613237_032123_1539 GEL DAQ Week of Nov 1-8, 2022 Nearfield, MB, & Regional

March 21, 2023

Jim Bowyer
NCDENR
4403 Reedy Creek Road
North Carolina Department of Environment
Raleigh, North Carolina 27607

Re: NCDAQ
Work Order: 613237

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.

Chain of custody lists collection date of 01/08/2022, client confirmed collection date is incorrect and should be
listed as 11/08/2022, email attached. and 613237010(W110122-AS). Samples were received out of hold. All
sample containers arrived without any visible signs of tampering or breakage. There are no additional comments
concerning sample receipt.
Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards,
with any exceptions noted. The results reported relate only to the items tested and to the sample as received by
the laboratory. These results may not be reproduced except as full reports without approval by the laboratory.
Copies of GEL’s accreditations and certifications can be found on our website at www.gel.com.
Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs
on time every time. We trust that you will find everything in order and to your satisfaction. If you have any
questions, please do not hesitate to call me at [phone], ext. 1614.

Sincerely,

PM_SIGN_HERE
Delaney Stone
Project Manager

Purchase Order: NCDAQ
Enclosures
Page 1 of 130 SDG: 613237
Jordan Melton for
Reviewed by USER_SIGN_HERE
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis Report
NCDQ001 NC Dept Environmental Quality
Client SDG: 613237 GEL Work Order: 613237
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622108ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.19
4.39
4.39
4.31
4.12
4.17
4.21
4.39
4.39
4.39
4.39
4.39
1.95
2.19
2.13
2.19
2.19
2.08
2.19
4.39
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:
613237001
Water
08-NOV-22 12:45
07-MAR-23
D110122-32 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.724
1.45
1.45
1.45
1.45
1.45
1.45
1.45
1.45
1.45
1.45
0.724
0.724
0.877
0.724
0.855
0.724
0.724
0.724
1.45
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
Page 3 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995621837
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR3
2.00
2.19
2.11
2.19
4.39
2.19
2.19
2.19
2.06
2.19
2.19
2.19
2.19
2.19
0.548
0.548
0.548
0.548
0.548
0.548
0.548
0.548
0.548
0.548
0.548
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:
613237001
D110122-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.724
0.877
0.768
0.724
1.45
0.724
0.877
0.877
0.724
0.724
0.877
0.724
0.724
0.724
0.219
0.219
0.219
0.219
0.219
0.219
0.219
0.219
0.219
0.219
0.219
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
1.48
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
Page 4 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.548
0.548
0.548
0.548
0.548
0.548
0.548
4.39
4.39
0.548
0.548
0.439
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:
613237001
D110122-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.219
0.219
0.219
0.219
0.219
0.219
0.219
1.64
1.45
0.219
0.219
0.219
JXh
JXh
JXh
JXh
Uh
Uh
UXh
BXh
UXh
JXh
UXh
JXh
acid (PFEESA or PES)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic) acid
(PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoropropanoic acid (PFPrA)
R-EVE
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid (PFO5DA
or TAFN4)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.291
0.275
0.497
0.306
ND
ND
ND
5.75
ND
0.248
ND
0.310
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
0.0219
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23995591153DK2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237001
D110122-32 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 6 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622117ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.07
4.14
4.14
4.06
3.89
3.93
3.97
4.14
4.14
4.14
4.14
4.14
1.84
2.07
2.01
2.07
2.07
1.96
2.07
4.14
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:
613237002
Water
08-NOV-22 12:55
07-MAR-23
W110122-33 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.682
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
0.682
0.682
0.827
0.682
0.807
0.682
0.682
0.682
1.36
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
Page 7 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995621852
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR3
1.88
2.07
1.99
2.07
4.14
2.07
2.07
2.07
1.94
2.07
2.07
2.07
2.07
2.07
0.517
0.517
0.517
0.517
0.517
0.517
0.517
0.517
0.517
0.517
0.517
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:
613237002
W110122-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.682
0.827
0.724
0.682
1.36
0.682
0.827
0.827
0.682
0.682
0.827
0.682
0.682
0.682
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
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
8.39
ND
ND
ND
ND
ND
ND
ND
0.257
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
Page 8 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.517
0.517
0.517
0.517
0.517
0.517
0.517
4.14
4.14
0.517
0.517
0.414
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:
613237002
W110122-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.207
0.207
0.207
0.207
0.207
0.207
0.207
1.55
1.36
0.207
0.207
0.207
UXh
UXh
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
ND
0.304
ND
ND
ND
ND
5.38
ND
ND
ND
ND
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23995591153DK2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237002
W110122-33 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 10 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622126ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.06
4.13
4.13
4.05
3.88
3.92
3.96
4.13
4.13
4.13
4.13
4.13
1.84
2.06
2.00
2.06
2.06
1.96
2.06
4.13
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:
613237003
Water
08-NOV-22 12:55
07-MAR-23
D110122-33 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.681
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
0.681
0.681
0.826
0.681
0.805
0.681
0.681
0.681
1.36
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0206
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 11 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995621907
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR3
1.88
2.06
1.98
2.06
4.13
2.06
2.06
2.06
1.94
2.06
2.06
2.06
2.06
2.06
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
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:
613237003
D110122-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.681
0.826
0.722
0.681
1.36
0.681
0.826
0.826
0.681
0.681
0.826
0.681
0.681
0.681
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
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
2.70
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
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
Page 12 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.516
0.516
0.516
0.516
0.516
0.516
0.516
4.13
4.13
0.516
0.516
0.413
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:
613237003
D110122-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.206
0.206
0.206
0.206
0.206
0.206
0.206
1.55
1.36
0.206
0.206
0.206
JXh
JXh
JXh
JXh
Uh
Uh
UXh
BXh
UXh
JXh
UXh
JXh
acid (PFEESA or PES)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic) acid
(PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoropropanoic acid (PFPrA)
R-EVE
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid (PFO5DA
or TAFN4)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.288
0.371
0.442
0.295
ND
ND
ND
5.48
ND
0.271
ND
0.208
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 03/16/23 23995591153DK2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237003
D110122-33 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 14 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622135ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.01
4.03
4.03
3.95
3.79
3.83
3.87
4.03
4.03
4.03
4.03
4.03
1.79
2.01
1.95
2.01
2.01
1.91
2.01
4.03
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:
613237004
Water
08-NOV-22 10:00
07-MAR-23
W110122-MB 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
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0201
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 15 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995621937
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR3
1.83
2.01
1.93
2.01
4.03
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:
613237004
W110122-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.664
0.805
0.705
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
5.19
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 16 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
4.03
4.03
0.503
0.503
0.403
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:
613237004
W110122-MB 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
5.22
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 03/16/23 23995591153DK2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237004
W110122-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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622144ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB31.90
3.80
3.80
3.73
3.57
3.61
3.65
3.80
3.80
3.80
3.80
3.80
1.69
1.90
1.84
1.90
1.90
1.80
1.90
3.80
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237005
Water
08-NOV-22 10:00
07-MAR-23
D110122-MB NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.627
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
0.627
0.627
0.760
0.627
0.741
0.627
0.627
0.627
1.25
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
Page 19 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995621952
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR3
1.73
1.90
1.82
1.90
3.80
1.90
1.90
1.90
1.79
1.90
1.90
1.90
1.90
1.90
0.475
0.475
0.475
0.475
0.475
0.475
0.475
0.475
0.475
0.475
0.475
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237005
D110122-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.627
0.760
0.665
0.627
1.25
0.627
0.760
0.760
0.627
0.627
0.760
0.627
0.627
0.627
0.190
0.190
0.190
0.190
0.190
0.190
0.190
0.190
0.190
0.190
0.190
2
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
UXh
Uh
UXh
UXh
UXh
UXh
UXh
UXh
UXh
Uh
Uh
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
Page 20 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.475
0.475
0.475
0.475
0.475
0.475
0.475
3.80
3.80
0.475
0.475
0.380
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237005
D110122-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.190
0.190
0.190
0.190
0.190
0.190
0.190
1.42
1.25
0.190
0.190
0.190
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
4.32
ND
ND
ND
ND
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
0.0190
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23995591153DK2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237005
D110122-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 22 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622007ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR30.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
4.02
4.02
0.503
0.503
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237006
Water
08-NOV-22 10:00
07-MAR-23
W110122-PG NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
1.51
1.33
0.201
0.201
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
13.7
ND
ND
ND
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
Page 23 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622153
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
0.402
2.01
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
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:
613237006
W110122-PG NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.201
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
0.804
0.664
0.784
0.664
2
UXh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
(PEPA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0201
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 24 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
1.91
2.01
4.02
1.83
2.01
1.93
2.01
4.02
2.01
2.01
2.01
1.89
2.01
2.01
2.01
2.01
2.01
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237006
W110122-PG NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.664
0.664
1.33
0.664
0.804
0.704
0.664
1.33
0.664
0.804
0.804
0.664
0.664
0.804
0.664
0.664
0.664
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
9.45
ND
ND
ND
ND
ND
ND
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23995591153DK2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237006
W110122-PG NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 26 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622022ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR30.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
4.02
4.02
0.503
0.503
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237007
Water
08-NOV-22 09:45
07-MAR-23
W110122-RK NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
1.51
1.33
0.201
0.201
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
4.38
ND
ND
ND
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
Page 27 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622202
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
0.402
2.01
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
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:
613237007
W110122-RK NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.201
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
0.784
0.664
2
UXh
Uh
Uh
Uh
Uh
Uh
Uh
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"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
3.33
ND
ND
ND
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
Page 28 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
1.91
2.01
4.02
1.83
2.01
1.93
2.01
4.02
2.01
2.01
2.01
1.89
2.01
2.01
2.01
2.01
2.01
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237007
W110122-RK NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.664
0.664
1.33
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
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
2.17
ND
ND
ND
ND
ND
ND
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23995591153DK2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237007
W110122-RK NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 30 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622220ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB31.99
3.98
3.98
3.90
3.74
3.78
3.82
3.98
3.98
3.98
3.98
3.98
1.77
1.99
1.93
1.99
1.99
1.89
1.99
3.98
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237008
Water
08-NOV-22 09:45
07-MAR-23
FB110122-RK 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
Jh
h
Uh
Uh
Uh
Uh
Jh
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
0.687
8.19
ND
ND
ND
ND
0.997
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 31 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23995622037
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR3
1.81
1.99
1.91
1.99
3.98
1.99
1.99
1.99
1.87
1.99
1.99
1.99
1.99
1.99
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237008
FB110122-RK NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.656
0.795
0.696
0.656
1.31
0.656
0.795
0.795
0.656
0.656
0.795
0.656
0.656
0.656
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
2
Uh
h
Uh
Uh
Uh
Uh
Jh
h
Uh
h
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
2.55
ND
ND
ND
ND
1.34
17.1
ND
4.05
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
Page 32 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
3.98
3.98
0.497
0.497
0.398
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237008
FB110122-RK 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
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
22.3
ND
ND
ND
ND
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23995591153DK2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237008
FB110122-RK NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 34 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996922339ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR30.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
0.529
4.23
4.23
0.529
0.529
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:
613237009
Water
08-NOV-22 10:30
07-MAR-23
W110122-MH NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
0.211
1.59
1.40
0.211
0.211
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
5.56
ND
ND
ND
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
Page 35 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921659
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
0.423
2.11
4.23
4.23
4.15
3.98
4.02
4.06
4.23
4.23
4.23
4.23
4.23
1.88
2.11
2.05
2.11
2.11
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237009
W110122-MH NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.211
0.698
1.40
1.40
1.40
1.40
1.40
1.40
1.40
1.40
1.40
1.40
0.698
0.698
0.846
0.698
0.825
0.698
2
UXh
Uh
Uh
Uh
Uh
Uh
Uh
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"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
2.79
ND
ND
ND
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
Page 36 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
2.01
2.11
4.23
1.92
2.11
2.03
2.11
4.23
2.11
2.11
2.11
1.99
2.11
2.11
2.11
2.11
2.11
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237009
W110122-MH NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.698
0.698
1.40
0.698
0.846
0.740
0.698
1.40
0.698
0.846
0.846
0.698
0.698
0.846
0.698
0.698
0.698
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
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
11.6
ND
ND
ND
ND
ND
ND
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
0.0211
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23996911150SR2
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 37 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237009
W110122-MH NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 38 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996922354ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/17/23RR30.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
0.497
3.98
3.98
0.497
0.497
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237010
Water
08-NOV-22 06:30
07-MAR-23
W110122-AS NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
1.49
1.31
0.199
0.199
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
5.35
ND
ND
ND
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
Page 39 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921707
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
0.398
1.99
3.98
3.98
3.91
3.74
3.78
3.82
3.98
3.98
3.98
3.98
3.98
1.77
1.99
1.93
1.99
1.99
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237010
W110122-AS NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.199
0.656
1.31
1.31
1.31
1.31
1.31
1.31
1.31
1.31
1.31
1.31
0.656
0.656
0.795
0.656
0.776
0.656
2
UXh
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"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.33
ND
ND
ND
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
Page 40 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
1.89
1.99
3.98
1.81
1.99
1.91
1.99
3.98
1.99
1.99
1.99
1.87
1.99
1.99
1.99
1.99
1.99
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237010
W110122-AS NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.656
0.656
1.31
0.656
0.795
0.696
0.656
1.31
0.656
0.795
0.795
0.656
0.656
0.795
0.656
0.656
0.656
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
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
3.01
ND
ND
ND
ND
ND
ND
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237010
W110122-AS NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 42 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921716ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB31.96
3.91
3.91
3.84
3.68
3.72
3.76
3.91
3.91
3.91
3.91
3.91
1.74
1.96
1.90
1.96
1.96
1.86
1.96
3.91
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237011
Water
08-NOV-22 12:20
07-MAR-23
W110122-02 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.646
1.29
1.29
1.29
1.29
1.29
1.29
1.29
1.29
1.29
1.29
0.646
0.646
0.782
0.646
0.763
0.646
0.646
0.646
1.29
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Jh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.55
ND
ND
ND
ND
ND
ND
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
Page 43 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920009
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
1.78
1.96
1.88
1.96
3.91
1.96
1.96
1.96
1.84
1.96
1.96
1.96
1.96
1.96
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237011
W110122-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.646
0.782
0.685
0.646
1.29
0.646
0.782
0.782
0.646
0.646
0.782
0.646
0.646
0.646
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
2
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
UXh
Jh
UXh
UXh
UXh
UXh
UXh
UXh
UXh
Uh
Uh
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.476
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
Page 44 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.489
0.489
0.489
0.489
0.489
0.489
0.489
3.91
3.91
0.489
0.489
0.391
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237011
W110122-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.196
0.196
0.196
0.196
0.196
0.196
0.196
1.47
1.29
0.196
0.196
0.196
UXh
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"
ND
0.310
2.43
1.29
ND
ND
ND
8.29
ND
ND
0.464
2.48
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 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237011
W110122-02 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 46 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921725ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.02
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
1.92
2.02
4.05
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237012
Water
08-NOV-22 12:20
07-MAR-23
D110122-02 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
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
0.668
0.668
1.34
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
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 47 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920024
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
4.05
2.02
2.02
2.02
1.90
2.02
2.02
2.02
2.02
2.02
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
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
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237012
D110122-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
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
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
Jh
UXh
UXh
UXh
UXh
UXh
UXh
UXh
Uh
Uh
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.424
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 48 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.506
0.506
0.506
0.506
0.506
0.506
0.506
4.05
4.05
0.506
0.506
0.405
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237012
D110122-02 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
1.52
1.34
0.202
0.202
0.202
UXh
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"
ND
0.270
2.18
0.633
ND
ND
ND
6.18
ND
ND
0.252
1.90
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 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237012
D110122-02 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 50 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920039ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/18/23RR30.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
0.469
3.75
3.75
0.469
0.469
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:
613237013
Water
08-NOV-22 12:35
07-MAR-23
W110122-19 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
0.188
1.41
1.24
0.188
0.188
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
4.22
ND
ND
ND
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
Page 51 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921734
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
0.375
1.88
3.75
3.75
3.69
3.53
3.57
3.60
3.75
3.75
3.75
3.75
3.75
1.67
1.88
1.82
1.88
1.88
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:
613237013
W110122-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.188
0.619
1.24
1.24
1.24
1.24
1.24
1.24
1.24
1.24
1.24
1.24
0.619
0.619
0.751
0.619
0.732
0.619
2
UXh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
(PEPA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
Page 52 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
1.78
1.88
3.75
1.71
1.88
1.80
1.88
3.75
1.88
1.88
1.88
1.76
1.88
1.88
1.88
1.88
1.88
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:
613237013
W110122-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.619
0.619
1.24
0.619
0.751
0.657
0.619
1.24
0.619
0.751
0.751
0.619
0.619
0.751
0.619
0.619
0.619
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
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
0.0188
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237013
W110122-19 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 54 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921752ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.02
4.05
4.05
3.98
3.85
3.89
4.05
4.05
4.05
4.05
4.05
1.80
2.02
1.96
2.02
2.02
1.92
2.02
4.05
1.84
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237014
Water
08-NOV-22 12:35
07-MAR-23
D110122-19 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.668
1.34
1.34
1.34
1.34
1.34
1.34
1.34
1.34
1.34
0.668
0.668
0.810
0.668
0.789
0.668
0.668
0.668
1.34
0.668
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 55 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920054
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
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
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
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
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237014
D110122-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.810
0.708
0.668
1.34
0.668
0.810
0.810
0.668
0.668
0.810
0.668
0.668
0.668
0.202
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
UXh
h
UXh
UXh
UXh
UXh
UXh
UXh
UXh
Uh
Uh
Xh
(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
ND
ND
ND
ND
ND
ND
ND
ND
1.76
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.565
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 56 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920805
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
0.506
0.506
0.506
0.506
0.506
0.506
4.05
4.05
0.506
0.506
0.405
19.0
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:
613237014
D110122-19 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
1.52
1.34
0.202
0.202
0.202
6.68 3
Xh
Xh
JXh
Uh
Uh
UXh
JBXh
JXh
JXh
UXh
UXh
Uh
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 4:2 (4:2
FTS)
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.658
0.629
0.321
ND
ND
ND
3.86
2.35
0.374
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
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23996911150SR2
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 57 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237014
D110122-19 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 58 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921801ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB31.91
3.82
3.82
3.75
3.59
3.63
3.67
3.82
3.82
3.82
3.82
3.82
1.70
1.91
1.85
1.91
1.91
1.82
1.91
3.82
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:
613237015
Water
08-NOV-22 12:35
07-MAR-23
FB110122-19 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.631
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
0.631
0.631
0.764
0.631
0.745
0.631
0.631
0.631
1.26
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
Page 59 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920110
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
1.74
1.91
1.83
1.91
3.82
1.91
1.91
1.91
1.80
1.91
1.91
1.91
1.91
1.91
0.478
0.478
0.478
0.478
0.478
0.478
0.478
0.478
0.478
0.478
0.478
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:
613237015
FB110122-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.631
0.764
0.669
0.631
1.26
0.631
0.764
0.764
0.631
0.631
0.764
0.631
0.631
0.631
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
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
7.67
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
Page 60 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.478
0.478
0.478
0.478
0.478
0.478
0.478
3.82
3.82
0.478
0.478
0.382
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:
613237015
FB110122-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.191
0.191
0.191
0.191
0.191
0.191
0.191
1.43
1.26
0.191
0.191
0.191
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
4.57
ND
ND
ND
ND
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237015
FB110122-19 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 62 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921810ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.02
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:
613237016
Water
08-NOV-22 13:25
07-MAR-23
W110122-21 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
0.809
0.667
0.788
0.667
0.667
0.667
1.33
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
0.995
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 63 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920140
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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:
613237016
W110122-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.667
0.809
0.708
0.667
1.33
0.667
0.809
0.809
0.667
0.667
0.809
0.667
0.667
0.667
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
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
5.40
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 64 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237016
W110122-21 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
1.52
1.33
0.202
0.202
0.202
UXh
UXh
UXh
UXh
Jh
Jh
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
0.217
0.408
ND
5.74
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
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237016
W110122-21 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 66 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921819ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.06
4.13
4.13
4.05
3.88
3.92
3.96
4.13
4.13
4.13
4.13
4.13
1.84
2.06
2.00
2.06
2.06
1.96
2.06
4.13
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:
613237017
Water
08-NOV-22 13:25
07-MAR-23
D110122-21 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.681
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
1.36
0.681
0.681
0.826
0.681
0.805
0.681
0.681
0.681
1.36
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0206
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 67 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920155
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
1.88
2.06
1.98
2.06
4.13
2.06
2.06
2.06
1.94
2.06
2.06
2.06
2.06
2.06
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
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:
613237017
D110122-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.681
0.826
0.722
0.681
1.36
0.681
0.826
0.826
0.681
0.681
0.826
0.681
0.681
0.681
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
2
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
UXh
Uh
UXh
UXh
UXh
UXh
UXh
UXh
UXh
Uh
Uh
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0206
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
0.0206
0.0206
0.0206
Page 68 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.516
0.516
0.516
0.516
0.516
0.516
0.516
4.13
4.13
0.516
0.516
0.413
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:
613237017
D110122-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.206
0.206
0.206
0.206
0.206
0.206
0.206
1.55
1.36
0.206
0.206
0.206
UXh
UXh
JXh
UXh
Uh
Uh
UXh
BXh
UXh
UXh
UXh
JXh
acid (PFEESA or PES)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic) acid
(PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoropropanoic acid (PFPrA)
R-EVE
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid (PFO5DA
or TAFN4)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
0.307
ND
ND
ND
ND
5.80
ND
ND
ND
0.379
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 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237017
D110122-21 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 70 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
24000110828ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/18/23RR30.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
0.530
4.24
4.24
0.530
0.530
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237018
Water
08-NOV-22 13:25
07-MAR-23
W110122-21C NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
0.212
1.59
1.40
0.212
0.212
1UXh
Uh
UXh
UXh
UXh
UXh
UXh
UXh
UXh
Uh
Uh
UXh
UXh
Xh
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
0.543
ND
ND
ND
ND
7.83
ND
ND
ND
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
Page 71 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
24000111349
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
0.424
2.12
4.24
4.24
4.17
3.99
4.03
4.07
4.24
4.24
4.24
4.24
4.24
1.89
2.12
2.06
2.12
2.12
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237018
W110122-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.212
0.700
1.40
1.40
1.40
1.40
1.40
1.40
1.40
1.40
1.40
1.40
0.700
0.700
0.849
0.700
0.827
0.700
2
UXh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
(PEPA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
Page 72 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
2.02
2.12
4.24
1.93
2.12
2.04
2.12
4.24
2.12
2.12
2.12
1.99
2.12
2.12
2.12
2.12
2.12
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237018
W110122-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.700
0.700
1.40
0.700
0.849
0.742
0.700
1.40
0.700
0.849
0.849
0.700
0.700
0.849
0.700
0.700
0.700
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
0.0212
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 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 73 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237018
W110122-21C 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 74 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920210ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/18/23RR30.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
0.533
4.26
4.26
0.533
0.533
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:
613237019
Water
08-NOV-22 13:25
07-MAR-23
D110122-21C NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
0.213
1.60
1.41
0.213
0.213
1UXh
Uh
UXh
UXh
UXh
UXh
UXh
UXh
UXh
Uh
Uh
JXh
JXh
JXh
UXh
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
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.323
0.256
0.400
ND
ND
ND
ND
5.27
ND
0.340
ND
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
Page 75 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921828
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
0.426
2.13
4.26
4.26
4.19
4.01
4.05
4.09
4.26
4.26
4.26
4.26
4.26
1.90
2.13
2.07
2.13
2.13
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:
613237019
D110122-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.213
0.704
1.41
1.41
1.41
1.41
1.41
1.41
1.41
1.41
1.41
1.41
0.704
0.704
0.853
0.704
0.831
0.704
2
Xh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
(PEPA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.430
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
Page 76 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
2.03
2.13
4.26
1.94
2.13
2.05
2.13
4.26
2.13
2.13
2.13
2.00
2.13
2.13
2.13
2.13
2.13
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:
613237019
D110122-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.704
0.704
1.41
0.704
0.853
0.746
0.704
1.41
0.704
0.853
0.853
0.704
0.704
0.853
0.704
0.704
0.704
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
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
0.0213
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237019
D110122-21C 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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996921837ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
03/16/23JMB32.10
4.21
4.21
4.13
3.95
4.00
4.04
4.21
4.21
4.21
4.21
4.21
1.87
2.10
2.04
2.10
2.10
2.00
2.10
4.21
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:
613237020
Water
08-NOV-22 12:45
07-MAR-23
W110122-32 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.694
1.39
1.39
1.39
1.39
1.39
1.39
1.39
1.39
1.39
1.39
0.694
0.694
0.841
0.694
0.820
0.694
0.694
0.694
1.39
1Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0210
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 79 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: March 21, 2023
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
23996920225
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
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
1.91
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
0.526
0.526
0.526
0.526
0.526
0.526
0.526
0.526
0.526
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
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
613237020
W110122-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.694
0.841
0.736
0.694
1.39
0.694
0.841
0.841
0.694
0.694
0.841
0.694
0.694
0.694
0.210
0.210
0.210
0.210
0.210
0.210
0.210
0.210
0.210
0.210
0.210
2
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
Uh
UXh
Jh
UXh
UXh
UXh
UXh
UXh
UXh
UXh
Uh
Uh
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.263
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 80 of 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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
0.526
0.526
0.526
0.526
0.526
0.526
0.526
4.21
4.21
0.526
0.526
0.421
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:
613237020
W110122-32 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
1.58
1.39
0.210
0.210
0.210
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
5.46
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 03/16/23 23996911150SR2
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 130 SDG: 613237
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - 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:
613237020
W110122-32 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 82 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
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
JMB3
RR3
JMB3
RR3
JMB3
RR3
03/17/23 18:06
03/16/23 20:50
03/17/23 18:06
03/16/23 20:50
03/17/23 18:06
03/16/23 20:50
03/17/23 18:06
QC
19.4
16.3
20.2
21.3
21.6
25.0
22.3
21.2
17.5
15.8
19.5
21.0
23.3
NOM Sample Range
(60%-158%)
(59%-144%)
(67%-144%)
(58%-144%)
(54%-128%)
(52%-141%)
(67%-154%)
(73%-141%)
(68%-135%)
(56%-151%)
(60%-153%)
(60%-141%)
(61%-148%)
Qual
X
X
X
X
QC1205347661
REC%
102
91
106
112
113
131
117
111
99
89
107
115
122
19.1
18.0
19.1
19.1
19.1
19.1
19.1
19.1
17.8
17.9
18.1
18.3
19.1
LCS
613237Workorder:
North Carolina Department of Environment
RPD/D%
Page 1 of 36
Page 83 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
RR3
03/16/23 20:50
03/17/23 18:06
QC
24.4
20.3
26.7
24.2
13.6
22.1
ND
ND
20.1
21.4
20.4
22.1
22.1
21.8
20.0
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
UX
UX
X
X
X
X
X
REC%
128
107
140
127
71
116
0
0
105
112
107
116
116
114
105
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
613237Workorder:
*
*
RPD/D%
Page 2 of 36
Page 84 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
RR3
JMB3
RR3
JMB3
03/17/23 18:06
03/16/23 20:50
03/17/23 18:06
03/16/23 20:50
QC
21.3
20.6
21.0
21.7
19.2
22.1
16.9
19.5
17.4
21.7
15.8
18.4
20.8
21.9
16.9
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%
111
108
110
114
114
116
92
102
94
114
83
101
109
115
97
19.1
19.1
19.1
19.1
16.9
19.1
18.4
19.1
18.5
19.1
19.1
18.1
19.1
19.1
17.4
613237Workorder:
RPD/D%
Page 3 of 36
Page 85 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
RR3
JMB3
RR3
03/16/23 20:50
03/17/23 18:06
03/16/23 20:50
03/17/23 18:06
03/17/23 18:21
QC
22.1
17.4
20.1
25.0
20.1
17.6
20.5
17.7
20.9
24.3
21.5
20.2
22.0
ND
14.5
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
UX
X
QC1205347662
29
REC%
116
95
105
131
105
92
107
99
110
127
112
106
115
0
75
19.1
18.3
19.1
19.1
19.1
19.1
19.1
17.9
19.1
19.1
19.1
19.1
19.1
19.1
19.2
LCSD
613237Workorder:
*
RPD/D%
Page 4 of 36
Page 86 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
RR3
JMB3
RR3
JMB3
RR3
JMB3
03/16/23 20:59
03/17/23 18:21
03/16/23 20:59
03/17/23 18:21
03/16/23 20:59
03/17/23 18:21
03/16/23 20:59
QC
17.9
18.9
19.8
20.3
24.3
21.0
19.5
20.5
15.2
17.0
22.0
23.0
23.3
19.7
23.8
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
X
9
7
7
6
3
6
8
16
4
14
4
1
5
3
11
REC%
99
99
103
106
127
110
102
115
85
93
119
120
121
103
124
18.1
19.2
19.2
19.2
19.2
19.2
19.2
17.9
17.9
18.2
18.4
19.2
19.2
19.2
19.2
613237Workorder:
RPD/D%
Page 5 of 36
Page 87 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
RR3
03/16/23 20:59
03/17/23 18:21
QC
24.0
13.3
19.6
0.241
0.447
20.3
19.9
19.4
20.4
20.1
20.3
18.4
18.3
19.1
18.2
NOM Sample Range
(0%-27%)
(0%-28%)
(0%-23%)
(0%-45%)
(0%-40%)
(0%-26%)
(0%-27%)
(0%-35%)
(0%-40%)
(0%-39%)
(0%-36%)
(0%-27%)
(0%-29%)
(0%-30%)
(0%-31%)
Qual
X
X
JX
JX
X
X
X
X
X
X
X
1
2
12
200
200
1
7
5
8
10
7
8
15
7
14
REC%
125
69
102
1
2
106
104
101
107
105
106
96
96
100
95
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
19.2
613237Workorder:
*
*
*
*
RPD/D%
Page 6 of 36
Page 88 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
RR3
JMB3
RR3
JMB3
03/17/23 18:21
03/16/23 20:59
03/17/23 18:21
03/16/23 20:59
QC
18.8
17.2
20.0
19.2
18.8
20.1
20.1
16.2
20.1
19.8
21.2
18.5
19.9
19.4
20.4
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
15
11
10
13
4
15
7
3
9
5
3
9
10
11
2
REC%
98
102
104
104
98
109
105
85
110
103
111
106
104
106
106
19.2
17.0
19.2
18.5
19.2
18.5
19.2
19.2
18.2
19.2
19.2
17.5
19.2
18.4
19.2
613237Workorder:
RPD/D%
Page 7 of 36
Page 89 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
RR3
JMB3
RR3
JMB3
RR3
03/16/23 20:59
03/17/23 18:21
03/16/23 20:59
03/17/23 18:21
03/17/23 17:51
03/16/23 20:41
03/17/23 17:51
QC
24.3
22.1
21.4
19.4
18.4
20.5
21.6
20.6
19.9
20.4
ND
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
UX
UX
U
U
UX
QC1205347660
3
10
19
6
4
2
12
4
1
7
N/A
REC%
127
115
112
101
102
107
113
108
104
106
3
19.2
19.2
19.2
19.2
18.0
19.2
19.2
19.2
19.2
19.2
19.2
MB
613237Workorder:
*
RPD/D%
Page 8 of 36
Page 90 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
RR3
JMB3
RR3
JMB3
RR3
03/16/23 20:41
03/17/23 17:51
03/16/23 20:41
03/17/23 17:51
03/16/23 20:41
03/17/23 17:51
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
U
U
U
UX
U
U
U
U
UX
U
U
U
U
UX
UX
REC%
613237Workorder:
RPD/D%
Page 9 of 36
Page 91 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
RR3
JMB3
03/17/23 17:51
03/16/23 20:41
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%
613237Workorder:
RPD/D%
Page 10 of 36
Page 92 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562Batch
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
RR3
JMB3
03/16/23 20:41
03/17/23 17:51
03/16/23 20:41
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%
613237Workorder:
RPD/D%
Page 11 of 36
Page 93 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399562
2399692
Batch
Batch
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
RR3
JMB3
RR3
RR3
JMB3
RR3
JMB3
03/16/23 20:41
03/17/23 17:51
03/16/23 20:41
03/17/23 17:51
03/17/23 23:09
03/16/23 16:41
03/17/23 23:09
03/16/23 16:41
QC
ND
ND
ND
4.65
ND
ND
ND
ND
18.1
17.6
19.0
19.9
22.0
22.6
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
QC1205347919
REC%
93
96
97
102
112
115
19.6
18.4
19.6
19.6
19.6
19.6
LCS
613237Workorder:
RPD/D%
Page 12 of 36
Page 94 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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 16:41
03/17/23 23:09
03/16/23 16:41
03/17/23 23:09
03/16/23 16:41
03/17/23 23:09
QC
20.9
20.8
18.9
16.0
20.3
22.2
22.6
24.1
24.9
22.1
25.3
14.8
19.2
0.902
1.16
NOM Sample Range
(67%-154%)
(73%-141%)
(68%-135%)
(56%-151%)
(60%-153%)
(60%-141%)
(61%-148%)
(23%-155%)
(57%-139%)
(20%-154%)
(59%-145%)
(35%-138%)
(63%-143%)
(5%-158%)
(5%-149%)
Qual
X
X
X
X
X
X
REC%
107
106
104
87
110
118
116
123
127
113
129
76
98
5
6
19.6
19.6
18.2
18.3
18.6
18.8
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
613237Workorder:
RPD/D%
Page 13 of 36
Page 95 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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
03/17/23 23:09
03/16/23 16:41
QC
18.9
19.2
18.5
21.7
21.4
21.7
19.2
19.4
19.0
19.2
17.7
19.5
21.5
18.1
20.9
NOM Sample Range
(59%-145%)
(48%-149%)
(52%-148%)
(58%-147%)
(60%-151%)
(62%-148%)
(60%-144%)
(58%-142%)
(50%-150%)
(52%-144%)
(60%-149%)
(70%-144%)
(73%-151%)
(58%-134%)
(65%-145%)
Qual
X
X
X
X
X
X
X
REC%
97
98
95
111
109
111
98
99
97
98
91
113
110
96
107
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
17.3
19.6
18.9
19.6
613237Workorder:
RPD/D%
Page 14 of 36
Page 96 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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 16:41
03/17/23 23:09
03/16/23 16:41
QC
18.9
21.4
16.7
18.4
23.4
22.6
18.0
20.5
19.0
22.5
24.0
22.7
19.8
21.8
17.6
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%
100
109
86
99
120
115
101
105
101
115
123
116
101
112
96
18.9
19.6
19.6
18.6
19.6
19.6
17.8
19.6
18.8
19.6
19.6
19.6
19.6
19.6
18.4
613237Workorder:
RPD/D%
Page 15 of 36
Page 97 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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 16:41
03/17/23 23:09
03/16/23 16:41
03/17/23 23:09
03/17/23 23:24
03/16/23 16:50
03/17/23 23:24
03/16/23 16:50
03/17/23 23:24
03/16/23 16:50
QC
20.6
21.2
22.4
21.2
20.0
1.57
16.8
15.8
17.6
18.8
18.8
26.5
18.5
19.4
17.7
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
JX
X
X
X
QC1205347920
7
11
8
6
16
16
12
7
7
REC%
105
108
114
108
102
8
86
86
91
97
97
136
95
100
98
19.6
19.6
19.6
19.6
19.6
19.6
19.4
18.3
19.4
19.4
19.4
19.4
19.4
19.4
18.1
LCSD
613237Workorder:
RPD/D%
Page 16 of 36
Page 98 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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 16:50
03/17/23 23:24
03/16/23 16:50
03/17/23 23:24
QC
13.1
18.0
19.1
20.3
21.3
19.2
22.1
21.1
14.0
19.3
0.584
0.647
17.5
18.5
18.6
NOM Sample Range
(0%-32%)
(0%-32%)
(0%-36%)
(0%-24%)
(0%-27%)
(0%-27%)
(0%-36%)
(0%-27%)
(0%-28%)
(0%-23%)
(0%-45%)
(0%-40%)
(0%-26%)
(0%-27%)
(0%-35%)
Qual
X
X
X
X
X
X
20
12
15
11
12
26
0
18
6
0
43
56
8
4
0
REC%
72
98
103
104
110
99
113
109
72
99
3
3
90
95
96
18.2
18.5
18.7
19.4
19.4
19.4
19.4
19.4
19.4
19.4
19.4
19.4
19.4
19.4
19.4
613237Workorder:
*
**
RPD/D%
Page 17 of 36
Page 99 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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
03/17/23 23:24
03/16/23 16:50
03/17/23 23:24
QC
19.2
20.1
20.4
18.9
18.4
18.4
18.9
19.1
17.0
20.2
17.3
18.5
17.3
21.3
16.2
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
12
6
6
1
5
3
2
8
14
6
4
12
9
0
3
REC%
99
104
105
97
95
95
97
99
99
104
92
95
92
109
83
19.4
19.4
19.4
19.4
19.4
19.4
19.4
19.4
17.2
19.4
18.8
19.4
18.8
19.4
19.4
613237Workorder:
RPD/D%
Page 18 of 36
Page 100 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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 16:50
03/17/23 23:24
03/16/23 16:50
QC
18.2
20.6
20.0
18.1
19.4
17.5
20.2
19.3
20.8
19.0
18.4
17.7
19.6
21.7
18.9
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
1
12
12
1
5
8
11
22
9
4
17
0
5
3
17
REC%
98
106
103
102
100
94
104
99
107
98
95
97
101
112
97
18.5
19.4
19.4
17.7
19.4
18.7
19.4
19.4
19.4
19.4
19.4
18.3
19.4
19.4
19.4
613237Workorder:
RPD/D%
Page 19 of 36
Page 101 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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 16:50
03/17/23 23:24
03/17/23 22:53
03/16/23 16:32
03/17/23 22:53
03/16/23 16:32
03/17/23 22:53
03/16/23 16:32
QC
18.8
19.0
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample Range
(0%-31%)
(0%-30%)
(0%-26%)
Qual
UX
UX
U
U
UX
U
U
U
UX
U
U
U
U
QC1205347918
12
5
200
REC%
97
98
4
19.4
19.4
19.4
MB
613237Workorder:
**
RPD/D%
Page 20 of 36
Page 102 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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
03/17/23 22:53
03/16/23 16:32
03/17/23 22:53
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%
613237Workorder:
RPD/D%
Page 21 of 36
Page 103 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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
03/17/23 22:53
03/16/23 16:32
03/17/23 22:53
03/16/23 16:32
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%
613237Workorder:
RPD/D%
Page 22 of 36
Page 104 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2399692Batch
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 16:32
03/17/23 22:53
03/16/23 16:32
03/17/23 22:53
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
5.06
ND
ND
ND
ND
NOM Sample RangeQual
U
U
U
U
U
U
U
U
U
U
X
U
U
U
UX
REC%
613237Workorder:
RPD/D%
Page 23 of 36
Page 105 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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
613237Workorder:
RPD/D%
Page 24 of 36
Page 106 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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
613237Workorder:
RPD/D%
Page 25 of 36
Page 107 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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
613237Workorder:
RPD/D%
Page 26 of 36
Page 108 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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
613237Workorder:
RPD/D%
Page 27 of 36
Page 109 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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
613237Workorder:
*
*
*
RPD/D%
Page 28 of 36
Page 110 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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
613237Workorder:
RPD/D%
Page 29 of 36
Page 111 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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
613237Workorder:
RPD/D%
Page 30 of 36
Page 112 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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
613237Workorder:
RPD/D%
Page 31 of 36
Page 113 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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%
613237Workorder:
RPD/D%
Page 32 of 36
Page 114 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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%
613237Workorder:
RPD/D%
Page 33 of 36
Page 115 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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%
613237Workorder:
RPD/D%
Page 34 of 36
Page 116 of 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - 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%
613237Workorder:
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 130 SDG: 613237
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Parmname
Page 36 of 36
Units Anlst Date TimeQCNOMSampleRangeQualREC%
613237Workorder:
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 130 SDG: 613237
Page 119 of 130 SDG: 613237
Page 120 of 130 SDG: 613237
Page 121 of 130 SDG: 613237
1
Jessica Ward
From:Bowyer, Jim <[e-mail]>
Sent:Wednesday, March 8, 2023 11:53 AM
To:Jessica Ward
Cc:Team Stone
Subject:RE: [External] Sample Collection time confirmation for Sample ID W110122-AS
[EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe.
That should be 11/08/22 Our sample IDs are the start date and location code and we sample for one week.

Jim Bowyer, Ph.D.
Laboratory Supervisor, Division of Air Quality
North Carolina Department of Environmental Quality
Office: [phone]
[e-mail]

4403 Reedy Creek Road
1622 Mail Service Center
Raleigh, NC 27699-1622

From: Jessica Ward <[e-mail]>
Sent: Wednesday, March 8, 2023 11:42 AM
To: Bowyer, Jim <[e-mail]>
Cc: Team Stone <[e-mail]>
Subject: [External] Sample Collection time confirmation for Sample ID W110122-AS

CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.

Jim,
Can you confirm the sample collection date for sample ID W110122-AS, the COC has 1/8/22 listed, I see where it looks
like someone made a correction on a different sample date on the COC, I was wonder if they by chance overlooked this
one. I have attached the COC in question to help.

Thank you,
Jessica Ward
Page 122 of 130 SDG: 613237
2

Project Manager Assistant

2040 Savage Road, Charleston, SC 29407 | P.O. Box 30712, Charleston, SC 29417
Office Main: 843.556.8171 | Office Direct: 843.556.8171 ext. 4523 | Office Fax: [phone]
E-Mail: [e-mail] | Website: www.gel.com

CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are the property of The GEL Group, Inc. and its
affiliates. All rights, including without limitation copyright, are reserved. The proprietary information contained in this e-
mail message, and any files transmitted with it, is intended for the use of the recipient(s) named above. If the reader of
this e-mail is not the intended recipient, you are hereby notified that you have received this e-mail in error and that any
review, distribution or copying of this e-mail or any files transmitted with it is strictly prohibited. If you have received
this e-mail in error, please notify the sender immediately and delete the original message and any files transmitted. The
unauthorized use of this e-mail or any files transmitted with it is prohibited and disclaimed by The GEL Group, Inc. and
its affiliates.
Page 123 of 130 SDG: 613237
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 124 of 130 SDG: 613237
LCMSMS-Misc
Technical Case Narrative
NC Dept Environmental Quality
SDG #: 613237

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: 2399562 and 2399559
The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification
613237001 D110122-32
613237002 W110122-33
613237003 D110122-33
613237004 W110122-MB
613237005 D110122-MB
613237006 W110122-PG
613237007 W110122-RK
613237008 FB110122-RK
1205347660 Method Blank (MB)
1205347661 Laboratory Control Sample (LCS)
1205347662 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 standard (ICV or CCV) requirements have not been met for sample 613237008
(FB110122-RK) 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
1205347660 (MB)Perfluoropropanoic acid (PFPrA)4.65 * 10 > 4.32
Page 125 of 130 SDG: 613237

Laboratory Control Sample Duplicate (LCSD)
An LCSD was used in place of matrix QC due to limited sample volume.

Laboratory Control Sample (LCS) Recovery
One or more of the required spiking analytes were not within the acceptance limits in the laboratory control
sample (LCS) with a negative bias. The samples are consumed. Therefore, the data must be reported as is.
Sample Analyte Value
1205347661 (LCS)Nafion Byproduct 4 (PFESA BP4)0* (5%-158%)
Nafion Byproduct 5 (PFESA BP5)0* (5%-149%)
R-EVE 0* (5%-158%)
1205347662 (LCSD)Nafion Byproduct 4 (PFESA BP4)1* (5%-158%)
Nafion Byproduct 5 (PFESA BP5)2* (5%-149%)
R-EVE 3* (5%-158%)

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. The samples are consumed. Therefore, the data must be reported as is.
Sample Analyte Value
1205347661 (LCS) and 1205347662 (LCSD)Nafion Byproduct 4 (PFESA BP4)RPD 200* (0%-45%)
Nafion Byproduct 5 (PFESA BP5)RPD 200* (0%-40%)
R-EVE RPD 200* (0%-26%)

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
613237001 (D110122-32)Received 07-MAR-23, out of holding 22-NOV-22
613237002 (W110122-33)Received 07-MAR-23, out of holding 22-NOV-22
613237003 (D110122-33)Received 07-MAR-23, out of holding 22-NOV-22
613237004 (W110122-MB)Received 07-MAR-23, out of holding 22-NOV-22
613237005 (D110122-MB)Received 07-MAR-23, out of holding 22-NOV-22
613237006 (W110122-PG)Received 07-MAR-23, out of holding 22-NOV-22
613237007 (W110122-RK)Received 07-MAR-23, out of holding 22-NOV-22
613237008 (FB110122-RK)Received 07-MAR-23, out of holding 22-NOV-22

Miscellaneous Information

Additional Comments
Page 126 of 130 SDG: 613237
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: 2399692 and 2399691
The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification
613237009 W110122-MH
613237010 W110122-AS
613237011 W110122-02
613237012 D110122-02
613237013 W110122-19
613237014 D110122-19
613237015 FB110122-19
613237016 W110122-21
613237017 D110122-21
613237019 D110122-21C
613237020 W110122-32
1205347918 Method Blank (MB)
1205347919 Laboratory Control Sample (LCS)
1205347920 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
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
1205347918 (MB)Perfluoropropanoic acid (PFPrA)5.06 * 10 > 3.86
Page 127 of 130 SDG: 613237

Laboratory Control Sample Duplicate (LCSD)
An LCSD was used in place of matrix QC due to limited sample volume.

Laboratory Control Sample (LCS) Recovery
LCSD (See Below) did not meet spike recovery acceptance criteria for all analytes. There were no additional
sample containers to allow for re-extractions therefore the data were reported as is.
Sample Analyte Value
1205347920 (LCSD)Nafion Byproduct 4 (PFESA BP4)3* (5%-158%)
Nafion Byproduct 5 (PFESA BP5)3* (5%-149%)
R-EVE 4* (5%-158%)

LCS/LCSD Relative Percent Difference (RPD) Statement
The relative percent difference between the LCS and LCSD (See Below) did not meet acceptance criteria for all
analytes due to low recoveries in the LCSD. There were no additional sample containers to allow for
re-extractions therefore the data were reported as is.
Sample Analyte Value
1205347919 (LCS) and 1205347920 (LCSD)Nafion Byproduct 5 (PFESA BP5)RPD 56* (0%-40%)
R-EVE RPD 200* (0%-26%)

Internal Standard (ISTD) Acceptance
Sample 613237014 (D110122-19) did not meet acceptance criteria for one or more internal standards with a
positive bias. The sample was diluted in order to bring internal standards within acceptance criteria. The results
for this sample were reported from the undiluted and diluted analyses.

Technical Information

Holding Time Specifications
Samples (See Below) did not meet holding time requirements due to insufficient time remaining to meet the hold
times. The following samples were received by the laboratory after the recommended holding time had expired.
Sample Analyte Value
613237009 (W110122-MH)Received 07-MAR-23, out of holding 22-NOV-22
613237010 (W110122-AS)Received 07-MAR-23, out of holding 22-NOV-22
613237011 (W110122-02)Received 07-MAR-23, out of holding 22-NOV-22
613237012 (D110122-02)Received 07-MAR-23, out of holding 22-NOV-22
613237013 (W110122-19)Received 07-MAR-23, out of holding 22-NOV-22
613237014 (D110122-19)Received 07-MAR-23, out of holding 22-NOV-22
613237015 (FB110122-19)Received 07-MAR-23, out of holding 22-NOV-22
613237016 (W110122-21)Received 07-MAR-23, out of holding 22-NOV-22
613237017 (D110122-21)Received 07-MAR-23, out of holding 22-NOV-22
613237019 (D110122-21C)Received 07-MAR-23, out of holding 22-NOV-22
613237020 (W110122-32)Received 07-MAR-23, out of holding 22-NOV-22
Page 128 of 130 SDG: 613237

Sample Dilutions
The following sample and/or QC were diluted due to the Internal Standard Recovery not within the limits in the
undiluted analysis. 613237014 (D110122-19).
Analyte
613237
014
Fluorotelomer sulfonic acid 4:2 (4:2 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: 2400011 and 2400001
The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification
613237018 W110122-21C
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
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.
Page 129 of 130 SDG: 613237
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
613237018 (W110122-21C)Received 07-MAR-23, out of holding 22-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.

Certification Statement

Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless otherwise noted in the analytical case narrative.
Page 130 of 130 SDG: 613237