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HomeMy WebLinkAbout633229_082123_1122 GEL DAQ Week of Aug 1-8, 2023 Regional Reanalysis September 26, 2023 Jim Bowyer NCDENR 4403 Reedy Creek Road North Carolina Department of Environment Raleigh, North Carolina 27607 Re: NCDAQ Work Order: 637079 Dear Jim Bowyer: GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on September 14, 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 Stone Project Manager Purchase Order: NCDAQ Enclosures Page 1 of 59 SDG: 637079 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: 637079 GEL Work Order: 637079 Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. The designation ND, if present, appears in the result column when the analyte concentration is not detected above the limit as defined in the 'U' qualifier above. This data report has been prepared and reviewed in accordance with GEL Laboratories LLC standard operating procedures. Please direct any questions to your Project Manager, Delaney Stone. 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 for Page 2 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041540ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23MB21.91 3.81 3.81 3.74 3.58 14.3 3.66 3.81 3.81 3.81 3.81 3.81 1.70 1.91 1.85 1.91 1.91 1.81 1.91 3.81 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: 637079001 Water 08-SEP-23 09:45 14-SEP-23 W080123-PGR NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.629 1.26 1.26 1.26 1.26 5.13 1.26 1.26 1.26 1.26 1.26 0.629 0.629 0.762 0.629 0.743 0.629 0.629 0.629 1.26 1U U U U U U U U U U U U U J 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 1.41 ND ND ND ND ND ND 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 Page 3 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041116 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23DK2 1.73 1.91 1.83 1.91 3.81 1.91 1.91 1.91 1.79 1.91 1.91 1.91 1.91 1.91 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 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: 637079001 W080123-PGR NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.629 0.762 0.667 0.629 1.26 0.629 0.762 0.762 0.629 0.629 0.762 0.629 0.629 0.629 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 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 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 Page 4 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 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 0.476 0.476 0.476 0.476 0.476 0.476 0.476 19.1 3.81 0.476 0.476 0.381 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: 637079001 W080123-PGR NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.191 0.191 0.191 0.191 0.191 0.191 0.191 7.62 1.26 0.191 0.191 0.191 UX UX UX JX 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 0.267 0.811 ND ND ND ND ND ND ND 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 0.0191 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 09/15/23 24930150855EF 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 637079001 W080123-PGR 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041558ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23MB21.98 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: 637079002 Water 08-SEP-23 10:45 14-SEP-23 W080123-RKR 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 0.772 0.654 0.654 0.654 1.31 1U U U U U U U U U U U U U J 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 1.84 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 7 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041131 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23DK2 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: 637079002 W080123-RKR 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 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 0.0198 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 8 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 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 19.8 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: 637079002 W080123-RKR 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 7.92 1.31 0.198 0.198 0.198 UX UX UX UX 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 0.872 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 09/15/23 24930150855EF 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 637079002 W080123-RKR 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041146ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23DK20.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 20.4 4.09 0.511 0.511 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: 637079003 Water 08-SEP-23 10:30 14-SEP-23 W080123-CDR NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 8.18 1.35 0.204 0.204 1UX J UX UX UX UX UX UX UX U U UX UX UX UX U UX JX UX UX UX 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 0.207 ND ND ND ND ND ND ND ND ND ND ND ND ND 1.48 ND ND 9.55 ND ND ND 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 Page 11 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041606 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23MB2 0.409 2.04 4.09 4.09 4.02 3.84 15.3 3.93 4.09 4.09 4.09 4.09 4.09 1.82 2.04 1.98 2.04 2.04 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: 637079003 W080123-CDR NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.204 0.675 1.35 1.35 1.35 1.35 5.50 1.35 1.35 1.35 1.35 1.35 0.675 0.675 0.818 0.675 0.797 0.675 2 UX U U U U U U U U U U U U U U U U (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 3.88 ND ND ND 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 Page 12 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 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 1.94 2.04 4.09 1.86 2.04 1.96 2.04 4.09 2.04 2.04 2.04 1.92 2.04 2.04 2.04 2.04 2.04 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: 637079003 W080123-CDR NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.675 0.675 1.35 0.675 0.818 0.716 0.675 1.35 0.675 0.818 0.818 0.675 0.675 0.818 0.675 0.675 0.675 U U U U U U U U U U U U U U U U U 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 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 09/15/23 24930150855EF 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 637079003 W080123-CDR 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041202ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23DK20.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 19.6 3.92 0.490 0.490 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: 637079004 Water 08-SEP-23 10:35 14-SEP-23 W080123-MHR 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 7.83 1.29 0.196 0.196 1UX J UX UX UX UX UX UX UX U U UX UX UX JX U UX UX UX UX UX 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 0.203 ND ND ND ND ND ND ND ND ND ND ND ND 0.357 1.22 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 15 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041615 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23MB2 0.392 1.96 3.92 3.92 3.85 3.68 14.7 3.76 3.92 3.92 3.92 3.92 3.92 1.74 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: 637079004 W080123-MHR NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.196 0.646 1.29 1.29 1.29 1.29 5.27 1.29 1.29 1.29 1.29 1.29 0.646 0.646 0.783 0.646 0.764 0.646 2 UX U U U U U U U U U U U U U U U U (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 3.10 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 16 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 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 1.78 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: 637079004 W080123-MHR NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.646 0.646 1.29 0.646 0.783 0.685 0.646 1.29 0.646 0.783 0.783 0.646 0.646 0.783 0.646 0.646 0.646 U U U U U U U U U U U U U U U U U 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 09/15/23 24930150855EF 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 637079004 W080123-MHR 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041217ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23DK20.491 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 19.6 3.93 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: 637079005 Water 08-SEP-23 08:40 14-SEP-23 W080123-MBR 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 7.86 1.30 0.196 0.196 1UX U UX UX UX UX UX UX UX U U UX UX UX UX U UX UX UX UX UX 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 0.738 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 19 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24929041624 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/19/23MB2 0.393 1.96 3.93 3.93 3.86 3.69 14.7 3.77 3.93 3.93 3.93 3.93 3.93 1.75 1.96 1.91 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: 637079005 W080123-MBR 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 0.786 0.648 0.766 0.648 2 UX U U U U U U U U U U U U U U U U (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 1.98 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 20 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 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 1.87 1.96 3.93 1.79 1.96 1.89 1.96 3.93 1.96 1.96 1.96 1.85 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: 637079005 W080123-MBR NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.648 0.648 1.30 0.648 0.786 0.687 0.648 1.30 0.648 0.786 0.786 0.648 0.648 0.786 0.648 0.648 0.648 U U U U U U U U U U U U U U U U U 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 09/15/23 24930150855EF 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 637079005 W080123-MBR 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24979261635ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/25/23JMB31.87 3.73 3.73 3.66 3.51 14.0 3.58 3.73 3.73 3.73 3.73 3.73 1.66 1.87 1.81 1.87 1.87 1.77 1.87 3.73 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: 637079006 Water 13-SEP-23 08:30 14-SEP-23 TBW080123-OO NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.616 1.23 1.23 1.23 1.23 5.02 1.23 1.23 1.23 1.23 1.23 0.616 0.616 0.746 0.616 0.728 0.616 0.616 0.616 1.23 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 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 Page 23 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24979261958 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 09/25/23DK2 1.70 1.87 1.79 1.87 3.73 1.87 1.87 1.87 1.75 1.87 1.87 1.87 1.87 1.87 0.466 0.466 0.466 0.466 0.466 0.466 0.466 0.466 0.466 0.466 0.466 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: 637079006 TBW080123-OO NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.616 0.746 0.653 0.616 1.23 0.616 0.746 0.746 0.616 0.616 0.746 0.616 0.616 0.616 0.187 0.187 0.187 0.187 0.187 0.187 0.187 0.187 0.187 0.187 0.187 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 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 Page 24 of 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 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 0.466 0.466 0.466 0.466 0.466 0.466 0.466 18.7 3.73 0.466 0.466 0.373 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: 637079006 TBW080123-OO NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.187 0.187 0.187 0.187 0.187 0.187 0.187 7.46 1.23 0.187 0.187 0.187 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 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 0.0187 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 09/25/23 24979250907EF 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 59 SDG: 637079 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: September 26, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 637079006 TBW080123-OO 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 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 September 26, 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 MB2 DK2 MB2 DK2 MB2 DK2 09/19/23 10:00 09/19/23 14:57 09/19/23 10:00 09/19/23 14:57 09/19/23 10:00 09/19/23 14:57 09/19/23 10:00 QC 19.2 19.8 16.9 18.1 20.9 20.0 21.4 16.4 21.4 18.1 18.6 17.3 23.5 NOM Sample Range (60%-158%) (59%-144%) (67%-144%) (58%-144%) (54%-128%) (52%-141%) (67%-154%) (73%-141%) (68%-135%) (56%-151%) (60%-153%) (60%-141%) (61%-148%) Qual X X X X QC1205518018 REC% 91 99 80 86 99 94 101 78 109 92 93 85 111 21.1 19.9 21.1 21.1 21.1 21.1 21.1 21.1 19.7 19.8 20.1 20.3 21.1 LCS 637079Workorder: North Carolina Department of Environment RPD/D% Page 1 of 28 Page 27 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 09/19/23 14:57 09/19/23 10:00 QC 19.6 19.7 18.7 22.1 13.8 17.2 13.7 17.4 19.8 16.6 17.5 14.9 18.4 18.0 17.8 NOM Sample Range (23%-155%) (57%-139%) (20%-154%) (59%-145%) (35%-138%) (63%-143%) (5%-158%) (5%-149%) (59%-145%) (48%-149%) (52%-148%) (58%-147%) (60%-151%) (62%-148%) (60%-144%) Qual X X X X X X X X X REC% 93 93 89 105 65 82 65 82 94 79 83 70 87 85 84 21.1 21.1 21.1 21.1 21.1 21.1 21.1 21.1 21.1 21.1 21.1 21.1 21.1 21.1 21.1 637079Workorder: RPD/D% Page 2 of 28 Page 28 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 MB2 09/19/23 10:00 09/19/23 14:57 09/19/23 10:00 09/19/23 14:57 QC 17.1 18.1 17.6 18.4 16.9 21.7 19.9 20.6 17.0 21.4 17.8 22.4 20.2 20.0 18.8 NOM Sample Range (58%-142%) (50%-150%) (52%-144%) (60%-149%) (70%-144%) (73%-151%) (58%-134%) (65%-145%) (57%-134%) (65%-137%) (20%-160%) (68%-138%) (71%-133%) (69%-144%) (67%-145%) Qual X X X REC% 81 86 83 87 91 103 98 98 83 101 84 112 96 95 97 21.1 21.1 21.1 21.1 18.7 21.1 20.4 21.1 20.5 21.1 21.1 20.1 21.1 21.1 19.3 637079Workorder: RPD/D% Page 3 of 28 Page 29 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 MB2 DK2 09/19/23 14:57 09/19/23 10:00 09/19/23 14:57 09/19/23 10:00 09/19/23 09:45 QC 22.2 21.0 21.1 14.4 20.3 21.1 21.3 18.7 20.5 18.5 20.5 22.1 19.6 22.7 ND NOM Sample Range (70%-138%) (64%-133%) (69%-133%) (35%-165%) (64%-134%) (65%-145%) (66%-139%) (67%-136%) (72%-143%) (49%-153%) (66%-138%) (58%-140%) (63%-135%) (5%-158%) Qual JX X UX QC1205518017 REC% 105 104 100 68 96 100 101 94 97 87 97 105 93 107 21.1 20.3 21.1 21.1 21.1 21.1 21.1 19.9 21.1 21.1 21.1 21.1 21.1 21.1 MB 637079Workorder: RPD/D% Page 4 of 28 Page 30 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 MB2 DK2 MB2 DK2 MB2 09/19/23 14:49 09/19/23 09:45 09/19/23 14:49 09/19/23 09:45 09/19/23 14:49 09/19/23 09:45 09/19/23 14:49 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual U U UX U U U UX U U U U UX U U U REC% 637079Workorder: RPD/D% Page 5 of 28 Page 31 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 09/19/23 14:49 09/19/23 09:45 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual U UX UX UX UX UX U U UX UX UX UX U UX UX REC% 637079Workorder: RPD/D% Page 6 of 28 Page 32 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 MB2 09/19/23 09:45 09/19/23 14:49 09/19/23 09:45 09/19/23 14:49 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 UX U U U U U U U REC% 637079Workorder: RPD/D% Page 7 of 28 Page 33 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 MB2 DK2 MB2 DK2 09/19/23 14:49 09/19/23 09:45 09/19/23 14:49 09/19/23 09:45 09/19/23 10:46 09/19/23 15:23 09/19/23 10:46 QC ND ND ND ND ND ND ND ND ND ND ND 70.6 45.0 155 39.3 NOM Sample 30.4 ND 122 3.67 Range (50%-145%) (42%-138%) (51%-159%) (50%-148%) Qual U U U U U U UX U U U UX X X QC1205518019 636709002 REC% 100 119 83 89 40.0 37.7 40.0 40.0 MS 637079Workorder: X U X RPD/D% Page 8 of 28 Page 34 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 MB2 DK2 MB2 DK2 09/19/23 15:23 09/19/23 10:46 09/19/23 15:23 09/19/23 10:46 09/19/23 15:23 09/19/23 10:46 QC 41.6 44.1 45.9 35.6 46.4 51.8 37.2 39.1 64.3 39.8 42.3 42.8 42.7 36.7 45.8 NOM Sample ND ND ND ND ND ND ND ND 13.4 ND ND ND ND ND 7.55 Range (44%-127%) (39%-138%) (62%-132%) (58%-157%) (54%-139%) (53%-151%) (50%-154%) (40%-152%) (61%-142%) (26%-138%) (38%-148%) (26%-139%) (40%-144%) (38%-133%) (40%-155%) Qual X X X X REC% 104 110 115 89 124 139 98 102 127 99 106 107 107 92 96 40.0 40.0 40.0 40.0 37.3 37.4 38.0 38.4 40.0 40.0 40.0 40.0 40.0 40.0 40.0 637079Workorder: U U U UX U U U U X U U U U UX X RPD/D% Page 9 of 28 Page 35 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 09/19/23 10:46 09/19/23 15:23 QC 320 78.5 40.9 32.4 37.2 50.9 59.3 54.0 50.3 35.5 64.2 81.3 28.3 37.6 81.2 NOM Sample 146 3.72 0.954 ND ND 16.5 27.7 14.7 13.4 ND 33.8 58.1 0.954 5.37 34.5 Range (45%-160%) (50%-150%) (61%-141%) (43%-156%) (50%-148%) (43%-160%) (45%-163%) (40%-162%) (38%-165%) (31%-150%) (50%-150%) (40%-182%) (19%-167%) (52%-147%) (57%-149%) Qual X X X X X X X X X REC% 435 187 100 81 93 86 79 98 92 88 76 58 68 91 117 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 35.4 40.0 637079Workorder: * * X X JX U U X X X X U X X J RPD/D% Page 10 of 28 Page 36 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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 MB2 DK2 MB2 09/19/23 15:23 09/19/23 10:46 09/19/23 15:23 QC 43.6 43.4 37.8 44.3 39.6 50.6 50.9 41.5 51.1 64.0 44.4 46.3 37.0 42.8 55.8 NOM Sample ND ND ND ND ND ND 12.9 ND 7.02 21.1 ND ND ND ND 7.12 Range (45%-136%) (44%-143%) (47%-138%) (45%-142%) (50%-150%) (56%-149%) (51%-149%) (32%-151%) (50%-148%) (50%-150%) (48%-138%) (54%-146%) (18%-140%) (49%-143%) (42%-150%) Qual X REC% 113 109 98 111 99 133 95 104 121 107 115 113 92 107 122 38.6 40.0 38.7 40.0 40.0 38.0 40.0 40.0 36.5 40.0 38.4 40.0 40.0 40.0 40.0 637079Workorder: U U U U UX U U U U U U RPD/D% Page 11 of 28 Page 37 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 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 MB2 DK2 MB2 DK2 MB2 DK2 MB2 09/19/23 15:23 09/19/23 10:46 09/19/23 15:23 09/19/23 10:46 09/19/23 11:01 09/19/23 15:32 09/19/23 11:01 09/19/23 15:32 QC 69.7 44.9 109 300 43.5 44.3 43.6 155 77.6 40.2 167 38.2 41.2 38.5 41.5 NOM Sample 23.1 1.49 65.1 310 ND ND ND 45.2 30.4 ND 122 3.67 ND ND ND Range (50%-151%) (55%-151%) (51%-146%) (32%-155%) (41%-148%) (41%-142%) (44%-141%) (45%-164%) (0%-30%) (0%-36%) (0%-28%) (0%-34%) (0%-39%) (0%-40%) (0%-28%) Qual X X X X QC1205518020 636709002 10 11 8 3 1 14 10 REC% 117 115 110 0 109 111 109 275 118 107 114 86 103 96 104 40.0 37.6 40.0 40.0 40.0 40.0 40.0 40.0 40.0 37.7 40.0 40.0 40.0 40.0 40.0 MSD 637079Workorder: * * J X U U U X X U X U U U RPD/D% Page 12 of 28 Page 38 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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) Nafion Byproduct 6 (PFESA BP6) 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 MB2 DK2 MB2 DK2 09/19/23 11:01 09/19/23 15:32 09/19/23 11:01 09/19/23 15:32 09/19/23 11:01 QC 39.5 42.2 35.9 39.8 38.8 68.9 38.6 38.8 37.6 38.4 34.3 46.6 367 90.1 46.3 NOM Sample ND ND ND ND ND 13.4 ND ND ND ND ND 7.55 146 3.72 0.954 Range (0%-31%) (0%-33%) (0%-39%) (0%-40%) (0%-44%) (0%-29%) (0%-42%) (0%-36%) (0%-40%) (0%-36%) (0%-33%) (0%-26%) (0%-32%) (0%-34%) (0%-30%) Qual X X X X X X X 10 9 36 7 1 7 3 8 13 11 7 2 14 14 12 REC% 99 113 96 105 101 139 97 97 94 96 86 98 553 216 113 40.0 37.3 37.4 38.0 38.4 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 637079Workorder: * * UX U U U U X U U U U UX X X X JX RPD/D% Page 13 of 28 Page 39 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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) Perfluorododecanesulfonic acid (PFDoS) 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 MB2 09/19/23 11:01 09/19/23 15:32 QC 35.2 37.2 53.2 68.0 58.6 54.7 36.5 68.6 86.6 27.2 38.4 78.7 40.3 43.0 34.7 NOM Sample ND ND 16.5 27.7 14.7 13.4 ND 33.8 58.1 0.954 5.37 34.5 ND ND ND Range (0%-33%) (0%-28%) (0%-44%) (0%-38%) (0%-41%) (0%-31%) (0%-46%) (0%-30%) (0%-41%) (0%-35%) (0%-27%) (0%-23%) (0%-36%) (0%-35%) (0%-35%) Qual X X X X X X 8 0 4 14 8 8 3 7 6 4 2 3 8 1 9 REC% 88 93 92 101 110 103 90 87 71 66 93 110 105 108 90 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 35.4 40.0 38.6 40.0 38.7 637079Workorder: U U X X X X U X X J U U U RPD/D% Page 14 of 28 Page 40 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904Batch 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) Perfluoropentanoic acid (PFPeA) 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 MB2 DK2 MB2 09/19/23 15:32 09/19/23 11:01 09/19/23 15:32 QC 46.5 40.8 45.3 46.9 41.3 45.9 63.9 42.4 42.5 36.7 41.0 51.2 64.8 39.3 101 NOM Sample ND ND ND 12.9 ND 7.02 21.1 ND ND ND ND 7.12 23.1 1.49 65.1 Range (0%-30%) (0%-30%) (0%-30%) (0%-26%) (0%-33%) (0%-31%) (0%-26%) (0%-35%) (0%-30%) (0%-44%) (0%-28%) (0%-31%) (0%-28%) (0%-31%) (0%-24%) Qual X 5 3 11 8 0 11 0 5 9 1 5 9 7 13 7 REC% 116 102 119 85 103 107 107 110 103 92 102 110 104 101 90 40.0 40.0 38.0 40.0 40.0 36.5 40.0 38.4 40.0 40.0 40.0 40.0 40.0 37.6 40.0 637079Workorder: U UX U U U U U U J RPD/D% Page 15 of 28 Page 41 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2492904 2497926 Batch Batch 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 Anlst Date Time DK2 MB2 DK2 DK2 JMB3 DK2 JMB3 DK2 JMB3 09/19/23 11:01 09/19/23 15:32 09/19/23 11:01 09/25/23 17:57 09/25/23 15:26 09/25/23 17:57 09/25/23 15:26 09/25/23 17:57 09/25/23 15:26 QC 329 41.4 44.0 41.8 171 23.7 20.4 21.6 21.5 21.0 22.3 22.9 18.8 21.0 NOM Sample 310 ND ND ND 45.2 Range (0%-34%) (0%-32%) (0%-35%) (0%-34%) (0%-35%) (60%-158%) (59%-144%) (67%-144%) (58%-144%) (54%-128%) (52%-141%) (67%-154%) (73%-141%) (68%-135%) Qual X X X X X QC1205526884 9 5 1 4 10 REC% 47 103 110 105 315 111 102 101 101 99 105 107 88 106 40.0 40.0 40.0 40.0 40.0 21.3 20.0 21.3 21.3 21.3 21.3 21.3 21.3 19.8 LCS 637079Workorder: * X U U U X RPD/D% Page 16 of 28 Page 42 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 09/25/23 15:26 09/25/23 17:57 09/25/23 15:26 09/25/23 17:57 QC 19.9 21.3 24.4 26.5 22.0 23.8 21.4 24.4 16.0 21.5 16.4 21.9 22.1 22.2 20.1 NOM Sample Range (56%-151%) (60%-153%) (60%-141%) (61%-148%) (23%-155%) (57%-139%) (20%-154%) (59%-145%) (35%-138%) (63%-143%) (5%-158%) (5%-149%) (59%-145%) (48%-149%) (52%-148%) Qual X X X X X X REC% 100 105 119 125 104 112 101 115 75 101 77 103 104 104 95 19.9 20.2 20.4 21.3 21.3 21.3 21.3 21.3 21.3 21.3 21.3 21.3 21.3 21.3 21.3 637079Workorder: RPD/D% Page 17 of 28 Page 43 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 09/25/23 17:57 09/25/23 15:26 09/25/23 17:57 QC 18.4 21.1 22.6 22.5 20.3 23.0 23.6 22.7 21.3 22.3 19.6 22.3 16.8 23.1 21.4 NOM Sample Range (58%-147%) (60%-151%) (62%-148%) (60%-144%) (58%-142%) (50%-150%) (52%-144%) (60%-149%) (70%-144%) (73%-151%) (58%-134%) (65%-145%) (57%-134%) (65%-137%) (20%-160%) Qual X X X X X X X REC% 86 99 106 106 96 108 111 107 113 105 96 105 82 109 101 21.3 21.3 21.3 21.3 21.3 21.3 21.3 21.3 18.8 21.3 20.5 21.3 20.6 21.3 21.3 637079Workorder: RPD/D% Page 18 of 28 Page 44 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 09/25/23 15:26 09/25/23 17:57 09/25/23 15:26 QC 21.8 22.7 26.3 23.2 23.0 19.0 23.9 12.8 23.5 21.0 22.3 25.1 22.7 22.9 23.5 NOM Sample Range (68%-138%) (71%-133%) (69%-144%) (67%-145%) (70%-138%) (64%-133%) (69%-133%) (35%-165%) (64%-134%) (65%-145%) (66%-139%) (67%-136%) (72%-143%) (49%-153%) (66%-138%) Qual X REC% 108 107 123 120 108 93 112 60 110 99 105 125 107 108 111 20.2 21.3 21.3 19.4 21.3 20.4 21.3 21.3 21.3 21.3 21.3 20.0 21.3 21.3 21.3 637079Workorder: RPD/D% Page 19 of 28 Page 45 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 09/25/23 15:26 09/25/23 17:57 09/25/23 18:12 09/25/23 15:35 09/25/23 18:12 09/25/23 15:35 09/25/23 18:12 09/25/23 15:35 QC 22.6 24.1 25.9 21.0 19.4 19.7 20.4 19.6 21.4 22.7 20.0 22.1 22.4 18.4 24.3 NOM Sample Range (58%-140%) (63%-135%) (5%-158%) (0%-30%) (0%-27%) (0%-30%) (0%-27%) (0%-28%) (0%-30%) (0%-26%) (0%-24%) (0%-26%) (0%-32%) (0%-32%) (0%-36%) Qual X X X X QC1205526885 12 5 9 5 7 4 1 6 5 12 14 0 REC% 106 113 122 103 101 96 100 96 104 111 98 116 117 95 124 21.3 21.3 21.3 20.5 19.3 20.5 20.5 20.5 20.5 20.5 20.5 19.1 19.1 19.5 19.7 LCSD 637079Workorder: RPD/D% Page 20 of 28 Page 46 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 09/25/23 18:12 09/25/23 15:35 09/25/23 18:12 QC 26.0 22.1 25.3 18.2 23.6 15.7 19.8 16.1 20.2 20.5 19.9 20.1 16.8 20.2 20.9 NOM Sample Range (0%-24%) (0%-27%) (0%-27%) (0%-36%) (0%-27%) (0%-28%) (0%-23%) (0%-45%) (0%-40%) (0%-26%) (0%-27%) (0%-35%) (0%-40%) (0%-39%) (0%-36%) Qual X X X X X X X X X 2 0 6 16 3 2 8 2 8 8 11 0 9 5 8 REC% 127 108 124 89 115 77 97 79 99 100 97 98 82 98 102 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 637079Workorder: RPD/D% Page 21 of 28 Page 47 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 09/25/23 18:12 09/25/23 15:35 09/25/23 18:12 09/25/23 15:35 QC 21.1 19.6 22.1 20.0 20.9 21.5 22.2 21.5 23.3 16.3 21.3 18.4 22.1 22.1 23.9 NOM Sample Range (0%-27%) (0%-29%) (0%-30%) (0%-31%) (0%-25%) (0%-35%) (0%-20%) (0%-30%) (0%-31%) (0%-32%) (0%-26%) (0%-30%) (0%-40%) (0%-23%) (0%-26%) Qual X X X X 6 4 4 17 8 1 0 9 4 3 8 15 2 3 10 REC% 103 96 108 98 102 118 109 109 114 82 104 90 114 108 117 20.5 20.5 20.5 20.5 20.5 18.1 20.5 19.8 20.5 19.8 20.5 20.5 19.5 20.5 20.5 637079Workorder: RPD/D% Page 22 of 28 Page 48 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 09/25/23 15:35 09/25/23 18:12 09/25/23 15:35 09/25/23 18:12 QC 21.1 22.0 20.7 24.3 14.1 21.7 23.6 21.1 20.9 22.8 21.9 21.9 23.8 23.2 20.6 NOM Sample Range (0%-27%) (0%-27%) (0%-27%) (0%-25%) (0%-39%) (0%-26%) (0%-25%) (0%-27%) (0%-40%) (0%-25%) (0%-26%) (0%-26%) (0%-31%) (0%-30%) (0%-26%) Qual X X 9 4 9 1 9 8 11 5 18 0 4 7 5 3 23 REC% 113 107 105 119 69 106 115 103 109 111 107 107 116 113 101 18.7 20.5 19.7 20.5 20.5 20.5 20.5 20.5 19.2 20.5 20.5 20.5 20.5 20.5 20.5 637079Workorder: RPD/D% Page 23 of 28 Page 49 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) 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 DK2 JMB3 DK2 JMB3 09/25/23 17:42 09/25/23 15:18 09/25/23 17:42 09/25/23 15:18 09/25/23 17:42 09/25/23 15:18 09/25/23 17:42 09/25/23 15:18 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual UX U U UX U U U UX U U U U UX U U QC1205526883 REC% MB 637079Workorder: RPD/D% Page 24 of 28 Page 50 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 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 09/25/23 15:18 09/25/23 17:42 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual U U UX UX UX UX UX U U UX UX UX UX U UX REC% 637079Workorder: RPD/D% Page 25 of 28 Page 51 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) 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 09/25/23 17:42 09/25/23 15:18 09/25/23 17:42 09/25/23 15:18 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual UX U U U U U U U UX U U U U U U REC% 637079Workorder: RPD/D% Page 26 of 28 Page 52 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2497926Batch 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 Anlst Date Time JMB3 DK2 JMB3 DK2 09/25/23 15:18 09/25/23 17:42 09/25/23 15:18 09/25/23 17:42 QC ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual U U U U U U U UX U U U UX The Qualifiers in this report are defined as follows: REC% 637079Workorder: U J P C B 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. RPD/D% Notes: Page 27 of 28 Page 53 of 59 SDG: 637079 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Parmname Page 28 of 28 Units Anlst Date TimeQCNOMSampleRangeQualREC% 637079Workorder: E A X N H ** < > h R ^ D N/A ND NJ JNX UJ Q N1 Y N J 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 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 54 of 59 SDG: 637079 Page 55 of 59 SDG: 637079 Page 56 of 59 SDG: 637079 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 88-0651 42D0904046 2940 SC00012 PH-0169 2567.01 E87156 P330-15-00283, P330-15-00253 SC00012 967 SC00012 SC00012 200029 C-SC-01 E-10332 90129 90129 LA024 03046 (AI33904) 2019020 270 M-SC012 Letter 9976 SC00012 NE-OS-26-13 SC000122023-4 2054 SC002 SC00012 11501 233 45709 R-158 2022-160 68-00485 SC00012 10120002 9255651 10120001 TN 02934 T104704235-23-21 SC000122022-37 VT87156 460202 C780 List of current GEL Certifications as of 26 September 2023 Page 57 of 59 SDG: 637079 LCMSMS-PFC Technical Case Narrative NC Dept Environmental Quality SDG #: 637079 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: 2492904 and 2493015 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 637079001 W080123-PGR 637079002 W080123-RKR 637079003 W080123-CDR 637079004 W080123-MHR 637079005 W080123-MBR 1205518017 Method Blank (MB) 1205518018 Laboratory Control Sample (LCS) 1205518019 636709002(NonSDG) Matrix Spike (MS) 1205518020 636709002(NonSDG) Matrix Spike Duplicate (MSD) The samples in this SDG were analyzed on an "as received" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Quality Control (QC) Information Matrix Spike (MS) Recovery Statement The MS or MSD (See Below) recovered spiked analytes outside of the established acceptance limits. As similar recoveries were displayed in the MS and MSD, the failures were attributed to sample matrix interference and the data were reported. Sample Analyte Value 1205518019 (Non SDG 636709002MS)Nafion Byproduct 4 (PFESA BP4)435* (45%-160%) Nafion Byproduct 5 (PFESA BP5)187* (50%-150%) Perfluoropropanoic acid (PFPrA)0* (32%-155%) R-EVE 275* (45%-164%) 1205518020 (Non SDG 636709002MSD)Nafion Byproduct 4 (PFESA BP4)553* (45%-160%) Nafion Byproduct 5 (PFESA BP5)216* (50%-150%) R-EVE 315* (45%-164%) Miscellaneous Information Page 58 of 59 SDG: 637079 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: 2497926 and 2497925 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 637079006 TBW080123-OO 1205526883 Method Blank (MB) 1205526884 Laboratory Control Sample (LCS) 1205526885 Laboratory Control Sample Duplicate (LCSD) The samples in this SDG were analyzed on an "as received" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Quality Control (QC) Information Laboratory Control Sample Duplicate (LCSD) An LCSD was used in place of matrix QC due to limited sample volume. 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 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 59 of 59 SDG: 637079