505 Perfluorohexanesulfonic acid 2.04 0.505 (PFHxS) Perfluorohexanoic acid (PFHxA) U ND 0.612 Perfluorononanesulfonic acid U ND 0.505 (PFNS) Perfluorononanoic acid (PFNA) U ND 0.505 Perfluorooctanesulfonamide 1.75 0.505 (PFOSA) Perfluorooctanesulfonic acid (PFOS) 18.5 0.612 Perfluorooctanoic acid (PFDA) J 1.26 0.612 1.44 ng/g 4.67 1 JMB3 05/11/23 0939 2426643 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 1.43 ng/g 4.67 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 1.48 ng/g 4.67 1 1.36 ng/g 4.67 1 1.53 ng/g 4.67 1 1.48 ng/g 4.67 1 3.06 ng/g 4.67 1 1.53 ng/g 4.67 1 1.45 ng/g 4.67 1 1.53 ng/g 4.67 1 1.39 ng/g 4.67 1 1.53 ng/g 4.67 1 1.47 ng/g 4.67 1 1.53 ng/g 4.67 1 1.53 ng/g 4.67 1 1.53 ng/g 4.67 1 1.53 ng/g 4.67 1 Page 27 of 129 SDG: 621012 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: NCO024210-BIOS-20230504 Sample ID: 621012007 Report Date: May 19, 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" Perfluoropentanesulfonic acid U ND 0.505 (PFPeS) Perfluoropentanoic acid (PFPeA) U ND 0.505 Perfluoroundecanoic acid (PFUnA) J 0.639 0.505 4,8-Dioxa-3H-perfluorononanoic U ND 0.505 acid (DONA,ADONA) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 30.6 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND 103 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 147 FTS) 2-(N-ethylperfluoro-I- U ND 6.04 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND 5.96 octanesulfonamido)-ethanol (N- McFOSE) N-ethylperfluoro-1- U ND 6.27 octanesulfonamide (N-EtFOSA) N-methylperfluoro-1- U ND 6.65 octanesulfonamide (N-McFOSA) Perfluorotetradecanoic acid (PFTA) U ND 3.06 Perfluorotridecanoic Acid (PFTriA) U ND 2.52 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND 1.01 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND 0.505 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 1.01 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND 1.01 Nafion Byproduct 5 (PFESA BP5) XU ND 1.01 Nafion Byproduct 6 (PFESA BP6) UX ND 1.01 Hydro -EVE UX ND 1.01 Nafion Byproduct 1 (PFESA BPI) UX ND 1.01 Nafion Byproduct 2 (PFESA BP2) UX ND 1.01 1.44 ng/g 4.67 1 1.53 ng/g 4.67 1 1.53 ng/g 4.67 1 1.53 ng/g 4.67 1 71.9 ng/g 4.67 25 JMB3 05/11/23 1509 2426643 2 287 ng/g 4.67 25 367 ng/g 4.67 125 JMB3 05/11/23 1741 2426643 3 15.3 ng/g 4.67 5 JMB3 05/11/23 0948 2426643 4 15.3 ng/g 4.67 5 15.3 ng/g 4.67 5 15.3 ng/g 4.67 5 7.65 ng/g 4.67 5 7.65 ng/g 4.67 5 3.06 ng/g 4.67 1 RR3 05/16/23 0241 2426643 5 1.53 ng/g 4.67 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 3.06 ng/g 4.67 1 Page 28 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO024210-BIOS-20230504 Project: NCDQ00123 Sample ID: 621012007 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 0.505 3.06 ng/g 4.67 1 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.505 1.53 ng/g 4.67 1 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 1.01 3.06 ng/g 4.67 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 1.01 3.06 ng/g 4.67 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 1.01 3.06 ng/g 4.67 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 1.01 3.06 ng/g 4.67 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 1.01 3.06 ng/g 4.67 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 1.01 3.06 ng/g 4.67 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 1.01 3.06 ng/g 4.67 1 (EVE) R-EVE UX ND 1.01 3.06 ng/g 4.67 1 Perfluoro(3,5,7,9,11- UX ND 1.01 3.06 ng/g 4.67 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 1.01 3.06 ng/g 4.67 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 1.01 3.06 ng/g 4.67 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 05/10/23 0934 2426642 Page 29 of 129 SDG: 621012 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: NCO024210-BIOS-20230504 Sample ID: 621012007 Report Date: May 19, 2023 Project: NCDQ00123 Client ID: NCDQ001 Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method 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 4 EPA 537.1 Modified 5 EPA 537.1 Modified 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 30 of 129 SDG: 621012 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: NC0026123-SO-20230504-RA-42 Sample ID: 621012008 Matrix: Soil Collect Date: 04-MAY-23 13:00 Receive Date: 05-MAY-23 Collector: Client Moisture: 20.8% Report Date: May 19, 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" 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND 0.406 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- U ND 0.203 (1, 1,2,2,3,3,3 -heptafluoropropoxy)- propanoic acid (Gen-X) 4- UX ND 0.406 (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nation Byproduct 4 (PFESA BP4) UX ND 0.406 Nafion Byproduct 5 (PFESA BP5) UX ND 0.406 Nafion Byproduct 6 (PFESA BP6) UX ND 0.406 Hydro -EVE UX ND 0.406 Nation Byproduct 1 (PFESA BPI) UX ND 0.406 Nafion Byproduct 2 (PFESA BP2) UX ND 0.406 Nonafluoro-3,6-dioxahepanoic U ND 0.203 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND 0.203 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.406 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 0.406 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 0.406 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 0.406 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 0.406 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 0.406 (PFMOBA) Perfluoroethoxypropionic acid UX ND 0.406 (EVE) R-EVE UX ND 0.406 Perfluoro(3,5,7,9,1 I - UX ND 0.406 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 0.406 (pentafluoroethoxy)propanoic acid (PEPA) 1.23 ng/g 4.88 1 RR3 05/18/23 0856 2429817 1 0.616 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 0.616 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 1.23 ng/g 4.88 1 Page 31 of 129 SDG: 621012 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: NC0026123-SO-20230504-RA-42 Sample ID: 621012008 Report Date: May 19, 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" Perfluoro-2- UX ND 0.406 1.23 ng/g 4.88 1 (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- U ND 0.203 0.580 ng/g 4.88 1 JMB3 05/17/23 1757 2429817 oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-l- U ND 0.486 1.23 ng/g 4.88 1 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND 0.480 1.23 ng/g 4.88 1 octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic U ND 0.406 1.23 ng/g 4.88 1 acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic U ND 0.406 1.23 ng/g 4.88 1 acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic U ND 0.406 1.23 ng/g 4.88 1 acid (3:3 FTCA)(FPrPA) 9-Chlorohexadecafluoro-3- U ND 0.203 0.574 ng/g 4.88 1 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 0.492 1.16 ng/g 4.88 1 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 U ND 1.66 4.62 ng/g 4.88 1 FTS) N-ethylperfluoro-1- U ND 0.505 1.23 ng/g 4.88 1 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND 0.339 1.23 ng/g 4.88 1 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND 0.536 1.23 ng/g 4.88 1 octanesulfonamide (N-McFOSA) N-methylperfluoro-1- J 0.751 0.406 1.23 ng/g 4.88 1 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.203 0.596 ng/g 4.88 1 (PFDoS) Perfluorobutanesulfonic acid (PFBS) 0.619 0.203 0.548 ng/g 4.88 1 Perfluorobutanoic acid (PFBA) 0.775 0.246 0.616 ng/g 4.88 1 Perfluorodecanesulfonic acid U ND 0.203 0.597 ng/g 4.88 1 2 Page 32 of 129 SDG: 621012 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: NC0026123-SO-20230504-RA-42 Sample ID: 621012008 Report Date: May 19, 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" (PFDS) Perfluorodecanoic acid (PFDA) 1.68 0.455 1.23 ng/g 4.88 1 Perfluorododecanoic acid (PFDOA) 1.05 0.203 0.616 ng/g 4.88 1 Perfluoroheptanesulfonic acid U ND 0.228 0.585 ng/g 4.88 1 (PFHpS) Perfluoroheptanoic acid (PFHpA) J 0.474 0.203 0.616 ng/g 4.88 1 Perfluorohexanesulfonic acid U ND 0.203 0.560 ng/g 4.88 1 (PFHxS) Perfluorohexanoic acid (PFHxA) 1.16 0.246 0.616 ng/g 4.88 1 Perfluorononanesulfonic acid U ND 0.203 0.591 ng/g 4.88 1 (PFNS) Perfluorononanoic acid (PFNA) J 0.580 0.203 0.616 ng/g 4.88 1 Perfluorooctanesulfonamide U ND 0.203 0.616 ng/g 4.88 1 (PFOSA) Perfluorooctanesulfonic acid (PFDS) 4.18 0.246 0.616 ng/g 4.88 1 Perfluorooctanoic acid (PFDA) 1.77 0.246 0.616 ng/g 4.88 1 Perfluoropentanesulfonic acid U ND 0.203 0.579 ng/g 4.88 1 (PFPeS) Perfluoropentanoic acid (PFPeA) 2.39 0.203 0.616 ng/g 4.88 1 Perfluorotetradecanoic acid (PFTA) J 0.451 0.246 0.616 ng/g 4.88 1 Perfluorotridecanoic Acid (PFTriA) J 0.336 0.203 0.616 ng/g 4.88 1 Perfluoroundecanoic acid (PFUnA) J 0.558 0.203 0.616 ng/g 4.88 1 4,8-Dioxa-3H-perfluorononanoic U ND 0.203 0.616 ng/g 4.88 1 acid (DONA,ADONA) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 2.37 5.91 ng/g 4.88 5 JM133 05/18/23 0858 2429817 FTS) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Solid RR4 05/16/23 1213 2429816 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: 3 Page 33 of 129 SDG: 621012 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: NC0026123-SO-20230504-RA-42 Sample ID: 621012008 Report Date: May 19, 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 129 SDG: 621012 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-20230504 Sample ID: 621012009 Matrix: Sludge Collect Date: 04-MAY-23 10:56 Receive Date: 05-MAY-23 Collector: Client Moisture: 80.4% Report Date: May 19, 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 0.816 oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-l- J 2.07 1.95 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 7.09 1.93 octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 10.9 1.63 acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 31.3 1.63 acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic U ND 1.63 acid (3:3 FTCA)(FPrPA) 9-Chlorohexadecafluoro-3- U ND 0.816 oxanonane-l-sulfonic acid (F-53B Major) N-ethylperfluoro-1- U ND 2.03 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- J 4.37 1.36 octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-l- U ND 2.15 octanesulfonamide (N-McFOSA) N-methylperfluoro-l- 5.32 1.63 octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND 0.816 (PFDoS) Perfluorobutanesulfonic acid (PFBS) U ND 0.816 Perfluorobutanoic acid (PFBA) U ND 0.989 Perfluorodecanesulfonic acid 4.02 0.816 (PFDS) Perfluorodecanoic acid (PFDA) J 2.87 1.83 Perfluorododecanoic acid (PFDOA) J 1.54 0.816 Perfluoroheptanesulfonic acid U ND 0.915 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND 0.816 Perfluorohexanesulfonic acid U ND 0.816 2.33 ng/g 4.85 1 JMB3 05/17/23 1823 2429817 1 4.95 ng/g 4.85 1 4.95 ng/g 4.85 1 4.95 ng/g 4.85 1 4.95 ng/g 4.85 1 4.95 ng/g 4.85 1 2.31 ng/g 4.85 1 4.95 ng/g 4.85 1 4.95 ng/g 4.85 1 4.95 ng/g 4.85 1 4.95 ng/g 4.85 1 2.39 ng/g 4.85 1 2.20 ng/g 4.85 1 2.47 ng/g 4.85 1 2.40 ng/g 4.85 1 4.95 ng/g 4.85 1 2.47 ng/g 4.85 1 2.35 ng/g 4.85 1 2.47 ng/g 4.85 1 2.25 ng/g 4.85 1 Page 35 of 129 SDG: 621012 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-20230504 Sample ID: 621012009 Report Date: May 19, 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" (PFHxS) Perfluorohexanoic acid (PFHxA) U ND Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) U ND Perfluorooctanesulfonamide J 1.54 (PFOSA) Perfluorooctanesulfonic acid (PFOS) 20.3 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 1.05 4,8-Dioxa-3H-perfluorononanoic U ND acid (DONA,ADONA) Fluorotelomer sulfonic acid 6:2 (6:2 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- UX ND (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) UX ND Nation Byproduct 5 (PFESA BP5) UX ND Nafion Byproduct 6 (PFESA BP6) UX ND Hydro -EVE UX ND Nafion Byproduct 1 (PFESA BPI) UX ND Nation Byproduct 2 (PFESA BP2) UX ND Nonafluoro-3,6-dioxaheptanoic U ND acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic U ND acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) UX ND 0.989 2.47 ng/g 4.85 1 0.816 2.37 ng/g 4.85 1 0.816 2.47 ng/g 4.85 1 0.816 2.47 ng/g 4.85 1 0.989 2.47 ng/g 4.85 1 0.989 2.47 ng/g 4.85 1 0.816 2.33 ng/g 4.85 1 0.816 2.47 ng/g 4.85 1 0.989 2.47 ng/g 4.85 1 0.816 2.47 ng/g 4.85 1 0.816 2.47 ng/g 4.85 1 0.816 2.47 ng/g 4.85 1 33.3 92.8 ng/g 4.85 5 JMB3 05/18/23 0924 2429817 1.63 4.95 ng/g 4.85 1 JMB3 05/18/23 1917 2429817 0.816 2.47 ng/g 4.85 1 1.63 4.95 ng/g 4.85 1 1.63 4.95 ng/g 4.85 1 1.63 4.95 ng/g 4.85 1 1.63 4.95 ng/g 4.85 1 1.63 4.95 ng/g 4.85 1 1.63 4.95 ng/g 4.85 1 1.63 4.95 ng/g 4.85 1 0.816 4.95 ng/g 4.85 1 0.816 2.47 ng/g 4.85 1 1.63 4.95 ng/g 4.85 1 2 3 Page 36 of 129 SDG: 621012 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-20230504 Sample ID: 621012009 Report Date: May 19, 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" acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 1.63 4.95 ng/g 4.85 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 1.63 4.95 ng/g 4.85 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 1.63 4.95 ng/g 4.85 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 1.63 4.95 ng/g 4.85 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 1.63 4.95 ng/g 4.85 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 1.63 4.95 ng/g 4.85 1 (EVE) R-EVE UX ND 1.63 4.95 ng/g 4.85 1 Perfluoro(3,5,7,9,1 1 - UX ND 1.63 4.95 ng/g 4.85 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 1.63 4.95 ng/g 4.85 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 1.63 4.95 ng/g 4.85 1 (perfluoromethoxy)propanoic acid (PMPA) Fluorotelomer sulfonic acid 8:2 (8:2 U ND 238 594 ng/g 4.85 125 JM133 05/18/23 1717 2429817 FTS) Fluorotelomer sulfonic acid 4:2 (4:2 U ND 49.5 116 ng/g 4.85 25 JMB3 05/18/23 1249 2429817 FTS) The following Prep Methods were performed: Method Description Analyst Date Time Prep Batch EPA 537.1 Modified PFCs Extraction in Solid RR4 05/16/23 1213 2429816 The following Analytical Methods were performed: 4 61 Method Description Analyst Comments 1 EPA 537.1 Modified 2 EPA 537.1 Modified 3 EPA 537.1 Modified 4 EPA 537.1 Modified 5 EPA 537.1 Modified Page 37 of 129 SDG: 621012 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-20230504 Sample ID: 621012009 Report Date: May 19, 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 38 of 129 SDG: 621012 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-20230504 Sample ID: 621012010 Matrix: Waste Water Collect Date: 04-MAY-23 10:48 Receive Date: 05-MAY-23 Collector: Client Report Date: May 19, 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) Fluorotelomer sulfonic acid 6:2 (6:2 U ND FTS) Fluorotelomer sulfonic acid 8:2 (8:2 U ND FTS) Perfluorohexadecanoic acid U ND (PFHxDA) Perfluorooctadecanoic acid U ND (PFODA) 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) N-ethylperfluoro-1- 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) 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 165 470 ng/L 0.500 5 JMB3 05/09/23 1415 2424988 673 1880 ng/L 0.500 5 165 480 ng/L 0.500 5 165 500 ng/L 0.500 5 165 500 ng/L 0.500 5 16.5 50.0 ng/L 0.500 1 JMB3 05/08/23 1646 2424988 33.0 100 ng/L 0.500 1 33.0 100 ng/L 0.500 1 33.0 98.2 ng/L 0.500 1 33.0 100 ng/L 0.500 1 33.0 100 ng/L 0.500 1 33.0 100 ng/L 0.500 1 33.0 100 ng/L 0.500 1 16.5 100 ng/L 0.500 1 16.5 44.5 ng/L 0.500 1 20.0 50.0 ng/L 0.500 1 16.5 48.5 ng/L 0.500 1 19.5 50.0 ng/L 0.500 1 16.5 50.0 ng/L 0.500 1 0 FA Page 39 of 129 SDG: 621012 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-20230504 Sample ID: 621012010 Parameter Qualifier Result LCMSMS PFCs EPA 537Mod PFCs by LC-MS/MS "As Received" 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 U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) J 38.4 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-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) XU 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: May 19, 2023 Project: NCDQ00123 Client ID: NCDQ001 DL RL Units PF DF Analyst Date Time Batch Method 16.5 47.5 ng/L 0.500 1 16.5 50.0 ng/L 0.500 1 16.5 45.5 ng/L 0.500 1 20.0 50.0 ng/L 0.500 1 17.5 48.0 ng/L 0.500 1 16.5 50.0 ng/L 0.500 1 16.5 50.0 ng/L 0.500 1 20.0 50.0 ng/L 0.500 1 20.0 50.0 ng/L 0.500 1 16.5 47.0 ng/L 0.500 1 16.5 50.0 ng/L 0.500 1 20.0 50.0 ng/L 0.500 1 16.5 50.0 ng/L 0.500 1 16.5 50.0 ng/L 0.500 1 16.5 50.0 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 RR3 05/12/23 0507 2424988 3 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 5.00 12.5 ng/L 0.500 1 Page 40 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-INF-20230504 Project: NCDQ00123 Sample ID: 621012010 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 5.00 12.5 ng/L 0.500 1 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) acid UX ND 5.00 12.5 ng/L 0.500 1 (PF030A) Perfluoro(3,5-dioxahexanoic) acid UX ND 5.00 12.5 ng/L 0.500 1 (PF02HxA) Perfluoro-2-methoxyacetic acid UX ND 5.00 12.5 ng/L 0.500 1 (PFMOAA) Perfluoro-3-methoxypropanoic acid U ND 5.00 12.5 ng/L 0.500 1 (PFMOPrA) Perfluoro(4-methoxybutanoic) acid U ND 5.00 12.5 ng/L 0.500 1 (PFMOBA) Perfluoroethoxypropionic acid UX ND 5.00 12.5 ng/L 0.500 1 (EVE) Perfluoropropanoic acid (PFPrA) JX 409 200 500 ng/L 0.500 1 R-EVE UX ND 33.0 100 ng/L 0.500 1 Perfluoro(3,5,7,9,11- UX ND 5.00 12.5 ng/L 0.500 1 pentaoxadodecanoic) acid (PF05DA or TAFN4) 2,3,3,3-Tetrafluoro-2- UX ND 5.00 12.5 ng/L 0.500 1 (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- UX ND 5.00 10.0 ng/L 0.500 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 05/08/23 0749 2424987 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 41 of 129 SDG: 621012 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-20230504 Sample ID: 621012010 Report Date: May 19, 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 129 SDG: 621012 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-20230504 Sample ID: 621012011 Matrix: Waste Water Collect Date: 04-MAY-23 10:38 Receive Date: 05-MAY-23 Collector: Client Report Date: May 19, 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) 11-Chloroeicosafluoro-3- U ND oxaundecane-l-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- 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-1- U ND octanesulfonamide (N-McFOSA) N-methylperfluoro-1- U ND octanesulfonamidoacetic acid (N- McFOSAA) Perfluorododecanesulfonic acid U ND (PFDoS) Perfluorobutanesulfonic acid (PFBS) 8.38 Perfluorobutanoic acid (PFBA) 4.18 Perfluorodecanesulfonic acid U ND (PFDS) Perfluorodecanoic acid (PFDA) J 1.89 Perfluorododecanoic acid (PFDOA) U ND Perfluoroheptanesulfonic acid U ND (PFHpS) Perfluoroheptanoic acid (PFHpA) 4.32 Perfluorohexadecanoic acid U ND 31.4 89.4 ng/L 0.0190 25 JMB3 05/09/23 1816 2424988 0.628 1.90 ng/L 0.0190 1 JMB3 05/08/23 1655 2424988 1.26 3.81 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 1.26 3.74 ng/L 0.0190 1 5.12 14.3 ng/L 0.0190 1 1.26 3.65 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 0.628 3.81 ng/L 0.0190 1 0.628 1.69 ng/L 0.0190 1 0.761 1.90 ng/L 0.0190 1 0.628 1.85 ng/L 0.0190 1 0.742 1.90 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 0.628 1.81 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 I Page 43 of 129 SDG: 621012 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-20230504 Sample ID: 621012011 Report Date: May 19, 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 3.94 (PFHxS) Perfluorohexanoic acid (PFHxA) 15.9 Perfluorononanesulfonic acid U ND (PFNS) Perfluorononanoic acid (PFNA) J 1.00 Perfluorooctadecanoic acid U ND (PFODA) Perfluorooctanesulfonamide U ND (PFESA) Perfluorooctanesulfonic acid (PFOS) 14.3 Perfluorooctanoic acid (PFOA) 14.6 Perfluoropentanesulfonic acid J 0.800 (PFPeS) Perfluoropentanoic acid (PFPeA) 17.1 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 0.628 1.73 ng/L 0.0190 1 0.761 1.90 ng/L 0.0190 1 0.666 1.83 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 1.26 3.81 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 0.761 1.90 ng/L 0.0190 1 0.761 1.90 ng/L 0.0190 1 0.628 1.79 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 0.761 1.90 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 0.628 1.90 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 RR3 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 0.190 0.476 ng/L 0.0190 1 05/12/23 0522 2424988 3 Page 44 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report Date: May 19, 2023 Company: NCDENR Address : 1641 Mail Service Center Raleigh, North Carolina 27607 Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NCO026123-EFF-20230504 Project: NCDQ00123 Sample ID: 621012011 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 0.190 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 JX 0.232 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) X 24.0 7.61 19.0 ng/L 0.0190 1 R-EVE XU ND 1.26 3.81 ng/L 0.0190 1 Perfluoro(3,5,7,9,11- 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 (PEPA) Perfluoro-2- JX 0.205 0.190 0.381 ng/L 0.0190 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 05/08/23 0749 2424987 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 45 of 129 SDG: 621012 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-20230504 Sample ID: 621012011 Report Date: May 19, 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 129 SDG: 621012 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: May 19, 2023 Client Sample ID: NCO024210-BIOS-20230504 Project: NCD000123 Sample ID: 621012007 Client ID: NCD0001 Matrix: Sludge Collect Date: 04-MAY-23 Receive Date: 05-MAY-23 Collector: Client Moisture: 69.4% 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 47 of 129 SDG: 621012 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 Report Date: Contact: Stephanie Zorio Project: Biosolids Sampling Client Sample ID: NC0026123-SO-20230504-RA-42 Project: NCD000123 Sample ID: 621012008 Client ID: NCD0001 Matrix: Soil Collect Date: 04-MAY-23 Receive Date: 05-MAY-23 Collector: Client Moisture: 20.8% May 19, 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 48 of 129 SDG: 621012 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-20230504 Sample ID: 621012009 Matrix: Sludge Collect Date: 04-MAY-23 Receive Date: 05-MAY-23 Collector: Client Moisture: 80.4% Report Date: Project: NCD000123 Client ID: NCD0001 May 19, 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 49 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary NCDENR Renort Date: May 19, 2023 1641 Mail Service Center Raleigh, North Carolina Contact: Stephanie Zorio Workorder: 621012 Page 1 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 QC1205396672 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.1 x 20.7 ng/L 108 (60%-158%) RR3 05/12/23 03:51 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 18.0 17.4 ng/L 97 (59%-144%) JMB3 05/08/2316:02 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.1 17.8 ng/L 93 (67%-144%) RR3 05/12/23 03:51 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.1 x 18.3 ng/L 96 (58%-144%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.1 19.4 ng/L 102 (54%-128%) JM133 05/08/2316:02 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 19.1 21.3 ng/L 112 (52%-141%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.1 18.1 ng/L 95 (67%-154%) acid (DONA,ADONA) 4- 19.1 x 18.5 ng/L 97 (73%-141%) RR3 05/12/23 03:51 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 17.8 17.8 ng/L 100 (68%-135%) JM133 05/08/2316:02 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 17.9 12.6 ng/L 70 (56%-151%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.2 16.5 ng/L 91 (60%-153%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 18.4 14.5 ng/L 79 (60%-141% FTS) Hydro -EVE 19.1 x 19.0 ng/L 99 (61%-148%) RR3 05/12/23 03:51 Page 50 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 2 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 N-ethylperfluoro-l- 19.1 20.0 ng/L 105 (23%-155%) JMB3 05/08/2316:02 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 19.1 18.7 ng/L 98 (57%-139%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 19.1 19.1 ng/L 100 (20%-154%) octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 19.1 17.2 ng/L 90 (59%-145%) octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct 1 (PFESA BPI) 19.1 X 11.6 ng/L 61 (35%-138%) RR3 05/12/23 03:51 Nation Byproduct 2 (PFESA BP2) 19.1 X 17.7 ng/L 93 (63%-143%) Nation Byproduct 4 (PFESA BP4) 19.1 X 12.4 ng/L 65 (5%-158%) Nation Byproduct 5 (PFESA BP5) 19.1 X 17.9 ng/L 93 (5%-149%) Nafion Byproduct 6 (PFESA BP6) 19.1 X 15.6 ng/L 82 (59%-145%) Nonafluoro-3,6-dioxahepanoic 19.1 17.5 ng/L 91 (48%-149%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.1 19.3 ng/L 101 (52%-148%) acid (PFEESA or PES) Perfluoro(3,5,7,9,11- 19.1 x 16.9 ng/L 88 (58%-147%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.1 x 19.6 ng/L 102 (60%-151%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.1 x 19.1 ng/L 100 (62%-148% acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.1 X 17.9 ng/L 93 (60%-144% (PF02HxA) Page 51 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 3 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 Perfluoro(4-methoxybutanoic) acid 19.1 18.7 ng/L 98 (58%-142%) RR3 05/12/23 03:51 (PFMOBA) Perfluoro-2- 19.1 x 18.6 ng/L 97 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.1 x 19.8 ng/L 103 (52%-144%) (PFMOAA) Perfluoro-3-methoxypropanoic 19.1 19.7 ng/L 103 (60%-149%) acid (PFMOPrA) Perfluorobutanesulfonic acid 16.9 15.1 ng/L 89 (70%-144%) JMB3 05/08/23 16:02 (PFBS) Perfluorobutanoic acid (PFBA) 19.1 19.7 ng/L 103 (73%-151%) Perfluorohecanesulfonic acid 18.5 16.9 ng/L 92 (58%-134%) (PFDS) Perfluorodecanoic acid (PFDA) 19.1 17.7 ng/L 93 (65%-145%) Perfluorododecanesulfonic acid 18.5 15.4 ng/L 83 (57%-134%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.1 18.4 ng/L 96 (65%-137%) Perfluoroethoxypropionic acid 19.1 x 13.2 ng/L 69 (20%-160%) RR3 05/12/23 03:51 (EVE) Perfluoroheptanesulfonic acid 18.2 20.5 ng/L 113 (68%-138%) JMB3 05/08/23 16:02 (PFHpS) Perfluoroheptanoic acid (PFHpA) 19.1 17.5 ng/L 92 (71%-133% Perfluorohexadecanoic acid 19.1 21.2 ng/L 111 (69%-144% (PFHxDA) Perfluorohexanesulfonic acid 17.4 16.8 ng/L 96 (67%-145% (PFHxS) Page 52 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 4 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 Perfluorohexanoic acid (PFHxA) 19.1 19.9 ng/L 104 (70%-138%) JMB3 05/08/23 16:02 Perfluorononanesulfonic acid 18.4 18.7 ng/L 102 (64%-133%) (PFNS) Perfluorononanoic acid (PFNA) 19.1 18.7 ng/L 98 (69%-133%) Perfluorooctadecanoic acid 19.1 10.4 ng/L 54 (35%-165%) (PFODA) Perfluorooctanesulfonamide 19.1 20.7 ng/L 108 (64%-134%) (PFOSA) Perfluorooctanesulfonic acid 19.1 19.7 ng/L 103 (65%-145%) (PFOS) Perfluorooctanoic acid (PFOA) 19.1 17.1 ng/L 89 (66%-139%) Perfluoropentanesulfonic acid 18.0 15.5 ng/L 86 (67%-136%) (PFPeS) Perfluoropentanoic acid (PFPeA) 19.1 17.8 ng/L 93 (72%-143%) Perfluoropropanoic acid (PFPrA) 19.1 x 25.7 ng/L 134 (49%-153%) RR3 05/12/23 03:51 Perfluorotetradecanoic acid (PFTA) 19.1 18.0 ng/L 94 (66%-138%) JMB3 05/08/23 16:02 Perfluorotridecanoic Acid (PFTriA) 19.1 17.6 ng/L 92 (58%-140%) Perfluoroundecanoic acid (PFUnA) 19.1 20.0 ng/L 105 (63%-135%) R-EVE 19.1 X 13.7 ng/L 72 (5%-158%) RR3 05/12/23 03:51 QC1205396673 LCSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.5 X 21.6 ng/L 4 110 (0%-30%) 05/12/23 04:06 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) Page 53 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 5 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 11-Chloroeicosafluoro-3- 18.4 15.7 ng/L 10 85 (0%-27%) JMB3 05/08/2316:11 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.5 18.8 ng/L 6 96 (0%-30%) RR3 05/12/23 04:06 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.5 x 18.6 ng/L 2 95 (0%-27%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.5 21.6 ng/L 10 110 (0%-28%) JMB3 05/08/2316:11 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- 19.5 21.6 ng/L 1 ill (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.5 21.8 ng/L 18 112 (0%-26%) acid (DONA,ADONA) 4- 19.5 x 18.8 ng/L 2 96 (0%-24%) RR3 05/12/23 04:06 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 18.2 18.1 ng/L 2 99 (0%-26%) JMB3 05/08/2316:11 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.3 17.2 ng/L 31 94 (0%-32%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.6 19.6 ng/L 17 105 (0%-32%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 18.8 17.3 ng/L 17 92 (0%-36%) FTS) Hydro -EVE 19.5 x 20.4 ng/L 7 104 (0%-24%) RR3 05/12/23 04:06 N-ethylperfluoro-l- 19.5 16.9 ng/L 17 87 (0%-27%) JMB3 05/08/2316:11 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- 19.5 22.8 ng/L 19 117 (0%-27%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 19.5 22.5 ng/L 16 115 (0%-36%) octanesulfonamide (N-McFOSA) Page 54 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 6 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 N-methylperfluoro-I- 19.5 17.3 ng/L 1 89 (0%-27%) JMB3 05/08/2316:11 octanesulfonamidoacetic acid (N- McFOSAA) Nation Byproduct 1 (PFESA BPI) 19.5 x 11.8 ng/L 1 60 (0%-28%) RR3 05/12/23 04:06 Nafion Byproduct 2 (PFESA BP2) 19.5 x 18.6 ng/L 5 95 (0%-23%) Nafion Byproduct 4 (PFESA BP4) 19.5 x 9.51 ng/L 27 49 (0%-45%) Naflon Byproduct 5 (PFESA BP5) 19.5 x 14.3 ng/L 22 73 (0%-40%) Nafion Byproduct 6 (PFESA BP6) 19.5 x 17.1 ng/L 9 88 (0%-26%) Nonafluoro-3,6-dioxahepanoic 19.5 18.6 ng/L 6 95 (0%-27%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.5 19.4 ng/L 1 99 (0%-35%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 19.5 x 16.7 ng/L 1 85 (0%-40%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.5 x 21.4 ng/L 9 109 (0%-39%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.5 x 20.1 ng/L 5 103 (0%-36%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.5 x 19.1 ng/L 7 98 (0%-27%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 19.5 18.9 ng/L 1 97 (0%-29%) (PFMOBA) Perfluoro-2- 19.5 x 19.0 ng/L 2 97 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.5 x 19.6 ng/L 1 100 (0%-31%) (PFMOAA) Page 55 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 7 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 Perfluoro-3-methoxypropanoic 19.5 19.5 ng/L 1 100 (0%-25%) RR3 05/12/23 04:06 acid (PFMOPrA) Perfluorobutanesulfonic acid 17.3 17.1 ng/L 12 99 (0%-35%) JMB3 05/08/23 16:11 (PFBS) Perfluorobutanoic acid (PFBA) 19.5 20.6 ng/L 5 105 (0%-20%) Perfluorodecanesulfonic acid 18.9 17.2 ng/L 2 91 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 19.5 19.3 ng/L 8 99 (0%-31%) Perfluorododecanesulfonic acid 18.9 15.7 ng/L 2 83 (0%-32%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.5 20.5 ng/L 11 105 (0%-26%) Perfluoroethoxypropionic acid 19.5 X 13.0 ng/L 2 66 (0%-30%) RR3 05/12/23 04:06 (EVE) Perfluoroheptanesulfonic acid 18.6 20.8 ng/L 1 112 (0%-40%) JMB3 05/08/23 16:11 (PFHpS) Perfluorohcptanoic acid (PFHpA) 19.5 20.4 ng/L 15 105 (0%-23%) Perfluorohexadecanoic acid 19.5 22.2 ng/L 5 114 (0%-26%) (PFHxDA) Perfluorohexanesulfonic acid 17.8 18.1 ng/L 8 102 (0%-27%) (PFHxS) Perfluorohexanoic acid (PFHxA) 19.5 17.7 ng/L 12 91 (0%-27%) Perfluorononanesulfonic acid 18.8 19.4 ng/L 4 103 (0%-27%) (PFNS) Perfluorononanoic acid (PFNA) 19.5 19.1 ng/L 2 98 (0%-25% Page 56 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 8 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 Perfluorooctadecanoic acid 19.5 12.8 ng/L 21 65 (0%-39%) JMB3 05/08/23 16:11 (PFODA) Perfluorooctanesulfonamide 19.5 19.9 ng/L 4 102 (0%-26%) (PFOSA) Perfluorooctanesulfonic acid 19.5 19.8 ng/L 0 101 (0%-25%) (PFOS) Perfluorooctanoic acid (PFOA) 19.5 20.2 ng/L 17 103 (0%-27%) Perfluoropentanesulfonic acid 18.4 18.5 ng/L 17 101 (0%-40%) (PFPeS) Perfluoropentanoic acid (PFPeA) 19.5 19.2 ng/L 8 98 (0%-25%) Perfluoropropanoic acid (PFPrA) 19.5 X 25.6 ng/L 0 131 (0%-26%) RR3 05/12/23 04:06 Perfluorotetradecanoic acid (PFTA) 19.5 19.3 ng/L 7 99 (0%-26%) JMB3 05/08/23 16:11 Perfluorotridecanoic Acid (PFTriA) 19.5 18.9 ng/L 7 97 (0%-31%) Perfluoroundccanoic acid (PFUnA) 19.5 20.5 ng/L 2 105 (0%-30%) R-EVE 19.5 X 11.9 ng/L 14 61 (0%-26%) RR3 05/12/23 04:06 QC1205396671 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND ng/L 05/12/23 03:36 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/L JMB3 05/08/2315:53 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/L RR3 05/12/23 03:36 (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 57 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 9 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 2-(N-ethylperfluoro-l- U ND ng/L JMB3 05/08/2315:53 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 05/12/23 03:36 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- U ND ng/L JMB3 05/08/2315:53 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 05/12/23 03:36 N-ethylperfluoro-I- U ND ng/L JMB3 05/08/2315:53 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 I (PFESA BPI) Ux ND ng/L RR3 05/12/23 03:36 Naflon Byproduct 2 (PFESA BP2) Ux ND ng/L Page 58 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 10 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 Nation Byproduct 4 (PFESA BP4) Ux ND ng/L RR3 05/12/23 03:36 Nation Byproduct 5 (PFESA BP5) Ux ND ng/L Nation Byproduct 6 (PFESA BP6) xU 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 05/08/23 15:53 (PFBS) Perfluorobutanoic acid (PFBA) U ND ng/L Page 59 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 11 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 Perfluorodecanesulfonic acid U ND ng/L JMB3 05/08/23 15:53 (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 05/12/23 03:36 (EVE) Perfluoroheptanesulfonic acid U ND ng/L JMB3 05/08/23 15:53 (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 60 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 12 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2424988 Perfluorooctanoic acid (PFOA) U ND ng/L JMB3 05/08/23 15:53 Perfluoropentanesulfonic acid U ND ng/L (PFPeS) Perfluoropentanoic acid (PFPeA) U ND ng/L Perfluoropropanoic acid (PFPrA) UX ND ng/L RR3 05/12/23 03:36 Perfluorotetradecanoic acid (PFTA) U ND ng/L JMB3 05/08/23 15:53 Perfluorotridecanoic Acid (PFTriA) U ND ng/L Perfluoroundecanoic acid (PFUnA) U ND ng/L R-EVE UX ND ng/L RR3 05/12/23 03:36 Batch 2426059 QC1205399358 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 18.4 X 14.7 ng/L 80 (60%-158%) RR3 05/18/23 05:09 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 17.3 14.8 ng/L 86 (59%-144%) JMB3 05/10/23 22:52 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 18.4 16.6 ng/L 90 (67%-144%) RR3 05/18/23 05:09 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 18.4 X 18.3 ng/L 100 (58%-144%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 18.4 20.3 ng/L 110 (54%-128%) JMB3 05/10/23 22:52 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 18.4 17.0 ng/L 93 (52%-141%) octanesulfonamido)-ethanol (N- McFOSE) Page 61 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 13 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 4,8-Dioxa-3H-perfluorononanoic 18.4 16.8 ng/L 91 (67%-154%) JMB3 05/10/23 22:52 acid (DONA,ADONA) 4- 18.4 x 17.3 ng/L 94 (73%-141%) RR3 05/18/23 05:09 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 17.1 15.6 ng/L 91 (68%-135%) JMB3 05/10/23 22:52 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 17.2 17.3 ng/L 101 (56%-151%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 17.4 17.9 ng/L 103 (60%-153%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 17.6 14.2 ng/L 81 (60%-141%) FTS) Hydro -EVE 18.4 x 22.8 ng/L 124 (61%-148%) RR3 05/18/23 05:09 N-ethylperfluoro-I- 18.4 18.6 ng/L 101 (23%-155%) JMB3 05/10/23 22:52 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 18.4 15.8 ng/L 86 (57%-139%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 18.4 15.6 ng/L 85 (20%-154%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 18.4 14.2 ng/L 77 (59%-145%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 18.4 x 14.2 ng/L 78 (35%-138%) RR3 05/18/23 05:09 Nafion Byproduct 2 (PFESA BP2) 18.4 x 17.8 ng/L 97 (63%-143% Nation Byproduct 4 (PFESA BP4) 18.4 x 13.4 ng/L 73 (5%-158% Nafion Byproduct 5 (PFESA BP5) 18.4 x 17.4 ng/L 94 (5%-149% Page 62 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 14 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Nation Byproduct 6 (PFECA BP6) 18.4 X 17.5 ng/L 95 (59%-145%) RR3 05/18/23 05:09 Nonafluoro-316-dioxaheptanoic 18.4 18.0 ng/L 98 (48%-149%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 18.4 15.9 ng/L 87 (52%-148%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - 18.4 X 16.3 ng/L 89 (58%-147%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 18.4 X 18.8 ng/L 102 (60%-151%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 18.4 X 17.0 ng/L 93 (62%-148%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 18.4 X 17.2 ng/L 94 (60%-144%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 18.4 17.9 ng/L 98 (58%-142%) (PFMOBA) Perfluoro-2- 18.4 X 17.1 ng/L 93 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 18.4 R 17.5 ng/L 95 (52%-144%) (PFMOAA) Perfluoro-3-methoxypropanoic 18.4 18.2 ng/L 99 (60%-149%) acid (PFMOPrA) Perfluorobutanesulfonic acid 16.3 14.5 ng/L 89 (70%-144%) JMB3 05/10/23 22:52 (PFBS) Perfluorobutanoic acid (PFBA) 18.4 19.2 ng/L 104 (73%-151% Perfluorodecanesulfonic acid 17.7 16.1 ng/L 91 (58%-134% (PFDS) Perfluorodecanoic acid (PFDA) 18.4 18.7 ng/L 102 (65%-145% Page 63 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 15 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Perfluorododecanesulfonic acid 17.8 14.8 ng/L 83 (57%-134%) JMB3 05/10/23 22:52 (PFDoS) Perfluorododecanoic acid (PFDOA) 18.4 18.7 ng/L 102 (65%-137%) Perfluoroethoxypropionic acid 18.4 X 15.8 ng/L 86 (20%-160%) RR3 05/18/23 05:09 (EVE) Perfluoroheptanesulfonic acid 17.4 14.4 ng/L 83 (68%-138%) JMB3 05/10/23 22:52 (PFHpS) Perfluoroheptanoic acid (PFHpA) 18.4 20.1 ng/L 109 (71%-133%) Perfluorohexadecanoic acid 18.4 17.2 ng/L 94 (69%-144%) (PFHxDA) Perfluorohexanesulfonic acid 16.7 14.9 ng/L 89 (67%-145%) (PFHxS) Perfluorohexanoic acid (PFHxA) 18.4 16.6 ng/L 90 (70%-138%) Perfluorononanesulfonic acid 17.6 15.3 ng/L 87 (64%-133%) (PFNS) Perfluorononanoic acid (PFNA) 18.4 17.2 ng/L 94 (69%-133%) Perfluorooctadecanoic acid 18.4 13.4 ng/L 73 (35%-165%) (PFODA) Perfluorooctanesulfonamide 18.4 15.8 ng/L 86 (64%-134%) (PFOSA) Perfluorooctanesulfonic acid 18.4 16.8 ng/L 91 (65%-145% (PFOS) Perfluorooctanoic acid (PFOA) 18.4 16.1 ng/L 87 (66%-139% Perfluoropentanesulfonic acid 17.3 14.1 ng/L 82 (67%-136% (PFPeS) Page 64 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 16 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Perfluoropentanoic acid (PFPeA) 18.4 17.1 ng/L 93 (72%-143%) JMB3 05/10/23 22:52 Perfluoropropanoic acid (PFPrA) 18.4 BX 22.4 ng/L 122 (49%-153%) RR3 05/18/23 05:09 Perfluorotetradecanoic acid (PFTA) 18.4 15.6 ng/L 85 (66%-138%) JMB3 05/10/23 22:52 Perfluorotridecanoic Acid (PFTriA) 18.4 14.7 ng/L 80 (58%-140%) Perfluoroundecanoic acid (PFUnA) 18.4 16.9 ng/L 92 (63%-135%) R-EVE 18.4 X 14.0 ng/L 76 (5%-158%) RR3 05/18/23 05:09 QC1205399359 LCSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 18.0 X 17.8 ng/L 19 98 (0%-30%) 05/18/23 05:24 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 17.0 16.5 ng/L 11 97 (0%-27%) JMB3 05/10/23 23:01 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 18.0 19.4 ng/L 15 107 (0%-30%) RR3 05/18/23 05:24 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 18.0 X 21.5 ng/L 16 119 (0%-27%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 18.0 18.6 ng/L 9 103 (0%-28%) JMB3 05/10/23 23:01 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 18.0 19.0 ng/L 11 105 (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 18.0 18.5 ng/L 10 103 (0%-26%) acid (DONA,ADONA) 4- 18.0 X 18.8 ng/L 8 104 (0%-24%) RR3 05/18/23 05:24 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 16.8 18.3 ng/L 16 109 (0%-26%) JMB3 05/10/23 23:01 oxanonane-l-sulfonic acid (F-53B Major) Page 65 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 17 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Fluorotelomer sulfonic acid 4:2 (4:2 16.9 15.3 ng/L 12 91 (0%-32%) JMB3 05/10/23 23:01 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 17.1 1 11.9 ng/L 41 * 69 (0%-32%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 17.3 15.9 ng/L 11 92 (0%-36%) FTS) Hydro -EVE 18.0 X 25.3 ng/L 10 140 (0%-24%) RR3 05/18/23 05:24 N-ethylperfluoro-1- 18.0 17.7 ng/L 5 98 (0%-27%) JMB3 05/10/23 23:01 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- 18.0 16.7 ng/L 5 93 (0%-27%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 18.0 16.7 ng/L 7 93 (0%-36%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 18.0 17.7 ng/L 22 98 (0%-27%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 18.0 X 15.6 ng/L 9 87 (0%-28%) RR3 05/18/23 05:24 Nation Byproduct 2 (PFESA BP2) 18.0 R 20.0 ng/L 12 111 (0%-23%) Nafion Byproduct 4 (PFESA BP4) 18.0 X 13.3 ng/L 1 74 (0%-45%) Nafion Byproduct 5 (PFESA BP5) 18.0 X 16.6 ng/L 4 92 (0%-40%) Nafion Byproduct 6 (PFESA BP6) 18.0 X 20.7 ng/L 17 115 (0%-26%) Nonafluoro-316-dioxaheptanoic 18.0 20.8 ng/L 14 115 (0%-27%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 18.0 20.5 ng/L 25 113 (0%-35% acid (PFEESA or PES) Page 66 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 18 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Perfluoro(3,5,7,9,11- 18.0 X 18.6 ng/L 13 103 (0%-40%) RR3 05/18/23 05:24 pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 18.0 X 21.7 ng/L 14 120 (0%-39%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 18.0 X 20.2 ng/L 17 112 (0%-36%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 18.0 X 20.0 ng/L 15 ill (0%-27%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 18.0 19.7 ng/L 9 109 (0%-29%) (PFMOBA) Perfluoro-2- 18.0 X 20.4 ng/L 18 113 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 18.0 X 20.7 ng/L 17 115 (0%-31%) (PFMOAA) Perfluoro-3-methoxypropanoic 18.0 21.6 ng/L 17 120 (0%-25%) acid (PFMOPrA) Perfluorobutanesulfonic acid 16.0 15.0 ng/L 3 94 (0%-35%) JMB3 05/10/23 23:01 (PFBS) Perfluorobutanoic acid (PFBA) 18.0 18.3 ng/L 4 102 (0%-20%) Perfluorodecanesulfonic acid 17.4 17.4 ng/L 8 100 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 18.0 17.0 ng/L 9 94 (0%-31%) Perfluorododecanesulfonic acid 17.5 15.6 ng/L 6 90 (0%-32%) (PFDoS) Perfluorododecanoic acid (PFDOA) 18.0 17.4 ng/L 7 96 (0%-26%) Perfluoroethoxypropionic acid 18.0 X 16.9 ng/L 7 94 (0%-30%) RR3 05/18/23 05:24 (EVE) Page 67 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 19 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Perfluoroheptanesulfonic acid 17.1 17.7 ng/L 20 103 (0%-40%) JMB3 05/10/23 23:01 (PFHpS) Perfluoroheptanoic acid (PFHpA) 18.0 17.0 ng/L 17 94 (0%-23%) Perfluorohexadecanoic acid 18.0 19.2 ng/L 11 106 (0%-26%) (PFHxDA) Perfluorohexanesulfonic acid 16.4 16.3 ng/L 9 99 (0%-27%) (PFHxS) Perfluorohexanoic acid (PFHxA) 18.0 17.0 ng/L 3 94 (0%-27%) Perfluorononanesulfonic acid 17.3 17.3 ng/L 12 100 (0%-27%) (PFNS) Perfluorononanoic acid (PFNA) 18.0 18.3 ng/L 6 102 (0%-25%) Perfluorooctadecanoic acid 18.0 9.17 ng/L 38 51 (0%-39%) (PFODA) Perfluorooctanesulfonamide 18.0 17.5 ng/L 10 97 (0%-26%) (PFOSA) Perfluorooctanesulfonic acid 18.0 19.2 ng/L 13 107 (0%-25%) (PFOS) Perfluorooctanoic acid (PFOA) 18.0 17.6 ng/L 9 98 (0%-27%) Perfluoropentanesulfonic acid 16.9 15.9 ng/L 12 94 (0%-40%) (PFPeS) Perfluoropentanoic acid (PFPeA) 18.0 17.3 ng/L 1 96 (0%-25%) Perfluoropropanoic acid (PFPrA) 18.0 BX 27.4 ng/L 20 152 (0%-26%) RR3 05/18/23 05:24 Perfluorotetradecanoic acid (PFTA) 18.0 17.7 ng/L 13 98 (0%-26%) JMB3 05/10/23 23:01 Page 68 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 20 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Perfluorotridecanoic Acid (PFTriA) 18.0 16.8 ng/L 14 93 (0%-31%) JMB3 05/10/23 23:01 Perfluoroundecanoic acid (PFUnA) 18.0 17.8 ng/L 5 99 (0%-30%) R-EVE 18.0 X 15.9 ng/L 12 88 (0%-26%) RR3 05/18/23 05:24 QC1205399357 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND ng/L 05/18/23 04:54 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/L JMB3 05/10/23 22:34 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/L RR3 05/18/23 04:54 (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 05/10/23 22:34 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- U ND ng/L octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic U ND ng/L acid (DONA,ADONA) 4- U% ND ng/L RR3 05/18/23 04:54 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- U ND ng/L JMB3 05/10/23 22:34 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) Page 69 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 21 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Hydro -EVE Ux ND ng/L RR3 05/18/23 04:54 N-ethylperfluoro-l- U ND ng/L JMB3 05/10/23 22:34 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- U ND ng/L octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- U ND ng/L octanesulfonamide (N-McFOSA) N-methylperfluoro-1- U ND ng/L octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct 1 (PFESA BPI) Ux ND ng/L RR3 05/18/23 04:54 Nafon Byproduct 2 (PFESA BP2) Ux ND ng/L Nafon Byproduct 4 (PFESA BP4) Ux ND ng/L Naflon Byproduct 5 (PFESA BP5) Ux ND ng/L Nation Byproduct 6 (PFESA BP6) Ux ND ng/L Nonafluoro-3,6-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 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) Page 70 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 22 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Perfluoro(3,5-dioxahexanoic) acid Ux ND ng/L RR3 05/18/23 04:54 (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 05/10/23 22:34 (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 05/18/23 04:54 (EVE) Perfluoroheptanesulfonic acid U ND ng/L JMB3 05/10/23 22:34 (PFHpS) Perfluoroheptanoic acid (PFHpA) U ND ng/L Perfluorohexadecanoic acid U ND ng/L (PFHxDA) Page 71 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 23 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426059 Perfluorohexanesulfonic acid U ND ng/L JMB3 05/10/23 22:34 (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) 7x 7.61 ng/L RR3 05/18/23 04:54 Perfluorotetradecanoic acid (PFTA) U ND ng/L JMB3 05/10/23 22:34 Perfluorotridecanoic Acid (PFTriA) U ND ng/L Perfluoroundecanoic acid (PFUnA) U ND ng/L R-EVE UX ND ng/L RR3 05/18/23 04:54 Page 72 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 24 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 QC1205400360 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 4.74 X 4.83 ng/g 102 (50%-150%) RR3 05/16/23 00:55 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 4.46 4.66 ng/g 104 (69%-143%) JMB3 05/10/2319:09 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 4.74 4.48 ng/g 95 (72%-137%) (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 4.74 4.70 ng/g 99 (72%-137%) RR3 05/16/23 00:55 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 4.74 X 4.93 ng/g 104 (59%-145%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 4.74 5.40 ng/g 114 (61%-131%) JMB3 05/10/2319:09 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- 4.74 4.34 ng/g 92 (66%-140%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 4.74 5.05 ng/g 107 (49%-150%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 4.74 4.38 ng/g 92 (54%-145%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 4.74 4.39 ng/g 93 (59%-131%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 4.74 4.78 ng/g 101 (70%-135%) acid (DONA,ADONA) 4- 4.74 X 4.78 ng/g 101 (60%-141%) RR3 05/16/23 00:55 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 4.42 4.51 ng/g 102 (66%-140%) JMB3 05/10/2319:09 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 4.43 4.80 ng/g 108 (63%-144%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 4.50 3.59 ng/g 80 (62%-148%) FTS) Page 73 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 25 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Fluorotelomer sulfonic acid 8:2 (8:2 4.55 4.53 ng/g 100 (65%-144%) JMB3 05/10/23 19:09 FTS) Hydro -EVE 4.74 x 5.32 ng/g 112 (50%-150%) RR3 05/16/23 00:55 N-ethylperfluoro-l- 4.74 4.74 ng/g 100 (73%-140%) JMB3 05/10/2319:09 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 4.74 3.95 ng/g 83 (66%-141%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 4.74 4.08 ng/g 86 (70%-136%) octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 4.74 4.11 ng/g 87 (68%-141%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 4.74 x 4.64 ng/g 98 (63%-138%) RR3 05/16/23 00:55 Nafion Byproduct 2 (PFESA BP2) 4.74 x 4.92 ng/g 104 (64%-142%) Nafion Byproduct 4 (PFESA BP4) 4.74 x 5.32 ng/g 112 (50%-150%) Nafion Byproduct 5 (PFESA BP5) 4.74 x 5.89 ng/g 124 (50%-150%) Nafion Byproduct 6 (PFESA BP6) 4.74 x 4.60 ng/g 97 (50%-150%) Nonafluoro-3,6-dioxaheptanoic 4.74 4.84 ng/g 102 (50%-150%) acid (NFDHA or PFECA B) Nonafluoro-316-dioxaheptanoic 4.74 3.44 ng/g 72 (50%-150%) JMB3 05/10/2319:09 acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 4.74 5.00 ng/g 105 (50%-150%) RR3 05/16/23 00:55 acid (PFEESA or PES) Perfluoro(2-ethoxyethane)sulfonic 4.74 4.10 ng/g 87 (50%-150%) JMB3 05/10/2319:09 acid (PFEESA or PES) Page 74 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 26 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluoro(3,5,7,9,11- 4.74 X 4.39 ng/g 93 (58%-151%) RR3 05/16/23 00:55 pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 4.74 X 4.87 ng/g 103 (59%-158%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 4.74 X 4.73 ng/g 100 (58%-156%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 4.74 X 4.64 ng/g 98 (67%-142%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 4.74 4.74 ng/g 100 (64%-142%) JMB3 05/10/23 19:09 (PFMOBA) Perfluoro(4-methoxybutanoic) acid 4.74 4.71 ng/g 99 (64%-142%) RR3 05/16/23 00:55 (PFMOBA) Perfluoro-2- 4.74 X 5.08 ng/g 107 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 4.74 X 4.92 ng/g 104 (64%-146%) (PFMOAA) Perfluoro-3-methoxypropanoic 4.74 4.75 ng/g 100 (60%-159%) acid (PFMOPrA) Perfluoro-3-methoxypropanoic 4.74 5.10 ng/g 108 (60%-159%) JMB3 05/10/2319:09 acid (PFMOPrA) Perfluorobutanesulfonic acid 4.19 3.71 ng/g 89 (71%-136%) (PFBS) Perfluorobutanoic acid (PFBA) 4.74 4.94 ng/g 104 (66%-141%) Perfluorodecanesulfonic acid 4.57 4.77 ng/g 104 (70%-139%) (PFDS) Perfluorodecanoic acid (PFDA) 4.74 4.93 ng/g 104 (66%-139% Perfluorododecanesulfonic acid 4.59 4.61 ng/g 100 (54%-148% (PFDoS) Page 75 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 27 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluorododecanoic acid (PFDOA) 4.74 4.68 ng/g 99 (70%-139%) JMB3 05/10/23 19:09 Perfluoroethoxypropionic acid 4.74 x 4.30 ng/g 91 (50%-150%) RR3 05/16/23 00:55 (EVE) Perfluoroheptanesulfonic acid 4.50 4.38 ng/g 97 (72%-138%) JMB3 05/10/23 19:09 (PFHpS) Perfluoroheptanoic acid (PFHpA) 4.74 4.62 ng/g 97 (72%-132%) Perfluorohexanesulfonic acid 4.32 4.10 ng/g 95 (68%-139%) (PFHxS) Perfluorohexanoic acid (PFHxA) 4.74 4.33 ng/g 91 (70%-135%) Perfluorononanesulfonic acid 4.55 4.57 ng/g 100 (60%-138%) (PFNS) Perfluorononanoic acid (PFNA) 4.74 4.41 ng/g 93 (70%-136%) Perfluorooctanesulfonamide 4.74 4.58 ng/g 97 (76%-138%) (PFOSA) Perfluorooctanesulfonic acid 4.74 4.57 ng/g 96 (73%-135%) (PFOS) Perfluorooctanoic acid (PFOA) 4.74 4.47 ng/g 94 (72%-135%) Perfluoropentanesulfonic acid 4.45 3.62 ng/g 81 (66%-138%) (PFPeS) Perfluoropentanoic acid (PFPeA) 4.74 4.65 ng/g 98 (72%-155%) Perfluorotetradecanoic acid (PFTA) 4.74 4.43 ng/g 93 (72%-139% Perfluorotridecanoic Acid (PFTriA) 4.74 4.38 ng/g 92 (60%-149% Page 76 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 28 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluoroundecanoic acid (PFUnA) 4.74 4.72 ng/g 100 (70%-135%) JMB3 05/10/23 19:09 R-EVE 4.74 x 5.06 ng/g 107 (50%-150%) RR3 05/16/23 00:55 QC1205400359 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- Ux ND ng/g 05/16/23 00:40 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/g JMB3 05/10/2319:00 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/g RR3 05/16/23 00:40 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- U ND ng/g JMB3 05/10/2319:00 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- Ux ND ng/g RR3 05/16/23 00:40 (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- U ND ng/g JMB3 05/10/2319:00 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) 4,8-Dioxa-3H-perfluorononanoic U ND ng/g acid (DONA,ADONA) 4- Ux ND ng/g RR3 05/16/23 00:40 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- U ND ng/g JMB3 05/10/2319:00 oxanonane-l-sulfonic acid (F-53B Major) Page 77 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 29 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Fluorotelomer sulfonic acid 4:2 (4:2 U ND ng/g JMB3 05/10/23 19:00 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 05/16/23 00:40 N-ethylperfluoro-1- U ND ng/g JMB3 05/10/2319:00 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- 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 05/16/23 00:40 Nation Byproduct 2 (PFESA BP2) Ux ND ng/g Nafion Byproduct 4 (PFESA BP4) Ux ND ng/g Nafion Byproduct 5 (PFESA BP5) Ux ND ng/g Nafion Byproduct 6 (PFESA BP6) Ux ND ng/g Nonafluoro-316-dioxaheptanoic U ND ng/g JMB3 05/10/2319:00 acid (NFDHA or PFECA B) Nonafluoro-316-dioxaheptanoic U ND ng/g RR3 05/16/23 00:40 acid (NFDHA or PFECA B) Page 78 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Workorder: 621012 QC Summary Page 30 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluoro(2-ethoxyethane)sulfonic U ND ng/g JMB3 05/10/23 19:00 acid (PFEESA or PES) Perfluoro(2-ethoxyethane)sulfonic U ND ng/g RR3 05/16/23 00:40 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 JMB3 05/10/23 19:00 (PFMOBA) Perfluoro(4-methoxybutanoic) acid U ND ng/g RR3 05/16/23 00:40 (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 JMB3 05/10/23 19:00 acid (PFMOPrA) Perfluoro-3-methoxypropanoic U ND ng/g RR3 05/16/23 00:40 acid (PFMOPrA) Perfluorobutanesulfonic acid U ND ng/g JMB3 05/10/23 19:00 (PFBS) Perfluorobutanoic acid (PFBA) U ND ng/g Perfluorodecanesulfonic acid U ND ng/g (PFDS) Page 79 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 31 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluorodecanoic acid (PFDA) U ND ng/g JMB3 05/10/23 19:00 Perfluorododecanesulfonic acid U ND ng/g (PFDoS) Perfluorododecanoic acid (PFDOA) U ND ng/g Perfluoroethoxypropionic acid UX ND ng/g RR3 05/16/23 00:40 (EVE) Perfluoroheptanesulfonic acid U ND ng/g JMB3 05/10/23 19:00 (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 Perfluoropentanesulfonic acid U ND ng/g (PFPeS) Perfluoropentanoic acid (PFPeA) U ND ng/g Page 80 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 32 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluorotetradecanoic acid (PFTA) U ND ng/g JMB3 05/10/23 19:00 Perfluorotridecanoic Acid (PFTriA) U ND ng/g Perfluoroundecanoic acid (PFUnA) U ND ng/g R-EVE UX ND ng/g RR3 05/16/23 00:40 QC1205400361 620804001 MS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 16.4 UX ND X 15.6 ng/g 95 (42%-158%) 05/16/23 02:11 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 15.4 U ND 14.3 ng/g 93 (43%-141%) JMB3 05/10/23 20:03 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 16.4 U ND 16.9 ng/g 103 (61%-150%) RR3 05/16/23 02:11 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 16.4 UX ND X 15.7 ng/g 96 (43%-154%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 16.4 U ND 17.3 ng/g 106 (49%-153%) JMB3 05/10/23 20:03 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 16.4 U ND 15.4 ng/g 94 (54%-154%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 16.4 U ND 17.6 ng/g 107 (30%-157%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 16.4 U ND 17.5 ng/g 107 (31%-158%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 16.4 U ND 16.2 ng/g 99 (32%-153%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 16.4 U ND 15.9 ng/g 97 (63%-143%) acid (DONA,ADONA) 4- 16.4 UX ND X 15.4 ng/g 94 (54%-161%) RR3 05/16/23 02:11 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) Page 81 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 33 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 9-Chlorohexadecafluoro-3- 15.2 U ND 15.0 ng/g 99 (62%-146%) JMB3 05/10/23 20:03 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 15.3 U ND 15.0 ng/g 98 (62%-148%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 15.5 U ND 14.2 ng/g 84 (50%-153%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 15.7 U ND 13.4 ng/g 85 (53%-158%) FTS) Hydro -EVE 16.4 UX ND X 17.7 ng/g 108 (51%-148%) RR3 05/16/23 02:11 N-ethylperfluoro-1- 16.4 U ND 15.7 ng/g 96 (48%-148%) JMB3 05/10/23 20:03 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-I- 16.4 J 1.01 17.6 ng/g 101 (65%-152%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 16.4 U ND 16.2 ng/g 99 (55%-151%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 16.4 J 1.38 17.1 ng/g 96 (59%-152%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 16.4 UX ND X 14.2 ng/g 87 (60%-147%) RR3 05/16/23 02:11 Nafion Byproduct 2 (PFESA BP2) 16.4 UX ND X 16.2 ng/g 99 (65%-150% Nafion Byproduct 4 (PFESA BP4) 16.4 UX ND X 49.6 ng/g 303 * (40%-160% Nafion Byproduct 5 (PFESA BP5) 16.4 UX ND X 37.0 ng/g 226 * (40%-160% Nation Byproduct 6 (PFESA BP6) 16.4 UX ND X 17.2 ng/g 105 (53%-153% Nonafluoro-316-dioxaheptanoic 16.4 U ND 16.7 ng/g 102 (43%-163% acid (NFDHA or PFECA B) Page 82 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 34 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluoro(2-ethoxyethane)sulfonic 16.4 U ND 16.9 ng/g 103 (48%-148%) RR3 05/16/23 02:11 acid (PFEESA or PES) Perfluoro(3,5,7,9,11- 16.4 UX ND X 16.2 ng/g 99 (42%-167%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 16.4 UX ND X 17.4 ng/g 106 (49%-162%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 16.4 UX ND X 16.5 ng/g 101 (44%-167%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 16.4 UX ND X 18.1 ng/g 111 (57%-153%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 16.4 U ND 15.8 ng/g 97 (47%-166%) (PFMOBA) Perfluoro-2- 16.4 UX ND X 16.9 ng/g 103 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 16.4 UX ND X 14.4 ng/g 88 (49%-169%) (PFMOAA) Perfluoro-3-methoxypropanoic 16.4 U ND 16.2 ng/g 99 (40%-162%) acid (PFMOPrA) Perfluorobutanesulfonic acid 14.5 U ND 13.8 ng/g 95 (67%-146%) JMB3 05/10/23 20:03 (PFBS) Perfluorobutanoic acid (PFBA) 16.4 U ND 22.0 ng/g 135 (56%-156%) Perfluorodecanesulfonic acid 15.8 U ND 16.0 ng/g 101 (61%-150%) (PFDS) Perfluorodecanoic acid (PFDA) 16.4 J 2.15 16.6 ng/g 89 (59%-153%) Perfluorododecanesulfonic acid 15.8 U ND 14.6 ng/g 92 (39%-149%) (PFDoS) Perfluorododecanoic acid (PFDOA) 16.4 J 0.833 16.7 ng/g 97 (59%-147% Page 83 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 35 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluoroethoxypropionic acid 16.4 UX ND X 15.8 ng/g 96 (49%-151%) RR3 05/16/23 02:11 (EVE) Perfluoroheptanesulfonic acid 15.5 U ND 15.0 ng/g 96 (50%-156%) JMB3 05/10/23 20:03 (PFHpS) Perfluoroheptanoic acid (PFHpA) 16.4 U ND 16.8 ng/g 102 (61%-149%) Perfluorohexanesulfonic acid 14.9 U ND 15.8 ng/g 106 (64%-150%) (PFHxS) Perfluorohexanoic acid (PFHxA) 16.4 J 0.929 17.3 ng/g 100 (61%-151%) Perfluorononanesulfonic acid 15.7 U ND 15.2 ng/g 97 (47%-147%) (PFNS) Perfluorononanoic acid (PFNA) 16.4 J 0.965 17.9 ng/g 104 (58%-152%) Perfluorooctanesulfonamide 16.4 U ND 16.5 ng/g 101 (68%-153%) (PFOSA) Perfluorooctanesulfonic acid 16.4 4.19 19.6 ng/g 94 (53%-157%) (PFOS) Perfluorooctanoic acid (PFOA) 16.4 J 0.769 17.3 ng/g 101 (53%-155%) Perfluoropentanesulfonic acid 15.4 U ND 15.5 ng/g 101 (58%-150%) (PFPeS) Perfluoropentanoic acid (PFPeA) 16.4 U ND 15.8 ng/g 96 (66%-150% PerFluorotetradecanoic acid (PFTA) 16.4 J 0.683 17.4 ng/g 102 (60%-157% Perfluorotridecanoic Acid (PFTriA) 16.4 J 0.576 17.0 ng/g 101 (35%-157% Perfluoroundecanoic acid (PFUnA) 16.4 J 0.905 16.8 ng/g 97 (58%-154% Page 84 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 36 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 R-EVE 16.4 UX ND X 38.7 ng/g 237* (40%-160%) RR3 05/16/23 02:11 QC1205400362 620804001 MSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 15.8 UX ND X 17.0 ng/g 8 107 (0%-30%) 05/16/23 02:26 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 14.9 U ND 13.5 ng/g 6 90 (0%-30%) JMB3 05/10/23 20:12 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 15.8 U ND 16.8 ng/g 1 106 (0%-30%) RR3 05/16/23 02:26 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 15.8 UX ND X 14.8 ng/g 6 93 (0%-30%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 15.8 U ND 15.4 ng/g 12 97 (0%-30%) JM133 05/10/23 20:12 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 15.8 U ND 15.1 ng/g 2 95 (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 15.8 U ND 17.2 ng/g 2 109 (0%-30%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 15.8 U ND 16.5 ng/g 6 104 (0%-30%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 15.8 U ND 15.8 ng/g 2 100 (0%-30%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 15.8 U ND 16.6 ng/g 4 105 (0%-30%) acid (DONA,ADONA) 4- 15.8 UX ND X 16.2 ng/g 5 102 (0%-30%) RR3 05/16/23 02:26 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 14.8 U ND 14.5 ng/g 4 98 (0%-30%) JMB3 05/10/23 20:12 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 14.8 U ND 13.5 ng/g 10 91 (0%-30%) FTS) Page 85 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 37 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Fluorotelomer sulfonic acid 6:2 (6:2 15.1 U ND 16.9 ng/g 17 105 (0%-30%) JMB3 05/10/23 20:12 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 15.2 U ND 11.4 ng/g 16 75 (0%-30%) FTS) Hydro -EVE 15.8 UX ND X 19.2 ng/g 8 121 (0%-30%) RR3 05/16/23 02:26 N-ethylperfluoro-l- 15.8 U ND 17.1 ng/g 8 108 (0%-30%) JMB3 05/10/23 20:12 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-I- 15.8 J 1.01 17.7 ng/g 1 105 (0%-30%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 15.8 U ND 15.7 ng/g 4 99 (0%-30%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 15.8 J 1.38 14.6 ng/g 16 84 (0%-30%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 15.8 UX ND X 15.4 ng/g 9 97 (0%-30%) RR3 05/16/23 02:26 Nafion Byproduct 2 (PFESA BP2) 15.8 Ux ND X 15.7 ng/g 3 99 (0%-30%) Nation Byproduct 4 (PFESA BP4) 15.8 UX ND X 39.3 ng/g 23 248 * (0%-30%) Nafion Byproduct 5 (PFESA BP5) 15.8 UX ND x 37.0 ng/g 0 234 * (0%-30%) Nafion Byproduct 6 (PFESA BP6) 15.8 UX ND x 18.8 ng/g 9 119 (0%-30%) Nonafluoro-316-dioxaheptanoic 15.8 U ND 16.3 ng/g 2 103 (0%-30%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 15.8 U ND 16.4 ng/g 3 104 (0%-30%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - 15.8 UX ND X 14.4 ng/g 12 91 (0%-30% pentaoxadodecanoic) acid (PF05DA or TAFN4) Page 86 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 38 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluoro(3,5,7,9-tetraoxadecanoic) 15.8 UX ND X 16.4 ng/g 6 103 (0%-30%) RR3 05/16/23 02:26 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 15.8 UX ND X 17.5 ng/g 6 110 (0%-30%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 15.8 UX ND X 15.9 ng/g 13 101 (0%-30%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 15.8 U ND 14.6 ng/g 8 92 (0%-30%) (PFMOBA) Perfluoro-2- 15.8 UX ND X 16.3 ng/g 4 103 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 15.8 UX ND X 13.6 ng/g 5 86 (0%-30%) (PFMOAA) Perfluoro-3-methoxypropanoic 15.8 U ND 15.0 ng/g 8 95 (0%-30%) acid (PFMOPrA) Perfluorobutanesulfonic acid 14.0 U ND 13.9 ng/g 1 99 (0%-30%) JMB3 05/10/23 20:12 (PFBS) Perfluorobutanoic acid (PFBA) 15.8 U ND 20.3 ng/g 8 128 (0%-30%) Perfluorodecanesulfonic acid 15.3 U ND 15.5 ng/g 3 101 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 15.8 J 2.15 15.9 ng/g 4 87 (0%-30%) Perfluorododecanesulfonic acid 15.3 U ND 14.3 ng/g 2 93 (0%-30%) (PFDoS) Perfluorododecanoic acid (PFDOA) 15.8 J 0.833 16.3 ng/g 2 97 (0%-30%) Perfluoroethoxypropionic acid 15.8 UX ND X 16.1 ng/g 2 102 (0%-30%) RR3 05/16/23 02:26 (EVE) Perfluoroheptanesulfonic acid 15.1 U ND 14.4 ng/g 4 96 (0%-30%) JMB3 05/10/23 20:12 (PFHpS) Page 87 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 39 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2426643 Perfluoroheptanoic acid (PFHpA) 15.8 U ND 14.0 ng/g 18 88 (0%-30%) JMB3 05/10/23 20:12 Perfluorohexanesulfonic acid 14.4 U ND 14.4 ng/g 9 100 (0%-30%) (PFHxS) Perfluorohexanoic acid (PFHxA) 15.8 J 0.929 17.9 ng/g 3 107 (0%-30%) Perfluorononanesulfonic acid 15.2 U ND 15.4 ng/g 1 101 (0%-30%) (PFNS) Perfluorononanoic acid (PFNA) 15.8 J 0.965 16.7 ng/g 7 99 (0%-30%) Perfluorooctanesulfonamide 15.8 U ND 16.0 ng/g 3 101 (0%-30%) (PFOSA) Perfluorooctanesulfonic acid 15.8 4.19 18.9 ng/g 4 93 (0%-30%) (PFOS) Perfluorooctanoic acid (PFOA) 15.8 J 0.769 17.3 ng/g 0 105 (0%-30%) Perfluoropentanesulfonic acid 14.9 U ND 13.5 ng/g 14 91 (0%-30%) (PFPeS) Perfluoropentanoic acid (PFPeA) 15.8 U ND 15.0 ng/g 5 95 (0%-30%) Perfluorotetradecanoic acid (PFTA) 15.8 J 0.683 17.2 ng/g 1 104 (0%-30%) Perfluorotndecanoic Acid (PFTriA) 15.8 J 0.576 15.3 ng/g 11 93 (0%-30%) Perfluoroundecanoic acid (PFUnA) 15.8 J 0.905 16.7 ng/g 1 99 (0%-30%) R-EVE 15.8 UX ND X 36.9 ng/g 5 233 * (0%-30%) RR3 05/16/23 02:26 Page 88 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 40 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 QC1205403891 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.5 X 17.8 ng/L 91 (60%-158%) RR3 05/18/23 00:21 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 18.4 16.2 ng/L 88 (59%-144%) JMB3 05/16/2310:10 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.5 18.5 ng/L 95 (67%-144%) RR3 05/18/23 00:21 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 19.5 X 20.4 ng/L 105 (58%-144%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.5 18.5 ng/L 95 (54%-128%) JMB3 05/16/2310:10 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 19.5 16.3 ng/L 84 (52%-141%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.5 18.7 ng/L 96 (67%-154%) acid (DONA,ADONA) 4- 19.5 X 19.0 ng/L 97 (73%-141%) RR3 05/18/23 00:21 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 18.2 17.4 ng/L 96 (68%-135%) JMB3 05/16/2310:10 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.2 19.6 ng/L 107 (56%-151%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.5 17.8 ng/L 96 (60%-153%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 18.7 19.5 ng/L 104 (60%-141%) FTS) Hydro -EVE 19.5 X 25.4 ng/L 130 (61%-148%) RR3 05/18/23 00:21 N-ethylperfluoro-l- 19.5 22.7 ng/L 116 (23%-155%) JMB3 05/16/2310:10 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 19.5 17.8 ng/L 91 (57%-139%) octanesulfonamidoacetic acid (N- EtFOSAA) Page 89 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 41 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 N-methylperfluoro-I- 19.5 19.6 ng/L 101 (20%-154%) JMB3 05/16/2310:10 octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 19.5 19.1 ng/L 98 (59%-145%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 19.5 x 13.3 ng/L 68 (35%-138%) RR3 05/18/23 00:21 Nafion Byproduct 2 (PFESA BP2) 19.5 x 20.0 ng/L 103 (63%-143%) Nafion Byproduct 4 (PFESA BP4) 19.5 x 19.5 ng/L 100 (5%-158%) Nafion Byproduct 5 (PFESA BP5) 19.5 x 25.8 ng/L 132 (5%-149%) Nafion Byproduct 6 (PFESA BP6) 19.5 x 17.7 ng/L 91 (59%-145%) Nonafluoro-3,6-dioxahepanoic 19.5 18.9 ng/L 97 (48%-149%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.5 18.9 ng/L 97 (52%-148%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 19.5 x 17.6 ng/L 90 (58%-147%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.5 x 19.0 ng/L 98 (60%-151%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.5 x 19.5 ng/L 100 (62%-148%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.5 x 18.7 ng/L 96 (60%-144%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 19.5 19.1 ng/L 98 (58%-142%) (PFMOBA) Perfluoro-2- 19.5 x 19.7 ng/L 101 (50%-150% (perfluoromethoxy)propanoic acid (PMPA) Page 90 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 42 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 Perfluoro-2-methoxyacetic acid 19.5 x 20.3 ng/L 104 (52%-144%) RR3 05/18/23 00:21 (PFMOAA) Perfluoro-3-methoxypropanoic 19.5 20.9 ng/L 107 (60%-149%) acid (PFMOPrA) Perfluorobutanesulfonic acid 17.3 17.6 ng/L 102 (70%-144%) JMB3 05/16/23 10:10 (PFBS) Perfluorobutanoic acid (PFBA) 19.5 18.4 ng/L 94 (73%-151%) Perfluorodecanesulfonic acid 18.8 17.4 ng/L 93 (58%-134%) (PFDS) Perfluorodecanoic acid (PFDA) 19.5 17.6 ng/L 90 (65%-145%) Perfluorododecanesulfonic acid 18.9 16.6 ng/L 88 (57%-134%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.5 19.7 ng/L 101 (65%-137%) Perfluoroethoxypropionic acid 19.5 X 15.0 ng/L 77 (20%-160%) RR3 05/18/23 00:21 (EVE) Perfluoroheptanesulfonic acid 18.5 17.7 ng/L 96 (68%-138%) JMB3 05/16/23 10:10 (PFHpS) Perfluorohepanoic acid (PFHpA) 19.5 19.3 ng/L 99 (71%-133%) Perfluorohexadecanoic acid 19.5 19.7 ng/L 101 (69%-144%) (PFHxDA) Perfluorohexanesulfonic acid 17.8 15.3 ng/L 86 (67%-145% (PFHxS) Perfluorohexanoic acid (PFHxA) 19.5 19.2 ng/L 98 (70%-138% Perfluorononanesulfonic acid 18.7 18.8 ng/L 100 (64%-133% (PFNS) Page 91 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 43 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 Perfluorononanoic acid (PFNA) 19.5 20.6 ng/L 105 (69%-133%) JMB3 05/16/23 10:10 Perfluorooctadecanoic acid 19.5 17.3 ng/L 89 (35%-165%) (PFODA) Perfluorooctanesulfonamide 19.5 19.4 ng/L 99 (64%-134%) (PFOSA) Perfluorooctanesulfonic acid 19.5 18.3 ng/L 94 (65%-145%) (PFOS) Perfluorooctanoic acid (PFOA) 19.5 18.9 ng/L 97 (66%-139%) Perfluoropentanesulfonic acid 18.3 15.0 ng/L 82 (67%-136%) (PFPeS) Perfluoropentanoic acid (PFPeA) 19.5 18.4 ng/L 94 (72%-143%) Perfluoropropanoic acid (PFPrA) 19.5 X 25.9 ng/L 133 (49%-153%) RR3 05/18/23 00:21 Perfluorotetradecanoic acid (PFTA) 19.5 18.8 ng/L 97 (66%-138%) JMB3 05/16/23 10:10 Perfluorotridecanoic Acid (PFTriA) 19.5 19.4 ng/L 99 (58%-140%) Perfluoroundecanoic acid (PFUnA) 19.5 19.3 ng/L 99 (63%-135%) R-EVE 19.5 X 21.3 ng/L 109 (5%-158%) RR3 05/18/23 00:21 QC1205403892 LCSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 19.3 X 18.5 ng/L 4 96 (0%-30%) 05/18/23 00:36 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 18.2 18.3 ng/L 12 101 (0%-27%) JMB3 05/16/2310:27 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 19.3 18.2 ng/L 2 94 (0%-30%) RR3 05/18/23 00:36 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) Page 92 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 44 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 2,3,3,3-Tetrafluoro-2- 19.3 x 19.2 ng/L 6 100 (0%-27%) RR3 05/18/23 00:36 (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 19.3 21.3 ng/L 14 110 (0%-28%) JMB3 05/16/2310:27 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- 19.3 19.0 ng/L 15 99 (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 4,8-Dioxa-3H-perfluorononanoic 19.3 19.9 ng/L 6 103 (0%-26%) acid (DONA,ADONA) 4- 19.3 X 19.2 ng/L 1 99 (0%-24%) RR3 05/18/23 00:36 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 18.0 19.1 ng/L 9 106 (0%-26%) JMB3 05/16/2310:27 oxanonane-l-sulfonic acid (F-5313 Major) Fluorotelomer sulfonic acid 4:2 (4:2 18.0 18.4 ng/L 6 102 (0%-32%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 18.3 16.4 ng/L 8 90 (0%-32%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 18.5 23.2 ng/L 18 125 (0%-36%) FTS) Hydro -EVE 19.3 X 23.5 ng/L 7 122 (0%-24%) RR3 05/18/23 00:36 N-ethylperfluoro-l- 19.3 21.8 ng/L 4 113 (0%-27%) JMB3 05/16/2310:27 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 19.3 21.6 ng/L 19 112 (0%-27%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 19.3 20.2 ng/L 3 105 (0%-36%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 19.3 18.3 ng/L 4 95 (0%-27%) octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct 1 (PFESA BPI) 19.3 X 14.3 ng/L 7 74 (0%-28%) RR3 05/18/23 00:36 Page 93 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 45 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 Nation Byproduct 2 (PFESA BP2) 19.3 X 19.2 ng/L 4 100 (0%-23%) RR3 05/18/23 00:36 Nation Byproduct 4 (PFESA BP4) 19.3 X 17.3 ng/L 12 90 (0%-45%) Nation Byproduct 5 (PFESA BP5) 19.3 X 23.6 ng/L 9 122 (0%-40%) Naflon Byproduct 6 (PFESA BP6) 19.3 X 18.3 ng/L 3 95 (0%-26%) Nonafluoro-316-dioxahepanoic 19.3 19.9 ng/L 5 103 (0%-27%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 19.3 18.9 ng/L 0 98 (0%-35%) acid (PFEESA or PES) Perfluoro(3,5,7,9,11- 19.3 X 18.6 ng/L 5 96 (0%-40%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 19.3 X 19.8 ng/L 4 102 (0%-39%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 19.3 X 20.3 ng/L 4 105 (0%-36%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 19.3 X 19.0 ng/L 2 98 (0%-27%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 19.3 18.8 ng/L 2 98 (0%-29%) (PFMOBA) Perfluoro-2- 19.3 x 19.6 ng/L 0 102 (0%-30%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 19.3 X 18.5 ng/L 9 96 (0%-31%) (PFMOAA) Perfluoro-3-methoxypropanoic 19.3 19.9 ng/L 5 103 (0%-25%) acid (PFMOPrA) Perfluorobutanesulfonic acid 17.1 16.8 ng/L 4 99 (0%-35%) JMB3 05/16/23 10:27 (PFBS) Page 94 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 46 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 Perfluorobutanoic acid (PFBA) 19.3 19.8 ng/L 8 103 (0%-20%) JMB3 05/16/23 10:27 Perfluorodecanesulfonic acid 18.6 19.3 ng/L 10 104 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 19.3 18.2 ng/L 3 95 (0%-31%) Perfluorododecanesulfonic acid 18.7 18.5 ng/L 11 99 (0%-32%) (PFDoS) Perfluorododecanoic acid (PFDOA) 19.3 19.8 ng/L 0 103 (0%-26%) Perfluoroethoxypropionic acid 19.3 X 14.7 ng/L 2 76 (0%-30%) RR3 05/18/23 00:36 (EVE) Perfluoroheptanesulfonic acid 18.3 19.2 ng/L 8 105 (0%-40%) JMB3 05/16/23 10:27 (PFHpS) Perfluoroheptanoic acid (PFHpA) 19.3 18.8 ng/L 3 98 (0%-23%) Perfluorohexadecanoic acid 19.3 23.2 ng/L 16 120 (0%-26%) (PFHxDA) Perfluorohexanesulfonic acid 17.6 16.6 ng/L 8 94 (0%-27%) (PFHxS) Perfluorohexanoic acid (PFHxA) 19.3 20.2 ng/L 5 105 (0%-27%) Perfluorononanesulfonic acid 18.5 19.7 ng/L 5 106 (0%-27%) (PFNS) Perfluorononanoic acid (PFNA) 19.3 18.9 ng/L 9 98 (0%-25%) Perfluorooctadecanoic acid 19.3 19.1 ng/L 10 99 (0%-39%) (PFODA) Perfluorooctanesulfonamide 19.3 19.6 ng/L 1 101 (0%-26%) (PFOSA) Page 95 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Workorder: 621012 QC Summary Page 47 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 Perfluorooctanesulfonic acid 19.3 19.4 ng/L 6 101 (0%-25%) JMB3 05/16/23 10:27 (PFOS) Perfluorooctanoic acid (PFOA) 19.3 19.9 ng/L 5 103 (0%-27%) Perfluoropentanesulfonic acid 18.1 15.7 ng/L 5 87 (0%-40%) (PFPeS) Perfluoropentanoic acid (PFPeA) 19.3 19.1 ng/L 3 99 (0%-25%) Perfluoropropanoic acid (PFPrA) 19.3 x 23.6 ng/L 9 123 (0%-26%) RR3 05/18/23 00:36 Perfluorotetradecanoic acid (PFTA) 19.3 19.9 ng/L 5 103 (0%-26%) JMB3 05/16/23 10:27 Perfluorotridecanoic Acid (PFTriA) 19.3 21.2 ng/L 9 110 (0%-31%) Perfluoroundecanoic acid (PFUnA) 19.3 19.8 ng/L 2 103 (0%-30%) R-EVE 19.3 x 16.9 ng/L 23 88 (0%-26%) RR3 05/18/23 00:36 QC1205403890 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- Ux ND ng/L 05/18/23 00:06 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/L JMB3 05/16/2310:01 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/L RR3 05/18/23 00:06 (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 05/16/2310:01 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- U ND ng/L octanesulfonamido)-ethanol (N- McFOSE) Page 96 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 48 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 4,8-Dioxa-3H-perfluorononanoic U ND ng/L JMB3 05/16/2310:01 acid (DONA,ADONA) 4- Ux ND ng/L RR3 05/18/23 00:06 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- U ND ng/L JMB3 05/16/2310:01 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 05/18/23 00:06 N-ethylperfluoro-I- U ND ng/L JMB3 05/16/2310:01 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) Nafion Byproduct 1 (PFESA BPI) Ux ND ng/L RR3 05/18/23 00:06 Nafion Byproduct 2 (PFESA BP2) Ux ND ng/L Nation Byproduct 4 (PFESA BP4) Ux ND ng/L Nafion Byproduct 5 (PFESA BP5) Ux ND ng/L Page 97 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 49 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 Nation Byproduct 6 (PFECA BP6) Ux ND ng/L RR3 05/18/23 00:06 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 05/16/23 10:01 (PFBS) Perfluorobutanoic acid (PFBA) U ND ng/L Perfluorodecanesulfonic acid U ND ng/L (PFDS) Perfluorodecanoic acid (PFDA) U ND ng/L Page 98 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 50 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 Perfluorododecanesulfonic acid U ND ng/L JMB3 05/16/23 10:01 (PFDoS) Perfluorododecanoic acid (PFDOA) U ND ng/L Perfluoroethoxypropionic acid UX ND ng/L RR3 05/18/23 00:06 (EVE) Perfluoroheptanesulfonic acid U ND ng/L JMB3 05/16/23 10:01 (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) Page 99 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 51 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2428642 Perfluoropentanoic acid (PFPeA) U ND ng/L JMB3 05/16/23 10:01 Perfluoropropanoic acid (PFPrA) U% ND ng/L RR3 05/18/23 00:06 Perfluorotetradecanoic acid (PFTA) U ND ng/L JMB3 05/16/23 10:01 Perfluorotridecanoic Acid (PFTriA) U ND ng/L Perfluoroundecanoic acid (PFUnA) U ND ng/L R-EVE UX ND ng/L RR3 05/18/23 00:06 Batch 2429817 QC1205406636 LCS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 4.95 X 4.79 ng/g 97 (50%-150%) RR3 05/18/23 08:41 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 4.66 4.53 ng/g 97 (69%-143%) JMB3 05/17/2317:48 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 4.95 4.91 ng/g 99 (72%-137%) RR3 05/18/23 08:41 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 4.95 X 5.54 ng/g 112 (59%-145%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 4.95 5.35 ng/g 108 (61%-131%) JMB3 05/17/2317:48 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 4.95 4.07 ng/g 82 (66%-140%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 4.95 4.94 ng/g 100 (49%-150%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 4.95 5.15 ng/g 104 (54%-145%) acid (5:3 FTCA)(FPePA) Page 100 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 52 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 4,4,5,5,6,6-Heptafluorohexanoic 4.95 5.61 ng/g 113 (59%-131%) JMB3 05/17/2317:48 acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 4.95 5.44 ng/g 110 (70%-135%) acid (DONA,ADONA) 4- 4.95 X 4.84 ng/g 98 (60%-141%) RR3 05/18/23 08:41 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 4.61 4.56 ng/g 99 (66%-140%) JMB3 05/17/2317:48 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 4.63 5.77 ng/g 125 (63%-144%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 4.70 5.94 ng/g 126 (62%-148%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 4.75 4.99 ng/g 105 (65%-144%) FTS) Hydro -EVE 4.95 X 6.70 ng/g 135 (50%-150%) RR3 05/18/23 08:41 N-ethylperfluoro-l- 4.95 5.18 ng/g 105 (73%-140%) JMB3 05/17/2317:48 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-I- 4.95 4.74 ng/g 96 (66%-141%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-I- 4.95 4.88 ng/g 99 (70%-136%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 4.95 5.54 ng/g 112 (68%-141%) octanesulfonamidoacetic acid (N- McFOSAA) Nation Byproduct 1 (PFESA BPI) 4.95 x 4.95 ng/g 100 (63%-138%) RR3 05/18/23 08:41 Nation Byproduct 2 (PFESA BP2) 4.95 x 5.09 ng/g 103 (64%-142% Naflon Byproduct 4 (PFESA BP4) 4.95 X 5.35 ng/g 108 (50%-150% Page 101 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 53 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Nation Byproduct 5 (PFESA BP5) 4.95 X 4.59 ng/g 93 (50%-150%) RR3 05/18/23 08:41 Nation Byproduct 6 (PFESA BP6) 4.95 X 5.09 ng/g 103 (50%-150%) Nonafluoro-316-dioxaheptanoic 4.95 5.34 ng/g 108 (50%-150%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 4.95 5.12 ng/g 103 (50%-150%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - 4.95 X 4.45 ng/g 90 (58%-151%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 4.95 X 5.53 ng/g 112 (59%-158%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 4.95 X 4.99 ng/g 101 (58%-156%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 4.95 X 5.02 ng/g 101 (67%-142%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 4.95 5.30 ng/g 107 (64%-142%) (PFMOBA) Perfluoro-2- 4.95 X 5.17 ng/g 104 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 4.95 x 5.21 ng/g 105 (64%-146%) (PFMOAA) Perfluoro-3-methoxypropanoic 4.95 5.78 ng/g 117 (60%-159%) acid (PFMOPrA) Perfluorobutanesulfonic acid 4.38 4.32 ng/g 98 (71%-136%) JMB3 05/17/23 17:48 (PFBS) Perfluorobutanoic acid (PFBA) 4.95 4.70 ng/g 95 (66%-141% Perfluorodecanesulfonic acid 4.78 4.80 ng/g 100 (70%-139% (PFDS) Page 102 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 54 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Perfluorodecanoic acid (PFDA) 4.95 4.94 ng/g 100 (66%-139%) JMB3 05/17/23 17:48 Perfluorododecanesulfonic acid 4.79 4.45 ng/g 93 (54%-148%) (PFDoS) Perfluorododecanoic acid (PFDOA) 4.95 4.99 ng/g 101 (70%-139%) Perfluoroethoxypropionic acid 4.95 X 4.39 ng/g 89 (50%-150%) RR3 05/18/23 08:41 (EVE) Perfluoroheptanesulfonic acid 4.70 4.42 ng/g 94 (72%-138%) JMB3 05/17/23 17:48 (PFHpS) Perfluoroheptanoic acid (PFHpA) 4.95 5.06 ng/g 102 (72%-132%) Perfluorohexanesulfonic acid 4.51 4.30 ng/g 95 (68%-139%) (PFHxS) Perfluorohexanoic acid (PFHxA) 4.95 5.09 ng/g 103 (70%-135%) Perfluorononanesulfonic acid 4.75 4.60 ng/g 97 (60%-138%) (PFNS) Perfluorononanoic acid (PFNA) 4.95 4.28 ng/g 86 (70%-136%) Perfluorooctanesulfonamide 4.95 4.73 ng/g 96 (76%-138%) (PFOSA) Perfluorooctanesulfonic acid 4.95 4.71 ng/g 95 (73%-135%) (PFOS) Perfluorooctanoic acid (PFDA) 4.95 4.95 ng/g 100 (72%-135%) Perfluoropentanesulfonic acid 4.65 4.39 ng/g 94 (66%-138%) (PFPeS) Perfluoropentanoic acid (PFPeA) 4.95 4.86 ng/g 98 (72%-155%) Page 103 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 55 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Perfluorotetradecanoic acid (PFTA) 4.95 5.03 ng/g 102 (72%-139%) JMB3 05/17/23 17:48 Perfluorotridecanoic Acid (PFTriA) 4.95 4.82 ng/g 97 (60%-149%) Perfluoroundecanoic acid (PFUnA) 4.95 4.59 ng/g 93 (70%-135%) R-EVE 4.95 X 5.45 ng/g 110 (50%-150%) RR3 05/18/23 08:41 QC1205406635 MB 1,1,2,2-Tetrafluoro-2-(1,2,2,2- UX ND ng/g 05/18/23 08:26 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- U ND ng/g JMB3 05/17/2317:39 oxaundecane-l-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- U ND ng/g RR3 05/18/23 08:26 (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 JMB3 05/17/2317:39 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) 4,8-Dioxa-3H-perfluorononanoic U ND ng/g acid (DONA,ADONA) 4- UX ND ng/g RR3 05/18/23 08:26 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) Page 104 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 56 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 9-Chlorohexadecafluoro-3- U ND ng/g JMB3 05/17/2317:39 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 05/18/23 08:26 N-ethylperfluoro-1- U ND ng/g JMB3 05/17/2317:39 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-I- 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 05/18/23 08:26 Nafion Byproduct 2 (PFESA BP2) Ux ND ng/g Nafion Byproduct 4 (PFESA BP4) Ux ND ng/g Nafion Byproduct 5 (PFESA BP5) Ux ND ng/g Nation Byproduct 6 (PFESA BP6) Ux ND ng/g Nonafluoro-316-dioxaheptanoic U ND ng/g acid (NFDHA or PFECA B) Page 105 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 57 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Perfluoro(2-ethoxyethane)sulfonic U ND ng/g RR3 05/18/23 08:26 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 JMB3 05/17/23 17:39 (PFBS) Perfluorobutanoic acid (PFBA) U ND ng/g 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 Page 106 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 58 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Perfluoroethoxypropionic acid UX ND ng/g RR3 05/18/23 08:26 (EVE) Perfluoroheptanesulfonic acid U ND ng/g JMB3 05/17/23 17:39 (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 Perfluorotridecanoic Acid (PFTriA) U ND ng/g Perfluoroundecanoic acid (PFUnA) U ND ng/g Page 107 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 59 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 R-EVE UX ND ng/g RR3 05/18/23 08:26 QC1205406637 621012008 MS 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 6.16 UX ND X 6.77 ng/g 110 (42%-158%) 05/18/23 09:11 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- 5.80 U ND 4.81 ng/g 83 (43%-141%) JMB3 05/17/2318:06 oxaundecane- 1 -sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 6.16 U ND 6.29 ng/g 102 (61%-150%) RR3 05/18/23 09:11 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 6.16 UX ND X 6.85 ng/g 111 (43%-154%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 6.16 U ND 6.93 ng/g 113 (49%-153%) JM133 05/17/2318:06 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-l- 6.16 U ND 6.24 ng/g 101 (54%-154%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 6.16 U ND 5.96 ng/g 97 (30%-157%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 6.16 U ND 6.14 ng/g 100 (31%-158%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 6.16 U ND 6.29 ng/g 102 (32%-153%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 6.16 U ND 6.73 ng/g 109 (63%-143%) acid (DONA,ADONA) 4- 6.16 UX ND X 6.88 ng/g 112 (54%-161%) RR3 05/18/23 09:11 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 5.74 U ND 5.75 ng/g 100 (62%-146%) JM133 05/17/2318:06 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 5.76 U ND 6.10 ng/g 106 (62%-148%) FTS) Page 108 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 60 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Fluorotelomer sulfonic acid 6:2 (6:2 5.85 U ND 5.03 ng/g 86 (50%-153%) JMB3 05/17/23 18:06 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 5.91 U ND 6.59 ng/g 111 (53%-158%) 05/18/23 09:06 FTS) Hydro -EVE 6.16 UX ND X 8.27 ng/g 134 (51 %-148%) RR3 05/18/23 09:11 N-ethylperfluoro-l- 6.16 U ND 6.07 ng/g 99 (48%-148%) JMB3 05/17/2318:06 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-I- 6.16 U ND 6.64 ng/g 103 (65%-152%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 6.16 U ND 6.11 ng/g 99 (55%-151%) octanesulfonamide (N-McFOSA) N-methylperfluoro-I- 6.16 J 0.751 6.98 ng/g 101 (59%-152%) octanesulfonamidoacetic acid (N- McFOSAA) Nafion Byproduct 1 (PFESA BPI) 6.16 UX ND X 6.28 ng/g 102 (60%-147%) RR3 05/18/23 09:11 Nafion Byproduct 2 (PFESA BP2) 6.16 UX ND X 6.86 ng/g 111 (65%-150%) Nation Byproduct 4 (PFESA BP4) 6.16 UX ND X 15.2 ng/g 247 * (40%-160%) Nafion Byproduct 5 (PFESA BP5) 6.16 UX ND X 12.2 ng/g 198 * (40%-160%) Nafion Byproduct 6 (PFESA BP6) 6.16 UX ND X 6.53 ng/g 106 (53%-153%) Nonafluoro-316-dioxaheptanoic 6.16 U ND 6.31 ng/g 103 (43%-163%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 6.16 U ND 6.79 ng/g 110 (48%-148%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 1 - 6.16 UX ND X 6.41 ng/g 104 (42%-167% pentaoxadodecanoic) acid (PF05DA or TAFN4) Page 109 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 61 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Perfluoro(3,5,7,9-tetraoxadecanoic) 6.16 UX ND X 6.44 ng/g 105 (49%-162%) RR3 05/18/23 09:11 acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 6.16 UX ND X 6.45 ng/g 105 (44%-167%) acid (PF030A) Perfluoro(3,5-dioxahexanoic) acid 6.16 UX ND X 7.11 ng/g 115 (57%-153%) (PF02HxA) Perfluoro(4-methoxybutanoic) acid 6.16 U ND 10.6 ng/g 172 * (47%-166%) (PFMOBA) Perfluoro-2- 6.16 UX ND X 7.52 ng/g 122 (50%-150%) (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 6.16 UX ND X 6.85 ng/g 111 (49%-169%) (PFMOAA) Perfluoro-3-methoxypropanoic 6.16 U ND 7.91 ng/g 129 (40%-162%) acid (PFMOPrA) Perfluorobutanesulfonic acid 5.45 0.619 6.14 ng/g 101 (67%-146%) JMB3 05/17/23 18:06 (PFBS) Perfluorobutanoic acid (PFBA) 6.16 0.775 7.89 ng/g 116 (56%-156%) Perfluorodecanesulfonic acid 5.94 U ND 6.05 ng/g 99 (61%-150%) (PFDS) Perfluorodecanoic acid (PFDA) 6.16 1.68 8.13 ng/g 105 (59%-153%) Perfluorododecanesulfonic acid 5.96 U ND 5.15 ng/g 86 (39%-149%) (PFDoS) Perfluorododecanoic acid (PFDOA) 6.16 1.05 6.82 ng/g 94 (59%-147%) Perfluoroethoxypropionic acid 6.16 UX ND X 6.10 ng/g 99 (49%-151%) RR3 05/18/23 09:11 (EVE) Perfluoroheptanesulfonic acid 5.85 U ND 5.47 ng/g 94 (50%-156%) JMB3 05/17/23 18:06 (PFHpS) Page 110 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 62 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Perfluoroheptanoic acid (PFHpA) 6.16 J 0.474 6.91 ng/g 105 (61%-149%) JMB3 05/17/23 18:06 Perfluorohexanesulfonic acid 5.61 U ND 6.26 ng/g 112 (64%-150%) (PFHxS) Perfluorohexanoic acid (PFHxA) 6.16 1.16 7.34 ng/g 100 (61%-151%) Perfluorononanesulfonic acid 5.91 U ND 6.01 ng/g 102 (47%-147%) (PFNS) Perfluorononanoic acid (PFNA) 6.16 J 0.580 7.54 ng/g 113 (58%-152%) Perfluorooctanesulfonamide 6.16 U ND 6.43 ng/g 104 (68%-153%) (PFOSA) Perfluorooctanesulfonic acid 6.16 4.18 10.3 ng/g 99 (53%-157%) (PFOS) Perfluorooctanoic acid (PFOA) 6.16 1.77 7.90 ng/g 100 (53%-155%) Perfluoropentanesulfonic acid 5.79 U ND 6.43 ng/g 111 (58%-150%) (PFPeS) Perfluoropentanoic acid (PFPeA) 6.16 2.39 8.20 ng/g 94 (66%-150%) Perfluorotetradecanoic acid (PFTA) 6.16 J 0.451 6.61 ng/g 100 (60%-157%) Perfluorotridecanoic Acid (PFTriA) 6.16 J 0.336 6.92 ng/g 107 (35%-157%) Perfluoroundecanoic acid (PFUnA) 6.16 J 0.558 6.79 ng/g 101 (58%-154%) R-EVE 6.16 UX ND X 12.9 ng/g 209* (40%-160%) RR3 05/18/23 09:11 QC1205406638 621012008 MSD 1,1,2,2-Tetrafluoro-2-(1,2,2,2- 6.25 UX ND X 6.86 ng/g 1 110 (0%-30%) 05/18/23 09:26 tetrafluoroethoxy)ethane sulfonic acid (NVHOS) Page 111 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 63 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 11-Chloroeicosafluoro-3- 5.88 U ND 5.02 ng/g 4 85 (0%-30%) JMB3 05/17/2318:14 oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- 6.25 U ND 6.42 ng/g 2 103 (0%-30%) RR3 05/18/23 09:26 (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- 6.25 UX ND X 7.32 ng/g 7 117 (0%-30%) (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-l- 6.25 U ND 6.61 ng/g 5 106 (0%-30%) JMB3 05/17/2318:14 octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- 6.25 U ND 6.19 ng/g 1 99 (0%-30%) octanesulfonamido)-ethanol (N- McFOSE) 2H,2H,3H,3H-Perfluorodecanoic 6.25 U ND 6.93 ng/g 15 111 (0%-30%) acid (7:3 FTCA)(FHpPA) 2H,2H,3H,3H-Perfluorooctanoic 6.25 U ND 7.29 ng/g 17 117 (0%-30%) acid (5:3 FTCA)(FPePA) 4,4,5,5,6,6-Heptafluorohexanoic 6.25 U ND 6.53 ng/g 4 105 (0%-30%) acid (3:3 FTCA)(FPrPA) 4,8-Dioxa-3H-perfluorononanoic 6.25 U ND 6.93 ng/g 3 111 (0%-30%) acid (DONA,ADONA) 4- 6.25 UX ND X 6.63 ng/g 4 106 (0%-30%) RR3 05/18/23 09:26 (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- 5.82 U ND 5.99 ng/g 4 103 (0%-30%) JMB3 05/17/2318:14 oxanonane-l-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 5.84 U ND 6.10 ng/g 0 105 (0%-30%) FTS) Fluorotelomer sulfonic acid 6:2 (6:2 5.93 U ND 5.24 ng/g 4 88 (0%-30%) FTS) Fluorotelomer sulfonic acid 8:2 (8:2 6.00 U ND 7.25 ng/g 10 121 (0%-30%) 05/18/23 09:15 FTS) Hydro -EVE 6.25 UX ND X 8.08 ng/g 2 129 (0%-30%) RR3 05/18/23 09:26 Page 112 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 64 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 N-ethylperfluoro-l- 6.25 U ND 5.82 ng/g 4 93 (0%-30%) JMB3 05/17/2318:14 octanesulfonamide (N-EtFOSA) N-ethylperfluoro-l- 6.25 U ND 6.31 ng/g 5 96 (0%-30%) octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- 6.25 U ND 7.40 ng/g 19 118 (0%-30%) octanesulfonamide (N-McFOSA) N-methylperfluoro-1- 6.25 J 0.751 7.41 ng/g 6 107 (0%-30%) octanesulfonamidoacetic acid (N- McFOSAA) Naflon Byproduct 1 (PFESA BPI) 6.25 UX ND X 6.63 ng/g 5 106 (0%-30%) RR3 05/18/23 09:26 Nation Byproduct 2 (PFESA BP2) 6.25 Ux ND X 6.90 ng/g 1 110 (0%-30%) Nation Byproduct 4 (PFESA BP4) 6.25 Ux ND X 13.0 ng/g 16 209 * (0%-30%) Nation Byproduct 5 (PFESA BP5) 6.25 Ux ND X 13.7 ng/g 12 219 * (0%-30%) Nafion Byproduct 6 (PFESA BP6) 6.25 Ux ND X 6.98 ng/g 7 112 (0%-30%) Nonafluoro-3,6-dioxaheptanoic 6.25 U ND 7.17 ng/g 13 115 (0%-30%) acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic 6.25 U ND 6.80 ng/g 0 109 (0%-30%) acid (PFEESA or PES) Perfluoro(3,5,7,9,1 I - 6.25 UX ND X 6.10 ng/g 5 98 (0%-30%) pentaoxadodecanoic) acid (PF05DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) 6.25 UX ND x 6.94 ng/g 8 111 (0%-30%) acid (PF04DA) Perfluoro(3,5,7-trioxaoctanoic) 6.25 UX ND X 6.69 ng/g 4 107 (0%-30%) acid (PF030A) Perfluoro(4-methoxybutanoic) acid 6.25 U ND 7.10 ng/g 39* 114 (0%-30% (PFMOBA) Page 113 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 65 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Perfluoro-2- 6.25 UX ND X 7.20 ng/g 4 115 (0%-30%) RR3 05/18/23 09:26 (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid 6.25 UX ND X 6.62 ng/g 4 106 (0%-30%) (PFMOAA) Perfluoro-3-methoxypropanoic 6.25 U ND 7.86 ng/g 1 126 (0%-30%) acid (PFMOPrA) Perfluorobutanesulfonic acid 5.53 0.619 6.31 ng/g 3 103 (0%-30%) JMB3 05/17/23 18:14 (PFBS) Perfluorobutanoic acid (PFBA) 6.25 0.775 7.86 ng/g 0 113 (0%-30%) Perfluorodecanesulfonic acid 6.03 U ND 6.24 ng/g 3 100 (0%-30%) (PFDS) Perfluorodecanoic acid (PFDA) 6.25 1.68 6.93 ng/g 16 84 (0%-30%) Perfluorododecanesulfonic acid 6.05 U ND 5.54 ng/g 7 92 (0%-30%) (PFDoS) Perfluorododecanoic acid (PFDOA) 6.25 1.05 7.82 ng/g 14 108 (0%-30%) Perfluoroethoxypropionic acid 6.25 UX ND X 6.17 ng/g 1 99 (0%-30%) RR3 05/18/23 09:26 (EVE) Perfluoroheptanesulfonic acid 5.93 U ND 5.66 ng/g 3 95 (0%-30%) JMB3 05/17/23 18:14 (PFHpS) Perfluoroheptanoic acid (PFHpA) 6.25 J 0.474 7.56 ng/g 9 113 (0%-30%) Perfluorohexanesulfonic acid 5.70 U ND 5.97 ng/g 5 105 (0%-30%) (PFHxS) Perfluorohexanoic acid (PFHxA) 6.25 1.16 7.51 ng/g 2 102 (0%-30% Perfluorononanesulfonic acid 6.00 U ND 6.17 ng/g 3 103 (0%-30% (PFNS) Page 114 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 66 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time Perfluorinated Compounds Batch 2429817 Perfluorononanoic acid (PFNA) 6.25 J 0.580 6.47 ng/g 15 94 (0%-30%) JMB3 05/17/23 18:14 Perfluorooctanesulfonamide 6.25 U ND 6.34 ng/g 1 102 (0%-30%) (PFOSA) Perfluorooctanesulfonic acid 6.25 4.18 10.6 ng/g 3 102 (0%-30%) (PFOS) Perfluorooctanoic acid (PFOA) 6.25 1.77 8.40 ng/g 6 106 (0%-30%) Perfluoropentanesulfonic acid 5.87 U ND 6.14 ng/g 5 104 (0%-30%) (PFPeS) Perfluoropentanoic acid (PFPeA) 6.25 2.39 8.64 ng/g 5 100 (0%-30%) Perfluorotetradecanoic acid (PFTA) 6.25 J 0.451 7.22 ng/g 9 108 (0%-30%) Perfluorotridecanoic Acid (PFTriA) 6.25 J 0.336 7.03 ng/g 2 107 (0%-30%) Perfluoroundecanoic acid (PFUnA) 6.25 J 0.558 6.54 ng/g 4 96 (0%-30%) R-EVE 6.25 UX ND X 11.7 ng/g 10 187 * (0%-30%) RR3 05/18/23 09:26 Notes: 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 Page 115 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 621012 Page 67 of 67 Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time H Analytical holding time was exceeded ** Analyte is a surrogate compound < Result is less than value reported > Result is greater than value reported It 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 116 of 129 SDG: 621012 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Client: NCDENR QC Summary Report Date: May 19, 2023 1641 Mail Service Center Page 1 of 1 Raleigh, North Carolina Contact: Stephanie Zorio Workorder: 621012 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. 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N v Q U � ;a p II � � 1.7 II i oI0 En � o p '� °'� •y c .» �, � ;� Ili x z ag _ rl U �L a .. o Z of %. o 0 12L z h CG �/��}, •joy S' •� N al O o O 9 c� 14 asvfja" * e 2b C 2101 — w b b P. w w �,._.) r, m n d n Ai W U V F4 r j f l i SAMMV..I2Rf`FTprR,12PVTTi AIr,nnAr 9DG/ARJCO(YWul-k Orrice: f l3 Received �OOne A � 7 :Stagy Date Revolved- Cirelc Applicable; PedLtx Express FedCx Ground UPS Field Services Courier Olhcr Carlrier aud'1' ackimg Number — C]b �O C 0474385 3241lr Suspected linr}ird Inrormntion *If Nei Coulas> 100cpm on samples nml marked "radiollaive", conlsu:t the Ra(liution Safely Group for f+lrthnr iavestignlion. lltizard Class Shipped: UNff; A)Shi p led is it DOT 1{axarctous? If UN2910, Is the Radioactive Shipment Survey Cnmplian(? yel— No — 13) Did the client desiA.1c I the samples apt: to be COC notation or radioactive stickers on evnituncis egad client loss} nation. LCCCivcd w rndioacnvciF C) Did the RSO clmsi the samples as A Maximum Net Counts Observed' (Observed Comms - Area F3nckground Counts): _CPlvl ! rmitlllr radioactive? } ClnssiCod as: Rad I Rnd 2 Rad 3 COC notation or linvilYt Inllels on Containers equal client (Icsignntion, D) Did the clicuc deli sue Sion )Irs are hazimlous? If D or R N yes, select Hunixis below. I E) D i c I the RSO idenI if LAN111It 11t1' ardti?LJ-, PC€i!s Plflltt114111e Pol-ei nt Soil RCRA Asboslos 33ek llium Chhcr: la Simple Kecci' ( Criteria i1 ( "x, Cailuuouts/Qualifiers (Itoquimd.flit' N(m^C(lnf(1t'trijug Room) ' Shipping L'011tal€rCl'Y received iltlaCl Slid Cliele Applicable: Semis bl'nlrc(i Dmnnged c(nlntiner Lzaking c000,IneiOther (dmuribe) I scaled? Chalet of Custody documents included Circle Atiplicnhlc: CHOWcmmnc(ed nild provided COC COC crented upon meeiln Willi shipment? I 3 Samples requiring cold praservation pMMI'Vation Method; Wet Ice ice Packs Dry ice None Other: *nil telnpernaucs are iecnnlctl in Cclsins within (U ¢ C cie . C ?* I'r[v(Ii Daily check puyurnied turd pnssed on IR Temperatum Device Serial 4: I A tentpe]'ature gud7 Soa/uda'y'rcmpcimlm'c Device Serial It (if Applienblo): Circic Applirnbla: Senls innken Daning(sd snntniner Leaking container Oilier ((lesc]'ibe) 5 Sample, Contctin6rs intact nod scaled? I Samples requil'T9 chemical pruervatiau Smnplc IM and Coninhwa Affected: it( proper p1I7 If Proscrvntlon mldc(l, IAlftl # ll' Yes, tire Encores or Soil Kits present For solids? Ycsmm, Nn_ NA_(lf yes, lake to VOA Freezer) Do any samples require Volatile Du I](hlld VQA V10.1s Coillkllll acid p1b5C1VI1lIOR? Yes—_ F iU NA.._(If unknown, s(•.led No) Are liquid VOA viols free ofhcndspace? Yes_ Nq ._ NA, 7 'Analysis? Smnplc [lYs and contnincrs offecied: ID's and tests affccwd: g Salllples reccivy.d Wi0lin holding hate? �I ' I Suutple ID's oil`COC match ID's un )n'4 an(i contninew affoclod: 9 hotlles7 � Dtite & dine n COC tnimch date & riot! nI Circle Applicable; No dales on Coll[Anels No times on conininers COC missing info Other (describe) I0 on bottles? Number ofcoajainersreceived mulch Applicable: NuemltnincrcnanSonCC7C Oiber(tiumibc) 11 IleCircle oullibm, n7dictlt&I nil COC? Are sample con(aillel's identifiable as I2 GpL )rnvided [,Y use of GEL labels? 13 COC form is Ii6perly signed in Circle. Applicable; No[ relinquished Other (describe) rcUnquis))ed/t'eoivedsectinns? ___ Cominews (Use Comt 11Mtion Foon if needed): l I f i 1 I i PM (m I'MA) review: Iniiinla 1 D1LM _ ! ` —"J'ag 4[if�,. GL-CHL-SR-001 Rev 7 Page 120 of 129 SDG: 621012 List of current GEL Certifications as of 19 May 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 121 of 129 SDG: 621012 Technical Case Narrative NC Dept Environmental Quality SDG #: 621012 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# 14 Analytical Batches: 2424988 and 2424987 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 621012005 NCO024210-EFF-20230504 621012006 NCO024210-INF-20230504 621012010 NCO026123-INF-20230504 621012011 NCO026123-EFF-20230504 1205396671 Method Blank (MB) 1205396672 Laboratory Control Sample (LCS) 1205396673 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 Laboratory Control Sample Duplicate (LCSD) An LCSD was used in place of matrix QC due to limited sample volume. Internal Standard (ISTD) Acceptance Samples 621012006 (NC0024210-INF-20230504), 621012010 (NC0026123-INF-20230504) and 621012011 (NC0026123-EFF-20230504) did not meet acceptance criteria for one or more internal standards. 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. Technical Information Sample Dilutions The following samples and/or QC were diluted due to matrix interference. 621012006 (NC0024210-INF-20230504). The following samples and/or QC were diluted due to the Internal Standard Recovery not within the limits in the undiluted analysis. 621012006 (NC00242I0-INF-20230504), 621012010 (NC0026123-INF-20230504) and 621012011 (NC0026123-EFF-20230504). Analyte 621012 005 006 010 011 Fluorotelomer sulfonic acid 4:2 (4:2 FTS) 25X 5X 5X 25X Fluorotelomer sulfonic acid 6:2 (6:2 FTS) 5X 5X 5X 1X Page 122 of 129 SDG: 621012 Fluorotelomer sulfonic acid 8:2 (8:2 FTS) 5X 25X 5X 1X Perfluorohexadecanoic acid (PFHxDA) 1X 5X 5X 1X Perfluorooctadecanoic acid (PFODA) 1X 5X 5X 1X Miscellaneous Information Manual Integrations Manual integrations were performed on client sample chromatograms 621012006 (NC0024210-INF-20230504), 621012010 (NC0026123-INF-20230504) and 621012011 (NC0026123-EFF-20230504) because the sample matrices affected the ability of the software to draw appropriate peak baselines. 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# 14 Analytical Batches: 2426059 and 2426055 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 621012001 NCO024210-TB-20230504 621012002 NCO024210-FRB-20230504 621012003 NCO026123-FRB-20230504-SO 1205399357 Method Blank (MB) 1205399358 Laboratory Control Sample (LCS) 1205399359 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 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 (QC) Information Laboratory Control Sample Duplicate (LCSD) An LCSD was used in place of matrix QC due to limited sample volume. Page 123 of 129 SDG: 621012 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 1205399358 (LCS) and 1205399359 (LCSD) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) RPD 41* (0%-32%) 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# 14 Analytical Batches: 2426643 and 2426642 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 621012007 NCO024210-BIOS-20230504 1205400359 Method Blank (MB) 1205400360 Laboratory Control Sample (LCS) 1205400361 620804001(NonSDG) Matrix Spike (MS) 1205400362 620804001(NonSDG) 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. Calibration Information Initial Calibration Not all of the initial calibration requirements have been met for this SDG. An analyte of interest, NVHOS, was not within 70-130% of its true value for a single level of the ICAL. Due to the relative standard deviation (RSD) and coefficient of correlation being within acceptance criteria, the data is reported as is. 621012007 (NC0024210-BIOS-20230504). CCV Requirements Calibration verification standard (ICV or CCV) requirements have not been met for sample 621012007 (NC0024210-BIOS-20230504) 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 (QC) Information Matrix Spike (MS) Recovery Statement Page 124 of 129 SDG: 621012 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 1205400361 (Non SDG 620804001MS) Nafion Byproduct 4 (PFESA BP4) 303* (40%-160%) Nafion Byproduct 5 (PFESA BP5) 226* (40%-160%) R-EVE 237* (40%-160%) 1205400362 (Non SDG 620804001MSD) Nafion Byproduct 4 (PFESA BP4) 248* (40%-160%) Nafion Byproduct 5 (PFESA BP5) 234* (40%-160%) R-EVE 233* (40%-160%) Internal Standard (ISTD) Acceptance Samples 621012007 (NC002421O-BIOS-20230504) did not meet acceptance criteria for one or more internal standards. 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. 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. 621012007 (NC00242IO-BIOS-20230504). Analyte 621012 007 2-(N-ethylperfluoro-l-octanesulfonamido)-ethanol (N-EtFOSE) 5X 2-(N-methylperfluoro-l-octanesulfonamido)-ethanol (N-McFOSE) 5X Fluorotelomer sulfonic acid 4:2 (4:2 FTS) 25X Fluorotelomer sulfonic acid 6:2 (6:2 FTS) 25X Fluorotelomer sulfonic acid 8:2 (8:2 FTS) 125X N-ethylperfluoro-l-octanesulfonamide (N-EtFOSA) 5X N-methylperfluoro-l-octanesulfonamide (N-McFOSA) 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. 621012007 (NC0024210-BIOS-20230504). Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Page 125 of 129 SDG: 621012 Analytical Procedure: GL-OA-E-076 REV# 14 Analytical Batches: 2428642 and 2428641 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 621012004 NCO026123-FRB-20230504 1205403890 Method Blank (MB) 1205403891 Laboratory Control Sample (LCS) 1205403892 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 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. Oualitv Control (OCl Information Laboratory Control Sample Duplicate (LCSD) An LCSD was used in place of matrix QC due to limited sample volume. 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# 14 Analytical Batches: 2429817 and 2429816 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 621012008 NC0026123-SO-20230504-RA-42 621012009 NCO026123-BIOS-20230504 1205406635 Method Blank (MB) 1205406636 Laboratory Control Sample (LCS) 1205406637 621012008(NC0026123-SO-20230504-RA-42) Matrix Spike (MS) 1205406638 621012008(NC0026123-SO-20230504-RA-42) Matrix Spike Duplicate (MSD) The samples in this SDG were analyzed on a "dry weight" basis. Page 126 of 129 SDG: 621012 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 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 1205406637 Nafion Byproduct 4 (PFESA BP4) 247* (NC0026123-SO-20230504-RA-42MS) (40%-160%) Nafion Byproduct 5 (PFESA BP5) 198* (40%-160%) Perfluoro(4-methoxybutanoic) acid 172* (PFMOBA) (47%-166%) 209* R-EVE (40%-160%) 1205406638 Nafion Byproduct 4 (PFESA BP4) 209* (NC0026123-SO-20230504-RA-42MSD) (40%-160%) Nafion Byproduct 5 (PFESA BP5) 219* (40%-160%) 187* 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 data are reported. Sample Analyte Value 1205406637MS and 1205406638MSD (NC0026123-SO-20230504-RA-42) Perfluoro(4-methoxybutanoic) acid (PFMOBA) RPD 39* (0%-30%) Internal Standard (ISTD) Acceptance Samples 1205406637 (NC0026123-SO-20230504-RA-42MS), 1205406638 (NC0026123-SO-20230504-RA-42MSD), 621012008 (NC0026123-SO-20230504-RA-42) and 621012009 Page 127 of 129 SDG: 621012 (NC0026123-BIOS-20230504) did not meet acceptance criteria for one or more internal standards. 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. Technical information Sample Dilutions The following samples and/or QC were diluted due to the Internal Standard Recovery not within the limits in the undiluted analysis. 1205406637(NC0026123-SO-20230504-RA-42MS), 1205406638 (NC0026123-SO-20230504-RA-42MSD), 621012008 (NC0026123-SO-20230504-RA-42) and 621012009 (NC0026123-BIOS-20230504). Analyte 621012 008 009 Fluorotelomer sulfonic acid 4:2 (4:2 FTS) 1X 25X Fluorotelomer sulfonic acid 6:2 (6:2 FTS) 1X 5X Fluorotelomer sulfonic acid 8:2 (8:2 FTS) I 5X I 125X 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. Radiochemistry Product: Dry Weight Preparation Method: ASTM D 2216 (Modified) Preparation Procedure: GL-OA-E-020 REV# 13 Preparation Batch: 2424989 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 621012007 NCO024210-BIOS-20230504 621012008 NC0026123-SO-20230504-RA-42 621012009 NCO026123-BIOS-20230504 1205396674 621012007(NC0024210-BIOS-20230504) Sample Duplicate (DUP) The samples in this SDG were analyzed on an "as received" basis. Data Summary There are no exceptions, anomalies or deviations from the specified methods. 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. Page 128 of 129 SDG: 621012 Certification Statement 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 129 of 129 SDG: 621012