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HomeMy WebLinkAbout613262_032123_1631 GEL DAQ Weeks of Oct 11-18, Nov 22-29, 2022 Nearfield & MB March 21, 2023 Jim Bowyer NCDENR 4403 Reedy Creek Road North Carolina Department of Environment Raleigh, North Carolina 27607 Re: NCDAQ Work Order: 613262 Dear Jim Bowyer: GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on March 07, 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 were received out of hold. 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 129 SDG: 613262 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: 613262 GEL Work Order: 613262 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 B The target analyte was detected in the associated blank. J Value is estimated U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier h Preparation or preservation holding time was exceeded for Page 2 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321340ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR30.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 0.526 4.21 4.21 0.526 0.526 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: 613262001 Water 18-OCT-22 13:00 07-MAR-23 W101122-02 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 1.58 1.39 0.210 0.210 1UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh Uh Uh UXh BXh UXh UXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 4.76 ND ND ND 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 Page 3 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321053 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23JMB3 0.421 2.10 4.21 4.21 4.13 3.96 4.00 4.04 4.21 4.21 4.21 4.21 4.21 1.87 2.10 2.04 2.10 2.10 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: 613262001 W101122-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.210 0.695 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 0.695 0.695 0.842 0.695 0.821 0.695 2 UXh Uh Uh Uh Uh Uh JBh 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 1.87 ND ND ND ND ND ND ND ND ND ND ND 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 Page 4 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 2.00 2.10 4.21 1.92 2.10 2.02 2.10 4.21 2.10 2.10 2.10 1.98 2.10 2.10 2.10 2.10 2.10 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: 613262001 W101122-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.695 0.695 1.39 0.695 0.842 0.737 0.695 1.39 0.695 0.842 0.842 0.695 0.695 0.842 0.695 0.695 0.695 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 11.4 ND ND ND ND ND ND 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/14/23 23980311052BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262001 W101122-02 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321102ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23JMB32.08 4.16 4.16 4.09 3.91 3.95 3.99 4.16 4.16 4.16 4.16 4.16 1.85 2.08 2.02 2.08 2.08 1.98 2.08 4.16 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: 613262002 Water 18-OCT-22 13:00 07-MAR-23 D101122-02 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.687 1.37 1.37 1.37 1.37 1.37 1.37 1.37 1.37 1.37 1.37 0.687 0.687 0.832 0.687 0.811 0.687 0.687 0.687 1.37 1Uh Uh Uh Uh Uh JBh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND 2.02 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 Page 7 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321355 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR3 1.89 2.08 2.00 2.08 4.16 2.08 2.08 2.08 1.96 2.08 2.08 2.08 2.08 2.08 0.520 0.520 0.520 0.520 0.520 0.520 0.520 0.520 0.520 0.520 0.520 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: 613262002 D101122-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.687 0.832 0.728 0.687 1.37 0.687 0.832 0.832 0.687 0.687 0.832 0.687 0.687 0.687 0.208 0.208 0.208 0.208 0.208 0.208 0.208 0.208 0.208 0.208 0.208 2 Uh Uh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh UXh h UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND 2.92 ND ND ND ND ND ND ND 2.55 ND ND ND ND ND ND ND ND ND 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 Page 8 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 0.520 0.520 0.520 0.520 0.520 0.520 0.520 4.16 4.16 0.520 0.520 0.416 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: 613262002 D101122-02 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.208 0.208 0.208 0.208 0.208 0.208 0.208 1.56 1.37 0.208 0.208 0.208 Xh Xh Xh JXh Uh Uh UXh BXh UXh Xh UXh JXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 1.45 1.32 0.846 0.225 ND ND ND 4.97 ND 1.30 ND 0.223 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 0.0208 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/14/23 23980311052BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262002 D101122-02 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321120ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23JMB31.97 3.94 3.94 3.87 3.71 3.75 3.79 3.94 3.94 3.94 3.94 3.94 1.76 1.97 1.91 1.97 1.97 1.87 1.97 3.94 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: 613262003 Water 18-OCT-22 10:05 07-MAR-23 W101122-MB NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.651 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 0.651 0.651 0.789 0.651 0.769 0.651 0.651 0.651 1.30 1Uh Uh Uh Uh Uh JBh 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 2.07 ND ND ND ND ND ND ND 1.48 ND ND ND ND ND ND 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 Page 11 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321410 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR3 1.79 1.97 1.89 1.97 3.94 1.97 1.97 1.97 1.85 1.97 1.97 1.97 1.97 1.97 0.493 0.493 0.493 0.493 0.493 0.493 0.493 0.493 0.493 0.493 0.493 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: 613262003 W101122-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.651 0.789 0.690 0.651 1.30 0.651 0.789 0.789 0.651 0.651 0.789 0.651 0.651 0.651 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 2 Uh Uh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND 7.15 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 Page 12 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 0.493 0.493 0.493 0.493 0.493 0.493 0.493 3.94 3.94 0.493 0.493 0.394 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: 613262003 W101122-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.197 0.197 0.197 0.197 0.197 0.197 0.197 1.48 1.30 0.197 0.197 0.197 UXh UXh UXh UXh Uh Uh UXh BXh UXh UXh UXh UXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND 4.71 ND ND ND ND 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 0.0197 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/14/23 23980311052BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262003 W101122-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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321425ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR30.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 0.504 4.03 4.03 0.504 0.504 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: 613262004 Water 18-OCT-22 10:05 07-MAR-23 D101122-MB 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 1.51 1.33 0.202 0.202 1UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh UXh UXh UXh Uh Uh UXh JBXh UXh UXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3.17 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 15 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321129 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23JMB3 0.403 2.02 4.03 4.03 3.96 3.79 3.83 3.87 4.03 4.03 4.03 4.03 4.03 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: 613262004 D101122-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.202 0.666 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 0.666 0.666 0.807 0.666 0.787 0.666 2 UXh Uh Uh Uh Uh Uh JBh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND 1.93 ND ND ND ND ND ND ND 1.50 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 16 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 4.03 1.84 2.02 1.94 2.02 4.03 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: 613262004 D101122-MB NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.666 0.666 1.33 0.666 0.807 0.706 0.666 1.33 0.666 0.807 0.807 0.666 0.666 0.807 0.666 0.666 0.666 Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Jh 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 1.81 ND ND ND ND ND 1.31 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 03/14/23 23980311052BP1 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 17 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262004 D101122-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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321440ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR30.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 0.511 4.09 4.09 0.511 0.511 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262005 Water 18-OCT-22 12:50 07-MAR-23 W101122-19 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 1.53 1.35 0.204 0.204 1UXh h UXh UXh UXh UXh UXh UXh UXh Uh Uh Xh Xh Xh Xh Uh Uh UXh BXh UXh Xh JXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 2.36 ND ND ND ND ND ND ND ND ND 3.22 8.43 14.4 3.26 ND ND ND 6.11 ND 1.10 0.254 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 19 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321138 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23JMB3 0.409 2.04 4.09 4.09 4.01 3.84 3.88 3.92 4.09 4.09 4.09 4.09 4.09 1.82 2.04 1.98 2.04 2.04 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262005 W101122-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.204 0.674 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 0.674 0.674 0.817 0.674 0.797 0.674 2 Xh Uh Uh Uh Uh Uh JBh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.512 ND ND ND ND ND 1.81 ND ND ND ND ND ND ND 0.891 ND ND ND 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 Page 20 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 1.94 2.04 4.09 1.86 2.04 1.96 2.04 4.09 2.04 2.04 2.04 1.92 2.04 2.04 2.04 2.04 2.04 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262005 W101122-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.674 0.674 1.35 0.674 0.817 0.715 0.674 1.35 0.674 0.817 0.817 0.674 0.674 0.817 0.674 0.674 0.674 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 16.4 ND ND ND ND ND ND 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 0.0204 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/14/23 23980311052BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262005 W101122-19 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441415ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/15/23RR30.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 0.507 4.06 4.06 0.507 0.507 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262006 Water 18-OCT-22 12:50 07-MAR-23 D101122-19 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 1.52 1.34 0.203 0.203 1UXh Jh UXh Xh UXh UXh UXh UXh UXh Uh Uh Xh Xh Xh JXh Uh Uh UXh BXh UXh JXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 0.427 ND 0.556 ND ND ND ND ND ND ND 0.526 0.999 1.19 0.240 ND ND ND 5.05 ND 0.277 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 23 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441325 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/14/23MB2 0.406 2.03 4.06 4.06 3.99 3.82 3.86 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: 613262006 D101122-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.203 0.670 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 0.670 0.670 0.812 0.670 0.792 0.670 2 UXh Uh Uh Uh Uh Uh Bh 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 8.73 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 24 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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: 613262006 D101122-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.670 0.670 1.34 0.670 0.812 0.710 0.670 1.34 0.670 0.812 0.812 0.670 0.670 0.812 0.670 0.670 0.670 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh 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 1.30 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 03/13/23 23972431302BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262006 D101122-19 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441430ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/15/23RR30.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 0.550 4.40 4.40 0.550 0.550 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: 613262007 Water 18-OCT-22 13:30 07-MAR-23 W101122-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 0.220 1.65 1.45 0.220 0.220 1UXh h UXh Xh UXh UXh UXh UXh UXh Uh Uh Xh Xh Xh Xh Uh Uh UXh BXh UXh Xh Xh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 1.23 ND 1.45 ND ND ND ND ND ND ND 2.06 2.99 3.23 0.696 ND ND ND 5.18 ND 2.00 7.61 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 Page 27 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441334 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/14/23MB2 0.440 2.20 4.40 4.40 4.32 4.14 4.18 4.22 4.40 4.40 4.40 4.40 4.40 1.96 2.20 2.13 2.20 2.20 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: 613262007 W101122-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.220 0.726 1.45 1.45 1.45 1.45 1.45 1.45 1.45 1.45 1.45 1.45 0.726 0.726 0.880 0.726 0.858 0.726 2 Xh Uh Uh Uh Uh Uh Bh 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" 15.0 ND ND ND ND ND 10.7 ND ND ND ND ND ND ND ND ND ND ND 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 Page 28 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 2.09 2.20 4.40 2.00 2.20 2.11 2.20 4.40 2.20 2.20 2.20 2.07 2.20 2.20 2.20 2.20 2.20 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: 613262007 W101122-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.726 0.726 1.45 0.726 0.880 0.770 0.726 1.45 0.726 0.880 0.880 0.726 0.726 0.880 0.726 0.726 0.726 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 4.17 ND ND ND ND ND ND 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 0.0220 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/13/23 23972431302BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262007 W101122-21C 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 30 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441342ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/14/23MB22.02 4.04 4.04 3.97 3.80 3.84 3.88 4.04 4.04 4.04 4.04 4.04 1.80 2.02 1.96 2.02 2.02 1.92 2.02 4.04 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: 613262008 Water 18-OCT-22 13:30 07-MAR-23 D101122-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.667 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 0.667 0.667 0.808 0.667 0.788 0.667 0.667 0.667 1.33 1Uh Uh Uh Uh Uh Bh 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 8.72 ND ND ND ND ND ND ND 1.14 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 Page 31 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441445 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/15/23RR3 1.84 2.02 1.94 2.02 4.04 2.02 2.02 2.02 1.90 2.02 2.02 2.02 2.02 2.02 0.505 0.505 0.505 0.505 0.505 0.505 0.505 0.505 0.505 0.505 0.505 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: 613262008 D101122-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.667 0.808 0.707 0.667 1.33 0.667 0.808 0.808 0.667 0.667 0.808 0.667 0.667 0.667 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 2 Uh Uh Uh Uh Uh Uh Uh h 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 3.54 ND ND ND ND ND ND ND 3.32 ND 2.62 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 0.0202 0.0202 0.0202 Page 32 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 0.505 0.505 0.505 0.505 0.505 0.505 0.505 4.04 4.04 0.505 0.505 0.404 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: 613262008 D101122-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.202 0.202 0.202 0.202 0.202 0.202 0.202 1.51 1.33 0.202 0.202 0.202 Xh Xh Xh Xh Uh Uh UXh BXh UXh Xh Xh Xh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 5.85 10.5 10.8 1.42 ND ND ND 5.27 ND 3.98 0.960 2.36 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 03/13/23 23972431302BP1 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 33 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262008 D101122-21C 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 34 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441351ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/14/23MB21.99 3.98 3.98 3.91 3.74 3.82 3.98 3.98 3.98 3.98 3.98 1.77 1.99 1.93 1.99 1.99 1.89 1.99 3.98 1.81 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262009 Water 18-OCT-22 12:35 07-MAR-23 W101122-32 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.657 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 0.657 0.657 0.796 0.657 0.776 0.657 0.657 0.657 1.31 0.657 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 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 3.58 ND ND ND ND ND ND ND 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 Page 35 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441500 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/15/23RR3 1.99 1.91 1.99 3.98 1.99 1.99 1.99 1.87 1.99 1.99 1.99 1.99 1.99 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 0.498 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 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262009 W101122-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.796 0.697 0.657 1.31 0.657 0.796 0.796 0.657 0.657 0.796 0.657 0.657 0.657 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 2 Uh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh UXh Jh UXh UXh UXh UXh UXh UXh UXh Uh Uh UXh (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 acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND 12.7 ND ND ND ND ND ND ND 0.231 ND ND ND ND ND ND ND ND ND ND 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 Page 36 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441151 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/21/23MB2 0.498 0.498 0.498 0.498 0.498 0.498 3.98 3.98 0.498 0.498 0.398 18.9 1 1 1 1 1 1 1 1 1 1 1 5 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262009 W101122-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.199 0.199 0.199 0.199 0.199 0.199 1.49 1.31 0.199 0.199 0.199 6.57 3 JXh Xh JXh Uh Uh UXh BXh UXh UXh UXh UXh JBh 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) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.432 0.927 0.229 ND ND ND 6.49 ND ND ND ND 10.8 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 03/13/23 23972431302BP1 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 37 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262009 W101122-32 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 38 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972442128ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/15/23MB22.10 4.19 4.19 4.12 3.94 3.98 4.03 4.19 4.19 4.19 4.19 4.19 1.87 2.10 2.03 2.10 2.10 1.99 2.10 4.19 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: 613262010 Water 18-OCT-22 12:35 07-MAR-23 D101122-32 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.692 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 0.692 0.692 0.839 0.692 0.818 0.692 0.692 0.692 1.38 1Uh Uh Uh Uh Uh Bh 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 10.2 ND ND ND ND ND ND ND 1.66 ND ND ND ND ND ND 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 Page 39 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441515 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/15/23RR3 1.91 2.10 2.01 2.10 4.19 2.10 2.10 2.10 1.97 2.10 2.10 2.10 2.10 2.10 0.524 0.524 0.524 0.524 0.524 0.524 0.524 0.524 0.524 0.524 0.524 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: 613262010 D101122-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.692 0.839 0.734 0.692 1.38 0.692 0.839 0.839 0.692 0.692 0.839 0.692 0.692 0.692 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 2 Uh Jh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh UXh Jh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND 1.91 ND ND ND ND ND 3.36 ND ND ND ND ND ND ND 0.235 ND ND ND ND ND ND ND ND ND 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 Page 40 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 0.524 0.524 0.524 0.524 0.524 0.524 0.524 4.19 4.19 0.524 0.524 0.419 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: 613262010 D101122-32 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.210 0.210 0.210 0.210 0.210 0.210 0.210 1.57 1.38 0.210 0.210 0.210 UXh JXh JXh UXh Uh Uh UXh BXh UXh UXh UXh UXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND 0.256 0.434 ND ND ND ND 4.31 ND ND ND ND 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 0.0210 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/13/23 23972431302BP1 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 41 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262010 D101122-32 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 42 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321455ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR30.506 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 4.05 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: 613262011 Water 18-OCT-22 13:30 07-MAR-23 D101122-21WD 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 1.52 1.34 0.202 0.202 1UXh h UXh UXh UXh UXh UXh UXh UXh Uh Uh Xh Xh Xh Xh Uh Uh UXh BXh UXh Xh Xh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 3.38 ND ND ND ND ND ND ND ND ND 4.85 8.67 11.8 2.26 ND ND ND 5.76 ND 3.85 1.48 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 43 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321147 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23JMB3 0.405 2.02 4.05 4.05 3.97 3.80 3.84 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: 613262011 D101122-21WD NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.202 0.668 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 0.668 0.668 0.809 0.668 0.789 0.668 2 Xh Uh Uh Uh Uh Uh JBh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" 3.56 ND ND ND ND ND 2.08 ND ND ND ND ND ND ND 1.85 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 44 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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: 613262011 D101122-21WD NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.668 0.668 1.34 0.668 0.809 0.708 0.668 1.34 0.668 0.809 0.809 0.668 0.668 0.809 0.668 0.668 0.668 Uh Uh Uh Uh Jh 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 1.96 ND ND ND ND ND 2.65 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 03/14/23 23980311052BP1 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 45 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262011 D101122-21WD 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321156ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23JMB32.03 4.07 4.07 3.99 3.82 3.86 3.90 4.07 4.07 4.07 4.07 4.07 1.81 2.03 1.97 2.03 2.03 1.93 2.03 4.07 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: 613262012 Water 18-OCT-22 12:50 07-MAR-23 D101122-33 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.671 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 1.34 0.671 0.671 0.813 0.671 0.793 0.671 0.671 0.671 1.34 1Uh Uh Uh Uh Uh JBh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND 1.67 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 Page 47 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980322048 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/15/23RR3 1.85 2.03 1.95 2.03 4.07 2.03 2.03 2.03 1.91 2.03 2.03 2.03 2.03 2.03 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 0.508 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 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262012 D101122-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 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 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 0.203 2 Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Uh UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND 1.39 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 0.0203 0.0203 0.0203 Page 48 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 0.508 0.508 0.508 0.508 0.508 0.508 0.508 4.07 4.07 0.508 0.508 0.407 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: 613262012 D101122-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.203 0.203 0.203 0.203 0.203 0.203 0.203 1.52 1.34 0.203 0.203 0.203 UXh UXh UXh UXh Uh Uh UXh BXh UXh JXh UXh UXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND 4.62 ND 0.235 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 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/14/23 23980311052BP1 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 49 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262012 D101122-33 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 50 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980321205ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23JMB32.18 4.35 4.35 4.27 4.09 4.13 4.18 4.35 4.35 4.35 4.35 4.35 1.94 2.18 2.11 2.18 2.18 2.07 2.18 4.35 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: 613262013 Water 18-OCT-22 12:50 07-MAR-23 W101122-33 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.718 1.44 1.44 1.44 1.44 1.44 1.44 1.44 1.44 1.44 1.44 0.718 0.718 0.870 0.718 0.848 0.718 0.718 0.718 1.44 1Uh Uh Uh Uh Uh JBh 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 2.05 ND ND ND ND ND ND ND 1.27 ND ND ND ND ND ND 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 Page 51 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23980322103 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/15/23RR3 1.98 2.18 2.09 2.18 4.35 2.18 2.18 2.18 2.04 2.18 2.18 2.18 2.18 2.18 0.544 0.544 0.544 0.544 0.544 0.544 0.544 0.544 0.544 0.544 0.544 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: 613262013 W101122-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.718 0.870 0.761 0.718 1.44 0.718 0.870 0.870 0.718 0.718 0.870 0.718 0.718 0.718 0.218 0.218 0.218 0.218 0.218 0.218 0.218 0.218 0.218 0.218 0.218 2 Uh Uh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh UXh Jh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND 14.9 ND ND ND ND ND ND ND 0.358 ND ND ND ND ND ND ND ND ND 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 Page 52 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 0.544 0.544 0.544 0.544 0.544 0.544 0.544 4.35 4.35 0.544 0.544 0.435 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: 613262013 W101122-33 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.218 0.218 0.218 0.218 0.218 0.218 0.218 1.63 1.44 0.218 0.218 0.218 UXh JXh Xh JXh Uh Uh UXh BXh UXh UXh UXh UXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND 0.522 1.11 0.270 ND ND ND 6.14 ND ND ND ND 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 0.0218 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/14/23 23980311052BP1 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 53 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262013 W101122-33 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 54 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24000111358ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/17/23JMB31.99 3.97 3.97 3.90 3.74 3.78 3.82 3.97 3.97 3.97 3.97 3.97 1.77 1.99 1.93 1.99 1.99 1.89 1.99 3.97 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: 613262014 Water 29-NOV-22 13:50 07-MAR-23 W112222-21 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.656 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 0.656 0.656 0.795 0.656 0.775 0.656 0.656 0.656 1.31 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 0.997 ND ND ND ND ND ND 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 Page 55 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24000110843 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/18/23RR3 1.81 1.99 1.91 1.99 3.97 1.99 1.99 1.99 1.87 1.99 1.99 1.99 1.99 1.99 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 0.497 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262014 W112222-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.656 0.795 0.695 0.656 1.31 0.656 0.795 0.795 0.656 0.656 0.795 0.656 0.656 0.656 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 0.199 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh UXh h UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.532 ND ND ND ND ND ND ND ND ND 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 0.0199 Page 56 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 0.497 0.497 0.497 0.497 0.497 0.497 0.497 3.97 3.97 0.497 0.497 0.397 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: 613262014 W112222-21 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.199 0.199 0.199 0.199 0.199 0.199 0.199 1.49 1.31 0.199 0.199 0.199 JXh JXh Xh Xh Uh Uh UXh BXh UXh UXh JXh Xh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.218 0.364 1.34 2.06 ND ND ND 8.62 ND ND 0.390 0.491 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 03/17/23 24000010844DK2 Method Description Analyst Date Time Prep Batch The following Analytical Methods were performed: 1 2 Method Description EPA 537.1 Modified EPA 537.1 Modified Analyst Comments Notes: Page 57 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262014 W112222-21 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 58 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24000111407ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/17/23JMB32.02 4.04 4.04 3.97 3.80 3.84 3.88 4.04 4.04 4.04 4.04 4.04 1.80 2.02 1.96 2.02 2.02 1.92 2.02 4.04 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: 613262015 Water 29-NOV-22 13:50 07-MAR-23 W112222-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.666 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 0.666 0.666 0.808 0.666 0.788 0.666 0.666 0.666 1.33 1Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 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) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND 2.54 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 Page 59 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24000110858 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/18/23RR3 1.84 2.02 1.94 2.02 4.04 2.02 2.02 2.02 1.90 2.02 2.02 2.02 2.02 2.02 0.505 0.505 0.505 0.505 0.505 0.505 0.505 0.505 0.505 0.505 0.505 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: 613262015 W112222-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.666 0.808 0.707 0.666 1.33 0.666 0.808 0.808 0.666 0.666 0.808 0.666 0.666 0.666 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 0.202 2 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 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 ND ND ND ND ND ND ND ND 2.33 ND 0.248 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 0.0202 0.0202 0.0202 Page 60 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 0.505 0.505 0.505 0.505 0.505 0.505 0.505 4.04 4.04 0.505 0.505 0.404 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: 613262015 W112222-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.202 0.202 0.202 0.202 0.202 0.202 0.202 1.51 1.33 0.202 0.202 0.202 JXh Xh Xh Xh Uh Uh UXh BXh UXh UXh JXh Xh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.345 0.979 2.48 4.79 ND ND ND 9.10 ND ND 0.364 1.02 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 03/17/23 24000010844DK2 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262015 W112222-21C 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 62 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24000110928ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/18/23RR30.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 3.93 3.93 0.491 0.491 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262016 Water 29-NOV-22 13:50 07-MAR-23 D112222-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 0.196 1.47 1.30 0.196 0.196 1UXh h UXh JXh UXh UXh UXh UXh UXh Uh Uh UXh Xh Xh Xh Uh Uh UXh BXh UXh JXh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 1.53 ND 0.262 ND ND ND ND ND ND ND ND 0.534 1.12 1.60 ND ND ND 5.70 ND 0.211 ND 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 Page 63 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 24000111416 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/17/23JMB3 0.393 1.96 3.93 3.93 3.86 3.69 3.73 3.77 3.93 3.93 3.93 3.93 3.93 1.75 1.96 1.90 1.96 1.96 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262016 D112222-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.196 0.648 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 0.648 0.648 0.786 0.648 0.766 0.648 2 JXh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" 0.308 ND ND ND ND ND ND ND ND ND ND ND ND ND 1.34 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 64 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 1.87 1.96 3.93 1.79 1.96 1.89 1.96 3.93 1.96 1.96 1.96 1.85 1.96 1.96 1.96 1.96 1.96 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262016 D112222-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.648 0.648 1.30 0.648 0.786 0.687 0.648 1.30 0.648 0.786 0.786 0.648 0.648 0.786 0.648 0.648 0.648 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 0.0196 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/17/23 24000010844DK2 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262016 D112222-21C 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 66 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441417ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/14/23MB22.01 4.02 4.02 3.95 3.78 3.82 3.86 4.02 4.02 4.02 4.02 4.02 1.79 2.01 1.95 2.01 2.01 1.91 2.01 4.02 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: 613262017 Water 11-OCT-22 11:55 07-MAR-23 W100422-19 NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.664 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 0.664 0.664 0.805 0.664 0.785 0.664 0.664 0.664 1.33 1Uh Uh Uh Uh Uh Bh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND 9.58 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 Page 67 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441023 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR3 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 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 0.503 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 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262017 W100422-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.664 0.805 0.704 0.664 1.33 0.664 0.805 0.805 0.664 0.664 0.805 0.664 0.664 0.664 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 2 Uh Uh Uh Uh Uh Uh Uh h Uh Uh Uh Uh Uh Uh UXh Uh UXh UXh UXh UXh UXh UXh UXh Uh Uh (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND 9.31 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 0.0201 0.0201 0.0201 Page 68 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 0.503 0.503 0.503 0.503 0.503 0.503 0.503 4.02 4.02 0.503 0.503 0.402 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: 613262017 W100422-19 NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.201 0.201 0.201 0.201 0.201 0.201 0.201 1.51 1.33 0.201 0.201 0.201 UXh UXh UXh UXh Uh Uh UXh BXh UXh UXh UXh UXh acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND 5.20 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 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/13/23 23972431302BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262017 W100422-19 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 70 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441038ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR30.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 4.12 4.12 0.515 0.515 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: 613262018 Water 11-OCT-22 12:50 07-MAR-23 D100422-21WD NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 1.54 1.36 0.206 0.206 1UXh h UXh Xh UXh UXh UXh UXh UXh Uh Uh Xh Xh Xh Xh Uh Uh UXh BXh UXh Xh JXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 0.702 ND 0.956 ND ND ND ND ND ND ND 3.86 3.09 3.02 0.648 ND ND ND 4.63 ND 5.25 0.302 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 Page 71 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441425 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/14/23MB2 0.412 2.06 4.12 4.12 4.04 3.87 3.91 3.95 4.12 4.12 4.12 4.12 4.12 1.83 2.06 2.00 2.06 2.06 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: 613262018 D100422-21WD NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.206 0.679 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 0.679 0.679 0.823 0.679 0.803 0.679 2 Xh Uh Uh Uh Uh Uh Bh Uh Uh Uh Uh Uh Uh Uh h 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" 0.785 ND ND ND ND ND 12.3 ND ND ND ND ND ND ND 3.10 ND ND ND 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 Page 72 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 1.96 2.06 4.12 1.87 2.06 1.98 2.06 4.12 2.06 2.06 2.06 1.94 2.06 2.06 2.06 2.06 2.06 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: 613262018 D100422-21WD NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.679 0.679 1.36 0.679 0.823 0.720 0.679 1.36 0.679 0.823 0.823 0.679 0.679 0.823 0.679 0.679 0.679 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/13/23 23972431302BP1 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 73 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262018 D100422-21WD 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441053ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR30.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 0.480 3.84 3.84 0.480 0.480 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262019 Water 11-OCT-22 12:50 07-MAR-23 W100422-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 0.192 1.44 1.27 0.192 0.192 1UXh Jh UXh UXh UXh UXh UXh UXh UXh Uh Uh Xh Xh Xh UXh Uh Uh UXh BXh UXh Xh UXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 0.341 ND ND ND ND ND ND ND ND ND 1.82 1.03 0.786 ND ND ND ND 3.94 ND 3.12 ND 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 Page 75 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441434 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/14/23MB2 0.384 1.92 3.84 3.84 3.77 3.61 3.65 3.68 3.84 3.84 3.84 3.84 3.84 1.71 1.92 1.86 1.92 1.92 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: 613262019 W100422-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.192 0.633 1.27 1.27 1.27 1.27 1.27 1.27 1.27 1.27 1.27 1.27 0.633 0.633 0.767 0.633 0.748 0.633 2 UXh Uh Uh Uh Uh Uh Bh Uh Uh Uh Uh Uh Uh Uh Jh Uh Uh Uh (PEPA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Perfluorododecanesulfonic acid (PFDoS) Perfluorobutanesulfonic acid (PFBS) Perfluorobutanoic acid (PFBA) Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanoic acid (PFDOA) EPA 537Mod PFCs by LC-MS/MS "As Received" ND ND ND ND ND ND 13.0 ND ND ND ND ND ND ND 1.77 ND ND ND 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 Page 76 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 1.82 1.92 3.84 1.75 1.92 1.84 1.92 3.84 1.92 1.92 1.92 1.80 1.92 1.92 1.92 1.92 1.92 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: 613262019 W100422-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.633 0.633 1.27 0.633 0.767 0.672 0.633 1.27 0.633 0.767 0.767 0.633 0.633 0.767 0.633 0.633 0.633 Uh Uh Uh Uh Uh Uh Uh Uh Uh Uh Jh 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 1.47 ND ND ND ND ND ND 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 0.0192 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/13/23 23972431302BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262019 W100422-21C 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 78 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441109ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/16/23RR30.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 0.515 4.12 4.12 0.515 0.515 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: 613262020 Water 11-OCT-22 12:50 07-MAR-23 D100422-21C NCDQ00122Project: NCDQ001Client ID: Client Sample ID: Receive Date: North Carolina Department of Environment Client Sample ID: Matrix: Collect Date: Collector: 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 0.206 1.54 1.36 0.206 0.206 1UXh h UXh Xh UXh UXh UXh UXh UXh Uh Uh Xh Xh Xh JXh Uh Uh UXh BXh UXh Xh JXh 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3-heptafluoropropoxy)- propanoic acid (Gen-X) 4- (Heptafluoroisopropoxy)hexafluorob utanoic acid (PFECA-G) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Hydro-EVE Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro-2-methoxyacetic acid (PFMOAA) Perfluoro-3-methoxypropanoic acid (PFMOPrA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoroethoxypropionic acid (EVE) Perfluoropropanoic acid (PFPrA) R-EVE Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid EPA 537Mod PFCs by LC-MS/MS "As Received" ND 0.653 ND 3.68 ND ND ND ND ND ND ND 2.96 2.29 1.95 0.387 ND ND ND 4.44 ND 4.97 0.300 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 Page 79 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF LCMSMS PFCs 23972441443 ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L 03/14/23MB2 0.412 2.06 4.12 4.12 4.05 3.87 3.91 3.96 4.12 4.12 4.12 4.12 4.12 1.83 2.06 2.00 2.06 2.06 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: 613262020 D100422-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.206 0.680 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 0.680 0.680 0.824 0.680 0.803 0.680 2 Xh Uh Uh Uh Uh Uh Bh Uh Uh Uh Uh Uh Uh Uh h 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" 0.559 ND ND ND ND ND 11.6 ND ND ND ND ND ND ND 3.16 ND ND ND 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 Page 80 of 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 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 1.96 2.06 4.12 1.87 2.06 1.98 2.06 4.12 2.06 2.06 2.06 1.94 2.06 2.06 2.06 2.06 2.06 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: 613262020 D100422-21C NCDQ00122Project: NCDQ001Client ID:Sample ID: North Carolina Department of Environment Client Sample ID: 0.680 0.680 1.36 0.680 0.824 0.721 0.680 1.36 0.680 0.824 0.824 0.680 0.680 0.824 0.680 0.680 0.680 Uh Uh Uh Uh Jh Uh Uh Uh Uh Uh Jh 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 0.833 ND ND ND ND ND 1.28 ND ND ND ND ND ND 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 0.0206 The following Prep Methods were performed: EPA 537.1 Modified PFCs Extraction in Liquid 03/13/23 23972431302BP1 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 129 SDG: 613262 Certificate of Analysis GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Report Date: March 21, 2023 Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF Jim BowyerContact: NCDENRCompany : 4403 Reedy Creek Road Raleigh, North Carolina 27607 Address : NCDAQProject: 613262020 D100422-21C 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 82 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch 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 March 21, 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 MB2 RR3 MB2 RR3 MB2 RR3 03/15/23 13:14 03/21/23 11:34 03/15/23 13:14 03/21/23 11:34 03/15/23 13:14 03/21/23 11:34 03/15/23 13:14 QC 24.5 19.5 21.2 22.8 22.6 23.8 21.6 23.5 20.0 18.7 25.0 19.0 23.0 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 B X QC1205343057 REC% 127 107 109 118 117 123 112 122 111 103 136 102 119 19.3 18.2 19.3 19.3 19.3 19.3 19.3 19.3 18.0 18.1 18.4 18.6 19.3 LCS 613262Workorder: North Carolina Department of Environment RPD/D% Page 1 of 36 Page 83 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time MB2 RR3 03/21/23 11:34 03/15/23 13:14 QC 27.4 21.7 25.4 23.9 9.85 22.5 19.6 23.7 22.5 23.1 23.7 23.7 22.3 20.8 23.0 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% 142 112 131 124 51 117 102 123 116 119 123 122 115 108 119 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 613262Workorder: RPD/D% Page 2 of 36 Page 84 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch 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 MB2 RR3 MB2 03/15/23 13:14 03/21/23 11:34 03/15/23 13:14 03/21/23 11:34 QC 22.6 22.6 21.8 23.3 21.4 23.2 19.7 23.2 20.8 22.8 12.6 23.8 22.3 22.7 20.5 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% 117 117 113 121 125 120 105 120 111 118 65 130 115 117 116 19.3 19.3 19.3 19.3 17.1 19.3 18.7 19.3 18.7 19.3 19.3 18.4 19.3 19.3 17.6 613262Workorder: RPD/D% Page 3 of 36 Page 85 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time MB2 RR3 MB2 RR3 03/21/23 11:34 03/15/23 13:14 03/21/23 11:34 03/15/23 13:14 03/15/23 13:29 QC 25.3 19.3 21.4 17.6 24.7 22.3 22.5 21.3 23.8 25.9 23.1 21.8 23.7 21.3 24.3 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 BX X X QC1205343058 1 REC% 131 104 110 91 128 116 116 117 123 134 119 113 122 110 125 19.3 18.6 19.3 19.3 19.3 19.3 19.3 18.2 19.3 19.3 19.3 19.3 19.3 19.3 19.5 LCSD 613262Workorder: RPD/D% Page 4 of 36 Page 86 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 4- (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) Hydro-EVE N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time MB2 RR3 MB2 RR3 MB2 RR3 MB2 03/14/23 12:59 03/15/23 13:29 03/14/23 12:59 03/15/23 13:29 03/14/23 12:59 03/15/23 13:29 03/14/23 12:59 QC 16.7 19.1 23.1 23.2 20.2 24.1 26.0 19.9 20.1 43.6 21.8 22.6 22.3 20.3 20.3 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 B X 16 10 1 3 17 11 10 0 7 54 14 1 21 7 22 REC% 90 98 118 119 103 123 133 109 110 235 116 116 114 104 104 18.4 19.5 19.5 19.5 19.5 19.5 19.5 18.2 18.3 18.6 18.8 19.5 19.5 19.5 19.5 613262Workorder: ** RPD/D% Page 5 of 36 Page 87 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Nafion Byproduct 4 (PFESA BP4) Nafion Byproduct 5 (PFESA BP5) Nafion Byproduct 6 (PFESA BP6) Nonafluoro-3,6-dioxaheptanoic acid (NFDHA or PFECA B) Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA or PES) Perfluoro(3,5,7,9,11- pentaoxadodecanoic) acid (PFO5DA or TAFN4) Perfluoro(3,5,7,9-tetraoxadecanoic) acid (PFO4DA) Perfluoro(3,5,7-trioxaoctanoic) acid (PFO3OA) Perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) Perfluoro(4-methoxybutanoic) acid (PFMOBA) Perfluoro-2- (perfluoromethoxy)propanoic acid (PMPA) Perfluoro-2-methoxyacetic acid (PFMOAA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time MB2 RR3 03/14/23 12:59 03/15/23 13:29 QC 21.6 9.42 23.0 15.7 23.9 22.3 23.0 23.3 23.9 22.8 22.2 23.3 23.1 23.1 22.5 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 10 5 2 22 1 1 0 2 1 2 6 1 2 2 3 REC% 110 48 118 80 122 114 118 119 122 117 113 119 118 118 115 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 19.5 613262Workorder: RPD/D% Page 6 of 36 Page 88 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch 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 MB2 RR3 MB2 03/15/23 13:29 03/14/23 12:59 03/15/23 13:29 03/14/23 12:59 QC 22.1 20.1 24.9 21.2 22.8 21.1 23.6 12.7 21.4 22.7 21.3 18.2 18.9 18.8 22.8 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 5 6 7 7 2 1 3 1 11 2 6 12 29 3 7 REC% 113 117 127 112 117 112 121 65 116 116 109 102 97 100 117 19.5 17.3 19.5 18.9 19.5 18.9 19.5 19.5 18.6 19.5 19.5 17.8 19.5 18.8 19.5 613262Workorder: * RPD/D% Page 7 of 36 Page 89 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Perfluorooctanoic acid (PFOA) Perfluoropentanesulfonic acid (PFPeS) Perfluoropentanoic acid (PFPeA) Perfluoropropanoic acid (PFPrA) Perfluorotetradecanoic acid (PFTA) Perfluorotridecanoic Acid (PFTriA) Perfluoroundecanoic acid (PFUnA) R-EVE 1,1,2,2-Tetrafluoro-2-(1,2,2,2- tetrafluoroethoxy)ethane sulfonic acid (NVHOS) 11-Chloroeicosafluoro-3- oxaundecane-1-sulfonic acid (F- 53B Minor) 2,3,3,3-Tetrafluoro-2- (1,1,2,2,3,3,3- heptafluoropropoxy)-propanoic acid (Gen-X) 2,3,3,3-Tetrafluoro-2- (pentafluoroethoxy)propanoic acid (PEPA) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time MB2 RR3 MB2 RR3 MB2 RR3 03/14/23 12:59 03/15/23 13:29 03/14/23 12:59 03/15/23 13:29 03/15/23 12:59 03/14/23 12:42 03/15/23 12:59 QC 18.6 25.4 20.9 23.6 20.7 24.3 26.7 22.2 20.7 22.8 19.8 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 BX X UX U U UX QC1205343056 6 3 7 5 2 2 3 4 5 4 7 REC% 95 130 107 121 113 124 137 113 106 117 101 19.5 19.5 19.5 19.5 18.4 19.5 19.5 19.5 19.5 19.5 19.5 MB 613262Workorder: RPD/D% Page 8 of 36 Page 90 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch 2-(N-ethylperfluoro-1- octanesulfonamido)-ethanol (N- EtFOSE) 2-(N-methylperfluoro-1- octanesulfonamido)-ethanol (N- MeFOSE) 4,8-Dioxa-3H-perfluorononanoic acid (DONA,ADONA) 4- (Heptafluoroisopropoxy)hexafluoro butanoic acid (PFECA-G) 9-Chlorohexadecafluoro-3- oxanonane-1-sulfonic acid (F-53B Major) Fluorotelomer sulfonic acid 4:2 (4:2 FTS) Fluorotelomer sulfonic acid 6:2 (6:2 FTS) Fluorotelomer sulfonic acid 8:2 (8:2 FTS) Hydro-EVE N-ethylperfluoro-1- octanesulfonamide (N-EtFOSA) N-ethylperfluoro-1- octanesulfonamidoacetic acid (N- EtFOSAA) N-methylperfluoro-1- octanesulfonamide (N-MeFOSA) N-methylperfluoro-1- octanesulfonamidoacetic acid (N- MeFOSAA) Nafion Byproduct 1 (PFESA BP1) Nafion Byproduct 2 (PFESA BP2) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time MB2 RR3 MB2 RR3 MB2 RR3 03/14/23 12:42 03/15/23 12:59 03/14/23 12:42 03/15/23 12:59 03/14/23 12:42 03/15/23 12:59 QC ND ND ND ND ND ND 9.21 ND ND ND ND ND ND ND ND NOM Sample RangeQual U U U UX U U U UX U U U U UX UX REC% 613262Workorder: RPD/D% Page 9 of 36 Page 91 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch 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 MB2 03/15/23 12:59 03/14/23 12:42 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% 613262Workorder: RPD/D% Page 10 of 36 Page 92 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244Batch Perfluorodecanesulfonic acid (PFDS) Perfluorodecanoic acid (PFDA) Perfluorododecanesulfonic acid (PFDoS) Perfluorododecanoic acid (PFDOA) Perfluoroethoxypropionic acid (EVE) Perfluoroheptanesulfonic acid (PFHpS) Perfluoroheptanoic acid (PFHpA) Perfluorohexadecanoic acid (PFHxDA) Perfluorohexanesulfonic acid (PFHxS) Perfluorohexanoic acid (PFHxA) Perfluorononanesulfonic acid (PFNS) Perfluorononanoic acid (PFNA) Perfluorooctadecanoic acid (PFODA) Perfluorooctanesulfonamide (PFOSA) Perfluorooctanesulfonic acid (PFOS) Parmname Units ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L ng/L Anlst Date Time MB2 RR3 MB2 03/14/23 12:42 03/15/23 12:59 03/14/23 12:42 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% 613262Workorder: RPD/D% Page 11 of 36 Page 93 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2397244 2398032 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 MB2 RR3 MB2 RR3 RR3 JMB3 RR3 JMB3 03/14/23 12:42 03/15/23 12:59 03/14/23 12:42 03/15/23 12:59 03/16/23 12:54 03/16/23 10:27 03/16/23 12:54 03/16/23 10:27 QC ND ND ND 4.32 ND ND ND ND 18.3 17.1 19.6 21.8 21.8 23.6 NOM Sample Range (60%-158%) (59%-144%) (67%-144%) (58%-144%) (54%-128%) (52%-141%) Qual U U U X U U U UX X X QC1205344916 REC% 95 94 102 113 113 122 19.3 18.2 19.3 19.3 19.3 19.3 LCS 613262Workorder: RPD/D% Page 12 of 36 Page 94 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 10:27 03/16/23 12:54 03/16/23 10:27 03/16/23 12:54 03/16/23 10:27 03/16/23 12:54 QC 22.1 24.8 18.7 15.1 21.4 19.2 22.4 24.3 21.1 28.9 21.1 9.02 21.2 ND ND 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 B X X X UX UX REC% 115 129 104 84 117 104 116 126 109 150 110 47 110 0 0 19.3 19.3 18.0 18.0 18.3 18.5 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 613262Workorder: * * RPD/D% Page 13 of 36 Page 95 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 12:54 03/16/23 10:27 QC 20.4 21.0 18.9 22.1 21.7 21.0 21.8 20.7 21.3 18.8 22.4 18.6 21.2 18.4 19.5 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% 106 109 98 115 113 109 113 108 110 97 116 109 110 99 101 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 17.1 19.3 18.6 19.3 613262Workorder: RPD/D% Page 14 of 36 Page 96 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 10:27 03/16/23 12:54 03/16/23 10:27 QC 20.8 22.6 13.8 20.9 19.6 22.5 18.2 22.4 18.8 20.6 23.6 22.9 20.7 21.8 17.3 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% 111 117 71 114 102 117 104 116 102 107 122 119 107 113 96 18.7 19.3 19.3 18.3 19.3 19.3 17.6 19.3 18.5 19.3 19.3 19.3 19.3 19.3 18.1 613262Workorder: RPD/D% Page 15 of 36 Page 97 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 10:27 03/16/23 12:54 03/16/23 10:27 03/16/23 12:54 03/16/23 13:09 03/16/23 10:35 03/16/23 13:09 03/16/23 10:35 03/16/23 13:09 03/16/23 10:35 QC 21.4 21.5 21.3 20.6 19.6 ND 20.2 18.4 21.4 23.2 25.9 25.7 21.3 22.9 21.1 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 BX UX X X X QC1205344917 10 7 9 6 17 9 4 8 12 REC% 111 112 110 107 102 0 104 100 109 119 133 131 109 117 116 19.3 19.3 19.3 19.3 19.3 19.3 19.6 18.4 19.6 19.6 19.6 19.6 19.6 19.6 18.2 LCSD 613262Workorder: * * RPD/D% Page 16 of 36 Page 98 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 10:35 03/16/23 13:09 03/16/23 10:35 03/16/23 13:09 QC 16.8 26.1 22.4 21.8 24.7 25.5 30.6 23.3 7.93 21.5 ND ND 20.3 23.0 20.2 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 B X X X UX UX X 10 20 16 3 2 19 6 10 13 1 N/A N/A 0 9 7 REC% 92 141 119 111 126 130 156 119 41 110 0 0 104 118 103 18.3 18.6 18.8 19.6 19.6 19.6 19.6 19.6 19.6 19.6 19.6 19.6 19.6 19.6 19.6 613262Workorder: * * * RPD/D% Page 17 of 36 Page 99 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 13:09 03/16/23 10:35 03/16/23 13:09 QC 24.7 22.6 22.1 21.6 22.9 22.1 20.6 21.7 20.5 22.6 20.0 22.4 23.0 24.1 12.6 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 11 4 5 1 10 4 9 3 10 6 8 14 10 6 9 REC% 126 116 113 110 117 113 106 111 119 115 106 115 122 123 64 19.6 19.6 19.6 19.6 19.6 19.6 19.6 19.6 17.3 19.6 18.9 19.6 18.9 19.6 19.6 613262Workorder: RPD/D% Page 18 of 36 Page 100 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 10:35 03/16/23 13:09 03/16/23 10:35 QC 22.8 23.9 24.4 19.1 25.1 20.7 22.7 26.4 23.4 23.3 20.9 17.8 22.6 23.7 22.4 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 BX 9 20 8 5 11 9 10 11 2 12 4 3 5 10 5 REC% 123 122 125 107 128 110 116 135 120 119 107 97 115 121 114 18.6 19.6 19.6 17.8 19.6 18.8 19.6 19.6 19.6 19.6 19.6 18.4 19.6 19.6 19.6 613262Workorder: RPD/D% Page 19 of 36 Page 101 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 10:35 03/16/23 13:09 03/16/23 12:39 03/16/23 10:18 03/16/23 12:39 03/16/23 10:18 03/16/23 12:39 03/16/23 10:18 QC 20.3 23.5 ND ND ND ND ND ND ND ND ND ND ND 1.63 ND NOM Sample Range (0%-31%) (0%-30%) (0%-26%) Qual UX UX U U UX U U U UX U U J U QC1205344915 1 18 N/A REC% 104 120 0 19.6 19.6 19.6 MB 613262Workorder: * RPD/D% Page 20 of 36 Page 102 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 12:39 03/16/23 10:18 03/16/23 12:39 QC ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NOM Sample RangeQual UX U U U U UX UX UX UX UX U U UX UX UX REC% 613262Workorder: RPD/D% Page 21 of 36 Page 103 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 12:39 03/16/23 10:18 03/16/23 12:39 03/16/23 10:18 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% 613262Workorder: RPD/D% Page 22 of 36 Page 104 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2398032Batch 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 03/16/23 10:18 03/16/23 12:39 03/16/23 10:18 03/16/23 12:39 QC ND ND ND ND ND ND ND ND ND ND 4.43 ND ND ND ND NOM Sample RangeQual U U U U U U U U U U X U U U UX REC% 613262Workorder: RPD/D% Page 23 of 36 Page 105 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/18/23 07:58 03/17/23 13:31 03/18/23 07:58 03/17/23 13:31 03/18/23 07:58 03/17/23 13:31 03/18/23 07:58 03/17/23 13:31 QC 19.9 17.4 19.6 19.8 22.8 20.7 19.9 21.2 18.1 16.4 18.8 17.9 22.8 23.3 17.5 NOM Sample Range (60%-158%) (59%-144%) (67%-144%) (58%-144%) (54%-128%) (52%-141%) (67%-154%) (73%-141%) (68%-135%) (56%-151%) (60%-153%) (60%-141%) (61%-148%) (23%-155%) (57%-139%) Qual X X X X QC1205348650 REC% 105 97 103 104 120 109 105 112 102 93 104 98 120 123 92 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 613262Workorder: RPD/D% Page 24 of 36 Page 106 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/17/23 13:31 03/18/23 07:58 QC 22.2 21.6 14.7 21.8 11.6 13.7 19.9 22.3 20.6 21.2 22.6 21.5 20.9 21.1 21.0 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% 117 114 77 115 61 72 105 118 109 112 119 113 110 111 111 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 613262Workorder: RPD/D% Page 25 of 36 Page 107 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/18/23 07:58 03/17/23 13:31 03/18/23 07:58 03/17/23 13:31 QC 22.3 21.5 18.1 20.8 16.4 18.0 17.2 21.0 15.6 18.4 19.6 22.3 21.9 20.4 17.8 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% 117 113 108 109 90 95 94 111 82 102 104 118 127 108 98 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 613262Workorder: RPD/D% Page 26 of 36 Page 108 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/17/23 13:31 03/18/23 07:58 03/17/23 13:31 03/18/23 07:58 03/18/23 08:13 03/17/23 13:40 03/18/23 08:13 QC 20.9 22.5 21.4 19.3 20.2 23.0 19.6 27.2 22.1 20.4 17.9 12.9 20.8 19.5 19.5 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 BX X X QC1205348651 4 11 0 REC% 110 119 113 102 106 129 103 143 117 107 94 68 108 107 101 19.0 19.0 19.0 19.0 19.0 17.8 19.0 19.0 19.0 19.0 19.0 19.0 19.3 18.1 19.3 LCSD 613262Workorder: RPD/D% Page 27 of 36 Page 109 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/18/23 08:13 03/17/23 13:40 03/18/23 08:13 03/17/23 13:40 03/18/23 08:13 03/17/23 13:40 03/18/23 08:13 QC 21.1 22.0 26.6 20.7 20.9 19.0 15.4 23.4 17.3 22.5 25.8 23.2 33.2 21.0 15.4 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 6 4 25 4 1 5 7 22 4 1 10 28 40 3 5 REC% 110 114 138 108 109 106 85 128 93 117 134 121 172 109 80 19.3 19.3 19.3 19.3 19.3 18.0 18.0 18.3 18.5 19.3 19.3 19.3 19.3 19.3 19.3 613262Workorder: * * * RPD/D% Page 28 of 36 Page 110 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/18/23 08:13 03/17/23 13:40 QC 20.2 13.6 16.8 20.3 21.4 22.5 21.7 21.8 21.2 20.7 21.0 21.0 21.4 22.2 21.7 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 7 16 20 2 4 9 2 3 1 1 1 0 4 3 18 REC% 105 71 87 106 111 117 113 113 110 108 109 109 111 115 127 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 19.3 17.0 613262Workorder: RPD/D% Page 29 of 36 Page 111 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/17/23 13:40 03/18/23 08:13 03/17/23 13:40 QC 20.7 18.7 20.3 18.8 22.0 16.9 19.0 21.6 22.3 17.6 22.8 19.1 21.1 25.8 21.6 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 0 13 12 9 4 8 3 9 0 22 11 7 1 14 1 REC% 108 101 106 101 114 88 104 112 116 100 119 103 109 134 112 19.3 18.6 19.3 18.6 19.3 19.3 18.3 19.3 19.3 17.6 19.3 18.5 19.3 19.3 19.3 613262Workorder: RPD/D% Page 30 of 36 Page 112 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/17/23 13:40 03/18/23 08:13 03/17/23 13:40 03/18/23 08:13 03/18/23 07:43 03/17/23 13:22 03/18/23 07:43 03/17/23 13:22 QC 20.8 20.9 17.4 23.2 26.5 21.6 19.6 22.3 15.7 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 BX X UX U U UX U U QC1205348649 8 3 28 17 3 2 4 22 20 REC% 108 108 96 120 137 112 102 116 82 19.3 19.3 18.1 19.3 19.3 19.3 19.3 19.3 19.3 MB 613262Workorder: RPD/D% Page 31 of 36 Page 113 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/17/23 13:22 03/18/23 07:43 03/17/23 13:22 03/18/23 07:43 03/17/23 13:22 03/18/23 07:43 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% 613262Workorder: RPD/D% Page 32 of 36 Page 114 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/18/23 07:43 03/17/23 13:22 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% 613262Workorder: RPD/D% Page 33 of 36 Page 115 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 03/17/23 13:22 03/18/23 07:43 03/17/23 13:22 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% 613262Workorder: RPD/D% Page 34 of 36 Page 116 of 129 SDG: 613262 QC Summary GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com Perfluorinated Compounds 2400011Batch 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 Anlst Date Time JMB3 RR3 JMB3 RR3 03/17/23 13:22 03/18/23 07:43 03/17/23 13:22 03/18/23 07:43 QC ND 5.36 ND ND ND ND NOM Sample RangeQual U X U U U UX The Qualifiers in this report are defined as follows: REC% 613262Workorder: U J P C B E A X N H ** < > h R ^ D N/A Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. Value is estimated Organics--The concentrations between the primary and confirmation columns/detectors is >40% different. For HPLC, the difference is >70%. Analyte has been confirmed by GC/MS analysis The target analyte was detected in the associated blank. Concentration of the target analyte exceeds the instrument calibration range The TIC is a suspected aldol-condensation product Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Organics--Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest internal standard response factor Analytical holding time was exceeded Analyte is a surrogate compound Result is less than value reported Result is greater than value reported Preparation or preservation holding time was exceeded Sample results are rejected RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. Results are reported from a diluted aliquot of the sample RPD or %Recovery limits do not apply. RPD/D% Notes: Page 35 of 36 Page 117 of 129 SDG: 613262 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% 613262Workorder: ND NJ JNX UJ Q N1 Y N J 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 118 of 129 SDG: 613262 Page 119 of 129 SDG: 613262 Page 120 of 129 SDG: 613262 Page 121 of 129 SDG: 613262 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 21 March 2023 Page 122 of 129 SDG: 613262 LCMSMS-Misc Technical Case Narrative NC Dept Environmental Quality SDG #: 613262 Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Analytical Procedure: GL-OA-E-076 REV# 13 Analytical Batches: 2397244 and 2397243 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 613262006 D101122-19 613262007 W101122-21C 613262008 D101122-21C 613262009 W101122-32 613262010 D101122-32 613262017 W100422-19 613262018 D100422-21WD 613262019 W100422-21C 613262020 D100422-21C 1205343056 Method Blank (MB) 1205343057 Laboratory Control Sample (LCS) 1205343058 Laboratory Control Sample Duplicate (LCSD) The samples in this SDG were analyzed on an "as received" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Calibration Information CCB Requirements The continuing calibration verifications (CCVs) were outside the acceptable criteria for PFECA_G_2 with a positive bias. There were no hits for PFECA_G_2 in any of the unknown samples. Thus, the data was not adversely impacted, and can be reported. 1205343056 (MB), 1205343057 (LCS), 1205343058 (LCSD), 613262006 (D101122-19), 613262007 (W101122-21C), 613262008 (D101122-21C), 613262009 (W101122-32) and 613262010 (D101122-32). Quality Control (QC) Information Method Blank (MB) Statement The blank analyzed with this SDG did not meet the established acceptance criteria for PPF Acid (PFPrA). The extraction cartridges used in the prep process contains PFF Acid (PFPrA) above GEL’s reporting limit or exhibits an interference/enhancement mimicking PPF Acid (PFPrA). Levels detected in the samples and QC should be assessed accordingly. Sample Analyte Value Page 123 of 129 SDG: 613262 1205343056 (MB)Perfluoropropanoic acid (PFPrA)4.32 * 10 > 3.94 The method blank contains an elevated 6:2 FTS signal. There is insufficient volume available for re-extraction. The results are reported as-is. Sample Analyte Value 1205343056 (MB)Fluorotelomer sulfonic acid 6:2 (6:2 FTS)9.21 * 10 > 8.72 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 LCSD does not meet criteria for 6:2 FTS. There is insufficient volume available for re-extraction. The results are reported as-is. Sample Analyte Value 1205343058 (LCSD)Fluorotelomer sulfonic acid 6:2 (6:2 FTS)235* (60%-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 1205343057 (LCS) and 1205343058 (LCSD)Perfluorohexanoic acid (PFHxA)RPD 29* (0%-27%) Internal Standard (ISTD) Acceptance The LCSD does not meet criteria for 6:2 FTS. There is insufficient volume available for re-extraction. The results are reported as-is. Sample Analyte Value 1205343058 (LCSD)1, 2-13C2 Fluorotelomer sulfonate 6:2 50* (60%-200%) 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 613262006 (D101122-19)Received 07-MAR-23, out of holding 01-NOV-22 613262007 (W101122-21C)Received 07-MAR-23, out of holding 01-NOV-22 613262008 (D101122-21C)Received 07-MAR-23, out of holding 01-NOV-22 613262009 (W101122-32)Received 07-MAR-23, out of holding 01-NOV-22 613262010 (D101122-32)Received 07-MAR-23, out of holding 01-NOV-22 Page 124 of 129 SDG: 613262 613262017 (W100422-19)Received 07-MAR-23, out of holding 25-OCT-22 613262018 (D100422-21WD)Received 07-MAR-23, out of holding 25-OCT-22 613262019 (W100422-21C)Received 07-MAR-23, out of holding 25-OCT-22 613262020 (D100422-21C)Received 07-MAR-23, out of holding 25-OCT-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. 613262009 (W101122-32). Analyte 613262 009 Fluorotelomer sulfonic acid 6:2 (6:2 FTS)5X Miscellaneous Information Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Analytical Procedure: GL-OA-E-076 REV# 13 Analytical Batches: 2398032 and 2398031 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 613262001 W101122-02 613262002 D101122-02 613262003 W101122-MB 613262004 D101122-MB 613262005 W101122-19 613262011 D101122-21WD 613262012 D101122-33 613262013 W101122-33 1205344915 Method Blank (MB) 1205344916 Laboratory Control Sample (LCS) 1205344917 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 Page 125 of 129 SDG: 613262 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 Method Blank (MB) Statement The blank analyzed with this SDG did not meet the established acceptance criteria for PPF Acid (PFPrA). The extraction cartridges used in the prep process contains PFF Acid (PFPrA) above GEL’s reporting limit or exhibits an interference/enhancement mimicking PPF Acid (PFPrA). Levels detected in the samples and QC should be assessed accordingly. Sample Analyte Value 1205344915 (MB)Perfluoropropanoic acid (PFPrA)4.43 * 10 > 3.17 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 1205344917 (LCSD)2-(N-ethylperfluoro-1-octanesulfonamido)-ethanol (N-EtFOSE)133* (54%-128%) N-methylperfluoro-1-octanesulfonamide (N-MeFOSA)156* (20%-154%) The LCS/LCSD Recoveries did not meet spike recovery acceptance limits for Byproduct 4, Byproduct 5, and R-Eve with a negative bias. The samples are consumed, data are reported as is. Sample Analyte Value 1205344916 (LCS)Nafion Byproduct 4 (PFESA BP4)0* (5%-158%) Nafion Byproduct 5 (PFESA BP5)0* (5%-149%) R-EVE 0* (5%-158%) 1205344917 (LCSD)Nafion Byproduct 4 (PFESA BP4)0* (5%-158%) Nafion Byproduct 5 (PFESA BP5)0* (5%-149%) R-EVE 0* (5%-158%) 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 Page 126 of 129 SDG: 613262 613262001 (W101122-02)Received 07-MAR-23, out of holding 01-NOV-22 613262002 (D101122-02)Received 07-MAR-23, out of holding 01-NOV-22 613262003 (W101122-MB)Received 07-MAR-23, out of holding 01-NOV-22 613262004 (D101122-MB)Received 07-MAR-23, out of holding 01-NOV-22 613262005 (W101122-19)Received 07-MAR-23, out of holding 01-NOV-22 613262011 (D101122-21WD)Received 07-MAR-23, out of holding 01-NOV-22 613262012 (D101122-33)Received 07-MAR-23, out of holding 01-NOV-22 613262013 (W101122-33)Received 07-MAR-23, out of holding 01-NOV-22 Miscellaneous Information Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS Analytical Method: EPA 537.1 Modified Analytical Procedure: GL-OA-E-076 REV# 13 Analytical Batches: 2400011 and 2400001 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 613262014 W112222-21 613262015 W112222-21C 613262016 D112222-21C 1205348649 Method Blank (MB) 1205348650 Laboratory Control Sample (LCS) 1205348651 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 Method Blank (MB) Statement The blank analyzed with this SDG did not meet the established acceptance criteria for PPF Acid (PFPrA). The Page 127 of 129 SDG: 613262 extraction cartridges used in the prep process contains PFF Acid (PFPrA) above GEL’s reporting limit or exhibits an interference/enhancement mimicking PPF Acid (PFPrA). Levels detected in the samples and QC should be assessed accordingly. Sample Analyte Value 1205348649 (MB)Perfluoropropanoic acid (PFPrA)5.36 * 10 > 4.71 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 1205348651 (LCSD)N-methylperfluoro-1-octanesulfonamide (N-MeFOSA)172* (20%-154%) 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 1205348650 (LCS) and 1205348651 (LCSD) N-ethylperfluoro-1-octanesulfonamidoacetic acid (N-EtFOSAA) RPD 28* (0%-27%) N-methylperfluoro-1-octanesulfonamide (N-MeFOSA)RPD 40* (0%-36%) 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 613262014 (W112222-21)Received 07-MAR-23, out of holding 13-DEC-22 613262015 (W112222-21C)Received 07-MAR-23, out of holding 13-DEC-22 613262016 (D112222-21C)Received 07-MAR-23, out of holding 13-DEC-22 Miscellaneous Information Additional Comments Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO 17025 criterion. These are the only standards available for these analytes. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the Page 128 of 129 SDG: 613262 requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 129 of 129 SDG: 613262