651982_013124_1250 GEL DAQ Week of Jan 2-10, 2024 Nearfield & MB

January 31, 2024

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

Re: NCDAQ
Work Order: 651982

Dear Jim Bowyer:
GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the
sample(s) we received on January 17, 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 106 SDG: 651982
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: 651982 GEL Work Order: 651982
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
B The target analyte was detected in the associated blank.
J Value is estimated
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
for
Page 2 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
2554992
2554992
1506
1623
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24
01/18/24
DK2
DK2
148
1.98
3.79
3.72
3.95
3.95
1.98
3.88
3.95
3.95
3.95
3.95
1.76
1.98
1.92
1.98
3.95
1.98
1.88
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982001
Water
10-JAN-24 09:00
17-JAN-24
W010224-MB NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
53.2
0.652
1.30
1.30
1.30
1.30
0.652
1.30
1.30
1.30
1.30
1.30
0.652
0.790
0.652
0.771
0.652
0.652
0.652
1
2
U
U
U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
U
U
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.15
ND
ND
ND
ND
ND
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
Page 3 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921905
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK2
1.98
3.95
1.80
1.98
1.90
1.98
3.95
1.98
1.98
1.98
1.86
1.98
1.98
1.98
1.98
0.494
0.494
0.494
0.494
0.494
0.494
0.494
0.494
0.494
0.494
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:
651982001
W010224-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.652
1.30
0.652
0.790
0.692
0.652
1.30
0.790
0.652
0.790
0.652
0.652
0.790
0.652
0.652
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
3
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
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
Page 4 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
0.494
0.494
0.494
0.494
0.494
0.395
0.494
0.494
0.494
0.494
0.494
9.88
3.95
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:
651982001
W010224-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
3.95
1.30
U
UX
UX
UX
UX
UX
JX
U
U
UX
UX
UX
UX
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
0.300
ND
ND
ND
ND
ND
ND
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549910820EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 5 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982001
W010224-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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921632ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK22.09
4.01
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
2.09
1.98
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:
651982002
Water
10-JAN-24 09:00
17-JAN-24
D010224-MB NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.689
1.38
1.38
1.38
0.689
1.38
1.38
1.38
1.38
1.38
0.689
0.835
0.689
0.814
0.689
0.689
0.689
0.689
1.38
1U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
2.78
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 7 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
2554992
2554992
1514
1920
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24
01/18/24
DK2
DK2
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
39.2
156
0.522
0.522
0.522
0.522
0.522
0.522
0.522
0.522
0.522
0.522
1
1
1
1
1
1
1
1
1
1
1
1
1
10
10
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982002
D010224-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.689
0.835
0.730
0.689
1.38
0.835
0.689
0.835
0.689
0.689
0.835
0.689
0.689
13.8
56.1
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
2
3
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
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0209
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
0.0209
0.0209
0.0209
0.0209
Page 8 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
0.522
0.522
0.522
0.522
0.522
0.417
0.522
0.522
0.522
0.522
0.522
10.4
4.17
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:
651982002
D010224-MB NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
0.209
4.17
1.38
U
UX
UX
UX
UX
UX
UX
U
U
UX
UX
UX
UX
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
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
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
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549910820EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 9 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982002
D010224-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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921935ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK20.483
0.483
0.483
0.483
0.483
0.483
0.483
0.483
0.483
0.483
0.483
0.483
0.483
0.483
0.483
0.386
0.483
0.483
0.483
0.483
0.483
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:
651982003
Water
10-JAN-24 11:06
17-JAN-24
W010224-02 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
0.193
1UX
UX
X
UX
UX
JX
JX
UX
U
U
JX
JX
JX
X
X
JX
U
U
X
JX
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) (TAF)
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)
Perfluoroethoxypropyl carboxylic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
2.24
ND
2.76
ND
ND
0.357
0.208
ND
ND
ND
0.204
0.298
0.464
0.530
0.432
0.477
ND
ND
0.829
0.206
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
Page 11 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921640
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK2
9.66
3.86
1.93
3.71
3.63
3.86
3.86
1.93
3.79
3.86
3.86
3.86
3.86
1.72
1.93
1.87
1.93
3.86
1.93
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:
651982003
W010224-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
3.86
1.27
0.637
1.27
1.27
1.27
1.27
0.637
1.27
1.27
1.27
1.27
1.27
0.637
0.772
0.637
0.753
0.637
0.637
2
JX
UX
U
U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
U
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
4.40
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.874
ND
ND
ND
ND
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
Page 12 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921523
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L 01/19/24DK2
1.83
1.93
3.86
1.76
1.93
1.85
1.93
3.86
1.93
1.93
1.93
1.82
1.93
1.93
1.93
1.93
145
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
10
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982003
W010224-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.637
0.637
1.27
0.637
0.772
0.676
0.637
1.27
0.772
0.637
0.772
0.637
0.637
0.772
0.637
0.637
51.9 3
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
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
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
0.0193
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549910820EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 13 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982003
W010224-02 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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921649ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK22.06
3.95
3.87
4.12
4.12
2.06
4.04
4.12
4.12
4.12
4.12
1.83
2.06
2.00
2.06
4.12
2.06
1.96
2.06
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:
651982004
Water
10-JAN-24 11:06
17-JAN-24
D010224-02 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.679
1.36
1.36
1.36
1.36
0.679
1.36
1.36
1.36
1.36
1.36
0.679
0.823
0.679
0.803
0.679
0.679
0.679
0.679
1U
U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.13
ND
ND
ND
ND
ND
ND
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
Page 15 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921951
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK2
4.12
1.87
2.06
1.98
2.06
4.12
2.06
2.06
2.06
1.93
2.06
2.06
2.06
2.06
0.515
0.515
0.515
0.515
0.515
0.515
0.515
0.515
0.515
0.515
0.515
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982004
D010224-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
1.36
0.679
0.823
0.720
0.679
1.36
0.823
0.679
0.823
0.679
0.679
0.823
0.679
0.679
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
2
U
U
U
U
U
U
U
U
U
U
U
U
U
U
X
UX
X
UX
UX
UX
X
UX
U
U
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
0.619
1.22
ND
1.53
ND
ND
ND
0.550
ND
ND
ND
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
Page 16 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921532
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L 01/19/24DK2
0.515
0.515
0.515
0.515
0.412
0.515
0.515
0.515
0.515
0.515
10.3
4.12
154
1
1
1
1
1
1
1
1
1
1
1
1
10
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982004
D010224-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
4.12
1.36
55.4 3
UX
UX
UX
UX
UX
UX
U
U
UX
UX
UX
UX
U
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549910820EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 17 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982004
D010224-02 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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921657ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK21.91
3.67
3.59
3.82
3.82
1.91
3.75
3.82
3.82
3.82
3.82
1.70
1.91
1.85
1.91
3.82
1.91
1.82
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:
651982005
Water
10-JAN-24 11:27
17-JAN-24
W010224-19 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.631
1.26
1.26
1.26
1.26
0.631
1.26
1.26
1.26
1.26
1.26
0.631
0.765
0.631
0.746
0.631
0.631
0.631
0.631
1U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
2.01
ND
ND
ND
ND
ND
ND
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
Page 19 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549922006
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK2
3.82
1.74
1.91
1.84
1.91
3.82
1.91
1.91
1.91
1.80
1.91
1.91
1.91
1.91
0.478
0.478
0.478
0.478
0.478
0.478
0.478
0.478
0.478
0.478
0.478
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982005
W010224-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
1.26
0.631
0.765
0.669
0.631
1.26
0.765
0.631
0.765
0.631
0.631
0.765
0.631
0.631
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
2
U
U
U
U
U
U
U
U
U
U
U
U
U
U
UX
UX
X
UX
UX
UX
UX
UX
U
U
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
1.04
ND
1.96
ND
ND
ND
ND
ND
ND
ND
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
Page 20 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549921540
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L 01/19/24DK2
0.478
0.478
0.478
0.478
0.382
0.478
0.478
0.478
0.478
0.478
9.56
3.82
143
1
1
1
1
1
1
1
1
1
1
1
1
10
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982005
W010224-19 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
0.191
3.82
1.26
51.4 3
UX
UX
UX
JX
UX
JX
U
U
UX
UX
JX
UX
U
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
0.261
ND
0.284
ND
ND
ND
ND
4.97
ND
ND
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
0.0191
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549910820EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 21 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982005
W010224-19 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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941443ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK20.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.506
0.405
0.506
0.506
0.506
0.506
0.506
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982006
Water
10-JAN-24 11:52
17-JAN-24
W010224-32 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
1UX
UX
X
UX
UX
UX
UX
UX
U
U
X
X
X
J
X
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) (TAF)
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)
Perfluoroethoxypropyl carboxylic
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
2.42
ND
4.95
ND
ND
ND
ND
ND
ND
ND
0.858
1.64
2.74
2.74
0.285
1.35
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 23 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941248
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK2
10.1
4.05
2.02
3.88
3.80
4.05
4.05
2.02
4.05
4.05
4.05
4.05
1.80
2.02
1.96
2.02
4.05
2.02
1.92
2.02
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982006
W010224-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.05
1.34
0.668
1.34
1.34
1.34
1.34
0.668
1.34
1.34
1.34
1.34
0.668
0.809
0.668
0.789
0.668
0.668
0.668
0.668
2
XJ
JX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
EPA 537Mod PFCs by LC-MS/MS "As Received"
5.27
2.61
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 24 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941758
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L 01/19/24DK2
4.05
1.84
2.02
1.94
2.02
4.05
2.02
2.02
2.02
1.90
2.02
2.02
2.02
2.02
152
1
1
1
1
1
1
1
1
1
1
1
1
1
1
10
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982006
W010224-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
1.34
0.668
0.809
0.708
0.668
1.34
0.809
0.668
0.809
0.668
0.668
0.809
0.668
0.668
54.4 3
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
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 01/18/24 25549931254EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 25 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982006
W010224-32 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 26 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
2554994
2554994
1807
1257
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24
01/19/24
DK2
DK2
148
1.98
3.80
3.72
3.96
3.96
1.98
3.96
3.96
3.96
3.96
1.76
1.98
1.92
1.98
3.96
1.98
1.88
1.98
3.96
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:
651982007
Water
10-JAN-24 11:52
17-JAN-24
D010224-32 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
53.2
0.653
1.31
1.31
1.31
1.31
0.653
1.31
1.31
1.31
1.31
0.653
0.791
0.653
0.772
0.653
0.653
0.653
0.653
1.31
1
2
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
4.72
ND
ND
ND
ND
ND
ND
ND
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
Page 27 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941459
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK2
1.80
1.98
1.90
1.98
3.96
1.98
1.98
1.98
1.86
1.98
1.98
1.98
1.98
0.495
0.495
0.495
0.495
0.495
0.495
0.495
0.495
0.495
0.495
0.495
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982007
D010224-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.653
0.791
0.692
0.653
1.31
0.791
0.653
0.791
0.653
0.653
0.791
0.653
0.653
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
3
U
U
U
U
U
U
U
U
U
U
U
U
U
X
UX
X
UX
UX
X
X
X
U
U
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
acid (PFEESA or PES)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.603
5.08
ND
18.8
ND
ND
3.89
38.9
0.882
ND
ND
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
Page 28 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
0.495
0.495
0.495
0.495
0.396
0.495
0.495
0.495
0.495
0.495
9.89
3.96
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:
651982007
D010224-32 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
0.198
3.96
1.31
J
X
X
X
J
X
U
U
X
J
JX
JX
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.200
0.556
1.74
2.12
0.247
0.886
ND
ND
8.77
0.211
5.88
3.22
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
0.0198
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549931254EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 29 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982007
D010224-32 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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941305ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK22.06
3.95
3.86
15.4
4.11
4.11
2.06
4.11
4.11
4.11
4.11
1.83
2.06
1.99
2.06
4.11
2.06
1.95
2.06
4.11
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:
651982008
Water
10-JAN-24 12:04
17-JAN-24
W010224-33 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.678
1.36
1.36
5.53
1.36
1.36
0.678
1.36
1.36
1.36
1.36
0.678
0.822
0.678
0.802
0.678
0.678
0.678
0.678
1.36
1U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (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)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
56.8
ND
ND
ND
ND
ND
ND
ND
ND
1.16
ND
ND
ND
ND
ND
ND
ND
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
Page 31 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941514
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK2
1.87
2.06
1.97
2.06
4.11
2.06
2.06
2.06
1.93
2.06
2.06
2.06
2.06
0.514
0.514
0.514
0.514
0.514
0.514
0.514
0.514
0.514
0.514
0.514
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:
651982008
W010224-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.678
0.822
0.719
0.678
1.36
0.822
0.678
0.822
0.678
0.678
0.822
0.678
0.678
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
2
J
U
U
U
U
U
U
U
U
U
U
U
UX
J
UX
JX
UX
UX
UX
UX
UX
U
U
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
acid (PFEESA or PES)
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.981
ND
ND
ND
ND
8.00
ND
ND
ND
ND
ND
ND
ND
ND
0.355
ND
0.261
ND
ND
ND
ND
ND
ND
ND
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
Page 32 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
0.514
0.514
0.514
0.514
0.411
0.514
0.514
0.514
0.514
0.514
10.3
4.11
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:
651982008
W010224-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
0.206
4.11
1.36
U
UX
UX
UX
U
JX
U
U
UX
U
JX
UX
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
0.276
ND
ND
ND
ND
4.30
ND
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
0.0206
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549931254EF
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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982008
W010224-33 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 34 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941314ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK22.01
3.86
3.78
4.02
4.02
2.01
4.02
4.02
4.02
4.02
1.79
2.01
1.95
2.01
4.02
2.01
1.91
2.01
4.02
1.83
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982009
Water
10-JAN-24 12:04
17-JAN-24
D010224-33 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.664
1.33
1.33
1.33
1.33
0.664
1.33
1.33
1.33
1.33
0.664
0.805
0.664
0.784
0.664
0.664
0.664
0.664
1.33
0.664
1U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.34
ND
ND
ND
ND
ND
ND
ND
ND
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
0.0201
Page 35 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941529
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK2
2.01
1.93
2.01
4.02
2.01
2.01
2.01
1.89
2.01
2.01
2.01
2.01
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
0.503
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982009
D010224-33 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.805
0.704
0.664
1.33
0.805
0.664
0.805
0.664
0.664
0.805
0.664
0.664
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
0.201
2
U
U
U
U
U
U
U
U
U
U
U
U
X
UX
X
UX
UX
X
X
JX
U
U
U
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.22
2.71
ND
4.94
ND
ND
0.515
20.4
0.229
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
Page 36 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941815
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L 01/19/24DK2
0.503
0.503
0.503
0.402
0.503
0.503
0.503
0.503
0.503
10.1
4.02
151
1
1
1
1
1
1
1
1
1
1
1
10
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982009
D010224-33 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
4.02
1.33
54.1 3
UX
JX
UX
U
UX
U
U
X
U
UX
UX
U
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
0.217
ND
ND
ND
ND
ND
1.24
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 01/18/24 25549931254EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 37 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982009
D010224-33 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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
2554994
2554994
1824
1559
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24
01/19/24
DK2
DK2
151
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.404
0.504
0.504
0.504
0.504
10
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:
651982010
Water
10-JAN-24 12:40
17-JAN-24
W010224-21 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
54.3
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
1
2
U
UX
UX
X
UX
UX
UX
JX
UX
U
U
U
UX
JX
JX
U
JX
U
U
UX
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
0.806
ND
2.55
ND
ND
ND
0.284
ND
ND
ND
ND
ND
0.229
0.264
ND
0.381
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 39 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941331
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK2
0.504
10.1
4.04
2.02
3.87
3.79
4.04
4.04
2.02
4.04
4.04
4.04
4.04
1.80
2.02
1.96
2.02
4.04
2.02
1.92
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982010
W010224-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.202
4.04
1.33
0.666
1.33
1.33
1.33
1.33
0.666
1.33
1.33
1.33
1.33
0.666
0.807
0.666
0.787
0.666
0.666
0.666
3
U
JX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
4.46
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 40 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
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
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982010
W010224-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.666
1.33
0.666
0.807
0.706
0.666
1.33
0.807
0.666
0.807
0.666
0.666
0.807
0.666
0.666
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
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 01/18/24 25549931254EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 41 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982010
W010224-21 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 42 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941340ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK21.97
3.79
3.71
3.95
3.95
1.97
3.95
3.95
3.95
3.95
1.76
1.97
1.91
1.97
3.95
1.97
1.88
1.97
3.95
1.80
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982011
Water
10-JAN-24 12:40
17-JAN-24
D010224-21 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.651
1.30
1.30
1.30
1.30
0.651
1.30
1.30
1.30
1.30
0.651
0.790
0.651
0.770
0.651
0.651
0.651
0.651
1.30
0.651
1U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.909
ND
ND
ND
ND
ND
ND
ND
ND
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
Page 43 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
2554994
2554994
1832
1614
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24
01/19/24
DK2
DK2
1.97
1.90
1.97
3.95
1.97
1.97
1.97
1.86
1.97
1.97
1.97
1.97
148
0.494
0.494
0.494
0.494
0.494
0.494
0.494
0.494
0.494
0.494
0.494
1
1
1
1
1
1
1
1
1
1
1
1
10
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982011
D010224-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.790
0.691
0.651
1.30
0.790
0.651
0.790
0.651
0.651
0.790
0.651
0.651
53.1
0.197
0.197
0.197
0.197
0.197
0.197
0.197
0.197
0.197
0.197
0.197
2
3
U
U
U
U
U
U
U
U
U
U
U
U
U
X
UX
X
JX
UX
X
X
X
U
U
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
4.59
6.45
ND
30.7
0.390
ND
1.84
19.1
1.10
ND
ND
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
Page 44 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
0.494
0.494
0.494
0.494
0.395
0.494
0.494
0.494
0.494
0.494
9.87
3.95
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:
651982011
D010224-21 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.197
0.197
0.197
0.197
0.197
0.197
0.197
0.197
0.197
0.197
3.95
1.30
J
JX
X
JX
U
UX
U
U
X
J
JX
UX
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.306
0.336
0.603
0.431
ND
ND
ND
ND
4.96
0.216
4.14
ND
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
0.0197
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549931254EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 45 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982011
D010224-21 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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941348ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK22.00
3.84
3.76
15.0
4.00
4.00
2.00
4.00
4.00
4.00
4.00
1.78
2.00
1.94
2.00
4.00
2.00
1.90
2.00
4.00
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:
651982012
Water
10-JAN-24 12:40
17-JAN-24
W010224-21C NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.659
1.32
1.32
5.37
1.32
1.32
0.659
1.32
1.32
1.32
1.32
0.659
0.799
0.659
0.779
0.659
0.659
0.659
0.659
1.32
1U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (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)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0200
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 47 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941630
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK2
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
0.500
0.500
0.500
0.500
0.500
0.500
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
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982012
W010224-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.659
0.799
0.699
0.659
1.32
0.799
0.659
0.799
0.659
0.659
0.799
0.659
0.659
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
2
U
U
U
U
U
U
U
U
U
U
U
U
U
JX
UX
X
UX
UX
UX
JX
UX
U
U
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
acid (PFEESA or PES)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.205
0.935
ND
4.52
ND
ND
ND
0.239
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
0.0200
0.0200
0.0200
Page 48 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
0.500
0.500
0.500
0.500
0.400
0.500
0.500
0.500
0.500
0.500
9.99
4.00
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:
651982012
W010224-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
4.00
1.32
U
UX
JX
JX
U
JX
U
U
UX
U
JX
UX
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
0.337
0.255
ND
0.374
ND
ND
ND
ND
4.96
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
The following Prep Methods were performed:
EPA 537.1 Modified PFCs Extraction in Liquid 01/18/24 25549931254EF
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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982012
W010224-21C 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 50 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
2554994
2554994
1841
1357
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24
01/19/24
DK2
DK2
153
2.04
3.91
3.83
4.07
4.07
2.04
4.07
4.07
4.07
4.07
1.81
2.04
1.98
2.04
4.07
2.04
1.94
2.04
4.07
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:
651982013
Water
10-JAN-24 12:40
17-JAN-24
D010224-21C NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
54.8
0.672
1.34
1.34
1.34
1.34
0.672
1.34
1.34
1.34
1.34
0.672
0.815
0.672
0.795
0.672
0.672
0.672
0.672
1.34
1
2
U
U
U
U
U
U
U
U
U
U
U
U
J
U
U
U
U
U
U
U
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.31
ND
ND
ND
ND
ND
ND
ND
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
0.0204
Page 51 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941645
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK2
1.85
2.04
1.96
2.04
4.07
2.04
2.04
2.04
1.92
2.04
2.04
2.04
2.04
0.509
0.509
0.509
0.509
0.509
0.509
0.509
0.509
0.509
0.509
0.509
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:
651982013
D010224-21C NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.672
0.815
0.713
0.672
1.34
0.815
0.672
0.815
0.672
0.672
0.815
0.672
0.672
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
0.204
3
U
U
U
U
U
U
U
U
U
U
U
U
U
X
UX
X
JX
UX
X
X
X
U
U
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
acid (PFEESA or PES)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
3.52
6.99
ND
19.7
0.287
ND
1.55
15.3
1.09
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
Page 52 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
0.509
0.509
0.509
0.509
0.407
0.509
0.509
0.509
0.509
0.509
10.2
4.07
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:
651982013
D010224-21C 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
4.07
1.34
J
JX
JX
JX
U
UX
U
U
X
U
UX
UX
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
EPA 537Mod PFCs by LC-MS/MS "As Received"
0.328
0.315
0.435
0.355
ND
ND
ND
ND
4.86
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 01/18/24 25549931254EF
Method Description Analyst Date Time Prep Batch
The following Analytical Methods were performed:
1
2
3
Method Description
EPA 537.1 Modified
EPA 537.1 Modified
EPA 537.1 Modified
Analyst Comments
Notes:
Page 53 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982013
D010224-21C 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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941405ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK22.02
3.87
3.79
15.1
4.03
4.03
2.02
4.03
4.03
4.03
4.03
1.79
2.02
1.95
2.02
4.03
2.02
1.91
2.02
4.03
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982014
Water
10-JAN-24 11:06
17-JAN-24
FB010224-02 NCDQ00122Project:
NCDQ001Client ID:
Client
Sample ID:
Receive Date:
North Carolina Department of Environment
Client Sample ID:
Matrix:
Collect Date:
Collector:
0.665
1.33
1.33
5.42
1.33
1.33
0.665
1.33
1.33
1.33
1.33
0.665
0.806
0.665
0.786
0.665
0.665
0.665
0.665
1.33
1U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (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)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 55 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25549941700
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/19/24DK2
1.83
2.02
1.93
2.02
4.03
2.02
2.02
2.02
1.89
2.02
2.02
2.02
2.02
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982014
FB010224-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.665
0.806
0.705
0.665
1.33
0.806
0.665
0.806
0.665
0.665
0.806
0.665
0.665
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
2
U
U
U
U
U
U
U
U
U
U
U
U
U
UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
acid (PFEESA or PES)
EPA 537Mod PFCs by LC-MS/MS "As Received"
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 56 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
0.504
0.504
0.504
0.504
0.403
0.504
0.504
0.504
0.504
0.504
10.1
4.03
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:
651982014
FB010224-02 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
0.202
4.03
1.33
U
UX
UX
UX
U
XU
U
U
UX
U
UX
UX
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
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
0.0202
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 01/18/24 25549931254EF
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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982014
FB010224-02 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 58 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25550041618ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK20.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.504
0.403
0.504
0.504
0.504
0.504
0.504
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982015
Water
16-JAN-24 08:30
17-JAN-24
TB011624-01 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
1UX
U
UX
UX
UX
UX
UX
UX
UX
U
U
UX
UX
UX
UX
UX
UX
U
U
UX
UX
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-heptafluoropropoxy)-
propanoic acid (Gen-X)
4-
(Heptafluoroisopropoxy)hexafluorob
utanoic acid (PFECA-G)
Nafion Byproduct 4 (PFESA BP4)
Nafion Byproduct 5 (PFESA BP5)
Nafion Byproduct 6 (PFESA BP6)
Hydro-EVE
Nafion Byproduct 1 (PFESA BP1)
Nafion Byproduct 2 (PFESA BP2)
Nonafluoro-3,6-dioxaheptanoic
acid (NFDHA or PFECA B)
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluoroethoxypropyl carboxylic
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
0.0202
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 59 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
LCMSMS PFCs
25550041448
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
01/18/24DK2
10.1
4.03
2.02
3.87
3.79
15.1
4.03
4.03
2.02
3.96
4.03
4.03
4.03
4.03
1.79
2.02
1.96
2.02
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:
651982015
TB011624-01 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
4.03
1.33
0.666
1.33
1.33
5.43
1.33
1.33
0.666
1.33
1.33
1.33
1.33
1.33
0.666
0.807
0.666
0.787
0.666
2
UX
UX
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
acid (PEPA)
Perfluoropropanoic acid (PFPrA)
R-EVE
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (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)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic 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
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
0.0202
Page 60 of 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 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
4.03
1.84
2.02
1.94
2.02
4.03
2.02
2.02
2.02
1.90
2.02
2.02
2.02
2.02
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:
651982015
TB011624-01 NCDQ00122Project:
NCDQ001Client ID:Sample ID:
North Carolina Department of Environment
Client Sample ID:
0.666
0.666
0.666
1.33
0.666
0.807
0.706
0.666
1.33
0.807
0.666
0.807
0.666
0.666
0.807
0.666
0.666
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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 01/18/24 25550030825RR4
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 106 SDG: 651982
Certificate of Analysis
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Report Date: January 31, 2024
Parameter Result UnitsQualifier Analyst Date TimeDF Batch MethodRLDLPF
Jim BowyerContact:
NCDENRCompany :
4403 Reedy Creek Road
Raleigh, North Carolina 27607
Address :
NCDAQProject:
651982015
TB011624-01 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 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
Parmname
Jim BowyerContact:
NCDENR
4403 Reedy Creek Road
Raleigh, North Carolina
January 31, 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 01/18/24 16:49
01/18/24 15:05
01/18/24 16:49
01/18/24 15:05
01/18/24 16:49
01/18/24 15:05
01/18/24 16:49
01/18/24 15:05
QC
16.1
18.5
20.4
23.7
20.3
18.5
17.2
20.1
18.5
20.4
18.9
19.1
22.3
NOM Sample Range
(57%-151%)
(59%-138%)
(57%-147%)
(54%-148%)
(61%-150%)
(62%-140%)
(58%-133%)
(56%-145%)
(69%-147%)
(69%-139%)
(68%-137%)
(66%-146%)
(40%-152%)
Qual
X
X
X
QC1205626092
REC%
81
98
106
127
107
93
86
101
93
102
102
96
111
20.0
18.8
19.2
18.7
19.0
20.0
20.0
20.0
20.0
20.0
18.6
20.0
20.0
LCS
651982Workorder:
North Carolina Department of Environment
RPD/D%
Page 1 of 36
Page 63 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
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) (TAF)
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)
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 01/18/24 15:05
01/18/24 16:49
QC
19.3
20.8
20.0
16.2
19.4
10.8
13.4
18.4
17.8
18.1
18.3
19.6
19.0
18.6
19.2
NOM Sample Range
(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%)
(62%-142%)
Qual
X
X
X
X
X
X
X
X
X
REC%
97
104
100
81
97
54
67
92
89
90
92
98
95
93
96
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
651982Workorder:
RPD/D%
Page 2 of 36
Page 64 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic 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 01/18/24 16:49
01/18/24 15:05
01/18/24 16:49
01/18/24 15:05
QC
19.8
18.7
19.3
17.3
19.0
17.8
20.9
15.8
19.4
17.2
18.8
19.4
19.0
18.2
18.9
NOM Sample Range
(56%-144%)
(57%-140%)
(64%-147%)
(70%-139%)
(77%-146%)
(62%-133%)
(68%-140%)
(55%-135%)
(69%-139%)
(34%-140%)
(62%-141%)
(67%-141%)
(71%-138%)
(59%-160%)
(63%-142%)
Qual
X
X
X
X
REC%
99
94
97
98
95
92
105
82
97
86
94
102
95
91
104
20.0
20.0
20.0
17.7
20.0
19.3
20.0
19.3
20.0
20.0
20.0
19.0
20.0
20.0
18.2
651982Workorder:
RPD/D%
Page 3 of 36
Page 65 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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
DK2 01/18/24 15:05
01/18/24 16:49
01/18/24 15:05
01/18/24 16:49
01/18/24 17:04
QC
18.3
17.9
19.2
6.80
19.9
18.2
18.1
18.4
19.8
18.5
19.8
21.0
16.7
15.6
17.1
NOM Sample Range
(71%-139%)
(67%-134%)
(71%-136%)
(8%-124%)
(68%-141%)
(68%-137%)
(70%-138%)
(63%-141%)
(71%-139%)
(54%-156%)
(70%-138%)
(61%-141%)
(68%-139%)
(25%-144%)
(0%-28%)
Qual
X
X
X
QC1205626093
6
REC%
92
93
96
34
100
91
91
98
99
93
99
105
84
78
83
20.0
19.2
20.0
20.0
20.0
20.0
20.0
18.8
20.0
20.0
20.0
20.0
20.0
20.0
20.7
LCSD
651982Workorder:
RPD/D%
Page 4 of 36
Page 66 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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)
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 01/18/24 15:14
01/18/24 17:04
01/18/24 15:14
01/18/24 17:04
01/18/24 15:14
01/18/24 17:04
01/18/24 15:14
QC
22.5
22.4
22.1
16.6
20.0
21.7
21.2
19.7
22.2
23.3
20.4
23.7
22.9
20.7
23.2
NOM Sample Range
(0%-27%)
(0%-35%)
(0%-34%)
(0%-36%)
(0%-27%)
(0%-28%)
(0%-32%)
(0%-25%)
(0%-25%)
(0%-26%)
(0%-26%)
(0%-31%)
(0%-31%)
(0%-34%)
(0%-30%)
Qual
X
X
19
9
7
20
8
23
5
6
9
21
7
6
17
0
15
REC%
115
113
114
84
97
105
102
95
107
121
99
114
110
100
112
19.5
19.9
19.4
19.7
20.7
20.7
20.7
20.7
20.7
19.3
20.7
20.7
20.7
20.7
20.7
651982Workorder:
RPD/D%
Page 5 of 36
Page 67 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
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) (TAF)
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)
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 01/18/24 17:04
QC
16.4
18.7
14.2
15.9
20.2
19.4
19.7
19.1
20.2
20.4
19.9
20.4
19.6
20.4
20.4
NOM Sample Range
(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%)
(0%-23%)
Qual
X
X
X
X
X
X
X
X
X
X
X
1
3
27
17
9
8
9
4
3
7
7
6
1
9
6
REC%
79
90
68
77
97
93
95
92
97
98
96
99
95
98
99
20.7
20.7
20.7
20.7
20.7
20.7
20.7
20.7
20.7
20.7
20.7
20.7
20.7
20.7
20.7
651982Workorder:
RPD/D%
Page 6 of 36
Page 68 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic 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 01/18/24 15:14
01/18/24 17:04
01/18/24 15:14
QC
19.7
21.1
20.4
21.4
20.5
21.3
18.7
20.1
23.6
20.4
22.8
22.5
21.0
22.5
21.0
NOM Sample Range
(0%-31%)
(0%-21%)
(0%-25%)
(0%-26%)
(0%-30%)
(0%-24%)
(0%-28%)
(0%-24%)
(0%-33%)
(0%-26%)
(0%-21%)
(0%-33%)
(0%-24%)
(0%-26%)
(0%-25%)
Qual
X
X
13
10
14
2
26
9
8
6
19
7
23
18
14
23
9
REC%
107
102
102
103
102
103
90
97
120
99
110
119
102
113
101
18.3
20.7
20.0
20.7
20.1
20.7
20.7
20.7
19.7
20.7
20.7
18.9
20.7
19.9
20.7
651982Workorder:
*
RPD/D%
Page 7 of 36
Page 69 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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 (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 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
DK2 01/18/24 15:14
01/18/24 17:04
01/18/24 15:14
01/18/24 17:04
01/18/24 16:34
01/18/24 14:57
QC
10.7
24.2
22.6
21.0
24.1
23.2
21.0
23.0
24.1
20.9
18.3
ND
ND
ND
ND
NOM Sample Range
(0%-35%)
(0%-25%)
(0%-22%)
(0%-24%)
(0%-37%)
(0%-23%)
(0%-24%)
(0%-23%)
(0%-27%)
(0%-27%)
(0%-30%)
Qual
X
X
UX
U
U
U
QC1205626091
45
19
22
15
27
15
12
15
14
23
16
REC%
52
117
109
101
124
112
101
111
117
101
88
20.7
20.7
20.7
20.7
19.5
20.7
20.7
20.7
20.7
20.7
20.7
MB
651982Workorder:
*
RPD/D%
Page 8 of 36
Page 70 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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)
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 01/18/24 14:57
01/18/24 16:34
01/18/24 14:57
01/18/24 16:34
01/18/24 14:57
01/18/24 16:34
01/18/24 14:57
01/18/24 16:34
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
U
U
U
U
U
UX
U
UX
U
U
U
U
UX
UX
UX
REC%
651982Workorder:
RPD/D%
Page 9 of 36
Page 71 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
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) (TAF)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
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 01/18/24 16:34
01/18/24 14:57
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
UX
UX
U
U
UX
UX
UX
UX
U
UX
UX
U
U
U
U
REC%
651982Workorder:
RPD/D%
Page 10 of 36
Page 72 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992Batch
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/18/24 14:57
01/18/24 16:34
01/18/24 14:57
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
U
U
U
UX
UX
U
U
U
U
U
U
U
U
U
U
REC%
651982Workorder:
RPD/D%
Page 11 of 36
Page 73 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554992
2554994
Batch
Batch
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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 (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2
DK2
01/18/24 14:57
01/18/24 16:34
01/18/24 14:57
01/18/24 16:34
01/19/24 13:43
01/19/24 12:13
01/19/24 13:43
QC
ND
ND
ND
ND
ND
ND
ND
ND
20.5
21.4
19.9
18.5
18.2
20.0
NOM Sample Range
(57%-151%)
(59%-138%)
(57%-147%)
(54%-148%)
(61%-150%)
(62%-140%)
Qual
U
U
U
UX
U
U
U
UX
X
QC1205626095
REC%
100
110
101
96
93
97
20.5
19.4
19.7
19.2
19.5
20.5
LCS
651982Workorder:
RPD/D%
Page 12 of 36
Page 74 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
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)
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 01/19/24 12:13
01/19/24 13:43
01/19/24 12:13
01/19/24 13:43
QC
19.0
19.4
19.5
23.0
19.9
20.2
21.8
22.4
21.7
17.3
18.6
12.8
15.8
21.4
19.3
NOM Sample Range
(58%-133%)
(56%-145%)
(69%-147%)
(69%-139%)
(66%-146%)
(40%-152%)
(60%-139%)
(41%-150%)
(64%-144%)
(40%-131%)
(60%-139%)
(21%-138%)
(18%-146%)
(64%-140%)
(55%-144%)
Qual
X
X
X
X
X
X
X
REC%
92
94
95
112
97
98
106
109
105
84
91
62
77
104
94
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
651982Workorder:
RPD/D%
Page 13 of 36
Page 75 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
Perfluoro(2-ethoxyethane)sulfonic
acid (PFEESA or PES)
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
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 01/19/24 13:43
01/19/24 12:13
QC
20.0
18.6
19.9
19.4
20.7
20.2
20.8
20.2
20.6
19.2
20.1
19.6
18.8
17.0
21.8
NOM Sample Range
(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%)
(55%-135%)
(69%-139%)
Qual
X
X
X
X
REC%
97
91
97
95
101
98
101
98
100
105
98
99
91
85
106
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
20.5
18.2
20.5
19.8
20.5
19.9
20.5
651982Workorder:
RPD/D%
Page 14 of 36
Page 76 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
Perfluoroethoxypropionic acid
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/19/24 13:43
01/19/24 12:13
QC
19.6
20.3
22.2
19.4
20.3
18.3
21.3
19.8
20.6
6.01
22.6
23.0
21.4
19.1
22.6
NOM Sample Range
(34%-140%)
(62%-141%)
(67%-141%)
(71%-138%)
(59%-160%)
(63%-142%)
(71%-139%)
(67%-134%)
(71%-136%)
(8%-124%)
(68%-141%)
(68%-137%)
(70%-138%)
(63%-141%)
(71%-139%)
Qual
X
REC%
96
99
114
95
99
98
104
101
100
29
110
112
104
99
110
20.5
20.5
19.5
20.5
20.5
18.7
20.5
19.7
20.5
20.5
20.5
20.5
20.5
19.3
20.5
651982Workorder:
RPD/D%
Page 15 of 36
Page 77 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
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 (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
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 01/19/24 13:43
01/19/24 12:13
01/19/24 13:43
01/19/24 13:58
01/19/24 12:22
01/19/24 13:58
01/19/24 12:22
01/19/24 13:58
QC
20.2
21.5
25.3
21.6
18.8
16.1
20.6
25.9
19.2
18.9
18.2
18.6
18.6
20.5
20.6
NOM Sample Range
(54%-156%)
(70%-138%)
(61%-141%)
(68%-139%)
(25%-144%)
(0%-28%)
(0%-27%)
(0%-35%)
(0%-34%)
(0%-36%)
(0%-27%)
(0%-28%)
(0%-32%)
(0%-25%)
(0%-25%)
Qual
X
X
X
X
QC1205626096
24
4
27
3
3
9
2
4
5
11
REC%
98
105
123
105
92
82
110
137
104
100
92
94
94
103
104
20.5
20.5
20.5
20.5
20.5
19.8
18.6
19.0
18.5
18.8
19.8
19.8
19.8
19.8
19.8
LCSD
651982Workorder:
RPD/D%
Page 16 of 36
Page 78 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
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) (TAF)
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 01/19/24 13:58
01/19/24 12:22
01/19/24 13:58
QC
19.0
19.6
19.2
21.5
21.0
16.9
18.3
10.7
14.0
17.3
17.7
18.0
17.7
19.0
18.3
NOM Sample Range
(0%-26%)
(0%-31%)
(0%-31%)
(0%-34%)
(0%-30%)
(0%-28%)
(0%-23%)
(0%-41%)
(0%-35%)
(0%-26%)
(0%-30%)
(0%-31%)
(0%-34%)
(0%-33%)
(0%-30%)
Qual
X
X
X
X
X
X
X
X
5
3
13
4
3
2
2
18
12
21
9
11
5
5
6
REC%
96
99
97
109
106
86
93
54
71
88
89
91
90
96
92
19.8
19.8
19.8
19.8
19.8
19.8
19.8
19.8
19.8
19.8
19.8
19.8
19.8
19.8
19.8
651982Workorder:
RPD/D%
Page 17 of 36
Page 79 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
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 01/19/24 13:58
01/19/24 12:22
01/19/24 13:58
01/19/24 12:22
QC
19.2
18.1
19.4
17.7
19.5
16.8
19.8
19.5
19.0
17.5
18.3
17.0
18.1
20.3
19.2
NOM Sample Range
(0%-24%)
(0%-25%)
(0%-25%)
(0%-28%)
(0%-23%)
(0%-31%)
(0%-21%)
(0%-25%)
(0%-26%)
(0%-30%)
(0%-24%)
(0%-28%)
(0%-24%)
(0%-33%)
(0%-26%)
Qual
X
X
X
8
11
7
13
6
13
2
1
1
3
17
14
11
9
1
REC%
97
91
98
89
99
96
100
102
96
91
92
86
92
108
97
19.8
19.8
19.8
19.8
19.8
17.5
19.8
19.1
19.8
19.1
19.8
19.8
19.8
18.8
19.8
651982Workorder:
RPD/D%
Page 18 of 36
Page 80 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
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 01/19/24 12:22
01/19/24 13:58
01/19/24 12:22
QC
20.1
19.8
19.2
19.3
21.7
9.31
21.7
18.1
19.4
19.5
19.5
20.1
20.2
21.9
19.7
NOM Sample Range
(0%-21%)
(0%-33%)
(0%-24%)
(0%-26%)
(0%-25%)
(0%-35%)
(0%-25%)
(0%-22%)
(0%-24%)
(0%-37%)
(0%-23%)
(0%-24%)
(0%-23%)
(0%-27%)
(0%-27%)
Qual
X
1
8
10
3
5
43
4
24
10
2
15
0
6
14
9
REC%
101
110
97
102
109
47
110
91
98
105
99
102
102
111
99
19.8
18.0
19.8
19.0
19.8
19.8
19.8
19.8
19.8
18.6
19.8
19.8
19.8
19.8
19.8
651982Workorder:
*
*
RPD/D%
Page 19 of 36
Page 81 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
R-EVE
1,1,2,2-Tetrafluoro-2-(1,2,2,2-
tetrafluoroethoxy)ethane sulfonic
acid (NVHOS)
11-Chloroeicosafluoro-3-
oxaundecane-1-sulfonic acid (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/19/24 13:58
01/19/24 13:28
01/19/24 12:05
01/19/24 13:28
01/19/24 12:05
01/19/24 13:28
01/19/24 12:05
QC
18.3
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample Range
(0%-30%)
Qual
X
UX
U
U
U
U
U
U
U
U
UX
UX
U
U
QC1205626094
3
REC%
9219.8
MB
651982Workorder:
RPD/D%
Page 20 of 36
Page 82 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
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) (TAF)
Perfluoro(3,5,7,9-tetraoxadecanoic)
acid (PFO4DA)
Perfluoro(3,5,7-trioxaoctanoic)
acid (PFO3OA)
Perfluoro(3,5-dioxahexanoic) acid
(PFO2HxA)
Perfluoro(4-methoxybutanoic) acid
(PFMOBA)
Perfluoro-2-
(perfluoromethoxy)propanoic acid
(PMPA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/19/24 12:05
01/19/24 13:28
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
U
U
UX
UX
UX
UX
UX
U
U
U
UX
UX
UX
U
U
REC%
651982Workorder:
RPD/D%
Page 21 of 36
Page 83 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994Batch
Perfluoro-2-methoxyacetic acid
(PFMOAA)
Perfluoro-3-methoxypropanoic
acid (PFMOPrA)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
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 01/19/24 13:28
01/19/24 12:05
01/19/24 13:28
01/19/24 12:05
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
UX
U
U
U
U
U
U
U
UX
U
U
U
U
U
U
REC%
651982Workorder:
RPD/D%
Page 22 of 36
Page 84 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2554994
2555004
Batch
Batch
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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 (11-
Cl-PF3OUdS)
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
DK2
01/19/24 12:05
01/19/24 13:28
01/19/24 12:05
01/19/24 13:28
01/18/24 13:32
01/18/24 13:13
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
18.7
18.6
NOM Sample Range
(57%-151%)
(59%-138%)
Qual
U
U
U
U
U
U
U
U
UX
U
U
U
UX
X
QC1205626108
REC%
92
97
20.3
19.2
LCS
651982Workorder:
RPD/D%
Page 23 of 36
Page 85 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
Hydro-EVE
N-ethylperfluoro-1-
octanesulfonamide (N-EtFOSA)
N-ethylperfluoro-1-
octanesulfonamidoacetic acid (N-
EtFOSAA)
N-methylperfluoro-1-
octanesulfonamide (N-MeFOSA)
N-methylperfluoro-1-
octanesulfonamidoacetic acid (N-
MeFOSAA)
Nafion Byproduct 1 (PFESA BP1)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/18/24 13:13
01/18/24 13:32
01/18/24 13:13
01/18/24 13:32
01/18/24 13:13
01/18/24 13:32
01/18/24 13:13
01/18/24 13:32
QC
21.3
19.7
18.4
18.6
20.5
20.0
19.5
21.0
20.2
20.0
20.8
20.9
22.0
22.2
15.8
NOM Sample Range
(57%-147%)
(54%-148%)
(61%-150%)
(62%-140%)
(58%-133%)
(56%-145%)
(69%-147%)
(69%-139%)
(68%-137%)
(66%-146%)
(40%-152%)
(60%-139%)
(41%-150%)
(64%-144%)
(40%-131%)
Qual
X
X
X
REC%
109
104
95
91
101
98
96
103
106
98
102
103
108
109
78
19.5
19.0
19.3
20.3
20.3
20.3
20.3
20.3
19.0
20.3
20.3
20.3
20.3
20.3
20.3
651982Workorder:
RPD/D%
Page 24 of 36
Page 86 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
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) (TAF)
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)
Perfluorobutane sulfonic acid
(PFBS)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/18/24 13:32
01/18/24 13:13
QC
19.5
16.7
17.0
19.7
18.3
19.7
18.9
20.2
20.1
20.9
19.8
20.8
20.2
21.2
18.2
NOM Sample Range
(60%-139%)
(21%-138%)
(18%-146%)
(64%-140%)
(55%-144%)
(60%-145%)
(57%-143%)
(63%-147%)
(66%-143%)
(64%-140%)
(62%-142%)
(56%-144%)
(57%-140%)
(64%-147%)
(70%-139%)
Qual
X
X
X
X
X
X
X
X
X
X
REC%
96
82
84
97
90
97
93
99
99
103
97
102
99
104
101
20.3
20.3
20.3
20.3
20.3
20.3
20.3
20.3
20.3
20.3
20.3
20.3
20.3
20.3
18.0
651982Workorder:
RPD/D%
Page 25 of 36
Page 87 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/18/24 13:13
01/18/24 13:32
01/18/24 13:13
QC
19.1
17.8
19.1
12.8
20.2
17.2
19.3
21.8
19.9
21.9
18.7
19.7
19.4
19.0
7.20
NOM Sample Range
(77%-146%)
(62%-133%)
(68%-140%)
(55%-135%)
(69%-139%)
(34%-140%)
(62%-141%)
(67%-141%)
(71%-138%)
(59%-160%)
(63%-142%)
(71%-139%)
(67%-134%)
(71%-136%)
(8%-124%)
Qual
X
X
REC%
94
91
94
65
99
84
95
113
98
108
101
97
100
94
35
20.3
19.6
20.3
19.7
20.3
20.3
20.3
19.3
20.3
20.3
18.6
20.3
19.5
20.3
20.3
651982Workorder:
RPD/D%
Page 26 of 36
Page 88 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic 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 (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 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
DK2 01/18/24 13:13
01/18/24 13:32
01/18/24 13:13
01/18/24 13:32
01/18/24 13:47
01/18/24 13:22
QC
20.2
19.5
19.3
20.5
21.2
19.8
19.4
21.5
18.1
19.2
20.2
19.3
23.1
17.1
20.2
NOM Sample Range
(68%-141%)
(68%-137%)
(70%-138%)
(63%-141%)
(71%-139%)
(54%-156%)
(70%-138%)
(61%-141%)
(68%-139%)
(25%-144%)
(0%-28%)
(0%-27%)
(0%-35%)
(0%-34%)
(0%-36%)
Qual
B
X
X
X
QC1205626109
8
4
8
14
9
REC%
99
96
95
107
104
97
95
106
89
94
95
97
114
87
100
20.3
20.3
20.3
19.1
20.3
20.3
20.3
20.3
20.3
20.3
21.2
19.9
20.3
19.8
20.1
LCSD
651982Workorder:
RPD/D%
Page 27 of 36
Page 89 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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
DK2 01/18/24 13:47
01/18/24 13:22
01/18/24 13:47
01/18/24 13:22
01/18/24 13:47
01/18/24 13:22
01/18/24 13:47
QC
20.5
19.4
23.0
20.8
22.8
21.0
21.1
23.3
19.9
21.6
20.9
17.2
20.5
16.9
17.8
NOM Sample Range
(0%-27%)
(0%-28%)
(0%-32%)
(0%-25%)
(0%-25%)
(0%-26%)
(0%-26%)
(0%-31%)
(0%-31%)
(0%-34%)
(0%-30%)
(0%-28%)
(0%-23%)
(0%-41%)
(0%-35%)
Qual
X
X
X
X
X
X
10
5
14
7
8
4
5
11
5
2
6
8
5
1
5
REC%
97
92
109
98
108
106
100
110
94
102
99
81
97
80
84
21.2
21.2
21.2
21.2
21.2
19.7
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
651982Workorder:
RPD/D%
Page 28 of 36
Page 90 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
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) (TAF)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic 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 01/18/24 13:47
01/18/24 13:22
QC
20.6
19.7
20.5
19.9
20.9
21.5
21.5
21.9
22.7
20.5
21.2
17.6
21.0
18.9
20.6
NOM Sample Range
(0%-26%)
(0%-30%)
(0%-31%)
(0%-34%)
(0%-33%)
(0%-30%)
(0%-24%)
(0%-25%)
(0%-25%)
(0%-28%)
(0%-23%)
(0%-31%)
(0%-21%)
(0%-25%)
(0%-26%)
Qual
X
X
X
X
X
X
X
5
8
4
5
3
7
3
10
8
2
0
3
9
6
8
REC%
98
93
97
94
99
102
102
103
107
97
100
94
99
93
98
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
18.7
21.2
20.4
21.2
651982Workorder:
RPD/D%
Page 29 of 36
Page 91 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
Perfluorododecane sulfonic acid
(PFDoS)
Perfluorododecanoic acid (PFDOA)
Perfluoroethoxypropionic acid
(EVE)
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
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 01/18/24 13:22
01/18/24 13:47
01/18/24 13:22
QC
14.2
20.7
17.5
20.2
20.8
20.1
21.5
18.8
23.8
21.0
18.8
8.84
22.8
22.0
20.8
NOM Sample Range
(0%-30%)
(0%-24%)
(0%-28%)
(0%-24%)
(0%-33%)
(0%-26%)
(0%-21%)
(0%-33%)
(0%-24%)
(0%-26%)
(0%-25%)
(0%-35%)
(0%-25%)
(0%-22%)
(0%-24%)
Qual
X
X
B
10
3
2
5
5
1
2
1
19
8
1
20
12
12
7
REC%
69
98
83
95
104
95
101
98
112
104
89
42
108
104
98
20.5
21.2
21.2
21.2
20.1
21.2
21.2
19.3
21.2
20.3
21.2
21.2
21.2
21.2
21.2
651982Workorder:
RPD/D%
Page 30 of 36
Page 92 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
Perfluoropentane sulfonic 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 (11-
Cl-PF3OUdS)
1H, 1H, 2H, 2H-Perfluorodecane
sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-Perfluorohexane
sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-Perfluorooctane
sulfonic acid (6:2 FTS)
2,3,3,3-Tetrafluoro-2-
(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic
acid (Gen-X)
2-(N-ethylperfluoro-1-
octanesulfonamido)-ethanol (N-
EtFOSE)
2-(N-methylperfluoro-1-
octanesulfonamido)-ethanol (N-
MeFOSE)
Parmname Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/18/24 13:22
01/18/24 13:47
01/18/24 13:22
01/18/24 13:47
01/18/24 13:16
01/18/24 13:05
01/18/24 13:16
01/18/24 13:05
QC
19.2
21.3
20.3
22.2
24.8
21.1
19.3
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample Range
(0%-37%)
(0%-23%)
(0%-24%)
(0%-23%)
(0%-27%)
(0%-27%)
(0%-30%)
Qual
X
X
UX
U
U
U
U
U
U
U
QC1205626107
6
0
3
14
14
15
1
REC%
96
101
96
105
117
100
91
19.9
21.2
21.2
21.2
21.2
21.2
21.2
MB
651982Workorder:
RPD/D%
Page 31 of 36
Page 93 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
4,8-Dioxa-3H-perfluorononanoic
acid (DONA)
4-
(Heptafluoroisopropoxy)hexafluoro
butanoic acid (PFECA-G)
9-Chlorohexadecafluoro-3-
oxanonane-1-sulfonic acid (9-Cl-
PF3ONS)
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
DK2 01/18/24 13:05
01/18/24 13:16
01/18/24 13:05
01/18/24 13:16
01/18/24 13:05
01/18/24 13:16
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
U
UX
U
UX
U
U
U
U
UX
UX
UX
UX
UX
U
U
REC%
651982Workorder:
RPD/D%
Page 32 of 36
Page 94 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
Perfluoro(3,5,7,9,11-
pentaoxadodecanoic) acid
(PFO5DA) (TAF)
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)
Perfluorobutane sulfonic acid
(PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecane sulfonic acid
(PFDS)
Perfluorodecanoic acid (PFDA)
Perfluorododecane sulfonic 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 01/18/24 13:16
01/18/24 13:05
01/18/24 13:16
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOM Sample RangeQual
UX
UX
UX
UX
U
UX
UX
U
U
U
U
U
U
U
UX
REC%
651982Workorder:
RPD/D%
Page 33 of 36
Page 95 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
Perfluoroethoxypropyl carboxylic
acid (PEPA)
Perfluoroheptane sulfonic acid
(PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexadecanoic acid
(PFHxDA)
Perfluorohexane sulfonic acid
(PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononane sulfonic acid
(PFNS)
Perfluorononanoic acid (PFNA)
Perfluorooctadecanoic acid
(PFODA)
Perfluorooctane sulfonic acid
(PFOS)
Perfluorooctanesulfonamide
(PFOSA)
Perfluorooctanoic acid (PFOA)
Perfluoropentane sulfonic acid
(PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluoropropanoic acid (PFPrA)
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 01/18/24 13:16
01/18/24 13:05
01/18/24 13:16
QC
ND
ND
ND
ND
ND
ND
ND
ND
ND
3.35
ND
ND
ND
ND
ND
NOM Sample RangeQual
UX
U
U
U
U
U
U
U
U
U
U
U
U
UX
REC%
651982Workorder:
RPD/D%
Page 34 of 36
Page 96 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Perfluorinated Compounds
2555004Batch
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
R-EVE
Parmname Units
ng/L
ng/L
ng/L
ng/L
Anlst Date Time
DK2 01/18/24 13:05
01/18/24 13:16
QC
ND
ND
ND
ND
NOM Sample RangeQual
U
U
U
UX
The Qualifiers in this report are defined as follows:
REC%
651982Workorder:
U
J
P
C
B
E
A
X
N
H
**
<
>
h
R
^
D
N/A
ND
NJ
JNX
UJ
Q
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.
RPD/D%
Notes:
Page 35 of 36
Page 97 of 106 SDG: 651982
QC Summary
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Parmname
Page 36 of 36
Units Anlst Date TimeQCNOMSampleRangeQualREC%
651982Workorder:
N1
Y
N
J
I
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.
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 98 of 106 SDG: 651982
Page 99 of 106 SDG: 651982
Page 100 of 106 SDG: 651982
Page 101 of 106 SDG: 651982
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 31 January 2024
Page 102 of 106 SDG: 651982
LCMSMS-PFC
Technical Case Narrative
NC Dept Environmental Quality
SDG #: 651982

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: 2554992 and 2554991
The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification
651982001 W010224-MB
651982002 D010224-MB
651982003 W010224-02
651982004 D010224-02
651982005 W010224-19
1205626091 Method Blank (MB)
1205626092 Laboratory Control Sample (LCS)
1205626093 Laboratory Control Sample Duplicate (LCSD)

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

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

Quality Control (QC) Information

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

LCS/LCSD Relative Percent Difference (RPD) Statement
Not all of the relative percent differences (RPDs) between the LCS and the LCSD were within the acceptance limits
for this SDG. However, the LCS and LCSD recoveries were all acceptable.
Sample Analyte Value
1205626092 (LCS) and 1205626093 (LCSD)Perfluorohexadecanoic acid (PFHxDA)RPD 23* (0%-21%)
Perfluorooctadecanoic acid (PFODA)RPD 45* (0%-35%)

Technical Information

Sample Dilutions
The following samples and/or QC were diluted due to the Internal Standard Recovery not within the limits in the
undiluted analysis. 651982001 (W010224-MB), 651982002 (D010224-MB), 651982003 (W010224-02), 651982004
(D010224-02) and 651982005 (W010224-19).
Analyte
651982
001 002 003 004 005
Page 103 of 106 SDG: 651982
1H, 1H, 2H, 2H-Perfluorohexane sulfonic acid (4:2 FTS)1X 10X 1X 1X 1X
1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid (6:2 FTS)10X 10X 10X 10X 10X

Miscellaneous Information

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

Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS
Analytical Method: EPA 537.1 Modified
Analytical Procedure: GL-OA-E-076 REV# 14
Analytical Batches: 2554994 and 2554993
The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification
651982006 W010224-32
651982007 D010224-32
651982008 W010224-33
651982009 D010224-33
651982010 W010224-21
651982011 D010224-21
651982012 W010224-21C
651982013 D010224-21C
651982014 FB010224-02
1205626094 Method Blank (MB)
1205626095 Laboratory Control Sample (LCS)
1205626096 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 651982006
(W010224-32), 651982007 (D010224-32), 651982008 (W010224-33) and 651982009 (D010224-33) in this batch in
this SDG. One or more target analytes failed acceptance criteria with a positive bias in the standards bracketing the
samples in this SDG. These target analytes were not detected in the associated environmental samples; therefore, the
non-compliance had no adverse effect on the data.

Quality Control (QC) Information

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

LCS/LCSD Relative Percent Difference (RPD) Statement
Not all of the relative percent differences (RPDs) between the LCS and the LCSD were within the acceptance limits
Page 104 of 106 SDG: 651982
for this SDG. However, the LCS and LCSD recoveries were all acceptable.
Sample Analyte Value
1205626095 (LCS) and 1205626096 (LCSD)Perfluorooctadecanoic acid (PFODA)RPD 43* (0%-35%)
Perfluorooctanesulfonamide (PFOSA)RPD 24* (0%-22%)

Internal Standard (ISTD) Acceptance
Samples (See Below) exceeded internal standard acceptance criteria for 1,2-13C2 Fluorotelomer sulfonate 6:2 with a
positive bias. There were no detections of the associated native target analyte Fluorotelomer sulfonate 6:2 (6:2 FTS)
in the samples. These were Field Blank and/or Trip Blank samples therefore the samples were not diluted in order to
bring the internal standard within acceptance criteria. Data were reported as is.
Sample Analyte Value
651982014 (FB010224-02)1, 2-13C2 Fluorotelomer sulfonate 6:2 283* (60%-200%)

Technical Information

Sample Dilutions
The following samples and/or QC were diluted due to the Internal Standard Recovery not within the limits in the
undiluted analysis. 651982006 (W010224-32), 651982007 (D010224-32), 651982009 (D010224-33), 651982010
(W010224-21), 651982011 (D010224-21) and 651982013 (D010224-21C).
Analyte
651982
006 007 009 010 011 013
1H, 1H, 2H, 2H-Perfluorooctane sulfonic acid (6:2 FTS)10X 10X 10X 10X 10X 10X

Miscellaneous Information

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

Product: The Extraction and Analysis of Per- and Polyfluoroalkyl Substances Using LCMSMS
Analytical Method: EPA 537.1 Modified
Analytical Procedure: GL-OA-E-076 REV# 14
Analytical Batches: 2555004 and 2555003
The following samples were analyzed using the above methods and analytical procedure(s).

GEL Sample ID# Client Sample Identification
651982015 TB011624-01
1205626107 Method Blank (MB)
1205626108 Laboratory Control Sample (LCS)
1205626109 Laboratory Control Sample Duplicate (LCSD)

The samples in this SDG were analyzed on an "as received" basis.
Page 105 of 106 SDG: 651982
Data Summary:

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

Quality Control (QC) Information

Method Blank (MB) Statement
The blank analyzed with this SDG did not meet the established acceptance criteria. There were confirmed hits of
target analytes in the blank above the PQL. However, there are no hits in the samples. The blank contamination is
attributed to laboratory error and the data is reported as is.
Sample Analyte Value
1205626107 (MB)Perfluorooctane sulfonic acid (PFOS)3.35 * 10 > 0

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

Internal Standard (ISTD) Acceptance
The following internal standard recovered outside the acceptance range with a positive bias. The associated native
target compound did not have a discernable peak, therefore there is no effect on the quality of the data. These are
Field Blank samples, so no dilutions were performed. 651982015 (TB011624-01).

Miscellaneous Information

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

Certification Statement

Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless otherwise noted in the analytical case narrative.
Page 106 of 106 SDG: 651982