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HomeMy WebLinkAbout618763_050223_1240 GEL DAQ Week of April 4-11, 2023 Regional May 02, 2023 Jim Bowyer NCDENR 4403 Reedy Creek Road North Carolina Department of Environment Raleigh, North Carolina 27607 Re: NCDAQ Work Order: 618763 Dear Jim Bowyer: GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on April 18, 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. Samples received out of hold618763001(W110822-02), 618763002(D110822-02), 618763003(W110822-MB), 618763004(D110822-MB), 618763005(W110822-19), 618763006(D110822-19), 618763007(W110822-32), 618763008(D110822-32), 618763009(W110822-33), 618763010(D110822-33), 618763011(W110822-21), 618763012(D110822-21), 618763013(W110822-21C), 618763014(D110822-21C) and 618763022(FB110822-32). Sample ID on the Chain of Custody did not match the Sample ID on the container received. and 618763004(D110822-MB). 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 138 SDG: 618763 Jordan Melton 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: 618763 GEL Work Order: 618763 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 h Preparation or preservation holding time was exceeded for Page 2 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411853ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23RR30.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 20.3 4.06 0.508 0.508 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: 618763001 Water 16-NOV-22 12:30 18-APR-23 W110822-02 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 8.13 1.34 0.203 0.203 1UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh hUX hUX hUX hUX hU hU hUX hUX hUX hUX hUX 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 0.0203 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 3 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411527 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 0.406 2.03 4.06 4.06 3.99 3.82 15.2 3.90 4.06 4.06 4.06 4.06 4.06 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: 618763001 W110822-02 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 0.813 0.671 0.793 0.671 2 hUX Uh hU hU hU hU hU hU hU hU hU hU hU hU hU hU hU hU (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 0.0203 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 4 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 4.06 1.85 2.03 1.95 2.03 4.06 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: 618763001 W110822-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.671 0.671 1.34 0.671 0.813 0.711 0.671 1.34 0.671 0.813 0.813 0.671 0.671 0.813 0.671 0.671 0.671 hU hU hU hU hU hU hU hU hU hU h hU hU hU hU hU hU 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 10.7 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 04/21/23 24170360906RR4 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763001 W110822-02 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 6 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411536ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB31.91 3.83 3.83 3.76 3.60 14.4 3.68 3.83 3.83 3.83 3.83 3.83 1.70 1.91 1.86 1.91 1.91 1.82 1.91 3.83 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: 618763002 Water 16-NOV-22 12:30 18-APR-23 D110822-02 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.632 1.26 1.26 1.26 1.26 5.15 1.26 1.26 1.26 1.26 1.26 0.632 0.632 0.766 0.632 0.747 0.632 0.632 0.632 1.26 1Uh Uh Uh hU hU hU Uh hU hU hU hU hU hU hJ hU hU hU hU hU hU 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 0.989 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 7 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411501 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/27/23RR3 1.74 1.91 1.84 1.91 3.83 1.91 1.91 1.91 1.80 1.91 1.91 1.91 1.91 1.91 0.479 0.479 0.479 0.479 0.479 0.479 0.479 0.479 0.479 0.479 0.479 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: 618763002 D110822-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.632 0.766 0.670 0.632 1.26 0.632 0.766 0.766 0.632 0.632 0.766 0.632 0.632 0.632 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 2 hU hU hU hU hU hU hU hU hU hU hU hU hU hU UXh h UXh JXh 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 3.82 ND 0.455 0.202 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 8 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 0.479 0.479 0.479 0.479 0.479 0.479 0.479 19.1 3.83 0.479 0.479 0.383 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: 618763002 D110822-02 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 7.66 1.26 0.191 0.191 0.191 hJX hX hX hX hU hU hUX hUX hJX hJX hJX hX 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" 0.380 0.727 2.73 2.87 ND ND ND ND 2.64 0.362 0.258 1.21 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 04/21/23 24170360906RR4 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763002 D110822-02 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 10 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411923ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23RR30.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 0.476 19.1 3.81 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 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763003 Water 16-NOV-22 10:05 18-APR-23 W110822-MB NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 7.62 1.26 0.191 0.191 1UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh Uh hU hUX hUX hUX hUX hUX 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 0.0191 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 11 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411545 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 0.381 1.91 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 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: 618763003 W110822-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.191 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 2 hUX Uh Uh hU Uh Uh Uh hU hU hU hU hU hU hU hU hU hU hU (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 0.0191 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 12 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 1.81 1.91 3.81 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 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: 618763003 W110822-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.629 0.629 1.26 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 hU hU hU hU hU hU hU hU hU hU h hU hU hU hU hU hU 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 2.44 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 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24170360906RR4 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763003 W110822-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 14 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 2417041 2417041 1340 1938 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/23/23 04/21/23 JMB3 RR3 19.2 20.4 20.4 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 0.509 20.4 5 5 5 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: 618763004 Water 16-NOV-22 10:05 18-APR-23 D110822-MB NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 6.73 6.73 6.73 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 8.15 1 2 Uh Uh Uh UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh hU hU hUX hUX Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) 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) 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 0.0204 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 15 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411553 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 4.08 0.509 0.509 0.408 2.04 4.08 4.08 4.00 15.3 3.91 4.08 4.08 4.08 4.08 4.08 1.81 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: 618763004 D110822-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 1.35 0.204 0.204 0.204 0.673 1.35 1.35 1.35 5.48 1.35 1.35 1.35 1.35 1.35 0.673 0.673 0.815 3 hUX hUX hUX hUX Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh hJ 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) 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 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) 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 0.882 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 16 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 ng/L 1.98 2.04 2.04 1.94 2.04 1.85 2.04 1.96 2.04 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 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763004 D110822-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.673 0.795 0.673 0.673 0.673 0.673 0.815 0.713 0.673 0.673 0.815 0.815 0.673 0.673 0.815 0.673 0.673 0.673 hU hU hU hU hU hU hU hU hU hU hU h hU hU hU hU hU hU Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) 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 3.18 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 0.0204 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24170360906RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 17 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763004 D110822-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 18 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411611ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB31.96 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 1.90 1.96 1.96 1.87 1.96 3.93 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: 618763005 Water 16-NOV-22 12:45 18-APR-23 W110822-19 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 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 0.766 0.648 0.648 0.648 1.30 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 0.976 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 19 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411954 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23RR3 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 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: 618763005 W110822-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 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 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 2 hU hU hU hU Uh hU hU h hU hU hU hU hU hU UXh h UXh JXh 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 2.25 ND ND ND ND ND ND ND 2.30 ND 0.360 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 0.0196 0.0196 0.0196 Page 20 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 19.6 3.93 0.491 0.491 0.393 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: 618763005 W110822-19 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 7.85 1.30 0.196 0.196 0.196 JXh Xh Xh Xh Uh hU hUX hUX hJX hJX hUX hX 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" 0.257 0.773 1.89 2.05 ND ND ND ND 1.34 0.404 ND 0.448 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 04/21/23 24170360906RR4 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763005 W110822-19 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170412009ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23RR30.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 19.9 3.98 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 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763006 Water 16-NOV-22 12:45 18-APR-23 D110822-19 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 7.95 1.31 0.199 0.199 1UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh Uh hU hUX hUX hUX hUX hUX 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 0.0199 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 23 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411620 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 0.398 1.99 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 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: 618763006 D110822-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.199 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 0.776 0.656 2 hUX 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 0.0199 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 24 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 1.89 1.99 3.98 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 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: 618763006 D110822-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.656 0.656 1.31 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 Uh Uh Uh Uh Uh Uh Uh Uh hU hU hU hU hU Uh Uh hU hU 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 0.0199 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 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24170360906RR4 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763006 D110822-19 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170412024ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23RR30.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 0.477 19.1 3.82 0.477 0.477 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: 618763007 Water 16-NOV-22 13:00 18-APR-23 W110822-32 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 0.191 7.63 1.26 0.191 0.191 1UXh h UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh JXh Xh Xh Uh Uh UXh UXh UXh hJX hUX 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 2.01 ND ND ND ND ND ND ND ND ND ND 0.233 1.01 1.38 ND ND ND ND ND 0.259 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 Page 27 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411629 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 0.382 1.91 3.82 3.82 3.75 3.59 14.3 3.66 3.82 3.82 3.82 3.82 3.82 1.70 1.91 1.85 1.91 1.91 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: 618763007 W110822-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.191 0.630 1.26 1.26 1.26 1.26 5.13 1.26 1.26 1.26 1.26 1.26 0.630 0.630 0.763 0.630 0.744 0.630 2 hJX 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" 0.298 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 Page 28 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 1.81 1.91 3.82 1.74 1.91 1.83 1.91 3.82 1.91 1.91 1.91 1.79 1.91 1.91 1.91 1.91 1.91 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: 618763007 W110822-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.630 0.630 1.26 0.630 0.763 0.668 0.630 1.26 0.630 0.763 0.763 0.630 0.630 0.763 0.630 0.630 0.630 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh h 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 4.91 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 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24170360906RR4 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763007 W110822-32 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 2417041 2417041 1349 1638 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/23/23 04/21/23 JMB3 JMB3 18.4 1.96 3.92 3.92 3.85 14.7 3.76 3.92 3.92 3.92 3.92 3.92 1.74 1.96 1.90 1.96 1.96 1.86 1.96 3.92 5 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: 618763008 Water 16-NOV-22 13:00 18-APR-23 D110822-32 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 6.46 0.646 1.29 1.29 1.29 5.27 1.29 1.29 1.29 1.29 1.29 0.646 0.646 0.784 0.646 0.764 0.646 0.646 0.646 1.29 1 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Uh Fluorotelomer sulfonic acid 4:2 (4:2 FTS) 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 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 1.33 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 31 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170412054 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23RR3 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 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 0.490 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 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763008 D110822-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.646 0.784 0.686 0.646 1.29 0.646 0.784 0.784 0.646 0.646 0.784 0.646 0.646 0.646 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 3 Uh Uh Uh Uh Uh Uh Uh Jh 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 1.58 ND ND ND ND ND ND ND 8.22 ND 0.708 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 0.0196 0.0196 0.0196 Page 32 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 0.490 0.490 0.490 0.490 0.490 0.490 0.490 19.6 3.92 0.490 0.490 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: 618763008 D110822-32 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 7.84 1.29 0.196 0.196 0.196 Xh Xh Xh Xh Uh Uh UXh JXh Xh hJX hX hX 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" 1.11 2.63 10.9 3.64 ND ND ND 11.1 3.93 0.470 2.54 15.5 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 04/21/23 24170360906RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 33 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763008 D110822-32 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411647ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB31.94 3.88 3.88 3.81 3.65 14.6 3.73 3.88 3.88 3.88 3.88 3.88 1.73 1.94 1.88 1.94 1.94 1.84 1.94 3.88 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: 618763009 Water 16-NOV-22 13:10 18-APR-23 W110822-33 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.641 1.28 1.28 1.28 1.28 5.22 1.28 1.28 1.28 1.28 1.28 0.641 0.641 0.777 0.641 0.757 0.641 0.641 0.641 1.28 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 1.17 ND ND ND ND ND ND 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 Page 35 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170412110 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23RR3 1.77 1.94 1.86 1.94 3.88 1.94 1.94 1.94 1.83 1.94 1.94 1.94 1.94 1.94 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 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: 618763009 W110822-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.641 0.777 0.680 0.641 1.28 0.641 0.777 0.777 0.641 0.641 0.777 0.641 0.641 0.641 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 2 Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Uh UXh h UXh JXh UXh UXh UXh 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 1.32 ND ND ND ND ND ND ND 3.68 ND 0.435 ND ND ND 0.201 ND ND ND 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 Page 36 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 0.485 0.485 0.485 0.485 0.485 0.485 0.485 19.4 3.88 0.485 0.485 0.388 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: 618763009 W110822-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.194 0.194 0.194 0.194 0.194 0.194 0.194 7.77 1.28 0.194 0.194 0.194 JXh Xh Xh Xh Uh Uh JXh UXh JXh hX hJX hX 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" 0.388 0.971 2.83 3.23 ND ND 0.337 ND 1.79 0.509 0.233 0.662 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24170360906RR4 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763009 W110822-33 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 2417041 2417041 1358 1516 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/23/23 04/27/23 JMB3 RR3 18.4 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 0.489 19.6 3.91 0.489 5 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: 618763010 Water 16-NOV-22 13:10 18-APR-23 D110822-33 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 6.46 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 1 2 hU UXh h UXh Xh JXh UXh UXh JXh UXh Uh Uh Xh Xh Xh Xh Uh Uh JXh UXh Xh hX Fluorotelomer sulfonic acid 4:2 (4:2 FTS) 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) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND 8.77 ND 4.34 0.273 ND ND 0.222 ND ND ND 1.09 2.61 7.15 12.0 ND ND 0.426 ND 27.6 0.718 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 39 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24170411656 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 0.489 0.391 1.96 3.91 3.91 3.84 14.7 3.76 3.91 3.91 3.91 3.91 3.91 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: 618763010 D110822-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.196 0.196 0.646 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 0.763 0.646 3 JXh Xh hU Uh Uh Uh hU Uh Uh hU Uh Uh hU Uh hJ Uh Uh Uh 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (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 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" 0.339 0.938 ND ND ND ND ND ND ND ND ND ND ND ND 1.12 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 40 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 3.91 1.78 1.96 1.88 1.96 3.91 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: 618763010 D110822-33 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 hU hU Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh hU 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 04/21/23 24170360906RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 41 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763010 D110822-33 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180951414ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23JMB31.95 3.90 3.90 3.83 3.67 14.6 3.74 3.90 3.90 3.90 3.90 3.90 1.74 1.95 1.89 1.95 1.95 1.85 1.95 1.77 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: 618763011 Water 16-NOV-22 13:50 18-APR-23 W110822-21 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.644 1.29 1.29 1.29 1.29 5.25 1.29 1.29 1.29 1.29 1.29 0.644 0.644 0.780 0.644 0.761 0.644 0.644 0.644 0.644 1Uh hU hU hU hU hU hU hU hU hU hU hU hU h 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) Perfluorohexanesulfonic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND 2.01 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 43 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180950232 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23RR3 1.95 1.87 1.95 1.95 1.95 1.95 1.83 1.95 1.95 1.95 1.95 1.95 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 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: 618763011 W110822-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.780 0.683 0.644 0.644 0.780 0.780 0.644 0.644 0.780 0.644 0.644 0.644 0.195 0.195 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 h Uh Uh Uh Uh Uh Uh hXU h hUX hUX hUX hUX hUX UXh UXh Uh Uh JXh Xh (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) 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 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND 5.64 ND ND ND ND ND ND ND 1.21 ND ND ND ND ND ND ND ND ND 0.368 0.546 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 44 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24191781538 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23JMB3 0.488 0.488 0.488 0.488 0.488 19.5 3.90 0.488 0.488 0.390 3.90 3.90 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: 618763011 W110822-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.195 0.195 0.195 0.195 0.195 7.80 1.29 0.195 0.195 0.195 1.29 1.29 3 Xh Xh Uh Uh UXh hUX hUX hJX hUX hX hU hU (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) Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) EPA 537Mod PFCs by LC-MS/MS "As Received" 1.12 1.11 ND ND ND ND ND 0.273 ND 0.461 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 The following Prep Methods were performed: EPA 537.1 Modified EPA 537.1 Modified PFCs Extraction in Liquid PFCs Extraction in Liquid 04/26/23 04/24/23 2419177 2418093 1038 1357 RR4 RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 45 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763011 W110822-21 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180950248ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23RR30.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 0.485 19.4 3.88 0.485 0.485 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: 618763012 Water 16-NOV-22 13:50 18-APR-23 D110822-21 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 7.76 1.28 0.194 0.194 1UXh h UXh JXh UXh UXh UXh UXh UXh Uh Uh UXh Xh Xh Xh Uh Uh UXh hUX hUX hUX hJX 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 2.39 ND 0.307 ND ND ND ND ND ND ND ND 0.536 2.24 2.09 ND ND ND ND ND ND 0.214 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 Page 47 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 2419178 2418095 1547 1423 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23 04/25/23 JMB3 JMB3 0.388 3.98 3.98 1.94 3.88 3.88 3.81 3.65 14.6 3.73 3.88 3.88 3.88 3.88 3.88 1.73 1.94 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: 618763012 D110822-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.194 1.31 1.31 0.641 1.28 1.28 1.28 1.28 5.22 1.28 1.28 1.28 1.28 1.28 0.641 0.641 0.776 2 3 hX hU hU hU hU hU hU hU hU hU hU hU hU hU hU hU Jh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) 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) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.989 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.76 0.0194 0.0199 0.0199 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 Page 48 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 ng/L 1.88 1.94 1.94 1.84 1.94 1.77 1.94 1.86 1.94 1.94 1.94 1.94 1.82 1.94 1.94 1.94 1.94 1.94 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: 618763012 D110822-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.641 0.757 0.641 0.641 0.641 0.641 0.776 0.679 0.641 0.641 0.776 0.776 0.641 0.641 0.776 0.641 0.641 0.641 hU hU hU Uh Uh hU hU hU hU hU hU h hU hU hU hU hU hU Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) 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 3.03 ND ND ND ND ND ND 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 The following Prep Methods were performed: EPA 537.1 Modified EPA 537.1 Modified PFCs Extraction in Liquid PFCs Extraction in Liquid 04/24/23 04/26/23 2418093 2419177 1357 1038 RR4 RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 49 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763012 D110822-21 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180951431ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23JMB31.94 3.87 3.87 3.80 3.64 14.5 3.72 3.87 3.87 3.87 3.87 3.87 1.72 1.94 1.88 1.94 1.94 1.84 1.94 1.76 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: 618763013 Water 16-NOV-22 13:50 18-APR-23 W110822-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.639 1.28 1.28 1.28 1.28 5.21 1.28 1.28 1.28 1.28 1.28 0.639 0.639 0.774 0.639 0.755 0.639 0.639 0.639 0.639 1hU hU hU hU hU hU hU hU hU hU hU hU 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) Perfluorohexanesulfonic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND 0.872 ND ND ND ND ND ND 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 Page 51 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180950303 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23RR3 1.94 1.86 1.94 1.94 1.94 1.94 1.82 1.94 1.94 1.94 1.94 1.94 0.484 0.484 0.484 0.484 0.484 0.484 0.484 0.484 0.484 0.484 0.484 0.484 0.484 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: 618763013 W110822-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.774 0.677 0.639 0.639 0.774 0.774 0.639 0.639 0.774 0.639 0.639 0.639 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 0.194 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh h UXh JXh UXh UXh UXh UXh UXh Uh Uh JXh Xh (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) 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 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND 1.80 ND 0.351 ND ND ND ND ND ND ND 0.249 0.493 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 Page 52 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24191781555 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23JMB3 0.484 0.484 0.484 0.484 0.484 19.4 3.87 0.484 0.484 0.387 3.86 3.86 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: 618763013 W110822-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.194 0.194 0.194 0.194 0.194 7.74 1.28 0.194 0.194 0.194 1.27 1.27 3 Xh Xh Uh Uh UhX hUX hUX hUX hJX hX hU hU (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) Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) EPA 537Mod PFCs by LC-MS/MS "As Received" 1.41 1.66 ND ND ND ND ND ND 0.200 0.598 ND ND 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0194 0.0193 0.0193 The following Prep Methods were performed: EPA 537.1 Modified EPA 537.1 Modified PFCs Extraction in Liquid PFCs Extraction in Liquid 04/24/23 04/26/23 2418093 2419177 1357 1038 RR4 RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 53 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763013 W110822-21C 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 2419178 2418095 1713 1449 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23 04/25/23 JMB3 JMB3 20.0 20.0 1.98 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 5 5 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: 618763014 Water 16-NOV-22 13:50 18-APR-23 D110822-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 6.60 6.60 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 1 2 hU hU hU hU hU hU hU hU hU hU hU hU hU hU Uh Jh Uh Uh Uh Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) 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 0.797 ND ND ND 0.0200 0.0200 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 55 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180950318 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23RR3 1.88 1.98 1.80 1.98 1.90 1.98 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 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763014 D110822-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.654 0.654 0.654 0.792 0.693 0.654 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 3 Uh Uh Uh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh UXh h UXh JXh UXh UXh UXh UXh UXh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) 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 4.32 ND ND ND ND ND ND ND 3.46 ND 0.337 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 0.0198 Page 56 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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: 618763014 D110822-21C 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 JXh Xh Xh Xh Uh Uh UXh hUX hUX hJX hUX hX 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" 0.438 0.862 1.95 1.57 ND ND ND ND ND 0.311 ND 0.717 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 EPA 537.1 Modified PFCs Extraction in Liquid PFCs Extraction in Liquid 04/24/23 04/26/23 2418093 2419177 1357 1038 RR4 RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 57 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763014 D110822-21C 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168151625ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23RR30.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 0.463 18.5 3.70 0.463 0.463 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: 618763015 Water 11-APR-23 08:00 18-APR-23 W040423-AS NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 0.185 7.41 1.22 0.185 0.185 1UX U UX UX UX UX UX UX UX U U UX UX UX UX U 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 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10.5 ND ND ND 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 Page 59 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168151945 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 0.370 1.85 3.70 3.70 3.64 3.48 13.9 3.56 3.70 3.70 3.70 3.70 3.70 1.65 1.85 1.80 1.85 1.85 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: 618763015 W040423-AS NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.185 0.611 1.22 1.22 1.22 1.22 4.98 1.22 1.22 1.22 1.22 1.22 0.611 0.611 0.741 0.611 0.722 0.611 2 UX U U U U U U U U U U U U U J 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 1.32 ND ND ND 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 Page 60 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 1.76 1.85 3.70 1.68 1.85 1.78 1.85 3.70 1.85 1.85 1.85 1.74 1.85 1.85 1.85 1.85 1.85 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: 618763015 W040423-AS NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.611 0.611 1.22 0.611 0.741 0.648 0.611 1.22 0.611 0.741 0.741 0.611 0.611 0.741 0.611 0.611 0.611 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 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 0.0185 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24168090951SR2 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763015 W040423-AS 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168151640ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23RR30.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 20.1 4.02 0.503 0.503 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: 618763016 Water 11-APR-23 09:00 18-APR-23 W040423-EG NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 8.04 1.33 0.201 0.201 1UX U UX UX UX UX UX UX UX U U UX UX UX UX U 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 ND ND ND ND ND ND ND 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 Page 63 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168151954 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 0.402 2.01 4.02 4.02 3.95 3.78 15.1 3.86 4.02 4.02 4.02 4.02 4.02 1.79 2.01 1.95 2.01 2.01 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: 618763016 W040423-EG NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.201 0.663 1.33 1.33 1.33 1.33 5.41 1.33 1.33 1.33 1.33 1.33 0.663 0.663 0.804 0.663 0.784 0.663 2 UX U U J U U U U U U U U U U J 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 2.46 ND ND ND ND ND ND ND ND ND ND 0.977 ND ND ND 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 Page 64 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 1.91 2.01 4.02 1.83 2.01 1.93 2.01 4.02 2.01 2.01 2.01 1.89 2.01 2.01 2.01 2.01 2.01 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: 618763016 W040423-EG NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.663 0.663 1.33 0.663 0.804 0.704 0.663 1.33 0.663 0.804 0.804 0.663 0.663 0.804 0.663 0.663 0.663 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 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 0.0201 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24168090951SR2 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763016 W040423-EG 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 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168152003ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB31.90 3.80 3.80 3.73 3.57 14.2 3.65 3.80 3.80 3.80 3.80 3.80 1.69 1.90 1.84 1.90 1.90 1.80 1.90 3.80 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: 618763017 Water 11-APR-23 09:30 18-APR-23 W040423-PG NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.627 1.25 1.25 1.25 1.25 5.11 1.25 1.25 1.25 1.25 1.25 0.627 0.627 0.759 0.627 0.740 0.627 0.627 0.627 1.25 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 1.23 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 67 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168151655 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23RR3 1.73 1.90 1.82 1.90 3.80 1.90 1.90 1.90 1.78 1.90 1.90 1.90 1.90 1.90 0.475 0.475 0.475 0.475 0.475 0.475 0.475 0.475 0.475 0.475 0.475 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: 618763017 W040423-PG NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.627 0.759 0.664 0.627 1.25 0.627 0.759 0.759 0.627 0.627 0.759 0.627 0.627 0.627 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 0.190 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 0.0190 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 68 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 0.475 0.475 0.475 0.475 0.475 0.475 0.475 19.0 3.80 0.475 0.475 0.380 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: 618763017 W040423-PG 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 7.59 1.25 0.190 0.190 0.190 UX UX UX UX U U UX JX 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 7.70 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 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24168090951SR2 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 69 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763017 W040423-PG 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 70 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168152012ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB31.98 3.97 3.97 3.89 14.9 3.81 3.97 3.97 3.97 3.97 3.97 1.76 1.98 1.92 1.98 1.98 1.88 1.98 3.97 1.80 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: 618763018 Water 11-APR-23 09:40 18-APR-23 W040423-RK 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 5.33 1.31 1.31 1.31 1.31 1.31 0.654 0.654 0.793 0.654 0.773 0.654 0.654 0.654 1.31 0.654 1U U U U U U U U U U U U J 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 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 (PFHxDA) Perfluorohexanesulfonic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND 1.37 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 71 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168151710 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23RR3 1.98 1.90 1.98 3.97 1.98 1.98 1.86 1.98 1.98 1.98 1.98 1.98 0.496 0.496 0.496 0.496 0.496 0.496 0.496 0.496 0.496 0.496 0.496 0.496 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: 618763018 W040423-RK NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.793 0.694 0.654 1.31 0.654 0.793 0.654 0.654 0.793 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 0.198 2 U U U U U U U U U U U U UX U UX UX UX UX UX UX UX U U UX (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) 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 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) 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 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 72 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168152113 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 05/01/23JMB3 0.496 0.496 0.496 0.496 0.496 0.496 19.8 3.97 0.496 0.496 0.397 18.6 9.91 1 1 1 1 1 1 1 1 1 1 1 5 5 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763018 W040423-RK 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 7.93 1.31 0.198 0.198 0.198 6.54 3.97 3 UX UX UX U U UX JX UX UX UX UX U U 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) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Perfluorooctanesulfonic acid (PFOS) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND 10.7 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 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24168090951SR2 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 73 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763018 W040423-RK 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 74 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168152021ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB31.96 3.92 3.92 3.84 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 1.86 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: 618763019 Water 11-APR-23 11:30 18-APR-23 W040423-CD NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 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 0.763 0.646 0.646 0.646 1.29 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 1.32 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 75 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168151726 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23RR3 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 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: 618763019 W040423-CD NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 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 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 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 0.0196 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 76 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 19.6 3.92 0.489 0.489 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: 618763019 W040423-CD 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 7.83 1.29 0.196 0.196 0.196 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 0.0196 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 04/21/23 24168090951SR2 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 77 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763019 W040423-CD 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 78 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168151741ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23RR30.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 0.488 19.5 3.90 0.488 0.488 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: 618763020 Water 11-APR-23 11:30 18-APR-23 W040423-MH NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 0.195 7.81 1.29 0.195 0.195 1UX U UX UX UX UX UX UX UX U U UX UX UX UX U 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 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 8.68 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 Page 79 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24168152030 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/21/23JMB3 0.390 1.95 3.90 3.90 3.83 3.67 14.6 3.75 3.90 3.90 3.90 3.90 3.90 1.74 1.95 1.89 1.95 1.95 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: 618763020 W040423-MH NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.195 0.644 1.29 1.29 1.29 1.29 5.25 1.29 1.29 1.29 1.29 1.29 0.644 0.644 0.781 0.644 0.761 0.644 2 UX U U U U U U U U U U U U U J 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 1.05 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 Page 80 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 1.85 1.95 3.90 1.78 1.95 1.87 1.95 3.90 1.95 1.95 1.95 1.84 1.95 1.95 1.95 1.95 1.95 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: 618763020 W040423-MH NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.644 0.644 1.29 0.644 0.781 0.683 0.644 1.29 0.644 0.781 0.781 0.644 0.644 0.781 0.644 0.644 0.644 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 0.0195 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 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/21/23 24168090951SR2 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 81 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763020 W040423-MH 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 82 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180950333ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23RR30.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 0.506 20.2 4.05 0.506 0.506 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: 618763021 Water 17-APR-23 12:00 18-APR-23 TB041723-00 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 8.09 1.33 0.202 0.202 1UX U UX UX UX UX UX UX UX U U UX UX UX UX U 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 ND ND ND ND ND ND ND 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 Page 83 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180951457 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/25/23JMB3 0.405 2.02 4.05 4.05 3.97 3.80 15.2 3.88 4.05 4.05 4.05 4.05 4.05 1.80 2.02 1.96 2.02 2.02 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: 618763021 TB041723-00 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.202 0.667 1.33 1.33 1.33 1.33 5.44 1.33 1.33 1.33 1.33 1.33 0.667 0.667 0.809 0.667 0.789 0.667 2 UX U 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 ND ND ND ND 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 Page 84 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 1.92 2.02 4.05 1.84 2.02 1.94 2.02 4.05 2.02 2.02 2.02 1.90 2.02 2.02 2.02 2.02 2.02 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: 618763021 TB041723-00 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.667 0.667 1.33 0.667 0.809 0.708 0.667 1.33 0.667 0.809 0.809 0.667 0.667 0.809 0.667 0.667 0.667 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 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 0.0202 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 04/24/23 24180931357RR4 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 85 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763021 TB041723-00 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 86 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24180950348ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23RR30.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 19.9 3.98 0.498 0.498 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: 618763022 Water 16-NOV-22 13:00 18-APR-23 FB110822-32 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 7.96 1.31 0.199 0.199 1UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh Uh Uh UXh hUX hUX hUX hUX 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 0.0199 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 87 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 2419178 2418095 1613 1506 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 04/26/23 04/25/23 JMB3 JMB3 0.398 3.94 3.94 1.99 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 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: 618763022 FB110822-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.199 1.30 1.30 0.657 1.31 1.31 1.31 1.31 5.36 1.31 1.31 1.31 1.31 1.31 0.657 0.657 0.796 2 3 hUX hU hU hU hU hU hU hU hU hU hU hU hU hU hU Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) 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) 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 0.0199 0.0197 0.0197 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 88 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 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 ng/L 1.93 1.99 1.99 1.89 1.99 1.81 1.99 1.91 1.99 1.99 1.99 1.99 1.87 1.99 1.99 1.99 1.99 1.99 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: 618763022 FB110822-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.657 0.777 0.657 0.657 0.657 0.657 0.796 0.697 0.657 0.657 0.796 0.796 0.657 0.657 0.796 0.657 0.657 0.657 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) 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 13.0 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 The following Prep Methods were performed: EPA 537.1 Modified EPA 537.1 Modified PFCs Extraction in Liquid PFCs Extraction in Liquid 04/24/23 04/26/23 2418093 2419177 1357 1038 RR4 RR4 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 3 Method Description EPA 537.1 Modified EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 89 of 138 SDG: 618763 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: May 2, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 618763022 FB110822-32 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 90 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 May 2, 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 RR3 JMB3 RR3 JMB3 RR3 JMB3 RR3 04/25/23 13:23 04/21/23 17:58 04/25/23 13:23 04/21/23 17:58 04/25/23 13:23 04/21/23 17:58 04/25/23 13:23 QC 16.3 13.8 16.6 17.3 16.4 17.1 19.2 17.9 15.5 14.9 21.2 13.3 16.4 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 QC1205381031 REC% 85 76 87 90 86 89 101 94 87 83 117 72 86 19.1 18.0 19.1 19.1 19.1 19.1 19.1 19.1 17.8 17.9 18.2 18.4 19.1 LCS 618763Workorder: North Carolina Department of Environment RPD/D% Page 1 of 36 Page 91 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 04/21/23 17:58 04/25/23 13:23 QC 16.2 17.2 18.6 16.9 11.8 17.9 3.18 3.09 16.6 18.0 17.9 16.0 16.0 17.1 17.5 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% 85 90 97 88 61 93 17 16 87 94 94 84 84 89 91 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 618763Workorder: RPD/D% Page 2 of 36 Page 92 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 JMB3 RR3 JMB3 04/25/23 13:23 04/21/23 17:58 04/25/23 13:23 04/21/23 17:58 QC 17.2 17.5 17.1 17.1 15.5 17.1 14.6 16.9 12.4 16.2 13.5 17.1 17.6 16.8 15.8 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% 90 92 89 89 91 90 79 88 67 85 70 94 92 88 91 19.1 19.1 19.1 19.1 16.9 19.1 18.5 19.1 18.5 19.1 19.1 18.2 19.1 19.1 17.5 618763Workorder: RPD/D% Page 3 of 36 Page 93 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 JMB3 RR3 04/21/23 17:58 04/25/23 13:23 04/21/23 17:58 04/25/23 13:23 04/25/23 13:38 QC 16.4 14.8 18.0 9.50 16.3 18.0 20.3 15.4 17.3 22.2 17.3 17.3 18.2 3.76 15.6 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%) (0%-30%) Qual X JX X QC1205381032 4 REC% 86 80 94 50 85 94 106 86 90 116 91 90 95 20 82 19.1 18.4 19.1 19.1 19.1 19.1 19.1 18.0 19.1 19.1 19.1 19.1 19.1 19.1 19.0 LCSD 618763Workorder: RPD/D% Page 4 of 36 Page 94 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 JMB3 RR3 JMB3 RR3 JMB3 04/24/23 09:52 04/25/23 13:38 04/24/23 09:52 04/25/23 13:38 04/24/23 09:52 04/25/23 13:38 04/24/23 09:52 QC 15.5 17.7 18.0 18.5 17.2 17.3 17.9 16.1 16.7 13.4 14.6 17.1 18.4 19.1 17.5 NOM Sample Range (0%-27%) (0%-30%) (0%-27%) (0%-28%) (0%-30%) (0%-26%) (0%-24%) (0%-26%) (0%-32%) (0%-32%) (0%-36%) (0%-24%) (0%-27%) (0%-27%) (0%-36%) Qual X X J X 6 4 0 4 REC% 86 93 94 97 90 91 94 91 94 74 80 90 96 100 92 17.9 19.0 19.0 19.0 19.0 19.0 19.0 17.7 17.8 18.1 18.3 19.0 19.0 19.0 19.0 618763Workorder: * * * * * * * * * * * RPD/D% Page 5 of 36 Page 95 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 04/24/23 09:52 04/25/23 13:38 QC 18.8 13.3 18.2 7.21 7.70 16.1 17.7 17.2 17.7 16.0 16.7 18.4 17.0 17.9 17.2 NOM Sample Range (0%-27%) (0%-28%) (0%-23%) (0%-45%) (0%-40%) (0%-26%) (0%-27%) (0%-35%) (0%-40%) (0%-39%) (0%-36%) (0%-27%) (0%-29%) (0%-30%) (0%-31%) Qual X X X X X X X X X X X 12 2 78 85 3 2 4 10 0 2 5 1 2 1 REC% 99 70 96 38 40 85 93 90 93 84 88 97 90 94 90 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 618763Workorder: * * * RPD/D% Page 6 of 36 Page 96 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 JMB3 RR3 JMB3 04/25/23 13:38 04/24/23 09:52 04/25/23 13:38 04/24/23 09:52 QC 17.8 16.6 17.6 15.8 17.6 16.7 18.3 15.6 18.2 17.7 18.9 15.3 17.8 16.5 18.2 NOM Sample Range (0%-25%) (0%-35%) (0%-20%) (0%-30%) (0%-31%) (0%-32%) (0%-26%) (0%-30%) (0%-40%) (0%-23%) (0%-26%) (0%-27%) (0%-27%) (0%-27%) (0%-25%) Qual X 4 15 REC% 93 99 93 86 93 91 96 82 101 93 99 88 93 90 95 19.0 16.9 19.0 18.4 19.0 18.4 19.0 19.0 18.1 19.0 19.0 17.4 19.0 18.3 19.0 618763Workorder: * * * * * * * * * * * * * RPD/D% Page 7 of 36 Page 97 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 JMB3 RR3 JMB3 RR3 04/24/23 09:52 04/25/23 13:38 04/24/23 09:52 04/25/23 13:38 04/25/23 13:07 04/21/23 17:49 04/25/23 13:07 QC 12.7 18.6 18.4 18.5 14.8 17.0 22.8 18.6 19.8 15.3 7.21 ND ND ND ND NOM Sample Range (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 UX U U UX QC1205381030 3 63 REC% 67 98 97 97 83 90 120 98 104 81 38 19.0 19.0 19.0 19.0 17.9 19.0 19.0 19.0 19.0 19.0 19.0 MB 618763Workorder: * * * * * * * * * * RPD/D% Page 8 of 36 Page 98 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 JMB3 RR3 JMB3 RR3 04/21/23 17:49 04/25/23 13:07 04/21/23 17:49 04/25/23 13:07 04/21/23 17:49 04/25/23 13:07 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% 618763Workorder: RPD/D% Page 9 of 36 Page 99 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 JMB3 04/25/23 13:07 04/21/23 17:49 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% 618763Workorder: RPD/D% Page 10 of 36 Page 100 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815Batch 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 RR3 JMB3 04/21/23 17:49 04/25/23 13:07 04/21/23 17:49 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% 618763Workorder: RPD/D% Page 11 of 36 Page 101 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2416815 2417041 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 RR3 JMB3 RR3 RR3 JMB3 RR3 JMB3 04/21/23 17:49 04/25/23 13:07 04/21/23 17:49 04/25/23 13:07 04/21/23 18:23 04/21/23 15:09 04/21/23 18:23 04/21/23 15:09 QC ND ND ND ND ND ND ND ND 21.0 17.2 24.4 21.4 25.8 25.7 NOM Sample Range (60%-158%) (59%-144%) (67%-144%) (58%-144%) (54%-128%) (52%-141%) Qual U U U UX U U U UX X X QC1205381541 REC% 110 96 128 112 135 135 19.1 17.9 19.1 19.1 19.1 19.1 LCS 618763Workorder: * RPD/D% Page 12 of 36 Page 102 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 RR3 JMB3 RR3 04/21/23 15:09 04/21/23 18:23 04/21/23 15:09 04/21/23 18:23 04/21/23 15:09 04/21/23 18:23 QC 22.4 23.7 19.8 23.3 21.1 25.1 21.0 28.0 20.7 28.9 25.1 12.9 22.8 1.99 2.21 NOM Sample Range (67%-154%) (73%-141%) (68%-135%) (56%-151%) (60%-153%) (60%-141%) (61%-148%) (23%-155%) (57%-139%) (20%-154%) (59%-145%) (35%-138%) (63%-143%) (5%-158%) (5%-149%) Qual X X X X X X REC% 118 125 112 131 116 137 110 147 109 151 132 68 119 10 12 19.1 19.1 17.8 17.8 18.1 18.3 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 618763Workorder: RPD/D% Page 13 of 36 Page 103 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 04/21/23 18:23 04/21/23 15:09 QC 20.2 23.3 22.8 16.3 22.0 22.4 23.6 25.2 22.5 23.8 23.8 21.2 24.3 18.0 21.9 NOM Sample Range (59%-145%) (48%-149%) (52%-148%) (58%-147%) (60%-151%) (62%-148%) (60%-144%) (58%-142%) (50%-150%) (52%-144%) (60%-149%) (70%-144%) (73%-151%) (58%-134%) (65%-145%) Qual X X X X X X X REC% 106 123 119 86 115 117 124 132 118 125 125 126 128 98 115 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 19.1 16.9 19.1 18.4 19.1 618763Workorder: RPD/D% Page 14 of 36 Page 104 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 04/21/23 15:09 04/21/23 18:23 04/21/23 15:09 QC 20.7 23.1 16.3 22.6 22.3 23.7 20.3 23.1 19.6 19.2 17.2 22.3 23.9 21.9 20.1 NOM Sample Range (57%-134%) (65%-137%) (20%-160%) (68%-138%) (71%-133%) (69%-144%) (67%-145%) (70%-138%) (64%-133%) (69%-133%) (35%-165%) (64%-134%) (65%-145%) (66%-139%) (67%-136%) Qual X REC% 112 121 85 125 117 124 117 121 107 101 90 117 125 115 112 18.4 19.1 19.1 18.1 19.1 19.1 17.4 19.1 18.3 19.1 19.1 19.1 19.1 19.1 17.9 618763Workorder: RPD/D% Page 15 of 36 Page 105 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 RR3 JMB3 RR3 JMB3 RR3 JMB3 04/21/23 15:09 04/21/23 18:23 04/21/23 15:09 04/21/23 18:23 04/25/23 18:11 04/21/23 15:18 04/25/23 18:11 04/21/23 15:18 04/25/23 18:11 04/21/23 15:18 QC 22.2 30.0 24.1 26.4 24.2 3.67 23.8 17.9 25.6 24.8 28.5 28.4 23.2 26.5 19.8 NOM Sample Range (72%-143%) (49%-153%) (66%-138%) (58%-140%) (63%-135%) (5%-158%) (0%-30%) (0%-27%) (0%-30%) (0%-27%) (0%-28%) (0%-30%) (0%-26%) (0%-24%) (0%-26%) Qual X JX X X X QC1205381542 13 4 5 15 10 10 3 11 0 REC% 117 157 127 138 127 19 125 100 134 130 150 149 122 139 111 19.1 19.1 19.1 19.1 19.1 19.1 19.0 17.9 19.0 19.0 19.0 19.0 19.0 19.0 17.7 LCSD 618763Workorder: * * * RPD/D% Page 16 of 36 Page 106 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 RR3 04/21/23 15:18 04/25/23 18:11 04/21/23 15:18 04/25/23 18:11 QC 21.0 26.5 23.3 27.2 27.2 22.7 28.3 27.5 14.6 26.6 15.0 15.4 25.5 27.5 27.5 NOM Sample Range (0%-32%) (0%-32%) (0%-36%) (0%-24%) (0%-27%) (0%-27%) (0%-36%) (0%-27%) (0%-28%) (0%-23%) (0%-45%) (0%-40%) (0%-26%) (0%-27%) (0%-35%) Qual X X X X X X 11 23 7 26 3 9 2 9 12 15 153 150 23 16 19 REC% 118 146 127 143 143 119 148 144 77 140 79 81 134 144 144 17.8 18.1 18.3 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 618763Workorder: * * * RPD/D% Page 17 of 36 Page 107 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 RR3 04/25/23 18:11 04/21/23 15:18 04/25/23 18:11 QC 22.9 24.9 24.8 26.8 26.4 25.9 24.9 26.8 22.2 25.7 19.2 25.3 21.7 22.8 22.0 NOM Sample Range (0%-40%) (0%-39%) (0%-36%) (0%-27%) (0%-29%) (0%-30%) (0%-31%) (0%-25%) (0%-35%) (0%-20%) (0%-30%) (0%-31%) (0%-32%) (0%-26%) (0%-30%) Qual X X X X X X X 34 12 10 13 5 14 4 12 4 6 6 14 5 1 30 REC% 120 131 130 141 139 136 131 141 132 135 104 133 118 120 116 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 16.9 19.0 18.4 19.0 18.4 19.0 19.0 618763Workorder: RPD/D% Page 18 of 36 Page 108 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 04/21/23 15:18 04/25/23 18:11 04/21/23 15:18 QC 22.9 23.6 25.9 23.3 21.1 19.8 24.1 22.8 26.0 24.5 24.2 22.8 25.5 33.6 25.2 NOM Sample Range (0%-40%) (0%-23%) (0%-26%) (0%-27%) (0%-27%) (0%-27%) (0%-25%) (0%-39%) (0%-26%) (0%-25%) (0%-27%) (0%-40%) (0%-25%) (0%-26%) (0%-26%) Qual X 1 6 9 14 9 1 22 28 15 3 10 12 14 11 5 REC% 126 124 136 134 111 108 127 119 136 129 127 127 134 177 132 18.1 19.0 19.0 17.4 19.0 18.3 19.0 19.0 19.0 19.0 19.0 17.9 19.0 19.0 19.0 618763Workorder: * * RPD/D% Page 19 of 36 Page 109 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 RR3 JMB3 RR3 JMB3 04/21/23 15:18 04/25/23 18:11 04/21/23 18:07 04/21/23 15:00 04/21/23 18:07 04/21/23 15:00 04/21/23 18:07 04/21/23 15:00 QC 26.1 25.9 16.4 ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample Range (0%-31%) (0%-30%) (0%-26%) Qual X UX U U UX U U U UX U U U U QC1205381540 1 7 127 REC% 137 136 86 19.0 19.0 19.0 MB 618763Workorder: * * RPD/D% Page 20 of 36 Page 110 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 RR3 04/21/23 18:07 04/21/23 15:00 04/21/23 18:07 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% 618763Workorder: RPD/D% Page 21 of 36 Page 111 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 RR3 JMB3 04/21/23 18:07 04/21/23 15:00 04/21/23 18:07 04/21/23 15:00 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% 618763Workorder: RPD/D% Page 22 of 36 Page 112 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2417041Batch 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 RR3 JMB3 RR3 04/21/23 15:00 04/21/23 18:07 04/21/23 15:00 04/21/23 18:07 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% 618763Workorder: RPD/D% Page 23 of 36 Page 113 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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 RR3 JMB3 RR3 JMB3 RR3 JMB3 RR3 JMB3 04/26/23 00:00 04/25/23 12:48 04/26/23 00:00 04/25/23 12:48 04/26/23 00:00 04/25/23 12:48 04/26/23 00:00 04/25/23 12:48 QC 14.0 14.8 18.0 17.5 15.9 18.7 18.9 17.7 17.8 21.1 15.1 14.3 16.7 18.7 17.2 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%) (23%-155%) (57%-139%) Qual X X X X QC1205383392 REC% 74 83 95 92 84 98 100 94 101 119 84 78 88 98 91 19.0 17.9 19.0 19.0 19.0 19.0 19.0 19.0 17.7 17.7 18.0 18.2 19.0 19.0 19.0 LCS 618763Workorder: RPD/D% Page 24 of 36 Page 114 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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 RR3 04/25/23 12:48 04/26/23 00:00 QC 16.6 18.4 11.8 19.2 9.43 10.3 17.6 17.2 17.6 17.0 15.7 16.7 17.7 17.5 17.6 NOM Sample Range (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%) (58%-142%) (50%-150%) Qual X X X X X X X X X X REC% 88 97 62 101 50 54 93 91 93 90 82 88 93 92 93 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 618763Workorder: RPD/D% Page 25 of 36 Page 115 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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 RR3 JMB3 RR3 JMB3 04/26/23 00:00 04/25/23 12:48 04/26/23 00:00 04/25/23 12:48 QC 16.7 16.9 14.5 18.5 15.6 21.2 15.7 17.4 13.1 17.1 16.4 18.1 16.4 17.0 16.9 NOM Sample Range (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%) (70%-138%) (64%-133%) Qual X X REC% 88 89 87 97 85 112 85 92 69 95 86 95 95 90 93 19.0 19.0 16.8 19.0 18.3 19.0 18.4 19.0 19.0 18.0 19.0 19.0 17.3 19.0 18.2 618763Workorder: RPD/D% Page 26 of 36 Page 116 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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) 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) 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 RR3 JMB3 RR3 JMB3 RR3 04/25/23 12:48 04/26/23 00:00 04/25/23 12:48 04/26/23 00:00 04/26/23 00:16 04/25/23 12:56 04/26/23 00:16 QC 17.3 3.38 16.2 17.7 18.5 17.0 17.9 20.8 18.5 18.9 17.0 11.0 13.8 16.9 17.9 NOM Sample Range (69%-133%) (35%-165%) (64%-134%) (65%-145%) (66%-139%) (67%-136%) (72%-143%) (49%-153%) (66%-138%) (58%-140%) (63%-135%) (5%-158%) (0%-30%) (0%-27%) (0%-30%) Qual J X X X QC1205383393 1 13 1 REC% 91 18 85 93 97 95 94 110 97 100 90 58 72 94 94 19.0 19.0 19.0 19.0 19.0 17.8 19.0 19.0 19.0 19.0 19.0 19.0 19.0 17.9 19.0 LCSD 618763Workorder: * RPD/D% Page 27 of 36 Page 117 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) 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 RR3 JMB3 RR3 JMB3 RR3 JMB3 RR3 04/26/23 00:16 04/25/23 12:56 04/26/23 00:16 04/25/23 12:56 04/26/23 00:16 04/25/23 12:56 04/26/23 00:16 QC 18.7 19.4 18.6 20.2 19.0 18.9 16.4 18.9 14.8 17.9 19.9 17.8 17.9 17.8 12.1 NOM Sample Range (0%-27%) (0%-28%) (0%-30%) (0%-26%) (0%-24%) (0%-26%) (0%-32%) (0%-32%) (0%-36%) (0%-24%) (0%-27%) (0%-27%) (0%-36%) (0%-27%) (0%-28%) Qual X X X X 7 20 1 7 7 6 25 23 3 7 6 3 7 3 2 REC% 98 102 98 106 100 106 92 104 81 94 104 94 94 94 63 19.0 19.0 19.0 19.0 19.0 17.7 17.8 18.1 18.3 19.0 19.0 19.0 19.0 19.0 19.0 618763Workorder: RPD/D% Page 28 of 36 Page 118 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluorobutanesulfonic acid (PFBS) 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 RR3 JMB3 04/26/23 00:16 04/25/23 12:56 QC 19.7 4.80 5.97 16.3 18.2 19.1 18.7 18.3 16.5 17.9 17.6 18.4 17.7 17.8 14.9 NOM Sample Range (0%-23%) (0%-45%) (0%-40%) (0%-26%) (0%-27%) (0%-35%) (0%-40%) (0%-39%) (0%-36%) (0%-27%) (0%-29%) (0%-30%) (0%-31%) (0%-25%) (0%-35%) Qual X X X X X X X X X X 3 65 53 8 6 8 9 16 1 1 0 4 6 5 3 REC% 103 25 31 86 96 100 98 96 87 94 92 97 93 93 89 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 19.0 16.8 618763Workorder: * * RPD/D% Page 29 of 36 Page 119 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) 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 RR3 JMB3 04/25/23 12:56 04/26/23 00:16 04/25/23 12:56 QC 18.7 16.6 18.4 16.5 17.5 14.5 18.0 18.9 18.4 17.5 18.1 18.7 17.4 4.38 18.0 NOM Sample Range (0%-20%) (0%-30%) (0%-31%) (0%-32%) (0%-26%) (0%-30%) (0%-40%) (0%-23%) (0%-26%) (0%-27%) (0%-27%) (0%-27%) (0%-25%) (0%-39%) (0%-26%) Qual X 1 6 14 5 1 10 5 14 2 7 6 10 1 26 11 REC% 98 91 97 89 92 76 99 99 97 101 95 102 92 23 95 19.0 18.4 19.0 18.4 19.0 19.0 18.1 19.0 19.0 17.4 19.0 18.3 19.0 19.0 19.0 618763Workorder: * RPD/D% Page 30 of 36 Page 120 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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) 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 ng/L Anlst Date Time JMB3 RR3 JMB3 RR3 JMB3 RR3 JMB3 04/25/23 12:56 04/26/23 00:16 04/25/23 12:56 04/26/23 00:16 04/25/23 23:45 04/25/23 12:39 04/25/23 23:45 04/25/23 12:39 QC 19.6 19.1 17.6 21.4 22.4 19.6 20.3 18.0 6.80 ND ND ND ND ND ND NOM Sample Range (0%-25%) (0%-27%) (0%-40%) (0%-25%) (0%-26%) (0%-26%) (0%-31%) (0%-30%) (0%-26%) Qual X X UX U U UX U U QC1205383391 10 3 3 18 7 6 7 6 47 REC% 103 100 98 112 118 103 107 95 36 19.0 19.0 17.9 19.0 19.0 19.0 19.0 19.0 19.0 MB 618763Workorder: * RPD/D% Page 31 of 36 Page 121 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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 RR3 JMB3 RR3 JMB3 RR3 04/25/23 12:39 04/25/23 23:45 04/25/23 12:39 04/25/23 23:45 04/25/23 12:39 04/25/23 23:45 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual U UX U U U U UX U U U U UX UX UX UX REC% 618763Workorder: RPD/D% Page 32 of 36 Page 122 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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 RR3 JMB3 04/25/23 23:45 04/25/23 12:39 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual UX U U UX UX UX UX U UX UX U U U U U REC% 618763Workorder: RPD/D% Page 33 of 36 Page 123 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095Batch 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 RR3 JMB3 04/25/23 12:39 04/25/23 23:45 04/25/23 12:39 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 U U U U U U U U U REC% 618763Workorder: RPD/D% Page 34 of 36 Page 124 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2418095 2419178 Batch Batch Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) Perfluorohexadecanoic acid (PFHxDA) Perfluorooctadecanoic acid (PFODA) 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 RR3 JMB3 RR3 JMB3 04/25/23 12:39 04/25/23 23:45 04/25/23 12:39 04/25/23 23:45 04/26/23 15:04 04/26/23 15:12 04/26/23 14:55 QC ND ND ND ND ND ND 18.0 12.3 20.0 8.24 ND ND NOM Sample Range (69%-144%) (35%-165%) (0%-26%) (0%-39%) Qual U UX U U U UX U U QC1205385369 QC1205385370 QC1205385368 The Qualifiers in this report are defined as follows: 10 39 REC% 98 66 105 43 18.5 18.5 19.1 19.1 LCS LCSD MB 618763Workorder: U J Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. Value is estimated RPD/D% Notes: Page 35 of 36 Page 125 of 138 SDG: 618763 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Parmname Page 36 of 36 Units Anlst Date TimeQCNOMSampleRangeQualREC% 618763Workorder: P C B E A X N H ** < > h R ^ D N/A ND NJ JNX UJ Q N1 Y N J 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 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 126 of 138 SDG: 618763 Page 127 of 138 SDG: 618763 Page 128 of 138 SDG: 618763 Page 129 of 138 SDG: 618763 Page 130 of 138 SDG: 618763 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 T104704235-22-20 SC000122022-37 VT87156 460202 C780 List of current GEL Certifications as of 02 May 2023 Page 131 of 138 SDG: 618763 LCMSMS-Misc Technical Case Narrative NC Dept Environmental Quality SDG #: 618763 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: 2416815 and 2416809 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 618763015 W040423-AS 618763016 W040423-EG 618763017 W040423-PG 618763018 W040423-RK 618763019 W040423-CD 618763020 W040423-MH 1205381030 Method Blank (MB) 1205381031 Laboratory Control Sample (LCS) 1205381032 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 1205381031 (LCS) and 1205381032 (LCSD)Nafion Byproduct 4 (PFESA BP4)RPD 78* (0%-45%) Nafion Byproduct 5 (PFESA BP5)RPD 85* (0%-40%) Page 132 of 138 SDG: 618763 R-EVE RPD 63* (0%-26%) Internal Standard (ISTD) Acceptance Samples 618763018 (W040423-RK) did not meet acceptance criteria for one or more internal standards. The samples were diluted in order to bring internal standards within acceptance criteria. The results for these samples were reported from the undiluted and diluted analyses. Technical Information Sample Dilutions The following sample and/or QC were diluted due to the Internal Standard Recovery not within the limits in the undiluted analysis. 618763018 (W040423-RK). The following sample was diluted due to an interference affecting the PFOS quantitative MRM only. The sample was diluted such that the qualitative MRM is being reported as an elevated non-detect. 618763018 (W040423-RK). Analyte 618763 018 Fluorotelomer sulfonic acid 4:2 (4:2 FTS)5X Perfluorooctanesulfonic acid (PFOS)5X Miscellaneous Information Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Analytical Procedure: GL-OA-E-076 REV# 14 Analytical Batches: 2417041 and 2417036 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 618763001 W110822-02 618763002 D110822-02 618763003 W110822-MB 618763004 D110822-MB 618763005 W110822-19 618763006 D110822-19 618763007 W110822-32 618763008 D110822-32 618763009 W110822-33 618763010 D110822-33 1205381540 Method Blank (MB) 1205381541 Laboratory Control Sample (LCS) 1205381542 Laboratory Control Sample Duplicate (LCSD) The samples in this SDG were analyzed on an "as received" basis. Page 133 of 138 SDG: 618763 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. Laboratory Control Sample (LCS) Recovery The LCS and/or LCSD (See Below) did not meet the spike recovery acceptance limits with a positive bias. As target analytes were not detected in the associated samples, the data were not adversely impacted. Sample Analyte Value 1205381541 (LCS)2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol (N-EtFOSE)135* (54%-128%) 1205381542 (LCSD)2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol (N-EtFOSE)150* (54%-128%) 2-(N-methylperfluoro-1-octanesulfonamido)-ethanol (N-MeFOSE)149* (52%-141%) Perfluoro(4-methoxybutanoic) acid (PFMOBA)150* (58%-142%) Perfluorooctanesulfonamide (PFOSA)136* (64%-134%) Perfluoroundecanoic acid (PFUnA)136* (63%-135%) The LCS/LCSD (See Below) analyzed with this SDG did not meet the established acceptance criteria for PPF Acid (PFPrA). The extraction cartridges used in the prep process contains PFF Acid (PFPrA) above GEL’s reporting limit or exhibits an interference/enhancement mimicking PPF Acid (PFPrA), contributing to high recoveries in the LCS/LCSD. Levels detected in the samples and QC should be assessed accordingly. Sample Analyte Value 1205381541 (LCS)Perfluoropropanoic acid (PFPrA)157* (49%-153%) 1205381542 (LCSD)Perfluoropropanoic acid (PFPrA)177* (49%-153%) 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 1205381541 (LCS) and 1205381542 (LCSD)Hydro-EVE RPD 26* (0%-24%) Nafion Byproduct 4 (PFESA BP4)RPD 153* (0%-45%) Nafion Byproduct 5 (PFESA BP5)RPD 150* (0%-40%) R-EVE RPD 127* (0%-26%) Internal Standard (ISTD) Acceptance Samples 618763004 (D110822-MB), 618763008 (D110822-32) and 618763010 (D110822-33) did not meet acceptance criteria for one or more internal standards. The samples were diluted in order to bring internal standards within acceptance criteria. The results for these samples were reported from the undiluted and diluted Page 134 of 138 SDG: 618763 analyses. Technical Information Holding Time Specifications Samples (See Below) did not meet holding time requirements due to insufficient time remaining to meet the hold times. The following samples were received by the laboratory after the recommended holding time had expired. Sample Analyte Value 618763001 (W110822-02)Received 18-APR-23, out of holding 30-NOV-22 618763002 (D110822-02)Received 18-APR-23, out of holding 30-NOV-22 618763003 (W110822-MB)Received 18-APR-23, out of holding 30-NOV-22 618763004 (D110822-MB)Received 18-APR-23, out of holding 30-NOV-22 618763005 (W110822-19)Received 18-APR-23, out of holding 30-NOV-22 618763006 (D110822-19)Received 18-APR-23, out of holding 30-NOV-22 618763007 (W110822-32)Received 18-APR-23, out of holding 30-NOV-22 618763008 (D110822-32)Received 18-APR-23, out of holding 30-NOV-22 618763009 (W110822-33)Received 18-APR-23, out of holding 30-NOV-22 618763010 (D110822-33)Received 18-APR-23, out of holding 30-NOV-22 Sample Dilutions The following samples and/or QC were diluted due to the Internal Standard Recovery not within the limits in the undiluted analysis. 618763004 (D110822-MB), 618763008 (D110822-32) and 618763010 (D110822-33). Analyte 618763 004 008 010 Fluorotelomer sulfonic acid 4:2 (4:2 FTS)5X 5X 5X Perfluorohexadecanoic acid (PFHxDA)5X 1X 1X Perfluorooctadecanoic acid (PFODA)5X 1X 1X 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: 2418095 and 2418093 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 618763011 W110822-21 Page 135 of 138 SDG: 618763 618763012 D110822-21 618763013 W110822-21C 618763014 D110822-21C 618763021 TB041723-00 618763022 FB110822-32 1205383391 Method Blank (MB) 1205383392 Laboratory Control Sample (LCS) 1205383393 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. Laboratory Control Sample (LCS) Recovery LCS and LCSD (See Below) did not meet spike recovery acceptance criteria for PFODA. Several samples were consumed and could not be re-extraction; data for those samples were reported as is. For those samples that were re-extracted, results for PFODA were reported from the re-extraction, along with PFHxDA and the mass-labeled PFHxDA internal standard that was also used to quantitate PFODA results. Results for all other target analytes and internal standards were reported from the original extractions. Sample Analyte Value 1205383392 (LCS)Perfluorooctadecanoic acid (PFODA)18* (35%-165%) 1205383393 (LCSD)Perfluorooctadecanoic acid (PFODA)23* (35%-165%) 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 1205383392 (LCS) and 1205383393 (LCSD)Nafion Byproduct 4 (PFESA BP4)RPD 65* (0%-45%) Nafion Byproduct 5 (PFESA BP5)RPD 53* (0%-40%) R-EVE RPD 47* (0%-26%) Page 136 of 138 SDG: 618763 Technical Information Holding Time Specifications Samples (See Below) did not meet holding time requirements due to insufficient time remaining to meet the hold times. The following samples were received by the laboratory after the recommended holding time had expired. Sample Analyte Value 618763011 (W110822-21)Received 18-APR-23, out of holding 30-NOV-22 618763012 (D110822-21)Received 18-APR-23, out of holding 30-NOV-22 618763013 (W110822-21C)Received 18-APR-23, out of holding 30-NOV-22 618763014 (D110822-21C)Received 18-APR-23, out of holding 30-NOV-22 618763022 (FB110822-32)Received 18-APR-23, out of holding 30-NOV-22 Sample Re-extraction/Re-analysis Samples 618763011 (W110822-21), 618763012 (D110822-21), 618763013 (W110822-21C), 618763014 (D110822-21C) and 618763022 (FB110822-32) were re-extracted due to low LCS/LCSD recoveries for PFODA. LCS and LCSD 618763011 (W110822-21), 618763012 (D110822-21), 618763013 (W110822-21C), 618763014 (D110822-21C) and 618763022 (FB110822-32) did not meet spike recovery acceptance criteria for PFODA. Results for PFODA were reported from the re-extractions, along with PFHxDA and the mass-labeled PFHxDA internal standard that was also used to quantitate PFODA results. Results for all other target analytes and internal standards were reported from the original extractions. 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: 2419178 and 2419177 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 618763011 W110822-21 618763012 D110822-21 618763013 W110822-21C 618763014 D110822-21C 618763022 FB110822-32 1205385368 Method Blank (MB) 1205385369 Laboratory Control Sample (LCS) 1205385370 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 Page 137 of 138 SDG: 618763 procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Quality Control (QC) Information Laboratory Control Sample Duplicate (LCSD) An LCSD was used in place of matrix QC due to limited sample volume. Internal Standard (ISTD) Acceptance Samples 618763014 (D110822-21C) did not meet acceptance criteria for one or more internal standards. The samples were diluted in order to bring internal standards within acceptance criteria. The results for these samples were reported from the undiluted and diluted analyses. Technical Information Holding Time Specifications Samples (See Below) did not meet holding time requirements due to insufficient time remaining to meet the hold times. The following samples were received by the laboratory after the recommended holding time had expired. Sample Analyte Value 618763011 (W110822-21)Received 18-APR-23, out of holding 30-NOV-22 618763012 (D110822-21)Received 18-APR-23, out of holding 30-NOV-22 618763013 (W110822-21C)Received 18-APR-23, out of holding 30-NOV-22 618763014 (D110822-21C)Received 18-APR-23, out of holding 30-NOV-22 618763022 (FB110822-32)Received 18-APR-23, out of holding 30-NOV-22 Sample Dilutions The following sample and/or QC were diluted due to the Internal Standard Recovery not within the limits in the undiluted analysis. 618763014 (D110822-21C). Analyte 618763 014 Perfluorohexadecanoic acid (PFHxDA)5X Perfluorooctadecanoic acid (PFODA)5X Miscellaneous Information Additional Comments The samples in this batch were previously extracted but the QC did not meet spike recovery acceptance criteria for PFODA. Upon re-extraction spike recoveries for PFODA were within acceptance criteria. Results for PFODA were quantitated with the mass-labeled internal standard for PFHxDA. Therefore results for PFODA, PFHxDA and their internal standard were reported from the re-extractions only. Results for all other target analytes and internal standards were reported from the original extractions. 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 138 of 138 SDG: 618763