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HomeMy WebLinkAbout646655_120523_0904 Week of Nov 7-14, 2023 Nearfield & MB December 05, 2023 Jim Bowyer NCDENR 4403 Reedy Creek Road North Carolina Department of Environment Raleigh, North Carolina 27607 Re: NCDAQ Work Order: 646655 Dear Jim Bowyer: GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on November 28, 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, PM_SIGN_HERE Delaney Stonesmith Project Manager Purchase Order: NCDAQ Enclosures Page 1 of 99 SDG: 646655 Olivia Olsen for Reviewed by USER_SIGN_HERE GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report NCDQ001 NC Dept Environmental Quality Client SDG: 646655 GEL Work Order: 646655 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 Stonesmith. 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 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 h Preparation or preservation holding time was exceeded for Page 2 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051556ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB31.92 3.84 3.84 3.77 3.61 14.4 3.68 3.84 3.84 3.84 3.84 3.84 1.71 1.92 1.86 1.92 1.92 1.82 1.92 3.84 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655001 Water 14-NOV-23 09:00 28-NOV-23 W110723-MB NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.633 1.27 1.27 1.27 1.27 5.16 1.27 1.27 1.27 1.27 1.27 0.633 0.633 0.768 0.633 0.748 0.633 0.633 0.633 1.27 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 Page 3 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051438 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.75 1.92 1.84 1.92 3.84 1.92 1.92 1.92 1.80 1.92 1.92 1.92 1.92 1.92 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655001 W110723-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.633 0.768 0.672 0.633 1.27 0.633 0.768 0.768 0.633 0.633 0.768 0.633 0.633 0.633 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 Page 4 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.480 0.480 0.480 0.480 0.480 0.480 0.480 9.60 3.84 0.480 0.480 0.384 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655001 W110723-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.192 0.192 0.192 0.192 0.192 0.192 0.192 3.84 1.27 0.192 0.192 0.192 UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh UXh UXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 5 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655001 W110723-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 6 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051509ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK20.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 9.81 3.92 0.491 0.491 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655002 Water 14-NOV-23 09:00 28-NOV-23 D110723-MB NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 3.92 1.30 0.196 0.196 1UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 Page 7 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051605 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB3 0.392 1.96 3.92 3.92 3.85 3.69 14.7 3.77 3.92 3.92 3.92 3.92 3.92 1.75 1.96 1.90 1.96 1.96 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655002 D110723-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.196 0.648 1.30 1.30 1.30 1.30 5.28 1.30 1.30 1.30 1.30 1.30 0.648 0.648 0.785 0.648 0.765 0.648 2 UXh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 Page 8 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 1.86 1.96 3.92 1.79 1.96 1.88 1.96 3.92 1.96 1.96 1.96 1.84 1.96 1.96 1.96 1.96 1.96 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655002 D110723-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.648 0.648 1.30 0.648 0.785 0.687 0.648 1.30 0.648 0.785 0.785 0.648 0.648 0.785 0.648 0.648 0.648 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 9 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655002 D110723-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 10 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051524ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK20.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 0.509 10.2 4.07 0.509 0.509 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655003 Water 14-NOV-23 11:00 28-NOV-23 W110723-02 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 4.07 1.34 0.203 0.203 1UXh h UXh Xh UXh UXh UXh UXh UXh Uh Uh JXh JXh Xh Xh Uh Uh UXh Xh UXh JXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 0.861 ND 1.54 ND ND ND ND ND ND ND 0.231 0.464 1.30 0.903 ND ND ND 11.5 ND 0.224 ND 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 Page 11 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051614 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB3 0.407 2.03 4.07 4.07 4.00 3.83 15.3 3.91 4.07 4.07 4.07 4.07 4.07 1.81 2.03 1.97 2.03 2.03 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655003 W110723-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.203 0.671 1.34 1.34 1.34 1.34 5.47 1.34 1.34 1.34 1.34 1.34 0.671 0.671 0.814 0.671 0.793 0.671 2 Xh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.686 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 Page 12 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 1.93 2.03 4.07 1.85 2.03 1.95 2.03 4.07 2.03 2.03 2.03 1.91 2.03 2.03 2.03 2.03 2.03 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655003 W110723-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.671 0.671 1.34 0.671 0.814 0.712 0.671 1.34 0.671 0.814 0.814 0.671 0.671 0.814 0.671 0.671 0.671 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 13 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655003 W110723-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 14 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051539ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK20.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 0.528 10.6 4.23 0.528 0.528 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655004 Water 14-NOV-23 11:00 28-NOV-23 D110723-02 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 4.23 1.40 0.211 0.211 1UXh h UXh Xh UXh UXh UXh UXh UXh Uh Uh JXh JXh Xh Xh Uh Uh UXh UXh UXh UXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 1.95 ND 0.761 ND ND ND ND ND ND ND 0.363 0.356 0.878 0.580 ND ND ND ND ND ND ND 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 Page 15 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051623 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB3 0.423 2.11 4.23 4.23 4.15 3.97 15.9 4.06 4.23 4.23 4.23 4.23 4.23 1.88 2.11 2.05 2.11 2.11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655004 D110723-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.211 0.698 1.40 1.40 1.40 1.40 5.69 1.40 1.40 1.40 1.40 1.40 0.698 0.698 0.846 0.698 0.824 0.698 2 Xh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.488 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 Page 16 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 2.01 2.11 4.23 1.92 2.11 2.03 2.11 4.23 2.11 2.11 2.11 1.99 2.11 2.11 2.11 2.11 2.11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655004 D110723-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.698 0.698 1.40 0.698 0.846 0.740 0.698 1.40 0.698 0.846 0.846 0.698 0.698 0.846 0.698 0.698 0.698 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 0.0211 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 17 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655004 D110723-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 18 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051632ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB32.03 4.05 4.05 3.98 3.81 15.2 3.89 4.05 4.05 4.05 4.05 4.05 1.80 2.03 1.97 2.03 2.03 1.93 2.03 4.05 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655005 Water 14-NOV-23 11:23 28-NOV-23 W110723-19 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.669 1.34 1.34 1.34 1.34 5.45 1.34 1.34 1.34 1.34 1.34 0.669 0.669 0.811 0.669 0.790 0.669 0.669 0.669 1.34 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND 1.51 ND ND ND ND ND ND 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 Page 19 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051554 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.84 2.03 1.95 2.03 4.05 2.03 2.03 2.03 1.90 2.03 2.03 2.03 2.03 2.03 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655005 W110723-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.669 0.811 0.709 0.669 1.34 0.669 0.811 0.811 0.669 0.669 0.811 0.669 0.669 0.669 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh Jh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.221 ND ND ND ND ND ND ND ND ND 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 Page 20 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.507 0.507 0.507 0.507 0.507 0.507 0.507 10.1 4.05 0.507 0.507 0.405 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655005 W110723-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.203 0.203 0.203 0.203 0.203 0.203 0.203 4.05 1.34 0.203 0.203 0.203 JXh Xh Xh Xh Uh Uh UXh Xh UXh UXh UXh JXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.342 0.543 0.890 0.588 ND ND ND 10.3 ND ND ND 0.245 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 0.0203 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 21 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655005 W110723-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 22 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051641ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB31.98 3.96 3.96 3.89 3.72 14.9 3.80 3.96 3.96 3.96 3.96 3.96 1.76 1.98 1.92 1.98 1.98 1.88 1.98 3.96 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655006 Water 14-NOV-23 11:23 28-NOV-23 D110723-19 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.654 1.31 1.31 1.31 1.31 5.33 1.31 1.31 1.31 1.31 1.31 0.654 0.654 0.792 0.654 0.773 0.654 0.654 0.654 1.31 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 Page 23 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051609 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.80 1.98 1.90 1.98 3.96 1.98 1.98 1.98 1.86 1.98 1.98 1.98 1.98 1.98 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655006 D110723-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.654 0.792 0.693 0.654 1.31 0.654 0.792 0.792 0.654 0.654 0.792 0.654 0.654 0.654 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 Page 24 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.495 0.495 0.495 0.495 0.495 0.495 0.495 9.91 3.96 0.495 0.495 0.396 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655006 D110723-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.198 0.198 0.198 0.198 0.198 0.198 0.198 3.96 1.31 0.198 0.198 0.198 UXh Xh Xh JXh Uh Uh UXh UXh UXh UXh UXh UXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND 0.586 0.917 0.412 ND ND ND ND ND ND ND ND 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 25 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655006 D110723-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 26 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051651ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB32.00 4.00 4.00 3.93 3.76 15.0 3.84 4.00 4.00 4.00 4.00 4.00 1.78 2.00 1.94 2.00 2.00 1.90 2.00 4.00 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655007 Water 14-NOV-23 11:39 28-NOV-23 W110723-32 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.661 1.32 1.32 1.32 1.32 5.39 1.32 1.32 1.32 1.32 1.32 0.661 0.661 0.801 0.661 0.781 0.661 0.661 0.661 1.32 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND 1.34 ND ND ND ND ND ND 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 Page 27 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051625 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.82 2.00 1.92 2.00 4.00 2.00 2.00 2.00 1.88 2.00 2.00 2.00 2.00 2.00 0.501 0.501 0.501 0.501 0.501 0.501 0.501 0.501 0.501 0.501 0.501 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655007 W110723-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.661 0.801 0.701 0.661 1.32 0.661 0.801 0.801 0.661 0.661 0.801 0.661 0.661 0.661 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh Jh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.302 ND ND ND ND ND ND ND ND ND 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 Page 28 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.501 0.501 0.501 0.501 0.501 0.501 0.501 10.0 4.00 0.501 0.501 0.400 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655007 W110723-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.200 0.200 0.200 0.200 0.200 0.200 0.200 4.00 1.32 0.200 0.200 0.200 Xh Xh Xh Xh Uh Uh UXh Xh UXh JXh UXh JXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.512 0.763 1.52 0.817 ND ND ND 10.4 ND 0.481 ND 0.313 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 29 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655007 W110723-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 30 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051640ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK20.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 0.495 9.90 3.96 0.495 0.495 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655008 Water 14-NOV-23 11:39 28-NOV-23 D110723-32 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 0.198 3.96 1.31 0.198 0.198 1UXh h UXh JXh UXh UXh UXh UXh UXh Uh Uh UXh JXh Xh Xh Uh Uh UXh UXh UXh UXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 1.14 ND 0.289 ND ND ND ND ND ND ND ND 0.469 1.19 0.954 ND ND ND ND ND ND ND 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 Page 31 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051700 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB3 0.396 1.98 3.96 3.96 3.89 3.72 14.8 3.80 3.96 3.96 3.96 3.96 3.96 1.76 1.98 1.92 1.98 1.98 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655008 D110723-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.198 0.653 1.31 1.31 1.31 1.31 5.33 1.31 1.31 1.31 1.31 1.31 0.653 0.653 0.792 0.653 0.772 0.653 2 Xh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.740 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 Page 32 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 1.88 1.98 3.96 1.80 1.98 1.90 1.98 3.96 1.98 1.98 1.98 1.86 1.98 1.98 1.98 1.98 1.98 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655008 D110723-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.653 0.653 1.31 0.653 0.792 0.693 0.653 1.31 0.653 0.792 0.792 0.653 0.653 0.792 0.653 0.653 0.653 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 0.0198 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 33 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655008 D110723-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 34 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051709ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB31.95 3.91 3.91 3.84 3.68 14.7 3.75 3.91 3.91 3.91 3.91 3.91 1.74 1.95 1.90 1.95 1.95 1.86 1.95 3.91 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655009 Water 14-NOV-23 11:50 28-NOV-23 W110723-33 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.645 1.29 1.29 1.29 1.29 5.26 1.29 1.29 1.29 1.29 1.29 0.645 0.645 0.782 0.645 0.762 0.645 0.645 0.645 1.29 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND 1.63 ND ND ND ND ND ND 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 Page 35 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051655 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.78 1.95 1.88 1.95 3.91 1.95 1.95 1.95 1.84 1.95 1.95 1.95 1.95 1.95 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655009 W110723-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.645 0.782 0.684 0.645 1.29 0.645 0.782 0.782 0.645 0.645 0.782 0.645 0.645 0.645 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh h UXh Xh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 15.5 ND 3.32 ND ND ND ND ND ND ND 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 Page 36 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.489 0.489 0.489 0.489 0.489 0.489 0.489 9.77 3.91 0.489 0.489 0.391 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655009 W110723-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.195 0.195 0.195 0.195 0.195 0.195 0.195 3.91 1.29 0.195 0.195 0.195 Xh Xh Xh Xh Uh Uh JXh Xh UXh Xh JXh Xh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 1.80 3.22 5.20 2.66 ND ND 0.209 10.5 ND 1.16 0.315 0.860 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 0.0195 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 37 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655009 W110723-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 38 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131358ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB31.93 3.85 3.85 3.78 3.62 14.4 3.70 3.85 3.85 3.85 3.85 3.85 1.71 1.93 1.87 1.93 1.93 1.83 1.93 3.85 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655010 Water 14-NOV-23 11:50 28-NOV-23 D110723-33 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.636 1.27 1.27 1.27 1.27 5.18 1.27 1.27 1.27 1.27 1.27 0.636 0.636 0.770 0.636 0.751 0.636 0.636 0.636 1.27 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 Page 39 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316130935 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.75 1.93 1.85 1.93 3.85 1.93 1.93 1.93 1.81 1.93 1.93 1.93 1.93 1.93 0.482 0.482 0.482 0.482 0.482 0.482 0.482 0.482 0.482 0.482 0.482 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655010 D110723-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.636 0.770 0.674 0.636 1.27 0.636 0.770 0.770 0.636 0.636 0.770 0.636 0.636 0.636 0.193 0.193 0.193 0.193 0.193 0.193 0.193 0.193 0.193 0.193 0.193 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh h UXh Xh UXh UXh JXh JXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 6.50 ND 3.70 ND ND 0.270 0.311 ND ND ND 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 Page 40 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.482 0.482 0.482 0.482 0.482 0.482 0.482 9.63 3.85 0.482 0.482 0.385 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655010 D110723-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.193 0.193 0.193 0.193 0.193 0.193 0.193 3.85 1.27 0.193 0.193 0.193 Xh Xh Xh Xh Uh Uh JXh UXh UXh Xh JXh Xh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 2.28 3.49 4.15 2.03 ND ND 0.432 ND ND 0.934 0.292 0.565 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 0.0193 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316120817EF Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 41 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655010 D110723-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 42 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131416ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB31.90 3.79 3.79 3.73 3.57 14.2 3.64 3.79 3.79 3.79 3.79 3.79 1.69 1.90 1.84 1.90 1.90 1.80 1.90 3.79 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655011 Water 14-NOV-23 12:23 28-NOV-23 W110723-21 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.626 1.25 1.25 1.25 1.25 5.10 1.25 1.25 1.25 1.25 1.25 0.626 0.626 0.759 0.626 0.740 0.626 0.626 0.626 1.25 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND 1.20 ND ND ND ND ND ND 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 Page 43 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316130950 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.73 1.90 1.82 1.90 3.79 1.90 1.90 1.90 1.78 1.90 1.90 1.90 1.90 1.90 0.474 0.474 0.474 0.474 0.474 0.474 0.474 0.474 0.474 0.474 0.474 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655011 W110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.626 0.759 0.664 0.626 1.25 0.626 0.759 0.759 0.626 0.626 0.759 0.626 0.626 0.626 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh h UXh Xh JXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.76 ND 1.63 0.279 ND ND ND ND ND ND 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 Page 44 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.474 0.474 0.474 0.474 0.474 0.474 0.474 9.49 3.79 0.474 0.474 0.379 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655011 W110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.190 0.190 0.190 0.190 0.190 0.190 0.190 3.79 1.25 0.190 0.190 0.190 Xh Xh Xh Xh Uh Uh UXh Xh UXh Xh UXh Xh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 2.69 2.14 2.85 1.55 ND ND ND 10.9 ND 6.51 ND 0.540 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 0.0190 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316120817EF Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 45 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655011 W110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 46 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131425ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB31.96 3.92 3.92 3.85 3.69 14.7 3.77 3.92 3.92 3.92 3.92 3.92 1.75 1.96 1.90 1.96 1.96 1.86 1.96 3.92 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655012 Water 14-NOV-23 12:23 28-NOV-23 D110723-21 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.647 1.29 1.29 1.29 1.29 5.28 1.29 1.29 1.29 1.29 1.29 0.647 0.647 0.785 0.647 0.765 0.647 0.647 0.647 1.29 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 Page 47 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131021 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.79 1.96 1.88 1.96 3.92 1.96 1.96 1.96 1.84 1.96 1.96 1.96 1.96 1.96 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655012 D110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.647 0.785 0.687 0.647 1.29 0.647 0.785 0.785 0.647 0.647 0.785 0.647 0.647 0.647 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh h UXh Xh Xh UXh Xh JXh JXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 4.07 ND 11.0 1.06 ND 0.706 0.243 0.241 ND ND 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 Page 48 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.491 0.491 0.491 0.491 0.491 0.491 0.491 9.81 3.92 0.491 0.491 0.392 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655012 D110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.196 0.196 0.196 0.196 0.196 0.196 0.196 3.92 1.29 0.196 0.196 0.196 Xh Xh Xh Xh Uh Uh JXh JXh UXh Xh Xh Xh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 18.5 10.7 7.04 3.19 ND ND 0.473 4.26 ND 22.2 0.568 1.67 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316120817EF Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 49 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655012 D110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 50 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131036ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK20.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 0.512 10.2 4.10 0.512 0.512 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655013 Water 14-NOV-23 12:23 28-NOV-23 W110723-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 0.205 4.10 1.35 0.205 0.205 1UXh h UXh Xh UXh UXh UXh UXh UXh Uh Uh Xh Xh Xh Xh Uh Uh JXh Xh UXh Xh JXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 2.10 ND 13.4 ND ND ND ND ND ND ND 1.63 1.91 1.83 1.19 ND ND 0.364 12.5 ND 1.13 0.241 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 Page 51 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131434 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB3 0.410 2.05 4.10 4.10 4.02 3.85 15.4 3.93 4.10 4.10 4.10 4.10 4.10 1.82 2.05 1.99 2.05 2.05 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655013 W110723-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.205 0.676 1.35 1.35 1.35 1.35 5.51 1.35 1.35 1.35 1.35 1.35 0.676 0.676 0.819 0.676 0.799 0.676 2 Xh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" 1.20 ND ND ND ND ND ND ND ND ND ND ND ND ND 1.26 ND ND ND 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 Page 52 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 1.95 2.05 4.10 1.86 2.05 1.97 2.05 4.10 2.05 2.05 2.05 1.93 2.05 2.05 2.05 2.05 2.05 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655013 W110723-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.676 0.676 1.35 0.676 0.819 0.717 0.676 1.35 0.676 0.819 0.819 0.676 0.676 0.819 0.676 0.676 0.676 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 0.0205 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316120817EF Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 53 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655013 W110723-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 54 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131051ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK20.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 0.530 10.6 4.24 0.530 0.530 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655014 Water 14-NOV-23 12:23 28-NOV-23 D110723-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 0.212 4.24 1.40 0.212 0.212 1UXh h UXh Xh UXh UXh JXh UXh UXh Uh Uh Xh Xh Xh Xh Uh Uh JXh UXh UXh Xh JXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 3.02 ND 6.89 ND ND 0.351 ND ND ND ND 1.96 4.29 6.86 3.78 ND ND 0.337 ND ND 1.62 0.272 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 Page 55 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131443 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB3 0.424 2.12 4.24 4.24 4.17 3.99 15.9 4.07 4.24 4.24 4.24 4.24 4.24 1.89 2.12 2.06 2.12 2.12 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655014 D110723-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.212 0.700 1.40 1.40 1.40 1.40 5.71 1.40 1.40 1.40 1.40 1.40 0.700 0.700 0.848 0.700 0.827 0.700 2 Xh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.796 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 Page 56 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 2.02 2.12 4.24 1.93 2.12 2.04 2.12 4.24 2.12 2.12 2.12 1.99 2.12 2.12 2.12 2.12 2.12 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655014 D110723-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.700 0.700 1.40 0.700 0.848 0.742 0.700 1.40 0.700 0.848 0.848 0.700 0.700 0.848 0.700 0.700 0.700 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 0.0212 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316120817EF Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 57 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655014 D110723-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 58 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131106ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK20.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 0.518 10.4 4.15 0.518 0.518 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655015 Water 14-NOV-23 12:23 28-NOV-23 FB110723-21 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 0.207 4.15 1.37 0.207 0.207 1UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 Page 59 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316131452 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB3 0.415 2.07 4.15 4.15 4.07 3.90 15.5 3.98 4.15 4.15 4.15 4.15 4.15 1.84 2.07 2.01 2.07 2.07 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655015 FB110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.207 0.684 1.37 1.37 1.37 1.37 5.58 1.37 1.37 1.37 1.37 1.37 0.684 0.684 0.829 0.684 0.808 0.684 2 UXh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 Page 60 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 1.97 2.07 4.15 1.89 2.07 1.99 2.07 4.15 2.07 2.07 2.07 1.95 2.07 2.07 2.07 2.07 2.07 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655015 FB110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.684 0.684 1.37 0.684 0.829 0.725 0.684 1.37 0.684 0.829 0.829 0.684 0.684 0.829 0.684 0.684 0.684 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 0.0207 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316120817EF Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 61 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655015 FB110723-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 62 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051718ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/29/23JMB31.99 3.98 3.98 3.91 3.74 14.9 3.82 3.98 3.98 3.98 3.98 3.98 1.77 1.99 1.93 1.99 1.99 1.89 1.99 3.98 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655016 Water 27-NOV-23 08:30 28-NOV-23 TB112723-00 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.656 1.31 1.31 1.31 1.31 5.35 1.31 1.31 1.31 1.31 1.31 0.656 0.656 0.795 0.656 0.775 0.656 0.656 0.656 1.31 1U U U U U U U U U U U U U U U U U U U U 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 Page 63 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 25316051710 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 11/30/23DK2 1.81 1.99 1.91 1.99 3.98 1.99 1.99 1.99 1.87 1.99 1.99 1.99 1.99 1.99 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655016 TB112723-00 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.656 0.795 0.696 0.656 1.31 0.656 0.795 0.795 0.656 0.656 0.795 0.656 0.656 0.656 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 2 U U U U U U U U U U U U U U UX U UX UX UX UX UX UX UX U U (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 Page 64 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.497 0.497 0.497 0.497 0.497 0.497 0.497 9.94 3.98 0.497 0.497 0.398 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655016 TB112723-00 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.199 0.199 0.199 0.199 0.199 0.199 0.199 3.98 1.31 0.199 0.199 0.199 UX UX UX UX U U UX UX UX UX UX UX acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 11/29/23 25316020813RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 65 of 99 SDG: 646655 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: December 5, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 646655016 TB112723-00 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: Lc/LC: Critical Level PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Column headers are defined as follows: DF: Dilution Factor DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration Page 66 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 4- (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) Hydro-EVE Parmname Jim BowyerContact: NCDENR 4403 Reedy Creek Road Raleigh, North Carolina December 5, 2023Report Date: Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time DK2 JMB3 DK2 JMB3 DK2 JMB3 DK2 11/30/23 13:53 11/29/23 15:20 11/30/23 13:53 11/29/23 15:20 11/30/23 13:53 11/29/23 15:20 11/30/23 13:53 QC 20.4 16.8 20.5 20.2 21.0 21.3 22.1 19.9 17.8 14.1 21.4 20.5 20.0 NOM Sample Range (57%-151%) (59%-138%) (62%-140%) (62%-141%) (58%-133%) (56%-145%) (69%-147%) (69%-139%) (68%-137%) (54%-148%) (61%-150%) (57%-147%) (66%-146%) Qual X X X X QC1205585911 REC% 104 91 104 103 107 108 112 101 97 77 115 109 102 19.7 18.5 19.7 19.7 19.7 19.7 19.7 19.7 18.3 18.4 18.7 18.9 19.7 LCS 646655Workorder: North Carolina Department of Environment RPD/D% Page 1 of 25 Page 67 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 11/29/23 15:20 11/30/23 13:53 QC 19.4 16.2 20.4 20.8 18.6 19.9 15.3 17.7 19.4 18.0 20.6 18.1 19.9 20.2 20.4 NOM Sample Range (40%-152%) (60%-139%) (41%-150%) (64%-144%) (40%-131%) (60%-139%) (21%-138%) (18%-146%) (64%-140%) (55%-144%) (60%-145%) (57%-143%) (63%-147%) (66%-143%) (64%-140%) Qual X X X X X X X X X REC% 99 83 104 106 95 101 78 90 99 91 105 92 101 103 104 19.7 19.7 19.7 19.7 19.7 19.7 19.7 19.7 19.7 19.7 19.7 19.7 19.7 19.7 19.7 646655Workorder: RPD/D% Page 2 of 25 Page 68 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanesulfonic acid (PFDoS) Perfluorododecanoic acid (PFDOA) Perfluoroethoxypropionic acid (EVE) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time DK2 JMB3 DK2 JMB3 11/30/23 13:53 11/29/23 15:20 11/30/23 13:53 11/29/23 15:20 QC 19.9 20.3 19.3 21.2 18.5 19.5 17.6 19.9 16.8 19.4 18.2 18.5 20.4 21.9 18.3 NOM Sample Range (62%-142%) (56%-144%) (57%-140%) (64%-147%) (70%-139%) (77%-146%) (62%-133%) (68%-140%) (55%-135%) (69%-139%) (34%-140%) (67%-141%) (71%-138%) (67%-139%) (63%-142%) Qual X X X REC% 101 103 98 108 106 99 93 101 89 99 92 99 104 111 102 19.7 19.7 19.7 19.7 17.4 19.7 19.0 19.7 19.0 19.7 19.7 18.7 19.7 19.7 17.9 646655Workorder: RPD/D% Page 3 of 25 Page 69 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 11/29/23 15:20 11/30/23 13:53 11/29/23 15:20 11/30/23 13:53 11/30/23 14:08 QC 19.6 18.1 19.1 19.3 21.1 18.7 22.4 19.1 19.4 19.9 22.1 27.0 21.1 18.6 25.3 NOM Sample Range (71%-139%) (67%-134%) (71%-136%) (38%-148%) (68%-137%) (68%-141%) (70%-138%) (63%-141%) (71%-139%) (54%-156%) (70%-138%) (61%-141%) (68%-139%) (25%-144%) (0%-28%) Qual X X X QC1205585912 21 REC% 100 96 97 98 107 95 114 103 98 101 112 137 107 94 126 19.7 18.9 19.7 19.7 19.7 19.7 19.7 18.5 19.7 19.7 19.7 19.7 19.7 19.7 20.1 LCSD 646655Workorder: RPD/D% Page 4 of 25 Page 70 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 4- (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) Hydro-EVE N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 JMB3 DK2 JMB3 11/29/23 15:29 11/30/23 14:08 11/29/23 15:29 11/30/23 14:08 11/29/23 15:29 11/30/23 14:08 11/29/23 15:29 QC 18.4 20.4 20.0 21.3 20.7 19.9 18.8 19.2 15.6 22.8 22.1 19.6 18.6 18.0 20.0 NOM Sample Range (0%-27%) (0%-27%) (0%-24%) (0%-28%) (0%-32%) (0%-25%) (0%-25%) (0%-26%) (0%-34%) (0%-36%) (0%-35%) (0%-26%) (0%-31%) (0%-31%) (0%-34%) Qual X X X 9 0 1 1 3 10 6 7 10 6 7 2 4 10 2 REC% 97 101 100 106 103 99 94 102 83 120 115 98 93 90 99 18.9 20.1 20.1 20.1 20.1 20.1 20.1 18.7 18.8 19.1 19.3 20.1 20.1 20.1 20.1 646655Workorder: RPD/D% Page 5 of 25 Page 71 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid (PFMOAA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 11/29/23 15:29 11/30/23 14:08 QC 21.5 16.8 18.4 14.6 14.9 20.2 18.7 19.5 16.9 18.4 18.6 20.2 19.9 19.2 18.9 NOM Sample Range (0%-30%) (0%-28%) (0%-23%) (0%-41%) (0%-35%) (0%-26%) (0%-30%) (0%-31%) (0%-34%) (0%-33%) (0%-30%) (0%-24%) (0%-25%) (0%-25%) (0%-28%) Qual X X X X X X X X X X X 3 10 8 5 17 4 4 5 7 8 8 1 0 5 2 REC% 107 84 91 73 74 100 93 97 84 92 93 101 99 96 94 20.1 20.1 20.1 20.1 20.1 20.1 20.1 20.1 20.1 20.1 20.1 20.1 20.1 20.1 20.1 646655Workorder: RPD/D% Page 6 of 25 Page 72 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanesulfonic acid (PFDoS) Perfluorododecanoic acid (PFDOA) Perfluoroethoxypropionic acid (EVE) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time DK2 JMB3 DK2 JMB3 11/30/23 14:08 11/29/23 15:29 11/30/23 14:08 11/29/23 15:29 QC 19.6 17.3 19.9 17.6 17.9 17.8 22.2 17.9 18.4 19.5 26.3 17.1 19.8 19.4 19.8 NOM Sample Range (0%-23%) (0%-31%) (0%-21%) (0%-25%) (0%-26%) (0%-30%) (0%-24%) (0%-28%) (0%-33%) (0%-26%) (0%-21%) (0%-33%) (0%-24%) (0%-26%) (0%-25%) Qual X 8 7 2 0 11 5 14 1 1 5 18 7 1 7 4 REC% 98 97 99 91 89 91 111 89 97 97 131 93 99 101 99 20.1 17.8 20.1 19.4 20.1 19.4 20.1 20.1 19.1 20.1 20.1 18.3 20.1 19.3 20.1 646655Workorder: RPD/D% Page 7 of 25 Page 73 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 JMB3 DK2 11/29/23 15:29 11/30/23 14:08 11/29/23 15:29 11/30/23 14:08 11/30/23 13:38 11/29/23 15:10 11/30/23 13:38 QC 19.6 20.5 20.4 19.5 17.5 19.5 18.6 19.4 19.7 22.5 19.4 ND ND ND ND NOM Sample Range (0%-35%) (0%-22%) (0%-25%) (0%-24%) (0%-37%) (0%-23%) (0%-24%) (0%-23%) (0%-27%) (0%-27%) (0%-30%) Qual X X UX U U UX QC1205585910 1 3 9 14 9 1 7 13 31 7 4 REC% 98 102 102 97 93 97 93 97 98 112 97 20.1 20.1 20.1 20.1 18.9 20.1 20.1 20.1 20.1 20.1 20.1 MB 646655Workorder: * RPD/D% Page 8 of 25 Page 74 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 4- (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) Hydro-EVE N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 JMB3 DK2 11/29/23 15:10 11/30/23 13:38 11/29/23 15:10 11/30/23 13:38 11/29/23 15:10 11/30/23 13:38 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual U U U UX U U U U UX U U U U UX UX REC% 646655Workorder: RPD/D% Page 9 of 25 Page 75 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time DK2 JMB3 11/30/23 13:38 11/29/23 15:10 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual UX UX UX U U UX UX UX UX U UX UX U U U REC% 646655Workorder: RPD/D% Page 10 of 25 Page 76 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605Batch Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanesulfonic acid (PFDoS) Perfluorododecanoic acid (PFDOA) Perfluoroethoxypropionic acid (EVE) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 11/29/23 15:10 11/30/23 13:38 11/29/23 15:10 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual U U U U UX U U U U U U U U U U REC% 646655Workorder: RPD/D% Page 11 of 25 Page 77 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531605 2531613 Batch Batch Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 DK2 JMB3 DK2 JMB3 11/29/23 15:10 11/30/23 13:38 11/29/23 15:10 11/30/23 13:38 11/30/23 07:49 11/29/23 12:54 11/30/23 07:49 11/29/23 12:54 QC ND ND ND ND ND ND ND ND 21.7 17.8 20.3 20.0 20.2 21.9 NOM Sample Range (57%-151%) (59%-138%) (62%-140%) (62%-141%) (58%-133%) (56%-145%) Qual U U U UX U U U UX X X QC1205585919 REC% 107 93 100 99 100 108 20.3 19.1 20.3 20.3 20.3 20.3 LCS 646655Workorder: RPD/D% Page 12 of 25 Page 78 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 4- (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) Hydro-EVE N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 JMB3 DK2 11/29/23 12:54 11/30/23 07:49 11/29/23 12:54 11/30/23 07:49 11/29/23 12:54 11/30/23 07:49 QC 21.1 20.9 19.7 18.8 17.4 21.6 19.9 20.9 22.3 21.5 22.4 17.6 19.5 15.1 16.0 NOM Sample Range (69%-147%) (69%-139%) (68%-137%) (54%-148%) (61%-150%) (57%-147%) (66%-146%) (40%-152%) (60%-139%) (41%-150%) (64%-144%) (40%-131%) (60%-139%) (21%-138%) (18%-146%) Qual X X X X X X REC% 104 103 104 99 90 111 98 103 110 106 110 86 96 74 79 20.3 20.3 18.9 19.0 19.3 19.5 20.3 20.3 20.3 20.3 20.3 20.3 20.3 20.3 20.3 646655Workorder: RPD/D% Page 13 of 25 Page 79 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Nafion Byproduct 6 (PFESA BP6) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time DK2 JMB3 11/30/23 07:49 11/29/23 12:54 QC 19.3 18.4 20.5 19.0 19.8 18.9 21.1 20.8 20.2 19.3 21.7 17.3 20.2 18.9 21.0 NOM Sample Range (64%-140%) (55%-144%) (60%-145%) (57%-143%) (63%-147%) (66%-143%) (64%-140%) (62%-142%) (56%-144%) (57%-140%) (64%-147%) (70%-139%) (77%-146%) (62%-133%) (68%-140%) Qual X X X X X X X REC% 95 91 101 94 97 93 104 103 99 95 107 96 100 96 103 20.3 20.3 20.3 20.3 20.3 20.3 20.3 20.3 20.3 20.3 20.3 18.0 20.3 19.6 20.3 646655Workorder: RPD/D% Page 14 of 25 Page 80 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Perfluorododecanesulfonic acid (PFDoS) Perfluorododecanoic acid (PFDOA) Perfluoroethoxypropionic acid (EVE) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 11/29/23 12:54 11/30/23 07:49 11/29/23 12:54 QC 18.7 25.2 17.4 20.0 21.0 24.6 19.0 21.2 17.8 24.4 21.9 21.2 19.3 20.9 20.2 NOM Sample Range (55%-135%) (69%-139%) (34%-140%) (67%-141%) (71%-138%) (67%-139%) (63%-142%) (71%-139%) (67%-134%) (71%-136%) (38%-148%) (68%-137%) (68%-141%) (70%-138%) (63%-141%) Qual X REC% 95 124 86 104 103 121 102 104 91 120 108 104 95 103 106 19.7 20.3 20.3 19.3 20.3 20.3 18.5 20.3 19.5 20.3 20.3 20.3 20.3 20.3 19.1 646655Workorder: RPD/D% Page 15 of 25 Page 81 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 4- (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 JMB3 DK2 JMB3 DK2 JMB3 11/29/23 12:54 11/30/23 07:49 11/29/23 12:54 11/30/23 07:49 11/30/23 08:04 11/29/23 13:03 11/30/23 08:04 11/29/23 13:03 11/30/23 08:04 11/29/23 13:03 QC 20.6 20.1 23.5 23.5 22.2 16.3 23.6 17.5 20.4 21.0 18.0 22.6 19.0 21.4 17.6 NOM Sample Range (71%-139%) (54%-156%) (70%-138%) (61%-141%) (68%-139%) (25%-144%) (0%-28%) (0%-27%) (0%-27%) (0%-24%) (0%-28%) (0%-32%) (0%-25%) (0%-25%) (0%-26%) Qual X X X X X QC1205585920 8 2 1 5 12 3 11 2 11 REC% 102 99 115 116 109 80 117 92 101 104 89 112 94 106 93 20.3 20.3 20.3 20.3 20.3 20.3 20.2 19.0 20.2 20.2 20.2 20.2 20.2 20.2 18.8 LCSD 646655Workorder: RPD/D% Page 16 of 25 Page 82 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) Hydro-EVE N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 11/29/23 13:03 11/30/23 08:04 11/29/23 13:03 11/30/23 08:04 QC 15.0 19.1 18.7 20.5 21.7 19.7 22.3 20.7 18.5 19.9 17.3 20.2 21.3 19.2 20.6 NOM Sample Range (0%-34%) (0%-36%) (0%-35%) (0%-26%) (0%-31%) (0%-31%) (0%-34%) (0%-30%) (0%-28%) (0%-23%) (0%-41%) (0%-35%) (0%-26%) (0%-30%) (0%-31%) Qual X X X X X X 23 10 14 3 3 12 4 8 5 2 14 23 10 4 1 REC% 79 100 97 101 107 98 110 102 92 98 86 100 106 95 102 18.9 19.2 19.4 20.2 20.2 20.2 20.2 20.2 20.2 20.2 20.2 20.2 20.2 20.2 20.2 646655Workorder: RPD/D% Page 17 of 25 Page 83 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanesulfonic acid (PFDoS) Perfluorododecanoic acid (PFDOA) Perfluoroethoxypropionic acid (EVE) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time DK2 JMB3 DK2 11/30/23 08:04 11/29/23 13:03 11/30/23 08:04 QC 19.8 19.8 20.6 22.2 20.5 21.7 21.4 23.2 18.5 20.8 17.5 17.8 18.8 25.1 18.8 NOM Sample Range (0%-34%) (0%-33%) (0%-30%) (0%-24%) (0%-25%) (0%-25%) (0%-28%) (0%-23%) (0%-31%) (0%-21%) (0%-25%) (0%-26%) (0%-30%) (0%-24%) (0%-28%) Qual X X X X X X X 4 0 8 5 2 7 10 7 7 3 8 17 1 0 8 REC% 98 98 102 110 101 107 106 115 103 103 90 88 96 124 93 20.2 20.2 20.2 20.2 20.2 20.2 20.2 20.2 17.9 20.2 19.5 20.2 19.6 20.2 20.2 646655Workorder: RPD/D% Page 18 of 25 Page 84 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 11/29/23 13:03 11/30/23 08:04 11/29/23 13:03 QC 18.8 20.2 24.4 19.8 21.0 19.2 22.3 20.9 23.1 19.1 19.1 20.2 21.1 21.1 21.0 NOM Sample Range (0%-33%) (0%-26%) (0%-21%) (0%-33%) (0%-24%) (0%-26%) (0%-25%) (0%-35%) (0%-22%) (0%-25%) (0%-24%) (0%-37%) (0%-23%) (0%-24%) (0%-23%) Qual X 6 4 1 4 1 7 9 5 9 1 9 0 2 5 11 REC% 98 100 121 107 104 99 110 103 114 94 95 106 104 105 104 19.2 20.2 20.2 18.4 20.2 19.4 20.2 20.2 20.2 20.2 20.2 19.0 20.2 20.2 20.2 646655Workorder: RPD/D% Page 19 of 25 Page 85 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 4- (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 JMB3 DK2 JMB3 11/29/23 13:03 11/30/23 08:04 11/30/23 07:34 11/29/23 12:45 11/30/23 07:34 11/29/23 12:45 11/30/23 07:34 11/29/23 12:45 QC 21.2 23.9 20.4 ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample Range (0%-27%) (0%-27%) (0%-30%) Qual X UX U U UX U U U UX U U U U QC1205585918 10 8 23 REC% 105 118 101 20.2 20.2 20.2 MB 646655Workorder: RPD/D% Page 20 of 25 Page 86 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Hydro-EVE N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time DK2 JMB3 DK2 11/30/23 07:34 11/29/23 12:45 11/30/23 07:34 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual UX U U U U UX UX UX UX UX U U UX UX UX REC% 646655Workorder: RPD/D% Page 21 of 25 Page 87 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanesulfonic acid (PFDoS) Perfluorododecanoic acid (PFDOA) Perfluoroethoxypropionic acid (EVE) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time DK2 JMB3 DK2 JMB3 11/30/23 07:34 11/29/23 12:45 11/30/23 07:34 11/29/23 12:45 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual UX U UX UX U U U U U U U UX U U U REC% 646655Workorder: RPD/D% Page 22 of 25 Page 88 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2531613Batch Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time JMB3 DK2 JMB3 DK2 11/29/23 12:45 11/30/23 07:34 11/29/23 12:45 11/30/23 07:34 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual U U U U U U U U U U UX U U U UX REC% 646655Workorder: RPD/D% Notes: Page 23 of 25 Page 89 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Parmname Units Anlst Date TimeQCNOMSampleRangeQual The Qualifiers in this report are defined as follows: REC% 646655Workorder: U J P C B E A X N H ** < > h R ^ D N/A ND NJ JNX UJ Q N1 Y N J I Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. Value is estimated Organics--The concentrations between the primary and confirmation columns/detectors is >40% different. For HPLC, the difference is >70%. Analyte has been confirmed by GC/MS analysis The target analyte was detected in the associated blank. Concentration of the target analyte exceeds the instrument calibration range The TIC is a suspected aldol-condensation product Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier 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 Analytical holding time was exceeded Analyte is a surrogate compound Result is less than value reported Result is greater than value reported Preparation or preservation holding time was exceeded Sample results are rejected RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. Results are reported from a diluted aliquot of the sample RPD or %Recovery limits do not apply. Analyte concentration is not detected above the detection limit Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Non Calibrated Compound Compound cannot be extracted One or more quality control criteria have not been met. Refer to the applicable narrative or DER. See case narrative QC Samples were not spiked with this compound 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 See case narrative for an explanation Analyte does not meet the Ion Abundance Ratio and should be considered an estimated concentration. RPD/D% Page 24 of 25 Page 90 of 99 SDG: 646655 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Parmname Page 25 of 25 Units Anlst Date TimeQCNOMSampleRangeQualREC% 646655Workorder: N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. 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. RPD/D% Page 91 of 99 SDG: 646655 Page 92 of 99 SDG: 646655 Page 93 of 99 SDG: 646655 Page 94 of 99 SDG: 646655 State Certification Alabama Alaska Alaska Drinking Water Arkansas CLIA California Colorado Connecticut DoD ELAP/ ISO17025 A2LA Florida NELAP Foreign Soils Permit Georgia Georgia SDWA Hawaii Idaho Illinois NELAP Indiana Kansas NELAP Kentucky SDWA Kentucky Wastewater Louisiana Drinking Water Louisiana NELAP Maine Maryland Massachusetts Massachusetts PFAS Approv Michigan Mississippi Nebraska Nevada New Hampshire NELAP New Jersey NELAP New Mexico New York NELAP North Carolina North Carolina SDWA North Dakota Oklahoma Pennsylvania NELAP Puerto Rico S. Carolina Radiochem Sanitation Districts of L South Carolina Chemistry Tennessee Texas NELAP Utah NELAP Vermont Virginia NELAP Washington 42200 17-018 SC00012 88-00651 42D0904046 2940 SC00012 PH-0169 2567.01 E87156 P330-15-00283, P330-15-00253 SC00012 967 SC00012 SC00012 200029 C-SC-01 E-10332 KY90129 KY90129 LA024 03046 (AI33904) 2023019 270 M-SC012 Letter 9976 SC00012 NE-OS-26-13 SC000122024-05 2054 SC002 SC00012 11501 233 45709 R-158 2023-152 68-00485 SC00012 10120002 9255651 10120001 TN 02934 T104704235-23-21 SC000122023-38 VT87156 460202 C780 List of current GEL Certifications as of 05 December 2023 Page 95 of 99 SDG: 646655 LCMSMS-PFC Technical Case Narrative NC Dept Environmental Quality SDG #: 646655 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: 2531605 and 2531602 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 646655001 W110723-MB 646655002 D110723-MB 646655003 W110723-02 646655004 D110723-02 646655005 W110723-19 646655006 D110723-19 646655007 W110723-32 646655008 D110723-32 646655009 W110723-33 646655016 TB112723-00 1205585910 Method Blank (MB) 1205585911 Laboratory Control Sample (LCS) 1205585912 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. 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 Page 96 of 99 SDG: 646655 1205585911 (LCS) and 1205585912 (LCSD)Perfluorotridecanoic Acid (PFTriA)RPD 31* (0%-27%) Technical Information Holding Time Specifications Samples (See Below) did not meet holding time requirements due to insufficient time remaining to meet the hold times. More than half the hold time had expired upon receipt. Sample Analyte Value 646655001 (W110723-MB) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655002 (D110723-MB) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655003 (W110723-02) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655004 (D110723-02) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655005 (W110723-19) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655006 (D110723-19) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655007 (W110723-32) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655008 (D110723-32) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655009 (W110723-33) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 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: 2531613 and 2531612 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 646655010 D110723-33 646655011 W110723-21 646655012 D110723-21 646655013 W110723-21C 646655014 D110723-21C 646655015 FB110723-21 Page 97 of 99 SDG: 646655 1205585918 Method Blank (MB) 1205585919 Laboratory Control Sample (LCS) 1205585920 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. Technical Information Holding Time Specifications Samples (See Below) did not meet holding time requirements due to insufficient time remaining to meet the hold times. More than half the hold time had expired upon receipt. Sample Analyte Value 646655010 (D110723-33)Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655011 (W110723-21) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655012 (D110723-21)Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655013 (W110723-21C) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655014 (D110723-21C) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 646655015 (FB110723-21) Received 28-NOV-23, within holding, prepped 29-NOV-23, out of holding 28-NOV-23 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. Certification Statement Page 98 of 99 SDG: 646655 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 99 of 99 SDG: 646655