655098_021624_1447 GEL DAQ Week of Jan 30-Feb 6, 2024 Nearfield & MB

February 16, 2024

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

Re: NCDAQ
Work Order: 655098

Dear Jim Bowyer:
GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the
sample(s) we received on February 13, 2024. This original data report has been prepared and reviewed in accordance
with GEL’s standard operating procedures.

The samples were delivered with proper chain of custody documentation and signatures. All sample containers
arrived without any visible signs of tampering or breakage. There are no additional comments concerning sample
receipt.
Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with
any exceptions noted. The results reported relate only to the items tested and to the sample as received by the
laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies of
GEL’s accreditations and certifications can be found on our website at www.gel.com.
Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on
time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions,
please do not hesitate to call me at [phone], ext. 1614.

Sincerely,

PM_SIGN_HERE
Delaney Stonesmith
Project Manager

Purchase Order: NCDAQ
Enclosures
Page 1 of 98 SDG: 655098
Abagail Martin 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: 655098 GEL Work Order: 655098
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the Certificate of Analysis.
The designation ND, if present, appears in the result column when the analyte concentration is not detected above
the limit as defined in the 'U' qualifier above.
This data report has been prepared and reviewed in accordance with GEL Laboratories LLC
standard operating procedures. Please direct any questions to your Project Manager, Delaney Stonesmith.
The Qualifiers in this report are defined as follows:
* A quality control analyte recovery is outside of specified acceptance criteria
** Analyte is a Tracer compound
** Analyte is a surrogate compound
J Value is estimated
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
for
Page 2 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301309ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.490
0.490
0.490
0.490
0.490
0.490
0.490
0.490
0.490
0.490
0.490
0.490
0.490
0.490
0.490
0.392
0.490
0.490
0.490
0.490
0.490
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098001
Water
06-FEB-24 09:08
13-FEB-24
W013024-MB NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
1UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
U
UX
UX
UX
U
JX
U
U
UX
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.279
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
Page 3 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301442
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
9.80
3.92
1.96
3.76
3.68
14.7
3.92
3.92
1.96
3.85
3.92
3.92
3.92
3.92
1.74
1.96
1.90
1.96
3.92
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:
655098001
W013024-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
3.92
1.29
0.647
1.29
1.29
5.27
1.29
1.29
0.647
1.29
1.29
1.29
1.29
1.29
0.647
0.784
0.647
0.764
0.647
2
X
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
17.3
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.36
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
Page 4 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
1.96
1.86
1.96
3.92
1.78
1.96
1.88
1.96
3.92
1.96
1.96
1.96
1.84
1.96
1.96
1.96
1.96
1
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:
655098001
W013024-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.647
0.647
0.647
1.29
0.647
0.784
0.686
0.647
1.29
0.784
0.647
0.784
0.647
0.647
0.784
0.647
0.647
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098001
W013024-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 6 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301843ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.486
0.486
0.486
0.486
0.486
0.486
0.486
0.486
0.486
0.486
0.486
0.486
0.486
0.486
0.486
0.389
0.486
0.486
0.486
0.486
0.486
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:
655098002
Water
06-FEB-24 09:08
13-FEB-24
D013024-MB NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
0.194
1UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
U
UX
UX
UX
U
UX
U
U
UX
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
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
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
Page 7 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301451
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
9.72
3.89
1.94
3.73
3.65
14.6
3.89
3.89
1.94
3.82
3.89
3.89
3.89
3.89
1.73
1.94
1.89
1.94
3.89
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:
655098002
D013024-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
3.89
1.28
0.641
1.28
1.28
5.23
1.28
1.28
0.641
1.28
1.28
1.28
1.28
1.28
0.641
0.777
0.641
0.758
0.641
2
UX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic 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
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
Page 8 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
1.94
1.85
1.94
3.89
1.77
1.94
1.87
1.94
3.89
1.94
1.94
1.94
1.83
1.94
1.94
1.94
1.94
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098002
D013024-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.641
0.641
0.641
1.28
0.641
0.777
0.680
0.641
1.28
0.777
0.641
0.777
0.641
0.641
0.777
0.641
0.641
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
0.0194
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098002
D013024-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 10 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301500ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB31.99
3.81
3.73
14.9
3.97
3.97
1.99
3.90
3.97
3.97
3.97
3.97
1.77
1.99
1.93
1.99
3.97
1.99
1.89
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:
655098003
Water
06-FEB-24 11:09
13-FEB-24
W013024-02 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.655
1.31
1.31
5.34
1.31
1.31
0.655
1.31
1.31
1.31
1.31
1.31
0.655
0.794
0.655
0.775
0.655
0.655
0.655
1U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
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
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 11 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301340
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK2
1.99
3.97
1.81
1.99
1.91
1.99
3.97
1.99
1.99
1.99
1.87
1.99
1.99
1.99
1.99
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
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098003
W013024-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.655
1.31
0.655
0.794
0.695
0.655
1.31
0.794
0.655
0.794
0.655
0.655
0.794
0.655
0.655
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
0.199
2
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
UX
J
UX
X
UX
UX
UX
UX
UX
U
U
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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
0.201
ND
1.03
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
0.0199
Page 12 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
0.397
0.497
0.497
0.497
0.497
0.497
9.93
3.97
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:
655098003
W013024-02 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
0.199
0.199
0.199
3.97
1.31
U
UX
UX
UX
U
UX
U
U
UX
U
UX
UX
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
0.0199
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098003
W013024-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 14 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301355ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.519
0.519
0.519
0.519
0.519
0.519
0.519
0.519
0.519
0.519
0.519
0.519
0.519
0.519
0.519
0.415
0.519
0.519
0.519
0.519
0.519
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:
655098004
Water
06-FEB-24 11:09
13-FEB-24
D013024-02 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
0.208
1X
UX
X
UX
UX
UX
JX
UX
U
U
U
UX
JX
JX
U
JX
U
U
UX
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
EPA 537Mod PFCs by LC-MS/MS "As Received"
1.35
2.47
ND
1.15
ND
ND
ND
0.413
ND
ND
ND
ND
ND
0.305
0.386
ND
0.224
ND
ND
ND
ND
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
Page 15 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301509
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
10.4
4.15
2.08
3.99
3.90
15.6
4.15
4.15
2.08
4.08
4.15
4.15
4.15
4.15
1.85
2.08
2.01
2.08
4.15
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:
655098004
D013024-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.15
1.37
0.685
1.37
1.37
5.58
1.37
1.37
0.685
1.37
1.37
1.37
1.37
1.37
0.685
0.830
0.685
0.810
0.685
2
JX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
9.98
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
Page 16 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
2.08
1.97
2.08
4.15
1.89
2.08
1.99
2.08
4.15
2.08
2.08
2.08
1.95
2.08
2.08
2.08
2.08
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:
655098004
D013024-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.685
0.685
0.685
1.37
0.685
0.830
0.727
0.685
1.37
0.830
0.685
0.830
0.685
0.685
0.830
0.685
0.685
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
0.0208
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098004
D013024-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 18 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301410ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.410
0.512
0.512
0.512
0.512
0.512
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098005
Water
06-FEB-24 11:30
13-FEB-24
W013024-19 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
1UX
UX
X
UX
UX
X
UX
UX
U
U
U
UX
UX
UX
U
UX
U
U
X
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
1.91
ND
0.561
ND
ND
0.810
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.62
ND
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
Page 19 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301518
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
10.2
4.10
2.05
3.93
3.85
15.4
4.10
4.10
2.05
4.02
4.10
4.10
4.10
4.10
1.82
2.05
1.99
2.05
4.10
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:
655098005
W013024-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.10
1.35
0.676
1.35
1.35
5.51
1.35
1.35
0.676
1.35
1.35
1.35
1.35
1.35
0.676
0.819
0.676
0.799
0.676
2
JX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
8.81
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
Page 20 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
2.05
1.95
2.05
4.10
1.86
2.05
1.97
2.05
4.10
2.05
2.05
2.05
1.93
2.05
2.05
2.05
2.05
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:
655098005
W013024-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.676
0.676
0.676
1.35
0.676
0.819
0.717
0.676
1.35
0.819
0.676
0.819
0.676
0.676
0.819
0.676
0.676
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098005
W013024-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 22 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301527ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB32.01
3.86
3.78
15.1
4.02
4.02
2.01
3.95
4.02
4.02
4.02
4.02
1.79
2.01
1.95
2.01
4.02
2.01
1.91
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:
655098006
Water
06-FEB-24 11:30
13-FEB-24
D013024-19 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.663
1.33
1.33
5.40
1.33
1.33
0.663
1.33
1.33
1.33
1.33
1.33
0.663
0.804
0.663
0.784
0.663
0.663
0.663
1U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
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
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301425
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK2
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
0.502
0.502
0.502
0.502
0.502
0.502
0.502
0.502
0.502
0.502
0.502
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098006
D013024-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.663
1.33
0.663
0.804
0.703
0.663
1.33
0.804
0.663
0.804
0.663
0.663
0.804
0.663
0.663
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
2
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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
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
0.0201
Page 24 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
0.502
0.502
0.502
0.502
0.402
0.502
0.502
0.502
0.502
0.502
10.0
4.02
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:
655098006
D013024-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
4.02
1.33
U
UX
UX
UX
U
UX
U
U
UX
U
UX
UX
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
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
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098006
D013024-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 26 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301440ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.400
0.500
0.500
0.500
0.500
0.500
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:
655098007
Water
06-FEB-24 11:40
13-FEB-24
W013024-32 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
1UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
U
UX
UX
UX
U
UX
U
U
UX
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
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
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
Page 27 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301536
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
10.0
4.00
2.00
3.84
3.76
15.0
4.00
4.00
2.00
3.93
4.00
4.00
4.00
4.00
1.78
2.00
1.94
2.00
4.00
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:
655098007
W013024-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.00
1.32
0.661
1.32
1.32
5.38
1.32
1.32
0.661
1.32
1.32
1.32
1.32
1.32
0.661
0.801
0.661
0.781
0.661
2
JX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
9.91
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
Page 28 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
2.00
1.90
2.00
4.00
1.82
2.00
1.92
2.00
4.00
2.00
2.00
2.00
1.88
2.00
2.00
2.00
2.00
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:
655098007
W013024-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.661
0.661
0.661
1.32
0.661
0.801
0.701
0.661
1.32
0.801
0.661
0.801
0.661
0.661
0.801
0.661
0.661
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
0.0200
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098007
W013024-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 30 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301554ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB32.04
3.92
3.84
15.3
4.08
4.08
2.04
4.01
4.08
4.08
4.08
4.08
1.82
2.04
1.98
2.04
4.08
2.04
1.94
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:
655098008
Water
06-FEB-24 11:40
13-FEB-24
D013024-32 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.674
1.35
1.35
5.49
1.35
1.35
0.674
1.35
1.35
1.35
1.35
1.35
0.674
0.816
0.674
0.796
0.674
0.674
0.674
1U
U
U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.25
ND
ND
ND
ND
ND
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
Page 31 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301511
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK2
2.04
4.08
1.86
2.04
1.96
2.04
4.08
2.04
2.04
2.04
1.92
2.04
2.04
2.04
2.04
0.510
0.510
0.510
0.510
0.510
0.510
0.510
0.510
0.510
0.510
0.510
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098008
D013024-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.674
1.35
0.674
0.816
0.714
0.674
1.35
0.816
0.674
0.816
0.674
0.674
0.816
0.674
0.674
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
2
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
JX
UX
X
UX
UX
UX
JX
UX
U
U
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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
0.474
1.66
ND
1.08
ND
ND
ND
0.393
ND
ND
ND
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
Page 32 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
0.510
0.510
0.510
0.510
0.408
0.510
0.510
0.510
0.510
0.510
10.2
4.08
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:
655098008
D013024-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
4.08
1.35
U
UX
UX
UX
U
UX
U
U
UX
U
UX
UX
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098008
D013024-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 34 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301526ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.503
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
0.403
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
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098009
Water
06-FEB-24 12:40
13-FEB-24
W013024-33 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
0.201
0.201
0.201
1UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
U
UX
UX
UX
U
UX
U
U
UX
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
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
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 35 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301603
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
10.1
4.03
2.01
3.87
3.79
15.1
4.03
4.03
2.01
3.95
4.03
4.03
4.03
4.03
1.79
2.01
1.95
2.01
4.03
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:
655098009
W013024-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.03
1.33
0.664
1.33
1.33
5.42
1.33
1.33
0.664
1.33
1.33
1.33
1.33
1.33
0.664
0.805
0.664
0.785
0.664
2
JX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
8.42
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
Page 36 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
1.91
2.01
4.03
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
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:
655098009
W013024-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.664
0.664
0.664
1.33
0.664
0.805
0.705
0.664
1.33
0.805
0.664
0.805
0.664
0.664
0.805
0.664
0.664
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098009
W013024-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 38 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301541ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.505
0.505
0.505
0.505
0.505
0.505
0.505
0.505
0.505
0.505
0.505
0.505
0.505
0.505
0.505
0.404
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
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098010
Water
06-FEB-24 12:40
13-FEB-24
D013024-33 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
1X
UX
X
UX
UX
JX
X
X
U
U
U
UX
UX
UX
J
JX
U
U
JX
J
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
EPA 537Mod PFCs by LC-MS/MS "As Received"
2.50
8.94
ND
6.63
ND
ND
0.225
7.05
0.726
ND
ND
ND
ND
ND
ND
0.279
0.415
ND
ND
0.384
0.260
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 39 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301613
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
10.1
4.04
2.02
3.88
3.80
15.2
4.04
4.04
2.02
3.97
4.04
4.04
4.04
4.04
1.80
2.02
1.96
2.02
4.04
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:
655098010
D013024-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.04
1.33
0.667
1.33
1.33
5.44
1.33
1.33
0.667
1.33
1.33
1.33
1.33
1.33
0.667
0.809
0.667
0.788
0.667
2
UX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.821
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
Page 40 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
1.92
2.02
4.04
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
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:
655098010
D013024-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.667
0.667
0.667
1.33
0.667
0.809
0.708
0.667
1.33
0.809
0.667
0.809
0.667
0.667
0.809
0.667
0.667
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098010
D013024-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 42 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301556ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.521
0.521
0.521
0.521
0.521
0.521
0.521
0.521
0.521
0.521
0.521
0.521
0.521
0.521
0.521
0.417
0.521
0.521
0.521
0.521
0.521
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:
655098011
Water
06-FEB-24 13:15
13-FEB-24
W013024-21 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
1JX
UX
X
UX
UX
UX
UX
UX
U
U
U
UX
JX
JX
U
UX
U
U
UX
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.219
1.38
ND
0.683
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.287
0.286
ND
ND
ND
ND
ND
ND
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
Page 43 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678301622
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
10.4
4.17
2.09
4.00
3.92
15.6
4.17
4.17
2.09
4.10
4.17
4.17
4.17
4.17
1.86
2.09
2.02
2.09
4.17
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:
655098011
W013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.17
1.38
0.688
1.38
1.38
5.61
1.38
1.38
0.688
1.38
1.38
1.38
1.38
1.38
0.688
0.834
0.688
0.813
0.688
2
X
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
10.7
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
Page 44 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
2.09
1.98
2.09
4.17
1.90
2.09
2.00
2.09
4.17
2.09
2.09
2.09
1.96
2.09
2.09
2.09
2.09
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:
655098011
W013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.688
0.688
0.688
1.38
0.688
0.834
0.730
0.688
1.38
0.834
0.688
0.834
0.688
0.688
0.834
0.688
0.688
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
0.0209
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678290749EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098011
W013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 46 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411838ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB32.04
3.92
3.84
15.3
4.08
4.08
2.04
4.01
4.08
4.08
4.08
4.08
1.82
2.04
1.98
2.04
4.08
2.04
1.94
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:
655098012
Water
06-FEB-24 13:15
13-FEB-24
D013024-21 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.673
1.35
1.35
5.49
1.35
1.35
0.673
1.35
1.35
1.35
1.35
1.35
0.673
0.816
0.673
0.796
0.673
0.673
0.673
1U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
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
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
Page 47 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411712
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK2
2.04
4.08
1.86
2.04
1.96
2.04
4.08
2.04
2.04
2.04
1.92
2.04
2.04
2.04
2.04
0.510
0.510
0.510
0.510
0.510
0.510
0.510
0.510
0.510
0.510
0.510
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098012
D013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.673
1.35
0.673
0.816
0.714
0.673
1.35
0.816
0.673
0.816
0.673
0.673
0.816
0.673
0.673
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
2
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
X
UX
X
UX
UX
UX
X
JX
U
U
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
3.40
9.97
ND
1.27
ND
ND
ND
8.74
0.218
ND
ND
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
Page 48 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
0.510
0.510
0.510
0.510
0.408
0.510
0.510
0.510
0.510
0.510
10.2
4.08
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:
655098012
D013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
4.08
1.35
U
UX
UX
JX
J
UX
U
U
UX
J
UX
UX
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
0.263
0.391
ND
ND
ND
ND
0.323
ND
ND
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678391205EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098012
D013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 50 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411847ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB32.20
4.22
4.13
16.5
4.39
4.39
2.20
4.31
4.39
4.39
4.39
4.39
1.95
2.20
2.13
2.20
4.39
2.20
2.09
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:
655098013
Water
06-FEB-24 13:15
13-FEB-24
W013024-21C NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.725
1.45
1.45
5.91
1.45
1.45
0.725
1.45
1.45
1.45
1.45
1.45
0.725
0.878
0.725
0.856
0.725
0.725
0.725
1U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
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
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
Page 51 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411727
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK2
2.20
4.39
2.00
2.20
2.11
2.20
4.39
2.20
2.20
2.20
2.06
2.20
2.20
2.20
2.20
0.549
0.549
0.549
0.549
0.549
0.549
0.549
0.549
0.549
0.549
0.549
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098013
W013024-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.725
1.45
0.725
0.878
0.768
0.725
1.45
0.878
0.725
0.878
0.725
0.725
0.878
0.725
0.725
0.220
0.220
0.220
0.220
0.220
0.220
0.220
0.220
0.220
0.220
0.220
2
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
JX
UX
X
UX
UX
UX
X
UX
U
U
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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
0.248
3.01
ND
1.07
ND
ND
ND
0.712
ND
ND
ND
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
Page 52 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
0.549
0.549
0.549
0.549
0.439
0.549
0.549
0.549
0.549
0.549
11.0
4.39
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:
655098013
W013024-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.220
0.220
0.220
0.220
0.220
0.220
0.220
0.220
0.220
0.220
4.39
1.45
U
JX
JX
JX
J
JX
U
U
UX
U
JX
UX
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
0.253
0.339
0.501
0.305
0.248
ND
ND
ND
ND
8.70
ND
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
0.0220
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678391205EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098013
W013024-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 54 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411742ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.489
0.391
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
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098014
Water
06-FEB-24 13:15
13-FEB-24
D013024-21C NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
0.196
1X
UX
X
UX
UX
UX
X
JX
U
U
U
UX
UX
UX
J
UX
U
U
UX
J
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
EPA 537Mod PFCs by LC-MS/MS "As Received"
2.35
8.65
ND
0.676
ND
ND
ND
10.7
0.222
ND
ND
ND
ND
ND
ND
0.285
ND
ND
ND
ND
0.226
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 55 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678410851
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/15/24JMB3
9.78
3.91
1.96
3.76
3.68
14.7
3.91
3.91
1.96
3.84
3.91
3.91
3.91
3.91
1.74
1.96
1.90
1.96
3.91
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:
655098014
D013024-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
3.91
1.29
0.646
1.29
1.29
5.26
1.29
1.29
0.646
1.29
1.29
1.29
1.29
1.29
0.646
0.783
0.646
0.763
0.646
2
UX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic 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
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 56 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
1.96
1.86
1.96
3.91
1.78
1.96
1.88
1.96
3.91
1.96
1.96
1.96
1.84
1.96
1.96
1.96
1.96
1
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:
655098014
D013024-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.646
0.646
0.646
1.29
0.646
0.783
0.685
0.646
1.29
0.783
0.646
0.783
0.646
0.646
0.783
0.646
0.646
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
0.0196
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678391205EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 57 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098014
D013024-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 58 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411758ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.516
0.413
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
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098015
Water
06-FEB-24 13:15
13-FEB-24
FB013024-21 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
0.207
1UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
U
UX
UX
UX
U
UX
U
U
UX
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
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
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
Page 59 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411915
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
10.3
4.13
2.07
3.97
3.88
15.5
4.13
4.13
2.07
4.06
4.13
4.13
4.13
4.13
1.84
2.07
2.00
2.07
4.13
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:
655098015
FB013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.13
1.36
0.682
1.36
1.36
5.56
1.36
1.36
0.682
1.36
1.36
1.36
1.36
1.36
0.682
0.826
0.682
0.806
0.682
2
UX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic 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
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 60 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
2.07
1.96
2.07
4.13
1.88
2.07
1.98
2.07
4.13
2.07
2.07
2.07
1.94
2.07
2.07
2.07
2.07
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098015
FB013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.682
0.682
0.682
1.36
0.682
0.826
0.723
0.682
1.36
0.826
0.682
0.826
0.682
0.682
0.826
0.682
0.682
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
0.0207
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678391205EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098015
FB013024-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 62 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411813ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24DK20.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.512
0.409
0.512
0.512
0.512
0.512
0.512
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098016
Water
12-FEB-24 08:30
13-FEB-24
TB013024-00 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
0.205
1UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
U
UX
UX
UX
U
UX
U
U
UX
U
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(3,5,7,9,11-
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-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic acid
(PFMOPrA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoroethoxypropionic acid
(EVE)
2,3,3,3-Tetrafluoro-2-
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
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
Page 63 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25678411924
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
02/14/24JMB3
10.2
4.09
2.05
3.93
3.85
15.4
4.09
4.09
2.05
4.02
4.09
4.09
4.09
4.09
1.82
2.05
1.99
2.05
4.09
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:
655098016
TB013024-00 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.09
1.35
0.676
1.35
1.35
5.51
1.35
1.35
0.676
1.35
1.35
1.35
1.35
1.35
0.676
0.819
0.676
0.798
0.676
2
UX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(pentafluoroethoxy)propanoic acid
(PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic 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
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
Page 64 of 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
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
2.05
1.95
2.05
4.09
1.86
2.05
1.97
2.05
4.09
2.05
2.05
2.05
1.92
2.05
2.05
2.05
2.05
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098016
TB013024-00 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.676
0.676
0.676
1.35
0.676
0.819
0.717
0.676
1.35
0.819
0.676
0.819
0.676
0.676
0.819
0.676
0.676
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
0.0205
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 02/14/24 25678391205EF
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 98 SDG: 655098
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: February 16, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
655098016
TB013024-00 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:

Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Page 66 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
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
February 16, 2024Report Date:
Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
JMB3
DK2
JMB3
DK2
JMB3
DK2
02/14/24 12:39
02/14/24 14:23
02/14/24 12:39
02/14/24 14:23
02/14/24 12:39
02/14/24 14:23
02/14/24 12:39
QC
19.0
18.8
17.9
19.1
18.3
15.2
18.8
24.0
16.5
22.8
17.0
17.3
19.1
NOM Sample Range
(57%-151%)
(59%-138%)
(62%-140%)
(62%-141%)
(58%-133%)
(56%-145%)
(69%-147%)
(69%-139%)
(68%-137%)
(54%-148%)
(61%-150%)
(57%-147%)
(66%-146%)
Qual
X
X
X
QC1205648909
REC%
100
104
94
100
96
79
99
126
93
128
94
94
100
19.1
18.0
19.1
19.1
19.1
19.1
19.1
19.1
17.8
17.8
18.1
18.3
19.1
LCS
655098Workorder:
North Carolina Department of Environment
RPD/D%
Page 1 of 25
Page 67 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
02/14/24 14:23
02/14/24 12:39
QC
18.3
17.4
18.4
19.0
15.3
22.8
14.8
13.7
19.1
17.9
18.8
17.1
17.7
16.4
22.7
NOM Sample Range
(40%-152%)
(60%-139%)
(41%-150%)
(64%-144%)
(40%-131%)
(60%-139%)
(21%-138%)
(18%-146%)
(64%-140%)
(55%-144%)
(60%-145%)
(57%-143%)
(63%-147%)
(66%-143%)
(64%-140%)
Qual
X
X
X
X
X
X
X
X
REC%
96
91
96
100
80
120
78
72
100
94
99
90
93
86
119
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
655098Workorder:
RPD/D%
Page 2 of 25
Page 68 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
JMB3
DK2
JMB3
02/14/24 12:39
02/14/24 14:23
02/14/24 12:39
02/14/24 14:23
QC
18.0
20.3
18.7
20.3
16.3
18.8
18.4
19.8
17.0
23.8
17.2
19.6
19.1
27.0
17.3
NOM Sample Range
(62%-142%)
(56%-144%)
(57%-140%)
(64%-147%)
(70%-139%)
(77%-146%)
(62%-133%)
(68%-140%)
(55%-135%)
(69%-139%)
(34%-140%)
(67%-141%)
(71%-138%)
(59%-160%)
(63%-142%)
Qual
X
X
REC%
94
106
98
107
97
98
100
104
92
124
90
108
100
141
100
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
655098Workorder:
RPD/D%
Page 3 of 25
Page 69 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
02/14/24 14:23
02/14/24 12:39
02/14/24 14:23
02/14/24 12:39
02/14/24 12:54
QC
18.8
17.5
19.1
13.6
20.4
19.5
19.8
18.2
18.5
18.4
18.8
16.7
21.9
18.0
20.1
NOM Sample Range
(71%-139%)
(67%-134%)
(71%-136%)
(8%-124%)
(68%-137%)
(68%-141%)
(70%-138%)
(63%-141%)
(71%-139%)
(54%-156%)
(70%-138%)
(61%-141%)
(68%-139%)
(25%-144%)
(0%-28%)
Qual
X
X
X
QC1205648910
6
REC%
99
95
100
71
107
102
104
101
97
96
99
88
114
94
105
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
655098Workorder:
RPD/D%
Page 4 of 25
Page 70 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
JMB3
DK2
JMB3
02/14/24 14:32
02/14/24 12:54
02/14/24 14:32
02/14/24 12:54
02/14/24 14:32
02/14/24 12:54
02/14/24 14:32
QC
18.6
19.6
19.1
18.4
17.8
19.4
25.3
17.9
21.2
18.7
20.1
19.7
19.4
18.5
19.9
NOM Sample Range
(0%-27%)
(0%-27%)
(0%-24%)
(0%-28%)
(0%-32%)
(0%-25%)
(0%-25%)
(0%-26%)
(0%-34%)
(0%-36%)
(0%-35%)
(0%-26%)
(0%-31%)
(0%-31%)
(0%-34%)
Qual
X
X
1
9
0
1
16
3
5
8
7
9
15
3
5
6
8
REC%
103
102
100
96
93
101
132
100
118
102
109
103
101
96
104
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
655098Workorder:
RPD/D%
Page 5 of 25
Page 71 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
02/14/24 14:32
02/14/24 12:54
QC
20.7
16.2
23.6
15.5
14.0
19.7
18.1
19.1
17.8
17.9
17.6
23.3
18.4
20.9
19.2
NOM Sample Range
(0%-30%)
(0%-28%)
(0%-23%)
(0%-41%)
(0%-35%)
(0%-26%)
(0%-30%)
(0%-31%)
(0%-34%)
(0%-33%)
(0%-30%)
(0%-24%)
(0%-25%)
(0%-25%)
(0%-28%)
Qual
X
X
X
X
X
X
X
X
X
8
6
3
4
2
3
1
1
4
1
7
3
2
3
3
REC%
108
85
123
81
73
103
94
99
93
93
92
121
96
109
100
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
655098Workorder:
RPD/D%
Page 6 of 25
Page 72 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
JMB3
DK2
JMB3
02/14/24 12:54
02/14/24 14:32
02/14/24 12:54
02/14/24 14:32
QC
21.4
17.5
19.9
18.6
21.6
16.6
25.2
17.3
19.0
19.9
28.0
18.3
20.0
18.6
21.0
NOM Sample Range
(0%-23%)
(0%-31%)
(0%-21%)
(0%-25%)
(0%-26%)
(0%-30%)
(0%-24%)
(0%-28%)
(0%-33%)
(0%-26%)
(0%-21%)
(0%-33%)
(0%-24%)
(0%-26%)
(0%-25%)
Qual
X
5
7
6
1
9
2
6
0
3
4
4
5
6
6
10
REC%
112
103
104
101
113
89
131
90
105
104
146
104
104
101
110
19.2
17.0
19.2
18.5
19.2
18.6
19.2
19.2
18.2
19.2
19.2
17.5
19.2
18.4
19.2
655098Workorder:
RPD/D%
Page 7 of 25
Page 73 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
JMB3
DK2
02/14/24 14:32
02/14/24 12:54
02/14/24 14:32
02/14/24 12:54
02/14/24 12:24
02/14/24 14:14
02/14/24 12:24
QC
14.7
21.3
19.5
19.3
19.2
20.5
19.4
19.7
18.8
24.4
20.5
ND
ND
ND
ND
NOM Sample Range
(0%-35%)
(0%-22%)
(0%-25%)
(0%-24%)
(0%-37%)
(0%-23%)
(0%-24%)
(0%-23%)
(0%-27%)
(0%-27%)
(0%-30%)
Qual
X
X
UX
U
U
U
QC1205648908
8
4
0
2
5
10
6
4
12
11
13
REC%
77
111
102
101
106
107
101
103
98
127
107
19.2
19.2
19.2
19.2
18.0
19.2
19.2
19.2
19.2
19.2
19.2
MB
655098Workorder:
RPD/D%
Page 8 of 25
Page 74 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
JMB3
DK2
02/14/24 14:14
02/14/24 12:24
02/14/24 14:14
02/14/24 12:24
02/14/24 14:14
02/14/24 12:24
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%
655098Workorder:
RPD/D%
Page 9 of 25
Page 75 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
JMB3
02/14/24 12:24
02/14/24 14:14
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
UX
UX
UX
U
U
U
UX
UX
UX
U
U
UX
U
U
U
REC%
655098Workorder:
RPD/D%
Page 10 of 25
Page 76 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830Batch
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
02/14/24 14:14
02/14/24 12:24
02/14/24 14:14
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%
655098Workorder:
RPD/D%
Page 11 of 25
Page 77 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567830
2567841
Batch
Batch
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
DK2
JMB3
DK2
JMB3
02/14/24 14:14
02/14/24 12:24
02/14/24 14:14
02/14/24 12:24
02/14/24 16:42
02/14/24 18:20
02/14/24 16:42
02/14/24 18:20
QC
ND
ND
ND
ND
ND
ND
ND
ND
20.5
19.5
20.9
19.7
17.6
15.7
NOM Sample Range
(57%-151%)
(59%-138%)
(62%-140%)
(62%-141%)
(58%-133%)
(56%-145%)
Qual
U
U
U
UX
U
U
U
UX
X
QC1205648933
REC%
104
105
106
100
90
80
19.6
18.5
19.6
19.6
19.6
19.6
LCS
655098Workorder:
RPD/D%
Page 12 of 25
Page 78 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
JMB3
DK2
02/14/24 18:20
02/14/24 16:42
02/14/24 18:20
02/14/24 16:42
02/14/24 18:20
02/14/24 16:42
QC
19.0
28.7
18.9
18.6
18.4
15.8
21.4
19.7
19.1
18.9
20.1
18.2
25.3
15.2
13.9
NOM Sample Range
(69%-147%)
(69%-139%)
(68%-137%)
(54%-148%)
(61%-150%)
(57%-147%)
(66%-146%)
(40%-152%)
(60%-139%)
(41%-150%)
(64%-144%)
(40%-131%)
(60%-139%)
(21%-138%)
(18%-146%)
Qual
X
X
X
X
X
X
REC%
97
146
103
101
99
84
109
100
97
96
102
93
129
77
71
19.6
19.6
18.3
18.4
18.7
18.9
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
655098Workorder:
*
RPD/D%
Page 13 of 25
Page 79 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
JMB3
02/14/24 16:42
02/14/24 18:20
QC
20.6
18.8
22.0
18.1
20.5
18.7
25.7
20.7
22.5
20.0
21.6
16.7
19.5
19.3
20.9
NOM Sample Range
(64%-140%)
(55%-144%)
(60%-145%)
(57%-143%)
(63%-147%)
(66%-143%)
(64%-140%)
(62%-142%)
(56%-144%)
(57%-140%)
(64%-147%)
(70%-139%)
(77%-146%)
(62%-133%)
(68%-140%)
Qual
X
X
X
X
X
REC%
105
96
112
92
104
95
131
106
115
102
110
96
99
102
106
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
17.4
19.6
19.0
19.6
655098Workorder:
RPD/D%
Page 14 of 25
Page 80 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
02/14/24 18:20
02/14/24 16:42
02/14/24 18:20
QC
17.1
23.7
18.6
21.0
19.8
26.7
18.7
19.5
19.1
22.2
17.6
20.4
20.8
19.8
18.9
NOM Sample Range
(55%-135%)
(69%-139%)
(34%-140%)
(67%-141%)
(71%-138%)
(59%-160%)
(63%-142%)
(71%-139%)
(67%-134%)
(71%-136%)
(8%-124%)
(68%-137%)
(68%-141%)
(70%-138%)
(63%-141%)
Qual
X
REC%
90
121
95
113
101
136
104
99
101
113
90
104
106
101
102
19.0
19.6
19.6
18.7
19.6
19.6
17.9
19.6
18.9
19.6
19.6
19.6
19.6
19.6
18.5
655098Workorder:
RPD/D%
Page 15 of 25
Page 81 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
JMB3
DK2
JMB3
DK2
JMB3
02/14/24 18:20
02/14/24 16:42
02/14/24 18:20
02/14/24 16:42
02/14/24 16:57
02/14/24 18:29
02/14/24 16:57
02/14/24 18:29
02/14/24 16:57
02/14/24 18:29
QC
20.9
19.7
19.0
21.0
22.7
21.5
17.9
18.7
18.7
18.8
17.8
16.9
18.1
26.2
19.3
NOM Sample Range
(71%-139%)
(54%-156%)
(70%-138%)
(61%-141%)
(68%-139%)
(25%-144%)
(0%-28%)
(0%-27%)
(0%-27%)
(0%-24%)
(0%-28%)
(0%-32%)
(0%-25%)
(0%-25%)
(0%-26%)
Qual
X
X
X
X
QC1205648934
13
4
11
5
1
7
5
9
2
REC%
106
100
97
107
116
109
95
105
99
100
94
89
96
139
110
19.6
19.6
19.6
19.6
19.6
19.6
18.9
17.8
18.9
18.9
18.9
18.9
18.9
18.9
17.6
LCSD
655098Workorder:
RPD/D%
Page 16 of 25
Page 82 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
02/14/24 18:29
02/14/24 16:57
02/14/24 18:29
02/14/24 16:57
QC
19.4
19.8
16.9
19.0
19.1
19.4
20.4
19.6
16.8
24.1
16.4
14.1
19.0
17.6
18.4
NOM Sample Range
(0%-34%)
(0%-36%)
(0%-35%)
(0%-26%)
(0%-31%)
(0%-31%)
(0%-34%)
(0%-30%)
(0%-28%)
(0%-23%)
(0%-41%)
(0%-35%)
(0%-26%)
(0%-30%)
(0%-31%)
Qual
X
X
X
X
X
X
4
8
7
12
3
2
8
3
8
5
7
1
8
7
18
REC%
110
111
93
101
101
103
108
104
89
128
87
75
101
93
97
17.6
17.9
18.1
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
655098Workorder:
RPD/D%
Page 17 of 25
Page 83 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
JMB3
DK2
02/14/24 16:57
02/14/24 18:29
02/14/24 16:57
QC
17.3
18.3
17.3
23.1
19.0
20.1
19.0
21.4
17.3
19.4
18.6
19.9
16.7
24.1
18.7
NOM Sample Range
(0%-34%)
(0%-33%)
(0%-30%)
(0%-24%)
(0%-25%)
(0%-25%)
(0%-28%)
(0%-23%)
(0%-31%)
(0%-21%)
(0%-25%)
(0%-26%)
(0%-30%)
(0%-24%)
(0%-28%)
Qual
X
X
X
X
X
5
11
8
10
9
11
5
1
3
0
4
5
3
2
1
REC%
92
97
92
123
101
106
101
114
104
103
102
105
91
128
99
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
16.7
18.9
18.2
18.9
18.3
18.9
18.9
655098Workorder:
RPD/D%
Page 18 of 25
Page 84 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
02/14/24 18:29
02/14/24 16:57
02/14/24 18:29
QC
19.8
20.1
26.9
17.8
20.4
18.5
21.5
19.7
20.6
20.0
19.7
18.2
20.9
19.4
19.2
NOM Sample Range
(0%-33%)
(0%-26%)
(0%-21%)
(0%-33%)
(0%-24%)
(0%-26%)
(0%-25%)
(0%-35%)
(0%-22%)
(0%-25%)
(0%-24%)
(0%-37%)
(0%-23%)
(0%-24%)
(0%-23%)
Qual
X
6
2
1
5
5
3
3
11
1
4
1
4
0
1
1
REC%
110
107
142
103
108
102
114
105
109
106
104
103
111
103
102
17.9
18.9
18.9
17.2
18.9
18.1
18.9
18.9
18.9
18.9
18.9
17.7
18.9
18.9
18.9
655098Workorder:
RPD/D%
Page 19 of 25
Page 85 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (F-
53B Minor)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2,3,3,3-Tetrafluoro-2-
(pentafluoroethoxy)propanoic acid
(PEPA)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA,ADONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (F-53B
Major)
Fluorotelomer sulfonic acid 4:2 (4:2
FTS)
Fluorotelomer sulfonic acid 6:2 (6:2
FTS)
Fluorotelomer sulfonic acid 8:2 (8:2
FTS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
JMB3
DK2
JMB3
02/14/24 18:29
02/14/24 16:57
02/14/24 16:26
02/14/24 18:11
02/14/24 16:26
02/14/24 18:11
02/14/24 16:26
02/14/24 18:11
QC
20.6
22.7
19.3
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample Range
(0%-27%)
(0%-27%)
(0%-30%)
Qual
X
UX
U
U
U
U
U
U
UX
U
U
U
U
QC1205648932
2
0
11
REC%
109
120
102
18.9
18.9
18.9
MB
655098Workorder:
RPD/D%
Page 20 of 25
Page 86 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA or TAFN4)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
JMB3
DK2
02/14/24 16:26
02/14/24 18:11
02/14/24 16:26
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
U
UX
UX
REC%
655098Workorder:
RPD/D%
Page 21 of 25
Page 87 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutanesulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanesulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanesulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroheptanesulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
JMB3
DK2
JMB3
02/14/24 16:26
02/14/24 18:11
02/14/24 16:26
02/14/24 18:11
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
UX
U
U
UX
U
U
U
U
U
U
U
UX
U
U
U
REC%
655098Workorder:
RPD/D%
Page 22 of 25
Page 88 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2567841Batch
Perfluorohexanesulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanesulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanesulfonic acid
(PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
JMB3
DK2
JMB3
DK2
02/14/24 18:11
02/14/24 16:26
02/14/24 18:11
02/14/24 16:26
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
U
U
U
U
U
U
U
U
U
U
UX
U
U
U
UX
REC%
655098Workorder:
RPD/D%
Notes:
Page 23 of 25
Page 89 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Parmname Units Anlst Date TimeQCNOMSampleRangeQual
The Qualifiers in this report are defined as follows:
REC%
655098Workorder:
U
J
P
C
B
E
A
X
N
H
**
<
>
h
R
^
D
N/A
ND
NJ
JNX
UJ
Q
N1
Y
N
J
I
Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
Value is estimated
Organics--The concentrations between the primary and confirmation columns/detectors is >40% different. For HPLC, the difference is >70%.
Analyte has been confirmed by GC/MS analysis
The target analyte was detected in the associated blank.
Concentration of the target analyte exceeds the instrument calibration range
The TIC is a suspected aldol-condensation product
Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Organics--Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based
on nearest internal standard response factor
Analytical holding time was exceeded
Analyte is a surrogate compound
Result is less than value reported
Result is greater than value reported
Preparation or preservation holding time was exceeded
Sample results are rejected
RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.
Results are reported from a diluted aliquot of the sample
RPD or %Recovery limits do not apply.
Analyte concentration is not detected above the detection limit
Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Non Calibrated Compound
Compound cannot be extracted
One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
See case narrative
QC Samples were not spiked with this compound
Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest
internal standard response factor
See case narrative for an explanation
Analyte does not meet the Ion Abundance Ratio and should be considered an estimated concentration.
RPD/D%
Page 24 of 25
Page 90 of 98 SDG: 655098
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Parmname
Page 25 of 25
Units Anlst Date TimeQCNOMSampleRangeQualREC%
655098Workorder:
N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than
five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the
RL is used to evaluate the DUP result.
* Indicates that a Quality Control parameter was not within specifications.
For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the QC Summary.
RPD/D%
Page 91 of 98 SDG: 655098
Page 92 of 98 SDG: 655098
Page 93 of 98 SDG: 655098
Page 94 of 98 SDG: 655098
State Certification
Alabama
Alaska
Alaska Drinking Water
Arkansas
CLIA
California
Colorado
Connecticut
DoD ELAP/ ISO17025 A2LA
Florida NELAP
Foreign Soils Permit
Georgia
Georgia SDWA
Hawaii
Idaho
Illinois NELAP
Indiana
Kansas NELAP
Kentucky SDWA
Kentucky Wastewater
Louisiana Drinking Water
Louisiana NELAP
Maine
Maryland
Massachusetts
Massachusetts PFAS Approv
Michigan
Mississippi
Nebraska
Nevada
New Hampshire NELAP
New Jersey NELAP
New Mexico
New York NELAP
North Carolina
North Carolina SDWA
North Dakota
Oklahoma
Pennsylvania NELAP
Puerto Rico
S. Carolina Radiochem
Sanitation Districts of L
South Carolina Chemistry
Tennessee
Texas NELAP
Utah NELAP
Vermont
Virginia NELAP
Washington
42200
17-018
SC00012
88-00651
42D0904046
2940
SC00012
PH-0169
2567.01
E87156
P330-15-00283, P330-15-00253
SC00012
967
SC00012
SC00012
200029
C-SC-01
E-10332
KY90129
KY90129
LA024
03046 (AI33904)
2023019
270
M-SC012
Letter
9976
SC00012
NE-OS-26-13
SC000122024-05
2054
SC002
SC00012
11501
233
45709
R-158
2023-152
68-00485
SC00012
10120002
9255651
10120001
TN 02934
T104704235-23-21
SC000122023-38
VT87156
460202
C780
List of current GEL Certifications as of 16 February 2024
Page 95 of 98 SDG: 655098
LCMSMS-PFC
Technical Case Narrative
NC Dept Environmental Quality
SDG #: 655098

Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS
Analytical Method: EPA 537.1 Modified
Analytical Procedure: GL-OA-E-076 REV# 14
Analytical Batches: 2567830 and 2567829
The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification
655098001 W013024-MB
655098002 D013024-MB
655098003 W013024-02
655098004 D013024-02
655098005 W013024-19
655098006 D013024-19
655098007 W013024-32
655098008 D013024-32
655098009 W013024-33
655098010 D013024-33
655098011 W013024-21
1205648908 Method Blank (MB)
1205648909 Laboratory Control Sample (LCS)
1205648910 Laboratory Control Sample Duplicate (LCSD)

The samples in this SDG were analyzed on an "as received" basis.
Data Summary:

All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures
for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the
following exceptions.

Calibration Information

CCV Requirements
Calibration verification standards (ICV or CCV) requirements have not been met for samples in this batch in this
SDG. One or more target analytes failed acceptance criteria with a positive bias in the standards bracketing the
samples in this SDG. These target analytes were not detected in the associated environmental samples; therefore, the
non-compliance had no adverse effect on the data.

Quality Control (QC) Information

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

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.

Page 96 of 98 SDG: 655098

Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS
Analytical Method: EPA 537.1 Modified
Analytical Procedure: GL-OA-E-076 REV# 14
Analytical Batches: 2567841 and 2567839
The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification
655098012 D013024-21
655098013 W013024-21C
655098014 D013024-21C
655098015 FB013024-21
655098016 TB013024-00
1205648932 Method Blank (MB)
1205648933 Laboratory Control Sample (LCS)
1205648934 Laboratory Control Sample Duplicate (LCSD)

The samples in this SDG were analyzed on an "as received" basis.
Data Summary:

All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures
for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the
following exceptions.

Calibration Information

CCV Requirements
Calibration verification standards (ICV or CCV) requirements have not been met for samples in this batch in this
SDG. One or more target analytes failed acceptance criteria with a positive bias in the standards bracketing the
samples in this SDG. These target analytes were not detected in the associated environmental samples; therefore, the
non-compliance had no adverse effect on the data.

Quality Control (QC) Information

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

Laboratory Control Sample (LCS) Recovery
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
1205648933 (LCS)4-(Heptafluoroisopropoxy)hexafluorobutanoic acid (PFECA-G)146* (69%-139%)

Miscellaneous Information

Additional Comments
Some analytes are X qualified because the standards used to make the initial calibration curve did not meet the ISO
17025 criterion. These are the only standards available for these analytes.

Certification Statement

Where the analytical method has been performed under NELAP certification, the analysis has met all of the
Page 97 of 98 SDG: 655098
requirements of the NELAC standard unless otherwise noted in the analytical case narrative.
Page 98 of 98 SDG: 655098