Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

7/1/2016<0.0020<0.0020

3/26/2009

ND

3/26/2009

0.18

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 1<0.0020<0.020<0.020<0.0020<0.0020<0.0020

Location: 2
Non-response to sampling offer in Ongoing 2016 Program.

Location: 3
BED1

6/12/2024<0.0020<0.0020<0.0020

Carbon Changeout 06/12/2024 - 5yr.
BED1

2/9/2021<0.0020<0.0020<0.0020

BED1-DUP

2/9/2021<0.0020<0.0020<0.0020BED1

10/27/2020<0.0020<0.0020<0.0020BED1

6/29/2020<0.0020<0.0020<0.0020BED1

12/4/2019<0.0020<0.0020<0.0020BED1

3/7/2019<0.0020<0.0020<0.0020PT

3/7/2019

0.11

0.0044

0.024

BED1

6/18/2018<0.0020<0.0020<0.0020BED1

3/16/2018<0.0020<0.0020<0.0020<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

9/7/2017<0.0020<0.0020<0.0020PT

9/7/2017

0.065<0.0020<0.0020BED1

6/27/2017<0.0020<0.0020<0.0020

10/26/2016

0.14 B

0.0049 B

0.024 B

<0.020<0.0200.0049 B

0.022 B

<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.0033 B<0.00200.074 B

0.054 B

<0.00200.0033 B<0.00200.073 B

0.053 B

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/04/2017.
-DUP

10/26/2016

0.13 BGAC installed 01/04/2017.
3/26/2009

0.16

3/27/2009

0.10

Location: 4
PWS according to homeowner.

Location: 5
3/27/2009

0.053

Non-response to sampling offer in Ongoing 2016 Program.

Location: 6
3/27/2009

ND

PWS according to homeowner.

Location: 7
3/27/2009

0.063

Non-response to sampling offer in Ongoing 2016 Program.

Location: 8
3/27/2009

ND

PWS according to homeowner.

Location: 9
BED1

5/28/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/12/2024<0.0020<0.0020<0.0020BED1

11/10/2023<0.0020<0.0020<0.0020PT

8/9/2023

0.087

0.00950.0097BED1

8/9/2023<0.0020<0.0020<0.0020BED1

4/18/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 04/18/2023 - 5yr.
BED1

3/22/2023<0.0020<0.0020<0.0020BED1

10/13/2022<0.0020<0.0020<0.0020BED1

7/25/2022<0.0020<0.0020<0.0020PT

7/25/2022

0.094

0.010

0.0089BED1

4/7/2022<0.0020<0.0020<0.0020BED1

1/4/2022<0.0020<0.0020<0.0020BED1

10/6/2021<0.0020<0.0020<0.0020BED1

7/7/2021<0.0020<0.0020<0.0020PT

7/7/2021

0.10

0.00840.0066BED1

4/7/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/20/2021<0.0020<0.0020<0.0020BED1

10/6/2020<0.0020<0.0020<0.0020BED1

7/28/2020<0.0020<0.0020<0.0020PT

7/28/2020

0.11

0.00920.0086BED1

6/8/2020<0.0020<0.0020<0.0020BED1

1/29/2020<0.0020<0.0020<0.0020BED1

10/16/2019<0.0020<0.0020<0.0020PT

7/26/2019

0.12

0.010

0.011

BED1

7/26/2019<0.0020<0.0020<0.0020BED1

4/18/2019<0.0020<0.0020<0.0020BED1

2/11/2019<0.0020<0.0020<0.0020BED1

11/12/2018<0.0020<0.0020<0.0020PT

8/21/2018

0.10

0.00830.0070BED1

8/21/2018<0.0020<0.0020<0.0020BED1

5/31/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

3/14/2018<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

0.0063

0.065

0.045

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 01/09/2018 - Fe.
BED1

12/5/2017<0.0020<0.0020<0.0020PT

8/18/2017

0.11

0.00570.0063

BED1

8/18/2017<0.0020<0.0020<0.0020BED1

6/23/2017<0.0020<0.0020<0.0020BED1

3/3/2017<0.0020<0.0020<0.0020

7/8/2016

0.13 J

0.00720.0064<0.020<0.0200.0049 J<0.0020<0.0020

GAC installed 10/12/2016.
3/27/2009

0.074

Location: 10
BED1

4/18/2024<0.0020<0.0020<0.0020BED1

1/3/2024<0.0020<0.0020<0.0020BED1

10/3/2023<0.0020<0.0020<0.0020BED1

7/10/2023<0.0020<0.0020<0.0020PT

7/10/2023

0.045

0.00460.0057BED1

4/5/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/3/2023<0.0020<0.0020<0.0020BED1

10/4/2022<0.0020<0.0020<0.0020PT

7/6/2022

0.030

0.0030 J

0.0035BED1

7/6/2022<0.0020<0.0020<0.0020BED1

4/6/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/15/2022 - 5yr.
BED1

1/4/2022<0.0020<0.0020<0.0020BED1

10/5/2021<0.0020<0.0020<0.0020PT

7/7/2021

0.051

0.00510.0039BED1

7/7/2021<0.0020<0.0020<0.0020BED1

4/9/2021<0.0020<0.0020<0.0020BED1

1/22/2021<0.0020<0.0020<0.0020BED1

10/15/2020<0.0020<0.0020<0.0020PT

8/12/2020

0.054

0.00440.0036BED1

8/12/2020<0.0020<0.0020<0.0020BED1

6/10/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/31/2020<0.0020<0.0020<0.0020

BED1

10/18/2019<0.0020<0.0020<0.0020BED1

7/22/2019<0.0020<0.0020<0.0020PT

7/22/2019

0.056

0.00420.0038BED1

4/16/2019<0.0020<0.0020<0.0020BED1

1/31/2019<0.0020<0.0020<0.0020BED1

11/8/2018<0.0020<0.0020<0.0020PT

8/8/2018

0.055

0.00370.0029BED1

8/8/2018<0.0020<0.0020<0.0020BED1

5/10/2018<0.0020<0.0020<0.0020BED2

3/9/2018<0.0020<0.0020<0.0020BED1

3/9/2018

0.0034<0.0020<0.0020BED1

12/12/2017<0.0020<0.0020<0.0020BED1

9/7/2017<0.0020<0.0020<0.0020PT

9/7/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

6/7/2017<0.0020<0.0020<0.0020 UJ

BED1-DUP

3/2/2017<0.0020<0.0020<0.0020BED1

3/2/2017<0.0020<0.0020<0.0020-DUP

6/30/2016

0.049

0.00450.0026<0.020<0.0200.00460.0026<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.0024

0.042

0.02

<0.0020<0.00200.0025

0.043

0.021

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/21/2016.
6/30/2016

0.052

GAC installed 10/21/2016.
3/27/2009

0.036

Location: 11
BED1

4/17/2024<0.0020<0.0020<0.0020BED1

1/31/2024<0.0020<0.0020<0.0020BED1

11/6/2023<0.0020<0.0020<0.0020BED1

8/30/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/30/2023 - 5yr.
PT

8/30/2023

0.041

0.00380.0020Carbon Changeout 08/30/2023 - 5yr.
BED1

5/9/2023<0.0020<0.0020<0.0020BED1

3/1/2023<0.0020<0.0020<0.0020

BED1

10/18/2022<0.0020<0.0020<0.0020PT

8/10/2022

0.050

0.00740.0052Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/10/2022<0.0020<0.0020<0.0020BED1

5/19/2022<0.0020<0.0020<0.0020BED1

2/24/2022<0.0020<0.0020<0.0020

BED1

11/23/2021<0.0020<0.0020<0.0020BED1

8/31/2021<0.0020<0.0020<0.0020PT

8/31/2021

0.049

0.00570.0047PT

8/6/2020

0.041

0.00340.0024BED1

8/6/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
BED1

8/6/2020<0.0020<0.0020<0.0020PT

8/6/2020

0.043

0.0034 J

0.0023

Split sampling for method comparison.
BED1

6/3/2020<0.0020<0.0020<0.0020BED1

1/22/2020<0.0020<0.0020<0.0020BED1

10/8/2019<0.0020<0.0020<0.0020PT

7/15/2019

0.043

0.00270.0021BED1

7/15/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/10/2019<0.0020<0.0020<0.0020BED1

1/22/2019<0.0020<0.0020<0.0020BED1

10/31/2018<0.0020<0.0020<0.0020

BED1

7/20/2018<0.0020<0.0020<0.0020PT

7/20/2018

0.044

0.0024<0.0020BED1

4/17/2018<0.0020<0.0020<0.0020

7/21/2016

0.034

0.0021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0025<0.0020

0.035

0.019

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/13/2018.
3/27/2009

0.014

Location: 12
BED1

10/29/2020<0.0020

Replacement well installed (Regulatory Location ID #556). Not qualified so GAC removed 03/19/2021. Well decommissioned according to NJ Data Miner.
PT

8/26/2020

0.063

0.00320.0095BED1

8/26/2020<0.0020<0.0020<0.0020BED1

6/16/2020<0.0020<0.0020<0.0020BED1

2/12/2020<0.0020<0.0020<0.0020BED1

11/11/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 10 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/4/2019

0.13

0.00410.0097

BED1-DUP

9/4/2019<0.0020<0.0020<0.0020BED1

9/4/2019<0.0020<0.0020<0.0020BED1

5/16/2019<0.0020<0.0020<0.0020

BED1-DUP

3/21/2019<0.0020<0.0020<0.0020

BED1

3/21/2019<0.0020<0.0020<0.0020BED1

12/4/2018<0.0020<0.0020<0.0020

BED1-DUP

12/4/2018<0.0020<0.0020<0.0020BED1

8/14/2018<0.0020<0.0020<0.0020

BED1-DUP

8/14/2018<0.0020<0.0020<0.0020PT

8/14/2018

0.099

0.00330.0065BED1

5/11/2018<0.0020<0.0020<0.0020

BED1-DUP

5/11/2018<0.0020<0.0020<0.0020

BED1-DUP

3/16/2018<0.0020<0.0020<0.0020BED1

3/16/2018<0.0020<0.0020<0.0020BED1

12/12/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 11 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/29/2017<0.0020<0.0020<0.0020PT

9/29/2017

0.092

0.00340.0061 B

BED1

6/23/2017<0.0020<0.0020<0.0020

12/7/2016

0.085

0.004

0.0058NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

0.0027

0.1

0.054

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/31/2017.
3/27/2009

0.092

Location: 13
BED1

5/28/2024<0.0020<0.0020<0.0020

BED1

1/23/2024<0.0020<0.0020<0.0020

Carbon Changeout 01/23/2024 - 5yr.
BED1

10/5/2023<0.0020<0.0020<0.0020PT

7/10/2023

0.019<0.00200.0067BED1

7/10/2023<0.0020<0.0020<0.0020BED1

4/4/2023<0.0020<0.0020<0.0020BED1

1/3/2023<0.0020<0.0020<0.0020BED1

10/7/2022<0.0020<0.0020<0.0020BED1

7/19/2022<0.0020<0.0020<0.0020PT

7/19/2022

0.029<0.0020

0.012

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 12 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/14/2022<0.0020<0.0020<0.0020BED1

1/25/2022<0.0020<0.0020<0.0020BED1

10/26/2021<0.0020<0.0020<0.0020BED1

8/18/2021<0.0020<0.0020<0.0020PT

8/18/2021

0.039

0.0031

0.014

BED1

6/7/2021<0.0020<0.0020<0.0020BED1

2/10/2021<0.0020<0.0020<0.0020BED1

11/9/2020<0.0020<0.0020<0.0020PT

9/8/2020

0.047

0.0030

0.014

BED1

9/8/2020<0.0020<0.0020<0.0020

BED1-DUP

9/8/2020<0.0020<0.0020<0.0020BED1

6/22/2020<0.0020<0.0020<0.0020

BED1-DUP

3/19/2020<0.0020<0.0020<0.0020

BED1

3/19/2020<0.0020<0.0020<0.0020BED1

12/6/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 13 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/10/2019

0.054

0.003

0.017

BED1-DUP

9/10/2019<0.0020<0.0020<0.0020BED1

9/10/2019<0.0020<0.0020<0.0020BED1

4/29/2019<0.0020<0.0020<0.0020PT

2/26/2019

0.055

0.0032

0.017

BED1

2/26/2019<0.0020<0.0020<0.0020BED1

11/5/2018<0.0020<0.0020<0.0020

4/30/2018

0.041

0.00230.012<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.0020

0.032

0.019

0.0055<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 07/24/2018.
3/27/2009

0.067

Location: 14-DUP

3/25/2024<0.0020<0.0020

4/11/2022<0.0020<0.0020 UJ <0.0020

4/11/2022<0.0020<0.0020 UJ <0.0020

2/23/2021<0.0020<0.0020<0.0020

7/11/2016<0.0020<0.0020<0.0020

3/30/2009

ND

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 14 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

3/9/2018

0.0056<0.0020<0.0020<0.020<0.0207/8/2016<0.0020<0.0020<0.0020<0.0203/30/2009

NQ<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.015

0.006

<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 15

Location: 16
4/22/2024<0.0020<0.0020<0.0020

4/25/2022<0.0020<0.0020<0.0020

3/25/2021<0.0020<0.0020<0.0020

7/13/2016<0.0020<0.0020<0.0020

3/30/2009

ND

Location: 17
POST

3/7/2024<0.0020<0.0020<0.0020PRE

3/7/2024<0.0020<0.0020<0.0020POST

4/4/2022<0.0020<0.0020<0.0020PRE

4/4/2022<0.0020<0.0020<0.0020POST

3/4/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 15 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
PRE

-DUP

Date

PFOA

PFOS

PFNA

3/4/2021<0.0020<0.0020<0.0020

7/1/2016<0.0020<0.0020<0.0020

3/30/2009

ND

3/30/2009

ND

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 18
5/20/2024<0.0020<0.0020<0.0020

2/21/2022<0.0020<0.0020<0.0020

3/30/2009

ND<0.0020<0.0020<0.0020<0.0020

Location: 19

-DUP

-DUP

6/24/2024<0.0020<0.0020<0.0020

6/24/2024<0.0020<0.0020<0.0020

11/1/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

11/1/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/30/2009

ND

Location: 20
BED1-DUP

6/20/2024<0.0020<0.0020<0.0020

BED1

6/20/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 16 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/6/2024<0.0020<0.0020<0.0020BED1

11/9/2023<0.0020<0.0020<0.0020PT

8/28/2023

0.17

0.0054 J

0.0057 J

BED1

8/28/2023<0.0020<0.0020<0.0020BED1

6/5/2023<0.0020<0.0020<0.0020

BED1

2/20/2023<0.0020<0.0020<0.0020BED1

11/10/2022<0.0020<0.0020<0.0020PT

8/15/2022

0.15

0.00430.0044BED1

8/15/2022<0.0020<0.0020<0.0020BED1

5/16/2022<0.0020<0.0020<0.0020

BED1

2/21/2022<0.0020<0.0020<0.0020BED1

11/3/2021<0.0020<0.0020<0.0020PT

8/16/2021

0.14

0.00460.0052

BED1

8/16/2021<0.0020<0.0020<0.0020BED1

4/22/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 17 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/3/2021<0.0020<0.0020<0.0020

BED1

10/21/2020<0.0020<0.0020<0.0020PT

8/6/2020

0.14

0.00420.0037

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 08/05/2020 - 5yr.
BED1-DUP

8/6/2020<0.0020<0.0020<0.0020

Carbon Changeout 08/05/2020 - 5yr.
BED1

8/6/2020<0.0020<0.0020<0.0020

Carbon Changeout 08/05/2020 - 5yr.
BED1

6/8/2020<0.0020<0.0020<0.0020

BED1

2/21/2020<0.0020<0.0020<0.0020BED1

11/11/2019<0.0020<0.0020<0.0020PT

8/26/2019

0.13

0.00320.0027BED1

8/26/2019<0.0020<0.0020<0.0020BED1

4/30/2019<0.0020<0.0020<0.0020BED1

2/25/2019<0.0020<0.0020<0.0020BED1

12/3/2018<0.0020<0.0020<0.0020PT

8/30/2018

0.14

0.00670.0043

0.021

BED1

8/30/2018<0.0020<0.0020<0.0020<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 18 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

BED1

5/22/2018<0.0020<0.0020BED1

5/22/2018<0.010PT

5/22/2018

0.014

BED1

2/26/2018

PT

2/26/2018<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.00040<0.00040

0.00200.00440.19

0.12

0.00062<0.00040<0.00040<0.00040<0.00040<0.020<0.0200.00240.00470.22

0.12<0.0020<0.0020<0.0020<0.0020<0.0020

0.19

0.074

February-March 2018 branched and linear study sample.
BED1

11/16/2017<0.0020<0.0020<0.0020BED1

8/16/2017<0.0020<0.0020<0.0020PT

8/16/2017

0.12

0.00670.0034BED1

6/8/2017<0.0020 UJ <0.0020

BED1-DUP

3/3/2017<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

3/3/2017<0.0020<0.0020<0.0020

7/21/2016

0.13

0.011

0.0039<0.0020 UJ

GAC installed 11/03/2016.
3/30/2009

0.068

Location: 21
BED1

4/4/2024<0.0020<0.0020<0.0020BED1

1/4/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 19 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/2/2023<0.0020<0.0020<0.0020PT

7/26/2023

0.084

0.0050

0.017

BED1

7/26/2023<0.0020<0.0020<0.0020BED1

4/11/2023<0.0020<0.0020<0.0020BED1

1/10/2023<0.0020<0.0020<0.0020BED1

10/11/2022<0.0020<0.0020<0.0020PT

7/14/2022

0.092

0.0055

0.020

BED1

7/14/2022<0.0020<0.0020<0.0020BED1

4/6/2022<0.0020<0.0020<0.0020BED1

1/4/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 12/30/2021 - 5yr.
BED1

10/12/2021

0.0021<0.0020<0.0020

BED2

10/12/2021<0.0020<0.0020<0.0020

BED1

7/20/2021

0.0023<0.0020<0.0020

BED2

7/20/2021<0.0020<0.0020<0.0020PT

7/20/2021

0.12

0.00670.024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 20 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/20/2021

0.0032<0.0020<0.0020

BED2

4/20/2021<0.0020<0.0020<0.0020BED1

1/26/2021

0.0027<0.0020<0.0020

BED2

1/26/2021<0.0020<0.0020<0.0020BED1

10/14/2020

0.0026<0.0020<0.0020BED1

8/12/2020

0.0022<0.0020<0.0020PT

8/12/2020

0.11

0.0048

0.015

BED1

6/10/2020

0.0024<0.0020<0.0020BED1

2/6/2020

0.0037<0.0020<0.0020BED1

10/29/2019

0.0043<0.0020<0.0020PT

8/21/2019

0.14

0.0064

0.016

BED1

8/21/2019

0.0036<0.0020<0.0020BED1

5/9/2019

0.0045<0.0020<0.0020BED1

3/14/2019

0.0035<0.0020<0.0020BED1

12/3/2018

0.0033<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 21 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/9/2018

0.15

0.0060

0.019

BED1

8/9/2018

0.0026<0.0020<0.0020BED1

5/10/2018

0.0026<0.0020<0.0020

BED2

3/12/2018<0.0020<0.0020<0.0020BED1

3/12/2018

0.0028<0.0020<0.0020BED2

12/5/2017<0.0020<0.0020<0.0020BED1

12/5/2017

0.003<0.0020<0.0020PT

8/17/2017

0.14

0.0064

0.015

BED2

8/17/2017<0.0020<0.0020<0.0020BED1

8/17/2017

0.0038<0.0020<0.0020BED2

6/8/2017<0.0020<0.0020<0.0020BED1

6/8/2017

0.003<0.0020<0.0020BED1

3/2/2017

0.0028<0.0020<0.0020BED2

3/2/2017<0.0020<0.0020<0.0020

7/13/20160.18 J

0.00830.019

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0075<0.0020

0.11

0.073

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 10/20/2016.
3/30/2009

0.22

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 22 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

7/8/2024

0.0092<0.0020<0.0020POST

6/6/2022

0.011<0.0020<0.0020PRE

6/6/2022

0.012<0.0020<0.0020

5/10/2021

0.0063<0.0020<0.0020

4/23/2018

0.0072<0.0020

7/12/2016

0.0086 J

3/31/2009

ND

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 22<0.0020<0.0020<0.0020<0.0020

0.028

0.012

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.022

0.0084<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.02

0.0077<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 23
3/31/2009

0.13

PWS according to homeowner.

Location: 24
5/20/2024<0.0020

3/31/2009

ND

Location: 25
BED2

6/4/2024

0.0021<0.0020<0.0020BED1

6/4/2024

0.0022<0.0020<0.0020BED1

3/4/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 23 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/12/2023<0.0020<0.0020<0.0020PT

9/12/2023

0.11

0.0035 J

0.0082

BED1

9/12/2023<0.0020<0.0020<0.0020BED1

5/8/2023<0.0020<0.0020<0.0020BED1

2/8/2023<0.0020<0.0020<0.0020BED1

11/3/2022<0.0020<0.0020<0.0020PT

8/31/2022

0.083

0.00360.0069BED1

8/31/2022<0.0020<0.0020<0.0020BED1

5/9/2022<0.0020<0.0020<0.0020BED1

2/3/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/03/2022 - 5yr.
BED1

11/15/2021<0.0020<0.0020<0.0020BED1

9/2/2021<0.0020<0.0020<0.0020PT

9/2/2021

0.12

0.0029 J

0.0095BED1

6/3/2021<0.0020<0.0020<0.0020

BED1-DUP

3/17/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 24 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/17/2021<0.0020<0.0020<0.0020

BED1-DUP

11/4/2020<0.0020<0.0020<0.0020BED1

11/4/2020<0.0020<0.0020<0.0020BED1

9/2/2020<0.0020<0.0020<0.0020PT

9/2/2020

0.064

0.0025

0.011

BED1

6/22/2020<0.0020<0.0020<0.0020BED1

2/24/2020<0.0020<0.0020<0.0020

BED1

10/18/2019<0.0020<0.0020<0.0020

BED1-DUP

7/29/2019<0.0020<0.0020<0.0020PT

7/29/2019

0.12

0.00290.0090BED1

7/29/2019<0.0020<0.0020<0.0020BED1

4/22/2019<0.0020<0.0020<0.0020BED1

2/13/2019<0.0020<0.0020<0.0020-DUP

2/13/2019<0.0020<0.0020<0.0020

BED1-DUP

11/14/2018<0.0020<0.0020<0.0020BED1

11/14/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 25 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/23/2018

0.10

0.00250.0070

BED1-DUP

8/23/2018<0.0020<0.0020<0.0020BED1

8/23/2018<0.0020<0.0020<0.0020

BED1-DUP

5/31/2018<0.0020<0.0020<0.0020BED1

5/31/2018<0.0020<0.0020<0.0020

BED1-DUP

2/16/2018<0.0020<0.0020<0.0020BED1

2/16/2018<0.0020<0.0020<0.0020

BED1

11/17/2017<0.00200.021 J

<0.0020

BED1-DUP

11/17/2017<0.0020<0.0020<0.0020

BED2

11/17/2017<0.0020<0.0020<0.0020

BED1-DUP

8/17/2017<0.0020<0.0020<0.0020BED1

8/17/2017<0.0020<0.0020<0.0020PT

8/17/2017

0.1

0.00280.0044

BED1

6/21/2017<0.0020<0.0020<0.0020BED1

3/27/2017<0.0020<0.0020<0.0020-DUP

7/21/2016

0.14

0.00260.0076

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.00330.0022

0.089

0.046

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 12/12/2016.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 26 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate
7/21/2016

PFOA

PFOS

PFNA

0.14

0.00260.0071

NEtFOSAA NMeFOSAA<0.020<0.020PFBS
0.0033

PFHxS

PFHxA

PFHpA

0.0021

0.092

0.047

PFDA
<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 12/12/2016.
3/31/2009

0.056

Location: 26
BED1

6/19/2024<0.0020<0.0020<0.0020

BED1

3/21/2024<0.0020<0.0020<0.0020PT

8/21/2023

0.025

0.00200.0079BED1

8/21/2023<0.0020<0.0020<0.0020BED1

5/24/2023<0.0020<0.0020<0.0020BED1

3/2/2023<0.0020<0.0020<0.0020BED1

12/1/2022<0.0020<0.0020<0.0020

Carbon Changeout 11/30/2022 - 5yr.
BED1

8/16/2022<0.0020<0.0020<0.0020PT

8/16/2022

0.020<0.00200.0056BED1

5/9/2022<0.0020<0.0020<0.0020BED1

2/2/2022<0.0020<0.0020<0.0020PT

8/25/2021

0.026

0.00230.0071BED1

8/25/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 27 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/14/2021<0.0020<0.0020<0.0020BED1

3/8/2021<0.0020<0.0020<0.0020BED1

11/10/2020<0.0020<0.0020<0.0020PT

9/14/2020

0.026<0.00200.0068BED1

9/14/2020<0.0020<0.0020<0.0020BED1

6/30/2020<0.0020<0.0020<0.0020BED1

2/14/2020<0.0020<0.0020<0.0020BED1

11/8/2019<0.0020<0.0020<0.0020BED1

9/3/2019<0.0020<0.0020<0.0020PT

9/3/2019

0.028<0.00200.0083

BED1

6/7/2019<0.0020<0.0020<0.0020BED1

3/22/2019<0.0020<0.0020<0.0020

BED1-DUP

3/22/2019<0.0020<0.0020<0.0020

BED1-DUP

12/21/2018<0.0020<0.0020<0.0020

BED1

12/21/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 28 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAPT

9/21/2018

0.031

0.00230.0089BED1

9/21/2018<0.0020<0.00200.0029

BED1-DUP

5/8/2018

BED1

5/8/2018

BED1

5/8/2018<0.010PT

5/8/2018<0.010

BED1-DUP

5/8/2018

PT

2/28/2018

ADONA<0.0040<0.010<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00040<0.00040

0.000700.00055

0.040

0.025

<0.00040<0.00040<0.00040<0.00040<0.00040<0.020<0.0200.0024<0.0020

0.043

0.025

<0.0020<0.0020<0.0020<0.0020<0.0062

0.032

0.016

February-March 2018 branched and linear study sample.
BED1-DUP

2/28/2018<0.0020<0.0020<0.0020BED1

2/28/2018<0.0020<0.0020<0.0020

BED1-DUP

12/15/2017<0.0020<0.0020<0.0020

Carbon Changeout 10/17/2017 - Fe.
BED1

12/15/2017<0.0020<0.0020<0.0020

Carbon Changeout 10/17/2017 - Fe.
PT

9/20/2017

0.042

0.0024

0.013

BED1

9/20/2017<0.0020<0.0020<0.0020

8/11/2016

0.047<0.00200.013

GAC installed 12/02/2016.
3/31/2009

0.055

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 29 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/16/2024<0.0020<0.0020<0.0020BED1

1/17/2024<0.0020<0.0020<0.0020BED1

10/17/2023<0.0020<0.0020<0.0020PT

7/31/2023

0.090<0.0020 UJ 0.0033 J

BED1

7/31/2023<0.0020<0.0020<0.0020BED1

5/2/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 27

Carbon Changeout 02/08/2023 - 5yr.
BED1

10/12/2022<0.0020<0.0020<0.0020PT

7/27/2022

0.070<0.00200.0026

BED1

7/27/2022<0.0020<0.0020<0.0020

BED1

4/21/2022<0.0020<0.0020<0.0020BED1

1/18/2022<0.0020<0.0020<0.0020

BED1

10/18/2021<0.0020<0.0020<0.0020PT

7/22/2021

0.11<0.00200.0027BED1

7/22/2021<0.0020<0.0020<0.0020BED1

4/28/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 30 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/4/2021<0.0020<0.0020<0.0020BED1

10/27/2020<0.0020<0.0020<0.0020BED1

8/25/2020<0.0020<0.0020<0.0020PT

8/25/2020

0.047<0.0020<0.0020BED1

6/16/2020<0.0020<0.0020<0.0020

BED1

1/20/2020<0.0020<0.0020<0.0020BED1

10/2/2019<0.0020<0.0020<0.0020BED1

7/1/2019<0.0020<0.0020<0.0020PT

7/1/2019

0.077<0.0020<0.0020BED1

4/3/2019<0.0020<0.0020<0.0020BED1

1/7/2019<0.0020<0.0020<0.0020BED1

10/22/2018<0.0020<0.0020<0.0020PT

7/9/2018

0.052<0.00200.0020BED1

7/9/2018<0.0020<0.0020<0.0020BED1

4/13/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 31 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

7/6/2016

0.027

0.002

<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.05

0.015

PFDA
<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/17/2018.
3/31/2009

NQ

Location: 28
BED1

11/8/2022<0.0020

GAC removed 01/05/2023 at owner's request. Home demolished for warehouse development.
PT

9/6/2022

0.12

0.00260.0060BED1

9/6/2022<0.0020<0.0020<0.0020BED1

5/23/2022<0.0020<0.0020<0.0020BED1

3/3/2022<0.0020<0.0020<0.0020BED2

12/6/2021<0.0020<0.0020<0.0020

Carbon Changeout 11/16/2021 - 5yr.
BED1

12/6/2021

0.0029<0.0020<0.0020

Carbon Changeout 11/16/2021 - 5yr.
PT

9/8/2021

0.13<0.00200.0023BED1

9/8/2021<0.0020<0.0020<0.0020BED1

6/16/2021<0.0020<0.0020<0.0020BED1

3/2/2021<0.0020<0.0020<0.0020

BED1-DUP

3/2/2021<0.0020<0.0020<0.0020BED1

12/8/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 32 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/10/2020<0.0020<0.0020<0.0020

BED1-DUP

9/10/2020<0.0020<0.0020<0.0020PT

9/10/2020

0.094<0.00200.0029BED1

6/29/2020<0.0020<0.0020<0.0020BED1

12/5/2019<0.0020<0.0020<0.0020PT

9/5/2019

0.12<0.0020<0.0020BED1

9/5/2019<0.0020<0.0020<0.0020

BED1

5/20/2019<0.0020<0.0020<0.0020

BED1

3/19/2019<0.0020<0.0020<0.0020BED1

12/6/2018<0.0020<0.0020<0.0020PT

9/6/2018

0.091

0.00290.0063BED1

9/6/2018<0.0020<0.0020<0.0020BED1

6/4/2018<0.0020<0.0020<0.0020BED1

3/16/2018<0.0020<0.0020<0.0020

BED1

12/19/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 33 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/7/2017

0.018

0.015

0.0092

BED1

9/7/2017<0.0020<0.0020<0.0020BED1

6/27/2017<0.0020<0.0020<0.0020

12/5/2016

0.085

0.00320.0027<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.077

0.043

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/24/2017.
3/31/2009

0.042

Location: 29
BED1

10/18/2022<0.0020

GAC removed 03/28/2023 at owner's request. Permanent bottled water.
PT

8/8/2022

0.021<0.00200.0021

BED1

8/8/2022<0.0020<0.0020<0.0020BED1

5/19/2022<0.0020<0.0020<0.0020BED1

2/16/2022<0.0020<0.0020<0.0020

BED1

11/18/2021<0.0020<0.0020<0.0020PT

8/19/2021

0.040<0.00200.0065BED1

8/19/2021<0.0020<0.0020<0.0020BED1

4/22/2021<0.0020<0.0020<0.0020

BED1

1/19/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 34 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/18/2020<0.0020<0.0020<0.0020BED1

9/16/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.0022<0.0020<0.0020BED1

6/10/2020<0.0020<0.0020<0.0020BED1

1/28/2020<0.0020<0.0020<0.0020BED1

10/11/2019<0.0020<0.0020<0.0020PT

7/19/2019

0.051

0.00210.0096BED1

7/19/2019

0.0023<0.0020<0.0020BED1

4/12/2019<0.0020<0.0020<0.0020BED1

1/24/2019<0.0020<0.0020<0.0020BED1

10/29/2018<0.0020<0.0020<0.0020PT

7/16/2018

0.046<0.00200.0075

BED1

7/16/2018<0.0020<0.0020<0.0020BED1

4/12/2018<0.0020<0.0020<0.0020

7/7/2016

0.027 J

<0.0020 U

0.0044 B

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020 U<0.020 U

0.0028<0.0020 U

0.073

0.019

<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U

GAC installed 01/09/2018.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 35 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate

PFOA

3/31/2009

0.042

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 30-DUP

12/5/2016

0.075

0.00250.0052<0.020<0.020<0.00200.0038

0.064

0.04

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.00200.0038

0.063

0.042

<0.0020<0.0020<0.0020<0.0020<0.0020

PWS connection 03/09/2017. Well decommissioned 06/06/2023.
12/5/2016

0.073

0.00240.0053<0.020PWS connection 03/09/2017. Well decommissioned 06/06/2023.
3/31/2009

0.064

Location: 31
BED1

5/31/2024<0.0020<0.0020<0.0020BED1

2/7/2024<0.0020<0.0020<0.0020BED1

11/8/2023<0.0020<0.0020<0.0020

Carbon Changeout 11/08/2023 - 5yr.
PT

8/8/2023

0.061

0.0086

0.019

BED1

8/8/2023<0.0020<0.0020<0.0020BED1

5/17/2023<0.0020<0.0020<0.0020BED1

3/1/2023<0.0020<0.0020<0.0020BED1

11/28/2022<0.0020<0.0020<0.0020PT

9/28/2022

0.062

0.017

0.028

BED1-DUP

9/28/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 36 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/28/2022<0.0020<0.0020<0.0020

BED1-DUP

6/28/2022<0.0020<0.0020<0.0020BED1

6/28/2022<0.0020<0.0020<0.0020BED1

2/23/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

11/18/2021<0.0020<0.0020<0.0020BED1

8/23/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.069

0.012

0.029

BED1

5/5/2021<0.0020<0.0020<0.0020BED1

2/10/2021<0.0020<0.0020<0.0020BED1

11/4/2020<0.0020<0.0020<0.0020PT

9/2/2020

0.092

0.010

0.030

BED1

9/2/2020<0.0020<0.0020<0.0020BED1

6/22/2020<0.0020<0.0020<0.0020BED1

3/6/2020<0.0020<0.0020<0.0020

BED1

10/23/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/20/2019

0.096

0.019

0.042

BED1

8/20/2019<0.0020<0.0020<0.0020BED1

4/29/2019<0.0020<0.0020<0.0020BED1

2/28/2019<0.0020<0.0020<0.0020

BED1

11/29/2018<0.0020<0.0020<0.0020BED1

9/19/2018<0.0020<0.0020<0.0020PT

9/19/2018

0.044

0.015

0.033

3/19/2018

0.11

0.0041

0.024

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.0020

0.069

0.046

0.0022<0.0020<0.0020<0.0020<0.0020

GAC installed 05/17/2018.
3/31/2009

0.14

Location: 32
PRE

5/23/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

POST

5/23/2022<0.0020<0.0020<0.0020POST

4/12/2021<0.0020<0.0020<0.0020PRE

4/12/2021<0.0020<0.0020<0.0020

8/26/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/26/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate
3/31/2009

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

ND

Location: 33
-DUP

-DUP

3/20/2024<0.0020<0.0020<0.0020

3/20/2024<0.0020<0.0020<0.0020

4/4/2022<0.0020<0.0020<0.0020

2/23/2021<0.0020<0.0020<0.0020

2/23/2021<0.0020<0.0020<0.0020

7/1/2016<0.0020<0.0020<0.0020

4/1/2009

ND<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 34
4/22/2024<0.0020

4/11/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

3/4/2021<0.0020<0.0020<0.0020

8/3/2016<0.0020<0.0020<0.0020

4/1/2009

ND

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

9/26/2022<0.0020<0.0020<0.0020

2/5/2020<0.0020<0.0020<0.0020<0.020<0.0202/5/2020<0.0020<0.0020<0.0020<0.0204/1/2009

ND<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 35-DUP

Location: 36
4/8/2024<0.0020

4/1/2009

ND

Location: 37
BED1

6/19/2024<0.0020<0.0020<0.0020

BED1-DUP

3/15/2024<0.0020<0.0020<0.0020BED1

3/15/2024<0.0020<0.0020<0.0020

BED1

11/21/2023<0.0020<0.0020<0.0020PT

9/5/2023

0.098

0.019

0.016

BED1

9/5/2023<0.0020<0.0020<0.0020BED1

5/30/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/24/2023<0.0020<0.0020<0.0020BED1

10/11/2022<0.0020<0.0020<0.0020PT

8/2/2022

0.090

0.016

0.012

BED1

8/2/2022<0.0020<0.0020<0.0020BED1

5/19/2022<0.0020<0.0020<0.0020

BED1-DUP

2/28/2022<0.0020<0.0020<0.0020BED1

2/28/2022<0.0020<0.0020<0.0020BED1

11/10/2021<0.0020<0.0020<0.0020PT

8/24/2021

0.084

0.019

0.014

BED1-DUP

8/24/2021<0.0020<0.0020<0.0020BED1

8/24/2021<0.0020<0.0020<0.0020BED1

4/15/2021<0.0020<0.0020<0.0020BED1

12/1/2020<0.0020<0.0020<0.0020BED1

9/28/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 08/04/2020 - Fe/Pressure.
PT

9/28/2020

0.10

0.016

0.010

Carbon Changeout 08/04/2020 - Fe/Pressure.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

BED1

6/26/2020<0.0020<0.0020<0.0020BED1

3/11/2020<0.0020<0.0020<0.0020BED1

10/31/2019<0.0020<0.0020<0.0020PT

8/23/2019

0.074

0.014

0.010

BED1

8/23/2019<0.0020<0.0020<0.0020BED1

5/7/2019<0.0020<0.0020<0.0020BED1

3/7/2019<0.0020<0.0020<0.0020BED1

12/4/2018<0.0020<0.0020<0.0020PT

9/5/2018

0.096

0.020

0.014

0.0070BED1

9/5/2018<0.0020<0.0020<0.0020<0.0040BED1

6/1/2018<0.0020<0.0020<0.0020BED1

3/13/2018<0.0020<0.0020<0.0020BED1

12/5/2017<0.0020<0.0020<0.0020PT

8/18/2017

0.11

0.019

0.011

BED1

8/18/2017<0.0020<0.0020<0.0020

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/28/2017<0.0020<0.0020<0.0020BED1

3/2/2017<0.0020<0.0020<0.0020

8/3/2016

0.13

0.017

0.0098NEtFOSAA NMeFOSAA<0.020<0.020PFBS

0.0046

PFHxS

PFHxA

PFHpA

0.0043

0.095

0.065

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 11/07/2016.
4/1/2009

0.15

Location: 38
BED1

4/4/2024<0.0020<0.0020<0.0020BED1

1/10/2024<0.0020<0.0020<0.0020BED1

10/2/2023<0.0020<0.0020<0.0020

BED1

7/21/2023<0.0020<0.0020<0.0020PT

7/21/2023

0.16

0.011

0.010

BED1

4/5/2023<0.0020<0.0020<0.0020BED1

1/5/2023<0.0020<0.0020<0.0020

BED1-DUP

10/6/2022<0.0020<0.0020<0.0020BED1

10/6/2022<0.0020<0.0020<0.0020PT

7/19/2022

0.18

0.012

0.012

BED1

7/19/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

4/14/2022<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 02/22/2022 - 5yr.
BED1

1/24/2022<0.0020<0.0020<0.0020

BED1-DUP

10/20/2021<0.0020<0.0020<0.0020

BED1

10/20/2021<0.0020<0.0020<0.0020PT

8/2/2021

0.093

0.018

0.010

BED1

8/2/2021<0.0020<0.0020<0.0020BED1

4/29/2021<0.0020<0.0020 UJ <0.0020

BED1

2/4/2021<0.0020<0.0020<0.0020

BED1

10/20/2020<0.0020<0.0020<0.0020BED1

8/17/2020<0.0020<0.0020<0.0020PT

8/17/2020

0.19

0.015

0.011

BED1

6/11/2020<0.0020<0.0020<0.0020BED1

2/4/2020<0.0020<0.0020<0.0020BED1

10/24/2019<0.0020<0.0020<0.0020PT

8/20/2019

0.11

0.016

0.0066

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

BED1

8/20/2019<0.0020<0.0020<0.0020BED1

4/29/2019<0.0020<0.0020<0.0020BED1

2/28/2019<0.0020<0.0020<0.0020BED1

12/3/2018<0.0020<0.0020<0.0020PT

8/13/2018

0.14

0.013

0.00660.0088BED1

8/13/2018<0.0020<0.0020<0.0020<0.0040BED1

5/10/2018<0.0020<0.0020<0.0020BED1

3/13/2018<0.0020<0.0020<0.0020BED1

12/5/2017<0.0020<0.0020<0.0020PT

9/6/2017

0.18

0.011

0.0064BED1

9/6/2017<0.0020<0.0020<0.0020BED1

6/23/2017<0.0020<0.0020<0.0020

BED1-DUP

6/23/2017<0.0020<0.0020<0.0020

BED1-DUP

3/27/2017<0.0020<0.0020<0.0020BED1

3/27/2017<0.0020<0.0020<0.0020

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

7/12/2016

0.16 J

0.015

0.0072<0.020<0.020<0.0020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.00490.0039

0.15

0.098

<0.0020<0.0020<0.0020<0.00200.0025<0.0020<0.020<0.0020<0.00200.00590.0032

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 12/07/2016.
4/1/2009

0.14

Location: 39
7/15/2024<0.0020<0.0020<0.0020

5/2/2022

0.0037<0.0020<0.0020

3/4/2021

0.0054<0.0020<0.0020

7/11/2016

0.0046<0.0020<0.0020

4/2/2009

ND<0.0020<0.0020<0.0020<0.0020

Location: 40
BED1

6/25/2024<0.0020<0.0020<0.0020BED1

3/12/2024<0.0020<0.0020<0.0020BED1

12/14/2023<0.0020<0.0020<0.0020PT

9/20/2023

0.054

0.00210.0076BED1

9/20/2023<0.0020<0.0020<0.0020BED1

6/15/2023<0.0020<0.0020<0.0020

BED1

2/21/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/29/2022<0.0020<0.0020<0.0020BED1

9/13/2022<0.0020<0.0020<0.0020PT

9/13/2022

0.063

0.00230.0051

BED1

6/6/2022<0.0020<0.0020<0.0020BED1

3/2/2022<0.0020<0.0020<0.0020

BED1-DUP

11/9/2021<0.0020<0.0020<0.0020BED1

11/9/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.057

0.00230.0062NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

PFDA

<0.0020

0.033

0.024

0.00300.047 J

<0.0020 UJ

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

0.010 J

<0.0020 UJ

Analyzed for 18 PFAS compounds for completeness. All results are on the Chemours Chambers Works website.
BED1

8/30/2021<0.0020<0.0020<0.0020

2/23/2021

0.058<0.00200.0086GAC installed 05/05/2021.
4/2/2009

0.050

Location: 41
4/2/2009

0.23

Non-response to sampling offer in Ongoing 2016 Program.

Location: 42
2/7/2022

0.071 J

<0.0020 UJ 0.0033 J<0.0020 UJ<0.0020 UJ

0.0033 J

0.0022 J

0.086

Permanent bottled water.
4/2/2009

0.19

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/3/2024<0.0020<0.0020<0.0020BED1

2/1/2024<0.0020<0.0020<0.0020BED1

10/25/2023<0.0020<0.0020<0.0020PT

8/23/2023

0.30

0.0089

0.031

BED1

8/23/2023<0.0020<0.0020<0.0020BED1

5/18/2023<0.0020<0.0020<0.0020BED1

2/16/2023<0.0020<0.0020<0.0020BED1

11/14/2022<0.0020<0.0020<0.0020PT

9/8/2022

0.28

0.0090

0.028

BED1

9/8/2022<0.0020<0.0020<0.0020BED1

6/9/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 43

Carbon Changeout 03/17/2022 - 5yr.
BED1

2/17/2022<0.0020<0.0020<0.0020BED1

11/11/2021<0.0020<0.0020<0.0020PT

8/26/2021

0.15

0.011

0.039

BED1

8/26/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 48 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/20/2021<0.0020<0.0020<0.0020BED1

2/11/2021<0.0020<0.0020<0.0020BED1

11/5/2020<0.0020<0.0020<0.0020BED1

8/11/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
PT

8/11/2020

0.19

0.014

0.049

BED1-DUP

8/11/2020<0.0020<0.0020<0.0020

Split sampling for method comparison.
BED1

8/11/2020<0.0020<0.0020<0.0020PT

8/11/2020

0.19

0.014

0.041

Split sampling for method comparison.
BED1

6/30/2020<0.0020<0.0020<0.0020BED1

3/11/2020<0.0020<0.0020<0.0020BED1

12/12/2019<0.0020<0.0020<0.0020PT

9/26/2019

0.17

0.0094

0.033

BED1

9/26/2019<0.0020<0.0020<0.0020BED1

5/23/2019<0.0020<0.0020<0.0020BED1

3/1/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 49 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

12/6/2018<0.0020<0.0020<0.0020PT

8/28/2018

0.25

0.013

0.035

0.015

BED1

8/28/2018<0.0020<0.0020<0.0020<0.0040BED1

5/3/2018<0.0020<0.0020<0.0020PT

5/3/2018

0.013

BED1

5/3/2018<0.010PT

3/5/2018<0.00040<0.00040

0.023

0.00860.26

0.16

0.0047<0.00040<0.00040<0.00040 UJ<0.00040 UJ

9Cl-PF3ONS

11Cl-PF3OUd PFPeA

0.22

PFBA

HFPO-DA

ADONA

0.094

February-March 2018 branched and linear study sample.
BED1

3/5/2018<0.0020<0.0020<0.0020

BED1

12/21/2017<0.0020<0.0020<0.0020PT

9/6/2017

0.33

0.015

0.038

BED1

9/6/2017<0.0020<0.0020<0.0020BED1

6/28/2017<0.0020<0.0020<0.0020BED1

3/3/2017<0.0020<0.0020<0.0020-DUP

8/3/2016

0.28 J

0.0092 J

0.025 J

<0.020 UJ<0.020 UJ

0.0053 J

0.0049 J

0.19 J

0.13 J<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

0.0095 J

0.024 J

<0.020 UJ<0.020 UJ

0.0059 J

0.0052 J

0.19 J

0.13 J<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

GAC installed 11/03/2016.
8/3/2016

0.26 J

GAC installed 11/03/2016.
4/2/2009

0.32

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 50 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/2/2024<0.0020<0.0020<0.0020BED1

1/4/2024<0.0020<0.0020<0.0020BED1

12/7/2023<0.0020<0.0020<0.0020PT

8/16/2023

0.031<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 44

Carbon Changeout 08/16/2023 - 5yr.
BED1

8/16/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/16/2023 - 5yr.
BED1

5/1/2023<0.0020<0.0020<0.0020

BED1

2/21/2023<0.0020<0.0020<0.0020

BED1

11/22/2022<0.0020<0.0020<0.0020BED1

7/5/2022<0.0020<0.0020<0.0020PT

7/5/2022

0.029<0.0020<0.0020BED1

4/5/2022<0.0020<0.0020<0.0020BED1

1/3/2022<0.0020<0.0020<0.0020BED1

10/4/2021<0.0020<0.0020<0.0020PT

7/6/2021

0.034

0.0027<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 51 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

7/6/2021<0.0020<0.0020<0.0020BED1

7/6/2021<0.0020<0.0020<0.0020BED1

4/6/2021<0.0020<0.0020<0.0020BED1

1/25/2021<0.0020<0.0020<0.0020

BED1-DUP

1/25/2021<0.0020<0.0020<0.0020BED1

10/6/2020<0.0020<0.0020<0.0020BED1

7/28/2020<0.0020<0.0020<0.0020PT

7/28/2020

0.021<0.0020<0.0020BED1

6/18/2020<0.0020<0.0020<0.0020

BED2

2/26/2020<0.0020<0.0020<0.0020BED1

2/26/2020<0.0020<0.0020<0.0020

BED1

11/19/2019<0.0020<0.0020<0.0020BED1

9/16/2019<0.0020<0.0020<0.0020PT

9/16/2019

0.018<0.0020<0.0020BED1

4/5/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 52 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/11/2019<0.0020<0.0020<0.0020BED1

10/25/2018<0.0020<0.0020<0.0020PT

7/9/2018

0.019<0.0020<0.0020BED1

7/9/2018<0.0020<0.0020<0.0020

7/7/2016

0.02 J

0.0021 J<0.0020 U

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020 U<0.020 U

0.002<0.0020 U

0.028

0.013

<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/13/2018.
4/2/2009

NQ

Location: 45
3/23/2023<0.0020<0.0020<0.0020

2/28/2022<0.0020<0.0020<0.0020

7/22/2016<0.0020<0.0020<0.0020

4/6/2009

ND

Location: 46
POST

4/15/2024<0.0020<0.0020<0.0020PRE

4/15/2024<0.0020<0.0020<0.0020POST

4/4/2022<0.0020<0.0020<0.0020PRE

4/4/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

3/9/2021<0.0020<0.0020<0.0020

7/8/2016<0.0020<0.0020<0.0020

4/6/2009

ND

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0027<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 47
4/6/2009

ND

Non-response to sampling offer in Ongoing 2016 Program.

Location: 48
5/7/2018

0.0022

4/6/2009

ND<0.0020<0.0020

Location: 49
4/6/2009

0.080

Non-response to sampling offer in Ongoing 2016 Program.

Location: 50
BED1

5/17/2024<0.0020<0.0020<0.0020BED1

2/16/2024<0.0020<0.0020<0.0020BED1

10/27/2023<0.0020<0.0020<0.0020PT

7/17/2023

0.23

0.011

0.016

BED1

7/17/2023<0.0020<0.0020<0.0020BED1

4/13/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/12/2023<0.0020<0.0020<0.0020BED1

10/10/2022<0.0020<0.0020<0.0020PT

8/4/2022

0.22

0.013

0.019

BED1

8/4/2022<0.0020<0.0020<0.0020

BED1

4/20/2022<0.0020<0.0020<0.0020BED1

1/27/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1-DUP

1/27/2022<0.0020<0.0020<0.0020BED1

10/29/2021<0.0020<0.0020<0.0020BED1

8/2/2021<0.0020<0.0020<0.0020PT

8/2/2021

0.19

0.014

0.016

BED1

5/10/2021<0.0020<0.0020<0.0020BED1

2/12/2021<0.0020<0.0020<0.0020

BED1

11/18/2020<0.0020<0.0020<0.0020BED1

9/23/2020<0.0020<0.0020<0.0020PT

9/23/2020

0.21

0.021

0.022

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

9/23/2020<0.0020<0.0020<0.0020BED1

6/25/2020<0.0020<0.0020<0.0020

11/26/2019

0.20

0.022

0.016

<0.020<0.020<0.0020<0.0020<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.00890.00280.27

0.14

0.0026<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020

0.22

PFBA

0.10

HFPO-DA

ADONA

0.033 J

<0.0020

GAC installed 02/07/2020.
4/6/2009

0.25

Location: 51
7/6/2016<0.0020

4/7/2009

ND

Location: 52
4/7/2009

0.047

Non-response to sampling offer in Ongoing 2016 Program.

Location: 53
4/7/2009

ND

Non-response to sampling offer in Ongoing 2016 Program.

Location: 54
BED1

5/28/2024<0.0020<0.0020<0.0020BED1

2/29/2024<0.0020<0.0020<0.0020BED1

12/12/2023<0.0020<0.0020<0.0020PT

9/20/2023

0.059

0.00230.0088

BED1-DUP

9/20/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/20/2023<0.0020<0.0020<0.0020BED1

5/24/2023<0.0020<0.0020<0.0020

BED1

2/21/2023<0.0020<0.0020<0.0020BED1

11/7/2022<0.0020<0.0020<0.0020PT

8/31/2022

0.057

0.00220.0067BED1

8/31/2022<0.0020<0.0020<0.0020BED1

5/25/2022<0.0020<0.0020<0.0020

BED1-DUP

1/12/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 01/12/2022 - 5yr.
BED1

1/12/2022<0.0020<0.0020<0.0020

Carbon Changeout 01/12/2022 - 5yr.
BED1

12/8/2021<0.0020<0.0020<0.0020PT

9/1/2021

0.086

0.0022 J

0.0072

BED1

9/1/2021<0.0020<0.0020<0.0020BED1

4/7/2021<0.0020<0.0020<0.0020BED1

1/12/2021<0.0020<0.0020<0.0020BED1

10/5/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/28/2020

0.057

0.0028

0.012

BED1

7/28/2020<0.0020<0.0020<0.0020BED1

6/4/2020<0.0020<0.0020<0.0020BED1

1/27/2020<0.0020<0.0020<0.0020BED1

10/11/2019<0.0020<0.0020<0.0020PT

7/15/2019

0.088

0.00450.0094

BED1

7/15/2019<0.0020<0.0020<0.0020BED1

4/11/2019<0.0020<0.0020<0.0020BED1

1/22/2019<0.0020<0.0020<0.0020BED1

10/31/2018<0.0020<0.0020<0.0020PT

7/24/2018

0.066

0.0040

0.012

BED1

7/24/2018<0.0020<0.0020<0.0020BED1

4/23/2018<0.0020<0.0020<0.0020BED1

2/15/2018<0.0020<0.0020<0.0020

BED1

11/16/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PT

8/16/2017

0.071

0.00220.0093

BED1

8/16/2017<0.0020<0.0020<0.0020

BED1

6/20/2017<0.0020<0.0020<0.0020BED1

3/2/2017<0.0020<0.0020<0.0020-DUP

7/7/2016

0.081 J

0.0026 J

0.0053 B<0.020 U<0.020 U

0.0026 J

0.0057 B<0.020 U

0.016

0.005

<0.00200.0070

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

0.0023<0.0020 U

0.067

0.045

0.0022 B<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.020 U

0.0025<0.0020 U

0.075

0.049

0.0025 B<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.020<0.0200.00680.0029

0.078

0.035

<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/20/2016.
7/7/2016

0.092 J

GAC installed 10/20/2016.
4/7/2009

0.053

Location: 55
9/1/2016

0.08

PWS connection 05/01/2017.
4/7/2009

0.048

Location: 56-DUP

3/23/2021

0.055

Declined treatment offer. Permanent bottled water.
3/23/2021

0.065

0.00200.0083Declined treatment offer. Permanent bottled water.

-DUP

7/14/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/14/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

4/9/2009

ND

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate

PFOA

4/9/2009

0.028

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 57
Non-response to sampling offer in Ongoing 2016 Program.

Location: 58
BED1

6/11/2024<0.0020<0.0020<0.0020BED1

2/28/2024<0.0020<0.0020<0.0020

BED1-DUP

12/4/2023<0.0020<0.0020<0.0020BED1

12/4/2023<0.0020<0.0020<0.0020PT

9/19/2023

0.068

0.0029

0.013

BED1

9/19/2023<0.0020<0.0020<0.0020BED1

6/22/2023<0.0020<0.0020<0.0020BED1

3/7/2023<0.0020<0.0020<0.0020BED1

11/28/2022<0.0020<0.0020<0.0020PT

8/24/2022

0.061

0.00230.0076BED1

8/24/2022<0.0020<0.0020<0.0020BED1

5/18/2022<0.0020<0.0020<0.0020

BED1

1/19/2022<0.0020<0.0020<0.0020

Carbon Changeout 01/19/2022 - 5yr.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/27/2021

0.058

0.00230.0090BED1

8/27/2021<0.0020<0.0020<0.0020

BED1

6/21/2021<0.0020<0.0020<0.0020BED1

3/23/2021<0.0020<0.0020<0.0020BED1

12/7/2020<0.0020<0.0020<0.0020

BED1-DUP

12/7/2020<0.0020<0.0020<0.0020BED1

9/14/2020<0.0020<0.0020<0.0020PT

9/14/2020

0.060

0.0023 J

0.010

BED1

6/24/2020<0.0020<0.0020<0.0020BED1

2/12/2020<0.0020<0.0020<0.0020BED1

10/24/2019<0.0020<0.0020<0.0020PT

8/26/2019

0.075

0.00260.0089BED1

8/26/2019<0.0020<0.0020<0.0020

BED1-DUP

5/16/2019<0.0020<0.0020<0.0020BED1

5/16/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/20/2019<0.0020<0.0020<0.0020BED1

12/3/2018<0.0020<0.0020<0.0020PT

9/20/2018

0.074

0.0027

0.013

BED1

9/20/2018<0.0020<0.0020<0.0020BED1

6/18/2018<0.0020<0.0020<0.0020BED1

2/15/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Carbon Changeout 12/18/2017 - Fe.
BED1

11/16/2017<0.0020<0.0020<0.0020PT

8/16/2017

0.077

0.003

0.013

BED1

8/16/2017<0.0020<0.0020<0.0020BED1

6/7/2017<0.0020<0.0020<0.0020

BED1-DUP

6/7/2017<0.0020<0.0020<0.0020BED1

3/2/2017<0.0020<0.0020<0.0020

7/13/2016

0.094 J

0.0034 J

0.017 J

0.00540.019<0.020 UJ<0.020 UJ

0.0022 J<0.0020 UJ 0.062 J

0.033 J

0.0036 J

0.0023 J<0.0020 UJ<0.0020 UJ<0.0020 UJ

GAC installed 10/19/2016.
4/9/2009

0.071

Location: 59
PT

7/28/2023

0.14

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/28/2023<0.0020<0.0020<0.0020BED1

5/19/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 05/19/2022 - 5yr.
BED1

3/15/2022<0.0020<0.0020<0.0020BED1

12/13/2021<0.0020<0.0020<0.0020BED1

9/21/2021<0.0020<0.0020<0.0020PT

9/21/2021

0.18

0.0058

0.027

BED1

6/28/2021<0.0020<0.0020<0.0020BED1

3/5/2021<0.0020<0.0020<0.0020BED1

12/2/2020<0.0020<0.0020<0.0020PT

9/2/2020

0.16

0.0043

0.021

BED1

9/2/2020<0.0020<0.0020<0.0020BED1

6/22/2020<0.0020<0.0020<0.0020BED1

2/14/2020<0.0020<0.0020<0.0020BED1

11/11/2019<0.0020<0.0020<0.0020PT

9/5/2019

0.19

0.00730.026

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

BED1

9/5/2019<0.0020<0.0020<0.0020BED1

5/23/2019<0.0020<0.0020<0.0020BED1

3/4/2019<0.0020<0.0020<0.0020BED1

12/5/2018<0.0020<0.0020<0.0020BED1

8/21/2018<0.0020<0.0020<0.0020<0.0040PT

8/21/2018

0.22

0.00630.023

0.0077BED1

6/1/2018<0.0020<0.0020<0.0020BED1

3/14/2018<0.0020<0.0020<0.0020BED1

12/5/2017<0.0020<0.0020<0.0020BED1

9/29/2017<0.0020<0.0020<0.0020PT

9/29/2017

0.22

0.0094

0.028

BED1

6/23/2017<0.0020<0.0020<0.0020

BED1-DUP

6/23/2017<0.0020<0.0020<0.0020-DUP

8/11/2016

0.26

0.017 J

0.021

<0.020<0.0200.00720.00550.2

0.11<0.0020<0.0020<0.0020<0.0020<0.0100.007 J

0.023

<0.020<0.0200.00740.00520.19

0.11<0.0020<0.0020<0.0020<0.0020<0.0075

ADONA

GAC installed 02/07/2017.
8/11/2016

0.26

GAC installed 02/07/2017.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate
4/9/2009

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.27

Location: 60
BED1

6/24/2024<0.0020<0.0020<0.0020BED1

3/15/2024<0.0020<0.0020<0.0020

BED1

12/18/2023<0.0020<0.0020<0.0020PT

9/18/2023

0.24

0.015

0.021

BED1

9/18/2023<0.0020<0.0020<0.0020

BED1

8/20/2021<0.0020<0.0020<0.0020PT

8/20/2021

0.20

0.0074

0.014

BED1

5/26/2021<0.0020<0.0020<0.0020BED1

3/5/2021<0.0020<0.0020<0.0020BED1

11/11/2020<0.0020<0.0020<0.0020PT

9/14/2020

0.19

0.0076 J

0.014

BED1

9/14/2020<0.0020<0.0020<0.0020BED1

6/24/2020<0.0020<0.0020<0.0020BED1

2/5/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

10/23/2019<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 09/19/2019 - Fe.
BED1

8/5/2019<0.0020<0.0020<0.0020PT

8/5/2019

0.26

0.0089

0.015

BED1

4/10/2019<0.0020<0.0020<0.0020BED1

1/16/2019<0.0020<0.0020<0.0020<0.0040

0.017

0.025

Carbon Changeout 04/12/2018 - Fe.
PT

1/16/2019

0.27

0.011 B

Carbon Changeout 04/12/2018 - Fe.
BED1

3/29/2018<0.0020<0.0020<0.0020PT

9/28/20170.2

0.00730.01

BED1

9/28/2017<0.0020<0.0020<0.0020BED1

6/28/2017<0.0020<0.0020<0.0020

BED2

3/27/2017<0.0020<0.0020<0.0020

Elevated results for this sample suggest that an incorrect port may have been sampled and results should be used with caution.
BED1

3/27/2017

0.2 J

0.0069 J

0.011 J

Elevated results for this sample suggest that an incorrect port may have been sampled and results should be used with caution.
7/12/20160.24 J

0.007

0.011

<0.0020<0.0020<0.020<0.0200.0045

0.012

0.21

0.14

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 12/13/2016.
4/9/2009

0.18

Location: 61
BED1

6/4/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/29/2024<0.0020<0.0020<0.0020

BED1

11/20/2023<0.0020<0.0020<0.0020BED1

8/29/2023<0.0020<0.0020<0.0020PT

8/29/2023

0.057

0.0031

0.012

BED1

6/5/2023<0.0020<0.0020<0.0020BED1

3/9/2023<0.0020<0.0020<0.0020

BED1

11/22/2022<0.0020<0.0020<0.0020PT

9/14/2022

0.055

0.0028

0.011

BED1

9/14/2022<0.0020<0.0020<0.0020BED1

6/13/2022<0.0020<0.0020<0.0020BED1

2/28/2022<0.0020<0.0020<0.0020BED1

12/1/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 11/10/2021 - 5yr.
PT

8/3/2021

0.056

0.0032

0.012

BED1

8/3/2021<0.0020<0.0020<0.0020BED1

5/4/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/9/2021<0.0020<0.0020<0.0020BED1

11/10/2020<0.0020<0.0020<0.0020BED1

9/3/2020<0.0020<0.0020<0.0020

BED1-DUP

9/3/2020<0.0020<0.0020<0.0020PT

9/3/2020

0.053

0.0025

0.010

BED1

6/22/2020<0.0020<0.0020<0.0020BED1

3/5/2020<0.0020<0.0020<0.0020BED1

10/22/2019<0.0020<0.0020<0.0020PT

7/30/2019

0.058

0.00240.0094

BED1

7/30/2019<0.0020<0.0020<0.0020BED1

4/24/2019<0.0020<0.0020<0.0020BED1

2/11/2019<0.0020<0.0020<0.0020BED1

11/12/2018<0.0020<0.0020<0.0020PT

8/14/2018

0.063

0.0040

0.016

BED1

8/14/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate

BED1

5/14/2018

BED1

5/14/2018

PT

5/14/2018

PT

2/28/2018

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.010<0.0020<0.0020<0.0020<0.010<0.00040<0.00040

0.000990.00061

0.048

0.028

0.00540.0019<0.00040<0.00040<0.00040<0.020<0.0200.0031<0.0020

0.048

0.024

0.025

0.0077<0.0020<0.0020<0.0020

0.037

0.020

February-March 2018 branched and linear study sample.
BED1

2/28/2018<0.0020<0.0020<0.0020

BED1

11/16/2017<0.0020<0.0020<0.0020BED1

8/17/2017<0.0020<0.0020<0.0020PT

8/17/2017

0.066

0.0033

0.013

BED1

6/22/2017<0.0020<0.0020<0.0020BED1

3/27/2017<0.0020<0.0020<0.0020

8/10/2016

0.065

1.3

0.013

GAC installed 12/01/2016.
4/9/2009

0.064

Location: 62
BED1

5/31/2024<0.0020<0.0020<0.0020

BED1

1/23/2024<0.0020<0.0020<0.0020

BED1

10/23/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/8/2023

0.034

0.0087

0.027

BED1

8/8/2023<0.0020<0.0020<0.0020

BED1-DUP

5/15/2023<0.0020<0.0020<0.0020BED1

5/15/2023<0.0020<0.0020<0.0020BED1

2/16/2023<0.0020<0.0020<0.0020BED1

11/9/2022<0.0020<0.0020<0.0020PT

9/1/2022

0.037

0.0061

0.021

BED1

9/1/2022<0.0020<0.0020<0.0020BED1

5/31/2022<0.0020<0.0020<0.0020BED1

2/10/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/10/2022 - 5yr.
BED1

11/30/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.057

0.011 J

0.029

BED1

8/30/2021<0.0020<0.0020<0.0020BED1

6/10/2021<0.0020<0.0020<0.0020BED1

2/16/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

BED1

11/30/2020<0.0020<0.0020<0.0020PT

8/19/2020

0.039

0.0082

0.022

BED1

8/19/2020<0.0020<0.0020<0.0020BED1

6/12/2020<0.0020<0.0020<0.0020BED1

2/7/2020<0.0020<0.0020<0.0020BED1

11/1/2019<0.0020<0.0020<0.0020BED1

8/30/2019<0.0020<0.0020<0.0020PT

8/30/2019

0.055

0.013

0.028

BED1

5/21/2019<0.0020<0.0020<0.0020BED1

2/8/2019<0.0020<0.0020<0.0020BED1

11/12/2018<0.0020<0.0020<0.0020PT

8/1/2018

0.054

0.0097 B

0.019

BED1

8/1/2018<0.0020<0.0020<0.0020PT

5/8/2018<0.010BED1

5/8/2018<0.010

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

5/8/2018<0.0020<0.0020<0.0020BED1

5/8/2018<0.0020<0.0020<0.0020PT

2/23/2018

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.00040<0.00040

0.00250.00086

0.031

0.018

<0.00040<0.00040<0.00040<0.00040<0.00040<0.020<0.0200.002<0.0020

0.034

0.018

<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeA

0.022

PFBA

HFPO-DA

ADONA

0.016

February-March 2018 branched and linear study sample.
BED1

2/23/2018<0.0020<0.0020<0.0020

BED1-DUP

12/12/2017<0.0020<0.0020<0.0020BED1

12/12/2017<0.0020<0.0020<0.0020BED1

8/18/2017<0.0020<0.0020<0.0020

BED1-DUP

8/18/2017<0.0020<0.0020<0.0020PT

8/18/2017

0.053

0.0092

0.016

BED1

6/14/2017<0.0020 UJ <0.0020<0.0020 UJ

BED2

3/2/2017<0.0020<0.0020<0.0020 UJ

BED1

3/2/2017

0.0035<0.0020<0.0020

6/30/2016

0.063

0.012

0.023

<0.0020<0.0020

GAC installed 10/06/2016.
4/9/2009

0.13

Location: 63
4/22/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Page 72 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

5/25/2022<0.0020<0.0020<0.0020

3/17/2021<0.0020<0.0020<0.0020

7/11/2016<0.0020<0.0020<0.0020

4/13/2009

ND

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 64
4/12/2021<0.0020<0.0020<0.0020

7/22/2016<0.0020<0.0020<0.0020

4/13/2009

ND

Location: 65
4/13/2009

0.045

Non-response to sampling offer in Ongoing 2016 Program.

Location: 66
BED1

6/11/2024<0.0020<0.0020<0.0020BED1

2/5/2024<0.0020<0.0020<0.0020BED1

10/24/2023<0.0020<0.0020<0.0020PT

8/7/2023

0.11

0.00210.0027BED1

8/7/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

BED1

5/4/2023<0.0020<0.0020<0.0020BED1

2/2/2023<0.0020<0.0020<0.0020

BED1

10/20/2022<0.0020<0.0020<0.0020BED1

8/10/2022<0.0020<0.0020<0.0020PT

8/10/2022

0.13<0.0020<0.0020BED1

5/3/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

1/31/2022<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 11/22/2021 - 5yr.
BED1

11/2/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.081

0.00240.0026BED1

8/23/2021<0.0020<0.0020<0.0020BED1

6/1/2021<0.0020<0.0020<0.0020BED1

2/24/2021<0.0020<0.0020<0.0020

BED1-DUP

11/24/2020<0.0020<0.0020<0.0020

BED1

11/24/2020

0.0021<0.0020<0.0020BED1

9/10/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/10/2020

0.096<0.00200.0020BED1

6/26/2020<0.0020<0.0020<0.0020BED1

2/24/2020<0.0020<0.0020<0.0020

BED1

11/18/2019<0.0020<0.0020<0.0020PT

9/13/20190.11<0.0020<0.0020BED1

9/13/2019<0.0020<0.0020<0.0020BED1

4/30/2019<0.0020<0.0020<0.0020BED1

2/1/2019<0.0020<0.0020<0.0020BED1

11/6/2018<0.0020<0.0020<0.0020BED1

8/1/2018<0.0020<0.0020<0.0020PT

8/1/2018

0.088<0.0020<0.0020BED1

4/26/2018<0.0020<0.0020<0.0020

BED1

2/20/2018<0.0020<0.0020<0.0020BED1

12/14/2017<0.0020<0.0020<0.0020PT

8/25/2017

0.1<0.00200.0056

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED18/25/2017<0.0020<0.0020<0.0020BED1

6/23/2017<0.0020<0.0020<0.0020BED2

3/8/2017

0.0024<0.0020<0.0020 UJ

BED1-DUP

3/8/2017<0.0020<0.0020<0.0020BED1

3/8/2017

0.0027<0.0020<0.0020

7/6/2016

0.1

0.0021<0.0020<0.020<0.0200.0021<0.0020<0.0200.00270.014<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.081

0.039

<0.0020<0.020<0.0020<0.0020

0.08

0.039

<0.0200.003<0.0020

0.054

0.029

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/11/2016.
-DUP

7/6/2016

0.1

GAC installed 10/11/2016.
4/13/2009

0.025

Location: 67
7/21/2016

0.062

PWS connection 01/11/2017. Well decommissioned 05/23/2023.
4/13/2009

0.073

Location: 68
BED1

5/28/2024<0.0020<0.0020<0.0020

BED1

2/20/2024<0.0020<0.0020<0.0020BED1

11/1/2023<0.0020<0.0020<0.0020BED1

8/14/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/14/2023

0.067 J

0.0056 J

0.0087 J

BED1

5/16/2023<0.0020<0.0020<0.0020BED1

2/7/2023<0.0020<0.0020<0.0020BED1

11/1/2022<0.0020<0.0020<0.0020BED1

8/11/2022<0.0020<0.0020<0.0020PT

8/11/2022

0.056

0.00270.0057BED1

5/3/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 03/01/2022 - 5yr.
BED1

1/18/2022<0.0020<0.0020<0.0020

BED1

10/19/2021<0.0020<0.0020<0.0020PT

7/22/2021

0.073

0.00500.0082

BED1

7/22/2021<0.0020<0.0020<0.0020

BED1-DUP

4/20/2021<0.0020<0.0020<0.0020

BED1

4/20/2021<0.0020<0.0020<0.0020

BED2

1/22/2021<0.0020<0.0020<0.0020

BED1-DUP

1/22/2021

0.0059 J

0.0050 J<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/22/2021<0.0020<0.0020<0.0020BED1

10/14/2020<0.0020<0.0020<0.0020BED1

8/6/2020<0.0020<0.0020<0.0020PT

8/6/2020

0.10

0.010

0.011

BED1

8/6/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
PT

8/6/2020

0.090

0.00980.010

Split sampling for method comparison.
BED1

6/9/2020<0.0020<0.0020<0.0020BED1

1/28/2020<0.0020<0.0020<0.0020BED1

10/15/2019<0.0020<0.0020<0.0020PT

7/23/2019

0.088

0.0069

0.011

BED1

7/23/2019<0.0020<0.0020<0.0020BED1

4/17/2019<0.0020<0.0020<0.0020BED1

2/5/2019<0.0020<0.0020<0.0020BED1

11/8/2018<0.0020<0.0020<0.0020PT

7/25/2018

0.072

0.00520.013<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

7/25/2018<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

4/25/2018<0.0020<0.0020<0.0020BED1

2/16/2018<0.0020<0.0020<0.0020

BED1

11/17/2017<0.0020<0.0020<0.0020BED1

8/16/2017<0.0020<0.0020<0.0020PT

8/16/2017

0.083

0.0048

0.015

BED1

6/20/2017<0.0020<0.0020<0.0020BED1

3/24/2017<0.0020<0.0020<0.0020

7/7/2016

0.093 J

0.0036 J

0.0031 B<0.020 U<0.020 U

0.00340.0025

0.068

0.049

<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U

0.25

0.051 J

0.028

<0.020<0.0200.014

0.00630.34

0.17

0.0033<0.0020<0.0020<0.0020<0.00200.26

0.022 J

0.029

<0.020 UJ<0.020 UJ

0.014

0.00630.35

0.17

0.0033 J<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/24/2016.
4/13/2009

0.061

Location: 69
8/10/2016

Declined treatment offer.
-DUP

8/10/2016

Declined treatment offer.
4/13/2009

0.17

Location: 70
BED1

4/12/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/5/2024<0.0020<0.0020<0.0020BED1

10/5/2023<0.0020<0.0020<0.0020PT

7/7/2023

0.41

0.015

0.029

BED1

7/7/2023<0.0020<0.0020<0.0020BED1

4/6/2023<0.0020<0.0020<0.0020

BED1

1/19/2023<0.0020<0.0020<0.0020BED1

10/17/2022<0.0020<0.0020<0.0020BED1

8/8/2022<0.0020<0.0020<0.0020PT

8/8/2022

0.38

0.011 J

0.029

BED1

5/4/2022<0.0020<0.0020<0.0020BED1

2/3/2022<0.0020<0.0020<0.0020BED1

11/9/2021<0.0020<0.0020<0.0020PT

8/25/2021

0.40

0.012

0.033

BED1

8/25/2021<0.0020<0.0020<0.0020

BED1

4/20/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/1/2021<0.0020<0.0020<0.0020BED1

10/6/2020<0.0020<0.0020<0.0020PT

8/3/2020

0.45

0.011

0.027

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 07/27/2020 - 5yr.
BED1

8/3/2020<0.00200.0039<0.0020

Split sampling for method comparison. Carbon Changeout 07/27/2020 - 5yr.
BED1-DUP

8/3/2020<0.0020<0.0020<0.0020

Split sampling for method comparison. Carbon Changeout 07/27/2020 - 5yr.
BED1

8/3/2020<0.002<0.002<0.002

Carbon Changeout 07/27/2020 - 5yr.
PT

8/3/2020

0.48

0.012 J

0.028

Split sampling for method comparison. Carbon Changeout 07/27/2020 - 5yr.
BED2

6/9/2020<0.0020<0.0020<0.0020BED1

6/9/2020

0.21<0.00200.0044

BED2

1/28/2020<0.0020<0.0020<0.0020BED1

1/28/2020

0.019<0.0020<0.0020

BED2

10/15/2019<0.0020<0.0020<0.0020BED1

10/15/2019

0.015<0.0020<0.0020PT

7/24/2019

0.47

0.0097

0.022

BED2

7/24/2019<0.0020<0.0020<0.0020BED1

7/24/2019

0.051<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

BED1

4/16/2019

0.013<0.0020<0.0020BED1

1/29/20190.00490.0042<0.0020BED1

11/6/2018

0.0034<0.0020<0.0020PT

7/26/2018

0.54

0.0089

0.021

BED2

7/26/2018<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0040 UJ

BED1

7/26/2018

0.0032<0.0020<0.00200.0056

BED1

4/26/2018

0.0037<0.0020<0.0020

BED1

2/20/2018<0.0020<0.0020<0.0020BED1

12/5/2017<0.0020<0.0020<0.0020PT

8/18/2017

0.52

0.0091

0.019

BED1

8/18/2017<0.0020<0.0020<0.0020BED2

6/14/2017<0.0020<0.0020<0.0020BED1

6/14/2017

0.002 J

<0.0020<0.0020 UJ

BED2

3/27/2017<0.0020<0.0020<0.0020 UJ

BED1

3/27/2017

0.0025<0.0020<0.0020

ADONA

0.046

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

11/29/2016<0.0020<0.0020<0.0020<0.020<0.020BED1

11/29/2016<0.0020<0.0020<0.0020<0.0208/9/2016

0.48<0.0020

0.018

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.00200.0023<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.020<0.0200.00430.00350.41<0.020 UJ<0.020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ <0.0020 UJ <0.0020 UJ

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.22<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020 UJ

0.0020 J

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
BED1-DUP

8/9/2016<0.0050

Split sampling for method comparison.
BED1

8/9/2016<0.0020BED1

8/9/2016<0.0050<0.0020

Split sampling for method comparison.
8/9/2016

0.5

BED2

8/9/2016<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1-DUP

5/18/2016<0.0050BED1

5/18/2016<0.0050

BED2

2/26/2016<0.0050

BED1-DUP

2/26/2016<0.0050BED1

2/26/2016<0.0050BED1

11/6/2015<0.0050

BED1-DUP

11/6/2015<0.0050

11/6/2015

0.49

0.0088

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

8/18/2015<0.0050

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 07/22/2015 - 5yr.
BED1-DUP

8/18/2015<0.0050

Carbon Changeout 07/22/2015 - 5yr.
BED1

5/18/2015<0.0050

BED1-DUP

5/18/2015<0.0050

BED1-DUP

2/20/2015<0.0050BED1

2/20/2015<0.0050

BED2

2/20/2015<0.0050

BED2

11/26/2014<0.0050

BED1-DUP

11/26/2014<0.0050

BED1

11/26/2014<0.0050

11/26/2014

0.43

BED2-DUP

8/29/2014<0.0050

BED2

8/29/2014<0.0050

BED2-DUP

5/19/2014<0.0050

BED2

5/19/2014<0.0050

BED2

2/21/2014<0.0050

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate

PFOA

BED2-DUP

2/21/2014<0.0050

10/25/2013

0.43

BED2

10/25/2013<0.0050BED2

8/28/2013

ND

BED1-DUP

8/28/2013

ND

BED1

8/28/2013

NQ

BED1-DUP

5/21/2013

ND

BED1

5/21/2013

ND

BED2

3/6/2013

ND

BED1-DUP

3/6/2013

ND

BED1

3/6/2013

ND

BED1-DUP

11/16/2012

ND

BED1

11/16/2012

ND

11/16/2012

0.61

BED1-DUP

8/29/2012

ND

BED1

8/29/2012

ND

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate

PFOA

BED1-DUP

5/16/2012

ND

BED2

5/16/2012

ND

BED1

5/16/2012

ND

BED1-DUP

3/1/2012

ND

BED1

3/1/2012

ND

BED1

11/21/2011

ND

11/21/2011

0.43

BED2

11/21/2011

ND

BED1-DUP

11/21/2011

ND

BED1-DUP

8/23/2011

ND

BED1

8/23/2011

ND

5/18/2011

0.44

BED1-DUP

5/18/2011

ND

BED1

5/18/2011

ND

BED1-DUP

3/10/2011

ND

BED1

3/10/2011

ND

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate

PFOA

BED1-DUP

11/11/2010

ND

BED1

11/11/2010

ND

BED1-DUP

9/8/2010

ND

BED1

9/8/2010

ND

9/8/2010

0.53

BED1-DUP

6/11/2010

ND

BED1

6/11/2010

ND

BED1-DUP

3/4/2010

ND

BED1

3/4/2010

ND

BED1-DUP

11/12/2009

ND

BED1

11/12/2009

ND

BED1-DUP

9/2/2009

ND

BED1

9/2/2009

ND

BED2

6/17/2009

ND

BED1

6/17/2009

ND

6/5/2009

0.42

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 06/15/2009.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate
4/13/2009

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.45

Location: 71
4/30/2018<0.0020

4/14/2009

ND<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 72
3/25/2024<0.0020<0.0020

4/11/2022<0.0020<0.0020 UJ <0.0020

2/25/2021<0.0020<0.0020<0.0020

7/12/2016<0.0020<0.0020<0.0020

4/15/2009

ND

Location: 73-DUP

5/9/2022<0.0020<0.0020<0.0020

3/15/2021<0.0020<0.0020<0.0020

3/15/2021<0.0020<0.0020<0.0020

7/12/2016<0.0020<0.0020<0.0020

4/15/2009

ND

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/20/2024<0.0020<0.0020<0.0020BED1

2/12/2024<0.0020<0.0020<0.0020BED1

11/13/2023<0.0020<0.0020<0.0020PT

9/11/2023

0.11

0.00540.0025NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 74

Carbon Changeout 09/11/2023 - 5yr.
BED1

9/11/2023<0.0020<0.0020<0.0020

Carbon Changeout 09/11/2023 - 5yr.
BED1

5/8/2023<0.0020<0.0020<0.0020

BED1

1/23/2023<0.0020<0.0020<0.0020BED1

10/31/2022<0.0020<0.0020<0.0020BED1

8/15/2022<0.0020<0.0020<0.0020PT

8/15/2022

0.11

0.00800.0034BED1

5/16/2022<0.0020<0.0020<0.0020

BED1

2/21/2022<0.0020<0.0020<0.0020

BED1

11/29/2021<0.0020<0.0020<0.0020PT

9/13/2021

0.082

0.00660.0024BED1

9/13/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/7/2021<0.0020<0.0020<0.0020BED1

3/8/2021<0.0020<0.0020<0.0020

BED1-DUP

3/8/2021<0.0020<0.0020<0.0020

BED1

11/16/2020<0.0020<0.0020<0.0020PT

9/3/2020

0.091

0.00700.0032

BED1

9/3/2020<0.0020<0.0020<0.0020BED1

6/23/2020<0.0020<0.0020<0.0020BED1

3/3/2020<0.0020<0.0020<0.0020

BED1-DUP

11/26/2019<0.0020<0.0020<0.0020

BED1

11/26/2019<0.0020<0.0020<0.0020PT

9/4/2019

0.095

0.00730.0059BED1

9/4/2019<0.0020<0.0020<0.0020BED1

5/29/2019<0.0020<0.0020<0.0020BED1

1/30/2019<0.0020<0.0020<0.0020BED1

11/7/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

8/6/2018<0.0020<0.0020<0.0020PT

8/6/2018

0.097

0.00630.0045

3/9/2018

0.092

0.00590.0043<0.020<0.020<0.00200.00250.1

0.062

0.0029<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0085<0.020 U<0.020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 05/02/2018.
4/15/2009

0.054

Location: 75
8/11/2016<0.0020

4/17/2009

0.15

Location: 76
PRE

6/27/2022

0.0024<0.0020<0.0020

POST

6/27/2022<0.0020<0.0020<0.0020POST

6/2/2021<0.0020<0.0020<0.0020PRE

6/2/2021<0.0020<0.0020<0.0020

7/7/2016<0.0020 U<0.0020 U<0.0020 U

4/17/2009

ND<0.0020<0.0020

Location: 77
BED1

4/18/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/25/2024<0.0020<0.0020<0.0020BED1

8/31/2023<0.0020<0.0020<0.0020PT

8/31/2023

0.15

0.060

0.095

BED1

5/25/2023<0.0020<0.0020<0.0020BED1

2/16/2023<0.0020<0.0020<0.0020PT

11/10/2022

0.14

0.012

0.029

BED1

11/9/2022<0.0020<0.0020<0.0020

BED1

2/21/2022<0.0020<0.0020<0.0020BED1

6/29/2020<0.0020<0.0020<0.0020

12/20/2019

0.16

0.00970.033<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020

PFBS

0.017

PFHxS

PFHxA

PFHpA

0.0032

0.18

0.091

PFDA

0.0058PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020

0.15

PFBA

0.071

HFPO-DA

ADONA

0.010

<0.0020

GAC installed 03/04/2020.
4/17/2009

0.24

Location: 78
6/17/2024

0.0049<0.0020

4/11/2022

0.0046<0.0020 UJ <0.0020

3/4/2021

0.0055<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

7/12/2016

0.0022 J<0.0020<0.0020<0.020<0.0204/20/2009

ND<0.0020<0.0020<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.013

0.0045<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 79
9/19/2016<0.0020

4/20/2009

ND

Location: 80
BED1

5/29/2024<0.0020<0.0020<0.0020

BED1

2/21/2024<0.0020<0.0020<0.0020BED1

10/16/2023<0.0020<0.0020<0.0020PT

8/21/2023

0.26

0.021

0.030

BED1

8/21/2023<0.0020<0.0020<0.0020BED1

4/24/2023<0.0020<0.0020<0.0020BED1

1/30/2023<0.0020<0.0020<0.0020BED1

10/24/2022<0.0020<0.0020<0.0020PT

8/15/2022

0.18

0.018

0.023

BED1

8/15/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/11/2022<0.0020<0.0020BED1

2/8/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 02/08/2022 - 5yr.
BED1

10/19/2021<0.0020<0.0020<0.0020PT

7/21/2021

0.24

0.017

0.024

BED1

7/21/2021<0.0020<0.0020<0.0020BED1

4/13/2021<0.0020<0.0020<0.0020BED1

11/11/2020<0.0020<0.0020<0.0020BED1

6/22/2020<0.0020<0.0020<0.0020BED1

3/17/2020<0.0020<0.0020<0.0020BED1

12/4/2019<0.0020<0.0020<0.0020PT

9/18/2019

0.19

0.021

0.028

BED1-DUP

9/18/2019<0.0020<0.0020<0.0020BED1

9/18/2019<0.0020<0.0020<0.0020BED1

6/3/2019<0.0020<0.0020<0.0020

BED1

3/19/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

12/12/2018<0.0020<0.0020<0.0020PT

8/28/2018

0.23

0.012

0.026

0.0058BED1

8/28/2018<0.0020<0.0020<0.0020<0.0040BED1

5/10/2018<0.0020<0.0020<0.0020BED1

3/13/2018<0.0020<0.0020<0.0020BED1

12/5/2017<0.0020<0.0020<0.0020PT

9/20/2017

0.21

0.023

0.031

BED1

9/20/2017<0.0020<0.0020<0.0020

BED1

6/20/2017<0.0020<0.0020<0.0020BED1

3/3/2017<0.0020<0.0020<0.0020

8/31/2016

0.25

0.019

0.025

<0.0020<0.0020<0.020<0.020PFBS

0.0089PFHxS

0.0049

PFHxA

0.16

PFHpA

0.098

PFDA

<0.0020

PFUnA<0.0020

PFDoA<0.0020

PFTriA<0.0020

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

GAC installed 10/21/2016.
4/20/2009

0.24

Location: 81
BED1

6/13/2024<0.0020

Carbon Changeout 06/13/2024 - 5yr.
BED1

1/5/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/3/2023<0.0020<0.0020<0.0020BED1

7/7/2023<0.0020<0.0020<0.0020PT

7/7/2023

0.032

0.00220.0069BED1

4/10/2023<0.0020<0.0020<0.0020BED1

1/17/2023<0.0020<0.0020<0.0020BED1

10/12/2022<0.0020<0.0020<0.0020PT

7/20/2022

0.046

0.00230.011 J

BED1

7/20/2022<0.0020<0.0020<0.0020BED1

4/14/2022<0.0020<0.0020<0.0020BED1

1/18/2022<0.0020<0.0020<0.0020BED1

10/1/2021<0.0020<0.0020<0.0020PT

7/8/2021

0.050

0.00300.0098BED1

7/8/2021<0.0020<0.0020<0.0020BED1

4/7/2021<0.0020<0.0020<0.0020

BED1

1/20/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

10/13/2020<0.0020<0.0020<0.0020BED1

10/13/2020<0.0020<0.0020<0.0020PT

8/10/2020

0.063

0.0037

0.011

BED1

8/10/2020<0.0020<0.0020<0.0020BED1

8/10/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
PT

8/10/2020

0.054

0.0031

0.012

Split sampling for method comparison.
BED1

6/23/2020<0.0020<0.0020<0.0020BED1

2/5/2020<0.0020<0.0020<0.0020BED1

10/24/2019<0.0020<0.0020<0.0020BED1

7/31/2019<0.0020<0.0020<0.0020

Carbon Changeout 05/22/2019 - Fe.
PT

7/31/2019

0.083

0.0032

0.011

Carbon Changeout 05/22/2019 - Fe.
BED2

4/24/2019<0.0020<0.0020<0.0020BED1

4/24/2019

0.041<0.00200.0064BED2

2/14/2019<0.0020<0.0020<0.0020BED1

2/14/2019

0.033

0.00220.0064

BED1

11/14/2018

0.050

0.00220.0081

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED2

11/14/2018<0.0020<0.0020<0.0020BED1

8/21/2018

0.026<0.00200.0047PT

8/21/2018

0.048

0.00270.0086

BED2

8/21/2018<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED2

5/17/2018<0.0020<0.0020<0.0020BED1

5/17/2018

0.024<0.00200.0051BED2

3/19/2018<0.0020<0.0020<0.0020

BED1

3/19/2018

0.044

0.00250.0094

BED2

12/14/2017<0.0020<0.0020<0.0020BED1

12/14/2017

0.044<0.00200.0097BED2

8/14/2017<0.0020<0.0020<0.0020PT

8/14/2017

0.04

0.00230.0094BED1

8/14/2017

0.034<0.00200.0096

1/11/20170.057 J

0.0031 B

0.013 J

<0.020 UJ<0.020 UJ<0.0020 UJ<0.0020 UJ 0.049 J

0.024 J

0.0037 J<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

0.0024 B

0.013<0.020<0.020<0.0020<0.00200.023

0.0033<0.0020<0.0020<0.00200.0021

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 04/10/2017.
-DUP

1/11/2017

0.055

0.048

GAC installed 04/10/2017.
4/20/2009

0.074

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 82
5/21/20090.14

Non-response to sampling offer in Ongoing 2016 Program.
4/29/2009

0.14 B

Location: 83
5/15/2023<0.0020<0.0020<0.0020

4/21/2021<0.0020<0.0020<0.0020

8/3/2016<0.0020<0.0020<0.0020

5/5/2009

ND<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 84
3/28/2022<0.0020<0.0020<0.0020

9/20/2019<0.0020<0.0020<0.0020

5/5/2009

0.085<0.0040

Location: 85
7/5/2022<0.0020<0.0020<0.0020PRE

5/7/2021<0.0020<0.0020<0.0020

PRE-DUP

5/7/2021<0.0020<0.0020<0.0020

6/30/2016<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate
5/7/2009

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

ND

Location: 86
5/7/2009

ND

Non-response to sampling offer in Ongoing 2016 Program.

Location: 87
3/2/2020

0.13

0.015

0.0045<0.020<0.0200.00350.0036

0.18

0.088

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.17

0.074

0.019

<0.0020

Treatment incomplete/in progress - bottled water.
5/7/2009

0.12

Location: 88
5/7/2009

0.10

Non-response to sampling offer in Ongoing 2016 Program.

Location: 89
8/6/2019<0.0020

5/7/2009

ND<0.0020<0.0020<0.0040

Location: 90
5/8/2009

0.085

PWS according to homeowner.

Location: 91
BED1

4/16/2024<0.0020<0.0020<0.0020BED1

1/17/2024<0.0020<0.0020<0.0020BED1

10/17/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/27/2023

0.083

0.00590.0066

BED1

7/27/2023<0.0020<0.0020<0.0020BED1

5/2/2023<0.0020<0.0020<0.0020BED1

1/17/2023<0.0020<0.0020<0.0020BED1

10/17/2022<0.0020<0.0020<0.0020PT

8/8/2022

0.090

0.0048 J

0.0089BED1

8/8/2022<0.0020<0.0020<0.0020BED1

4/28/2022<0.0020<0.0020<0.0020BED1

2/1/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/01/2022 - 5yr.
BED1

11/8/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.080

0.00330.0065BED1

8/23/2021<0.0020<0.0020<0.0020BED1

6/3/2021<0.0020<0.0020<0.0020BED1

3/11/2021<0.0020<0.0020<0.0020

BED1

11/17/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/22/2020<0.0020<0.0020<0.0020PT

9/22/2020

0.058

0.00210.0039BED1

6/23/2020<0.0020<0.0020<0.0020BED1

3/9/2020<0.0020<0.0020<0.0020

BED1

11/25/2019<0.0020<0.0020<0.0020PT

8/23/2019

0.071

0.00210.0053

BED1

8/23/2019<0.0020<0.0020<0.0020BED1

5/2/2019<0.0020<0.0020<0.0020BED1

3/1/2019<0.0020<0.0020<0.0020BED1

12/4/2018<0.0020<0.0020<0.0020PT

7/31/2018

0.080<0.00200.0044

BED1

7/31/2018<0.0020<0.0020<0.0020BED1

4/25/2018<0.0020<0.0020<0.0020BED1

2/15/2018<0.0020<0.0020<0.0020

BED1

11/17/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/17/2017<0.0020<0.0020<0.0020PT

8/17/2017

0.089

0.00310.0043

BED1

6/7/2017<0.0020<0.0020<0.0020BED1

3/24/2017<0.0020<0.0020<0.0020

7/6/2016

0.11

0.00380.0059NEtFOSAA NMeFOSAA<0.020<0.020PFBS

0.0097 J

PFHxS

PFHxA

PFHpA

<0.0020

0.094

0.046

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/12/2016.
5/8/2009

0.063

Location: 92
BED1

5/30/2024<0.0020<0.0020<0.0020BED1

3/14/2024<0.0020<0.0020<0.0020BED1

12/5/2023<0.0020<0.0020<0.0020

BED1

9/20/2023<0.0020<0.0020<0.0020PT

9/20/2023

0.054

0.00250.0092

BED1

6/15/2023<0.0020<0.0020<0.0020BED1

3/23/2023<0.0020<0.0020<0.0020BED1

12/6/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/26/2022<0.0020<0.0020<0.0020PT

9/26/2022

0.059

0.00200.0079BED1

6/28/2022<0.0020<0.0020<0.0020BED1

2/3/2022<0.0020<0.0020<0.0020PT

8/3/2021

0.075

0.00220.0090

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.059

0.044

PFDA

0.0024

PFUnA

0.0023

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA

0.0020<0.0020

Analyzed for 18 PFAS compounds for completeness. All results are on the Chemours Chambers Works website.
3/9/2021

0.063

0.00200.0074GAC installed 07/12/2021.
5/13/2009

0.066

Location: 93
5/13/2009

ND

Non-response to sampling offer in Ongoing 2016 Program.

Location: 94
BED1

5/28/2024<0.0020<0.0020<0.0020

BED1

2/20/2024<0.0020<0.0020<0.0020BED1

11/14/2023<0.0020<0.0020<0.0020BED1

8/17/2023<0.0020<0.0020<0.0020PT

8/17/2023

0.18

0.00680.0061

BED1

6/1/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/14/2023<0.0020<0.0020<0.0020BED1

12/7/2022<0.0020<0.0020<0.0020PT

9/1/2022

0.13

0.00680.0077BED1

9/1/2022<0.0020<0.0020<0.0020BED1

5/17/2022<0.0020<0.0020<0.0020BED1

2/22/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 12/15/2021 - 5yr.
BED1

11/29/2021<0.0020<0.0020<0.0020PT

9/2/2021

0.10

0.0060 J

0.014

BED1

9/2/2021<0.0020<0.0020<0.0020BED1

5/18/2021<0.0020<0.0020 UJ <0.0020

BED1

2/25/2021<0.0020<0.0020<0.0020

BED1

10/20/2020<0.0020<0.0020<0.0020BED1

8/19/2020<0.0020<0.0020<0.0020PT

8/19/2020

0.096

0.00520.0096BED1

6/11/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/11/2020<0.0020<0.0020<0.0020BED1

11/1/2019<0.0020<0.0020<0.0020PT

8/30/2019

0.094

0.0035

0.005

BED1

8/30/2019<0.0020<0.0020<0.0020BED1

5/30/2019<0.00200.0066<0.0020BED1

3/1/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 01/08/2019 - Fe.
BED1

11/29/2018<0.0020<0.0020<0.0020PT

9/19/2018

0.088

0.00370.0034

BED1

9/19/2018<0.0020<0.0020<0.0020BED1

4/26/2018<0.0020<0.0020<0.0020<0.0040

Carbon Changeout 02/16/2018 - Fe.
BED1

2/16/2018<0.0020<0.0020<0.0020

BED2

11/27/2017<0.0020<0.0020<0.0020

BED1

11/27/2017<0.00200.0098<0.0020PT

8/25/2017

0.11

0.0025 B<0.0020BED1

8/25/2017<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/22/2017<0.0020<0.0020<0.0020

BED1-DUP

1/30/2017<0.0020<0.0020<0.0020BED1

1/30/2017<0.0020<0.0020<0.0020

7/6/2016

0.063

0.00340.0025NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

0.0021

0.12

0.048

PFDA

0.0021

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/19/2016.
5/20/2009

0.059

Location: 95
BED1

6/13/2024<0.0020<0.0020<0.0020

BED2

1/25/2024<0.0020<0.0020<0.0020BED1

1/25/2024

0.0028<0.0020<0.0020BED1

12/7/2023<0.0020<0.0020<0.0020PT

8/31/2023

0.12

0.0066

0.016

BED1

8/31/2023<0.0020<0.0020<0.0020

BED2

6/19/2023<0.0020<0.0020<0.0020BED1

6/19/2023

0.0020<0.0020<0.0020BED1

3/15/2023<0.0020<0.0020<0.0020

BED1

11/21/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/21/2022

0.10

0.0025

0.013

BED1

7/21/2022<0.0020<0.0020<0.0020BED1

5/10/2022<0.0020<0.0020<0.0020BED1

2/10/2022<0.0020<0.0020<0.0020

BED1

11/22/2021<0.0020<0.0020<0.0020PT

9/13/2021

0.050

0.0041

0.013

BED1-DUP

9/13/2021<0.0020<0.0020<0.0020BED1

9/13/2021<0.0020<0.0020<0.0020BED1

4/16/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020BED1

11/5/2020<0.0020<0.0020<0.0020BED1

8/31/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.078

0.0054

0.028

BED1

6/19/2020<0.0020<0.0020<0.0020BED1

2/13/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/13/2020 - Fe.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/29/2019<0.0020<0.0020<0.0020PT

8/22/2019

0.082

0.00250.0099BED1

8/22/2019<0.0020<0.0020<0.0020BED1

5/3/2019<0.0020<0.0020<0.0020BED1

3/4/2019<0.0020<0.0020<0.0020

BED1

11/29/2018<0.0020<0.0020<0.0020PT

9/19/2018

0.11

0.0036

0.022

BED1

9/19/2018<0.0020<0.0020<0.0020BED1

4/30/2018<0.0020<0.0020<0.0020BED1

2/26/2018<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

11/16/2017<0.0020<0.0020<0.0020PT

8/17/2017

0.1

0.00330.013

BED1-DUP

8/17/2017<0.0020<0.0020<0.0020BED1

8/17/2017<0.0020<0.0020<0.0020

8/8/2017

0.11

0.00330.011 J

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020 UJ<0.0020<0.0020

0.073

0.037

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

6/8/2017<0.0020<0.0020PFNA<0.0020

NEtFOSAA NMeFOSAA<0.020 UJ<0.020 UJ

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.032

0.014

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONAResults for this sample may be results for a different location due to mislabeling.
BED1

5/3/2017<0.0020 UJ <0.0020<0.0020 UJ

BED2-DUP

5/3/2017<0.0020<0.0020<0.0020 UJ

BED2

5/3/2017<0.00200.0026<0.0020 UJ

BED1

3/2/2017

0.0027<0.0020<0.0020

Results do not meet operational trend of BED1>BED2.
BED2

3/2/2017

0.1

0.0023

0.011

Results do not meet operational trend of BED1>BED2.
6/30/2016

0.038

0.00210.0063<0.020<0.020Sample from this well location may be mislabeled. GAC installed 10/05/2016.
5/21/2009

0.083

Location: 96
BED1

6/13/2024<0.0020<0.0020<0.0020-DUP

3/11/2024<0.0020<0.0020<0.0020BED1

3/11/2024<0.0020<0.0020<0.0020BED1

12/7/2023<0.0020<0.0020<0.0020BED1

8/31/2023<0.0020<0.0020<0.0020PT

8/31/2023

0.084

0.0061

0.034

BED1

6/19/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/15/2023<0.0020<0.0020<0.0020

BED1

11/21/2022<0.0020<0.0020<0.0020PT

7/21/2022

0.15

0.0037

0.029

BED1

7/21/2022<0.0020<0.0020<0.0020BED1

5/10/2022<0.0020<0.0020<0.0020BED1

2/10/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

11/22/2021<0.0020<0.0020<0.0020BED1

9/13/2021<0.0020<0.0020<0.0020PT

9/13/2021

0.077

0.0051

0.030

BED1

4/16/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020BED1

11/5/2020<0.0020<0.0020<0.0020BED1

8/31/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.10

0.0037

0.022

BED1

6/19/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

2/13/2020<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 02/13/2020 - Fe.
BED1

10/29/2019

0.0029<0.0020<0.0020BED1

8/22/2019

0.0024<0.0020<0.0020PT

8/22/2019

0.083

0.0030

0.014

BED1

5/3/2019

0.0031<0.0020<0.0020BED1

3/4/2019

0.0023<0.0020<0.0020

BED1

11/29/2018

0.0046<0.0020<0.0020BED1

9/19/2018

0.013<0.0020<0.0020PT

9/19/2018

0.14

0.0042

0.023

PT

5/8/2018<0.010BED1

5/8/2018<0.010BED1

4/16/2018

PT

2/26/2018

0.0036<0.0020<0.0040<0.0020<0.00040<0.00039

0.00250.00091

0.10

0.056

0.00053<0.00039<0.00040<0.00039<0.00040

0.060

0.039

<0.00039<0.00039

0.00220.00089

0.10

0.054

0.00055<0.00039<0.00040<0.00040<0.00039

0.056

0.036

February-March 2018 branched and linear study sample.
BED2

2/26/2018

0.12

0.00490.017

Results do not meet operational trend of BED1>BED2.
BED1

2/26/2018

0.01<0.0020<0.0020

Results do not meet operational trend of BED1>BED2.
PT-DUP

2/26/2018

February-March 2018 branched and linear study sample.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleBED2

Date
11/16/2017

PFOA

PFOS

0.16

0.0059PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.02

Results do not meet operational trend of BED1>BED2.
BED1

11/16/2017

0.005<0.0020<0.0020

Results do not meet operational trend of BED1>BED2.
PT

8/17/2017

0.17

0.0058

0.031

BED1

8/17/2017<0.0020<0.0020<0.0020BED1

6/8/2017<0.0020<0.0020<0.0020BED1

3/2/2017<0.0020<0.0020<0.0020-DUP

10/3/2016

0.16

0.00390.026<0.020<0.020<0.0020<0.0020

0.084

0.042

<0.0020<0.0020<0.0020<0.0020<0.00200.00420.031<0.020<0.020<0.0020<0.00200.086 J

0.043

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 11/08/2016.
10/3/2016

0.16

GAC installed 11/08/2016.
5/21/2009

0.15

Location: 97
BED1

6/13/2024<0.0020BED1

3/11/2024<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

10/31/2023<0.0020<0.0020<0.0020

Carbon Changeout 10/31/2023 - 5yr.
PT

8/31/2023

0.064

0.00240.0094BED1

8/31/2023<0.0020<0.0020<0.0020BED1

6/19/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/15/2023<0.0020<0.0020<0.0020

BED1

11/21/2022<0.0020<0.0020<0.0020

BED1

7/21/2022<0.0020<0.0020<0.0020PT

7/21/2022

0.061<0.00200.0079BED1

5/10/2022<0.0020<0.0020<0.0020BED1

2/10/2022<0.0020<0.0020<0.0020

BED1

11/22/2021<0.0020<0.0020<0.0020BED1

9/13/2021<0.0020<0.0020<0.0020PT

9/13/2021

0.062

0.00220.0090BED1

4/16/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020BED1

11/5/2020<0.0020<0.0020<0.0020BED1

8/31/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.064

0.00200.0081BED1

6/19/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

2/13/2020<0.0020<0.0020<0.0020BED1

10/29/2019<0.0020<0.0020<0.0020BED1

8/22/2019<0.0020<0.0020<0.0020PT

8/22/2019

0.076

0.0023

0.011

BED1

5/3/2019<0.0020<0.0020<0.0020BED1

3/4/2019<0.0020<0.0020<0.0020

BED1

11/29/2018<0.0020<0.0020<0.0020PT

9/19/2018

0.073

0.0023

0.012

BED1

9/19/2018<0.0020<0.0020<0.0020

6/8/2017

0.11 J

0.00270.015 J

<0.020 UJ<0.020 UJ<0.0020<0.0020

0.073

0.035

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.00200.00320.012<0.020<0.0200.018<0.0020

0.072

0.033

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 04/18/2018.
6/30/2016

0.083

Sample from this well location may be mislabeled.
5/21/2009

0.057

Location: 98
8/10/2016<0.0020

5/21/2009

ND<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

1/25/2023<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 99
BED1<0.0020

Replacement well installed (Regulatory Location ID #699). Not qualified so GAC removed 05/18/2023. Well decommissioned according to NJ Data Miner.
BED1

10/20/2022<0.0020<0.0020<0.0020PT

7/18/2022

0.046

0.020

0.032

BED1

7/18/2022<0.0020<0.0020<0.0020BED1

4/14/2022<0.0020<0.0020<0.0020

Carbon Changeout 02/24/2022 - 5yr.
BED1

1/20/2022<0.0020<0.0020<0.0020

BED1

10/18/2021<0.0020<0.0020<0.0020PT

7/22/2021

0.043

0.019

0.028

BED1

7/22/2021<0.0020<0.0020<0.0020BED1

4/29/2021<0.0020<0.0020<0.0020BED1

2/4/2021<0.0020<0.0020<0.0020BED1

10/29/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.033

0.0081

0.021

BED1

8/31/2020<0.0020<0.0020<0.0020BED1

6/16/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/10/2020<0.0020<0.0020<0.0020BED1

10/30/2019<0.0020<0.0020<0.0020BED1

8/27/2019<0.0020<0.0020<0.0020PT

8/27/2019

0.065

0.021

0.033

BED1

5/15/2019<0.0020<0.0020<0.0020BED1

3/15/2019<0.0020<0.0020<0.0020BED1

12/10/2018<0.0020<0.0020<0.0020BED1

9/5/2018<0.0020<0.0020<0.0020PT

9/5/2018

0.059

0.011

0.030

BED1

6/5/2018<0.0020<0.0020<0.0020

BED1-DUP

3/6/2018<0.0020<0.0020<0.0020BED1

3/6/2018<0.0020<0.0020<0.0020BED1

10/31/2017<0.0020<0.0020<0.0020BED2

9/7/2017

0.073

0.022

0.035

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Results do not meet operational trend of PT>BED1>BED2.
BED1

9/7/2017<0.0020<0.00200.0034

Results do not meet operational trend of PT>BED1>BED2.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
PT

Date

PFOA

PFOS

9/7/2017

0.094

0.003

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020

0.064

0.037

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.0049Results do not meet operational trend of PT>BED1>BED2.
BED1

6/14/2017<0.0020<0.0020<0.0020BED1

3/17/2017<0.0020<0.0020<0.0020

7/14/2016

0.097

0.021

0.036

<0.020<0.0200.00380.012<0.0020

GAC installed 11/07/2016.
5/21/2009

0.18

Location: 100
BED1

6/13/2024<0.0020<0.0020<0.0020BED1

3/11/2024<0.0020<0.0020<0.0020BED1

12/7/2023<0.0020<0.0020<0.0020BED1

8/31/2023<0.0020<0.0020<0.0020PT

8/31/2023

0.057

0.00270.012

BED1-DUP

6/19/2023<0.0020<0.0020<0.0020BED1

6/19/2023<0.0020<0.0020<0.0020BED1

3/15/2023<0.0020<0.0020<0.0020

BED1

11/21/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/21/2022

0.063

0.0021

0.013

BED1

7/21/2022<0.0020<0.0020<0.0020BED1

5/10/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 03/03/2022 - 5yr.
BED1

2/10/2022<0.0020<0.0020<0.0020

BED1

11/22/2021<0.0020<0.0020<0.0020BED1

9/13/2021<0.0020<0.0020<0.0020PT

9/13/2021

0.097

0.0028

0.011

BED1

4/16/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020BED1

11/5/2020<0.0020<0.0020<0.0020BED1

8/31/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.073

0.00270.0089BED1

6/19/2020<0.0020<0.0020<0.0020BED1

2/13/2020<0.0020<0.0020<0.0020BED1

10/29/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/22/2019

0.079

0.00270.0083

BED1

8/22/2019<0.0020<0.0020<0.0020BED1

5/3/2019<0.0020<0.0020<0.0020BED1

3/4/2019<0.0020<0.0020<0.0020

BED1

11/29/2018<0.0020<0.0020<0.0020BED1

9/19/2018<0.0020<0.0020<0.0020PT

9/19/2018

0.10

0.0029

0.011

BED1

4/30/2018<0.0020<0.0020<0.0020BED1

2/26/2018<0.0020<0.0020<0.0020

BED1

11/16/2017<0.0020<0.0020<0.0020PT

8/17/2017

0.098

0.0035

0.011

BED1

8/17/2017<0.0020<0.0020<0.0020

BED1

6/20/2017<0.0020<0.0020<0.0020BED1

3/2/2017<0.0020<0.0020<0.0020

11/15/2016

0.14 J

0.0037 J

0.0085 J

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020 UJ<0.020 UJ

0.0022 J<0.0020 UJ 0.11 J

0.047 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

0.0022 J

GAC installed 12/09/2016.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate

PFOA

5/21/2009

0.065

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 101
5/27/20090.15

Non-response to sampling offer in Ongoing 2016 Program.

Location: 102
BED1

4/9/2024<0.0020<0.0020<0.0020BED1

1/5/2024<0.0020<0.0020<0.0020BED1

10/2/2023<0.0020<0.0020<0.0020PT

7/5/2023

0.041<0.00200.0063

BED1

7/5/2023<0.0020<0.0020<0.0020BED1

4/10/2023<0.0020<0.0020<0.0020BED1

1/16/2023<0.0020<0.0020<0.0020BED1

10/12/2022<0.0020<0.0020<0.0020PT

8/3/2022

0.035

0.0057

0.011

BED2

8/3/2022<0.0020<0.0020<0.0020BED1

8/3/2022

0.052<0.00200.0086

BED1

4/25/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

2/1/2022<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 12/21/2021 - 5yr.
BED1

11/2/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.062

0.00260.0099

BED1-DUP

8/23/2021<0.0020<0.0020<0.0020BED1

8/23/2021<0.0020<0.0020<0.0020BED1

6/4/2021<0.0020<0.0020<0.0020BED1

2/9/2021<0.0020<0.0020<0.0020BED1

11/10/2020<0.0020<0.0020<0.0020BED1

9/10/2020<0.0020<0.0020<0.0020PT

9/10/2020

0.050

0.00200.0089BED1

6/18/2020<0.0020<0.0020<0.0020BED1

3/5/2020<0.0020<0.0020<0.0020

BED1

11/21/2019<0.0020<0.0020<0.0020BED1

9/23/2019<0.0020<0.0020<0.0020PT

9/23/2019

0.071

0.00590.018

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/25/2019<0.0020<0.0020<0.0020

BED1

2/19/2019<0.0020<0.0020<0.0020

BED1-DUP

2/19/2019<0.0020<0.0020<0.0020

BED1-DUP

11/27/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 10/24/2018 - Fe.
BED1

11/27/2018<0.0020<0.0020<0.0020

Carbon Changeout 10/24/2018 - Fe.
BED1

8/21/2018<0.0020<0.0020<0.0020

BED1-DUP

8/21/2018<0.0020<0.0020<0.0020PT

8/21/2018

0.063

0.00240.0091

BED1

6/4/2018<0.0020<0.0020<0.0020BED1

2/15/2018<0.0020<0.0020<0.0020

BED1

11/16/2017<0.0020<0.0020<0.0020<0.0040

Carbon Changeout 08/30/2017 - Fe.
BED1

8/17/2017<0.0020<0.0020<0.0020PT

8/17/2017

0.062

0.003

0.012

BED2

6/8/2017<0.0020<0.0020<0.0020BED1

6/8/2017

0.0034<0.0020<0.0020BED1

3/3/2017<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
-DUP

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

7/13/2016

0.061 J

0.00270.01<0.020<0.0200.00250.01<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.002

<0.0020

0.049

0.026

0.0041<0.0200.002<0.0020

0.05

0.026

<0.020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

0.003

<0.0020<0.0020<0.00200.00450.0029<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 11/02/2016.
7/13/2016

0.064 J

GAC installed 11/02/2016.
5/27/2009

0.066

Location: 103-DUP

3/25/2024<0.0020<0.0020<0.0020

4/4/2022<0.0020<0.0020<0.0020

4/4/2022<0.0020<0.0020<0.0020

2/17/2021<0.0020 UJ <0.0020<0.0020 UJ

7/14/2016<0.0020<0.0020<0.0020

6/17/2009

ND<0.0020<0.0020

Location: 104
BED1-DUP

4/25/2024<0.0020

Carbon Changeout 04/25/2024 - 5yr.
BED1

4/25/2024<0.0020<0.0020<0.0020

Carbon Changeout 04/25/2024 - 5yr.
BED1

3/18/2024<0.0020<0.0020<0.0020BED1

12/4/2023<0.0020<0.0020<0.0020PT

8/30/2023

0.0085 J<0.0020 UJ 0.0043 J

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/30/2023<0.0020<0.0020<0.0020BED1

5/15/2023<0.0020<0.0020<0.0020BED1

12/1/2022<0.0020<0.0020<0.0020BED1

8/31/2022<0.0020<0.0020<0.0020PT

8/31/2022

0.049

0.0095

0.065

BED1

5/31/2022

0.0021<0.0020<0.0020BED2

5/31/2022<0.0020<0.0020<0.0020BED1

3/8/2022<0.0020<0.0020<0.0020BED1

11/11/2021<0.0020<0.0020<0.0020PT

8/25/2021

0.055

0.012

0.074

BED1

8/25/2021<0.0020<0.0020<0.0020BED1

6/3/2021<0.0020<0.0020<0.0020BED1

3/8/2021<0.0020<0.0020<0.0020BED1

12/3/2020<0.0020<0.0020<0.0020BED1

9/2/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/2/2020

0.048

0.0092

0.060

BED1

6/18/2020<0.0020<0.0020<0.0020BED1

12/16/2019<0.0020<0.0020<0.0020PT

9/13/2019

0.064

0.010

0.095

BED1

9/13/2019<0.0020<0.0020<0.0020BED1

5/16/2019<0.0020<0.0020<0.0020BED1

3/28/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 03/14/2019 - Fe.
BED1

12/10/2018<0.0020<0.0020<0.0020PT

8/15/2018

0.062

0.011

0.092

0.016

BED1

8/15/2018<0.0020<0.0020<0.0020<0.0040BED1

5/14/2018<0.0020<0.0020<0.0020BED1

5/14/2018<0.010PT

5/14/2018

0.011

PT

3/9/2018<0.00040<0.00040

0.00330.0030

0.064

0.028

0.017

0.00046<0.00040<0.00040<0.00040

0.051

0.031

February-March 2018 branched and linear study sample.
BED1

3/9/2018<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/19/2017<0.0020<0.0020<0.0020PT

9/8/2017

0.079

0.011

0.11

BED1

9/8/2017<0.0020<0.0020<0.0020

BED1

6/21/2017<0.0020<0.0020<0.0020

BED2

3/28/2017<0.0020<0.0020<0.0020BED1

3/28/2017

0.003<0.0020<0.0020

7/14/2016

0.11

0.01

0.14

NEtFOSAA NMeFOSAA<0.020<0.020PFBS

0.0047

PFHxS

PFHxA

PFHpA

0.0037

0.067

0.033

PFDA

0.019

PFUnA

<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 11/15/2016.
6/24/2009

0.38

Location: 105
6/29/2009

ND

Non-response to sampling offer in Ongoing 2016 Program.

Location: 106
7/8/2009

0.13

Non-response to sampling offer in Ongoing 2016 Program.

Location: 107
7/30/20090.29

Non-response to sampling offer in Ongoing 2016 Program.
-DUP

7/30/20090.28

Non-response to sampling offer in Ongoing 2016 Program.

Location: 108
BED1

4/17/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/25/2024<0.0020<0.0020<0.0020BED1

10/25/2023<0.0020<0.0020<0.0020BED1

9/5/2023<0.0020<0.0020<0.0020

BED1-DUP

9/5/2023<0.0020<0.0020<0.0020PT

9/5/2023

0.045<0.0020<0.0020BED1

5/23/2023<0.0020<0.0020<0.0020

BED1-DUP

2/20/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

2/20/2023<0.0020<0.0020<0.0020BED1

11/10/2022<0.0020<0.0020<0.0020PT

9/6/2022

0.039<0.0020<0.0020BED1

9/6/2022<0.0020<0.0020<0.0020BED1

5/31/2022<0.0020<0.0020<0.0020BED1

3/7/2022<0.0020<0.0020<0.0020

BED1

11/16/2021<0.0020<0.0020<0.0020

BED1-DUP

11/16/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PT

9/8/2021

0.043<0.0020<0.0020BED1

9/8/2021<0.0020<0.0020<0.0020BED1

5/17/2021<0.0020<0.0020<0.0020BED1

2/24/2021<0.0020<0.0020<0.0020BED1

11/11/2020<0.0020<0.0020<0.0020BED1

9/15/2020<0.0020<0.0020<0.0020PT

9/15/2020

0.042<0.0020<0.0020BED1

6/26/2020<0.0020<0.0020<0.0020

PRE-DUP

10/31/2019

0.041<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.16

0.067

<0.0020<0.020<0.0020<0.0020

0.15

0.066

<0.020<0.020<0.0020<0.00200.16<0.020 UJ<0.020 UJ

0.0025<0.0020<0.020<0.020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.14

0.067

0.046 J

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.13

0.066

0.050 J

<0.00200.068<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.15

0.071

0.057 J

<0.0020

0.14

0.048

<0.0020<0.0020<0.0020<0.0020<0.00200.0025<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/06/2020.
PRE

10/31/2019

0.041

GAC installed 01/06/2020.
POST

10/31/2019

0.040

GAC installed 01/06/2020.
8/31/2016

0.029

9/23/2009

NQ

Location: 109
5/3/2021<0.0020<0.0020<0.0020

8/26/2019<0.0020<0.0020<0.0020<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleDate
9/25/2009

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

ND

Location: 110-DUP

4/22/2024<0.0020<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

3/9/2021<0.0020<0.0020<0.0020

7/22/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/22/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

10/5/2009

ND<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 111-DUP

10/24/2023<0.0020<0.0020<0.0020

10/24/2023<0.0020<0.0020<0.0020

6/20/2022<0.0020<0.0020<0.0020

7/8/2016<0.0020<0.0020<0.0020

11/4/2009

ND<0.0020<0.0020

Location: 112
2/27/2023<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

1/31/2022<0.0020<0.0020<0.0020

7/1/2016<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 113
BED1

4/23/2024<0.0020<0.0020<0.0020BED1

2/5/2024<0.0020<0.0020<0.0020BED1

10/26/2023<0.0020<0.0020<0.0020BED1

8/29/2023<0.0020<0.0020<0.0020PT

8/29/2023

0.18<0.00200.0021BED1

5/24/2023<0.0020<0.0020<0.0020BED1

3/8/2023<0.0020<0.0020<0.0020

BED1

11/29/2022<0.0020<0.0020<0.0020

BED1

9/20/2022<0.0020<0.0020<0.0020PT

9/20/2022

0.15<0.0020<0.0020BED1

6/8/2022<0.0020<0.0020<0.0020BED1

3/2/2022<0.0020<0.0020<0.0020

Carbon Changeout 12/07/2021 - 5yr.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/11/2021<0.0020<0.0020<0.0020PT

8/26/2021

0.17<0.0020<0.0020BED1

8/26/2021<0.0020<0.0020<0.0020BED1

4/29/2021<0.0020<0.0020<0.0020BED1

2/5/2021<0.0020<0.0020<0.0020BED1

11/2/2020<0.0020<0.0020<0.0020

BED1-DUP

11/2/2020<0.0020<0.0020<0.0020BED1

9/2/2020<0.0020<0.0020<0.0020PT

9/2/2020

0.12<0.0020<0.0020BED1

6/19/2020<0.0020<0.0020<0.0020BED1

3/5/2020<0.0020<0.0020<0.0020

BED1

11/19/2019<0.0020<0.0020<0.0020BED1

9/16/2019<0.0020<0.0020<0.0020PT

9/16/20190.12<0.0020<0.0020BED1

4/12/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

1/29/2019<0.0020<0.0020<0.0020BED1

11/5/2018<0.0020<0.0020<0.0020BED1

7/30/2018<0.0020<0.0020<0.0020PT

7/30/2018

0.16<0.0020<0.0020BED1

5/2/2018<0.0020<0.0020<0.0020

BED1

2/21/2018<0.0020<0.0020<0.0020

BED1

11/16/2017<0.0020<0.0020<0.0020PT

9/7/2017

0.16<0.0020<0.0020BED1

9/7/2017<0.0020<0.0020<0.0020BED1

6/27/2017<0.0020<0.0020<0.0020BED1

3/27/2017<0.0020<0.0020<0.0020

BED1-DUP

12/29/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020BED1

12/29/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

BED2

12/29/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/6/2016

0.13<0.0020<0.0020<0.020<0.0200.0021 J<0.0020

0.13

0.078

<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 09/30/2016.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

3/7/2024<0.0020<0.0020<0.0020

3/13/2023<0.0020<0.0020<0.0020

7/11/2016<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 114<0.020<0.020<0.0020<0.0020<0.0020

Location: 115
BED1

6/19/2024<0.0020<0.0020<0.0020

BED1

3/20/2024<0.0020<0.0020<0.0020PT

9/11/2023

0.045<0.0020<0.0020BED1

9/11/2023<0.0020<0.0020<0.0020

BED1

6/21/2023<0.0020<0.0020<0.0020

BED1

12/19/2022<0.0020<0.0020<0.0020PT

9/12/2022

0.046<0.0020<0.0020BED1

9/12/2022<0.0020<0.0020<0.0020BED1

6/1/2022<0.0020<0.0020<0.0020BED1

3/14/2022<0.0020<0.0020<0.0020BED1

12/6/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

9/20/2021<0.0020<0.0020<0.0020PT

9/20/2021

0.033<0.0020<0.0020

BED1

6/21/2021<0.0020<0.0020<0.0020BED1

11/30/2020<0.0020<0.0020<0.0020BED1

6/23/2020<0.0020<0.0020<0.0020BED1

3/11/2020<0.0020<0.0020<0.0020

BED1

11/20/2019<0.0020<0.0020<0.0020PT

7/2/2019

0.013<0.0020<0.0020BED1

7/2/2019<0.0020<0.0020<0.0020-DUP

4/10/2019

0.026<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.038

0.02

<0.0020<0.020<0.0020<0.0020

0.04

0.019

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 06/21/2019.
4/10/2019

0.026

GAC installed 06/21/2019.
-DUP

7/11/2016

0.037<0.0020<0.0020<0.020<0.0200.0026 J<0.0020

0.05

0.025

<0.0020<0.0020<0.0020<0.0020<0.0020

7/11/2016

0.036<0.0020<0.0020<0.020<0.020<0.0020<0.0020

0.052

0.025

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 116
7/12/2016

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

0.0097 J<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.002

<0.00200.032

0.0083<0.0020<0.0200.002<0.00200.032

0.0086<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 117
7/12/2016

PWS according to homeowner.
-DUP

7/12/2016

0.011 JPWS according to homeowner.

Location: 118
7/15/2024<0.0020<0.0020<0.0020

11/30/2022<0.0020<0.0020<0.0020

11/30/2022<0.0020<0.0020<0.0020

7/14/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020-DUP

7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020POST

5/16/2022<0.0020<0.0020<0.0020PRE

5/16/2022<0.0020<0.0020<0.0020

2/25/2021<0.0020<0.0020<0.0020

2/25/2021<0.0020<0.0020<0.0020

7/14/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0083<0.0020<0.0020<0.0020<0.0020-DUP<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 119-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

3/9/2021<0.0020<0.0020<0.0020

7/14/2016<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 120<0.020<0.020<0.0020<0.0020<0.0020

Location: 121
BED1

11/5/2021

Replacement well installed (Regulatory Location ID #647). Not qualified so GAC removed 03/29/2022. Well decommissioned according to NJ Data Miner.
PT

8/24/2021

0.071

0.00340.0091BED1

8/24/2021<0.0020<0.0020<0.0020

BED1

6/21/2021<0.0020<0.0020<0.0020

BED1-DUP

3/22/2021<0.0020<0.0020<0.0020BED1

3/22/2021<0.0020<0.0020<0.0020BED1

11/11/2020<0.0020<0.0020<0.0020PT

9/3/2020

0.069

0.00330.0093BED1

9/3/2020<0.0020<0.0020<0.0020BED1

6/22/2020<0.0020<0.0020<0.0020BED1

2/17/2020<0.0020<0.0020<0.0020BED1

11/8/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/30/2019<0.0020<0.0020<0.0020PT

8/30/2019

0.08

0.0032

0.007

BED1

5/24/2019<0.0020<0.0020<0.0020BED1

3/15/2019<0.0020<0.0020<0.0020BED1

12/6/2018<0.0020<0.0020<0.0020PT

9/10/2018

0.080

0.00240.0063

BED1

9/10/2018<0.0020<0.0020<0.0020

BED1

6/21/2018<0.0020<0.0020<0.0020BED1

3/22/2018<0.0020<0.0020<0.0020

BED1

12/21/2017<0.0020<0.0020<0.0020PT

8/25/2017

0.088

0.0027 B

0.0059BED1

8/25/2017<0.0020<0.0020<0.0020

BED1

6/21/2017<0.0020<0.0020<0.0020BED1

3/27/2017<0.0020<0.0020<0.0020

7/14/2016

0.08

0.00250.0042NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.0020

0.045

0.027

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 12/27/2016.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 122
BED1

5/1/2023<0.0020<0.0020<0.0020BED1

3/15/2023<0.0020<0.0020<0.0020

BED1

12/22/2022<0.0020<0.0020<0.0020

BED1

7/21/2022<0.0020<0.0020<0.0020PT

7/21/2022

0.13<0.00200.0069BED1

5/11/2022<0.0020<0.0020<0.0020

Carbon Changeout 05/10/2022 - 5yr.
BED1

2/10/2022

0.0023<0.0020<0.0020

BED2

2/10/2022<0.0020<0.0020<0.0020BED1

11/12/2021<0.0020<0.0020<0.0020BED1

7/13/2021<0.0020<0.0020<0.0020

BED1-DUP

7/13/2021<0.0020<0.0020<0.0020PT

7/13/2021

0.21<0.00200.0041

BED1

4/5/2021<0.0020<0.0020<0.0020

BED1

1/19/2021<0.0020<0.0020<0.0020BED1

11/4/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

BED1

8/17/2020<0.0020<0.0020<0.0020PT

8/17/2020

0.19<0.00200.0053

BED1

6/18/2020<0.0020<0.0020<0.0020

BED1

2/19/2020<0.0020<0.0020<0.0020

BED1

11/15/2019<0.0020<0.0020<0.0020PT

9/12/2019

0.083

0.00200.0066BED1

9/12/2019<0.0020<0.0020<0.0020BED1

5/8/2019<0.0020<0.0020<0.0020BED1

3/14/2019<0.0020<0.0020<0.0020BED1

12/5/2018<0.0020<0.0020<0.0020BED1

8/27/2018<0.0020<0.0020<0.0020PT

8/27/2018

0.14<0.00200.0049BED1

5/1/2018<0.0020<0.0020<0.0020

BED1

2/21/2018<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

12/12/2017<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/20/2017

0.13<0.00200.0046BED1

9/20/2017<0.0020<0.0020<0.0020

7/21/2016

0.14<0.0020

0.003

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.0200.0048<0.0020

0.13

0.087

<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/16/2017.

Location: 123-DUP

3/12/2021<0.0020<0.0020<0.0020

3/12/2021<0.0020<0.0020<0.0020

7/22/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/23/2023<0.0020<0.0020<0.0020

4/4/2022<0.0020<0.0020<0.0020

8/10/2016<0.00200.0028<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/15/2023<0.0020<0.0020<0.0020

3/12/2021<0.0020<0.0020<0.0020

8/10/2016<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 124
8/3/2016

Location: 125

Location: 126

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 127
BED1

5/19/2022<0.0020

Carbon Changeout 03/09/2022 - 5yr. Home is going to be demolished. GAC removed 10/26/2022 at owner's request.
BED1

2/22/2022<0.0020<0.0020<0.0020

BED1

11/22/2021<0.0020<0.0020<0.0020PT

9/2/2021

0.053

0.0021 J

0.016

BED1

9/2/2021<0.0020<0.0020<0.0020BED1

4/30/2021<0.0020<0.0020<0.0020BED1

2/10/2021<0.0020<0.0020<0.0020BED1

11/2/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.054

0.0020

0.014

BED1

8/31/2020<0.0020<0.0020<0.0020BED1

6/17/2020<0.0020<0.0020<0.0020BED1

2/5/2020<0.0020<0.0020<0.0020BED1

10/24/2019<0.0020<0.0020<0.0020BED1

8/2/2019<0.0020<0.0020<0.0020PT

8/2/2019

0.069

0.0021

0.014

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/18/2019<0.0020<0.0020<0.0020BED1

2/8/2019<0.0020<0.0020<0.0020BED1

11/9/2018<0.0020<0.0020<0.0020BED1

8/7/2018<0.0020<0.0020<0.0020PT

8/7/2018

0.074

0.0020

0.013

BED1

5/8/2018

BED1

5/8/2018

PT

5/8/2018

BED1

3/16/2018<0.0020<0.0020<0.0020BED1

12/12/2017<0.0020<0.0020<0.0020PT

9/11/2017

0.073

0.0026

0.011

BED1

9/11/2017<0.0020<0.0020<0.0020

BED1

6/20/2017<0.0020<0.0020<0.0020BED1

3/27/2017<0.0020<0.0020<0.0020-DUP

9/26/2016

0.083

0.0053 J

0.0088NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.010<0.0020<0.0020<0.0020<0.010<0.020<0.020<0.0020<0.0020

0.072

0.034

0.0028<0.0020<0.0020<0.0020<0.0020

GAC installed 12/14/2016.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

9/26/2016

0.084

0.0021 J

0.0085<0.020<0.0200.016

0.0045<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.074

0.034

0.00270.0065<0.0020

0.057

0.025

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 12/14/2016.

Location: 128
11/15/2016

0.054

PWS connection 04/18/2017.

Location: 129
BED1

5/3/2024<0.0020<0.0020<0.0020BED1

1/31/2024<0.0020<0.0020<0.0020BED1

10/26/2023<0.0020<0.0020<0.0020PT

8/7/2023

0.063

0.0032

0.012

BED1

8/7/2023<0.0020<0.0020<0.0020BED1

5/4/2023<0.0020<0.0020<0.0020BED1

2/8/2023<0.0020<0.0020<0.0020BED1

11/10/2022<0.0020<0.0020<0.0020BED1

8/31/2022<0.0020<0.0020<0.0020PT

8/31/2022

0.057

0.0037

0.011

BED1

5/26/2022<0.0020<0.0020<0.0020

Carbon Changeout 03/23/2022 - 5yr.
BED1

2/28/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/29/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.057

0.0045

0.015

BED1

8/23/2021<0.0020<0.0020<0.0020BED1

6/4/2021<0.0020<0.0020<0.0020BED1

3/10/2021<0.0020<0.0020<0.0020BED1

11/11/2020<0.0020<0.0020<0.0020BED1

9/16/2020<0.0020<0.0020<0.0020

BED1-DUP

9/16/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.057

0.00380.0094

BED1

6/26/2020<0.0020<0.0020<0.0020BED1

3/16/2020<0.0020<0.0020<0.0020

BED1

11/25/2019<0.0020<0.0020<0.0020BED1

8/28/2019<0.0020<0.0020<0.0020PT

8/28/2019

0.066

0.0035

0.011

BED1

5/16/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

3/14/2019<0.0020<0.0020<0.0020BED1

12/6/2018<0.0020<0.0020<0.0020PT

8/24/2018

0.073

0.0030

0.011

BED1

8/24/2018<0.0020<0.0020<0.0020BED1

5/17/2018<0.0020<0.0020<0.0020BED1

3/22/2018<0.0020<0.0020<0.0020

BED1

12/21/2017<0.0020<0.0020<0.0020BED1

9/21/2017<0.0020<0.0020<0.0020

BED1-DUP

9/21/2017<0.0020<0.0020<0.0020PT

9/21/2017

0.073

0.004

0.011

BED1

6/28/2017<0.0020<0.0020<0.0020

12/14/2016

0.068 J

0.0046 J

0.0079 J<0.020 UJ<0.020 UJ<0.0020 UJ<0.0020 UJ 0.053 J

0.026 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

0.00450.0077<0.020<0.020<0.0020<0.0020

0.051

0.025

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 02/17/2017.
-DUP

12/14/2016

0.067

GAC installed 02/17/2017.

Location: 130
2/21/2022<0.0020<0.0020<0.0020

1/23/2017<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

1/23/2017<0.0020<0.0020<0.00200.021<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 131
3/7/2024

GAC installed 05/01/2024.

-DUP

3/21/2022

0.011<0.0020<0.0020

12/7/2020

0.0099<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.024

0.0060<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

12/7/2020

0.010<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.024

0.0065<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

2/3/2017

0.0021 J<0.0020 U<0.0020 U<0.020 U<0.020 UJ<0.0020 U<0.0020 U

0.0074<0.0020 U<0.0020 UJ<0.0020 UJ<0.0020 U<0.0020 U<0.0020 U

7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/16/2022<0.0020<0.0020<0.0020

3/17/2021<0.0020<0.0020<0.0020

2/3/2017<0.0020<0.0020<0.0020 U<0.020 UJ<0.020 UJ<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 UJ<0.0020 UJ<0.0020 U<0.0020 U

0.0038Location: 132

Location: 133
BED1-DUP

6/5/2024<0.0020<0.0020<0.0020BED1

6/5/2024<0.0020<0.0020<0.0020BED1

3/5/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/26/2023<0.0020<0.0020<0.0020BED1

8/3/2023<0.0020<0.0020<0.0020PT

8/3/2023

0.016<0.0020<0.0020

BED1

4/20/2023<0.0020<0.0020<0.0020BED1

1/25/2023<0.0020<0.0020<0.0020

BED1

10/20/2022<0.0020<0.0020<0.0020BED1

8/10/2022<0.0020<0.0020<0.0020PT

8/10/2022

0.014<0.0020<0.0020BED1

4/27/2022<0.0020<0.0020<0.0020BED1

1/18/2022<0.0020<0.0020<0.0020

BED1-DUP

1/18/2022<0.0020<0.0020<0.0020BED1

10/13/2021<0.0020<0.0020<0.0020PT

7/16/2021

0.013<0.0020<0.0020

BED1-DUP

7/16/2021<0.0020<0.0020<0.0020BED1

7/16/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

3/17/2021

0.039

0.0051 J

0.0023NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 06/23/2021.
-DUP

2/3/2017

0.0043 J<0.0020 U<0.0020 U<0.020 U<0.020 U<0.0020 U<0.0020 U

0.015

0.0031<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U

2/3/2017

0.0045 J<0.0020 U<0.0020<0.020 U<0.020 U<0.0020 U<0.0020 U

0.015

0.0031<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U

7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/16/2022<0.0020<0.0020<0.0020

3/16/2021<0.0020<0.0020<0.0020

2/3/2017<0.0020 U<0.0020 U<0.0020 U<0.020 U<0.020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U

Location: 134<0.0020<0.0020<0.0020<0.0020

Location: 135
BED1

5/7/2024<0.0020<0.0020<0.0020BED1

3/6/2024<0.0020<0.0020<0.0020

BED1

11/21/2023<0.0020<0.0020<0.0020PT

9/5/2023

0.086<0.00200.0047BED1

9/5/2023<0.0020<0.0020<0.0020BED1

6/12/2023<0.0020<0.0020<0.0020BED1

3/13/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/8/2022<0.0020<0.0020<0.0020PT

9/26/2022

0.074<0.00200.0043

BED1-DUP

9/26/2022<0.0020<0.0020<0.0020BED1

9/26/2022<0.0020<0.0020<0.0020BED1

4/25/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 03/15/2022 - 5yr.
BED1

1/31/2022<0.0020<0.0020<0.0020BED1

10/12/2021<0.0020<0.0020<0.0020

BED1

7/20/2021<0.0020<0.0020<0.0020PT

7/20/2021

0.066<0.00200.0029BED1

4/22/2021<0.0020<0.0020<0.0020

BED1

1/19/2021<0.0020<0.0020<0.0020

BED1-DUP

1/19/2021<0.0020<0.0020<0.0020BED1

11/4/2020<0.0020<0.0020<0.0020BED1

8/17/2020<0.0020<0.0020<0.0020PT

8/17/2020

0.073<0.00200.0038

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/25/2020<0.0020<0.0020<0.0020BED1

2/12/2020<0.0020<0.0020<0.0020BED1

11/11/2019<0.0020<0.0020<0.0020BED1

9/6/2019<0.0020<0.0020<0.0020PT

9/6/2019

0.091<0.00200.0034

BED1-DUP

9/6/2019<0.0020<0.0020<0.0020BED1

6/27/2019<0.0020<0.0020<0.0020BED1

3/25/2019<0.0020<0.0020<0.0020BED1

11/12/2018<0.0020<0.0020<0.0020PT

8/20/2018

0.10

0.00210.0034

BED1

8/20/2018<0.0020<0.0020<0.0020BED1

5/22/2018<0.0020<0.0020<0.0020

BED1

3/20/2018<0.0020<0.0020<0.0020BED2

12/12/2017<0.0020<0.0020<0.0020BED1

12/12/2017

0.12

0.00250.0039NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/20/2017<0.0020<0.0020<0.0020PT

9/20/2017

0.12

0.00260.0032

BED1

6/27/2017<0.0020<0.0020<0.0020

2/3/2017

0.13 J

0.0032 J

0.0031

NEtFOSAA NMeFOSAA<0.020 U<0.020 U

PFBS

0.0029

PFHxS

PFHxA

PFHpA

<0.0020 U

0.073

0.034

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 03/29/2017.

Location: 136
BED1

5/17/2024<0.0020<0.0020<0.0020BED1

2/8/2024<0.0020<0.0020<0.0020BED1

11/9/2023<0.0020<0.0020<0.0020PT

8/14/2023

0.064<0.00200.0041BED1

8/14/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

5/16/2023<0.0020<0.0020<0.0020BED1

2/28/2023<0.0020<0.0020<0.0020BED1

12/1/2022<0.0020<0.0020<0.0020BED1

9/27/2022<0.0020<0.0020<0.0020

Carbon Changeout 08/18/2022 - 5yr.
PT

9/27/2022

0.045<0.00200.0028Carbon Changeout 08/18/2022 - 5yr.
BED1

4/27/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/1/2022<0.0020<0.0020<0.0020BED1

11/3/2021<0.0020<0.0020<0.0020PT

8/17/2021

0.055<0.00200.0026BED1

8/17/2021<0.0020<0.0020<0.0020BED1

5/10/2021<0.0020<0.0020<0.0020BED1

2/12/2021<0.0020<0.0020<0.0020BED1

11/30/2020<0.0020<0.0020<0.0020BED1

8/3/2020<0.002<0.002<0.002PT

8/3/2020

0.052<0.0020.0035BED1

6/4/2020<0.0020<0.0020<0.0020BED1

1/29/2020<0.0020<0.0020<0.0020BED1

10/16/2019<0.0020<0.0020<0.0020PT

7/30/2019

0.046<0.00200.0026BED1

7/30/2019<0.0020<0.0020<0.0020BED1

4/22/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/11/2019<0.0020<0.0020<0.0020BED1

11/13/2018<0.0020<0.0020<0.0020BED1

8/28/2018<0.0020<0.0020<0.0020PT

8/28/2018

0.052<0.0020<0.0020

BED1

5/21/2018<0.0020<0.0020<0.0020BED1

3/14/2018<0.0020<0.0020<0.0020BED1

12/12/2017<0.0020<0.0020<0.0020PT

9/29/2017

0.055<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Carbon Changeout 08/23/2017 - Fe.
BED1

9/29/2017<0.0020<0.0020<0.0020

Carbon Changeout 08/23/2017 - Fe.
BED1

6/23/2017<0.0020<0.0020<0.0020

2/3/2017

0.045 J

<0.0020 U<0.0020 U<0.020 U<0.020 U<0.0020 U<0.0020 U

0.044

0.018

<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020 U<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/07/2017.

Location: 137-DUP

7/1/2024<0.0020<0.0020<0.0020

4/18/2022<0.0020<0.0020<0.0020

4/18/2022<0.0020<0.0020<0.0020

2/14/2017<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

3/25/2024<0.0020<0.0020<0.0020

3/25/2024<0.0020<0.0020<0.0020

4/4/2022<0.0020<0.0020<0.0020

3/12/2021<0.0020<0.0020<0.0020

2/14/2017<0.0020<0.0020<0.00200.017<0.0020<0.00200.020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 138-DUP<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 139
POST

6/1/2022

Permanent bottled water.
PRE

6/1/2022

Permanent bottled water.
POST

3/17/2021

0.00650.0070 J<0.0020PRE

3/17/2021

0.011<0.0020<0.0020

2/14/2017<0.0020<0.0020<0.0020

Location: 140
BED1

4/24/2024<0.0020<0.0020<0.0020BED1

1/22/2024<0.0020<0.0020<0.0020

BED1

10/18/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/1/2023

0.040

0.0079

0.013

BED1

8/1/2023<0.0020<0.0020<0.0020BED1

5/4/2023<0.0020<0.0020<0.0020BED1

2/1/2023<0.0020<0.0020<0.0020BED1

11/1/2022<0.0020<0.0020<0.0020PT

8/22/2022

0.049

0.011

0.016

BED1

8/22/2022<0.0020<0.0020<0.0020BED1

4/27/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 04/27/2022 - 5yr.
BED2

3/2/2022<0.0020<0.0020<0.0020BED1

3/2/2022

0.0021<0.0020<0.0020BED2

11/8/2021<0.0020<0.0020<0.0020BED1

11/8/2021

0.0053<0.0020<0.0020

BED1-DUP

11/8/2021

0.0042<0.0020<0.0020BED2

7/23/2021<0.0020<0.0020<0.0020PT

7/23/2021

0.049

0.011

0.017

BED1

7/23/2021

0.0056<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/5/2021

0.0045<0.0020<0.0020BED2

5/5/2021<0.0020<0.0020<0.0020BED1

2/10/2021

0.0065<0.0020<0.0020

BED2

2/10/2021<0.0020<0.0020<0.0020BED1

11/9/2020

0.0021<0.0020<0.0020BED1

9/9/2020<0.0020<0.0020<0.0020PT

9/9/2020

0.063

0.011

0.019

BED1

6/26/2020<0.0020<0.0020<0.0020BED1

3/11/2020<0.0020<0.0020<0.0020BED1

12/4/2019<0.0020<0.0020<0.0020BED1

9/13/2019<0.0020<0.0020<0.0020

BED1-DUP

9/13/2019<0.0020<0.0020<0.0020PT

9/13/2019

0.078

0.012

0.020

BED1

4/26/2019<0.0020<0.0020<0.0020BED1

2/15/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

11/13/2018<0.0020<0.0020<0.0020PT

9/17/2018

0.060

0.011

0.015

BED1

9/17/2018<0.0020<0.0020<0.0020BED1

6/15/2018<0.0020<0.0020<0.0020BED1

3/6/2018<0.0020<0.0020<0.0020BED1

12/15/2017<0.0020<0.0020<0.0020PT

9/29/2017

0.077

0.009

0.012

BED1

9/29/2017<0.0020<0.0020<0.0020

2/14/2017

0.088

0.01

0.014

<0.020<0.0200.01

0.00250.11

0.05<0.0020<0.0020<0.0020<0.0020<0.00200.11

0.00780.014<0.020<0.0200.0022<0.0020

0.068

0.034

<0.0020<0.0020<0.0020<0.0020<0.00200.11

0.00750.013<0.020<0.0200.0022<0.0020

0.065

0.033

<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 04/19/2017.

Location: 141
2/14/2017

Permanent bottled water.
-DUP

2/14/2017

Permanent bottled water.

Location: 142
BED1

6/5/2024<0.0020<0.0020<0.0020

BED1-DUP

1/31/2024<0.0020<0.0020<0.0020BED1

1/31/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/30/2023<0.0020<0.0020<0.0020BED1

7/11/2023<0.0020<0.0020<0.0020PT

7/11/2023

0.055<0.00200.0043

BED1

4/10/2023<0.0020<0.0020<0.0020

BED1-DUP

4/10/2023<0.0020<0.0020<0.0020BED1

1/16/2023<0.0020<0.0020<0.0020BED1

10/5/2022<0.0020<0.0020<0.0020PT

7/19/2022

0.054<0.00200.0039BED1

7/19/2022<0.0020<0.0020<0.0020BED1

4/13/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 03/10/2022 - 5yr.
BED1

1/19/2022<0.0020<0.0020<0.0020

BED1

10/19/2021<0.0020<0.0020<0.0020PT

8/2/2021

0.0056<0.0020<0.0020BED1

8/2/2021<0.0020<0.0020<0.0020BED1

5/4/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/4/2021<0.0020<0.0020<0.0020BED1

10/27/2020<0.0020<0.0020<0.0020PT

8/26/2020

0.053<0.00200.0042

BED1

8/26/2020<0.0020<0.0020<0.0020BED1

6/17/2020<0.0020<0.0020<0.0020BED1

2/5/2020<0.0020<0.0020<0.0020BED1

10/24/2019<0.0020<0.0020<0.0020

BED1

8/20/2019<0.0020<0.0020<0.0020PT

8/20/2019

0.068<0.00200.0037BED1

4/26/2019<0.0020<0.0020<0.0020BED1

2/25/2019<0.0020<0.0020<0.0020

BED1

11/27/2018<0.0020<0.0020<0.0020PT

8/2/2018

0.071<0.00200.0048BED1

8/2/2018<0.0020<0.0020<0.0020BED1

5/8/2018

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.010Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

5/8/2018<0.0020<0.0020PT

5/8/2018

BED1

2/22/2018<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

12/12/2017<0.0020<0.0020<0.0020PT

9/7/2017

0.13

0.006

0.031

BED1

9/7/2017<0.0020<0.0020<0.0020BED1

6/27/2017<0.0020<0.0020<0.0020

2/14/2017

0.082<0.00200.0023<0.020<0.020<0.0020<0.0020

0.059

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.010GAC installed 03/22/2017.

Location: 143

-DUP

-DUP

7/8/2024<0.0020<0.0020<0.0020

5/9/2022<0.0020<0.0020<0.0020

5/9/2022<0.0020<0.0020<0.0020

3/16/2021<0.0020<0.0020<0.0020

3/16/2021<0.0020<0.0020<0.0020

2/20/2017<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

11/1/2022<0.0020<0.0020<0.0020

11/1/2022<0.0020<0.0020<0.0020

2/20/2017<0.0020<0.0020<0.0020

5/8/2023<0.0020<0.0020<0.0020

2/20/2017<0.0020<0.0020<0.0020

5/15/2023<0.0020<0.0020<0.0020

3/9/2021<0.0020<0.0020<0.0020

2/20/2017<0.0020<0.0020<0.0020

4/22/2024<0.0020<0.0020<0.0020

4/22/2024<0.0020<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

3/16/2021<0.0020<0.0020<0.0020

2/20/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 144-DUP<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0022 B<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 145

Location: 146

Location: 147-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 148
2/20/2017<0.020<0.020<0.0020<0.0020<0.0020

Location: 149
BED1

5/30/2024<0.0020<0.0020<0.0020

BED1-DUP

3/14/2024<0.0020<0.0020<0.0020BED1

3/14/2024<0.0020<0.0020<0.0020

BED1-DUP

12/15/2023<0.0020<0.0020<0.0020BED1

12/15/2023<0.0020<0.0020<0.0020PT

9/6/2023

0.059

0.00440.0033BED1

9/6/2023<0.0020<0.0020<0.0020BED1

6/8/2023<0.0020<0.0020<0.0020

BED1-DUP

2/16/2023<0.0020<0.0020<0.0020BED1

2/16/2023<0.0020<0.0020<0.0020

BED1-DUP

11/2/2022<0.0020<0.0020<0.0020BED1

11/2/2022<0.0020<0.0020<0.0020

BED1-DUP

8/29/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/29/2022<0.0020<0.0020<0.0020PT

8/29/2022

0.059

0.00290.0027BED1

5/12/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 05/12/2022 - 5yr.
BED1-DUP

2/16/2022<0.0020<0.0020<0.0020BED1

2/16/2022<0.0020<0.0020<0.0020

BED1-DUP

11/17/2021<0.0020<0.0020<0.0020

BED1

11/17/2021<0.0020<0.0020<0.0020BED1

8/23/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.065

0.00600.0041BED1

5/24/2021<0.0020<0.0020<0.0020BED1

3/10/2021<0.0020<0.0020<0.0020

BED1

10/21/2020<0.0020<0.0020<0.0020PT

8/11/2020

0.064

0.00410.0029BED1

8/11/2020<0.0020<0.0020<0.0020BED1

6/5/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/5/2020<0.0020<0.0020<0.0020BED1

10/25/2019<0.0020<0.0020<0.0020PT

8/1/2019

0.072

0.00490.0037BED1

8/1/2019<0.0020<0.0020<0.0020BED1

4/23/2019<0.0020<0.0020<0.0020

BED1-DUP

2/15/2019<0.0020<0.0020<0.0020BED1

2/15/2019<0.0020<0.0020<0.0020

BED1-DUP

11/14/2018<0.0020<0.0020<0.0020BED1

11/14/2018<0.0020<0.0020<0.0020

BED1-DUP

9/17/2018<0.0020<0.0020<0.0020BED1

9/17/2018<0.0020<0.0020<0.0020PT

9/17/2018

0.065

0.00920.0048

BED1-DUP

6/25/2018<0.0020<0.0020<0.0020BED1

6/25/2018<0.0020<0.0020<0.0020

BED1-DUP

3/23/2018<0.0020<0.0020<0.0020BED1

3/23/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

12/15/2017<0.0020<0.0020<0.0020BED1

12/15/2017<0.0020<0.0020<0.0020PT

9/20/2017

0.072

0.00910.0064

BED1

9/20/2017<0.0020<0.0020<0.0020

2/20/2017

0.061

0.00830.0038<0.020<0.0200.00850.0036<0.0200.00770.0076<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0021<0.0020

0.057

0.031

<0.0020<0.0200.002<0.0020

0.056

0.032

<0.0200.0041<0.00200.034 B

0.018 B

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 04/21/2017.
-DUP

2/20/2017

0.06

GAC installed 04/21/2017.

Location: 150
2/20/2017

0.038 B

Replacement well installed (Regulatory Location ID #385). Not qualified so bottled water stopped.

Location: 151
BED1-DUP

6/6/2019<0.0020<0.0020<0.0020

PWS connection 06/13/2019. GAC removed 06/21/2019.
BED1

6/6/2019<0.0020<0.0020<0.0020

PWS connection 06/13/2019. GAC removed 06/21/2019.
BED1

2/1/2019<0.0020<0.0020<0.0020BED1

10/30/2018<0.0020<0.0020<0.0020BED1

7/13/2018<0.0020<0.0020<0.0020PT

7/13/2018

0.020<0.0020<0.0020BED1

4/30/2018<0.0020<0.0020<0.0020<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

2/20/20170.02 B<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0200.078

0.00740.018

0.0076

0.018

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.0082 B

0.005 B

<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.0200.014<0.00200.062<0.020<0.0200.013<0.0020

0.062

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.029<0.0020<0.0020<0.0020<0.0020<0.00200.028<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 11/21/2017.

Location: 152
2/27/2017

Location: 153
2/27/2017

PWS connection 04/06/2017.
-DUP

2/27/2017

0.077

PWS connection 04/06/2017.

Location: 154
BED1-DUP

5/22/2024<0.0020<0.0020<0.0020BED1

5/22/2024<0.0020<0.0020<0.0020BED1

2/2/2024<0.0020<0.0020<0.0020

BED1-DUP

10/23/2023<0.0020<0.0020<0.0020

BED1

10/23/2023<0.0020<0.0020<0.0020PT

7/19/2023

0.040

0.00270.0072

BED1

7/19/2023<0.0020<0.0020<0.0020BED1

4/17/2023<0.0020<0.0020<0.0020

BED1-DUP

4/17/2023<0.0020<0.0020<0.0020BED1

1/31/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

10/19/2022

0.078

0.0039

0.012

BED1

10/19/2022<0.0020<0.0020<0.0020BED1

8/11/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 08/09/2022 - 5yr.
BED1

6/29/2022<0.0020<0.0020<0.0020BED1

3/22/2022<0.0020<0.0020<0.0020

BED1-DUP

3/22/2022<0.0020<0.0020<0.0020BED1

12/9/2021<0.0020<0.0020<0.0020BED1

9/15/2021<0.0020<0.0020<0.0020

BED1-DUP

9/15/2021<0.0020<0.0020<0.0020PT

9/15/2021

0.055

0.00200.0084BED1

6/14/2021<0.0020<0.0020<0.0020

BED1-DUP

6/14/2021<0.0020<0.0020<0.0020BED1

3/12/2021<0.0020<0.0020<0.0020

BED1

11/19/2020<0.0020<0.0020<0.0020BED1

8/17/2020<0.0020<0.0020<0.0020PT

8/17/2020

0.055

0.00210.0073

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/4/2020<0.0020<0.0020<0.0020BED1

1/22/2020<0.0020<0.0020<0.0020PT

9/19/2019

0.060

0.00220.0069BED1

9/19/2019<0.0020<0.0020<0.0020

BED1-DUP

6/7/2019<0.0020<0.0020<0.0020BED1

6/7/2019<0.0020<0.0020<0.0020BED1

3/12/2019<0.0020<0.0020<0.0020BED1

11/28/2018<0.0020<0.0020<0.0020PT

9/13/2018

0.063

0.00240.0061BED1

9/13/2018<0.0020<0.0020<0.0020BED1

6/5/2018<0.0020<0.0020<0.0020BED1

3/23/2018<0.0020<0.0020<0.0020BED1

12/14/2017<0.0020<0.0020<0.0020PT

9/6/2017

0.062

0.00270.0059BED1

9/6/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

2/27/2017

0.059

0.00270.0053NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.051

0.025

PFDA
<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 04/03/2017.

Location: 155
BED1

5/30/2024<0.0020<0.0020<0.0020BED1

1/18/2024<0.0020<0.0020<0.0020

BED1-DUP

10/18/2023<0.0020<0.0020<0.0020

BED1

10/18/2023<0.0020<0.0020<0.0020PT

8/1/2023

0.043<0.0020<0.0020BED1

8/1/2023<0.0020<0.0020<0.0020BED1

4/26/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 04/26/2023 - 5yr.
BED1

2/15/2023<0.0020<0.0020<0.0020BED1

11/28/2022<0.0020<0.0020<0.0020BED1

9/15/2022<0.0020<0.0020<0.0020PT

9/15/2022

0.030<0.0020<0.0020BED1

6/1/2022<0.0020<0.0020<0.0020BED1

3/8/2022<0.0020<0.0020<0.0020

BED1

11/22/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/8/2021

0.022<0.0020<0.0020BED1

9/8/2021<0.0020<0.0020<0.0020BED1

6/24/2021<0.0020<0.0020<0.0020BED1

1/28/2021<0.0020<0.0020<0.0020

BED1-DUP

1/28/2021<0.0020<0.0020<0.0020BED1

10/13/2020<0.0020<0.0020<0.0020BED1

8/11/2020<0.0020<0.0020<0.0020PT

8/11/2020

0.018<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
PT

8/11/2020

0.018<0.0020<0.0020BED1

8/11/2020<0.0020<0.0020<0.0020

Split sampling for method comparison.
BED1

6/16/2020<0.0020<0.0020<0.0020BED1

2/28/2020<0.0020<0.0020<0.0020

BED1

11/19/2019<0.0020<0.0020<0.0020PT

9/13/20190.0094<0.0020<0.0020BED1

9/13/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/21/2019<0.0020<0.0020<0.0020

BED1-DUP

2/25/2019<0.0020<0.0020<0.0020BED1

2/25/2019<0.0020<0.0020<0.0020

BED1-DUP

12/3/2018<0.0020<0.0020<0.0020BED1

12/3/2018<0.0020<0.0020<0.0020PT

7/16/2018

0.0054<0.0020<0.0020BED1

7/16/2018<0.0020<0.0020<0.0020

BED1-DUP

4/18/2018<0.0020<0.0020<0.0020BED1

4/18/2018<0.0020<0.0020<0.0020

2/27/2017

0.015<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.00200.034

0.0084<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/07/2018.

Location: 156
4/8/2024<0.0020<0.0020<0.0020

6/1/2022<0.0020<0.0020<0.0020

3/4/2021<0.0020<0.0020<0.0020

2/27/2017<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

5/13/2021<0.0020<0.0020<0.0020

5/13/2021<0.0020<0.0020<0.0020

3/3/2017<0.0020<0.0020<0.0020<0.020<0.0203/3/2017<0.0020<0.0020<0.0020<0.0203/19/2021<0.0020<0.0020<0.0020

3/3/2017<0.0020<0.0020<0.0020

4/4/2022

0.0077<0.0020<0.0020

3/17/20170.01 J

3/17/2017

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020 UJ <0.0020 UJ<0.020 UJ<0.020 UJ<0.0020 UJ

0.01<0.0020<0.0020<0.020<0.0206/5/2023<0.0020<0.0020<0.0020

4/21/2021<0.0020<0.0020<0.0020

4/21/2021<0.0020<0.0020<0.0020

3/23/2017<0.0020<0.0020<0.0020<0.020<0.020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ 0.011 J

0.0052 J<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.00200.011

0.0053<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 157

-DUP

-DUP

Location: 158

Location: 159-DUP

Location: 160-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 161
BED1

4/24/2024<0.0020<0.0020<0.0020

BED1-DUP

3/4/2024<0.0020<0.0020<0.0020BED1

3/4/2024<0.0020<0.0020<0.0020BED1

10/27/2023<0.0020<0.0020<0.0020BED1

8/2/2023<0.0020<0.0020<0.0020PT

8/2/2023

0.081

0.020

0.012

BED1

4/20/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 04/20/2023 - 5yr.
BED1

2/28/2022<0.0020<0.0020<0.0020

BED1-DUP

12/2/2021<0.0020<0.0020<0.0020BED1

12/2/2021<0.0020<0.0020<0.0020BED1

8/30/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.085

0.038 J

0.025

BED1

6/29/2021<0.0020<0.0020<0.0020

BED1

1/20/2021<0.0020<0.0020<0.0020BED1

10/8/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

BED1

6/9/2020<0.0020<0.0020<0.0020

BED1

2/19/2020<0.0020<0.0020<0.0020

BED1

10/23/2019<0.0020<0.0020<0.0020BED1

8/21/2019<0.0020<0.0020<0.0020PT

8/21/2019

0.10

0.032

0.025

BED1

5/9/2019<0.0020<0.0020<0.0020BED1

1/29/2019<0.0020<0.0020<0.0020BED1

11/5/2018<0.0020<0.0020<0.0020PT

7/30/2018

0.077

0.022

0.015

BED1

7/30/2018<0.0020<0.0020<0.0020PT

5/8/2018<0.010BED1

5/8/2018<0.010BED1

5/8/2018

PT

2/28/2018<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.00200.0021 J

0.000640.011

0.0018

0.043

0.026

0.0011<0.00040<0.00040<0.00040<0.00040

0.034

0.021

February-March 2018 branched and linear study sample.
BED1

2/28/2018<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

12/12/2017<0.0020<0.0020<0.0020PT

9/20/2017

0.085

0.026

0.019

BED1-DUP

9/20/2017<0.0020<0.0020<0.0020

BED1

9/20/2017<0.0020<0.0020<0.0020-DUP

3/23/2017

0.079

0.022

0.022

<0.020<0.020

0.022

0.022

<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.018

0.0032

0.056

0.035

0.00250.019

0.0031

0.056

0.034

0.0022

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/10/2017.
3/23/2017

0.079

GAC installed 05/10/2017.

Location: 162
BED1-DUP

5/28/2024<0.0020<0.0020<0.0020BED1

5/28/2024<0.0020<0.0020<0.0020BED1

2/28/2024<0.0020<0.0020<0.0020BED1

11/9/2023<0.0020<0.0020<0.0020PT

8/22/2023<0.0020<0.0020<0.0020BED1

8/22/2023<0.0020<0.0020<0.0020BED1

5/31/2023<0.0020<0.0020<0.0020

BED1-DUP

3/16/2023<0.0020<0.0020<0.0020BED1

3/16/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/14/2022<0.0020<0.0020<0.0020PT

9/1/2022

0.086

0.0044

0.013

BED1

9/1/2022<0.0020<0.0020<0.0020

BED1-DUP

5/12/2022<0.0020<0.0020<0.0020BED1

5/12/2022<0.0020<0.0020<0.0020

BED1-DUP

2/9/2022<0.0020<0.0020<0.0020BED1

2/9/2022<0.0020<0.0020<0.0020BED1

11/11/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 10/21/2021 - 5yr.
BED1

8/16/2021<0.0020<0.0020<0.0020PT

8/16/2021

0.062

0.0048 J

0.011

BED1

5/4/2021<0.0020<0.0020<0.0020BED1

2/9/2021<0.0020<0.0020<0.0020BED1

11/3/2020<0.0020<0.0020<0.0020

BED1-DUP

9/2/2020<0.0020<0.0020<0.0020BED1

9/2/2020<0.0020<0.0020<0.0020PT

9/2/2020

0.059 J

0.0065 J

0.0082 J

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/12/2020<0.0020<0.0020<0.0020

BED1

2/20/2020<0.0020<0.0020<0.0020BED1

11/13/2019<0.0020<0.0020<0.0020PT

9/11/2019

0.051

0.00530.0043

BED1-DUP

9/11/2019<0.0020<0.0020<0.0020BED1

9/11/2019<0.0020<0.0020<0.0020BED1

5/15/2019<0.0020<0.0020<0.0020BED1

3/26/2019<0.0020<0.0020<0.0020

BED1

11/27/2018<0.0020<0.0020<0.0020PT

8/2/2018

0.047

0.00360.0028BED1

8/2/2018<0.0020<0.0020<0.0020BED1

4/25/2018<0.0020<0.0020<0.0020

BED1

2/21/2018<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED2

12/11/2017<0.0020<0.0020<0.0020BED1

12/11/2017

0.0022<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PT

9/27/2017

0.075

0.00330.0045 B

BED1

9/27/2017<0.0020<0.0020<0.0020

3/28/2017

0.065

0.00440.0035<0.020<0.0200.00640.0078<0.020 UJ

0.00580.0076<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.051

0.02

<0.0020<0.020 UJ

0.0059<0.002

0.061

0.038

<0.020 UJ

0.0059

0.002

0.057

0.034

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/11/2017.

Location: 163
4/11/2017

0.066

PWS connection 11/28/2017.
-DUP

4/11/20170.06

PWS connection 11/28/2017.

Location: 164
BED1

4/24/2024<0.0020<0.0020<0.0020BED1

1/30/2024<0.0020<0.0020<0.0020BED1

10/27/2023<0.0020<0.0020<0.0020PT

8/16/2023

0.084<0.00200.0072

BED1

8/16/2023<0.0020<0.0020<0.0020BED1

5/23/2023<0.0020<0.0020<0.0020BED1

3/1/2023<0.0020<0.0020<0.0020BED1

12/13/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 12/13/2022 - 5yr.
PT

9/13/2022

0.078<0.00200.0055

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/13/2022<0.0020<0.0020<0.0020BED1

6/8/2022

0.0028<0.0020<0.0020BED2

6/8/2022<0.0020<0.0020<0.0020BED1

3/1/2022<0.0020<0.0020<0.0020

BED2

11/23/2021<0.0020<0.0020<0.0020

BED1

11/23/2021

0.0026<0.0020<0.0020BED1

9/17/2021<0.0020<0.0020<0.0020PT

9/17/2021

0.067<0.00200.0043

BED1

6/22/2021<0.0020<0.0020<0.0020BED1

3/23/2021<0.0020<0.0020<0.0020

BED1

10/21/2020<0.0020<0.0020<0.0020

BED1-DUP

10/21/2020<0.0020<0.0020<0.0020BED1

8/19/2020<0.0020<0.0020<0.0020PT

8/19/2020<0.0020<0.0020<0.0020BED1

6/11/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/17/2020<0.0020<0.0020<0.0020BED1

11/11/2019<0.0020<0.0020<0.0020BED1

9/6/2019<0.0020<0.0020<0.0020PT

9/6/2019

0.079<0.00200.0027BED1

5/30/2019<0.0020<0.0020<0.0020BED1

3/27/2019<0.0020<0.0020<0.0020

BED1-DUP

3/27/2019<0.0020<0.0020<0.0020BED1

11/12/2018<0.0020<0.0020<0.0020

BED1-DUP

11/12/2018<0.0020<0.0020<0.0020

BED1-DUP

8/16/2018<0.0020<0.0020<0.0020BED1

8/16/2018<0.0020<0.0020<0.0020PT

8/16/2018

0.073<0.00200.0022

BED1-DUP

5/16/2018<0.0020<0.0020<0.0020BED1

5/16/2018<0.0020<0.0020<0.0020

BED1-DUP

3/22/2018<0.0020<0.0020<0.0020BED1

3/22/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

BED1-DUP

12/22/2017<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 11/02/2017 - Fe.
BED1

12/22/2017<0.0020<0.0020<0.0020

Carbon Changeout 11/02/2017 - Fe.
4/11/2017

0.068<0.0020<0.0020<0.020<0.020<0.0020<0.0020

0.054

0.024

<0.0020<0.0020<0.0020<0.0020<0.00200.00750.0072<0.020<0.0200.0024<0.0020

0.074

0.043

0.00360.0029<0.0020<0.0020<0.00200.00750.0077<0.020<0.0200.0021

0.002

0.074

0.044

0.00370.003<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020 UJ<0.020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.020 UJ<0.020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ<0.020 UJ<0.020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

GAC installed 08/03/2017.

Location: 165
4/21/2017

0.075

PWS connection 11/28/2017.
-DUP

4/21/2017

0.073

PWS connection 11/28/2017.

Location: 166
7/8/2024<0.0020

5/17/2017<0.0020 UJ 0.002 J<0.0020 UJ<0.0020<0.0020<0.0020<0.0020

Location: 167
POST

4/29/2024<0.0020<0.0020<0.0020PRE

4/29/2024<0.0020<0.0020<0.0020

PRE-DUP

4/29/2024<0.0020<0.0020<0.0020

4/25/2022<0.0020<0.0020<0.0020

3/15/2021<0.0020<0.0020<0.0020

5/17/2017<0.0020 UJ 0.0023 J

5/17/2017

0.0037 J-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

0.0025 J

0.055 J

0.034 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 168
BED1

6/6/2024<0.0020<0.0020<0.0020BED1

1/31/2024<0.0020<0.0020<0.0020

BED1-DUP

10/30/2023<0.0020<0.0020<0.0020BED1

10/30/2023<0.0020<0.0020<0.0020BED1

8/22/2023<0.0020<0.0020<0.0020PT

8/22/2023

0.078

0.0059

0.015

BED1

6/21/2023<0.0020<0.0020<0.0020BED1

2/1/2023<0.0020<0.0020<0.0020BED1

11/1/2022<0.0020<0.0020<0.0020PT

7/27/2022

0.063

0.00430.0095

BED1

7/27/2022<0.0020<0.0020<0.0020

2/28/2022

0.064

0.0044

0.011

0.1 J

0.0071 J

0.0053 J<0.0020<0.0020<0.0020

GAC installed 04/20/2022.
5/17/2017<0.020 UJ<0.020 UJ

0.0022 J

Declined treatment offer.

Location: 169
BED1

6/4/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/5/2024<0.0020<0.0020<0.0020BED1

11/14/2023<0.0020<0.0020<0.0020BED1

6/13/2023<0.0020<0.0020<0.0020BED1

3/14/2023<0.0020<0.0020<0.0020

BED1

11/29/2022<0.0020<0.0020<0.0020PT

9/1/2022

0.11

0.058

0.015

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 08/31/2022 - 5yr.
BED1

9/1/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 08/31/2022 - 5yr.
BED1

5/16/2022<0.0020<0.0020<0.0020BED1

2/17/2022<0.0020<0.0020<0.0020BED1

11/8/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.10

0.11

0.019

BED1

8/23/2021<0.0020<0.0020<0.0020BED1

6/15/2021<0.0020<0.0020<0.0020BED1

3/15/2021<0.0020<0.0020<0.0020

BED1-DUP

3/15/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/29/2020<0.0020<0.0020<0.0020BED1

8/31/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.14

0.044

0.016

BED1

6/18/2020<0.0020<0.0020<0.0020BED1

2/26/2020<0.0020<0.0020<0.0020

BED1

11/25/2019<0.0020<0.0020<0.0020BED1

8/29/2019<0.0020<0.0020<0.0020PT

8/29/2019

0.12

0.059

0.014

BED1-DUP

5/29/2019<0.0020<0.0020<0.0020BED1

5/29/2019<0.0020<0.0020<0.0020BED1

3/13/2019<0.0020<0.0020<0.0020BED1

11/12/2018<0.0020<0.0020<0.0020PT

8/15/2018

0.079

0.092

0.016

BED1

8/15/2018<0.0020<0.0020<0.0020BED1

5/9/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAPT

5/9/2018<0.010BED1

5/9/2018<0.010PT

2/28/2018<0.00040<0.00040

0.00520.0063

0.046

0.037

0.00075<0.00040<0.00040<0.00040<0.00040<0.020 UJ<0.020 UJ

0.0037 J

0.015 J

0.069 J

0.036 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

0.045

ADONA

0.031

February-March 2018 branched and linear study sample.
BED1

2/28/2018<0.0020<0.0020<0.0020BED1

12/12/2017<0.0020<0.0020<0.0020

Carbon Changeout 08/23/2017 - Fe.
5/17/20170.085 J

0.055 J

0.011 J

GAC installed 07/06/2017.

Location: 170
BED1

6/4/2024<0.0020<0.0020<0.0020

BED2

1/23/2024<0.0020<0.0020<0.0020

BED1

1/23/2024

0.047

0.0048

0.012

BED1

10/24/2023<0.0020<0.0020<0.0020BED1

8/15/2023<0.0020<0.0020<0.0020PT

8/15/2023

0.056

0.0057

0.014

BED1

5/4/2023<0.0020<0.0020<0.0020BED1

2/7/2023<0.0020<0.0020<0.0020BED1

11/7/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
PT

Date

PFOA

PFOS

8/30/2022

0.036

0.0029PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.0067

Carbon Changeout 08/30/2022 - 5yr.
BED1

8/30/2022<0.0020<0.0020<0.0020

Carbon Changeout 08/30/2022 - 5yr.
BED1

5/12/2022<0.0020BED1

2/10/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

10/27/2021<0.0020<0.0020<0.0020

BED1-DUP

10/27/2021<0.0020<0.0020<0.0020BED1

8/17/2021<0.0020<0.0020<0.0020PT

8/17/2021

0.070

0.0061

0.012

BED1

5/21/2021<0.0020<0.0020<0.0020BED1

2/24/2021<0.0020<0.0020<0.0020BED1

10/28/2020<0.0020<0.0020<0.0020

BED1-DUP

10/28/2020<0.0020<0.0020<0.0020BED1

8/25/2020<0.0020<0.0020<0.0020PT

8/25/2020

0.043

0.00230.0038BED1

6/18/2020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/27/2020<0.0020<0.0020<0.0020

BED1

11/22/2019<0.0020<0.0020<0.0020PT

8/21/2019

0.064

0.00490.0067BED1

8/21/2019<0.0020<0.0020<0.0020BED1

5/8/2019<0.0020<0.0020<0.0020

BED1-DUP

5/8/2019<0.0020<0.0020<0.0020BED1

3/11/2019<0.0020<0.0020<0.0020

BED1

11/27/2018<0.0020<0.0020<0.0020PT

8/21/2018

0.066

0.00460.0069BED1

8/21/2018<0.0020<0.0020<0.0020BED1

5/31/2018<0.0020<0.0020<0.0020BED1

3/16/2018<0.0020<0.0020<0.0020BED1

12/14/2017<0.0020<0.0020<0.0020

5/17/20170.063 J

0.0047 J

0.0048 J<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020 UJ<0.020 UJ<0.0020 UJ<0.0020 UJ 0.039 J

0.024 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

GAC installed 07/05/2017.

Location: 171
BED1

6/4/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/18/2024<0.0020<0.0020<0.0020

BED1-DUP

12/13/2023<0.0020<0.0020<0.0020BED1

12/13/2023<0.0020<0.0020<0.0020PT

8/29/2023

0.16

0.00690.0075BED1

8/29/2023<0.0020<0.0020<0.0020BED1

6/22/2023<0.0020<0.0020<0.0020BED1

3/23/2023<0.0020<0.0020<0.0020

BED1

11/29/2022<0.0020<0.0020<0.0020PT

9/21/2022

0.17

0.00570.0082

BED1

9/21/2022<0.0020<0.0020<0.0020BED1

5/24/2022<0.0020<0.0020<0.0020BED1

2/28/2022<0.0020<0.0020<0.0020BED1

12/2/2021<0.0020<0.0020<0.0020PT

9/7/2021

0.18

0.00290.0054BED1

9/7/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

9/7/2021<0.0020<0.0020<0.0020BED1

6/28/2021<0.0020<0.0020<0.0020BED1

2/16/2021<0.0020<0.0020<0.0020BED1

12/8/2020<0.0020<0.0020<0.0020BED1

8/12/2020<0.0020<0.0020<0.0020PT

8/12/2020

0.29

0.00700.0085BED1

6/10/2020<0.0020<0.0020<0.0020BED1

3/2/2020<0.0020<0.0020<0.0020

BED1-DUP

3/2/2020<0.0020<0.0020<0.0020BED1

12/5/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 10/11/2019 - Fe.
PT

9/3/2019

0.13<0.0020

0.002

BED1

9/3/2019<0.0020<0.0020<0.0020BED1

6/25/2019<0.0020<0.0020<0.0020

BED1

2/19/2019<0.0020<0.0020<0.0020BED1

11/28/2018<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/18/2018

0.082

0.00220.0028BED1

9/18/2018<0.0020<0.0020<0.0020BED2

5/11/2018<0.0020<0.0020<0.0020BED1

5/11/2018<0.0020<0.0020<0.0020BED1

3/22/2018<0.0020<0.0020<0.0020BED1

12/5/2017<0.0020<0.0020<0.0020

5/17/20170.12 J

0.032 J

0.0027 J

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020 UJ<0.020 UJ

0.0027 J

0.0083 J

0.089 J

0.066 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

GAC installed 07/31/2017.

Location: 172
BED1

5/9/2024<0.0020<0.0020<0.0020BED1

2/12/2024<0.0020<0.0020<0.0020BED1

10/13/2023<0.0020<0.0020<0.0020BED1

8/7/2023<0.0020<0.0020<0.0020PT

8/7/2023

0.044

0.00260.0050BED1

5/15/2023<0.0020<0.0020<0.0020

BED1-DUP

2/28/2023<0.0020<0.0020<0.0020BED1

2/28/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleBED1

Date
12/14/2022

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 12/14/2022 - 5yr.
PT

8/2/2022

0.059 J

BED1

8/2/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

4/26/2022<0.0020<0.0020<0.0020BED1

2/1/2022<0.0020<0.0020<0.0020

BED1-DUP

2/1/2022<0.0020<0.0020<0.0020BED1

11/10/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.080

0.0024 J

0.0075BED1

8/30/2021<0.0020<0.0020<0.0020BED1

6/15/2021<0.0020<0.0020<0.0020BED1

1/22/2021<0.0020<0.0020<0.0020

BED1

10/20/2020<0.0020<0.0020<0.0020PT

8/19/2020

0.064

0.00230.0036

BED1-DUP

8/19/2020<0.0020<0.0020<0.0020BED1

8/19/2020<0.0020 UJ <0.0020 UJ <0.0020 UJ

0.0025 J

0.0042 J

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/11/2020<0.0020<0.0020<0.0020BED1

2/26/2020<0.0020<0.0020<0.0020

BED1

11/20/2019<0.0020<0.0020<0.0020BED1

9/19/2019<0.0020<0.0020<0.0020PT

9/19/2019

0.063

0.00210.0028BED1

4/23/2019<0.0020<0.0020<0.0020BED1

2/6/2019<0.0020<0.0020<0.0020BED1

11/9/2018<0.0020<0.0020<0.0020BED1

8/13/2018<0.0020<0.0020<0.0020PT

8/13/2018

0.041<0.00200.0021BED1

5/16/2018<0.0020<0.0020<0.0020BED1

3/13/2018<0.0020<0.0020<0.0020BED1

12/12/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Carbon Changeout 11/02/2017 - Fe.
-DUP

5/18/20170.059 B

0.0097 B

0.003 B

<0.020 UJ<0.020 UJ<0.0020<0.00200.039 B

0.023 B

<0.0020<0.0020<0.0020<0.0020<0.00200.019 B

0.0031 B<0.020 UJ<0.020 UJ<0.0020<0.00200.04 B

0.023 B

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 09/12/2017.
5/18/20170.058 BGAC installed 09/12/2017.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

5/15/2023

0.0046<0.0020<0.0020

5/30/2017<0.0020<0.0020<0.0020<0.020 UJ<0.020 UJ<0.0020<0.0020<0.0020<0.020 UJ<0.020 UJ

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.00440.0026<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 173

Location: 174
5/30/2017

Location: 175
BED1

4/10/2024<0.0020<0.0020<0.0020BED1

3/11/2024<0.0020<0.0020<0.0020BED1

10/31/2023<0.0020<0.0020<0.0020PT

8/28/2023

0.056

0.028

0.010

BED1

8/28/2023<0.0020<0.0020<0.0020BED1

5/31/2023<0.0020<0.0020<0.0020BED1

3/22/2023<0.0020<0.0020<0.0020

Carbon Changeout 03/22/2023 - 5yr.
PT

9/13/2022

0.068

0.032

0.010

BED1

9/13/2022<0.0020<0.0020<0.0020

BED1

6/20/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/23/2022<0.0020<0.0020<0.0020

BED1-DUP

3/23/2022<0.0020<0.0020<0.0020BED1

12/13/2021<0.0020<0.0020<0.0020

BED1-DUP

12/13/2021<0.0020<0.0020<0.0020BED1

9/13/2021<0.0020<0.0020<0.0020PT

9/13/2021

0.043

0.020

0.0060BED1

6/14/2021<0.0020<0.0020<0.0020BED1

3/11/2021<0.0020<0.0020<0.0020

BED1

11/17/2020<0.0020<0.0020<0.0020BED1

9/21/2020<0.0020<0.0020<0.0020PT

9/21/2020

0.062

0.029

0.0069BED1

6/25/2020<0.0020<0.0020<0.0020BED1

2/18/2020<0.0020<0.0020<0.0020BED1

11/12/2019<0.0020<0.0020<0.0020BED1

8/23/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/23/2019

0.061

0.026

0.0086BED1

5/6/2019<0.0020<0.0020<0.0020BED1

2/25/2019<0.0020<0.0020<0.0020BED1

11/13/2018<0.0020<0.0020<0.0020PT

8/28/2018

0.065

0.041

0.0070BED1

8/28/2018<0.0020<0.0020<0.0020

BED1

5/21/2018<0.0020<0.0020<0.0020BED1

2/22/2018<0.0020<0.0020<0.0020BED1

12/5/2017<0.0020<0.0020<0.0020

5/30/2017

0.064

0.045

0.0071

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020 UJ<0.020 UJ

0.0066

0.009

0.045

0.028

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 08/01/2017.

Location: 176
4/22/2024<0.0020<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

3/12/2021<0.0020<0.0020<0.0020

5/31/2017<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

6/13/2022

0.0048<0.0020<0.0020

4/19/2021

0.0043<0.0020<0.0020

5/31/20170.0045<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

3/16/2021<0.0020<0.0020<0.0020

5/31/2017<0.0020<0.0020<0.0020

6/27/2022<0.0020<0.0020<0.0020

5/7/2021<0.0020<0.0020<0.0020

5/31/2017<0.0020<0.0020

7/15/2024<0.0020

6/1/2022<0.0020

4/26/2021<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 177<0.020<0.0200.0065<0.00200.00480.0023<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 178

Location: 179

Location: 180<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

-DUP

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

6/11/2018<0.0020<0.0020<0.0020<0.020<0.0206/11/2018<0.0020<0.0020<0.0020<0.0205/31/2017<0.0020<0.0020<0.0020

7/28/2022<0.0020<0.0020<0.0020

4/21/2021<0.0020<0.0020<0.0020

5/31/2017<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 181

Location: 182
5/31/2017

Location: 183
BED1

5/24/2024<0.0020<0.0020<0.0020

BED1

2/20/2024<0.0020<0.0020<0.0020BED1

10/31/2023<0.0020<0.0020<0.0020

BED1-DUP

8/30/2023<0.0020<0.0020<0.0020BED1

8/30/2023<0.0020<0.0020<0.0020PT

8/30/2023

0.017<0.00200.0025

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/25/2023<0.0020<0.0020<0.0020BED1

3/7/2023<0.0020<0.0020<0.0020BED1

12/8/2022<0.0020<0.0020<0.0020PT

9/14/2022

0.0022<0.0020<0.0020BED1

9/14/2022<0.0020<0.0020<0.0020BED1

6/2/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 03/02/2022 - 5yr.
BED1

2/23/2022

0.048

0.021

0.013

BED2

2/23/2022<0.0020<0.0020<0.0020BED1

12/1/2021<0.0020<0.0020<0.0020PT

9/7/2021

0.050

0.017

0.015

BED2

9/7/2021<0.0020<0.0020<0.0020BED1

9/7/2021

0.047

0.015

0.013

BED1

5/4/2021

0.045

0.017

0.013

BED2

5/4/2021<0.0020<0.0020<0.0020

BED1-DUP

5/4/2021

0.052

0.020

0.015

BED2

1/21/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/21/2021

0.055

0.021

0.020

BED2

10/14/2020<0.0020<0.0020<0.0020BED1

10/14/2020

0.061

0.020

0.019

BED2

8/12/2020<0.0020<0.0020<0.0020PT

8/12/2020

0.056

0.017

0.016

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
BED2

8/12/2020<0.0020 UJ <0.0020 UJ <0.0020 UJ

Split sampling for method comparison.
BED1-DUP

8/12/2020

0.054

0.017

0.014

BED1

8/12/2020

0.058

0.016

0.016

Split sampling for method comparison.
BED1

8/12/2020

0.054 J

0.017

0.015

PT

8/12/2020

0.059

0.017

0.016

BED2

6/23/2020<0.0020<0.0020<0.0020BED1

6/23/2020

0.068

0.038

0.016

BED1

2/14/2020<0.0020<0.0020<0.0020BED2

10/28/2019<0.0020<0.0020<0.0020BED1

10/28/2019

0.050

0.019 J

0.015

PT7/24/2019

0.058

0.022

0.015

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

BED2

7/24/2019<0.0020<0.0020<0.0020BED1

7/24/2019

0.052

0.022

0.014

BED2

4/16/2019<0.0020<0.0020<0.0020BED1

4/16/2019

0.049

0.011

0.013

BED1

2/1/2019

0.055

0.0089

0.013

BED2

2/1/2019<0.0020<0.0020<0.0020BED1

11/6/2018

0.060

0.0089

0.013

BED2

11/6/2018<0.0020<0.0020<0.0020PT

7/10/2018

0.063

0.0086

0.012

BED2

7/10/2018<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

7/10/2018

0.057

BED1

5/8/2018<0.010PT

5/8/2018<0.010BED2

4/17/2018<0.0020<0.0020<0.0020BED1

4/17/2018

0.065

0.01

0.011

PT

2/28/2018

0.0088PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.00400.011<0.00040<0.00040

0.012

0.0020

0.037

0.025

0.0030<0.00040<0.00040<0.00040<0.00040

0.029

0.020

February-March 2018 branched and linear study sample.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED2

2/28/2018<0.0020<0.0020<0.0020BED1

2/28/2018

0.07

0.014

0.011

BED2

12/12/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

0.0041

0.044

0.028

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 11/06/2017 - Fe.
BED1

12/12/2017

0.075

0.012

0.011

Carbon Changeout 11/06/2017 - Fe.
5/31/2017

0.096

0.019

0.0092<0.020<0.0200.012

0.0031<0.0020

GAC installed 08/02/2017.

Location: 184
BED1

6/7/2024<0.0020<0.0020<0.0020BED1

3/15/2024<0.0020<0.0020<0.0020BED1

11/28/2023<0.0020<0.0020<0.0020BED1

9/5/2023<0.0020<0.0020<0.0020PT

9/5/2023

0.16

0.11

0.022

BED1

6/13/2023<0.0020<0.0020<0.0020

Carbon Changeout 04/04/2023 - tank size.
BED1

3/16/2023<0.0020<0.0020<0.0020PT

11/3/2022

0.081

0.040

0.021

Carbon Changeout 11/02/2022 - 5yr.
BED1

11/3/2022<0.0020<0.0020<0.0020

Carbon Changeout 11/02/2022 - 5yr.
BED1

9/29/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/21/2022<0.0020<0.0020<0.0020BED1

3/10/2022<0.0020<0.0020<0.0020BED1

12/2/2021<0.0020<0.0020<0.0020PT

9/14/2021

0.075

0.072

0.011

BED1

9/14/2021<0.0020<0.0020<0.0020BED1

5/27/2021<0.0020<0.0020<0.0020BED1

2/26/2021<0.0020<0.0020 UJ <0.0020

BED1

10/14/2020<0.0020<0.0020<0.0020PT

8/10/2020

0.10

0.11

0.010

PT

8/10/2020

0.10

0.10

0.011

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
BED1

8/10/2020<0.0020<0.0020<0.0020BED1

8/10/2020<0.0020<0.0020<0.0020

Split sampling for method comparison.
BED1

6/23/2020<0.0020<0.0020<0.0020BED1

3/10/2020<0.0020<0.0020<0.0020BED1

12/5/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

9/5/2019<0.0020<0.0020<0.0020PT

9/5/2019

0.12

0.061

0.010

BED1-DUP

9/5/2019<0.0020<0.0020<0.0020

BED1

5/20/2019<0.0020<0.0020<0.0020

BED1

2/19/2019<0.0020<0.0020<0.0020BED1

11/28/2018<0.0020<0.0020<0.0020BED1

7/31/2018<0.0020<0.0020<0.0020PT

7/31/2018

0.077

0.050

0.0069BED1

5/2/2018<0.0020<0.0020<0.0020BED1

2/22/2018<0.0020<0.0020<0.0020BED2

12/13/2017<0.0020<0.0020<0.0020BED1

12/13/2017<0.0020<0.0022<0.0020

5/31/2017

0.074

0.05

0.0048<0.020<0.0200.00420.0062

0.073

0.049

<0.0020<0.0020<0.0020<0.0020<0.00200.00370.0022 J<0.020 UJ<0.020 UJ

0.027

0.0038

0.099

0.046

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0069<0.020 UJ<0.020 UJ

0.026

0.0038

0.094

0.046

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.00200.0036

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 08/24/2017.

Location: 185
6/7/2017

0.085

Treatment incomplete/in progress - declined bottled water.
-DUP

6/7/2017

0.086

0.00390.0021 J

Treatment incomplete/in progress - declined bottled water.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 186
POST

5/21/2021<0.0020<0.0020<0.0020PRE

5/21/2021<0.0020<0.0020<0.0020

6/14/2017<0.0020<0.0020<0.0020<0.020 UJ<0.020 UJ<0.0020<0.0020<0.0020<0.0020<0.00200.0023<0.0020<0.0020<0.0020

5/18/2017<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.002<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 187
POST

5/15/2023<0.0020<0.0020<0.0020PRE

5/15/2023<0.0020<0.0020<0.0020

6/21/2017<0.0020<0.0020<0.0020

Location: 188
PRE

3/20/2024

0.00350.0028<0.0020

POST

3/20/2024

0.00280.0026<0.0020POST

4/11/2022

0.00420.0036 J<0.0020PRE

4/11/2022

0.00430.0031 J<0.0020

3/16/2021

0.00360.0028<0.0020

6/23/2017<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

7/15/2024<0.0020<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

3/26/2021<0.0020<0.0020<0.0020

3/26/2021<0.0020<0.0020<0.0020

6/28/2017

0.0026<0.0020<0.0020

4/23/2024<0.0020<0.0020<0.0020

4/23/2024<0.0020<0.0020<0.0020

4/18/2022<0.0020<0.0020<0.0020

3/12/2021<0.0020<0.0020<0.0020

7/5/2017<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 189-DUP<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 190-DUP

Location: 191
BED1

11/12/2018

Replacement well installed (Regulatory Location ID #399). Not qualified so GAC removed 06/20/2019.
BED1

8/14/2018<0.0020<0.0020<0.0020PT

8/14/2018

0.070

0.00460.015<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/16/2018<0.0020<0.0020<0.0020BED1

3/14/2018<0.0020<0.0020<0.0020BED1

12/12/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 12/08/2017 - Fe.
7/12/2017

0.071

0.00530.016<0.020<0.020<0.0020<0.0020

0.031

0.022

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 09/08/2017.

Location: 192
9/19/2023

0.0072<0.00200.0044

6/2/2021

0.0036 J<0.0020<0.0020 UJ

7/13/2017<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 193
POST

7/8/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

7/8/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

POST

6/20/2022<0.0020<0.0020<0.0020PRE

6/20/2022<0.0020<0.0020<0.0020

6/30/2021<0.0020<0.0020<0.0020

6/30/2021<0.0020<0.0020<0.0020

7/18/2017<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

7/3/2024

0.0020<0.0020<0.0020<0.0020<0.0020

7/3/2024

0.0020<0.0020<0.0020<0.0020

12/18/2018<0.0020<0.0020<0.0020

8/8/2017<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 194-DUP

Location: 195
BED1

4/2/2024<0.0020<0.0020<0.0020BED1

1/3/2024<0.0020<0.0020<0.0020

BED1-DUP

10/5/2023<0.0020<0.0020<0.0020BED1

10/5/2023<0.0020<0.0020<0.0020BED1

7/26/2023<0.0020<0.0020<0.0020PT

7/26/2023

0.052<0.00200.0031

BED1

5/1/2023<0.0020<0.0020<0.0020

BED1-DUP

5/1/2023<0.0020<0.0020<0.0020BED1

3/15/2023<0.0020<0.0020<0.0020

BED1

12/22/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

12/22/2022<0.0020<0.0020<0.0020PT

7/5/2022

0.067<0.00200.0040BED1

7/5/2022<0.0020<0.0020<0.0020BED1

4/5/2022<0.0020<0.0020<0.0020BED1

1/3/2022<0.0020<0.0020<0.0020BED1

10/7/2021<0.0020<0.0020<0.0020BED1

7/14/2021<0.0020<0.0020<0.0020PT

7/14/2021

0.069<0.00200.0028

BED1-DUP

7/14/2021<0.0020<0.0020<0.0020

BED1

4/20/2021<0.0020<0.0020<0.0020BED1

1/22/2021<0.0020<0.0020<0.0020

BED1

10/19/2020<0.0020<0.0020<0.0020PT

8/17/2020

0.067<0.00200.0024BED1

8/17/2020<0.0020<0.0020<0.0020BED1

6/30/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

3/3/2020<0.0020<0.0020<0.0020

BED1

11/26/2019<0.0020<0.0020<0.0020BED1

7/30/2019<0.0020<0.0020<0.0020PT

7/30/2019

0.074<0.0020<0.0020

12/18/2018

0.059<0.0020<0.0020<0.020<0.0200.047<0.0020<0.0020<0.0203/16/2021<0.0020<0.0020<0.0020

8/10/2017<0.0020<0.0020<0.0020

8/10/2017<0.0020<0.0020

6/8/2017

0.084

0.0027

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.047

0.02

<0.0020<0.020<0.0020<0.0020

0.046

0.02

<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.017<0.020 UJ<0.020 UJ

0.0066<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.061

0.03

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.00200.0028<0.00200.023

0.0094<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/15/2019.
8/8/2017

Location: 196-DUP

Results for this sample may be results for a different location due to mislabeling.

Location: 197
8/10/2017

0.024<0.00200.0053<0.020<0.020Replacement well installed (Regulatory Location ID #296). Not qualified so bottled water stopped. Well decommissioned according to NJ Data Miner.

Location: 198
BED1

4/23/2024<0.0020<0.0020<0.0020BED1

1/30/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

1/30/2024<0.0020<0.0020<0.0020BED1

10/26/2023<0.0020<0.0020<0.0020PT

8/14/2023

0.062

0.041

0.0075BED1

8/14/2023<0.0020<0.0020<0.0020BED1

5/30/2023<0.0020<0.0020<0.0020

BED1

2/21/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/21/2023 - 5yr.
BED1

10/5/2022<0.0020<0.0020<0.0020PT

7/18/2022

0.057

0.027

0.0064

BED1

7/18/2022<0.0020<0.0020<0.0020BED1

4/13/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

1/25/2022<0.0020<0.0020<0.0020BED1

10/27/2021<0.0020<0.0020<0.0020BED1

8/18/2021<0.0020<0.0020<0.0020PT

8/18/2021

0.058

0.017

0.0069BED1

5/11/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/10/2021<0.0020<0.0020<0.0020BED1

11/3/2020<0.0020<0.0020<0.0020BED1

9/2/2020<0.0020<0.0020<0.0020PT

9/2/2020

0.058

0.024

0.0047BED1

6/22/2020<0.0020<0.0020<0.0020

BED1-DUP

6/22/2020<0.0020<0.0020<0.0020BED1

2/4/2020<0.0020<0.0020<0.0020BED1

10/11/2019<0.0020<0.0020<0.0020PT

7/24/2019

0.080

0.017

0.0053

BED1

7/24/2019<0.0020<0.0020<0.0020BED1

4/17/2019<0.0020<0.0020<0.0020BED1

2/8/2019<0.0020<0.0020<0.0020BED1

11/9/2018<0.0020<0.0020<0.0020PT

8/13/2018

0.079

0.021

0.0054BED1

8/13/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

BED1

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

5/11/2018<0.0020<0.0020<0.0020

3/16/2018<0.0020<0.0020<0.0020

9/12/2017

0.08

0.02

0.005

<0.020<0.0200.02

0.0048<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.00220.0036

0.05

0.033

<0.0020<0.0200.00220.0035

0.052

0.033

<0.020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/04/2017.
-DUP

9/12/2017

0.082

GAC installed 10/04/2017.

Location: 199
7/28/2022<0.0020<0.0020<0.0020

9/19/2017<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 200
BED1

4/16/2024<0.0020BED1

1/11/2024<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 01/11/2024 - 5yr.
BED1

10/23/2023<0.0020<0.0020<0.0020PT

8/8/2023

0.020

0.019

<0.0020BED1

8/8/2023<0.0020<0.0020<0.0020

BED1

4/20/2023<0.0020<0.0020<0.0020BED1

1/25/2023<0.0020<0.0020<0.0020

BED1

10/19/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 213 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/10/2022

0.015

0.013

<0.0020BED1

8/10/2022<0.0020<0.0020<0.0020BED1

5/4/2022<0.0020<0.0020<0.0020BED1

2/8/2022<0.0020<0.0020<0.0020BED1

11/9/2021<0.0020<0.0020<0.0020BED1

8/24/2021<0.0020<0.0020<0.0020PT

8/24/2021

0.017

0.016

<0.0020BED1

5/19/2021<0.0020<0.0020<0.0020BED1

2/16/2021<0.0020<0.0020<0.0020BED1

12/2/2020<0.0020<0.0020<0.0020BED1

9/23/2020<0.0020<0.0020<0.0020PT

9/23/2020

0.017

0.021

<0.0020BED1

6/25/2020<0.0020<0.0020<0.0020

BED1

2/20/2020<0.0020<0.0020<0.0020

BED1

10/23/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

7/19/2019<0.0020<0.0020<0.0020PT

7/19/2019

0.014

0.024

<0.0020BED1

4/11/2019<0.0020<0.0020<0.0020

10/26/2018

0.014

0.016

<0.0020<0.020<0.020

0.012

0.015

<0.0020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.00570.014

0.0062<0.0020<0.020<0.00200.00540.012

0.0053

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/30/2019.
10/17/2017

Location: 201
PRE

4/15/2024<0.0020<0.0020<0.0020POST

4/15/2024<0.0020<0.0020<0.0020POST

5/2/2022<0.0020<0.0020<0.0020PRE

5/2/2022<0.0020<0.0020<0.0020

POST

3/12/2021<0.0020<0.0020<0.0020PRE

3/12/2021<0.0020<0.0020<0.0020

10/26/2017<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0026<0.00200.0022<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 202
10/26/2017

Location: 203
3/9/2021

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 215 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

10/26/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 204
BED1

4/18/2024<0.0020<0.0020<0.0020BED1

2/1/2024<0.0020<0.0020<0.0020BED1

11/1/2023<0.0020<0.0020<0.0020PT

8/22/2023

0.048

0.00580.0035BED1

8/22/2023<0.0020<0.0020<0.0020BED1

6/7/2023<0.0020<0.0020<0.0020

BED1-DUP

3/27/2023<0.0020<0.0020<0.0020BED1

3/27/2023<0.0020<0.0020<0.0020BED1

11/7/2022<0.0020<0.0020<0.0020PT

8/16/2022

0.039

0.00500.0026BED1

8/16/2022<0.0020<0.0020<0.0020BED1

4/27/2022<0.0020<0.0020<0.0020BED1

2/1/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 216 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/8/2021<0.0020<0.0020<0.0020BED1

8/26/2021<0.0020<0.0020<0.0020PT

8/26/2021

0.035

0.00470.0023

BED1

5/25/2021<0.0020<0.0020<0.0020BED1

2/25/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 10/13/2020 - Fe.
BED1

10/5/2020<0.0020<0.0020<0.0020PT

8/4/2020

0.032

0.0042<0.002

BED1

8/4/2020<0.002<0.002<0.002

BED1

3/12/2020<0.0020<0.0020<0.0020

BED1

11/27/2019<0.0020<0.0020<0.0020BED1

9/11/2019<0.0020<0.0020<0.0020PT

9/11/2019

0.034

0.0036<0.0020BED1

5/10/2019<0.0020<0.0020<0.0020BED1

3/18/2019<0.0020<0.0020<0.0020BED1

12/10/2018<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 217 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/9/2018

0.029

0.0037<0.0020BED1

7/9/2018<0.0020<0.0020<0.0020

10/26/2017

0.026

0.004

<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.00220.0051

0.029

0.016

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/10/2018.

Location: 205
BED1

6/7/2024<0.0020<0.0020<0.0020BED1

3/14/2024<0.0020<0.0020<0.0020

BED1

11/29/2023<0.0020<0.0020<0.0020PT

9/12/2023

0.048

0.0081 J

0.013

BED1

9/12/2023<0.0020<0.0020<0.0020BED1

6/1/2023<0.0020<0.0020<0.0020BED1

3/14/2023<0.0020<0.0020<0.0020

Carbon Changeout 03/14/2023 - 5yr.
BED1

11/22/2022<0.0020<0.0020<0.0020PT

8/24/2022

0.049

0.00660.0069BED1

8/24/2022<0.0020<0.0020<0.0020

BED1-DUP

5/10/2022<0.0020<0.0020<0.0020BED1

5/10/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 218 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/7/2022<0.0020<0.0020<0.0020

BED1

11/15/2021<0.0020<0.0020<0.0020BED1

9/2/2021<0.0020<0.0020<0.0020PT

9/2/2021

0.072

0.0070 J

0.013

BED1

5/12/2021<0.0020<0.0020<0.0020

BED1-DUP

5/12/2021<0.0020<0.0020<0.0020BED1

2/11/2021<0.0020<0.0020<0.0020

BED1-DUP

11/9/2020<0.0020<0.0020<0.0020BED1

11/9/2020<0.0020<0.0020<0.0020PT

8/25/2020

0.060

0.0064

0.022

BED1

8/25/2020<0.0020<0.0020<0.0020BED1

6/16/2020<0.0020<0.0020<0.0020BED1

1/30/2020<0.0020<0.0020<0.0020

BED1-DUP

10/16/2019<0.0020<0.0020<0.0020BED1

10/16/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 219 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/25/2019

0.081

0.0078

0.021

BED1

7/25/2019<0.0020<0.0020<0.0020BED1

4/9/2019<0.0020<0.0020<0.0020BED1

1/8/2019<0.0020<0.0020<0.0020BED1

10/25/2018<0.0020<0.0020<0.0020PT

7/12/2018

0.061

0.00510.0043

BED1

7/12/2018<0.0020<0.0020<0.0020BED1

4/12/2018<0.0020<0.0020<0.0020

10/26/2017

0.068

0.00430.0036

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0025<0.0020

0.056

0.036

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/17/2018.

Location: 206
BED1

4/24/2024<0.0020<0.0020<0.0020BED1

2/8/2024<0.0020<0.0020<0.0020BED1

11/14/2023<0.0020<0.0020<0.0020

Carbon Changeout 11/14/2023 - 5yr.
PT

8/30/2023

0.063

0.0034

0.012

BED1

8/30/2023<0.0020<0.0020<0.0020BED2

6/7/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 220 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/7/2023

0.0024<0.0020<0.0020

BED1

3/21/2023<0.0020<0.0020<0.0020BED1

12/14/2022<0.0020<0.0020<0.0020BED1

9/14/2022<0.0020<0.0020<0.0020PT

9/14/2022

0.065

0.0037

0.015

BED1

6/2/2022<0.0020<0.0020<0.0020BED1

3/7/2022<0.0020<0.0020<0.0020BED1

12/8/2021<0.0020<0.0020<0.0020BED1

9/1/2021<0.0020<0.0020<0.0020PT

9/1/2021

0.050

0.0027 J

0.0080BED1

6/22/2021<0.0020<0.0020<0.0020BED1

2/9/2021<0.0020<0.0020<0.0020BED1

11/10/2020<0.0020<0.0020<0.0020

BED1-DUP

11/10/2020<0.0020<0.0020<0.0020BED1

9/10/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 221 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PT

9/10/2020<0.0020<0.0020<0.0020BED1

6/30/2020<0.0020<0.0020<0.0020BED1

3/16/2020<0.0020<0.0020<0.0020BED1

10/28/2019<0.0020<0.0020<0.0020PT

8/5/2019

0.070

0.0034

0.012

BED1

8/5/2019<0.0020<0.0020<0.0020

BED1-DUP

4/15/2019<0.0020<0.0020<0.0020BED1

4/15/2019<0.0020<0.0020<0.0020BED1

1/17/2019<0.0020<0.0020<0.0020BED1

10/29/2018<0.0020<0.0020<0.0020BED1

7/12/2018<0.0020<0.0020<0.0020PT

7/12/2018

0.10

0.00450.019

PT

5/8/2018<0.010BED1

5/8/2018<0.010BED1

4/16/2018<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

10/26/2017

0.098

0.00430.019

NEtFOSAA NMeFOSAA<0.020<0.020PFBS
0.0038

PFHxS

PFHxA

PFHpA

<0.0020

0.075

0.044

PFDA
<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/31/2018.

Location: 207
BED1

5/10/2024<0.0020<0.0020<0.0020BED1

2/12/2024<0.0020<0.0020<0.0020

BED1

11/16/2023<0.0020<0.0020<0.0020BED1

9/5/2023<0.0020<0.0020<0.0020PT

9/5/2023

0.055

0.00770.0035BED1

5/31/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 05/31/2023 - 5yr.
BED1

1/10/2023<0.0020<0.0020<0.0020BED1

10/4/2022<0.0020<0.0020<0.0020BED1

7/18/2022<0.0020<0.0020<0.0020PT

7/18/2022

0.050

0.00760.0030

BED1-DUP

4/14/2022<0.0020<0.0020<0.0020BED1

4/14/2022<0.0020<0.0020<0.0020

BED1

1/20/2022<0.0020<0.0020<0.0020

BED1-DUP

1/20/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/18/2021<0.0020<0.0020<0.0020

BED1-DUP

10/18/2021<0.0020<0.0020<0.0020BED1

8/2/2021<0.0020<0.0020<0.0020PT

8/2/2021

0.059

0.015

0.0046BED1

5/4/2021<0.0020<0.0020<0.0020BED1

2/1/2021<0.0020<0.0020<0.0020

BED1

10/20/2020<0.0020<0.0020<0.0020BED1

8/19/2020<0.0020<0.0020<0.0020PT

8/19/2020

0.052

0.00640.0030BED1

6/11/2020<0.0020<0.0020<0.0020BED1

1/17/2020<0.0020<0.0020<0.0020BED1

10/4/2019<0.0020<0.0020<0.0020PT

7/8/2019

0.054

0.00630.0029BED1

7/8/2019<0.0020<0.0020<0.0020BED1

4/3/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/15/2019<0.0020<0.0020<0.0020BED1

10/29/2018<0.0020<0.0020<0.0020PT

7/17/2018

0.059

0.00710.0021BED1

7/17/2018<0.0020<0.0020<0.0020BED1

4/17/2018<0.0020<0.0020<0.0020

10/27/2017

0.054

0.00880.0029NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.00450.0027

0.047

0.028

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/02/2018.

Location: 208
BED1-DUP

5/21/2024<0.0020<0.0020<0.0020

BED1

5/21/2024<0.0020<0.0020<0.0020

BED1-DUP

3/26/2024<0.0020<0.0020<0.0020BED1

3/26/2024<0.0020<0.0020<0.0020BED1

11/1/2023<0.0020<0.0020<0.0020

BED1-DUP

11/1/2023<0.0020<0.0020<0.0020PT

8/29/2023

0.051

0.0021<0.0020BED1

8/29/2023<0.0020<0.0020<0.0020BED1

6/13/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 06/13/2023 - 5yr.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 225 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/18/2023<0.0020<0.0020<0.0020

BED1-DUP

10/14/2022<0.0020<0.0020<0.0020BED1

10/14/2022<0.0020<0.0020<0.0020PT

7/25/2022

0.040<0.0020<0.0020BED1

7/25/2022<0.0020<0.0020<0.0020

BED1-DUP

4/26/2022<0.0020<0.0020<0.0020BED1

4/26/2022<0.0020<0.0020<0.0020BED1

1/31/2022<0.0020<0.0020<0.0020BED1

10/29/2021<0.0020<0.0020<0.0020PT

8/16/2021

0.046

0.0021<0.0020BED1

8/16/2021<0.0020<0.0020<0.0020BED1

5/18/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020

BED1

11/19/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.038<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 226 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/16/2020<0.0020<0.0020<0.0020BED1

6/5/2020<0.0020<0.0020<0.0020BED1

1/30/2020<0.0020<0.0020<0.0020BED1

10/16/2019<0.0020<0.0020<0.0020PT

7/23/2019

0.036<0.0020<0.0020BED1

7/23/2019<0.0020<0.0020<0.0020BED1

4/15/2019<0.0020<0.0020<0.0020BED1

1/24/2019<0.0020<0.0020<0.0020BED1

10/29/2018<0.0020<0.0020<0.0020PT

7/13/2018

0.022<0.0020<0.0020BED1

7/13/2018<0.0020<0.0020<0.0020

BED1

4/20/2018<0.0020<0.0020<0.0020

10/27/2017

0.032<0.0020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0023

0.034

0.016

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/13/2018.

Location: 209
BED1

5/23/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/16/2024<0.0020<0.0020<0.0020BED1

11/2/2023<0.0020<0.0020<0.0020BED1

8/22/2023<0.0020<0.0020<0.0020PT

8/22/2023

0.053

0.00480.0033

BED1

6/1/2023<0.0020<0.0020<0.0020BED1

2/23/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/23/2023 - 5yr.
BED1

11/16/2022<0.0020<0.0020<0.0020PT

8/8/2022

0.045

0.0042 J

0.0026BED1

8/8/2022<0.0020<0.0020<0.0020BED1

5/9/2022<0.0020<0.0020<0.0020BED1

2/8/2022<0.0020<0.0020<0.0020BED1

11/9/2021<0.0020<0.0020<0.0020PT

8/25/2021

0.044

0.00510.0025

BED1-DUP

8/25/2021<0.0020<0.0020<0.0020BED1

8/25/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 228 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/11/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020BED1

12/3/2020<0.0020<0.0020<0.0020BED1

9/28/2020<0.0020<0.0020<0.0020PT

9/28/2020

0.037

0.0047<0.0020BED1

6/17/2020<0.0020<0.0020<0.0020BED1

3/9/2020<0.0020<0.0020<0.0020PT

9/27/2019

0.040

0.00450.0022

BED1

9/27/2019<0.0020<0.0020<0.0020BED1

4/24/2019<0.0020<0.0020<0.0020BED1

2/7/2019<0.0020<0.0020<0.0020BED1

11/8/2018<0.0020<0.0020<0.0020PT

7/10/2018

0.039

0.0041<0.0020BED1

7/10/2018<0.0020<0.0020<0.0020

BED1

4/20/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 229 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

10/27/2017

0.039

0.0036<0.0020<0.020<0.0200.0036<0.0020<0.020<0.020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.0032

0.037

0.018

<0.0020<0.0020

0.003

0.036

0.02

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/19/2018.
-DUP

10/27/2017

0.038

GAC installed 01/19/2018.

Location: 210
BED1

5/17/2022<0.0020

Replacement well installed (Regulatory Location ID #679). Qualified for treatment so GAC System transferred to replacement well.
BED1

2/16/2022<0.0020<0.0020<0.0020

BED1

11/15/2021<0.0020<0.0020<0.0020BED1

8/30/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.067

0.0071

0.013

BED1

6/7/2021<0.0020<0.0020<0.0020

BED1-DUP

6/7/2021<0.0020<0.0020<0.0020BED1

3/10/2021<0.0020<0.0020<0.0020

BED1

11/16/2020<0.0020<0.0020<0.0020BED1

9/9/2020<0.0020<0.0020<0.0020PT

9/9/2020

0.064

0.00520.0084

BED1

6/19/2020<0.0020<0.0020<0.0020BED1

3/6/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 230 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/22/2019<0.0020<0.0020<0.0020PT

8/23/2019

0.055

0.00470.0064

BED1

8/23/2019<0.0020<0.0020<0.0020BED1

4/30/2019<0.0020<0.0020<0.0020BED1

2/22/2019<0.0020<0.0020<0.0020BED1

11/14/2018<0.0020<0.0020<0.0020PT

8/23/2018

0.056

0.00770.0094

BED1

8/23/2018<0.0020<0.0020<0.0020

10/27/2017

0.068

0.00580.0074NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0034<0.0020

0.042

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/30/2018.

Location: 211
BED1

5/31/2024<0.0020<0.0020<0.0020BED1

2/28/2024<0.0020<0.0020<0.0020

BED1

11/29/2023<0.0020<0.0020<0.0020PT

8/28/2023

0.041

0.0084

0.010

BED1

8/28/2023<0.0020<0.0020<0.0020BED1

6/7/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 06/07/2023 - 5yr.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/20/2023<0.0020<0.0020<0.0020BED1

11/14/2022<0.0020<0.0020<0.0020PT

9/7/2022

0.042

0.011

0.0096BED1

9/7/2022<0.0020<0.0020<0.0020BED1

6/7/2022<0.0020<0.0020<0.0020BED1

3/3/2022<0.0020<0.0020<0.0020BED1

12/2/2021<0.0020<0.0020<0.0020PT

9/1/2021

0.048

0.011 J

0.0094BED1

9/1/2021<0.0020<0.0020<0.0020BED1

6/28/2021<0.0020<0.0020<0.0020

BED1-DUP

6/28/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020BED1

12/3/2020<0.0020<0.0020<0.0020BED1

9/21/2020<0.0020<0.0020<0.0020

BED1-DUP

9/21/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/21/2020

0.046

0.011

0.0070BED1

6/29/2020<0.0020<0.0020<0.0020BED1

12/5/2019<0.0020<0.0020<0.0020PT

9/12/2019

0.063

0.014

0.0097BED1

9/12/2019<0.0020<0.0020<0.0020BED1

5/30/2019<0.0020<0.0020<0.0020BED1

3/11/2019<0.0020<0.0020<0.0020BED1

11/13/2018<0.0020<0.0020<0.0020PT

8/30/2018

0.052

0.010

0.0075BED1

8/30/2018<0.0020<0.0020<0.0020BED1

4/16/2018<0.0020<0.0020<0.0020

10/27/2017

0.06

0.01

0.0077

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0021<0.0020

0.038

0.022

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/01/2018.

Location: 212-DUP

5/20/2024<0.0020<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
-DUP

Date

PFOA

PFOS

PFNA

3/19/2021<0.0020<0.0020<0.0020

3/19/2021<0.0020<0.0020<0.0020

10/30/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 213
BED1

4/12/2024<0.0020<0.0020<0.0020BED1

1/16/2024<0.0020<0.0020<0.0020BED1

10/11/2023<0.0020<0.0020<0.0020PT

7/25/2023

0.16<0.0020

0.023

BED1

7/25/2023<0.0020<0.0020<0.0020BED1

4/24/2023<0.0020<0.0020<0.0020BED1

3/23/2023<0.0020<0.0020<0.0020

Carbon Changeout 03/23/2023 - 5yr.
BED1

10/25/2022<0.0020<0.0020<0.0020PT

8/16/2022

0.019<0.00200.0027BED1

8/16/2022<0.0020<0.0020<0.0020BED1

5/9/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/15/2022<0.0020<0.0020<0.0020

BED1

11/16/2021<0.0020<0.0020<0.0020BED1

8/30/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.032<0.00200.0040BED1

5/13/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020BED1

10/29/2020<0.0020<0.0020<0.0020

BED1-DUP

8/31/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.18<0.0020

0.016

BED1

8/31/2020<0.0020<0.0020<0.0020BED1

6/11/2020<0.0020<0.0020<0.0020BED1

2/17/2020<0.0020<0.0020<0.0020BED1

11/12/2019<0.0020<0.0020<0.0020PT

9/6/2019

0.039<0.00200.0035BED1

9/6/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/20/2019<0.0020<0.0020<0.0020BED1

1/8/2019<0.0020<0.0020<0.0020

BED2

10/22/2018<0.0020<0.0020<0.0020BED1

10/22/2018

0.045<0.00200.0034PT

7/10/2018

0.23<0.0020

0.011

BED1

7/10/2018<0.0020<0.0020<0.0020BED1

4/12/2018<0.0020<0.0020<0.0020

10/30/2017

0.047<0.00200.0026

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.0020

0.024

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/10/2018.

Location: 214
BED1

4/2/2024<0.0020<0.0020<0.0020BED1

1/4/2024<0.0020<0.0020<0.0020BED1

12/7/2023<0.0020<0.0020<0.0020BED1

8/9/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/09/2023 - 5yr.
PT

8/9/2023

0.026

0.0021<0.0020

Carbon Changeout 08/09/2023 - 5yr.
BED1

5/1/2023<0.0020<0.0020<0.0020BED1

3/15/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

11/21/2022<0.0020<0.0020<0.0020

BED1

11/21/2022<0.0020<0.0020<0.0020PT

7/5/2022

0.027

0.0023<0.0020BED1

7/5/2022<0.0020<0.0020<0.0020BED1

4/5/2022<0.0020<0.0020<0.0020

BED1-DUP

4/5/2022<0.0020<0.0020<0.0020

BED1-DUP

1/4/2022<0.0020<0.0020<0.0020BED1

1/4/2022<0.0020<0.0020<0.0020BED1

10/5/2021<0.0020<0.0020<0.0020PT

7/8/2021

0.024

0.0021<0.0020BED1

7/8/2021<0.0020<0.0020<0.0020

BED1-DUP

7/8/2021<0.0020<0.0020<0.0020BED1

4/1/2021<0.0020<0.0020<0.0020

BED1-DUP

4/1/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020

BED1-DUP

1/11/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/10/2020<0.0020<0.0020<0.0020PT

8/17/2020

0.024

0.0032<0.0020BED1

8/17/2020<0.0020<0.0020<0.0020BED1

6/22/2020<0.0020<0.0020<0.0020BED1

3/17/2020<0.0020<0.0020<0.0020BED1

10/15/2019<0.0020<0.0020<0.0020BED1

7/15/2019<0.0020<0.0020<0.0020PT

7/15/2019

0.028

0.0025<0.0020BED1

6/3/2019<0.0020<0.0020<0.0020BED1

3/18/2019

0.0026<0.0020<0.0020BED1

12/12/2018<0.0020<0.0020<0.0020PT

8/27/2018

0.018

0.0032<0.0020BED1

8/27/2018<0.0020<0.0020<0.0020

10/30/2017

0.017<0.0020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.00200.018

0.0084<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/20/2018.

Location: 215
BED1-DUP

4/17/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/17/2024<0.0020<0.0020<0.0020BED1

1/12/2024<0.0020<0.0020<0.0020

BED1-DUP

10/25/2023<0.0020<0.0020<0.0020BED1

10/25/2023<0.0020<0.0020<0.0020PT

8/23/2023

0.068

0.010

0.0075

BED1-DUP

8/23/2023<0.0020<0.0020<0.0020BED1

8/23/2023<0.0020<0.0020<0.0020

BED1-DUP

6/7/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 03/29/2023 - 5yr.
BED1

6/7/2023<0.0020<0.0020<0.0020

Carbon Changeout 03/29/2023 - 5yr.
BED1-DUP

10/19/2022<0.0020<0.0020<0.0020

BED1

10/19/2022<0.0020<0.0020<0.0020BED1

8/18/2022

0.0024<0.0020<0.0020PT

8/18/2022

0.057

0.010

0.0060BED2

8/18/2022<0.0020<0.0020<0.0020

BED2

4/27/2022<0.0020<0.0020<0.0020

BED1-DUP

4/27/2022

0.0028 J<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/27/2022

0.0056 J<0.0020<0.0020BED2

2/2/2022<0.0020<0.0020<0.0020

BED1-DUP

2/2/2022

0.012<0.0020<0.0020BED1

2/2/2022

0.011<0.0020<0.0020BED1

11/4/2021<0.0020<0.0020<0.0020

BED1

8/20/2021<0.0020<0.0020<0.0020PT

8/20/2021

0.070

0.011

0.0062

BED1-DUP

8/20/2021<0.0020<0.0020<0.0020BED1

5/18/2021<0.0020<0.0020<0.0020BED1

2/26/2021<0.0020<0.0020<0.0020

BED1

10/19/2020<0.0020<0.0020<0.0020PT

8/17/2020

0.053

0.012

0.0055

BED1-DUP

8/17/2020<0.0020<0.0020<0.0020BED1

8/17/2020<0.0020<0.0020<0.0020BED1

6/10/2020<0.0020<0.0020<0.0020BED1

1/24/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/7/2019<0.0020<0.0020<0.0020PT

7/10/2019

0.063

0.00990.0042

BED1

7/10/2019<0.0020<0.0020<0.0020BED1

4/8/2019<0.0020<0.0020<0.0020

BED1-DUP

1/16/2019<0.0020<0.0020<0.0020BED1

1/16/2019<0.0020<0.0020<0.0020BED1

10/29/2018<0.0020<0.0020<0.0020

BED1-DUP

10/29/2018<0.0020<0.0020<0.0020BED1

7/18/2018<0.0020<0.0020<0.0020PT

7/18/2018

0.050

0.00870.0035

BED1-DUP

7/18/2018<0.0020<0.0020<0.0020

BED1-DUP

4/13/2018<0.0020<0.0020<0.0020BED1

4/13/2018<0.0020<0.0020<0.0020

10/30/2017

0.049

0.00920.0033<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020

0.004

0.044

0.023

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/16/2018.

Location: 216
BED1

5/17/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/18/2024<0.0020<0.0020<0.0020BED1

10/13/2023<0.0020<0.0020<0.0020PT

8/14/2023

0.043 J

<0.0020 UJ 0.0021 J

BED1

8/14/2023<0.0020<0.0020<0.0020BED1

5/16/2023<0.0020<0.0020<0.0020BED1

3/1/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 03/01/2023 - 5yr.
BED1

10/5/2022<0.0020 UJ <0.0020<0.0020 UJ

PT

7/13/2022

0.037<0.0020<0.0020BED1

7/13/2022<0.0020<0.0020<0.0020BED2

4/6/2022<0.0020<0.0020<0.0020

BED1-DUP

4/6/2022

0.0024<0.0020<0.0020BED1

4/6/2022<0.0020<0.0020<0.0020BED1

1/5/2022<0.0020<0.0020<0.0020BED1

10/7/2021<0.0020<0.0020<0.0020BED1

7/14/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/14/2021

0.049

0.00200.0025BED1

4/12/2021<0.0020<0.0020<0.0020

BED1

1/21/2021

0.0034<0.0020<0.0020

BED2

1/21/2021<0.0020<0.0020<0.0020BED1

10/7/2020<0.0020<0.0020<0.0020PT

7/28/2020

0.036<0.00200.0025

BED1

7/28/2020<0.0020<0.0020<0.0020BED1

6/5/2020

0.0042<0.0020<0.0020BED1

2/10/2020<0.0020<0.0020<0.0020BED1

10/29/2019<0.0020<0.0020<0.0020PT

8/21/2019

0.049

0.00570.0029BED1

8/21/2019<0.0020<0.0020<0.0020BED1

5/8/2019<0.0020<0.0020<0.0020BED1

3/7/2019<0.0020<0.0020<0.0020BED1

12/13/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

7/24/2018<0.0020<0.0020<0.0020<0.0040PT

7/24/2018

0.058

0.00290.0042

0.048

BED1

4/16/2018<0.0020<0.0020<0.0020

10/30/2017

0.027<0.0020<0.0020<0.020<0.020PFBS<0.0020

PFHxS<0.0020

PFHxA

0.032

PFHpA

0.018

PFDA

<0.0020

PFUnA<0.0020

PFDoA<0.0020

PFTriA<0.0020

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

GAC installed 01/19/2018.

Location: 217
BED1

5/17/2024<0.0020<0.0020<0.0020

BED1

2/21/2024<0.0020<0.0020<0.0020BED1

11/10/2023<0.0020<0.0020<0.0020PT

8/21/2023

0.066

0.0036

0.014

BED1

8/21/2023<0.0020<0.0020<0.0020BED1

6/5/2023<0.0020<0.0020<0.0020BED1

3/31/2023<0.0020<0.0020<0.0020

Carbon Changeout 03/31/2023 - 5yr.
BED1

10/17/2022<0.0020<0.0020<0.0020BED1

7/18/2022

0.0042<0.0020<0.0020BED2

7/18/2022<0.0020<0.0020<0.0020PT

7/18/2022

0.062

0.00310.010

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/19/2022<0.0020<0.0020<0.0020BED1

1/24/2022<0.0020<0.0020<0.0020

BED1-DUP

1/24/2022<0.0020<0.0020<0.0020

BED1-DUP

10/12/2021<0.0020<0.0020<0.0020BED1

10/12/2021<0.0020<0.0020<0.0020BED1

7/19/2021

0.015<0.0020<0.0020

BED2

7/19/2021<0.0020<0.0020<0.0020PT

7/19/2021

0.080

0.0035

0.015

BED1

4/28/2021<0.0020<0.0020<0.0020BED1

2/4/2021<0.0020<0.0020<0.0020BED1

10/29/2020<0.0020<0.0020<0.0020BED1

8/27/2020<0.0020<0.0020<0.0020PT

8/27/2020

0.091

0.0037 J

0.015 J

BED1

6/12/2020<0.0020<0.0020<0.0020BED1

2/6/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/29/2019<0.0020<0.0020<0.0020BED1

8/21/2019<0.0020<0.0020<0.0020PT

8/21/2019

0.091

0.0064

0.016

BED1

5/7/2019<0.0020<0.0020<0.0020BED1

2/4/2019<0.0020<0.0020<0.0020BED1

11/2/2018<0.0020<0.0020<0.0020PT

7/13/2018

0.093

0.0037

0.014

BED1

7/13/2018<0.0020<0.0020<0.0020BED1

4/13/2018<0.0020<0.0020<0.0020

10/30/2017

0.089

0.004

0.013

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.003<0.0020

0.076

0.046

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/16/2018.

Location: 218
BED1

4/24/2024<0.0020<0.0020<0.0020BED1

2/1/2024<0.0020<0.0020<0.0020BED1

11/9/2023<0.0020<0.0020<0.0020PT

8/17/2023

0.080

0.0076

0.011

BED1

8/17/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/8/2023<0.0020<0.0020BED1

2/15/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 02/15/2023 - 5yr.
BED1

10/25/2022<0.0020<0.0020<0.0020PT

8/17/2022

0.075

0.00630.0073

BED1

8/17/2022<0.0020<0.0020<0.0020BED1

4/28/2022<0.0020<0.0020<0.0020BED1

2/1/2022<0.0020<0.0020<0.0020BED1

10/22/2021<0.0020<0.0020<0.0020

BED1-DUP

10/22/2021<0.0020<0.0020<0.0020BED1

7/23/2021<0.0020<0.0020<0.0020PT

7/23/2021

0.086

0.00580.0075

BED1

4/23/2021<0.0020<0.0020<0.0020BED1

1/26/2021<0.0020<0.0020<0.0020BED1

10/7/2020<0.0020<0.0020<0.0020

BED1-DUP

10/7/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/3/2020

0.063

0.00650.0072

BED1

8/3/2020<0.002<0.002<0.002

BED1

6/5/2020<0.0020<0.0020<0.0020BED1

2/24/2020<0.0020<0.0020<0.0020

BED1

10/18/2019<0.0020<0.0020<0.0020PT

7/15/2019

0.082

0.00780.0074

BED1

7/15/2019<0.0020<0.0020<0.0020BED1

4/11/2019<0.0020<0.0020<0.0020

BED1-DUP

1/23/2019<0.0020<0.0020<0.0020

BED1

1/23/2019<0.0020<0.0020<0.0020

BED1-DUP

11/5/2018<0.0020<0.0020<0.0020BED1

11/5/2018<0.0020<0.0020<0.0020PT

7/30/2018

0.073

0.00970.0076

BED1-DUP

7/30/2018<0.0020<0.0020<0.0020BED1

7/30/2018<0.0020<0.0020<0.0020

BED1-DUP

4/12/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

4/12/2018<0.0020<0.0020<0.0020

10/31/2017

0.078

0.00750.0069NEtFOSAA NMeFOSAA<0.020<0.020PFBS

0.0029

PFHxS

PFHxA

PFHpA

0.0024

0.058

0.037

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/25/2018.

Location: 219
BED1

6/4/2024<0.0020<0.0020<0.0020BED1

3/11/2024<0.0020<0.0020<0.0020BED1

12/15/2023<0.0020<0.0020<0.0020PT

8/15/2023

0.060

0.0032<0.0020BED1

8/15/2023<0.0020<0.0020<0.0020BED1

5/24/2023<0.0020<0.0020<0.0020BED1

2/14/2023<0.0020<0.0020<0.0020

Carbon Changeout 02/14/2023 - 5yr.
BED1

11/15/2022<0.0020<0.0020<0.0020PT

9/14/2022

0.050

0.0030<0.0020BED1

9/14/2022<0.0020<0.0020<0.0020

BED1-DUP

6/7/2022<0.0020<0.0020<0.0020BED1

6/7/2022<0.0020<0.0020<0.0020BED1

2/17/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/22/2021<0.0020<0.0020<0.0020

BED1-DUP

11/22/2021<0.0020<0.0020<0.0020

BED1

9/20/2021<0.0020<0.0020<0.0020

BED1-DUP

9/20/2021<0.0020<0.0020<0.0020PT

9/20/2021

0.041

0.0022<0.0020BED1

4/29/2021<0.0020<0.0020<0.0020BED1

2/4/2021<0.0020<0.0020<0.0020

BED1-DUP

10/27/2020<0.0020<0.0020<0.0020BED1

10/27/2020<0.0020<0.0020<0.0020PT

8/19/2020

0.053

0.0028<0.0020BED1

8/19/2020<0.0020<0.0020<0.0020BED1

6/5/2020<0.0020<0.0020<0.0020BED1

1/24/2020<0.0020<0.0020<0.0020BED1

10/8/2019<0.0020<0.0020<0.0020BED1

7/9/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/9/2019

0.040

0.0026<0.0020BED1

4/3/2019<0.0020<0.0020<0.0020BED1

1/11/2019<0.0020<0.0020<0.0020BED1

10/24/2018<0.0020<0.0020<0.0020PT

7/11/2018

0.041

0.0028<0.0020BED1

7/11/2018<0.0020<0.0020<0.0020BED1

4/12/2018<0.0020<0.0020<0.0020

10/31/2017

0.042

0.003

<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.0020

0.042

0.023

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/25/2018.

Location: 220
BED1

5/10/2024<0.0020<0.0020<0.0020

BED1-DUP

5/10/2024<0.0020<0.0020<0.0020

BED1-DUP

1/22/2024<0.0020<0.0020<0.0020BED1

1/22/2024<0.0020<0.0020<0.0020BED1

10/24/2023<0.0020<0.0020<0.0020BED1

7/10/2023<0.0020<0.0020<0.0020

BED1-DUP

7/10/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/10/2023

0.027<0.0020<0.0020

BED1-DUP

4/3/2023<0.0020<0.0020<0.0020BED1

4/3/2023<0.0020<0.0020<0.0020

BED1-DUP

1/9/2023<0.0020<0.0020<0.0020BED1

1/9/2023<0.0020<0.0020<0.0020

BED1-DUP

10/12/2022<0.0020<0.0020<0.0020BED1

10/12/2022<0.0020<0.0020<0.0020PT

7/25/2022

0.034<0.0020<0.0020

BED1-DUP

7/25/2022<0.0020<0.0020<0.0020BED1

7/25/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

4/18/2022<0.0020<0.0020<0.0020BED1

1/24/2022<0.0020<0.0020<0.0020

BED1-DUP

1/24/2022<0.0020<0.0020<0.0020BED1

10/6/2021<0.0020<0.0020<0.0020

BED1-DUP

10/6/2021<0.0020<0.0020<0.0020PT

7/19/2021

0.026<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

7/19/2021<0.0020<0.0020<0.0020BED1

7/19/2021<0.0020<0.0020<0.0020BED1

4/6/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020BED1

10/5/2020<0.0020<0.0020<0.0020PT

8/3/2020

0.023<0.002<0.002

BED1

8/3/2020<0.002<0.002<0.002

BED1

6/4/2020<0.0020<0.0020<0.0020

BED1-DUP

6/4/2020<0.0020<0.0020<0.0020BED1

1/24/2020<0.0020<0.0020<0.0020

8/14/2019

0.021<0.0020<0.0020<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.024

0.010

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 10/21/2019.

-DUP

4/23/2018

0.0091<0.0020<0.0020<0.020<0.020<0.0020<0.00200.014

0.0062<0.0020<0.0020<0.0020<0.0020<0.0020

4/23/2018

0.0094<0.0020<0.0020<0.020<0.020<0.0020<0.00200.015

0.0059<0.0020<0.0020<0.0020<0.0020<0.0020

11/3/2017

0.011<0.0020<0.0020<0.020<0.020<0.0020<0.00200.018

0.0069<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 221
BED1

9/24/2018

GAC removed 10/19/2018 at owner's request. Permanent bottled water.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
PT

Date

PFOA

PFOS

9/24/2018

0.050

0.0047PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

0.0029

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC removed 10/19/2018 at owner's request. Permanent bottled water.
BED1

4/18/2018<0.0020<0.0020<0.0020

11/3/2017

0.046

0.00530.0024<0.020<0.020<0.00200.0029

0.042

0.024

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/21/2018.

Location: 222
BED1

5/7/2024<0.0020<0.0020<0.0020BED1

2/15/2024<0.0020<0.0020<0.0020

BED1-DUP

2/15/2024<0.0020<0.0020<0.0020BED1

11/6/2023<0.0020<0.0020<0.0020

BED1-DUP

11/6/2023<0.0020<0.0020<0.0020BED1

8/23/2023<0.0020<0.0020<0.0020PT

8/23/2023

0.10

0.0050

0.011

BED1

5/15/2023<0.0020<0.0020<0.0020BED1

2/16/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 02/16/2023 - 5yr.
BED1

10/20/2022<0.0020<0.0020<0.0020PT

8/9/2022

0.059

0.0049 J

0.0060BED1

8/9/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/25/2022<0.0020<0.0020<0.0020BED1

2/1/2022<0.0020<0.0020<0.0020BED1

10/11/2021<0.0020<0.0020<0.0020BED1

7/19/2021<0.0020<0.0020<0.0020PT

7/19/2021

0.065

0.010

0.0074BED1

4/15/2021<0.0020<0.0020<0.0020

BED1

1/21/2021<0.0020<0.0020<0.0020

BED1-DUP

10/14/2020<0.0020<0.0020<0.0020BED1

10/14/2020<0.0020<0.0020<0.0020BED1

8/6/2020<0.0020<0.0020<0.0020PT

8/6/2020

0.058

0.00610.0053BED1

6/8/2020<0.0020<0.0020<0.0020BED1

1/27/2020

0.0026<0.0020<0.0020BED1

10/11/2019<0.0020<0.0020<0.0020BED1

7/10/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/10/2019

0.060

0.012

0.0077BED1

4/5/2019<0.0020<0.0020<0.0020BED1

1/10/2019<0.0020<0.0020<0.0020

BED1-DUP

10/25/2018<0.0020<0.0020<0.0020BED1

10/25/2018<0.0020<0.0020<0.0020PT

7/10/2018

0.047

0.00770.0065

BED1

7/10/2018<0.0020<0.0020<0.0020BED1

4/17/2018<0.0020<0.0020<0.0020

11/3/2017

0.058

0.00590.0088NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0025<0.0020

0.043

0.027

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/18/2018.

Location: 223
BED1-DUP

5/13/2024<0.0020<0.0020<0.0020BED1

5/13/2024<0.0020<0.0020<0.0020BED1

1/12/2024<0.0020<0.0020<0.0020

BED1-DUP

10/13/2023<0.0020<0.0020<0.0020BED1

10/13/2023<0.0020<0.0020<0.0020PT

8/7/2023

0.036

0.00770.0026

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/7/2023<0.0020<0.0020BED1

5/16/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 05/16/2023 - 5yr.
BED1-DUP

1/11/2023<0.0020<0.0020<0.0020BED1

1/11/2023<0.0020<0.0020<0.0020BED1

10/12/2022<0.0020<0.0020<0.0020PT

7/11/2022

0.029

0.00760.0020BED1

7/11/2022<0.0020<0.0020<0.0020BED1

4/6/2022<0.0020<0.0020<0.0020BED1

1/6/2022<0.0020<0.0020<0.0020

BED1-DUP

10/8/2021<0.0020<0.0020<0.0020BED1

10/8/2021<0.0020<0.0020<0.0020PT

7/14/2021

0.032

0.00860.0020BED1

7/14/2021<0.0020<0.0020<0.0020BED1

4/13/2021<0.0020<0.0020<0.0020BED1

1/22/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/19/2020<0.0020<0.0020<0.0020PT

8/12/2020

0.026

0.0084<0.0020BED1

8/12/2020<0.0020<0.0020<0.0020BED1

6/9/2020<0.0020<0.0020<0.0020BED1

1/27/2020<0.0020<0.0020<0.0020BED1

10/14/2019<0.0020<0.0020<0.0020PT

7/22/2019

0.033

0.0076<0.0020BED1

7/22/2019<0.0020<0.0020<0.0020BED1

4/15/2019<0.0020<0.0020<0.0020

BED1

1/23/2019<0.0020<0.0020<0.0020BED1

10/31/2018<0.0020<0.0020<0.0020BED1

7/17/2018<0.0020<0.0020<0.0020PT

7/17/2018

0.023

0.0078<0.0020

BED1-DUP

4/16/2018<0.0020<0.0020<0.0020BED1

4/16/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

11/3/2017

0.024

0.0075<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

0.0044

0.026

0.011

PFDA
<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 02/07/2018.

Location: 224
BED1

4/5/2024<0.0020<0.0020<0.0020BED1

1/18/2024<0.0020<0.0020<0.0020BED1

10/25/2023<0.0020<0.0020<0.0020PT

8/17/2023

0.063

0.00420.0062

BED1

8/17/2023<0.0020<0.0020<0.0020BED1

5/31/2023<0.0020<0.0020<0.0020

Carbon Changeout 05/31/2023 - 5yr.
BED1

3/8/2023<0.0020<0.0020<0.0020BED1

12/13/2022<0.0020<0.0020<0.0020

BED1-DUP

12/13/2022<0.0020<0.0020<0.0020PT

9/19/2022

0.051<0.00200.0024

BED1

9/19/2022<0.0020<0.0020<0.0020BED1

5/3/2022<0.0020<0.0020<0.0020BED1

3/22/2022<0.0020<0.0020<0.0020BED1

12/8/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/31/2021<0.0020<0.0020<0.0020PT

8/31/2021

0.076

0.013

0.0068BED1

5/5/2021<0.0020<0.0020<0.0020BED1

2/11/2021<0.0020<0.0020<0.0020BED1

11/10/2020<0.0020<0.0020<0.0020BED1

9/9/2020<0.0020<0.0020<0.0020PT

9/9/2020

0.058

0.00290.0026BED1

6/23/2020<0.0020<0.0020<0.0020BED1

2/7/2020<0.0020<0.0020<0.0020BED1

10/30/2019<0.0020<0.0020<0.0020PT

8/27/2019

0.078

0.00930.0050BED1

8/27/2019<0.0020<0.0020<0.0020

BED1-DUP

5/15/2019<0.0020<0.0020<0.0020BED1

5/15/2019<0.0020<0.0020<0.0020BED1

3/22/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/10/2018<0.0020<0.0020<0.0020BED1

8/28/2018<0.0020<0.0020<0.0020PT

8/28/2018

0.059

0.00260.0027BED1

5/31/2018<0.0020<0.0020<0.0020

11/7/2017

0.043<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.041

0.026

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 02/09/2018.

Location: 225
BED1

5/17/2024<0.0020<0.0020<0.0020BED1

2/2/2024<0.0020<0.0020<0.0020BED1

10/12/2023<0.0020<0.0020<0.0020PT

8/7/2023

0.052

0.00490.0030BED1

8/7/2023<0.0020<0.0020<0.0020BED1

5/15/2023<0.0020<0.0020<0.0020BED1

2/22/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 02/22/2023 - 5yr.
BED1

10/6/2022<0.0020<0.0020<0.0020PT

7/14/2022

0.035

0.0032<0.0020BED1

7/14/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 261 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/13/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

1/25/2022<0.0020<0.0020<0.0020BED1

10/29/2021<0.0020<0.0020<0.0020BED1

8/18/2021<0.0020<0.0020<0.0020PT

8/18/2021

0.037

0.0051<0.0020BED1

6/1/2021<0.0020<0.0020<0.0020

BED1-DUP

6/1/2021<0.0020<0.0020<0.0020BED1

2/9/2021<0.0020<0.0020<0.0020BED1

11/3/2020<0.0020<0.0020<0.0020PT

8/26/2020

0.042

0.0034<0.0020BED1

8/26/2020<0.0020<0.0020<0.0020BED1

6/17/2020<0.0020<0.0020<0.0020BED1

2/11/2020<0.0020<0.0020<0.0020BED1

11/1/2019<0.0020<0.0020<0.0020PT

8/28/2019

0.034

0.0037<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 262 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/28/2019<0.0020<0.0020<0.0020

BED1

3/20/2019<0.0020<0.0020<0.0020BED1

12/6/2018<0.0020<0.0020<0.0020PT

9/10/2018

0.036

0.0030<0.0020BED1

9/10/2018<0.0020<0.0020<0.0020BED1

4/13/2018<0.0020<0.0020<0.0020

11/7/2017

0.028

0.0036<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0027

0.027

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/26/2018.

Location: 226
BED1

5/7/2024<0.0020<0.0020<0.0020

BED1

2/19/2024<0.0020<0.0020<0.0020BED1

11/13/2023<0.0020<0.0020<0.0020PT

7/17/2023

0.046

0.00520.0027BED1

7/17/2023<0.0020<0.0020<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020

Carbon Changeout 04/19/2023 - 5yr.
BED1

3/13/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 263 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

12/15/2022<0.0020<0.0020<0.0020BED1

12/15/2022<0.0020<0.0020<0.0020PT

9/21/2022

0.050

0.00550.0026

BED1-DUP

9/21/2022<0.0020<0.0020<0.0020BED1

9/21/2022<0.0020<0.0020<0.0020BED1

6/9/2022<0.0020<0.0020<0.0020BED1

2/24/2022<0.0020<0.0020<0.0020

BED1-DUP

11/23/2021<0.0020<0.0020<0.0020

BED1

11/23/2021<0.0020<0.0020<0.0020PT

9/23/2021

0.042

0.00480.0023

BED1

9/23/2021<0.0020<0.0020<0.0020

BED1

6/21/2021<0.0020<0.0020<0.0020

BED1-DUP

6/21/2021<0.0020<0.0020<0.0020BED1

3/8/2021<0.0020<0.0020<0.0020

BED1

11/19/2020<0.0020<0.0020<0.0020PT

9/14/2020

0.045

0.0057 J

0.0023NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

9/14/2020<0.0020<0.0020<0.0020BED1

9/14/2020<0.0020<0.0020<0.0020BED1

6/23/2020<0.0020<0.0020<0.0020BED1

2/27/2020<0.0020<0.0020<0.0020

BED1

11/25/2019<0.0020<0.0020<0.0020PT

9/3/2019

0.042

0.016

0.0024BED1

9/3/2019<0.0020<0.0020<0.0020BED1

6/4/2019<0.0020<0.0020<0.0020

BED1-DUP

6/4/2019<0.0020<0.0020<0.0020BED1

1/30/2019<0.0020<0.0020<0.0020BED1

10/30/2018<0.0020<0.0020<0.0020PT

7/17/2018

0.040

0.0055<0.0020BED1

7/17/2018<0.0020<0.0020<0.0020BED1

4/18/2018<0.0020<0.0020<0.0020

11/13/2017

0.037

0.0052<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0026

0.034

0.017

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/14/2018.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 227
BED1

4/23/2024<0.0020<0.0020<0.0020BED1

2/5/2024<0.0020<0.0020<0.0020BED1

11/6/2023<0.0020<0.0020<0.0020PT

8/24/2023

0.13

0.00220.0031BED1

8/24/2023<0.0020<0.0020<0.0020BED1

6/7/2023<0.0020<0.0020<0.0020BED1

3/14/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 03/14/2023 - 5yr.
BED1

10/10/2022<0.0020<0.0020<0.0020PT

7/26/2022

0.19<0.00200.0029BED1

7/26/2022<0.0020<0.0020<0.0020BED1

4/19/2022<0.0020<0.0020<0.0020BED1

1/27/2022<0.0020<0.0020<0.0020BED1

11/2/2021<0.0020<0.0020<0.0020BED1

8/23/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.18

0.00560.0046

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 266 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/16/2021<0.0020<0.0020<0.0020BED1

2/10/2021<0.0020<0.0020<0.0020BED1

10/27/2020<0.0020<0.0020<0.0020PT

8/25/2020

0.14<0.00200.0022

BED1

8/25/2020<0.0020<0.0020<0.0020BED1

6/17/2020<0.0020<0.0020<0.0020

BED1

1/20/2020<0.0020<0.0020<0.0020BED1

10/8/2019<0.0020<0.0020<0.0020PT

7/15/20190.18<0.0020<0.0020BED1

7/15/2019<0.0020<0.0020<0.0020BED1

4/10/2019<0.0020<0.0020<0.0020BED1

1/18/2019<0.0020<0.0020<0.0020BED1

10/26/2018<0.0020<0.0020<0.0020PT

7/12/2018

0.19<0.0020<0.0020BED1

7/12/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

4/16/2018<0.0020<0.0020<0.0020

11/13/2017

0.22<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020

0.11

0.066

<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/26/2018.

Location: 228
5/20/2024<0.0020<0.0020<0.0020

7/5/2022<0.0020<0.0020<0.0020

5/7/2021<0.0020<0.0020<0.0020

11/14/2017<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0038<0.0020<0.0020<0.020<0.020<0.0020<0.00200.00970.0034<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 229
11/14/2017

Location: 230
BED1

6/21/2024<0.0020<0.0020<0.0020BED1

3/14/2024<0.0020<0.0020<0.0020

BED1

11/16/2023<0.0020<0.0020<0.0020PT

8/23/2023

0.029<0.00200.0031BED1

8/23/2023<0.0020<0.0020<0.0020BED1

5/17/2023<0.0020<0.0020<0.0020

Carbon Changeout 05/17/2023 - 5yr.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/9/2023<0.0020<0.0020<0.0020

BED1

11/22/2022<0.0020<0.0020<0.0020PT

9/14/2022

0.029

0.00230.0033

BED1

9/14/2022<0.0020<0.0020<0.0020BED1

5/18/2022<0.0020<0.0020<0.0020BED1

3/22/2022<0.0020<0.0020<0.0020BED1

12/7/2021<0.0020<0.0020<0.0020PT

8/25/2021

0.021<0.00200.0030BED1

8/25/2021<0.0020<0.0020<0.0020BED1

6/14/2021<0.0020<0.0020<0.0020BED1

3/11/2021<0.0020<0.0020<0.0020BED1

12/3/2020<0.0020<0.0020<0.0020BED1

9/8/2020<0.0020<0.0020<0.0020PT

9/8/2020

0.020<0.00200.0027BED1

6/22/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

3/12/2020<0.0020<0.0020<0.0020

BED1

11/27/2019<0.0020<0.0020<0.0020PT

7/30/2019

0.053

0.00360.0057BED1

7/30/2019<0.0020<0.0020<0.0020BED1

4/22/2019<0.0020<0.0020<0.0020BED1

2/5/2019<0.0020<0.0020<0.0020BED1

11/1/2018<0.0020<0.0020<0.0020PT

7/11/2018

0.027

0.00210.0027BED1

7/11/2018<0.0020<0.0020<0.0020BED1

4/19/2018<0.0020<0.0020<0.0020

11/14/2017

0.071 J

0.0063 J

0.01 J<0.020<0.020<0.00200.00220.24 J

0.047 J

<0.0020<0.0020<0.0020<0.0020<0.00200.0031 J

0.0056 J<0.020<0.020<0.00200.00210.19 J

0.033 J

<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 02/06/2018.
11/14/2017

0.052 J

Before treatment sample. GAC installed 02/06/2018.

Location: 231
BED1

5/15/2024<0.0020<0.0020<0.0020

BED1

2/21/2024<0.0020<0.0020<0.0020BED1

11/2/2023<0.0020<0.0020<0.0020

Carbon Changeout 11/02/2023 - 5yr.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/28/2023

0.099

0.00290.0074

BED1-DUP

9/28/2023<0.0020<0.0020<0.0020BED1

9/28/2023<0.0020<0.0020<0.0020

BED1-DUP

6/12/2023<0.0020<0.0020<0.0020BED1

6/12/2023<0.0020<0.0020<0.0020BED1

3/6/2023<0.0020<0.0020<0.0020BED1

12/5/2022<0.0020<0.0020<0.0020PT

8/22/2022

0.071

0.00370.0064BED1

8/22/2022<0.0020<0.0020<0.0020BED1

5/2/2022<0.0020<0.0020<0.0020BED1

3/23/2022<0.0020<0.0020<0.0020BED1

12/7/2021<0.0020<0.0020<0.0020BED1

9/27/2021<0.0020<0.0020<0.0020

BED1-DUP

9/27/2021<0.0020<0.0020<0.0020PT

9/27/2021

0.13

0.00490.010

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/29/2021<0.0020<0.0020<0.0020BED1

3/11/2021<0.0020<0.0020<0.0020

BED1

11/24/2020<0.0020<0.0020<0.0020PT

9/23/2020

0.16

0.00430.0065

BED1

9/23/2020<0.0020<0.0020<0.0020BED1

6/25/2020<0.0020<0.0020<0.0020BED1

12/5/2019<0.0020<0.0020<0.0020BED1

9/26/2019<0.0020<0.0020<0.0020PT

9/26/2019

0.097

0.00260.0063

BED1

6/25/2019<0.0020<0.0020<0.0020BED1

1/17/2019<0.0020<0.0020<0.0020PT

1/17/2019

0.089

0.00370.0062

BED1

10/29/2018<0.0020<0.0020<0.0020

11/14/2017

0.08

0.00250.0057<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.00240.0023

0.072

0.047

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/11/2018.

Location: 232
BED2

5/4/2021

0.0022

Carbon Changeout 06/10/2021 - results driven. PWS connection 06/25/2021. GAC removed 06/25/2021. Well decommissioned 08/12/2021.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

5/4/2021

0.0087<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 06/10/2021 - results driven. PWS connection 06/25/2021. GAC removed 06/25/2021. Well decommissioned 08/12/2021.
BED2

2/9/2021<0.0020<0.0020<0.0020BED1

2/9/2021

0.0048<0.0020<0.0020BED1

11/3/2020

0.0051<0.0020<0.0020BED1

9/2/2020

0.0038<0.0020<0.0020PT

9/2/2020

0.10

0.0021

0.012

BED1

6/22/2020

0.0085<0.0020<0.0020BED1

3/16/2020

0.0051<0.0020<0.0020

BED1

11/25/2019<0.0020<0.0020<0.0020BED1

8/29/2019<0.0020<0.0020<0.0020PT

8/29/2019

0.13

0.0023

0.016

BED1

5/1/2019<0.0020<0.0020<0.0020

BED1

2/21/2019<0.0020<0.0020<0.0020BED1

10/30/2018<0.0020<0.0020<0.0020PT

7/24/2018

0.15

0.00250.010<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/24/2018<0.0020<0.0020<0.0020BED1

5/3/2018<0.0020<0.0020<0.0020

11/20/2017

0.063

0.00240.0047

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.044

0.03

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 02/23/2018.

Location: 233
BED1

5/9/2024<0.0020<0.0020<0.0020BED1

2/12/2024<0.0020<0.0020<0.0020BED1

11/14/2023<0.0020<0.0020<0.0020BED1

8/31/2023<0.0020<0.0020<0.0020PT

8/31/2023

0.064

0.00780.0068BED1

5/4/2023<0.0020<0.0020<0.0020

Carbon Changeout 05/04/2023 - 5yr.
BED2

1/18/2023<0.0020<0.0020<0.0020BED1

1/18/2023

0.021<0.0020<0.0020

BED2

10/19/2022<0.0020<0.0020<0.0020

BED1

10/19/2022

0.0098<0.0020<0.0020PT

8/18/2022

0.075

0.00910.0088BED2

8/18/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/18/2022

0.015<0.0020<0.0020

BED2

4/20/2022<0.0020<0.0020<0.0020

BED1

4/20/2022

0.0084<0.0020<0.0020

BED2

1/31/2022<0.0020<0.0020<0.0020BED1

1/31/2022

0.011<0.0020<0.0020BED2

11/2/2021<0.0020<0.0020<0.0020BED1

11/2/2021

0.0075<0.0020<0.0020BED1

8/16/2021

0.0039<0.0020<0.0020BED2

8/16/2021<0.0020<0.0020<0.0020PT

8/16/2021

0.059

0.00910.0070BED2

5/17/2021<0.0020<0.0020<0.0020BED1

5/17/2021

0.0046<0.0020<0.0020

BED2

2/24/2021<0.0020<0.0020<0.0020BED1

2/24/2021

0.0040<0.0020<0.0020BED1

10/6/2020

0.0027<0.0020<0.0020PT

7/28/2020

0.069

0.012

0.0087

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/28/2020<0.0020<0.0020<0.0020BED1

6/3/2020<0.0020<0.0020<0.0020

BED1-DUP

1/23/2020<0.0020<0.0020<0.0020

BED1

1/23/2020<0.0020<0.0020<0.0020BED1

10/8/2019<0.0020<0.0020<0.0020PT

7/10/2019

0.072

0.00690.0056BED1

7/10/2019<0.0020<0.0020<0.0020BED1

4/3/2019<0.0020<0.0020<0.0020BED1

1/14/2019<0.0020<0.0020<0.0020BED1

11/13/2018<0.0020<0.0020<0.0020PT

9/10/2018

0.067

0.00570.0050BED19/10/2018<0.0020<0.0020<0.0020BED1

4/23/2018<0.0020<0.0020<0.0020

11/21/2017

0.069

0.00730.0054<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0026

0.054

0.035

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/27/2018.

Location: 234
5/23/2022<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
-DUP

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

5/23/2022<0.0020<0.0020

4/26/2021<0.0020 UJ <0.0020 UJ <0.0020 UJ

8/20/2019<0.0020<0.0020<0.0020<0.020<0.02011/27/2017<0.0020<0.0020<0.0020<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Location: 235
BED1

6/14/2024<0.0020<0.0020<0.0020BED1

3/8/2024<0.0020<0.0020<0.0020BED1

12/4/2023<0.0020<0.0020<0.0020PT

9/14/2023

0.044

0.00210.010

BED1-DUP

9/14/2023<0.0020<0.0020<0.0020BED1

9/14/2023<0.0020<0.0020<0.0020BED1

6/13/2023<0.0020<0.0020<0.0020

Carbon Changeout 06/13/2023 - 5yr.
BED1

2/9/2023<0.0020<0.0020<0.0020BED1

10/17/2022<0.0020<0.0020<0.0020PT

8/4/2022

0.063<0.0020

0.013

BED1

8/4/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/25/2022<0.0020<0.0020<0.0020BED1

1/26/2022<0.0020<0.0020<0.0020BED1

11/1/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.080

0.0025

0.017

BED1

8/23/2021<0.0020<0.0020<0.0020BED1

6/1/2021<0.0020<0.0020<0.0020BED1

3/10/2021<0.0020<0.0020<0.0020

BED1-DUP

3/10/2021<0.0020<0.0020<0.0020

BED1

10/19/2020<0.0020<0.0020<0.0020

BED1-DUP

10/19/2020<0.0020<0.0020<0.0020BED1

8/11/2020<0.0020<0.0020<0.0020PT

8/11/2020

0.020

0.00230.0073BED1

6/8/2020<0.0020<0.0020<0.0020BED1

1/16/2020<0.0020<0.0020<0.0020BED1

10/2/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/9/2019

0.11<0.0020

0.010

BED1

7/9/2019<0.0020<0.0020<0.0020

BED1-DUP

4/8/2019<0.0020<0.0020<0.0020BED1

4/8/2019<0.0020<0.0020<0.0020BED1

1/14/2019<0.0020<0.0020<0.0020BED1

10/26/2018<0.0020<0.0020<0.0020PT

7/16/2018

0.13<0.0020

0.011

BED1

7/16/2018<0.0020<0.0020<0.0020BED1

4/18/2018<0.0020<0.0020<0.0020

11/27/2017

0.089<0.0020

0.011

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0057<0.0020

0.061

0.028

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/09/2018.

Location: 236
BED1-DUP

5/29/2024<0.0020<0.0020<0.0020BED1

5/29/2024<0.0020<0.0020<0.0020BED1

3/11/2024<0.0020<0.0020<0.0020

BED1-DUP

11/7/2023<0.0020<0.0020<0.0020

Carbon Changeout 11/07/2023 - 5yr.
BED1

11/7/2023<0.0020<0.0020<0.0020

Carbon Changeout 11/07/2023 - 5yr.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/21/2023

0.070

0.011

0.0081BED1

8/21/2023<0.0020<0.0020<0.0020

BED1-DUP

8/21/2023<0.0020<0.0020<0.0020BED1

5/25/2023<0.0020<0.0020<0.0020BED1

2/6/2023<0.0020<0.0020<0.0020BED1

11/30/2022<0.0020<0.0020<0.0020BED1

9/19/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

PT

9/19/2022

0.062

0.00930.0058

BED1-DUP

6/1/2022<0.0020<0.0020<0.0020BED1

6/1/2022<0.0020<0.0020<0.0020BED1

2/16/2022<0.0020<0.0020<0.0020

BED1

11/29/2021<0.0020<0.0020<0.0020BED1

8/27/2021<0.0020<0.0020<0.0020PT

8/27/2021

0.063

0.012

0.0066BED1

6/11/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/5/2021<0.0020<0.0020<0.0020

BED1

11/24/2020<0.0020<0.0020<0.0020BED1

9/21/2020<0.0020<0.0020<0.0020PT

9/21/2020

0.054

0.011

0.0051BED1

6/26/2020<0.0020<0.0020<0.0020BED1

3/6/2020<0.0020<0.0020<0.0020

BED1-DUP

11/7/2019<0.0020<0.0020<0.0020BED1

11/7/2019<0.0020<0.0020<0.0020BED1

8/28/2019<0.0020<0.0020<0.0020PT

8/28/2019

0.058

0.011

0.005

BED1

5/16/2019<0.0020<0.0020<0.0020BED1

2/13/2019<0.0020<0.0020<0.0020

BED1-DUP

2/13/2019<0.0020<0.0020<0.0020BED1

11/9/2018<0.0020<0.0020<0.0020

BED1-DUP

11/9/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/9/2018

0.060

0.012

0.0055

BED1-DUP

8/9/2018<0.0020<0.0020<0.0020BED1

8/9/2018<0.0020<0.0020<0.0020

11/27/2017

0.051

0.00990.0039NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0035

0.042

0.022

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 05/04/2018.

Location: 237
BED1

5/30/2024<0.0020<0.0020<0.0020BED1

3/1/2024<0.0020<0.0020<0.0020

BED1

12/21/2023<0.0020<0.0020<0.0020PT

9/19/2023

0.056

0.00470.0032

BED1

9/19/2023<0.0020<0.0020<0.0020BED1

6/15/2023<0.0020<0.0020<0.0020

Carbon Changeout 06/15/2023 - 5yr.
BED1

9/20/2022<0.0020<0.0020<0.0020PT

9/20/2022

0.052

0.00470.0029

BED1-DUP

9/20/2022<0.0020<0.0020<0.0020

BED1

6/20/2022<0.0020<0.0020<0.0020BED1

3/16/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

12/15/2021<0.0020<0.0020<0.0020BED1

12/15/2021<0.0020<0.0020<0.0020BED1

9/7/2021<0.0020<0.0020<0.0020PT

9/7/2021

0.056

0.00480.0031BED1

6/10/2021<0.0020<0.0020<0.0020BED1

3/15/2021<0.0020<0.0020<0.0020BED1

10/27/2020<0.0020<0.0020<0.0020BED1

7/28/2020<0.0020<0.0020<0.0020PT

7/28/2020

0.046

0.00490.0024BED1

3/6/2020<0.0020<0.0020<0.0020

BED1

11/22/2019<0.0020<0.0020<0.0020PT

9/25/2019

0.037

0.0039<0.0020BED1

9/25/2019<0.0020<0.0020<0.0020BED1

6/28/2019<0.0020<0.0020<0.0020BED1

3/28/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/27/2018<0.0020<0.0020<0.0020BED1

7/18/2018<0.0020<0.0020<0.0020PT

7/18/2018

0.044

0.0047<0.0020BED1

4/19/2018

0.0022 B<0.0020<0.0020

11/27/2017

0.039

0.0046<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0028

0.035

0.019

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/20/2018.

Location: 238
BED1

3/6/2024<0.0020<0.0020<0.0020BED1

12/6/2023<0.0020<0.0020<0.0020

BED1-DUP

12/6/2023<0.0020<0.0020<0.0020PT

8/15/2023

0.042

0.00710.0028Carbon Changeout 08/15/2023 - 5yr.
BED1

8/15/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/15/2023 - 5yr.
BED1-DUP

4/24/2023<0.0020<0.0020<0.0020BED1

4/24/2023<0.0020<0.0020<0.0020BED1

2/6/2023<0.0020<0.0020<0.0020BED1

11/7/2022<0.0020<0.0020<0.0020

BED1-DUP

11/7/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/18/2022<0.0020<0.0020<0.0020PT

7/18/2022

0.041

0.00570.0025

BED1-DUP

7/18/2022<0.0020<0.0020<0.0020BED1

4/18/2022<0.0020<0.0020<0.0020BED1

1/24/2022<0.0020<0.0020<0.0020BED1

10/28/2021<0.0020<0.0020<0.0020

BED1-DUP

10/28/2021<0.0020<0.0020<0.0020BED1

8/18/2021<0.0020<0.0020<0.0020PT

8/18/2021

0.046

0.00810.0027BED1

6/9/2021<0.0020<0.0020<0.0020BED1

3/17/2021<0.0020<0.0020<0.0020

BED1

10/19/2020<0.0020<0.0020<0.0020PT

8/10/2020

0.036

0.0068<0.0020BED1

8/10/2020<0.0020<0.0020<0.0020BED1

6/8/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/20/2020<0.0020<0.0020<0.0020BED1

11/13/2019<0.0020<0.0020<0.0020PT

8/29/2019

0.033

0.0079<0.0020BED1

8/29/2019<0.0020<0.0020<0.0020BED1

5/16/2019<0.0020<0.0020<0.0020BED1

2/22/2019<0.0020<0.0020<0.0020

BED1

11/27/2018<0.0020<0.0020<0.0020BED1

9/19/2018<0.0020<0.0020<0.0020PT

9/19/2018

0.032

0.00520.0021

11/28/2017

0.029

0.0051<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0029

0.03

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/24/2018.

Location: 239
BED1-DUP

6/18/2024<0.0020<0.0020<0.0020BED1

6/18/2024<0.0020<0.0020<0.0020BED1

3/12/2024<0.0020<0.0020<0.0020BED1

12/11/2023<0.0020<0.0020<0.0020

BED1-DUP

12/11/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
PT

Date

PFOA

PFOS

9/25/2023

0.055

0.0035PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.015

Carbon Changeout 09/25/2023 - 5yr.
BED1

9/25/2023<0.0020<0.0020<0.0020

Carbon Changeout 09/25/2023 - 5yr.
BED1

5/8/2023<0.0020<0.0020<0.0020

BED1-DUP

5/8/2023<0.0020<0.0020<0.0020BED1

1/18/2023<0.0020<0.0020<0.0020

BED1-DUP

1/18/2023<0.0020<0.0020<0.0020

BED1-DUP

10/17/2022<0.0020<0.0020<0.0020BED1

10/17/2022<0.0020<0.0020<0.0020PT

8/4/2022

0.059

0.00360.014

BED1-DUP

8/4/2022<0.0020<0.0020<0.0020BED1

8/4/2022<0.0020<0.0020<0.0020BED1

4/28/2022<0.0020<0.0020<0.0020BED1

3/17/2022<0.0020<0.0020<0.0020

BED1-DUP

12/9/2021<0.0020<0.0020<0.0020BED1

12/9/2021<0.0020<0.0020<0.0020BED1

9/8/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

9/8/2021<0.0020<0.0020<0.0020PT

9/8/2021

0.061

0.0036

0.019

BED1

5/13/2021<0.0020<0.0020<0.0020

BED1-DUP

2/12/2021<0.0020<0.0020<0.0020BED1

2/12/2021<0.0020<0.0020<0.0020

BED1

11/17/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.067

0.0033

0.015

BED1

9/16/2020<0.0020<0.0020<0.0020BED1

6/23/2020<0.0020<0.0020<0.0020BED1

2/28/2020<0.0020<0.0020<0.0020

BED1

11/21/2019<0.0020<0.0020<0.0020BED1

9/6/2019<0.0020<0.0020<0.0020PT

9/6/2019

0.066

0.0027

0.014

BED1

4/5/2019<0.0020<0.0020<0.0020BED1

1/15/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/26/2018<0.0020<0.0020<0.0020PT

7/13/2018

0.076

0.0030

0.013

BED1

7/13/2018<0.0020<0.0020<0.0020

11/28/2017

0.078

0.00330.013

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0023<0.0020

0.053

0.024

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/12/2018.

Location: 240-DUP

7/5/2022<0.0020<0.0020<0.0020

7/5/2022<0.0020<0.0020<0.0020

4/19/2021<0.0020<0.0020<0.0020

11/30/2017<0.0020<0.0020<0.0020

3/13/2023<0.0020<0.0020<0.0020

3/14/2022<0.0020<0.0020<0.0020

3/14/2022<0.0020<0.0020<0.0020

10/4/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

11/30/2017<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 241-DUP<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 242
BED1-DUP

6/7/2024<0.0020<0.0020<0.0020BED1

6/7/2024<0.0020<0.0020<0.0020

BED1-DUP

2/16/2024<0.0020<0.0020<0.0020BED1

2/16/2024<0.0020<0.0020<0.0020BED1

10/9/2023<0.0020<0.0020<0.0020PT

7/24/2023

0.019<0.0020<0.0020BED1

7/24/2023<0.0020<0.0020<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020

BED1-DUP

1/30/2023<0.0020<0.0020<0.0020BED1

1/30/2023<0.0020<0.0020<0.0020BED1

10/28/2022<0.0020<0.0020<0.0020

BED1-DUP

10/28/2022<0.0020<0.0020<0.0020BED1

8/22/2022<0.0020<0.0020<0.0020PT

8/22/2022

0.026<0.0020<0.0020BED1

4/18/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

4/18/2022<0.0020<0.0020<0.0020BED1

1/25/2022<0.0020<0.0020<0.0020

BED1-DUP

11/1/2021<0.0020<0.0020<0.0020BED1

11/1/2021<0.0020<0.0020<0.0020BED1

4/9/2021<0.0020<0.0020<0.0020

BED1-DUP

1/14/2021<0.0020<0.0020<0.0020BED1

1/14/2021<0.0020<0.0020<0.0020PT

9/16/2020

0.074<0.00200.0029BED1

9/16/2020<0.0020<0.0020<0.0020BED1

6/10/2020<0.0020<0.0020<0.0020BED1

1/17/2020<0.0020<0.0020<0.0020

8/26/2019

0.062<0.00200.0021<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.059

0.029

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 11/15/2019.
4/23/2018

0.0098<0.0020<0.0020<0.020<0.020<0.0020<0.00200.013

0.0058<0.0020<0.0020<0.0020<0.0020<0.0020

11/30/2017

0.011<0.0020<0.0020<0.020<0.020<0.0020<0.00200.016

0.0073<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 243
BED1

5/16/2023

Carbon Changeout 05/16/2023 - 5yr. Replacement well installed (Regulatory Location ID #705). Qualified for treatment so GAC System transferred to replacement well. Well decommissioned according to NJ
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/11/2023<0.0020<0.0020<0.0020BED1

10/10/2022<0.0020<0.0020<0.0020PT

7/26/2022

0.056

0.010

0.013

BED1

7/26/2022<0.0020<0.0020<0.0020

BED1-DUP

4/20/2022<0.0020<0.0020<0.0020

BED1

4/20/2022<0.0020<0.0020<0.0020BED1

1/24/2022<0.0020<0.0020<0.0020BED1

10/22/2021<0.0020<0.0020<0.0020

BED1-DUP

8/16/2021<0.0020<0.0020<0.0020PT

8/16/2021

0.065

0.018

0.016

BED1

8/16/2021<0.0020<0.0020<0.0020BED1

5/5/2021<0.0020<0.0020<0.0020BED1

2/10/2021<0.0020<0.0020<0.0020BED1

11/3/2020<0.0020<0.0020<0.0020BED1

9/2/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/2/2020

0.058

0.0096

0.010

BED1

6/19/2020<0.0020<0.0020<0.0020BED1

2/7/2020<0.0020<0.0020<0.0020BED1

10/31/2019<0.0020<0.0020<0.0020BED1

8/29/2019<0.0020<0.0020<0.0020

BED1-DUP

8/29/2019<0.0020<0.0020<0.0020PT

8/29/2019

0.057

0.011

0.011

BED1-DUP

5/23/2019<0.0020<0.0020<0.0020BED1

5/23/2019<0.0020<0.0020<0.0020

BED1

2/21/2019<0.0020<0.0020<0.0020BED1

11/5/2018<0.0020<0.0020<0.0020PT

7/26/2018

0.065

0.014

0.012

BED1

7/26/2018<0.0020<0.0020<0.0020BED1

4/25/2018<0.0020<0.0020<0.0020

11/30/2017

0.061

0.011

0.011

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0028

0.043

0.028

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/27/2018.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 244
BED1

5/29/2024<0.0020<0.0020<0.0020BED1

3/5/2024<0.0020<0.0020<0.0020

Carbon Changeout 03/05/2024 - 5yr.
BED1-DUP

3/5/2024<0.0020<0.0020<0.0020

Carbon Changeout 03/05/2024 - 5yr.
BED1

5/30/2023<0.0020<0.0020<0.0020BED1

3/7/2023<0.0020<0.0020<0.0020

BED1-DUP

12/28/2022<0.0020<0.0020<0.0020BED1

12/28/2022<0.0020<0.0020<0.0020

BED1-DUP

6/14/2022<0.0020<0.0020<0.0020BED1

6/14/2022<0.0020<0.0020<0.0020BED1

3/8/2022<0.0020<0.0020<0.0020BED1

11/30/2021<0.0020<0.0020<0.0020

BED1-DUP

11/30/2021<0.0020<0.0020<0.0020BED1

6/9/2021<0.0020<0.0020<0.0020BED1

3/23/2021<0.0020<0.0020<0.0020BED1

3/17/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/3/2019

0.064

0.009

0.0065BED1

9/3/2019<0.0020<0.0020<0.0020BED1

6/4/2019<0.0020<0.0020<0.0020BED1

1/30/2019<0.0020<0.0020<0.0020BED1

11/7/2018<0.0020<0.0020<0.0020BED1

8/7/2018<0.0020<0.0020<0.0020PT

8/7/2018

0.063

0.00700.0066

11/30/2017

0.033<0.00200.0026

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.002

0.0021

0.056

0.02

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 05/02/2018.

Location: 245-DUP

7/28/2022

0.0082<0.0020<0.0020

7/28/2022

0.0080<0.0020<0.0020

8/2/2021

0.0042<0.0020<0.0020

Well resampled and not qualified. Well included in QREP.
4/14/2021<0.0020 UJ <0.0020<0.0020 UJ

Well resampled and not qualified. Permanent bottled water stopped.
-DUP

4/14/2021<0.0020<0.0020<0.0020

Well resampled and not qualified. Permanent bottled water stopped.
BED1

9/3/2019<0.0020<0.0020<0.0020

GAC removed 11/19/2019 at owner's request. Permanent bottled water.
PT

9/3/2019

0.034<0.00200.0049GAC removed 11/19/2019 at owner's request. Permanent bottled water.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/7/2019<0.0020<0.0020<0.0020BED1

2/26/2019<0.0020<0.0020<0.0020BED1

11/9/2018<0.0020<0.0020<0.0020BED1

8/10/2018<0.0020<0.0020<0.0020PT

8/10/2018

0.027<0.00200.0026BED1

5/4/2018<0.0020<0.0020<0.0020

11/30/2017

0.032<0.00200.0036

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.0020

0.039

0.016

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/30/2018.

Location: 246
BED1-DUP

6/12/2024<0.0020<0.0020<0.0020BED1

6/12/2024<0.0020<0.0020<0.0020

BED1-DUP

1/17/2024<0.0020<0.0020<0.0020BED1

1/17/2024<0.0020<0.0020<0.0020BED1

10/25/2023<0.0020<0.0020<0.0020

Carbon Changeout 10/25/2023 - 5yr.
BED1-DUP

8/3/2023<0.0020<0.0020<0.0020BED1

8/3/2023<0.0020<0.0020<0.0020PT

8/3/2023

0.054

0.00290.013

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/8/2023<0.0020<0.0020<0.0020BED1

2/14/2023<0.0020<0.0020<0.0020

BED1-DUP

11/17/2022<0.0020<0.0020<0.0020

BED1

11/17/2022<0.0020<0.0020<0.0020PT

9/8/2022

0.066

0.00370.015

BED1-DUP

9/8/2022<0.0020<0.0020<0.0020BED1

9/8/2022<0.0020<0.0020<0.0020BED1

5/25/2022<0.0020<0.0020<0.0020

BED1-DUP

5/25/2022<0.0020<0.0020<0.0020BED1

2/24/2022<0.0020<0.0020<0.0020

BED1

11/15/2021<0.0020<0.0020<0.0020

BED1-DUP

11/15/2021<0.0020<0.0020<0.0020BED1

8/27/2021<0.0020<0.0020<0.0020

BED1-DUP

8/27/2021<0.0020<0.0020<0.0020PT

8/27/2021

0.067

0.00370.015

BED1-DUP

6/16/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/16/2021<0.0020<0.0020<0.0020BED1

2/16/2021<0.0020<0.0020<0.0020

BED1-DUP

12/2/2020<0.0020<0.0020<0.0020BED1

12/2/2020<0.0020<0.0020<0.0020PT

8/26/2020

0.065

0.00340.015

BED1-DUP

8/26/2020<0.0020<0.0020<0.0020BED1

8/26/2020<0.0020<0.0020<0.0020BED1

6/9/2020<0.0020<0.0020<0.0020

BED1-DUP

1/30/2020<0.0020<0.0020<0.0020BED1

1/30/2020<0.0020<0.0020<0.0020BED1

10/22/2019<0.0020<0.0020<0.0020PT

8/2/2019

0.079

0.0035

0.015

BED1

8/2/2019<0.0020<0.0020<0.0020BED1

4/25/2019<0.00200.0022<0.0020BED1

2/18/2019<0.00200.0034<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

11/27/2018<0.0020<0.0020<0.0020BED1

8/1/2018<0.0020<0.0020<0.0020<0.0040PT

8/1/2018

0.076

0.00270.013<0.0040

11/30/2017

0.077

0.0031

0.012<0.020<0.020PFBS

0.0031

PFHxS<0.0020

PFHxA

0.055

PFHpA

0.027

PFDA

<0.0020

PFUnA<0.0020

PFDoA<0.0020

PFTriA<0.0020

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

GAC installed 05/24/2018.

Location: 247
BED1

5/24/2024<0.0020<0.0020<0.0020BED1

3/1/2024<0.0020<0.0020<0.0020

BED1-DUP

3/1/2024<0.0020<0.0020<0.0020BED1

11/2/2023<0.0020<0.0020<0.0020PT

7/14/2023

0.044

0.00350.0026BED1

7/14/2023<0.0020<0.0020<0.0020BED1

4/18/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 04/18/2023 - 5yr.
BED1

2/9/2023<0.0020<0.0020<0.0020BED1

10/26/2022<0.0020<0.0020<0.0020

BED1-DUP

10/26/2022<0.0020<0.0020<0.0020BED1

8/23/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/23/2022

0.048

0.00370.0028

BED1-DUP

8/23/2022<0.0020<0.0020<0.0020

BED1-DUP

5/23/2022<0.0020<0.0020<0.0020BED1

5/23/2022<0.0020<0.0020<0.0020BED1

2/10/2022<0.0020<0.0020<0.0020

BED1-DUP

10/25/2021<0.0020<0.0020<0.0020BED1

10/25/2021<0.0020<0.0020<0.0020BED1

8/17/2021<0.0020<0.0020<0.0020

BED1-DUP

8/17/2021<0.0020<0.0020<0.0020PT

8/17/2021

0.054

0.00470.0030BED1

5/25/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020BED1

12/1/2020<0.0020<0.0020<0.0020PT

8/25/2020

0.037

0.0036<0.0020BED1

8/25/2020<0.0020<0.0020<0.0020BED1

6/16/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/20/2020<0.0020<0.0020<0.0020BED1

11/13/2019<0.0020<0.0020<0.0020BED1

9/12/2019<0.0020<0.0020<0.0020PT

9/12/2019

0.059

0.011

0.0062

BED1

4/12/2019<0.0020<0.0020<0.0020

BED1

1/23/2019<0.0020<0.0020<0.0020BED1

11/2/2018<0.0020<0.0020<0.0020PT

7/19/2018

0.036

0.0036<0.0020BED1

7/19/2018<0.0020<0.0020<0.0020BED1

4/16/2018<0.0020<0.0020<0.0020

11/30/2017

0.034

0.0034<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.0020

0.033

0.017

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/20/2018.

Location: 248
BED1

5/23/2024<0.0020<0.0020<0.0020BED1

3/8/2024<0.0020<0.0020<0.0020BED1

11/2/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/9/2023

0.054

0.0042

0.018

BED1-DUP

8/9/2023<0.0020<0.0020<0.0020BED1

8/9/2023<0.0020<0.0020<0.0020BED1

6/27/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 06/27/2023 - 5yr.
BED1-DUP

3/9/2023<0.0020<0.0020<0.0020BED1

3/9/2023<0.0020<0.0020<0.0020

BED1-DUP

12/7/2022<0.0020<0.0020<0.0020BED1

12/7/2022<0.0020<0.0020<0.0020PT

9/19/2022

0.057

0.0037

0.015

BED1

9/19/2022<0.0020<0.0020<0.0020BED1

5/25/2022<0.0020<0.0020<0.0020BED1

3/1/2022<0.0020<0.0020<0.0020

BED1

11/18/2021<0.0020<0.0020<0.0020

BED1-DUP

8/19/2021<0.0020<0.0020<0.0020BED1

8/19/2021<0.0020<0.0020<0.0020PT

8/19/2021

0.060

0.00430.017

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/20/2021<0.0020<0.0020<0.0020

BED1

1/21/2021<0.0020<0.0020<0.0020PT

9/14/2020

0.044

0.0026 J

0.012

BED1

9/14/2020<0.0020<0.0020<0.0020BED1

6/24/2020<0.0020<0.0020<0.0020BED1

2/27/2020<0.0020<0.0020<0.0020

BED1

11/25/2019<0.0020<0.0020<0.0020BED1

9/25/2019<0.0020<0.0020<0.0020PT

9/25/2019

0.067

0.00350.016

BED1-DUP

9/25/2019<0.0020<0.0020<0.0020

BED1

5/20/2019<0.0020<0.0020<0.0020BED1

3/7/2019<0.0020<0.0020<0.0020BED1

11/28/2018<0.0020<0.0020<0.0020PT

8/7/2018

0.079

0.0039

0.016

BED1

8/7/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

5/3/2018<0.0020<0.0020<0.0020-DUP

11/30/2017

0.076

0.00460.017<0.020<0.0200.00430.017<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.0033<0.0020

0.05

0.025

<0.00200.0038<0.0020

0.052

0.024

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 02/16/2018.
11/30/2017

0.072

GAC installed 02/16/2018.

Location: 249
BED1

5/23/2024<0.0020<0.0020<0.0020BED1

2/8/2024

0.062

0.00970.0079Carbon Changeout 02/08/2024 - 5yr.
BED2

2/8/2024<0.0020<0.0020<0.0020

Carbon Changeout 02/08/2024 - 5yr.
BED1-DUP

2/8/2024

0.062

0.00980.0079Carbon Changeout 02/08/2024 - 5yr.
BED1-DUP

11/30/2023<0.0020<0.0020<0.0020BED1

11/30/2023<0.0020<0.0020<0.0020PT

9/6/2023

0.066

0.011

0.0081

BED1-DUP

9/6/2023<0.0020<0.0020<0.0020BED1

9/6/2023<0.0020<0.0020<0.0020

BED1-DUP

6/26/2023<0.0020<0.0020<0.0020BED1

6/26/2023<0.0020<0.0020<0.0020

BED1-DUP

3/6/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/6/2023<0.0020<0.0020<0.0020

BED1-DUP

11/30/2022<0.0020<0.0020<0.0020BED1

11/30/2022<0.0020<0.0020<0.0020BED1

9/6/2022<0.0020<0.0020<0.0020

BED1-DUP

9/6/2022<0.0020<0.0020<0.0020PT

9/6/2022

0.065

0.00990.0069BED1

6/6/2022<0.0020<0.0020<0.0020BED1

3/7/2022<0.0020<0.0020<0.0020

BED1-DUP

3/7/2022<0.0020<0.0020<0.0020BED1

12/29/2021<0.0020<0.0020<0.0020

BED1-DUP

12/29/2021<0.0020<0.0020<0.0020PT

9/17/2021

0.064

0.00980.0074

BED1

9/17/2021<0.0020<0.0020<0.0020BED1

6/17/2021<0.0020<0.0020<0.0020BED1

2/12/2021<0.0020<0.0020<0.0020

BED1

11/17/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/16/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.064

0.010

0.0061

BED1-DUP

6/24/2020<0.0020<0.0020<0.0020BED1

6/24/2020<0.0020<0.0020<0.0020

BED1

2/20/2020<0.0020<0.0020<0.0020

BED1

11/18/2019<0.0020<0.0020<0.0020PT

9/12/2019

0.058

0.010

0.0058BED1

9/12/2019<0.0020<0.0020<0.0020

BED1-DUP

5/30/2019<0.0020<0.0020<0.0020BED1

5/30/2019<0.0020<0.0020<0.0020PT

1/17/2019

0.068

0.013

0.0065

BED1

1/17/2019<0.0020<0.0020<0.0020BED1

10/22/2018<0.0020<0.0020<0.0020

11/30/2017

0.053

0.01

0.0048<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0038

0.048

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 09/28/2018.

Location: 250
BED1

5/29/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleBED1

Date
1/24/2024

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 01/24/2024 - 5yr.
BED1-DUP

11/8/2023

0.0027<0.0020<0.0020BED1

11/8/2023

0.0024<0.0020<0.0020BED2

11/8/2023<0.0020<0.0020<0.0020PT

8/16/2023

0.069

0.00980.0085BED2

8/16/2023<0.0020<0.0020<0.0020

BED1-DUP

8/16/2023

0.0029<0.0020<0.0020BED1

8/16/2023

0.0028<0.0020<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020BED1

2/6/2023<0.0020<0.0020<0.0020BED1

11/14/2022<0.0020<0.0020<0.0020BED1

9/12/2022<0.0020<0.0020<0.0020PT

9/12/2022

0.086

0.011

0.0095

BED1

6/21/2022<0.0020<0.0020<0.0020

BED1-DUP

6/21/2022<0.0020<0.0020<0.0020BED1

3/7/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/16/2021<0.0020<0.0020<0.0020

BED1-DUP

9/16/2021<0.0020<0.0020<0.0020PT

9/16/2021

0.070

0.011

0.0086

BED1-DUP

6/9/2021<0.0020<0.0020<0.0020BED1

6/9/2021<0.0020<0.0020<0.0020BED1

2/17/2021<0.0020<0.0020<0.0020

BED1-DUP

2/17/2021<0.0020<0.0020<0.0020BED1

9/16/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.075

0.00890.0076BED1

6/26/2020<0.0020<0.0020<0.0020

BED1

11/27/2019<0.0020<0.0020<0.0020PT

9/25/2019

0.077

0.00940.0083

BED1

9/25/2019<0.0020<0.0020<0.0020BED1

5/17/2019<0.0020<0.0020<0.0020BED1

3/18/2019<0.0020<0.0020<0.0020PT

12/21/2018

0.081

0.00860.0058NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

12/21/2018<0.0020<0.0020<0.0020

11/30/2017

0.069

0.00920.0062NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

0.0028

0.056

0.036

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 09/19/2018.

Location: 251
BED1

5/31/2024<0.0020<0.0020<0.0020

BED1-DUP

5/31/2024<0.0020<0.0020<0.0020BED1

2/8/2024<0.0020<0.0020<0.0020BED1

10/25/2023<0.0020<0.0020<0.0020PT

8/1/2023

0.053

0.00590.0062

BED1-DUP

8/1/2023<0.0020<0.0020<0.0020BED1

8/1/2023<0.0020<0.0020<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020BED1

2/9/2023<0.0020<0.0020<0.0020BED1

11/7/2022<0.0020<0.0020<0.0020BED1

9/15/2022<0.0020<0.0020<0.0020PT

9/15/2022

0.058

0.00570.0058BED1

5/26/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

2/21/2022<0.0020<0.0020<0.0020

BED1

2/21/2022<0.0020<0.0020<0.0020

BED1

11/17/2021<0.0020<0.0020<0.0020PT

9/10/2021

0.062

0.00650.0062

BED1-DUP

9/10/2021<0.0020<0.0020<0.0020BED1

9/10/2021<0.0020<0.0020<0.0020BED1

6/10/2021<0.0020<0.0020<0.0020BED1

3/8/2021<0.0020<0.0020<0.0020BED1

9/28/2020<0.0020<0.0020<0.0020PT

9/28/2020

0.067

0.017

0.0082

BED1-DUP

9/28/2020<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

6/18/2020<0.0020<0.0020<0.0020BED1

1/29/2020<0.0020<0.0020<0.0020

11/30/2017

0.062

0.00590.0043<0.020<0.020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.0024

0.049

0.031

<0.0020<0.0020<0.00200.0041<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 11/05/2019.

Location: 252
7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

5/23/2022<0.0020<0.0020<0.0020

4/21/2021<0.0020<0.0020<0.0020

12/7/2017<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 253
POST

3/12/2024<0.0020<0.0020<0.0020PRE

3/12/2024<0.0020<0.0020<0.0020POST

8/14/2023<0.0020<0.0020<0.0020PRE

8/14/2023<0.0020<0.0020<0.0020

12/7/2017<0.0020<0.0020<0.0020

6/13/2022<0.0020<0.0020<0.0020

6/13/2022<0.0020<0.0020<0.0020

4/27/2021<0.0020<0.0020<0.0020

12/7/2017<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 254-DUP

Location: 255
BED1

6/13/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/18/2024<0.0020<0.0020<0.0020BED1

10/31/2023<0.0020<0.0020<0.0020PT

7/13/2023

0.053

0.00810.0050BED1

7/13/2023<0.0020<0.0020<0.0020BED1

4/11/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 04/11/2023 - 5yr.
BED1

2/13/2023<0.0020<0.0020<0.0020

BED1-DUP

2/13/2023<0.0020<0.0020<0.0020BED1

11/8/2022<0.0020<0.0020<0.0020PT

9/6/2022

0.061

0.00930.0051

BED1

9/6/2022<0.0020<0.0020<0.0020

BED1-DUP

5/4/2022<0.0020<0.0020<0.0020BED1

5/4/2022<0.0020<0.0020<0.0020

BED1-DUP

2/7/2022<0.0020<0.0020<0.0020BED1

2/7/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

10/19/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/23/2021<0.0020<0.0020<0.0020PT

7/23/2021

0.051

0.00780.0040BED1

5/10/2021<0.0020<0.0020<0.0020

BED1-DUP

5/10/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020

BED1-DUP

11/18/2020<0.0020<0.0020<0.0020

BED1

11/18/2020<0.0020<0.0020<0.0020PT

9/28/2020

0.049

0.00940.0036BED1

9/28/2020<0.0020<0.0020<0.0020BED1

6/4/2020<0.0020<0.0020<0.0020

BED1

2/19/2020<0.0020<0.0020<0.0020BED1

11/14/2019<0.0020<0.0020<0.0020PT

9/13/2019

0.056

0.00920.0038BED1

9/13/2019<0.0020<0.0020<0.0020BED1

5/1/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

BED1

2/18/2019<0.0020<0.0020<0.0020

BED1

11/27/2018<0.0020<0.0020<0.0020PT

7/20/2018

0.045

0.00860.0028BED1

7/20/2018<0.0020<0.0020<0.0020BED1

5/15/2018<0.010PT

5/15/2018<0.010BED1

5/15/2018<0.0020<0.0020<0.0020

12/7/2017

0.047

0.01

0.0033

ADONA<0.0040<0.020<0.020<0.00200.0038

0.046

0.023

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/22/2018.

Location: 256
BED1-DUP

4/23/2024<0.0020<0.0020<0.0020BED1

4/23/2024<0.0020<0.0020<0.0020BED1

1/12/2024<0.0020<0.0020<0.0020

BED1-DUP

10/9/2023<0.0020<0.0020<0.0020BED1

10/9/2023<0.0020<0.0020<0.0020PT

7/13/2023

0.10

0.020

0.017

BED1

7/13/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
SampleBED1

Date
4/11/2023

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 04/11/2023 - 5yr.
BED1-DUP

1/24/2023<0.0020<0.0020<0.0020BED1

1/24/2023<0.0020<0.0020<0.0020

BED1

10/18/2022<0.0020<0.0020<0.0020BED1

7/27/2022<0.0020<0.0020<0.0020PT

7/27/2022

0.067

0.00870.0089

BED1-DUP

7/27/2022<0.0020<0.0020<0.0020BED1

4/26/2022<0.0020<0.0020<0.0020BED1

2/2/2022<0.0020<0.0020<0.0020

BED1

11/15/2021<0.0020<0.0020<0.0020BED1

8/23/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.065

0.011

0.010

BED1

5/24/2021<0.0020<0.0020<0.0020

BED1-DUP

5/24/2021<0.0020<0.0020<0.0020BED1

3/5/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/13/2020<0.0020<0.0020<0.0020

BED1-DUP

7/23/2020<0.0020<0.0020<0.0020PT

7/23/2020

0.069

0.010

0.0080BED1

7/23/2020<0.0020<0.0020<0.0020BED1

6/1/2020<0.0020<0.0020<0.0020BED1

2/18/2020<0.0020<0.0020<0.0020BED1

11/12/2019<0.0020<0.0020<0.0020PT

9/10/2019

0.079

0.00990.0090BED19/10/2019<0.0020<0.0020<0.0020

BED1

5/20/2019<0.0020<0.0020<0.0020

BED1

3/20/2019<0.0020<0.0020<0.0020BED1

10/31/2018<0.00200.0023<0.0020BED1

7/24/2018<0.0020<0.0020<0.0020PT

7/24/2018

0.073

0.010

0.0072

BED1

4/19/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

12/7/2017

0.063

0.012

0.0063<0.020<0.0200.011

0.0061<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.00220.0033

0.059

0.033

<0.00200.00220.0032

0.058

0.034

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 03/13/2018.
-DUP

12/7/2017

0.065

GAC installed 03/13/2018.

Location: 257
BED1

5/24/2024<0.0020<0.0020<0.0020BED1

3/8/2024<0.0020<0.0020<0.0020

BED1-DUP

3/8/2024<0.0020<0.0020<0.0020BED1

12/1/2023<0.0020<0.0020<0.0020

Carbon Changeout 12/01/2023 - 5yr.
PT

8/28/2023

0.068

0.00660.0074BED1

8/28/2023<0.0020<0.0020<0.0020

BED1-DUP

8/28/2023<0.0020<0.0020<0.0020BED1

6/5/2023<0.0020<0.0020<0.0020

BED1-DUP

6/5/2023<0.0020<0.0020<0.0020BED1

3/6/2023<0.0020<0.0020<0.0020

BED1-DUP

11/14/2022<0.0020<0.0020<0.0020BED1

11/14/2022<0.0020<0.0020<0.0020

BED1-DUP

9/12/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/12/2022<0.0020<0.0020<0.0020PT

9/12/2022

0.083

0.00680.0064BED1

6/7/2022<0.0020<0.0020<0.0020BED1

3/8/2022<0.0020<0.0020<0.0020

BED1

11/29/2021<0.0020<0.0020<0.0020BED1

9/7/2021<0.0020<0.0020<0.0020PT

9/7/2021

0.080

0.00750.0069BED1

6/11/2021<0.0020<0.0020<0.0020BED1

2/11/2021<0.0020<0.0020<0.0020

BED1-DUP

11/16/2020<0.0020<0.0020<0.0020

BED1

11/16/2020<0.0020<0.0020<0.0020BED1

9/14/2020<0.0020<0.0020<0.0020PT

9/14/2020

0.075

0.0088 J

0.0066BED1

6/30/2020<0.0020<0.0020<0.0020

BED1

11/18/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/6/2019

0.073

0.00850.0073BED1

9/6/2019<0.0020<0.0020<0.0020BED1

6/25/2019<0.0020<0.0020<0.0020BED1

3/26/2019<0.0020<0.0020<0.0020BED1

11/9/2018<0.0020<0.0020<0.0020PT

8/6/2018

0.086

0.00710.0061

BED1

8/6/2018<0.0020<0.0020<0.0020

12/7/2017

0.082

0.00670.0052NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0022

0.058

0.034

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 05/04/2018.

Location: 258
BED1

6/25/2024<0.0020<0.0020<0.0020

BED1

1/23/2024<0.0020<0.0020<0.0020BED1

12/15/2023<0.0020<0.0020<0.0020PT

9/18/2023

0.056

0.00810.0080

BED1-DUP

9/18/2023<0.0020<0.0020<0.0020BED1

9/18/2023<0.0020<0.0020<0.0020BED1

6/8/2023<0.0020<0.0020<0.0020

Carbon Changeout 06/08/2023 - 5yr.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/6/2023

0.0043<0.0020<0.0020

BED1-DUP

2/6/2023

0.0036<0.0020<0.0020BED2

2/6/2023<0.0020<0.0020<0.0020BED2

10/31/2022<0.0020<0.0020<0.0020

BED1-DUP

10/31/2022

0.0044<0.0020<0.0020BED1

10/31/2022

0.0041<0.0020<0.0020PT

8/9/2022

0.052

0.0057 J

0.0054BED2

8/9/2022<0.0020<0.0020<0.0020BED1

8/9/2022

0.0036<0.0020<0.0020BED2

5/2/2022<0.0020<0.0020<0.0020

BED1-DUP

5/2/2022

0.0035<0.0020<0.0020BED1

5/2/2022

0.0035<0.0020<0.0020BED1

1/31/2022

0.0030<0.0020<0.0020

BED2

1/31/2022<0.0020<0.0020<0.0020

BED1-DUP

1/31/2022

0.0027<0.0020<0.0020

BED1-DUP

10/15/2021

0.0023<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 320 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED2

10/15/2021<0.0020<0.0020<0.0020BED1

10/15/2021

0.0022<0.0020<0.0020PT

7/7/2021

0.061

0.00560.0055BED2

7/7/2021<0.0020<0.0020<0.0020BED1

7/7/2021

0.0033<0.0020<0.0020BED1

4/6/2021<0.0020<0.0020<0.0020BED1

1/14/2021<0.0020<0.0020<0.0020

BED1-DUP

12/10/2020<0.0020<0.0020<0.0020BED1

12/10/2020<0.0020<0.0020<0.0020PT

9/8/2020

0.065

0.00700.0060BED1

9/8/2020<0.0020<0.0020<0.0020BED1

6/23/2020

0.0041<0.0020<0.0020

BED1

2/20/2020<0.0020<0.0020<0.0020

BED1

11/18/2019<0.0020<0.0020<0.0020PT

8/28/2019

0.068

0.00780.0057

BED1-DUP

8/28/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/28/2019<0.0020<0.0020<0.0020

BED1

5/20/2019<0.0020<0.0020<0.0020BED1

2/15/2019<0.0020<0.0020<0.0020BED1

11/12/2018<0.0020<0.0020<0.0020PT

8/20/2018

0.066

0.00640.0041BED1

8/20/2018<0.0020<0.0020<0.0020BED1

4/30/2018<0.0020<0.0020<0.0020

12/7/2017

0.064

0.00650.0042NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0025

0.054

0.032

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/14/2018.

Location: 259
BED1

5/23/2024<0.0020<0.0020<0.0020

BED1-DUP

3/6/2024<0.0020<0.0020<0.0020BED1

3/6/2024<0.0020<0.0020<0.0020

BED1-DUP

11/16/2023<0.0020<0.0020<0.0020

BED1

11/16/2023<0.0020<0.0020<0.0020PT

8/15/2023

0.066

0.00700.0099

BED1-DUP

8/15/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/15/2023<0.0020<0.0020<0.0020BED1

5/30/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 05/30/2023 - 5yr.
BED1-DUP

2/22/2023<0.0020<0.0020<0.0020BED1

2/22/2023<0.0020<0.0020<0.0020BED1

12/6/2022<0.0020<0.0020<0.0020

BED1-DUP

12/6/2022<0.0020<0.0020<0.0020BED1

9/27/2022<0.0020<0.0020<0.0020PT

9/27/2022

0.054

0.00570.0072

BED1

5/31/2022<0.0020<0.0020<0.0020BED1

2/24/2022<0.0020<0.0020<0.0020

BED1

11/23/2021<0.0020<0.0020<0.0020BED1

9/21/2021<0.0020<0.0020<0.0020PT

9/21/2021

0.059

0.00530.0065BED1

6/24/2021<0.0020<0.0020<0.0020

BED1

11/17/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/16/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.071

0.00730.0079BED1

6/25/2020<0.0020<0.0020<0.0020BED1

12/11/2019<0.0020<0.0020<0.0020BED1

9/26/2019<0.0020<0.0020<0.0020PT

9/26/2019

0.070

0.00610.0073BED1

6/3/2019<0.0020<0.0020<0.0020BED1

1/14/2019<0.0020<0.0020<0.0020BED1

10/30/2018<0.0020<0.0020<0.0020PT

7/18/2018

0.072

0.00540.0051BED1

7/18/2018<0.0020<0.0020<0.0020BED1

4/23/2018<0.0020<0.0020<0.0020

12/7/2017

0.07

0.00580.0053NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0024

0.056

0.036

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/20/2018.

Location: 260
BED1

4/17/2024<0.0020<0.0020<0.0020BED1

1/12/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/9/2023<0.0020<0.0020<0.0020BED1

7/24/2023<0.0020<0.0020<0.0020PT

7/24/2023

0.054

0.00470.0052

BED1-DUP

7/24/2023<0.0020<0.0020<0.0020BED1

4/25/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 04/25/2023 - 5yr.
BED1

2/9/2023<0.0020<0.0020<0.0020

BED1-DUP

11/28/2022<0.0020<0.0020<0.0020BED1

11/28/2022<0.0020<0.0020<0.0020PT

9/21/2022

0.053

0.00510.0040BED1

9/21/2022<0.0020<0.0020<0.0020BED1

5/24/2022<0.0020<0.0020<0.0020

BED1-DUP

3/2/2022<0.0020<0.0020<0.0020BED1

3/2/2022<0.0020<0.0020<0.0020

BED1

11/18/2021<0.0020<0.0020<0.0020

BED1-DUP

8/30/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/30/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.078

0.00610.0050BED1

6/11/2021<0.0020<0.0020<0.0020BED1

2/24/2021<0.0020<0.0020<0.0020PT

9/29/2020

0.069

0.00640.0043

BED1

9/29/2020<0.0020<0.0020<0.0020BED1

6/23/2020<0.0020<0.0020<0.0020BED1

3/12/2020<0.0020<0.0020<0.0020BED1

12/4/2019<0.0020<0.0020<0.0020PT

7/31/2019

0.066

0.00580.0040BED1

7/31/2019<0.0020<0.0020<0.0020BED1

4/24/2019<0.0020<0.0020<0.0020

BED1

2/19/2019<0.0020<0.0020<0.0020BED1

11/28/2018<0.0020<0.0020<0.0020PT

8/16/2018

0.057

0.00640.0033NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 326 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/16/2018<0.0020<0.0020<0.0020BED1

5/1/2018<0.0020<0.0020<0.0020

12/7/2017

0.054

0.00580.0031

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

0.0025

0.046

0.025

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 03/20/2018.

Location: 261
BED1

5/9/2024<0.0020<0.0020<0.0020BED1

2/5/2024<0.0020<0.0020<0.0020BED1

11/10/2023<0.0020<0.0020<0.0020PT

8/7/2023

0.017<0.0020<0.0020BED1

8/7/2023<0.0020<0.0020<0.0020BED1

5/9/2023<0.0020<0.0020<0.0020

Carbon Changeout 05/09/2023 - 5yr.
BED1

1/26/2023<0.0020<0.0020<0.0020BED1

10/17/2022<0.0020<0.0020<0.0020PT

8/8/2022

0.011<0.0020<0.0020BED1

8/8/2022<0.0020<0.0020<0.0020BED1

5/5/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/2/2022<0.0020<0.0020<0.0020

BED1-DUP

11/3/2021<0.0020<0.0020<0.0020BED1

11/3/2021<0.0020<0.0020<0.0020PT

8/16/2021

0.0028<0.0020<0.0020BED1

8/16/2021<0.0020<0.0020<0.0020BED1

5/18/2021<0.0020<0.0020<0.0020BED1

2/25/2021<0.0020<0.0020<0.0020BED1

10/15/2020<0.0020<0.0020<0.0020BED1

8/11/2020<0.0020<0.0020<0.0020BED1

8/11/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
PT

8/11/2020

0.0049<0.0020<0.0020PT

8/11/2020

0.0054<0.0020<0.0020

Split sampling for method comparison.
BED1

6/24/2020<0.0020<0.0020<0.0020BED1

3/6/2020<0.0020<0.0020<0.0020BED1

11/1/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 328 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/30/2019<0.0020<0.0020<0.0020BED1

7/30/2019<0.0020<0.0020<0.0020BED1

4/9/2019<0.0020<0.0020<0.0020

BED1-DUP

1/22/2019<0.0020<0.0020<0.0020BED1

1/22/2019<0.0020<0.0020<0.0020

BED1-DUP

10/31/2018<0.0020<0.0020<0.0020BED1

10/31/2018<0.0020<0.0020<0.0020

BED1-DUP

7/19/2018<0.0020<0.0020<0.0020BED1

7/19/2018<0.0020<0.0020<0.0020PT

7/19/2018

0.021

0.0026<0.0020BED1

4/23/2018<0.0020<0.0020<0.0020

BED1-DUP

4/23/2018<0.0020<0.0020<0.0020

12/7/2017

0.016

0.0021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.00230.02

0.0097<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.022

0.011

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/14/2018.

Location: 262
3/21/2022

0.020

PWS connection 10/24/2022. Well re-designated as non-potable 12/05/2022.
12/8/2017

0.013<0.0020<0.0020<0.020<0.020Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

7/15/2024<0.0020<0.0020<0.0020<0.0020<0.0020

7/15/2024<0.0020<0.0020<0.0020<0.0020

5/23/2022<0.0020<0.0020<0.0020

4/26/2021<0.0020<0.0020<0.0020

4/26/2021<0.0020<0.0020<0.0020

8/26/2019<0.0020<0.0020<0.0020

12/13/2017<0.0020<0.0020

12/13/2017<0.0020

12/13/2017

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.013

0.0029<0.0020<0.0020<0.0020<0.00200.013

0.0031<0.020<0.020<0.0020<0.00200.0053<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 263
-DUP

-DUP

Location: 264-DUP

Location: 265
BED1

4/17/2024<0.0020<0.0020<0.0020BED1

1/12/2024<0.0020<0.0020<0.0020BED1

10/3/2023<0.0020<0.0020<0.0020

Carbon Changeout 10/03/2023 - 5yr.
PT

7/13/2023

0.044<0.0020<0.0020

BED1-DUP

7/13/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/13/2023<0.0020<0.0020<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020BED1

1/26/2023<0.0020<0.0020<0.0020BED1

10/24/2022<0.0020<0.0020<0.0020

BED1-DUP

10/24/2022<0.0020<0.0020<0.0020BED1

7/27/2022<0.0020<0.0020<0.0020PT

7/27/2022

0.047<0.0020<0.0020BED1

4/28/2022<0.0020<0.0020<0.0020BED1

2/2/2022<0.0020<0.0020<0.0020

BED1-DUP

2/2/2022<0.0020<0.0020<0.0020BED1

11/5/2021<0.0020<0.0020<0.0020BED1

8/23/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.050<0.0020<0.0020BED1

5/19/2021<0.0020<0.0020<0.0020BED1

2/25/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/15/2020<0.0020<0.0020<0.0020BED1

7/23/2020<0.0020<0.0020<0.0020PT

7/23/2020

0.042<0.0020<0.0020BED1

6/2/2020<0.0020<0.0020<0.0020

BED1

1/20/2020<0.0020<0.0020<0.0020BED1

10/2/2019<0.0020<0.0020<0.0020PT

7/9/2019

0.10<0.00200.0026BED1

7/9/2019<0.0020<0.0020<0.0020BED1

4/5/2019<0.0020<0.0020<0.0020BED1

1/7/2019<0.0020<0.0020<0.0020BED1

10/22/2018<0.0020<0.0020<0.0020PT

7/9/2018

0.029<0.0020<0.0020BED1

7/9/2018<0.0020<0.0020<0.0020

12/13/2017

0.015<0.0020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.0020<0.00200.00940.0072<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/17/2018.

Location: 266
BED1-DUP

5/7/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/7/2024<0.0020<0.0020<0.0020

BED1-DUP

2/28/2024<0.0020<0.0020<0.0020BED1

2/28/2024<0.0020<0.0020<0.0020

BED1-DUP

12/12/2023<0.0020<0.0020<0.0020BED1

12/12/2023<0.0020<0.0020<0.0020BED1

9/13/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 09/13/2023 - 5yr.
PT

9/13/2023

0.058

0.00520.0052

Carbon Changeout 09/13/2023 - 5yr.
BED1-DUP

5/23/2023<0.0020<0.0020<0.0020BED1

5/23/2023<0.0020<0.0020<0.0020BED1

3/13/2023<0.0020<0.0020<0.0020BED1

11/3/2022<0.0020<0.0020<0.0020PT

8/31/2022

0.064

0.00680.0052

BED1-DUP

8/31/2022<0.0020<0.0020<0.0020BED1

8/31/2022<0.0020<0.0020<0.0020

BED1-DUP

5/31/2022<0.0020<0.0020<0.0020BED1

5/31/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/23/2022<0.0020<0.0020<0.0020

BED1-DUP

2/23/2022<0.0020<0.0020<0.0020

BED1

11/29/2021<0.0020<0.0020<0.0020

BED1-DUP

11/29/2021<0.0020<0.0020<0.0020PT

9/1/2021

0.077

0.0076 J

0.0058BED1

9/1/2021<0.0020<0.0020<0.0020BED1

5/17/2021<0.0020<0.0020<0.0020

BED1-DUP

2/24/2021<0.0020<0.0020<0.0020BED1

2/24/2021<0.0020<0.0020<0.0020BED1

11/10/2020<0.0020<0.0020<0.0020PT

9/10/2020

0.066

0.00730.0050BED19/10/2020<0.0020<0.0020<0.0020BED1

6/22/2020<0.0020<0.0020<0.0020BED1

3/17/2020<0.0020<0.0020<0.0020BED1

10/3/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/9/2019

0.069

0.00710.0043

BED1

7/9/2019<0.0020<0.0020<0.0020BED1

4/5/2019<0.0020<0.0020<0.0020

BED1-DUP

1/10/2019<0.0020<0.0020<0.0020BED1

1/10/2019<0.0020<0.0020<0.0020BED1

10/25/2018<0.0020<0.0020<0.0020BED1

7/11/2018<0.0020<0.0020<0.0020

BED1-DUP

7/11/2018<0.0020<0.0020<0.0020PT

7/11/2018

0.062

0.00750.0041

12/13/2017

0.058

0.00790.0038NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0025

0.051

0.025

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/19/2018.

Location: 267
BED1

5/15/2024<0.0020<0.0020<0.0020BED1

2/7/2024<0.0020<0.0020<0.0020

BED1

11/15/2023<0.0020<0.0020<0.0020PT

9/5/2023

0.027<0.0020<0.0020BED1

9/5/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/1/2023<0.0020<0.0020<0.0020

BED1

2/20/2023<0.0020<0.0020<0.0020BED1

10/10/2022<0.0020<0.0020<0.0020

5/23/2022

0.023<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 08/10/2022.

-DUP

4/27/2021

0.0089<0.0020<0.0020

8/9/2019

0.0026<0.0020<0.0020<0.020<0.020<0.0020<0.00200.00700.0025<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040

8/8/2018

0.0047<0.0020<0.0020<0.020<0.020<0.0020<0.00200.015

0.0054<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040

8/8/2018

0.0047<0.0020<0.0020<0.020<0.020<0.0020<0.00200.015

0.0054<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040

12/14/2017<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0053<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 268
BED1

5/23/2024<0.0020<0.0020<0.0020BED1

3/8/2024<0.0020<0.0020<0.0020BED1

11/10/2023<0.0020<0.0020<0.0020PT

7/6/2023

0.063

0.0025<0.0020

Carbon Changeout 07/06/2023 - 5yr.
BED1

7/6/2023<0.0020<0.0020<0.0020

Carbon Changeout 07/06/2023 - 5yr.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

6/14/2023<0.0020<0.0020<0.0020BED1

6/14/2023<0.0020<0.0020<0.0020BED1

2/13/2023<0.0020<0.0020<0.0020BED1

11/10/2022<0.0020<0.0020<0.0020PT

8/25/2022

0.053

0.0022<0.0020BED1

8/25/2022<0.0020<0.0020<0.0020BED1

5/9/2022<0.0020<0.0020<0.0020BED1

2/8/2022<0.0020<0.0020<0.0020

BED1

11/16/2021<0.0020<0.0020<0.0020BED1

8/31/2021<0.0020<0.0020<0.0020PT

8/31/2021

0.065

0.0025 J<0.0020

BED1-DUP

8/31/2021<0.0020<0.0020<0.0020BED1

3/5/2021<0.0020<0.0020<0.0020BED1

10/8/2020<0.0020<0.0020<0.0020BED1

6/30/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/23/2020<0.0020<0.0020<0.0020PT

8/30/2019

0.052

0.0023<0.0020BED1

8/30/2019<0.0020<0.0020<0.0020BED1

5/31/2019<0.0020<0.0020<0.0020

BED1-DUP

2/22/2019<0.0020<0.0020<0.0020BED1

2/22/2019<0.0020<0.0020<0.0020

BED1-DUP

11/13/2018<0.0020<0.0020<0.0020BED1

11/13/2018<0.0020<0.0020<0.0020PT

9/12/2018

0.049<0.0020<0.0020

BED1-DUP

9/12/2018<0.0020<0.0020<0.0020BED1

9/12/2018<0.0020<0.0020<0.0020BED1

6/7/2018<0.0020<0.0020<0.0020

BED1-DUP

6/7/2018<0.0020<0.0020<0.0020

12/14/2017

0.041<0.0020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0028

0.041

0.019

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/28/2018.

Location: 269
BED1

5/30/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 338 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/22/2024<0.0020<0.0020<0.0020

BED1

10/23/2023<0.0020<0.0020<0.0020PT

8/9/2023

0.11

0.0038

0.014

BED1

8/9/2023<0.0020<0.0020<0.0020

BED1-DUP

5/18/2023<0.0020<0.0020<0.0020BED1

5/18/2023<0.0020<0.0020<0.0020

BED1-DUP

3/1/2023<0.0020<0.0020<0.0020BED1

3/1/2023<0.0020<0.0020<0.0020BED1

12/1/2022<0.0020<0.0020<0.0020

BED1

9/20/2022<0.0020<0.0020<0.0020PT

9/20/2022

0.11

0.0036

0.014

BED1

6/2/2022<0.0020<0.0020<0.0020BED1

2/16/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 12/09/2021 - Pressure.
BED1

11/5/2021<0.0020<0.0020<0.0020PT

8/18/2021

0.11

0.00470.018

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/18/2021<0.0020<0.0020<0.0020BED1

6/4/2021<0.0020<0.0020<0.0020

BED1-DUP

6/4/2021<0.0020<0.0020<0.0020BED1

3/12/2021<0.0020<0.0020<0.0020

BED1-DUP

3/12/2021<0.0020<0.0020<0.0020BED1

11/9/2020<0.0020<0.0020<0.0020BED1

9/9/2020<0.0020<0.0020<0.0020PT

9/9/2020

0.095

0.0048

0.014

BED1

6/24/2020<0.0020<0.0020<0.0020BED1

2/11/2020<0.0020<0.0020<0.0020BED1

11/8/2019<0.0020<0.0020<0.0020PT

8/30/2019

0.11

0.0054

0.016

BED1

8/30/2019<0.0020<0.0020<0.0020BED1

5/10/2019<0.0020<0.0020<0.0020

BED1-DUP

3/15/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

BED1

3/15/2019<0.0020<0.0020<0.0020

BED1-DUP

12/3/2018<0.0020<0.0020<0.0020BED1

12/3/2018<0.0020<0.0020<0.0020PT

8/27/2018

0.097

0.00480.015

BED1-DUP

8/27/2018<0.0020<0.0020<0.0020BED1

8/27/2018<0.0020<0.0020<0.0020PT

5/10/2018<0.010 UJ

BED1

5/10/2018<0.010

BED1-DUP

4/18/2018<0.0020<0.0020<0.0020BED1

4/18/2018<0.0020<0.0020<0.0020

12/14/2017

0.087

0.0041

0.011

ADONA

<0.0040<0.020<0.020<0.0020<0.0020

0.064

0.04

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/27/2018.

Location: 270
BED1

5/17/2024<0.0020<0.0020<0.0020

BED1-DUP

2/8/2024<0.0020<0.0020<0.0020BED1

2/8/2024<0.0020<0.0020<0.0020

BED1-DUP

10/27/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/27/2023<0.0020<0.0020<0.0020PT

8/15/2023

0.072

0.00650.0041

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 08/15/2023 - 5yr.
BED1

8/15/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/15/2023 - 5yr.
BED1

5/9/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/15/2023 - 5yr.
BED1

1/26/2023<0.0020<0.0020<0.0020BED1

11/1/2022<0.0020<0.0020<0.0020

BED1-DUP

8/11/2022<0.0020<0.0020<0.0020BED1

8/11/2022<0.0020<0.0020<0.0020PT

8/11/2022

0.056

0.00490.0033BED1

5/9/2022<0.0020<0.0020<0.0020BED1

2/8/2022<0.0020<0.0020<0.0020

BED1

11/18/2021<0.0020<0.0020<0.0020BED1

8/23/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.066

0.00580.0033

BED1

6/9/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 342 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/15/2021<0.0020<0.0020<0.0020BED1

12/1/2020<0.0020<0.0020<0.0020BED1

8/25/2020<0.0020<0.0020<0.0020PT

8/25/2020

0.051

0.00470.0022

BED1

6/12/2020<0.0020<0.0020<0.0020BED1

2/18/2020<0.0020<0.0020<0.0020

BED1-DUP

11/15/2019<0.0020<0.0020<0.0020

BED1

11/15/2019<0.0020<0.0020<0.0020PT

9/10/2019

0.056

0.00570.0028BED1

9/10/2019<0.0020<0.0020<0.0020BED1

5/9/2019<0.0020<0.0020<0.0020BED1

3/12/2019<0.0020<0.0020<0.0020BED1

11/13/2018<0.0020<0.0020<0.0020PT

9/12/2018

0.057

0.00580.0027BED1

9/12/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

12/15/2017

0.045

0.00470.0021

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

0.002

0.042

0.022

PFDA
<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/03/2018.

Location: 271
BED1

5/24/2024<0.0020<0.0020<0.0020BED1

2/2/2024<0.0020<0.0020<0.0020

BED1-DUP

2/2/2024<0.0020<0.0020<0.0020

BED1-DUP

11/3/2023<0.0020<0.0020<0.0020BED1

11/3/2023<0.0020<0.0020<0.0020PT

8/21/2023

0.066

0.00830.0075

BED1

8/21/2023<0.0020<0.0020<0.0020BED1

5/26/2023<0.0020<0.0020<0.0020

Carbon Changeout 05/26/2023 - 5yr.
BED2

1/30/2023<0.0020<0.0020<0.0020BED1

1/30/2023

0.0022<0.0020<0.0020

BED1

10/21/2022

0.0023<0.0020<0.0020

BED2

10/21/2022<0.0020<0.0020<0.0020BED1

8/11/2022<0.0020<0.0020<0.0020PT

8/11/2022

0.060

0.00690.0058

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED2

5/9/2022<0.0020<0.0020<0.0020BED1

5/9/2022

0.0023<0.0020<0.0020BED1

2/7/2022

0.0023<0.0020<0.0020BED2

2/7/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

11/12/2021<0.0020<0.0020<0.0020

BED1-DUP

11/12/2021<0.0020<0.0020<0.0020BED1

8/27/2021<0.0020<0.0020<0.0020PT

8/27/2021

0.063

0.00810.0065BED1

5/26/2021<0.0020<0.0020<0.0020

BED1-DUP

5/26/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020

BED1-DUP

2/15/2021<0.0020<0.0020<0.0020BED1

10/28/2020<0.0020<0.0020<0.0020PT

8/25/2020

0.063

0.00680.0056BED1

8/25/2020<0.0020<0.0020<0.0020BED1

6/17/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 345 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/6/2020<0.0020<0.0020<0.0020BED1

10/24/2019<0.0020<0.0020<0.0020PT

8/2/2019

0.074

0.00670.0047BED1

8/2/2019<0.0020<0.0020<0.0020BED1

4/18/2019<0.0020<0.0020<0.0020BED1

1/24/2019<0.0020<0.0020<0.0020BED1

11/2/2018<0.0020<0.0020<0.0020PT

7/19/2018

0.065

0.00700.0037BED1

7/19/2018<0.0020<0.0020<0.0020BED1

4/26/2018<0.0020<0.0020<0.0020

12/22/2017

0.068

0.00810.0042NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0023

0.049

0.027

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/23/2018.

Location: 272
BED1

5/21/2024<0.0020<0.0020<0.0020BED1

3/8/2024<0.0020<0.0020<0.0020BED1

12/15/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

9/26/2023<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 09/26/2023 - 5yr.
PT

9/26/2023

0.049

0.0031<0.0020

Carbon Changeout 09/26/2023 - 5yr.
BED1

5/16/2023<0.0020<0.0020<0.0020

BED1

2/21/2023<0.0020<0.0020<0.0020

BED1

11/17/2022<0.0020<0.0020<0.0020BED1

9/12/2022<0.0020<0.0020<0.0020PT

9/12/2022

0.053

0.0031<0.0020

BED1-DUP

6/29/2022<0.0020<0.0020<0.0020BED1

6/29/2022<0.0020<0.0020<0.0020BED1

2/8/2022<0.0020<0.0020<0.0020

BED1

11/17/2021<0.0020<0.0020<0.0020PT

9/3/2021

0.043

0.0040<0.0020BED1

9/3/2021<0.0020 UJ <0.0020<0.0020 UJ

BED1-DUP

5/21/2021<0.0020<0.0020<0.0020

BED1

5/21/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/26/2021<0.0020<0.0020<0.0020BED1

11/9/2020<0.0020<0.0020<0.0020PT

9/9/2020

0.037

0.0026<0.0020

BED1-DUP

9/9/2020<0.0020<0.0020<0.0020BED1

9/9/2020<0.0020<0.0020<0.0020BED1

6/25/2020<0.0020<0.0020<0.0020BED1

3/6/2020<0.0020<0.0020<0.0020BED1

12/13/2019<0.0020<0.0020<0.0020PT

9/23/2019

0.028

0.0026<0.0020BED1

9/23/2019<0.0020<0.0020<0.0020BED1

6/25/2019<0.0020<0.0020<0.0020BED1

2/26/2019<0.0020<0.0020<0.0020BED1

10/26/2018<0.0020<0.0020<0.0020BED1

7/9/2018<0.0020<0.0020<0.0020PT

7/9/2018

0.029

0.0026<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

12/22/2017

0.017

0.0028<0.0020<0.020<0.020<0.00200.0032<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.021

0.0099<0.0020<0.00200.0022

0.088

0.052

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 04/24/2018.

Location: 273
12/22/2017

0.062

PWS connection 1Q18. Well decommissioned 05/25/2023.

Location: 274
BED1

5/21/2024<0.0020<0.0020<0.0020BED1

3/8/2024<0.0020<0.0020<0.0020

BED1-DUP

11/14/2023<0.0020<0.0020<0.0020BED1

11/14/2023<0.0020<0.0020<0.0020PT

7/28/2023

0.033

0.00290.0021BED1

7/28/2023<0.0020<0.0020<0.0020BED1

4/25/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 04/25/2023 - 5yr.
BED1-DUP

3/21/2023<0.0020<0.0020<0.0020

BED1

3/21/2023<0.0020<0.0020<0.0020

BED1-DUP

12/27/2022<0.0020<0.0020<0.0020BED1

12/27/2022<0.0020<0.0020<0.0020PT

9/14/2022

0.037

0.00360.0022Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/14/2022<0.0020<0.0020<0.0020

BED1-DUP

9/14/2022<0.0020<0.0020<0.0020BED1

6/8/2022<0.0020<0.0020<0.0020

BED1-DUP

6/8/2022<0.0020<0.0020<0.0020BED1

3/3/2022<0.0020<0.0020<0.0020BED1

12/6/2021<0.0020<0.0020<0.0020

BED1-DUP

12/6/2021<0.0020<0.0020<0.0020BED1

9/9/2021<0.0020<0.0020<0.0020PT

9/9/2021

0.047

0.00450.0032

BED1

5/21/2021<0.0020<0.0020<0.0020BED1

2/26/2021<0.0020<0.0020<0.0020BED1

12/8/2020<0.0020<0.0020<0.0020BED1

9/22/2020<0.0020<0.0020<0.0020PT

9/22/2020

0.019

0.0024<0.0020BED1

6/2/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

PT

9/13/2019

0.045

0.012

0.0026BED1

9/13/2019<0.0020<0.0020<0.0020BED1

4/30/2019<0.0020<0.0020<0.0020BED1

3/1/2019<0.0020<0.0020<0.0020BED1

9/25/2018<0.0020<0.0020<0.0020PT

9/25/2018

0.032

0.0040<0.0020BED1

6/1/2018<0.0020<0.0020<0.0020

12/28/2017

0.03

0.004

<0.0020<0.020<0.020<0.00200.0024

0.03

0.015

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/5/2022

0.0050<0.0020<0.0020

4/27/2021

0.0056<0.0020<0.0020

8/9/2019

0.0057<0.0020<0.0020<0.020<0.020<0.0020<0.00200.00810.0043<0.0020<0.0020<0.0020<0.0020<0.0020

1/3/2018

0.0037<0.0020<0.0020<0.020<0.020<0.0020<0.00200.00740.0032<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 03/28/2018.

Location: 275
1/3/2018

Location: 276<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

6/1/2022<0.0020<0.0020<0.0020

4/19/2021<0.0020<0.0020<0.0020

4/19/2021<0.0020<0.0020<0.0020

1/3/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 277

PRE<0.020<0.020<0.0020<0.0020<0.0020

Location: 278
BED1

5/17/2024<0.0020<0.0020<0.0020BED1

2/29/2024<0.0020<0.0020<0.0020BED1

11/30/2023<0.0020<0.0020<0.0020

Carbon Changeout 11/30/2023 - 5yr.
PT

8/21/2023<0.0020<0.0020<0.0020BED1

8/21/2023<0.0020<0.0020<0.0020BED1

6/1/2023<0.0020<0.0020<0.0020BED1

3/16/2023<0.0020<0.0020<0.0020BED1

12/7/2022<0.0020<0.0020<0.0020BED1

9/28/2022<0.0020<0.0020<0.0020PT

9/28/2022

0.071

0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

6/22/2022<0.0020<0.0020<0.0020BED1

6/22/2022<0.0020<0.0020<0.0020

BED1-DUP

3/16/2022<0.0020<0.0020<0.0020BED1

3/16/2022<0.0020<0.0020<0.0020

BED1-DUP

12/1/2021<0.0020<0.0020<0.0020BED1

12/1/2021<0.0020<0.0020<0.0020

BED1-DUP

9/22/2021<0.0020<0.0020<0.0020BED1

9/22/2021<0.0020<0.0020<0.0020PT

9/22/2021

0.064<0.0020<0.0020

BED1-DUP

6/23/2021<0.0020<0.0020<0.0020BED1

6/23/2021<0.0020<0.0020<0.0020

BED1-DUP

3/5/2021<0.0020<0.0020<0.0020BED1

3/5/2021<0.0020<0.0020<0.0020BED1

12/15/2020<0.0020<0.0020<0.0020

BED1-DUP

8/3/2020<0.002<0.002<0.002

BED1

8/3/2020<0.002<0.002<0.002NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

PT

8/3/2020

0.1<0.002<0.002

BED1

3/13/2020<0.0020<0.0020<0.0020

BED1

11/19/2019<0.0020<0.0020<0.0020PT

9/4/2019

0.076

0.002

<0.0020BED1

9/4/2019<0.0020<0.0020<0.0020BED1

6/4/2019<0.0020<0.0020<0.0020

BED1

3/29/2019<0.0020<0.0020<0.0020BED1

11/28/2018<0.0020<0.0020<0.0020PT

8/3/2018

0.081<0.0020<0.0020BED1

8/3/2018<0.0020<0.0020<0.0020

1/3/2018

0.037<0.0020<0.0020<0.020<0.020<0.0020<0.0020

0.048

0.024

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020

0.045

0.025

<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 05/30/2018.
-DUP

1/3/2018

0.037

GAC installed 05/30/2018.

Location: 279
BED1-DUP

4/16/2024<0.0020<0.0020<0.0020BED1

4/16/2024<0.0020<0.0020<0.0020BED1

1/12/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

10/11/2023<0.0020<0.0020<0.0020BED1

10/11/2023<0.0020<0.0020<0.0020PT

7/28/2023

0.012<0.0020<0.0020

BED1-DUP

7/28/2023<0.0020<0.0020<0.0020BED1

7/28/2023<0.0020<0.0020<0.0020BED1

4/6/2023<0.0020<0.0020<0.0020

BED1-DUP

4/6/2023<0.0020<0.0020<0.0020BED1

1/18/2023<0.0020<0.0020<0.0020

BED1

10/18/2022<0.0020<0.0020<0.0020PT

7/25/2022

0.0099<0.0020<0.0020BED1

7/25/2022<0.0020<0.0020<0.0020POST

3/14/2022

0.0088<0.0020<0.00200.0021 J

0.0077

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 04/26/2022.
PRE

3/14/2022

0.052

GAC installed 04/26/2022.
7/22/2019

0.0077<0.0020<0.0020<0.020<0.020<0.0020<0.00200.013

0.0053<0.0020<0.0020<0.0020<0.0020<0.0020

1/8/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 280
BED1

4/19/2024<0.0020<0.0020<0.0020

BED1-DUP

4/19/2024<0.0020<0.0020<0.0020BED1

1/12/2024<0.0020<0.0020<0.0020BED1

10/4/2023<0.0020<0.0020<0.0020

Carbon Changeout 10/04/2023 - 5yr.
PT

7/14/2023

0.056

0.00910.0069BED1

7/14/2023<0.0020<0.0020<0.0020

BED1-DUP

4/19/2023<0.0020<0.0020<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020BED1

1/31/2023<0.0020<0.0020<0.0020

BED1-DUP

10/21/2022<0.0020<0.0020<0.0020

BED1

10/21/2022<0.0020<0.0020<0.0020BED1

8/16/2022<0.0020<0.0020<0.0020

BED1-DUP

8/16/2022<0.0020<0.0020<0.0020PT

8/16/2022

0.060

0.00900.0063

BED1

4/27/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 356 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/26/2022<0.0020<0.0020<0.0020BED1

10/26/2021<0.0020<0.0020<0.0020BED1

8/2/2021<0.0020<0.0020<0.0020PT

8/2/2021

0.064

0.012

0.0076BED1

4/30/2021<0.0020<0.0020<0.0020

BED1-DUP

4/30/2021<0.0020<0.0020<0.0020

BED1-DUP

2/10/2021<0.0020<0.0020<0.0020BED1

2/10/2021<0.0020<0.0020<0.0020BED1

10/29/2020<0.0020<0.0020<0.0020PT

9/1/2020

0.054

0.010

0.0054BED1

9/1/2020<0.0020<0.0020<0.0020BED1

6/17/2020<0.0020<0.0020<0.0020BED1

2/7/2020<0.0020<0.0020<0.0020PT

9/13/2019

0.067

0.00970.0051BED1

9/13/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

5/24/2019<0.0020<0.0020<0.0020BED1

5/24/2019<0.0020<0.0020<0.0020BED1

3/8/2019<0.0020<0.0020<0.0020BED1

10/26/2018<0.0020<0.0020<0.0020PT

7/16/2018

0.060

0.011

0.0046

BED1-DUP

7/16/2018<0.0020<0.0020<0.0020BED1

7/16/2018<0.0020<0.0020<0.0020

1/8/2018

0.049

0.0091

0.004

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0036

0.043

0.023

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/17/2018.

Location: 281
BED1

2/16/2024<0.0020<0.0020<0.0020BED1

10/10/2023<0.0020<0.0020<0.0020PT

7/5/2023

0.15<0.0020<0.0020BED1

7/5/2023<0.0020<0.0020<0.0020

BED1

11/15/2022<0.0020<0.0020<0.0020PT

9/7/2022

0.082<0.0020<0.0020BED1

9/7/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

5/31/2022<0.0020<0.0020<0.0020

BED1-DUP

3/9/2022<0.0020<0.0020<0.0020BED1

3/9/2022<0.0020<0.0020<0.0020BED1

12/1/2021<0.0020<0.0020<0.0020

BED1-DUP

6/30/2021<0.0020<0.0020<0.0020BED1

6/30/2021<0.0020<0.0020<0.0020BED1

2/17/2021<0.0020<0.0020<0.0020PT

9/8/2020

0.080<0.0020<0.0020BED1

9/8/2020<0.0020<0.0020<0.0020BED1

6/23/2020<0.0020<0.0020<0.0020BED1

2/18/2020<0.0020<0.0020<0.0020PT

9/19/2019

0.075<0.0020<0.0020BED1

9/19/2019<0.0020<0.0020<0.0020

1/9/2018

0.07<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.048

0.027

<0.0020<0.0020<0.00200.00390.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/14/2019.

Location: 282-DUP

7/8/2024

0.0036<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

7/8/2024

0.0027<0.0020<0.0020

6/20/2022

0.0021<0.0020<0.0020

4/21/2021

0.0023<0.0020<0.0020

8/22/2019<0.0020<0.0020

1/26/2018

0.0024

4/3/2023

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.00200.0033<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0032<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0026<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0034<0.0020<0.0020

4/3/2023

0.0035<0.0020<0.0020

6/8/2021

0.0033<0.0020<0.0020

2/2/2018

0.0025<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA<0.0020<0.0020

Location: 283-DUP

Location: 284
BED1

6/21/2024<0.0020<0.0020<0.0020BED1

2/29/2024<0.0020<0.0020<0.0020BED1

11/30/2023<0.0020<0.0020<0.0020PT

9/11/2023

0.082

0.0069 J

0.0031BED1

9/11/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

6/7/2023<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 06/07/2023 - 5yr.
BED1

2/7/2023<0.0020<0.0020<0.0020BED1

11/9/2022<0.0020<0.0020<0.0020PT

8/31/2022

0.065

0.00520.0025BED1

8/31/2022<0.0020<0.0020<0.0020BED1

5/23/2022<0.0020<0.0020<0.0020BED1

2/16/2022<0.0020<0.0020<0.0020

BED1

11/16/2021<0.0020<0.0020<0.0020PT

9/8/2021

0.065

0.00520.0037BED1

9/8/2021<0.0020<0.0020<0.0020BED1

6/3/2021<0.0020<0.0020<0.0020BED1

2/16/2021<0.0020<0.0020<0.0020BED1

12/3/2020<0.0020<0.0020<0.0020BED1

9/16/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.067

0.00650.0038

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/24/2020<0.0020<0.0020<0.0020BED1

3/4/2020<0.0020<0.0020<0.0020BED1

12/12/2019<0.0020<0.0020<0.0020PT

9/30/2019

0.064

0.00340.0035BED1

9/30/2019<0.0020<0.0020<0.0020BED1

5/1/2019<0.0020<0.0020<0.0020BED1

3/8/2019<0.0020<0.0020<0.0020BED1

11/5/2018<0.0020<0.0020<0.0020PT

8/1/2018

0.074

0.0048 B

0.0032

BED1

8/1/2018<0.0020<0.0020<0.0020

BED1

4/20/2018<0.0020<0.0020<0.0020

2/9/2018

0.19 J

0.00540.0027

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0036

0.069

0.038

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/23/2018.

Location: 285
BED1

5/21/2024<0.0020<0.0020<0.0020BED1

3/12/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

11/15/2023<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

Carbon Changeout 11/15/2023 - 5yr.
BED1

7/14/2023<0.0020<0.0020<0.0020PT

7/14/2023

0.040

0.00320.0027BED1

4/11/2023<0.0020<0.0020<0.0020BED1

1/12/2023<0.0020<0.0020<0.0020BED1

10/6/2022<0.0020<0.0020<0.0020PT

7/11/2022

0.046

0.00340.0025

BED1

7/11/2022<0.0020<0.0020<0.0020BED1

4/7/2022<0.0020<0.0020<0.0020BED1

1/6/2022<0.0020<0.0020<0.0020BED1

10/8/2021<0.0020<0.0020<0.0020BED1

7/14/2021<0.0020<0.0020<0.0020PT

7/14/2021

0.053

0.00410.0035BED1

4/13/2021<0.0020<0.0020<0.0020

BED1-DUP

4/13/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/2/2020<0.0020<0.0020<0.0020

BED1-DUP

8/31/2020<0.0020<0.0020<0.0020BED1

8/31/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.048

0.00370.0034BED1

6/18/2020<0.0020<0.0020<0.0020BED1

3/5/2020<0.0020<0.0020<0.0020BED1

11/8/2019<0.0020<0.0020<0.0020BED1

8/27/2019<0.0020<0.0020<0.0020PT

8/27/2019

0.038

0.00260.0021

BED1

5/9/2019<0.0020<0.0020<0.0020BED1

3/11/2019<0.00200.0044<0.0020BED1

11/14/2018<0.0020<0.0020<0.0020PT

8/23/2018

0.037

0.00340.0027BED1

8/23/2018<0.0020<0.0020<0.0020

2/16/2018

0.03

0.003

<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0021

0.029

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/18/2018.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
-DUP

Date

PFOA

PFOS

PFNA

2/16/2018

0.031

0.003

<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

0.002

0.028

0.014

PFDA
<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 04/18/2018.

Location: 286
BED1

5/15/2024<0.0020<0.0020<0.0020

BED1-DUP

5/15/2024<0.0020<0.0020<0.0020BED1

3/6/2024<0.0020<0.0020<0.0020BED1

12/12/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 12/12/2023 - 5yr.
PT

9/11/2023

0.067

0.0041 J

0.012

BED2

9/11/2023<0.0020<0.0020<0.0020

BED1-DUP

9/11/2023

0.0037<0.0020<0.0020BED1

9/11/2023

0.0041<0.0020<0.0020

BED1-DUP

6/21/2023<0.0020<0.0020<0.0020

BED1

6/21/2023<0.0020<0.0020<0.0020BED1

3/13/2023<0.0020<0.0020<0.0020

BED1-DUP

3/13/2023<0.0020<0.0020<0.0020

BED1

12/19/2022<0.0020<0.0020<0.0020

BED1-DUP

12/19/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/25/2022<0.0020<0.0020<0.0020PT

7/25/2022

0.077

0.0037

0.012

BED1

3/23/2022<0.0020<0.0020<0.0020BED1

12/7/2021<0.0020<0.0020<0.0020

BED1-DUP

12/7/2021<0.0020<0.0020<0.0020

BED1-DUP

9/1/2021<0.0020<0.0020<0.0020BED1

9/1/2021<0.0020<0.0020<0.0020PT

9/1/2021

0.092

0.0051 J

0.015

BED1

6/28/2021<0.0020<0.0020<0.0020BED1

10/5/2020<0.0020<0.0020<0.0020BED1

6/30/2020<0.0020<0.0020<0.0020

BED1-DUP

9/20/2019<0.0020<0.0020<0.0020

BED1

9/20/2019<0.0020<0.0020<0.0020PT

9/20/2019

0.072

0.0037

0.011

BED1

3/29/2019<0.0020<0.0020<0.0020PT

12/14/2018

0.078

0.00410.0096

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

12/14/2018<0.0020<0.0020<0.0020

2/16/2018

0.074

0.00380.0086

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.0200.0038<0.0020

0.057

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 06/15/2018.

Location: 287
6/5/2023<0.0020<0.0020<0.0020

4/19/2021<0.0020<0.0020<0.0020

2/23/2018<0.0020<0.0020<0.0020

Location: 288
BED1

6/18/2024<0.0020<0.0020<0.0020BED1

3/11/2024<0.0020<0.0020<0.0020

BED1-DUP

11/27/2023<0.0020<0.0020<0.0020

BED1

11/27/2023<0.0020<0.0020<0.0020PT

8/29/2023

0.039

0.013

0.0085

Carbon Changeout 08/29/2023 - 5yr.
BED1

8/29/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/29/2023 - 5yr.
BED1

5/2/2023<0.0020<0.0020<0.0020BED1

1/31/2023<0.0020<0.0020<0.0020BED1

10/25/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/2/2022

0.037 J

0.014 J

0.0089 J

BED1

8/2/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

4/21/2022<0.0020<0.0020<0.0020BED1

1/24/2022<0.0020<0.0020<0.0020

BED1

10/18/2021<0.0020<0.0020<0.0020BED1

8/2/2021<0.0020<0.0020<0.0020PT

8/2/2021

0.047

0.018

0.0091BED1

4/22/2021<0.0020<0.0020<0.0020

BED1-DUP

4/22/2021<0.0020<0.0020<0.0020BED1

1/22/2021<0.0020<0.0020<0.0020BED1

10/15/2020<0.0020<0.0020<0.0020PT

8/12/2020

0.044

0.016

0.010

BED1

8/12/2020<0.0020<0.0020<0.0020

BED1-DUP

6/10/2020<0.0020<0.0020<0.0020BED1

6/10/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/29/2020<0.0020<0.0020<0.0020BED1

10/16/2019<0.0020<0.0020<0.0020BED1

7/26/2019<0.0020<0.0020<0.0020PT

7/26/2019

0.061

0.024

0.0096BED1

4/17/2019<0.0020<0.0020<0.0020BED1

2/5/2019<0.0020<0.0020<0.0020BED1

11/8/2018<0.0020<0.0020<0.0020BED1

8/2/2018<0.0020<0.0020<0.0020PT

8/2/2018

0.046

0.013

0.0077

3/9/2018

0.068

0.02

0.013

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.00240.0027

0.048

0.025

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/18/2018.

Location: 289
BED1

4/4/2024<0.0020<0.0020<0.0020BED1

1/31/2024<0.0020<0.0020<0.0020

Carbon Changeout 01/31/2024 - 5yr.
BED1

10/9/2023<0.0020<0.0020<0.0020PT

7/26/2023

0.00220.0032<0.0020BED1

7/26/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/5/2023<0.0020<0.0020<0.0020BED1

1/4/2023<0.0020<0.0020<0.0020BED1

10/3/2022<0.0020<0.0020<0.0020PT

7/6/2022<0.0020<0.0020<0.0020BED1

7/6/2022<0.0020<0.0020<0.0020BED1

4/5/2022<0.0020<0.0020<0.0020BED1

1/5/2022<0.0020<0.0020<0.0020

BED1-DUP

10/12/2021<0.0020<0.0020<0.0020BED1

10/12/2021<0.0020<0.0020<0.0020

BED1

7/21/2021<0.0020<0.0020<0.0020

BED1-DUP

7/21/2021<0.0020<0.0020<0.0020PT

7/21/2021<0.0020<0.0020<0.0020BED1

4/28/2021<0.0020<0.0020<0.0020

BED1-DUP

4/28/2021<0.0020<0.0020<0.0020BED1

2/5/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

2/5/2021<0.0020<0.0020<0.0020BED1

10/22/2020<0.0020<0.0020<0.0020BED1

8/25/2020<0.0020<0.0020<0.0020

BED1-DUP

8/25/2020<0.0020<0.0020<0.0020PT

8/25/2020<0.0020<0.0020<0.0020BED1

6/11/2020<0.0020<0.0020<0.0020BED1

3/3/2020<0.0020<0.0020<0.0020

BED1

10/23/2019<0.0020<0.0020<0.0020BED1

8/2/2019<0.0020<0.0020<0.0020PT

8/2/2019<0.0020<0.0020<0.0020

BED1-DUP

4/26/2019<0.0020<0.0020<0.0020BED1

4/26/2019<0.0020<0.0020<0.0020

BED1

2/21/2019<0.0020<0.0020<0.0020

BED1

11/27/2018<0.0020<0.0020<0.0020PT

9/28/2018

0.00500.010

0.0042NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

9/28/2018<0.0020<0.0020<0.0020

3/9/2018

0.02

0.023

0.014

<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS

0.0061

PFHxS

PFHxA

PFHpA

0.002

0.013

0.0089PFDA

0.0044

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 06/22/2018.

Location: 290
BED1

4/2/2024<0.0020BED1

2/15/2024<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 02/15/2024 - 5yr.
BED2

10/13/2023<0.0020<0.0020<0.0020BED1

10/13/2023

0.0083<0.0020<0.0020PT

8/2/2023

0.043

0.00470.0071

BED2

8/2/2023<0.0020<0.0020<0.0020BED1

8/2/2023

0.0071<0.0020<0.0020BED2

5/2/2023<0.0020<0.0020<0.0020BED1

5/2/2023

0.0045<0.0020<0.0020BED2

2/7/2023<0.0020<0.0020<0.0020BED1

2/7/2023

0.0042<0.0020<0.0020

BED2

11/14/2022<0.0020<0.0020<0.0020BED1

11/14/2022

0.0035<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/6/2022

0.0066<0.0020<0.0020BED2

9/6/2022<0.0020<0.0020<0.0020PT

9/6/2022

0.054

0.00530.0069BED1

6/1/2022

0.0064<0.0020<0.0020BED2

6/1/2022<0.0020<0.0020<0.0020

BED2

2/23/2022<0.0020<0.0020<0.0020BED1

2/23/2022

0.0025<0.0020<0.0020BED2

3/2/2021<0.0020<0.0020<0.0020BED1

3/2/2021

0.0027<0.0020<0.0020

BED1

10/21/2020

0.0032<0.0020<0.0020BED1

8/17/2020

0.0047<0.0020<0.0020PT

8/17/2020

0.054

0.00570.0051BED1

6/26/2020

0.0036<0.0020<0.0020PT

9/13/2019

0.061

0.00710.0053

BED1

9/13/2019<0.0020<0.0020<0.0020BED1

6/28/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

3/28/2019<0.0020<0.0020<0.0020BED1

12/13/2018<0.0020<0.0020<0.0020PT

12/13/2018

0.050

0.00680.0034-DUP

3/9/2018

0.047

0.00660.0034<0.020<0.020<0.0020<0.0020

0.036

0.02

<0.0020<0.0020<0.0020<0.0020<0.00200.00680.0034<0.020<0.020<0.0020<0.0020

0.038

0.018

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 09/18/2018.
3/9/2018

0.045

GAC installed 09/18/2018.

Location: 291
5/3/2021<0.0020<0.0020<0.0020

3/12/2018<0.0020<0.0020<0.0020

4/25/2022<0.0020<0.0020<0.0020

3/26/2021<0.0020<0.0020<0.0020

3/19/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/19/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

POST-DUP

3/19/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

POST

3/19/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 292-DUP

Location: 293
8/21/2023

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

5/21/2021<0.0020<0.0020<0.0020

8/14/2019<0.0020<0.0020<0.0020<0.020<0.0203/26/2018<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.0099 J

Location: 294
3/26/2018

Location: 295
BED1

5/21/2024<0.0020<0.0020<0.0020BED1

2/16/2024<0.0020<0.0020<0.0020BED1

10/10/2023<0.0020<0.0020<0.0020

Carbon Changeout 10/10/2023 - 5yr.
PT

7/11/2023

0.037

0.0026<0.0020BED1

7/11/2023<0.0020<0.0020<0.0020BED1

4/6/2023<0.0020<0.0020<0.0020

BED1-DUP

1/26/2023<0.0020<0.0020<0.0020BED1

1/26/2023<0.0020<0.0020<0.0020BED1

10/25/2022<0.0020<0.0020<0.0020PT

8/4/2022

0.040

0.0029<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/4/2022<0.0020<0.0020<0.0020BED1

4/19/2022<0.0020<0.0020<0.0020BED1

1/24/2022<0.0020<0.0020<0.0020BED1

10/25/2021<0.0020<0.0020<0.0020BED1

8/3/2021<0.0020<0.0020<0.0020

BED1-DUP

8/3/2021<0.0020<0.0020<0.0020PT

8/3/2021

0.037

0.0031<0.0020BED1

4/28/2021<0.0020<0.0020<0.0020BED1

2/3/2021<0.0020<0.0020<0.0020PT

9/14/2020

0.031

0.0029 J<0.0020BED1

9/14/2020<0.0020<0.0020<0.0020BED1

6/24/2020<0.0020<0.0020<0.0020

BED1

12/19/2019<0.0020<0.0020<0.0020PT

9/13/2019

0.028

0.0027<0.0020BED1

9/13/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

5/17/2019<0.0020<0.0020<0.0020BED1

5/17/2019<0.0020<0.0020<0.0020BED1

3/22/2019<0.0020<0.0020<0.0020BED1

12/14/2018<0.0020<0.0020<0.0020BED1

9/28/2018<0.0020<0.0020<0.0020PT

9/28/2018

0.021

0.0026<0.0020

3/26/2018

0.024

0.0029<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.020<0.00200.0028

0.024

0.012

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 06/15/2018.

Location: 296

-DUP

-DUP

4/18/2024<0.0020<0.0020<0.0020

4/18/2024<0.0020<0.0020<0.0020

4/27/2022<0.0020<0.0020<0.0020

4/27/2022<0.0020<0.0020<0.0020

3/25/2021<0.0020<0.0020<0.0020

3/28/2018<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #191).

Location: 297
BED1

4/16/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/25/2024<0.0020<0.0020<0.0020

BED1

10/18/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 10/18/2023 - 5yr.
PT

7/28/2023

0.0053<0.0020<0.0020BED1

7/28/2023<0.0020<0.0020<0.0020BED1

4/18/2023<0.0020<0.0020<0.0020BED1

1/16/2023<0.0020<0.0020<0.0020BED1

10/11/2022<0.0020<0.0020<0.0020BED1

7/19/2022<0.0020<0.0020<0.0020PT

7/19/2022

0.029<0.00200.0065BED1

4/18/2022<0.0020<0.0020<0.0020BED1

1/26/2022<0.0020<0.0020<0.0020BED1

11/1/2021<0.0020<0.0020<0.0020PT

8/19/2021

0.0040<0.0020<0.0020BED1

8/19/2021<0.0020<0.0020<0.0020BED1

4/13/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/21/2021<0.0020<0.0020<0.0020

BED1-DUP

1/21/2021<0.0020<0.0020<0.0020BED1

10/13/2020<0.0020<0.0020<0.0020BED1

8/10/2020<0.0020<0.0020<0.0020PT

8/10/2020

0.0038<0.0020<0.0020BED1

8/10/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Split sampling for method comparison.
BED1-DUP

8/10/2020<0.0020<0.0020<0.0020PT

8/10/2020

0.0031<0.0020<0.0020

Split sampling for method comparison.
BED1

6/8/2020<0.0020<0.0020<0.0020BED1

1/27/2020<0.0020<0.0020<0.0020BED1

10/11/2019<0.0020<0.0020<0.0020PT

7/22/2019

0.0038<0.0020<0.0020BED1

7/22/2019<0.0020<0.0020<0.0020BED1

4/16/2019<0.0020<0.0020<0.0020BED1

1/30/2019<0.0020<0.0020<0.0020BED1

11/7/2018<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/3/2018<0.0020<0.0020<0.0020PT

8/3/2018

0.0049<0.0020<0.0020

4/19/2018

0.039

0.00420.0077

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

NJDEP sampled, added their data to EIM, exceeds criteria, GAC installed by Chemours 05/23/2018.

Location: 298
4/22/2024<0.0020<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

3/25/2021<0.0020<0.0020<0.0020

4/23/2018<0.00200.002<0.0020

5/7/2021

0.0038<0.0020<0.0020

4/23/2018

0.003<0.0020<0.0020

6/12/2023<0.00200.0020<0.0020

3/26/2021<0.0020<0.0020<0.0020

4/23/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.00690.0021<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 299

Location: 300

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 301
BED1

4/16/2024<0.0020BED1

1/17/2024<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020

Carbon Changeout 01/17/2024 - 5yr.
BED1

10/20/2023<0.0020<0.0020<0.0020BED1

7/19/2023<0.0020<0.0020<0.0020PT

7/19/2023

0.033

0.00580.0049BED1

4/20/2023<0.0020<0.0020<0.0020BED1

1/25/2023<0.0020<0.0020<0.0020BED1

10/31/2022<0.0020<0.0020<0.0020BED1

8/18/2022<0.0020<0.0020<0.0020PT

8/18/2022

0.052

0.00410.0043

BED1

5/23/2022<0.0020<0.0020<0.0020BED1

2/22/2022<0.0020<0.0020<0.0020

BED1

11/29/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.059

0.0049 J

0.0035BED1

8/30/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/15/2021<0.0020<0.0020<0.0020

BED1

1/20/2021<0.0020<0.0020<0.0020BED1

10/7/2020<0.0020<0.0020<0.0020PT

7/23/2020

0.044

0.00370.0050BED1

7/23/2020<0.0020<0.0020<0.0020BED1

6/2/2020<0.0020<0.0020<0.0020BED1

1/16/2020<0.0020<0.0020<0.0020BED1

10/1/2019<0.0020<0.0020<0.0020PT

7/8/2019

0.046

0.00320.0029BED1

7/8/2019<0.0020<0.0020<0.0020BED1

4/3/2019<0.0020<0.0020<0.0020BED1

1/9/2019<0.0020<0.0020<0.0020

4/23/2018

0.051<0.00200.0038<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.051

0.034

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/17/2018.

Location: 302
BED1

8/20/2019<0.0020

Replacement well installed (Regulatory Location ID #416). Not qualified so GAC removed 12/05/2019.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
PT

Date

PFOA

PFOS

8/20/2019

0.034

0.0061PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.0028Replacement well installed (Regulatory Location ID #416). Not qualified so GAC removed 12/05/2019.
BED1

5/21/2019<0.0020<0.0020<0.0020BED1

2/15/2019<0.0020<0.0020<0.0020

BED1

11/27/2018<0.0020<0.0020<0.0020BED1

9/28/2018<0.00200.0034<0.0020PT

9/28/2018

0.033

0.00310.0022

4/25/2018

0.04

0.0032<0.0020<0.0040<0.020<0.0200.0025

0.002

0.035

0.02

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 06/28/2018.

Location: 303
PT

8/17/2023

0.023

0.00200.0054BED1

8/17/2023<0.0020<0.0020<0.0020

Home is going to be demolished. GAC removed 12/14/2023 at owner's request.
BED1

5/30/2023<0.0020<0.0020<0.0020BED1

3/14/2023<0.0020<0.0020<0.0020

BED2

11/14/2022<0.0020<0.0020<0.0020BED1

11/14/2022

0.0050<0.0020<0.0020PT

8/30/2022

0.023<0.00200.0068BED1

8/30/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/26/2022<0.0020<0.0020<0.0020BED1

3/3/2022<0.0020<0.0020<0.0020BED1

12/1/2021<0.0020<0.0020<0.0020PT

8/19/2021

0.027<0.00200.0042

BED1

8/19/2021<0.0020<0.0020<0.0020BED1

5/14/2021<0.0020<0.0020<0.0020BED1

2/5/2021<0.0020<0.0020<0.0020BED1

10/27/2020<0.0020<0.0020<0.0020BED1

8/26/2020<0.0020<0.0020<0.0020PT

8/26/2020

0.027

0.00230.0042

BED1

6/16/2020

0.0034<0.0020<0.0020BED1

2/10/2020<0.0020<0.0020<0.0020BED1

11/8/2019<0.0020<0.0020<0.0020BED1

8/26/2019<0.0020<0.0020<0.0020PT

8/26/2019

0.024<0.00200.0036

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/17/2019<0.0020<0.0020<0.0020PT

2/4/2019

0.018<0.00200.0036BED1

2/4/2019<0.0020<0.0020<0.0020BED1

11/7/2018<0.0020<0.0020<0.0020

4/25/2018

0.024

0.00350.0049NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.0027<0.00200.014

0.0088<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 09/05/2018.

Location: 304-DUP

6/14/2024

0.010<0.0020<0.0020

6/14/2024

0.011<0.0020<0.0020

5/25/2022

0.0081<0.0020<0.0020

4/26/2021

0.0088<0.0020<0.0020

4/30/2018

0.0057<0.0020<0.0020<0.020<0.020<0.0020<0.00200.00460.0026<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/13/2023<0.0020<0.0020<0.0020

2/28/2022<0.0020<0.0020<0.0020

Location: 305
4/30/2018

Location: 306

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

4/30/2018<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 307
POST

4/17/2024<0.0020<0.0020<0.0020PRE

4/17/2024<0.0020<0.0020<0.0020POST

4/25/2022<0.0020<0.0020<0.0020PRE

4/25/2022

0.00220.0046<0.0020

3/26/2021

0.0022<0.0020<0.0020

4/30/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0064<0.0020<0.0020<0.020<0.020<0.0020<0.00200.00530.0026<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 308
5/4/2018

Location: 309
BED1

11/13/2023

GAC removed 02/06/2024 at owner's request. Permanent bottled water.
PT

8/17/2023

0.060

0.0056

0.016

BED1

8/17/2023<0.0020<0.0020<0.0020

BED1-DUP

5/31/2023<0.0020<0.0020<0.0020BED1

5/31/2023<0.0020<0.0020<0.0020BED1

3/14/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/22/2022<0.0020<0.0020<0.0020PT

9/13/2022

0.068

0.0038

0.013

BED1

9/13/2022<0.0020<0.0020<0.0020BED1

5/25/2022<0.0020<0.0020<0.0020BED1

2/23/2022<0.0020<0.0020<0.0020BED1

11/30/2021<0.0020<0.0020<0.0020BED1

9/7/2021<0.0020<0.0020<0.0020PT

9/7/2021

0.066

0.00220.0066BED1

6/21/2021<0.0020<0.0020<0.0020BED1

2/25/2021<0.0020<0.0020<0.0020BED1

10/8/2020<0.0020<0.0020<0.0020PT

7/28/2020

0.069

0.00200.0071BED1

7/28/2020<0.0020<0.0020<0.0020BED1

6/5/2020<0.0020<0.0020<0.0020BED1

1/31/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/15/2019<0.0020<0.0020<0.0020PT

7/19/2019

0.057<0.00200.0032

BED1

7/19/2019<0.0020<0.0020<0.0020BED1

4/8/2019<0.0020<0.0020<0.0020

BED1

1/23/2019<0.0020<0.0020<0.0020PT

1/23/2019

0.066<0.00200.0030BED1

10/30/2018<0.0020<0.0020<0.0020

5/4/2018

0.069<0.00200.0031

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040<0.020<0.0200.00320.0024

0.052

0.03

<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 09/27/2018.

Location: 310
BED2

4/17/2024<0.0020<0.0020<0.0020BED1

4/17/2024

0.0043<0.0020<0.0020BED1

1/25/2024<0.0020<0.0020<0.0020

Carbon Changeout 01/25/2024 - 5yr.
BED1

10/4/2023<0.0020<0.0020<0.0020PT

7/21/2023

0.056

0.018

0.010

BED1

7/21/2023<0.0020<0.0020<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/26/2023<0.0020<0.0020<0.0020BED1

10/28/2022<0.0020<0.0020<0.0020PT

8/17/2022

0.059

0.022

0.011

BED1

8/17/2022<0.0020<0.0020<0.0020BED1

5/18/2022<0.0020<0.0020<0.0020BED1

2/7/2022<0.0020<0.0020<0.0020

BED1

10/21/2021<0.0020<0.0020<0.0020PT

10/21/2021

0.045

0.014

0.0085BED1

5/14/2021<0.0020<0.0020<0.0020BED1

2/16/2021<0.0020<0.0020<0.0020BED1

12/10/2020<0.0020<0.0020<0.0020BED1

9/14/2020<0.0020<0.0020<0.0020PT

9/14/2020

0.024

0.0071 J

0.0042

BED1-DUP

9/14/2020<0.0020<0.0020<0.0020BED1

6/29/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

BED1

3/4/2020<0.0020<0.0020<0.0020BED1

5/24/2019<0.0020<0.0020<0.0020BED1

3/28/2019<0.00200.0026<0.0020PT

3/28/2019

0.027

0.00890.0044

5/4/2018

0.039

0.01

0.0062<0.020<0.0200.00550.0057

0.022

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0061<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0048<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 09/04/2018.

Location: 311-DUP

7/8/2024

0.0045<0.0020<0.0020

6/1/2022

0.0052<0.0020<0.0020

6/1/2022

0.0053<0.0020<0.0020

4/19/2021

0.0039<0.0020<0.0020

5/9/2018

0.0021<0.0020<0.0020

5/9/2022<0.0020<0.0020<0.0020

3/26/2021<0.0020<0.0020<0.0020

5/14/2018<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 312

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 313
POST

7/11/2022<0.0020<0.0020<0.0020PRE

7/11/2022

0.0039<0.0020<0.0020

4/30/2021<0.0020<0.0020<0.0020

5/14/2018

0.0033<0.0020<0.0020

4/7/2021<0.0020<0.0020<0.0020

5/14/2018<0.0020<0.0020<0.0020

7/19/20187/19/2018<0.020<0.020<0.0020<0.00200.011

0.0049<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/12/2023

0.0039<0.0020<0.0020

6/12/2023

0.0037<0.0020<0.0020

4/26/2021

0.0022<0.0020<0.0020

Location: 314

Location: 315
6/11/2018

Location: 316-DUP

Location: 317-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

8/6/2018<0.0020<0.0020<0.0020

5/9/2022<0.0020<0.0020<0.0020

4/2/2021<0.0020<0.0020<0.0020

4/2/2021<0.0020<0.0020<0.0020

8/10/2018<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.00200.0029<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 318-DUP

Location: 319
PRE

7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020POST

7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

POST

5/23/2022<0.0020<0.0020<0.0020PRE

5/23/2022<0.0020<0.0020<0.0020

4/2/2021

0.0087<0.00200.0031

4/2/2021

0.0095<0.00200.0035

8/20/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PRE

Location: 320
BED1

4/19/2024<0.0020<0.0020<0.0020

BED1-DUP

1/16/2024<0.0020<0.0020<0.0020

Carbon Changeout 01/16/2024 - 5yr.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

1/16/2024<0.0020<0.0020 UJ <0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 01/16/2024 - 5yr.
BED1

10/12/2023<0.0020<0.0020<0.0020PT

7/17/2023

0.060

0.00390.0033

BED1

7/17/2023<0.0020<0.0020<0.0020BED1

4/13/2023<0.0020<0.0020<0.0020BED1

1/12/2023<0.0020<0.0020<0.0020BED1

10/5/2022<0.0020<0.0020<0.0020PT

7/11/2022

0.056

0.00310.0031BED1

7/11/2022<0.0020<0.0020<0.0020

BED1-DUP

4/12/2022<0.0020<0.0020<0.0020BED1

4/12/2022<0.0020<0.0020<0.0020

BED1-DUP

1/19/2022<0.0020<0.0020<0.0020

BED1

1/19/2022<0.0020<0.0020<0.0020BED1

10/8/2021<0.0020<0.0020<0.0020PT

7/14/2021

0.068

0.00400.0049Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/14/2021<0.0020<0.0020<0.0020BED1

4/1/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020BED1

10/1/2020<0.0020<0.0020<0.0020BED1

7/23/2020<0.0020<0.0020<0.0020PT

7/23/2020

0.057

0.00240.0026BED1

6/2/2020<0.0020<0.0020<0.0020BED1

1/16/2020<0.0020<0.0020<0.0020BED1

10/2/2019<0.0020<0.0020<0.0020PT

7/1/2019

0.062

0.00370.0040BED1

7/1/2019<0.0020<0.0020<0.0020BED1

4/2/2019<0.0020<0.0020<0.0020BED1

1/7/2019<0.0020<0.0020<0.0020

8/20/2018

0.075

0.003

0.0024NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.049

0.037

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/16/2018.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 394 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

6/27/2022<0.0020<0.0020<0.0020

5/10/2021<0.0020<0.0020<0.0020

8/21/2018<0.0020<0.0020<0.0020

5/9/2022<0.0020<0.0020<0.0020

9/11/2018<0.0020<0.0020<0.0020

6/27/2022<0.0020<0.0020<0.0020

5/3/2021<0.0020<0.0020<0.0020

9/12/2018<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 321<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 322

Location: 323

Location: 324
BED1

5/7/2024

Carbon Changeout 05/07/2024 - 5yr.
BED1

3/14/2024<0.0020<0.0020<0.0020

BED1

12/18/2023<0.0020<0.0020<0.0020BED1

8/23/2023<0.0020<0.0020<0.0020PT

8/23/2023

0.087

0.0057<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/2/2023<0.0020<0.0020<0.0020BED1

1/11/2023<0.0020<0.0020<0.0020BED1

10/10/2022<0.0020<0.0020<0.0020PT

7/14/2022

0.078

0.0046<0.0020BED1

7/14/2022<0.0020<0.0020<0.0020BED1

4/5/2022<0.0020<0.0020<0.0020BED1

1/5/2022<0.0020<0.0020<0.0020BED1

10/7/2021<0.0020<0.0020<0.0020BED1

7/13/2021<0.0020<0.0020<0.0020PT

7/13/2021

0.061

0.0031<0.0020BED1

4/1/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020BED1

10/5/2020<0.0020<0.0020<0.0020PT

7/28/2020

0.090

0.0026<0.0020

BED1-DUP

7/28/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 396 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED17/28/2020<0.0020<0.0020<0.0020BED1

6/2/2020<0.0020<0.0020<0.0020BED1

1/17/2020<0.0020<0.0020<0.0020BED1

10/1/2019<0.0020<0.0020<0.0020PT

7/8/2019

0.083<0.0020<0.0020BED1

7/8/2019<0.0020<0.0020<0.0020BED1

4/5/2019<0.0020<0.0020<0.0020BED1

1/9/2019<0.0020<0.0020<0.0020

9/12/2018

0.081<0.0020<0.0020<0.020<0.0200.081<0.0020<0.0020<0.0200.081<0.0020<0.0020

7/5/2022<0.0020<0.0020<0.0020

3/25/2021<0.0020<0.0020<0.0020

9/26/2018<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.0024

0.059

0.03

<0.0020<0.020<0.00200.0026

0.058

0.026

<0.020<0.020<0.00200.00290.056<0.020<0.020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.025<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 11/06/2018.

Location: 325
9/12/2018

Permanent bottled water.
-DUP

9/12/2018

Permanent bottled water.

Location: 326

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 327
BED1

5/2/2024<0.0020 UJ <0.0020 UJ <0.0020 UJ

Carbon Changeout 05/02/2024 - 5yr.
BED1

2/6/2024<0.0020<0.0020<0.0020

BED1

11/20/2023<0.0020<0.0020<0.0020BED1

8/21/2023<0.0020<0.0020<0.0020PT

8/21/2023

0.028<0.0020<0.0020BED1

5/31/2023<0.0020<0.0020<0.0020

BED1

11/17/2022<0.0020<0.0020<0.0020PT

7/21/2022

0.012

0.0022<0.0020

BED1

7/21/2022<0.0020<0.0020<0.0020BED1

5/10/2022<0.0020<0.0020<0.0020BED1

3/1/2022<0.0020<0.0020<0.0020BED1

12/9/2021<0.0020<0.0020<0.0020BED1

9/15/2021<0.0020<0.0020<0.0020PT

9/15/2021

0.012

0.0036<0.0020BED1

5/27/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 398 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/11/2021<0.0020<0.0020<0.0020BED1

11/2/2020<0.0020<0.0020<0.0020PT

8/31/2020

0.0061<0.0020<0.0020BED1

8/31/2020<0.0020<0.0020<0.0020BED1

6/30/2020<0.0020<0.0020<0.0020

BED1

2/19/2020<0.0020<0.0020<0.0020BED1

11/13/2019<0.0020<0.0020<0.0020BED1

9/10/2019<0.0020<0.0020<0.0020PT

9/10/2019

0.010

0.0020<0.0020BED1

5/15/2019<0.0020<0.0020<0.0020BED1

1/7/2019<0.0020<0.0020<0.0020

9/26/2018

0.015<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.00200.019

0.0088PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 12/18/2018.

Location: 328
BED1

4/2/2024<0.0020<0.0020<0.0020BED1

1/4/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/7/2023<0.0020<0.0020<0.0020PT

8/31/2023

0.027<0.00200.0094BED1

8/31/2023<0.0020<0.0020<0.0020BED1

5/1/2023<0.0020<0.0020<0.0020BED1

3/15/2023<0.0020<0.0020<0.0020

BED1

11/21/2022<0.0020<0.0020<0.0020PT

7/7/2022

0.031<0.00200.0061

BED1

7/7/2022<0.0020<0.0020<0.0020BED1

4/14/2022<0.0020<0.0020<0.0020BED1

1/26/2022<0.0020<0.0020<0.0020BED1

11/1/2021<0.0020<0.0020<0.0020BED1

8/18/2021<0.0020<0.0020<0.0020PT

8/18/2021

0.043

0.00200.0094BED1

6/4/2021<0.0020<0.0020<0.0020BED1

3/17/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 400 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

10/19/2020<0.0020<0.0020<0.0020PT

8/3/2020

0.026<0.0020.0046BED1

8/3/2020<0.002<0.002<0.002

BED1

6/3/2020<0.0020<0.0020<0.0020

BED1

1/23/2020<0.0020<0.0020<0.0020BED1

10/4/2019<0.0020<0.0020<0.0020-DUP

10/3/2018

0.046<0.00200.0047<0.020<0.020<0.00200.0049<0.020

0.015

0.055

<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.024

0.011

<0.0020<0.020<0.0020<0.0020

0.024

0.012

<0.020<0.00200.0074

0.54

0.14

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.047<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 08/08/2019.
10/3/2018

0.045

GAC installed 08/08/2019.

Location: 329
10/11/2018

0.31

Treatment incomplete/in progress - bottled water.

Location: 330
BED1

4/10/2024<0.0020<0.0020<0.0020BED1

1/3/2024<0.0020<0.0020<0.0020BED1

10/17/2023<0.0020<0.0020<0.0020PT

7/10/2023

0.39

0.016 J

0.063

BED1

7/10/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/3/2023<0.0020<0.0020<0.0020BED1

1/10/2023<0.0020<0.0020<0.0020BED1

10/24/2022<0.0020<0.0020<0.0020PT

10/24/2022

0.31

0.018 J

0.054

BED1

6/9/2022

0.0035<0.0020<0.0020BED2

6/9/2022<0.0020<0.0020<0.0020BED1

3/14/2022<0.0020<0.0020<0.0020BED1

12/6/2021<0.0020<0.0020 UJ <0.0020

BED1

8/4/2021<0.0020<0.0020<0.0020

BED1-DUP

8/4/2021<0.0020<0.0020<0.0020PT

8/4/2021

0.46

0.027

0.083

BED1

5/12/2021<0.0020<0.0020 UJ <0.0020

BED1

9/6/2019

0.0030<0.0020<0.0020PT

9/6/2019

0.50 J

0.024 J

0.091 J

BED1

6/25/2019

0.015<0.0020<0.0020

BED2

6/25/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 402 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

0.41

0.021

0.078

<0.020<0.020<0.0020<0.0020<0.0020<0.0205/23/2022

0.0037<0.0020<0.0020

4/19/2021

0.0082<0.0020<0.0020

11/7/2018<0.0020<0.0020<0.0020

10/11/2018

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.0089

0.65

0.18

0.057

<0.020<0.0020<0.00200.0039<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.020<0.020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 12/12/2018.

Location: 331
10/25/2018

Location: 332

Location: 333
PRE

7/19/2022<0.0020<0.0020<0.0020POST

7/19/2022<0.0020<0.0020<0.0020

4/30/2021<0.0020<0.0020<0.0020

4/30/2021<0.0020<0.0020<0.0020

11/15/2018<0.0020<0.0020<0.0020

2/27/2023<0.0020<0.0020<0.0020

4/21/2021<0.0020<0.0020<0.0020

11/27/2018<0.0020<0.0020<0.0020

PRE

Location: 334

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 403 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 335
PRE

6/3/2024<0.0020<0.0020<0.0020POST

6/3/2024<0.0020<0.0020<0.0020POST

5/25/2022<0.0020<0.0020<0.0020PRE

5/25/2022<0.0020<0.0020<0.0020

4/26/2021<0.0020 UJ <0.0020 UJ <0.0020 UJ

PRE

11/29/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

POST

11/29/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 336
POST

4/4/2022<0.0020<0.0020<0.0020PRE

4/4/2022<0.0020<0.0020<0.0020

12/3/2018<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 337
BED1

5/22/2024

Carbon Changeout 05/22/2024 - 5yr.
BED1

1/10/2024<0.0020<0.0020<0.0020BED1

10/12/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 404 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/24/2023

0.041

0.015

0.017

BED1

7/24/2023<0.0020<0.0020<0.0020BED1

4/26/2023<0.0020<0.0020<0.0020BED1

2/13/2023<0.0020<0.0020<0.0020

BED1

11/29/2022<0.0020<0.0020<0.0020PT

9/20/2022

0.033

0.013

0.013

BED1

9/20/2022<0.0020<0.0020<0.0020BED1

5/11/2022<0.0020<0.0020<0.0020BED1

2/9/2022<0.0020<0.0020<0.0020BED1

11/9/2021<0.0020<0.0020<0.0020

BED1-DUP

11/9/2021<0.0020<0.0020<0.0020BED1

8/30/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.048

0.020 J

0.024

BED1

5/11/2021<0.0020<0.0020<0.0020BED1

2/3/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 405 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

2/3/2021<0.0020<0.0020<0.0020BED1

10/22/2020<0.0020<0.0020<0.0020PT

8/19/2020

0.035

0.011

0.016

BED1

8/19/2020<0.0020<0.0020<0.0020BED1

6/11/2020<0.0020<0.0020<0.0020BED1

1/16/2020<0.0020<0.0020<0.0020BED1

10/1/2019<0.0020<0.0020<0.0020BED1

7/1/2019<0.0020<0.0020<0.0020PT

7/1/2019

0.037

0.0097

0.011

BED1

4/2/2019<0.0020<0.0020<0.0020

12/3/2018

0.037

0.00910.0089<0.020<0.0200.00930.0087<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.023

0.012

<0.0020<0.020<0.0020<0.0020

0.024

0.013

<0.020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 02/19/2019.
12/3/2018

0.039

GAC installed 02/19/2019.

Location: 338
5/10/2021<0.0020<0.0020<0.0020

12/4/2018<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 406 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA<0.0020<0.0020<0.0020<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 339
12/4/2018

Location: 340
POST

12/4/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

12/4/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/23/2022<0.0020<0.0020<0.0020

4/23/2021<0.0020<0.0020<0.0020

12/5/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/8/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/13/2022<0.0020<0.0020<0.0020

5/12/2021<0.0020<0.0020<0.0020

12/5/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 341<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 342

Location: 343
BED1

5/31/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 407 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/28/2024<0.0020<0.0020<0.0020

BED1

11/15/2023<0.0020<0.0020<0.0020BED1

8/29/2023<0.0020<0.0020<0.0020PT

8/29/2023

0.011<0.0020<0.0020BED1

5/18/2023<0.0020<0.0020<0.0020BED1

2/13/2023<0.0020<0.0020<0.0020BED1

10/31/2022<0.0020<0.0020<0.0020BED1

8/22/2022<0.0020<0.0020<0.0020PT

8/22/2022

0.012<0.0020<0.0020BED1

5/19/2022<0.0020<0.0020<0.0020BED1

2/17/2022<0.0020<0.0020<0.0020

BED1

10/21/2021<0.0020<0.0020<0.0020

5/3/2021

0.014<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 07/06/2021.
POST

12/5/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

12/5/2018

0.011<0.0020<0.0020<0.020<0.020<0.0020<0.00200.00810.0052<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 408 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 344
POST

2/27/2023<0.0020<0.0020<0.0020PRE

2/27/2023<0.0020<0.0020<0.0020

POST

1/31/2022<0.0020<0.0020<0.0020PRE

1/31/2022<0.0020<0.0020<0.0020POST

12/5/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

12/5/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.027

0.013

0.0096<0.020<0.0200.01

0.0077

0.019

0.01

<0.0020<0.0020<0.0020<0.0020<0.0020

7/8/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/1/2022<0.0020<0.0020<0.0020

4/26/2021<0.0020 UJ <0.0020 UJ <0.0020 UJ

12/6/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/13/2022

0.0027<0.0020<0.0020

5/3/2021

0.0050<0.0020<0.0020

Location: 345
12/5/2018

Declined treatment offer.

Location: 346<0.0020<0.0020<0.0020<0.0020

Location: 347

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

12/6/2018

0.012<0.0020<0.0020

3/27/2023<0.0020<0.0020<0.0020

6/20/2022<0.0020<0.0020<0.0020

6/20/2022<0.0020<0.0020<0.0020

12/6/2018<0.0020<0.0020<0.0020

7/19/2022

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.00200.022

0.0077<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/13/2021<0.0020<0.0020<0.0020

12/7/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/19/2022<0.0020<0.0020<0.0020

5/13/2021<0.0020<0.0020<0.0020

12/7/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 348-DUP

Location: 349
12/6/2018

Location: 350

Location: 351

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

0.021

0.049

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 352
12/7/2018<0.0020<0.020<0.020<0.00200.0041

0.041

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Barn well not a potable well, treatment not offered.

Location: 353
5/1/2023<0.0020<0.0020<0.0020

5/7/2021<0.0020<0.0020<0.0020

12/10/2018<0.0020<0.0020<0.0020

7/19/2022<0.0020<0.0020<0.0020

7/19/2022<0.0020<0.0020<0.0020

5/21/2021<0.0020<0.0020<0.0020

12/10/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 354-DUP

Location: 355
POST

7/15/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

7/15/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020POST

6/6/2022<0.0020<0.0020<0.0020PRE

6/6/2022<0.0020<0.0020<0.0020POST

4/26/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PRE

4/26/2021<0.0020<0.0020<0.0020PRE

12/10/2018<0.0020<0.0020<0.0020<0.020<0.020POST

12/10/2018<0.0020<0.0020<0.0020<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.00200.00340.0022

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 356
BED1

6/25/2024<0.0020<0.0020<0.0020

BED1

2/19/2024<0.0020<0.0020<0.0020

BED1

10/23/2023<0.0020<0.0020<0.0020BED1

7/18/2023<0.0020<0.0020<0.0020PT

7/18/2023

0.015<0.0020<0.0020BED1

4/17/2023<0.0020<0.0020<0.0020BED1

1/17/2023<0.0020<0.0020<0.0020

BED1

10/18/2022<0.0020<0.0020<0.0020

5/25/2022

0.014<0.0020<0.0020<0.0020<0.0020

GAC installed 08/16/2022.
-DUP

5/25/2022

0.014

GAC installed 08/16/2022.
4/21/2021

0.0053<0.0020<0.0020

12/11/2018

0.004<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 357
POST

7/28/2022<0.0020<0.0020<0.0020PRE

7/28/2022<0.0020<0.0020<0.0020

4/21/2021<0.0020<0.0020<0.0020

12/11/2018<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020

Location: 358
BED1

5/8/2024

Carbon Changeout 05/08/2024 - 5yr.
BED1

1/25/2024<0.0020<0.0020<0.0020

BED1

10/23/2023<0.0020<0.0020<0.0020PT

7/24/2023

0.031 J

0.0033 J

0.0029 J

BED1

7/24/2023<0.0020<0.0020<0.0020BED1

4/25/2023<0.0020<0.0020<0.0020BED1

2/2/2023<0.0020<0.0020<0.0020BED1

10/14/2022<0.0020<0.0020<0.0020PT

10/14/2022

0.037

0.00380.0042

BED1

5/25/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/1/2021<0.0020<0.0020<0.0020BED1

10/22/2020<0.0020<0.0020<0.0020PT

8/19/2020

0.029

0.00440.0026BED1

8/19/2020<0.0020<0.0020<0.0020BED1

6/12/2020<0.0020<0.0020<0.0020BED1

1/17/2020<0.0020<0.0020<0.0020BED1

10/3/2019<0.0020<0.0020<0.0020PT

7/8/2019

0.040

0.00330.0034BED1

7/8/2019<0.0020<0.0020<0.0020BED1

4/2/2019<0.0020<0.0020<0.0020

12/11/2018

0.018

0.0027<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.00200.018

0.0071PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 03/13/2019.

Location: 359
BED1

1/28/2021

0.010

GAC removed 11/30/2021 at owner's request. Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.
BED2

1/28/2021<0.0020<0.0020<0.0020

GAC removed 11/30/2021 at owner's request. Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.
BED2

10/15/2020<0.0020<0.0020<0.0020BED1

10/15/2020

0.019<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/12/2020

0.0032<0.0020<0.0020PT

8/12/2020

0.089<0.00200.0038BED1

6/4/2020

0.0068<0.0020<0.0020

BED1

1/23/2020

0.0049<0.0020<0.0020BED1

10/7/2019<0.0020<0.0020<0.0020BED1

7/2/2019<0.0020<0.0020<0.0020PT

7/2/2019

0.083<0.00200.0020BED1

4/2/2019<0.0020<0.0020<0.0020

12/11/2018

0.067<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020

0.071

0.042

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 03/29/2019.

Location: 360
9/26/2022<0.0020<0.0020<0.0020

5/25/2021<0.0020<0.0020<0.0020

12/13/2018<0.0020<0.0020<0.0020

Location: 361
BED1

6/20/2024<0.0020<0.0020<0.0020BED1

2/28/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/29/2023<0.0020<0.0020<0.0020PT

9/13/2023

0.046

0.047

0.039

BED1

9/13/2023<0.0020<0.0020<0.0020BED1

6/15/2023<0.0020<0.0020<0.0020

BED1

3/20/2023<0.0020<0.0020<0.0020BED1

11/8/2022<0.0020<0.0020<0.0020BED1

9/7/2022<0.0020<0.0020<0.0020PT

9/7/2022

0.047

0.035

0.035

BED1

6/14/2022<0.0020<0.0020<0.0020BED1

11/30/2021<0.0020<0.0020<0.0020PT

9/1/2021

0.10

0.037

0.044

BED1

9/1/2021<0.0020<0.0020<0.0020BED1

6/11/2021<0.0020<0.0020<0.0020BED1

2/1/2021<0.0020<0.0020<0.0020BED1

10/7/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

8/4/2020<0.002<0.002<0.002PT

8/4/2020

0.062 J

0.031 J

0.022 J

BED1

1/20/2020<0.0020<0.0020<0.0020BED1

10/7/2019<0.0020<0.0020<0.0020

12/13/2018

0.08

0.047

0.038

<0.020<0.020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.003

0.0025

0.044

0.025

0.0034<0.0020<0.0020<0.00200.0023<0.0020<0.020<0.020<0.0020<0.00200.0035

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0022<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 08/05/2019.

Location: 362
7/8/2024

0.0033<0.0020<0.0020

5/10/2021

0.0048<0.0020<0.0020

12/14/2018

0.00550.0022<0.0020

9/12/2022<0.0020<0.0020<0.0020

8/2/2021<0.0020<0.0020<0.0020

12/14/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

12/14/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 363-DUP

Location: 364
12/14/2018

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 417 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 365
POST

12/20/2018<0.0020<0.00200.0069<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.00200.002<0.0020<0.0020<0.0020

PRE

12/20/2018<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/23/2023<0.0020<0.0020<0.0020

3/23/2023<0.0020<0.0020<0.0020

3/28/2022<0.0020<0.0020<0.0020

1/3/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/8/2023<0.0020<0.0020<0.0020

4/23/2021<0.0020<0.0020<0.0020

4/23/2021<0.0020<0.0020<0.0020

1/7/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/8/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

4/11/2022<0.0020<0.0020 UJ <0.0020

1/9/2019<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 366-DUP

Location: 367-DUP

Location: 368<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 369
BED1

4/10/2024<0.0020<0.0020<0.0020BED1

1/24/2024<0.0020<0.0020<0.0020BED1

10/3/2023<0.0020<0.0020<0.0020PT

7/5/2023

0.00410.00470.0025BED1

7/5/2023<0.0020<0.0020<0.0020BED1

4/3/2023<0.0020<0.0020<0.0020BED1

1/4/2023<0.0020<0.0020<0.0020BED1

10/6/2022<0.0020<0.0020<0.0020PT

7/6/2022<0.0020<0.0020<0.0020BED1

7/6/2022<0.0020<0.0020<0.0020BED1

4/5/2022<0.0020<0.0020<0.0020BED1

1/3/2022<0.0020<0.0020<0.0020BED1

10/1/2021<0.0020<0.0020<0.0020

BED1-DUP

10/1/2021<0.0020<0.0020<0.0020PT

7/6/2021

0.0038 J

0.0026<0.0020 UJ

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 419 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

7/6/2021<0.0020<0.0020<0.0020BED1

4/5/2021<0.0020<0.0020<0.0020

BED1

1/21/2021<0.0020<0.0020<0.0020BED1

10/5/2020<0.0020<0.0020<0.0020PT

7/28/2020<0.0020<0.0020<0.0020BED1

7/28/2020<0.0020<0.0020<0.0020BED1

6/3/2020<0.0020<0.0020<0.0020

BED1

1/20/2020<0.0020<0.0020<0.0020BED1

10/1/2019<0.0020<0.0020<0.0020PT

7/1/2019<0.0020<0.0020<0.0020BED1

7/1/2019<0.0020<0.0020<0.0020

1/11/2019

0.06

0.028

0.018

<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.00620.0036

0.058

0.025

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/22/2019.

Location: 370

PRE

1/15/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

1/15/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 420 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

0.021

0.00210.0043

4/10/2023<0.0020<0.0020<0.0020

3/21/2022<0.0020<0.0020<0.0020

1/15/2019<0.0020<0.0020

1/15/2019<0.0020

12/20/2022

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 371
1/15/2019<0.020<0.020<0.0020<0.00200.011

0.0068<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

12/20/2022<0.0020<0.0020<0.0020

1/18/2019<0.00200.0044<0.0020<0.020<0.020<0.0020<0.00200.012<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/19/2023<0.0020<0.0020<0.0020

9/19/2023<0.0020<0.0020<0.0020

3/28/2022<0.0020<0.0020<0.0020

1/29/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Declined treatment offer.

Location: 372-DUP

Location: 373-DUP

Location: 374-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 421 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

7/11/2022<0.0020<0.0020<0.0020

5/13/2021<0.0020<0.0020<0.0020

2/1/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0202/4/2019<0.0020<0.0020<0.0020

2/4/2019<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 375

Location: 376
2/4/2019

Location: 377-DUP

Location: 378
BED1-DUP

4/30/2024

Carbon Changeout 04/30/2024 - 5yr.
BED1

4/30/2024<0.0020<0.0020<0.0020

Carbon Changeout 04/30/2024 - 5yr.
BED1-DUP

3/27/2024<0.0020<0.0020<0.0020BED1

3/27/2024<0.0020<0.0020<0.0020

BED1

11/29/2023<0.0020<0.0020<0.0020PT

9/6/2023

0.10

0.018

0.039

BED1

9/6/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 422 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

5/25/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

5/25/2023<0.0020<0.0020<0.0020BED1

2/16/2023<0.0020<0.0020<0.0020BED1

10/24/2022<0.0020<0.0020<0.0020PT

7/25/2022

0.064

0.011

0.037

BED1

7/25/2022<0.0020<0.0020<0.0020

BED1

4/20/2022<0.0020<0.0020<0.0020BED1

1/3/2022<0.0020<0.0020<0.0020BED1

10/4/2021<0.0020<0.0020<0.0020PT

7/7/2021

0.060

0.0083

0.033

BED1

7/7/2021<0.0020<0.0020<0.0020

BED1-DUP

4/7/2021<0.0020<0.0020<0.0020BED1

4/7/2021<0.0020<0.0020<0.0020BED1

1/12/2021<0.0020<0.0020<0.0020BED1

10/5/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 423 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/28/2020<0.0020<0.0020<0.0020PT

7/28/2020

0.046

0.0065

0.018

BED1

6/3/2020<0.0020<0.0020<0.0020BED1

2/11/2020<0.0020<0.0020<0.0020BED1

11/8/2019<0.0020<0.0020<0.0020PT

9/3/2019

0.081

0.016

0.044

BED1

9/3/2019<0.0020<0.0020<0.0020

2/7/2019

0.22

0.013

0.057

<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS

0.0085

PFHxS

PFHxA

PFHpA

0.0035

0.19

0.11

PFDA

0.0028PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 04/26/2019.

Location: 379
BED1

5/21/2024<0.0020

Carbon Changeout 05/21/2024 - 5yr.
BED1

1/18/2024<0.0020<0.0020<0.0020BED1

10/17/2023<0.0020<0.0020<0.0020BED1

8/1/2023<0.0020<0.0020<0.0020PT

8/1/2023<0.0020<0.0020<0.0020BED1

4/25/2023<0.0020<0.0020<0.0020BED1

1/31/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 424 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/24/2022<0.0020<0.0020<0.0020BED1

8/3/2022<0.0020<0.0020<0.0020PT

8/3/2022

0.0022<0.0020<0.0020BED1

4/19/2022<0.0020<0.0020<0.0020

BED1

1/19/2022<0.0020<0.0020<0.0020BED1

10/15/2021<0.0020<0.0020<0.0020

BED1

7/20/2021<0.0020<0.0020<0.0020PT

7/20/2021

0.0064<0.0020<0.0020BED1

4/23/2021<0.0020<0.0020<0.0020BED1

2/1/2021<0.0020<0.0020<0.0020

BED1

10/20/2020<0.0020<0.0020<0.0020BED1

8/19/2020<0.0020<0.0020<0.0020PT

8/19/2020

0.0099<0.0020<0.0020BED1

6/12/2020<0.0020<0.0020<0.0020BED1

3/4/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 425 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/3/2019

0.0026<0.0020<0.0020BED1

7/3/2019<0.0020<0.0020<0.0020

2/7/2019

0.014<0.00200.0031<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.00200.01

0.0065PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/01/2019.

Location: 380
BED1

4/23/2024<0.0020

Carbon Changeout 04/23/2024 - 5yr.
BED1

2/7/2024<0.0020<0.0020<0.0020BED1

11/8/2023<0.0020<0.0020<0.0020BED1

7/24/2023<0.0020<0.0020<0.0020PT

7/24/2023

0.036

0.00200.0021BED1

4/26/2023<0.0020<0.0020<0.0020BED1

2/13/2023<0.0020<0.0020<0.0020BED1

11/7/2022<0.0020<0.0020<0.0020PT

8/29/2022

0.045

0.0026<0.0020BED1

8/29/2022<0.0020<0.0020<0.0020BED1

5/11/2022<0.0020<0.0020<0.0020BED1

2/14/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 426 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/15/2021<0.0020<0.0020<0.0020BED1

9/2/2021<0.0020<0.0020<0.0020PT

9/2/2021

0.058

0.0033 J

0.0035

BED1

6/21/2021<0.0020<0.0020<0.0020BED1

3/17/2021<0.0020<0.0020<0.0020BED1

11/4/2020<0.0020<0.0020<0.0020PT

8/26/2020

0.057

0.00280.0021BED1

8/26/2020<0.0020<0.0020<0.0020BED1

6/10/2020<0.0020<0.0020<0.0020BED1

1/30/2020<0.0020<0.0020<0.0020BED1

10/16/2019<0.0020<0.0020<0.0020BED1

7/22/2019<0.0020<0.0020<0.0020PT

7/22/2019

0.062

0.00300.0033BED1

4/9/2019<0.0020<0.0020<0.0020PRE

2/7/2019

0.072

0.00290.0036

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.048

0.026

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 03/27/2019.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 427 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFHxS

PFHxA

PFHpA

2/7/2019

0.067

0.00290.0034<0.020<0.020<0.0020<0.0020

0.045

0.025

<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020

7/15/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

3/21/2022<0.0020<0.0020<0.0020

POST

3/21/2022<0.0020<0.0020<0.0020PRE

2/11/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020

POST

2/11/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020

7/5/2022<0.0020<0.0020<0.0020

4/30/2021<0.0020<0.0020<0.0020-DUP

4/30/2021<0.0020<0.0020<0.0020PRE

2/14/2019<0.0020<0.0020<0.0020<0.020<0.020POST

2/14/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020

POST

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 03/27/2019.

Location: 381
2/11/2019

Location: 382<0.0020<0.0020<0.0020<0.0020

Location: 383

Location: 384
BED1

6/5/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/19/2024<0.0020<0.0020<0.0020BED1

11/28/2023<0.0020<0.0020<0.0020

BED1-DUP

11/28/2023<0.0020<0.0020<0.0020PT

9/6/2023

0.046

0.00320.0062

BED1

9/6/2023<0.0020<0.0020<0.0020BED1

6/8/2023<0.0020<0.0020<0.0020BED1

3/8/2023<0.0020<0.0020<0.0020

BED1

12/22/2022<0.0020<0.0020<0.0020BED1

9/13/2022<0.0020<0.0020<0.0020PT

9/13/2022

0.047

0.00210.0058BED1

4/19/2022<0.0020<0.0020<0.0020

2/15/2019

0.061

0.004

0.005

NEtFOSAA NMeFOSAA<0.020<0.020PFBS

0.0033

PFHxS

PFHxA

PFHpA

<0.0020

0.039

0.022

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/06/2022.

Location: 385
POST

11/30/2022<0.0020<0.0020<0.0020PRE

11/30/2022<0.0020<0.0020<0.0020PRE

8/11/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
POST

Date

PFOA

PFOS

PFNA

8/11/2021<0.0020<0.0020<0.0020

2/15/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Replacement well. (Original well Regulatory Location ID #150).

Location: 386
9/12/2022<0.0020<0.0020<0.0020

8/4/2021<0.0020<0.0020<0.0020

2/26/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 387
2/26/2019

Location: 388
BED1

6/20/2024

Carbon Changeout 06/20/2024 - 5yr.
BED1

2/7/2024<0.0020<0.0020<0.0020BED1

11/1/2023<0.0020<0.0020<0.0020BED1

8/21/2023<0.0020<0.0020<0.0020PT

8/21/2023

0.047

0.00940.0074BED1

5/31/2023<0.0020<0.0020<0.0020BED1

3/8/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 430 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/21/2022<0.0020<0.0020<0.0020BED1

9/14/2022<0.0020<0.0020<0.0020PT

9/14/2022

0.037

0.023

0.0040BED1

6/15/2022<0.0020<0.0020<0.0020BED1

3/9/2022<0.0020<0.0020<0.0020BED1

11/11/2021<0.0020<0.0020<0.0020PT

7/21/2021

0.039

0.00530.0055

BED1

7/21/2021<0.0020<0.0020<0.0020BED1

4/22/2021<0.0020<0.0020<0.0020BED1

1/11/2021<0.0020<0.0020<0.0020PT

8/26/2020

0.062

0.035

0.0080BED1

8/26/2020<0.0020<0.0020<0.0020BED1

6/3/2020<0.0020<0.0020<0.0020

BED1

1/21/2020<0.0020<0.0020<0.0020BED1

10/2/2019<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 431 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/3/2019

0.056

0.011

0.0041

BED1

7/3/2019<0.0020<0.0020<0.0020

2/26/2019

0.073

0.013

0.0074NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.0200.00370.0036

0.043

0.023

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/08/2019.

Location: 389
5/2/2022<0.0020<0.0020<0.0020

3/6/2019<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 390
BED1

5/15/2024

Carbon Changeout 05/15/2024 - 5yr.
BED1

2/1/2024<0.0020<0.0020<0.0020BED1

11/6/2023<0.0020<0.0020<0.0020PT

7/18/2023

0.078<0.00200.0086BED1

7/18/2023<0.0020<0.0020<0.0020BED1

4/13/2023<0.0020<0.0020<0.0020BED1

1/9/2023<0.0020<0.0020<0.0020BED1

10/11/2022<0.0020<0.0020<0.0020

BED1

7/20/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 432 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/20/2022

0.078<0.00200.0074

BED1-DUP

7/20/2022<0.0020<0.0020<0.0020BED1

4/12/2022<0.0020<0.0020<0.0020

BED1

1/19/2022<0.0020<0.0020<0.0020

BED1

10/19/2021<0.0020<0.0020<0.0020BED1

8/2/2021<0.0020<0.0020<0.0020PT

8/2/2021

0.10<0.00200.0070BED1

5/5/2021<0.0020<0.0020<0.0020

BED1-DUP

5/5/2021<0.0020<0.0020<0.0020BED1

2/11/2021<0.0020<0.0020<0.0020BED1

11/9/2020<0.0020<0.0020<0.0020PT

9/9/2020

0.082<0.00200.0087BED1

9/9/2020<0.0020<0.0020<0.0020BED1

6/19/2020<0.0020<0.0020<0.0020BED1

2/26/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 433 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/20/2019<0.0020<0.0020<0.0020PT

9/19/2019

0.094<0.00200.0066BED1

9/19/2019<0.0020<0.0020<0.0020

3/6/2019

0.13

0.00230.017<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.072

0.031

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 04/23/2019.

Location: 391
BED1

5/16/2024<0.0020

Carbon Changeout 05/16/2024 - 5yr.
BED1

3/11/2024<0.0020<0.0020<0.0020BED1

12/5/2023<0.0020<0.0020<0.0020PT

9/13/2023

0.049

0.0058

0.013

BED1

9/13/2023<0.0020<0.0020<0.0020

BED1

6/20/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

3/16/2023<0.0020BED1

10/5/2022<0.0020 UJ <0.0020<0.0020 UJ

PT

7/6/2022

0.055

0.0045 J

0.012

BED1

7/6/2022<0.0020<0.0020<0.0020BED1

3/9/2022<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 434 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

11/16/2021<0.0020<0.0020<0.0020BED1

9/9/2021<0.0020<0.0020<0.0020PT

9/9/2021

0.070

0.0050

0.012

BED1

5/26/2021<0.0020<0.0020<0.0020

BED1

11/17/2020<0.0020<0.0020<0.0020BED1

9/22/2020<0.0020<0.0020<0.0020PT

9/22/2020

0.071

0.0059

0.014

BED1

6/30/2020<0.0020<0.0020<0.0020BED1

3/13/2020<0.0020<0.0020<0.0020PT

7/1/2019

0.10

0.00580.0073

BED1

7/1/2019<0.0020<0.0020<0.0020

3/8/2019

0.099

0.014

0.011

<0.020<0.020

0.02

0.022

<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.00430.0024

0.099

0.063

<0.00200.00440.0085

0.11

0.052

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 05/17/2019.

Location: 392
3/20/2019

0.1

Treatment incomplete/in progress - declined bottled water.

Location: 393
BED1

5/15/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/24/2024<0.0020<0.0020<0.0020BED1

10/16/2023<0.0020<0.0020<0.0020PT

7/31/2023

0.045<0.0020<0.0020BED1

7/31/2023<0.0020<0.0020<0.0020BED1

4/26/2023<0.0020<0.0020<0.0020BED1

1/30/2023<0.0020<0.0020<0.0020BED1

10/24/2022<0.0020<0.0020<0.0020BED1

8/15/2022<0.0020<0.0020<0.0020PT

8/15/2022

0.043<0.0020<0.0020BED1

5/11/2022<0.0020<0.0020<0.0020BED1

2/14/2022<0.0020<0.0020<0.0020

BED1

11/15/2021<0.0020<0.0020<0.0020BED1

9/1/2021<0.0020<0.0020<0.0020PT

9/1/2021

0.047<0.0020<0.0020BED1

6/14/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

3/17/2021<0.0020<0.0020<0.0020BED1

11/30/2020<0.0020<0.0020<0.0020BED1

9/14/2020<0.0020<0.0020<0.0020PT

9/14/2020

0.039<0.0020<0.0020BED1

6/24/2020<0.0020<0.0020<0.0020BED1

3/6/2020<0.0020<0.0020<0.0020BED1

12/12/2019<0.0020<0.0020<0.0020

4/16/2019

0.032<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0200.18<0.0020

0.016

0.04

<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.052

0.019

<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.13<0.020<0.020<0.0020<0.0020<0.020<0.020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.091<0.0020<0.0020<0.0020<0.0020<0.0020

0.05

0.027

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 06/20/2019.

Location: 394
4/17/2019

Location: 395
5/1/2019

Declined treatment offer.

Location: 396
5/9/2019

Treatment incomplete/in progress - bottled water.

Location: 397
5/9/2019<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 398
BED1

5/29/2024<0.0020<0.0020<0.0020

BED1

2/21/2024<0.0020<0.0020<0.0020BED1

12/6/2023<0.0020<0.0020<0.0020PT

9/11/2023

0.083

0.0024 J<0.0020BED1

9/11/2023<0.0020<0.0020<0.0020BED1

6/12/2023<0.0020<0.0020<0.0020

BED1

3/20/2023<0.0020<0.0020<0.0020BED1

10/31/2022<0.0020<0.0020<0.0020PT

8/25/2022

0.074<0.0020<0.0020BED1

8/25/2022<0.0020<0.0020<0.0020BED1

4/13/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

1/24/2022<0.0020<0.0020<0.0020BED1

10/25/2021<0.0020<0.0020<0.0020BED1

8/16/2021<0.0020<0.0020<0.0020PT

8/16/2021

0.084

0.0026<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

5/17/2021<0.0020<0.0020<0.0020

BED1-DUP

5/17/2021<0.0020<0.0020<0.0020BED1

2/24/2021<0.0020<0.0020<0.0020

BED1-DUP

10/5/2020<0.0020<0.0020<0.0020BED1

10/5/2020<0.0020<0.0020<0.0020PT

7/23/2020

0.11

0.0022<0.0020BED1

7/23/2020<0.0020<0.0020<0.0020BED1

6/2/2020<0.0020<0.0020<0.0020BED1

1/16/2020<0.0020<0.0020<0.0020BED1

10/2/2019

0.0028<0.0020<0.0020

5/16/2019

0.089<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.052

0.031

<0.0020<0.020<0.0020<0.0020

0.054

0.031

<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 07/29/2019.
-DUP

5/16/2019

0.087

GAC installed 07/29/2019.

Location: 399
7/15/2024<0.0020<0.0020<0.0020

6/13/2022<0.0020<0.0020<0.0020

4/27/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

5/16/2019<0.0020<0.0020PFNA<0.0020

NEtFOSAA NMeFOSAA<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0055<0.0029<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Replacement well. (Original well Regulatory Location ID #191).

Location: 400
6/19/2019<0.0020<0.0020<0.0020

6/2/2021<0.0020<0.0020<0.0020

7/22/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/22/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 401-DUP

Location: 402
7/22/2019

Location: 403
BED1

6/11/2024<0.0020<0.0020<0.0020BED1

2/6/2024<0.0020<0.0020<0.0020

BED1

11/15/2023<0.0020<0.0020<0.0020PT

8/2/2023

0.26

0.020

0.025

BED1

8/2/2023<0.0020<0.0020<0.0020

BED1-DUP

5/3/2023<0.0020<0.0020<0.0020BED1

5/3/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

BED1

1/9/2023<0.0020<0.0020<0.0020

BED1-DUP

10/10/2022<0.0020<0.0020<0.0020BED1

10/10/2022<0.0020<0.0020<0.0020BED1

8/2/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

PT

8/2/2022

0.26 J

BED1-DUP

8/2/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

4/25/2022<0.0020<0.0020<0.0020BED1

2/1/2022<0.0020<0.0020<0.0020BED1

11/4/2021<0.0020<0.0020<0.0020PT

8/17/2021

0.28

0.025

0.024

BED1

8/17/2021<0.0020<0.0020<0.0020BED1

5/19/2021<0.0020<0.0020<0.0020

BED1-DUP

2/25/2021<0.0020<0.0020<0.0020BED1

2/25/2021<0.0020<0.0020<0.0020BED1

10/13/2020<0.0020<0.0020<0.00200.022 JPFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.023 J

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 441 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/6/2020<0.0020<0.0020<0.0020PT

8/6/2020

0.33

0.082

0.035

BED1

6/9/2020<0.0020<0.0020<0.0020BED1

1/17/2020<0.0020<0.0020<0.0020

BED1-DUP

1/17/2020<0.0020<0.0020<0.0020

7/31/2019

0.24

0.021

0.018

NEtFOSAA NMeFOSAA<0.020<0.020PFBS

0.0031

PFHxS

PFHxA

PFHpA

0.00800.17

0.11 J

PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 10/25/2019.

Location: 404
BED1

4/24/2024<0.0020<0.0020<0.0020BED1

1/16/2024<0.0020<0.0020<0.0020BED1

10/9/2023<0.0020<0.0020<0.0020PT

7/26/2023

0.048

0.00290.0051BED1

7/26/2023<0.0020<0.0020<0.0020BED1

5/3/2023<0.0020<0.0020<0.0020BED1

2/15/2023<0.0020<0.0020<0.0020BED1

11/3/2022<0.0020<0.0020<0.0020BED1

8/29/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PT

8/29/2022

0.047

0.00310.0049BED1

5/17/2022<0.0020<0.0020<0.0020

BED1

2/21/2022<0.0020<0.0020<0.0020

BED1

11/22/2021<0.0020<0.0020<0.0020PT

9/16/2021

0.050

0.00210.0042

BED1

9/16/2021<0.0020<0.0020<0.0020

8/8/2019

0.059

0.00290.0042<0.020<0.020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.0023

0.044

0.029

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0040

GAC installed 06/03/2021.

Location: 405
7/8/2024<0.0020<0.0020<0.0020

6/13/2022<0.0020<0.0020<0.0020

5/10/2021<0.0020<0.0020<0.0020

8/20/2019<0.0020<0.0020<0.0020

7/5/2022<0.0020<0.0020<0.0020

5/25/2021<0.0020<0.0020<0.0020

8/26/2019<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 406

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

3/27/2023<0.0020<0.0020<0.0020

3/27/2023<0.0020<0.0020<0.0020

8/2/2021<0.0020<0.0020<0.0020

9/4/2019<0.0020<0.0020<0.0020

6/5/2023<0.0020<0.0020<0.0020

5/12/2021<0.0020<0.0020<0.0020

9/12/2019<0.0020<0.0020<0.0020

6/20/2022<0.0020<0.0020<0.0020

4/27/2021<0.0020<0.0020<0.0020

9/12/2019<0.0020<0.0020

7/15/2024<0.0020<0.0020

4/27/2021<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 407-DUP<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040

Location: 408

Location: 409

Location: 410<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

9/12/2019<0.0020<0.0020<0.0020

7/5/2022<0.0020<0.0020<0.0020

4/30/2021<0.0020<0.0020<0.0020

9/12/2019<0.0020<0.00200.00597/8/2024

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.025

0.0068<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

4/4/2022<0.0020<0.0020<0.0020

9/20/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/5/2023<0.0020<0.0020<0.0020

5/13/2021<0.0020<0.0020<0.0020

9/20/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.00200.0071<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 411

Location: 412
9/20/2019

Location: 413<0.0020<0.0020<0.0020<0.0020

Location: 414

Location: 415
5/16/2022

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

POST

9/20/2019<0.0020<0.0020<0.0020<0.020<0.020PRE

9/20/2019<0.0020<0.0020<0.0020<0.020

POST-DUP

9/20/2019<0.0020<0.0020<0.0020

3/20/2024<0.0020<0.0020<0.0020

5/8/2023<0.0020<0.0020<0.0020

9/20/2019<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 416

Replacement well. (Original well Regulatory Location ID #302).

Location: 417
4/10/2023<0.0020<0.0020<0.0020

3/14/2022<0.0020<0.0020<0.0020

10/1/2019<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 418
10/28/2019<0.0020<0.0020<0.0020<0.0020<0.0040 UJ<0.0020

Location: 419
BED2

4/9/2024<0.0020<0.0020<0.0020BED1

4/9/2024

0.019<0.0020<0.0020BED2

1/3/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/3/2024

0.012 J

<0.0020<0.0020BED2

10/2/2023<0.0020<0.0020<0.0020BED1

10/2/2023

0.0078<0.0020<0.0020BED1

7/10/2023

0.0080<0.0020<0.0020BED2

7/10/2023<0.0020<0.0020<0.0020PT

7/10/2023

0.033 J

<0.0020<0.0020BED1

4/5/2023

0.0075<0.0020<0.0020BED2

4/5/2023<0.0020<0.0020<0.0020BED1

1/4/2023

0.0050<0.0020<0.0020BED2

1/4/2023<0.0020<0.0020<0.0020BED1

10/4/2022<0.0020<0.0020<0.0020BED2

7/12/2022<0.0020<0.0020<0.0020PT

7/12/2022

0.033 J

<0.0020<0.0020BED1

7/12/2022

0.0027<0.0020<0.0020BED1

4/7/2022<0.0020<0.0020<0.0020BED1

1/6/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/20/2021<0.0020<0.0020<0.0020PT

8/3/2021

0.028<0.0020<0.0020BED1

8/3/2021<0.0020<0.0020<0.0020BED1

4/30/2021<0.0020<0.0020<0.0020BED1

2/4/2021<0.0020<0.0020<0.0020BED1

10/22/2020<0.0020<0.0020<0.0020

11/20/2019

0.029<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.020<0.020<0.0020<0.0020

0.036

0.023

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.026

0.022

0.011 J

<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

GAC installed 09/15/2020.

Location: 420
6/12/2023<0.0020<0.0020<0.0020

2/28/2020<0.0020<0.0020<0.0020

Old address updated to new address.

Location: 421
BED1

5/3/2024<0.0020<0.0020<0.0020BED1

2/7/2024<0.0020<0.0020<0.0020

BED1-DUP

11/17/2023<0.0020<0.0020<0.0020

BED1

11/17/2023<0.0020<0.0020<0.0020PT

9/6/2023

0.064<0.00200.0051

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

9/6/2023<0.0020<0.0020<0.0020

BED1

6/21/2023<0.0020<0.0020<0.0020BED1

3/13/2023<0.0020<0.0020<0.0020BED1

10/17/2022<0.0020<0.0020<0.0020BED1

8/8/2022<0.0020<0.0020<0.0020PT

8/8/2022

0.057<0.00200.0042

BED1

4/25/2022<0.0020<0.0020<0.0020BED1

2/7/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

11/22/2021<0.0020<0.0020<0.0020BED1

9/13/2021<0.0020<0.0020<0.0020PT

9/13/2021

0.061<0.00200.0033

2/28/2020

0.057<0.00200.0023<0.020<0.020<0.0020<0.0020<0.020<0.020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.048

0.023

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.030

0.014

<0.0040<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0036 J<0.0040<0.0020

GAC installed 06/15/2021.

Location: 422
3/2/2020<0.0020

Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.

Location: 423
BED1-DUP

5/3/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/3/2024<0.0020<0.0020<0.0020BED1

1/30/2024<0.0020<0.0020<0.0020

BED1

10/20/2023<0.0020<0.0020<0.0020

BED1-DUP

7/27/2023<0.0020<0.0020<0.0020BED1

7/27/2023<0.0020<0.0020<0.0020PT

7/27/2023

0.043

0.00540.0072

BED1

4/24/2023<0.0020<0.0020<0.0020BED1

2/2/2023<0.0020<0.0020<0.0020

BED1-DUP

2/2/2023<0.0020<0.0020<0.0020BED1

11/3/2022<0.0020<0.0020<0.0020BED1

8/25/2022<0.0020<0.0020<0.0020

BED1-DUP

8/25/2022<0.0020<0.0020<0.0020PT

8/25/2022

0.048

0.00490.0063

BED1

5/23/2022<0.0020<0.0020<0.0020

BED1

2/21/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 450 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/8/2021<0.0020<0.0020<0.0020BED1

8/23/2021<0.0020<0.0020<0.0020PT

8/23/2021

0.069

0.00710.0076BED1

4/15/2021<0.0020<0.0020<0.0020

BED1-DUP

4/15/2021<0.0020<0.0020<0.0020

BED1-DUP

1/20/2021<0.0020<0.0020<0.0020

BED1

1/20/2021<0.0020<0.0020<0.0020

BED1-DUP

10/6/2020<0.0020<0.0020<0.0020BED1

10/6/2020<0.0020<0.0020<0.0020

3/3/2020

0.031<0.00200.0047

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.020<0.020<0.0020<0.0020

0.024

0.015

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.022

0.014

<0.0040<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

GAC installed 09/10/2020.

Location: 424
5/8/2023<0.0020<0.0020<0.0020

3/3/2020<0.0020<0.0020<0.0020

6/19/2023<0.0020<0.0020<0.0020

6/19/2023<0.0020<0.0020<0.0020

Location: 425-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

3/3/2020<0.0020<0.0020<0.0020

6/5/2023<0.0020<0.0020<0.0020

8/4/2021<0.0020<0.0020<0.0020

3/3/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

Location: 426

Location: 427
BED1

5/15/2024<0.0020<0.0020<0.0020BED1

1/22/2024<0.0020<0.0020<0.0020

BED1

10/20/2023<0.0020<0.0020<0.0020PT

7/31/2023

0.026<0.00200.0028BED1

7/31/2023<0.0020<0.0020<0.0020BED1

5/3/2023<0.0020<0.0020<0.0020BED1

2/14/2023<0.0020<0.0020<0.0020

BED1

11/17/2022<0.0020<0.0020<0.0020PT

9/6/2022

0.041<0.00200.0049BED1

9/6/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

5/31/2022<0.0020<0.0020<0.0020BED1

3/1/2022<0.0020<0.0020<0.0020BED1

12/7/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.058

0.0067 J

0.0082

BED1

8/30/2021<0.0020<0.0020<0.0020BED1

6/17/2021<0.0020<0.0020<0.0020BED1

1/12/2021<0.0020<0.0020<0.0020

BED1-DUP

10/1/2020<0.0020<0.0020<0.0020BED1

10/1/2020<0.0020<0.0020<0.0020

3/5/2020

0.028<0.00200.0031

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.024

0.012

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020

0.021

PFBA

0.014

HFPO-DA

ADONA<0.0040<0.0020

GAC installed 08/27/2020.

Location: 428
BED1-DUP

4/2/2024<0.0020<0.0020<0.0020BED1

4/2/2024<0.0020<0.0020<0.0020

BED1-DUP

1/5/2024<0.0020<0.0020<0.0020BED1

1/5/2024<0.0020<0.0020<0.0020BED1

10/5/2023<0.0020<0.0020<0.0020

Carbon Changeout 10/05/2023 - results driven.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/5/2023

0.0049 J<0.0020<0.0020PT

7/5/2023

0.026<0.0020<0.0020BED2

7/5/2023

0.0034<0.0020<0.0020

BED1-DUP

7/5/2023<0.0020<0.0020<0.0020BED1

4/4/2023<0.0020<0.0020<0.0020

BED1

1/23/2023

0.0021<0.0020<0.0020

BED2

1/23/2023<0.0020<0.0020<0.0020BED1

11/2/2022<0.0020<0.0020<0.0020PT

8/17/2022

0.022<0.0020<0.0020

BED1-DUP

8/17/2022<0.0020<0.0020<0.0020BED1

8/17/2022<0.0020<0.0020<0.0020BED1

5/17/2022<0.0020<0.0020<0.0020BED1

2/23/2022<0.0020<0.0020<0.0020BED1

11/10/2021<0.0020<0.0020<0.0020

3/5/2020

0.022<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.020

0.010

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020

0.019

PFBA

0.011

HFPO-DA

ADONA<0.0040<0.0020

GAC installed 08/26/2021.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

0.029

<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020

0.020

0.011

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.016

0.0094<0.0040<0.0020

Location: 429
3/5/2020<0.0020<0.020<0.020<0.0020<0.0020

Home demolished for warehouse development. Well decommissioned according to NJ Data Miner. Permanent bottled water stopped.

Location: 430
3/5/2020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.

Location: 431
6/24/2021<0.0020<0.0020<0.0020

Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.
3/6/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020

Location: 432
6/24/2021

Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.
3/6/2020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

Location: 433
POST

3/28/2022<0.0020<0.0020<0.0020PRE

3/28/2022<0.0020<0.0020<0.0020POST

3/9/2020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020PRE

3/9/2020<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

Location: 434
BED1

11/1/2022<0.0020<0.0020<0.0020PT

8/24/2022

0.00750.00580.0032Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/24/2022<0.0020<0.0020<0.0020BED1

5/4/2022<0.0020<0.0020<0.0020BED1

3/22/2022<0.0020<0.0020<0.0020BED1

12/6/2021<0.0020<0.0020<0.0020BED1

7/6/2021<0.0020<0.0020<0.0020PT

7/6/2021

0.043

0.026

0.021

BED1

4/6/2021<0.0020<0.0020<0.0020BED1

1/12/2021<0.0020<0.0020<0.0020BED1

10/1/2020<0.0020<0.0020<0.0020

3/9/2020

0.025

0.016

0.0099NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.00200.015

0.0099PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020

0.017

PFBA

0.012

HFPO-DA

ADONA<0.0040<0.0020

GAC installed 09/01/2020.

Location: 435
BED1

3/18/2024<0.0020<0.0020<0.0020BED1

11/13/2023<0.0020<0.0020<0.0020PT

9/12/2023

0.059

0.0037 J

0.014

BED1

9/12/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

6/1/2023<0.0020<0.0020<0.0020

BED1

3/20/2023<0.0020<0.0020<0.0020

BED1

11/21/2022<0.0020<0.0020<0.0020BED1

9/27/2022<0.0020<0.0020<0.0020PT

9/27/2022

0.040<0.00200.0074

BED1

6/22/2022<0.0020<0.0020<0.0020BED1

1/6/2022<0.0020<0.0020<0.0020BED1

10/6/2021<0.0020<0.0020<0.0020PT

7/16/2021

0.050<0.00200.0077BED1

7/16/2021<0.0020<0.0020<0.0020

3/10/2020

0.069

0.00440.014

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.061

0.034

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020

0.051

PFBA

0.027

HFPO-DA

ADONA<0.0040<0.0020

GAC installed 06/30/2021.

Location: 436
BED1-DUP

6/21/2024<0.0020<0.0020<0.0020

BED1

6/21/2024<0.0020<0.0020<0.0020BED1

3/11/2024<0.0020<0.0020<0.0020BED1

12/11/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/19/2023

0.043<0.00200.0050BED1

9/19/2023<0.0020<0.0020<0.0020BED1

4/25/2023<0.0020<0.0020<0.0020BED1

1/31/2023<0.0020<0.0020<0.0020

BED1

10/19/2022<0.0020<0.0020<0.0020BED1

8/9/2022<0.0020<0.0020<0.0020PT

8/9/2022

0.038<0.00200.0020BED1

5/2/2022<0.0020<0.0020<0.0020BED1

12/8/2021<0.0020<0.0020<0.0020PT

8/30/2021

0.052<0.0020<0.0020BED1

8/30/2021<0.0020<0.0020<0.0020BED1

6/16/2021<0.0020<0.0020<0.0020BED1

3/5/2021<0.0020<0.0020<0.0020

3/10/2020

0.051<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.020<0.020PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.034

0.016

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020

0.021

PFBA

0.010

HFPO-DA

ADONA<0.0040<0.0020

GAC installed 11/06/2020.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

<0.0020<0.0020<0.0020

5/8/2023<0.0020<0.0020<0.0020-DUP

5/8/2023<0.0020<0.0020<0.0020-DUP

3/19/2020<0.0020<0.0020

3/19/2020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 437
3/10/2020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0020<0.0020<0.0040<0.0020<0.0020<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

Location: 438

Location: 439
BED1

4/4/2024<0.0020<0.0020<0.0020BED1

1/3/2024<0.0020<0.0020<0.0020BED1

10/3/2023<0.0020<0.0020<0.0020BED1

7/5/2023<0.0020<0.0020<0.0020PT

7/5/2023

0.033<0.0020

0.011

BED1

4/10/2023<0.0020<0.0020<0.0020

BED1

1/19/2023<0.0020<0.0020<0.0020BED1

10/13/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/25/2022<0.0020<0.0020<0.0020PT

7/25/2022

0.037<0.0020

0.012

BED1

4/18/2022<0.0020<0.0020<0.0020BED1

1/26/2022<0.0020<0.0020<0.0020BED1

10/29/2021<0.0020<0.0020<0.0020

BED1-DUP

8/18/2021<0.0020<0.0020<0.0020BED1

8/18/2021<0.0020<0.0020<0.0020PT

8/18/2021

0.041<0.0020

0.013

BED1

5/13/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020BED1

12/3/2020<0.0020<0.0020<0.0020

3/20/2020

0.039<0.00200.0080

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.020<0.020<0.0020<0.0020

0.033

0.021

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.028

0.019

<0.0040<0.0020<0.020<0.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0040<0.0020

GAC installed 09/08/2020.

Location: 440
5/10/2021<0.0020<0.0020<0.0020

3/20/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 441
BED1

4/5/2024<0.0020<0.0020<0.0020BED1

1/10/2024<0.0020<0.0020<0.0020BED1

10/11/2023<0.0020<0.0020<0.0020BED1

7/18/2023<0.0020<0.0020<0.0020PT

7/18/2023

0.098

0.14

0.013

BED1

4/18/2023<0.0020<0.0020<0.0020BED1

2/2/2023<0.0020<0.0020<0.0020BED1

10/25/2022<0.0020<0.0020<0.0020BED1

8/17/2022<0.0020<0.0020<0.0020PT

8/17/2022

0.11

0.19

0.012

BED1

5/4/2022<0.0020<0.0020<0.0020

BED1

1/20/2022<0.0020<0.0020<0.0020BED1

10/13/2021<0.0020<0.0020<0.0020

BED1

7/20/2021<0.0020<0.0020<0.0020PT

7/20/2021

0.12

0.16

0.013

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/15/2021<0.0020<0.0020<0.0020BED1

1/22/2021<0.0020<0.0020<0.0020

3/23/2020

0.11

0.11 J

0.0098NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.020<0.020<0.00200.0049

0.041

0.021

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.024

0.017

<0.0040<0.0020<0.020<0.020<0.0020<0.00200.0041<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0028<0.0020<0.0040<0.0020

GAC installed 12/10/2020.

Location: 442
5/12/2021

0.0037<0.0020<0.0020

3/23/2020

0.0032<0.0020<0.00200.052 J

<0.0020 UJ 0.0033 J

Location: 443
PT

7/25/2022

Home was demolished in 1Q24, GAC system was not recovered. Well decommissioned according to NJ Data Miner.
BED1

7/25/2022<0.0020<0.0020<0.0020

Home was demolished in 1Q24, GAC system was not recovered. Well decommissioned according to NJ Data Miner.
BED1

1/18/2022<0.0020<0.0020<0.0020BED1

10/13/2021<0.0020<0.0020<0.0020BED1

7/7/2021<0.0020<0.0020<0.0020PT

7/7/2021

0.049<0.0020<0.0020BED1

4/9/2021<0.0020<0.0020<0.0020

BED1-DUP

4/9/2021<0.0020<0.0020<0.0020

BED1

1/21/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

2/6/2020

0.0311<0.0014<0.00093

NEtFOSAA NMeFOSAA<0.0037<0.0037

PFBS
0.0011

PFHxS

PFHxA

PFHpA

PFDA

0.00220.05170.0287<0.00093

0.0301

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA<0.0019<0.0019<0.0019<0.00190.0415<0.0056<0.00093<0.0019<0.0019<0.0019<0.00190.0446<0.0056

ADONA

Veolia sampled, added their data to EIM with branched and linear summed. GAC installed by Chemours 11/13/2020.
-DUP

2/6/2020

0.0330<0.00140.0011<0.0037<0.00370.00110.00220.0545Veolia sampled, added their data to EIM with branched and linear summed. GAC installed by Chemours 11/13/2020.

Location: 444
2/6/2020<0.00093<0.0014<0.00093<0.0037<0.0037<0.00093<0.00093<0.00093<0.00093<0.00093<0.0019<0.0019<0.0019<0.0019<0.0019<0.0056<0.00093<0.00093<0.00093<0.00093<0.00093<0.0019<0.0019<0.0019<0.0019<0.0019<0.0056<0.00093<0.00093<0.00093<0.00093<0.00093<0.0019<0.0019<0.0019<0.0019<0.0019<0.0056<0.00093<0.00093

0.00360.0016<0.00093<0.0019<0.0019<0.0019<0.00190.0023<0.00560.00103<0.00100.04910.0332<0.0010<0.0020<0.0020<0.0020<0.00200.0420<0.0060<0.00200.0028<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Veolia sampled, added their data to EIM with branched and linear summed.

Location: 445
2/6/2020<0.00093<0.0014<0.00093<0.0037<0.0037

Veolia sampled, added their data to EIM with branched and linear summed.

Location: 446
4/3/2023<0.0020<0.0020<0.0020

2/6/2020<0.00093<0.0014<0.00093<0.0037<0.0037

Veolia sampled, added their data to EIM with branched and linear summed.

Location: 447
8/9/2021

0.0093<0.0020<0.0020

2/6/2020

0.0038<0.0014<0.00093<0.0037<0.0037

Veolia sampled, added their data to EIM with branched and linear summed.

Location: 448
11/27/2019

0.08900.00254

0.00740<0.0040<0.0040

Veolia sampled, added their data to EIM, exceeds criteria, Veolia responsible for treatment.

Location: 449
8/25/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0052<0.0020<0.0020<0.0020<0.0020

Location: 450
BED1

5/24/2022

Replacement well installed (Regulatory Location ID #681). Not qualified so GAC removed 10/26/2022.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/9/2022<0.0020<0.0020<0.0020BED1

11/8/2021<0.0020<0.0020<0.0020BED1

8/25/2021<0.0020<0.0020<0.0020PT

8/25/2021

0.034

0.00220.0033

BED1

6/16/2021<0.0020<0.0020<0.0020

BED1

1/21/2021<0.0020<0.0020<0.0020

8/25/2020

0.053

0.00590.0075NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.00200.00540.0035

0.042

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 10/28/2020.

Location: 451
3/25/2024<0.0020<0.0020<0.0020

3/21/2022<0.0020<0.0020<0.0020

8/25/2020<0.0020<0.0020<0.0020

3/27/2023<0.0020<0.0020<0.0020

5/3/2021<0.0020<0.0020<0.0020

8/27/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/27/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 452

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

4/8/2024<0.0020<0.0020<0.0020

4/25/2022<0.0020<0.0020<0.0020

9/1/2020<0.0020<0.0020<0.0020<0.0020<0.0020

9/1/2020<0.0020<0.0020<0.0020<0.0020

3/13/2023<0.0020<0.0020<0.0020

9/29/2021<0.0020<0.0020<0.0020

9/1/2020<0.0020<0.0020<0.0020

3/13/2023<0.0020<0.0020<0.0020

9/29/2021<0.0020<0.0020<0.0020

9/29/2021<0.0020<0.0020<0.0020

9/1/2020<0.0020<0.0020<0.0020

5/12/2021<0.0020<0.0020<0.0020

9/3/2020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.0048<0.0020<0.0020<0.0020<0.0020<0.00200.0048<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 453-DUP

Location: 454

Location: 455-DUP

Location: 456

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
-DUP

Date

PFOA

PFOS

PFNA

9/3/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA<0.0020<0.0020

Location: 457
BED1

6/18/2024<0.0020<0.0020<0.0020BED1

2/23/2024<0.0020<0.0020<0.0020

BED1

11/27/2023<0.0020<0.0020<0.0020PT

7/31/2023

0.033

0.0045<0.0020BED1

7/31/2023<0.0020<0.0020<0.0020BED1

5/15/2023<0.0020<0.0020<0.0020

BED1

2/20/2023<0.0020<0.0020<0.0020BED1

11/30/2022<0.0020<0.0020<0.0020PT

9/7/2022

0.031

0.0046<0.0020BED1

9/7/2022<0.0020<0.0020<0.0020BED1

5/24/2022<0.0020<0.0020<0.0020BED1

3/1/2022<0.0020<0.0020<0.0020

BED1

11/15/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/14/2021

0.025

0.0041<0.0020BED1

9/14/2021<0.0020<0.0020<0.0020

BED1-DUP

6/11/2021<0.0020<0.0020<0.0020BED1

6/11/2021<0.0020<0.0020<0.0020

9/3/2020

0.024

0.0042 J<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.00200.0041

0.026

0.011

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/05/2021.

Location: 458-DUP

2/27/2023<0.0020<0.0020<0.0020

2/27/2023<0.0020<0.0020<0.0020

4/30/2021<0.0020 UJ <0.0020 UJ <0.0020 UJ

9/3/2020<0.0020<0.0020<0.0020

6/5/2023<0.0020<0.0020<0.0020

5/7/2021<0.0020<0.0020<0.0020

9/8/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/8/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ <0.0020

Location: 459-DUP

Location: 460
4/11/2022

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

-DUP

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

9/15/2020<0.0020<0.0020<0.0020<0.0020<0.0020

9/15/2020<0.0020<0.0020<0.0020<0.0020

5/8/2023<0.0020<0.0020<0.0020

4/25/2022<0.0020<0.0020<0.0020

5/12/2021<0.0020<0.0020<0.0020

9/15/2020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 461

Location: 462
9/15/2020

Location: 463
POST

9/17/2020

0.0084<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.011

0.0047<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

POST-DUP

9/17/2020

0.0084<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.010

0.0044<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

9/17/2020

0.0083<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.010

0.0043<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 464
BED1

4/12/2024<0.0020<0.0020<0.0020

BED1

2/19/2024<0.0020<0.0020<0.0020BED1

11/7/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/3/2023

0.00890.00330.0068BED1

8/3/2023<0.0020<0.0020<0.0020BED1

4/6/2023<0.0020<0.0020<0.0020BED1

2/22/2023<0.0020<0.0020<0.0020BED1

10/12/2022<0.0020<0.0020<0.0020BED1

9/19/2022<0.0020<0.0020<0.0020PT

9/19/2022

0.011

0.00410.0087BED1

5/10/2022<0.0020<0.0020<0.0020BED1

2/14/2022<0.0020<0.0020<0.0020

BED1

11/22/2021<0.0020<0.0020<0.0020BED1

8/31/2021<0.0020<0.0020<0.0020PT

8/31/2021

0.013

0.0057

0.012

BED1

6/4/2021<0.0020<0.0020<0.0020BED1

3/10/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/19/2021 - Fe.
BED1

11/30/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

9/16/2020<0.0020<0.0020<0.0020PT

9/16/2020

0.016

0.00580.014

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 12/07/2016.

Location: 465
BED1

5/10/2024<0.0020<0.0020<0.0020BED1

2/6/2024<0.0020<0.0020<0.0020BED1

10/17/2023<0.0020<0.0020<0.0020

Carbon Changeout 10/17/2023 - results driven.
PT

8/30/2023

0.069 J

0.0082 J

0.0083 J

BED2

8/30/2023

0.0027<0.0020<0.0020BED1

8/30/2023

0.031 J

<0.0020 UJ <0.0020 UJ

BED2

4/5/2023<0.0020<0.0020<0.0020BED1

4/5/2023

0.022<0.0020<0.0020BED1

1/4/2023

0.017<0.0020<0.0020BED2

1/4/2023<0.0020<0.0020<0.0020BED1

10/5/2022

0.013<0.0020<0.0020BED2

10/5/2022<0.0020<0.0020<0.0020BED1

7/12/2022

0.0064<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED2

7/12/2022<0.0020<0.0020<0.0020PT

7/12/2022

0.057 J

0.0068 J

0.0071 J

BED1

4/13/2022

0.024

0.0022<0.0020BED2

4/13/2022<0.0020<0.0020<0.0020

BED2

1/25/2022<0.0020<0.0020<0.0020BED1

1/25/2022

0.021<0.0020<0.0020BED1

11/11/2021

0.0032<0.0020<0.0020

BED2

11/11/2021<0.0020<0.0020<0.0020BED1

7/23/2021<0.0020<0.0020<0.0020PT

7/23/2021

0.028

0.00280.0022

BED1-DUP

7/23/2021<0.0020<0.0020<0.0020BED1

4/23/2021<0.0020<0.0020<0.0020BED1

11/11/2020<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 10/29/2020 - results driven.
PT

9/14/2020

0.056 J

0.0073 J

0.0059 J

GAC installed by NJDEP 11/29/2017.
BED2

9/14/2020

0.012 J

<0.0020 UJ <0.0020 UJ

BED1

9/14/2020

0.040 J

0.0047 J

0.0037 J

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 466
BED1

2/13/2023<0.0020

Replacement well installed (Regulatory Location ID #703). Not qualified so Chemours OM&M discontinued and GAC ownership transferred to the homeowner per homeowner request. Well decommissioned
BED1

11/17/2022<0.0020<0.0020<0.0020

Carbon Changeout 11/17/2022 - 5yr.
BED1

9/13/2022<0.0020<0.0020<0.0020PT

9/13/2022

0.022<0.0020<0.0020BED1

6/15/2022<0.0020<0.0020<0.0020

BED1-DUP

6/15/2022<0.0020<0.0020<0.0020BED1

3/14/2022<0.0020<0.0020<0.0020

BED1-DUP

3/14/2022<0.0020<0.0020<0.0020

BED1

11/29/2021<0.0020<0.0020<0.0020BED1

9/15/2021<0.0020<0.0020<0.0020PT

9/15/2021

0.0074<0.0020<0.0020BED1

5/26/2021<0.0020<0.0020<0.0020BED1

2/25/2021<0.0020<0.0020<0.0020PT

9/28/2020

0.013<0.0020<0.0020

GAC installed by NJDEP 12/06/2017.
BED1

9/28/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 467
BED1

4/5/2024<0.0020<0.0020<0.0020BED1

10/3/2023<0.0020<0.0020<0.0020PT

7/5/2023

0.033<0.00200.0024BED1

7/5/2023<0.0020<0.0020<0.0020BED1

4/3/2023<0.0020<0.0020<0.0020

Carbon Changeout 03/02/2023 - 5yr.
BED1

1/3/2023<0.0020<0.0020<0.0020BED1

10/3/2022<0.0020<0.0020<0.0020PT

7/11/2022

0.037<0.00200.0024

BED1

7/11/2022<0.0020<0.0020<0.0020BED1

6/2/2022<0.0020<0.0020<0.0020BED1

3/9/2022<0.0020<0.0020<0.0020PT

11/17/2021

0.031<0.00200.0020BED1

11/17/2021<0.0020<0.0020<0.0020BED1

6/28/2021<0.0020<0.0020<0.0020BED1

3/9/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/8/2020<0.0020<0.0020<0.0020PT

9/29/2020

0.042<0.00200.0024NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 11/30/2017.
BED1

9/29/2020<0.0020<0.0020<0.0020

Location: 468
BED1

4/5/2024<0.0020<0.0020<0.0020

BED1-DUP

4/5/2024<0.0020<0.0020<0.0020

BED1-DUP

1/16/2024<0.0020<0.0020<0.0020BED1

1/16/2024<0.0020<0.0020<0.0020BED1

10/10/2023<0.0020<0.0020<0.0020PT

7/17/2023

0.020<0.00200.0038

BED1-DUP

7/17/2023<0.0020<0.0020<0.0020BED1

7/17/2023<0.0020<0.0020<0.0020BED1

4/4/2023<0.0020<0.0020<0.0020

BED1-DUP

1/5/2023<0.0020<0.0020<0.0020BED1

1/5/2023<0.0020<0.0020<0.0020BED1

10/7/2022<0.0020<0.0020<0.0020

Carbon Changeout 08/11/2022 - 5yr.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/13/2022

0.022<0.00200.0042

BED1

7/13/2022<0.0020<0.0020<0.0020BED1

4/13/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

1/20/2022<0.0020<0.0020<0.0020

BED1

10/18/2021<0.0020<0.0020<0.0020PT

8/2/2021

0.028<0.00200.0050

BED1-DUP

8/2/2021<0.0020<0.0020<0.0020BED1

8/2/2021<0.0020<0.0020<0.0020BED1

5/10/2021<0.0020<0.0020<0.0020BED1

2/11/2021<0.0020<0.0020<0.0020BED1

11/11/2020<0.0020<0.0020<0.0020PT

9/14/2020

0.023<0.00200.0043NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 12/11/2017.
BED1

9/14/2020<0.0020<0.0020<0.0020

Location: 469
BED1

4/17/2024<0.0020<0.0020<0.0020

BED1

1/23/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/18/2023<0.0020<0.0020<0.0020PT

7/28/2023

0.044

0.00200.0098BED1

7/28/2023<0.0020<0.0020<0.0020BED1

5/2/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 05/02/2023 - 5yr.
BED2

1/24/2023<0.0020<0.0020<0.0020BED1

1/24/2023

0.011<0.0020<0.0020

BED2

12/22/2022<0.0020<0.0020<0.0020

BED1

12/22/2022

0.0089<0.0020<0.0020PT

7/13/2022

0.050<0.00200.0090BED1

7/13/2022

0.0079<0.0020<0.0020BED2

7/13/2022<0.0020<0.0020<0.0020BED1

5/25/2022

0.0072<0.0020<0.0020

BED2

5/25/2022<0.0020<0.0020<0.0020BED1

3/2/2022

0.0075<0.0020<0.0020BED2

3/2/2022<0.0020<0.0020<0.0020

BED1-DUP

11/5/2021

0.0060<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 476 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED2

11/5/2021<0.0020<0.0020<0.0020BED1

11/5/2021

0.0047<0.0020<0.0020PT

8/23/2021

0.058<0.0020

0.011

BED2

8/23/2021<0.0020<0.0020<0.0020BED1

8/23/2021

0.0044<0.0020<0.0020

BED2

5/19/2021<0.0020<0.0020<0.0020BED1

5/19/2021

0.0045<0.0020<0.0020

BED1-DUP

2/16/2021

0.0023<0.0020<0.0020BED1

2/16/2021

0.0032<0.0020<0.0020

BED2

2/16/2021<0.0020<0.0020<0.0020

BED1-DUP

11/11/2020

0.0063 J<0.0020<0.0020BED1

11/11/2020

0.0029 J<0.0020<0.0020PT

9/16/2020

0.051<0.00200.0083NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 04/05/2018.
BED1-DUP

9/16/2020

0.0021<0.0020<0.0020BED1

9/16/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 470
BED1

6/21/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 477 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/5/2024<0.0020<0.0020<0.0020BED1

11/28/2023<0.0020<0.0020<0.0020PT

8/15/2023

0.031

0.00200.0060BED1

8/15/2023<0.0020<0.0020<0.0020BED1

4/25/2023<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/07/2023 - 5yr.
BED1

10/21/2022<0.0020<0.0020<0.0020PT

7/25/2022

0.042<0.00200.0058BED1

7/25/2022<0.0020<0.0020<0.0020BED1

5/16/2022<0.0020<0.0020<0.0020BED2

5/16/2022<0.0020<0.0020<0.0020

BED1-DUP

5/16/2022

0.0023<0.0020<0.0020

BED1-DUP

2/15/2022

0.0033<0.0020<0.0020BED1

2/15/2022

0.0022<0.0020<0.0020

BED2

2/15/2022<0.0020<0.0020<0.0020

BED1

11/16/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 478 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

8/30/2021

0.053<0.00200.0045BED1

8/30/2021<0.0020<0.0020<0.0020BED1

5/17/2021<0.0020<0.0020<0.0020BED1

2/15/2021<0.0020<0.0020<0.0020BED1

11/11/2020<0.0020<0.0020<0.0020BED1

9/15/2020<0.0020<0.0020<0.0020PT

9/15/2020

0.049<0.00200.0024NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 03/27/2018.

Location: 471
BED1

7/11/2022<0.0020<0.0020<0.0020

GAC removed 01/26/2023 at owner's request. Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.
PT

7/11/2022

0.012

0.00290.0096

GAC removed 01/26/2023 at owner's request. Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.
BED1

5/23/2022<0.0020<0.0020<0.0020BED1

2/28/2022<0.0020<0.0020<0.0020

BED1

11/22/2021<0.0020<0.0020<0.0020

Carbon Changeout 12/22/2021 - 5yr.
BED1

9/9/2021<0.0020<0.0020<0.0020PT

9/9/2021

0.019

0.0039

0.015

BED1

6/4/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 479 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/10/2021<0.0020<0.0020<0.0020

BED1

11/16/2020<0.0020<0.0020<0.0020BED1

9/21/2020<0.0020<0.0020<0.0020PT

9/21/2020

0.019

0.00540.016

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 10/03/2016.

Location: 472
BED1

6/14/2024<0.0020<0.0020<0.0020

BED1

2/19/2024<0.0020<0.0020<0.0020BED1

11/28/2023<0.0020<0.0020<0.0020PT

7/26/2023

0.014

0.00380.0077BED1

7/26/2023<0.0020<0.0020<0.0020BED1

4/18/2023<0.0020<0.0020<0.0020BED1

1/24/2023<0.0020<0.0020<0.0020

Carbon Changeout 01/24/2023 - 5yr.
BED2

10/4/2022<0.0020<0.0020<0.0020BED1

10/4/2022

0.0032<0.0020<0.0020BED1

7/7/2022

0.0032<0.0020<0.0020PT

7/7/2022

0.019

0.0035 J

0.0076

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 480 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED2

7/7/2022<0.0020<0.0020<0.0020BED1

4/12/2022

0.0038<0.0020<0.0020BED2

4/12/2022<0.0020<0.0020<0.0020BED1

1/18/2022

0.0057<0.0020<0.0020

BED2

1/18/2022<0.0020<0.0020<0.0020BED1

10/11/2021

0.0027<0.0020<0.0020

BED2

10/11/2021<0.0020<0.0020<0.0020PT

7/21/2021

0.019

0.00340.0088BED2

7/21/2021<0.0020<0.0020<0.0020

BED1

7/21/2021

0.0071<0.00200.0022

BED1

4/22/2021<0.0020<0.0020<0.0020

BED1-DUP

2/1/2021

0.0049<0.0020<0.0020BED1

2/1/2021

0.0050<0.0020<0.0020BED2

2/1/2021<0.0020<0.0020<0.0020

BED1

10/20/2020

0.0038 J<0.0020<0.0020PT

10/20/2020

0.036 J

0.0042 J

0.011

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 01/24/2018.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 481 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 473
BED2

5/12/2022<0.0020

GAC removed 12/06/2022 at owner's request. Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.
BED1

5/12/2022

0.0026<0.0020<0.0020

GAC removed 12/06/2022 at owner's request. Home demolished for warehouse development. Well decommissioned according to NJ Data Miner.
BED1

2/14/2022<0.0020<0.0020<0.0020BED1

11/9/2021<0.0020<0.0020<0.0020BED1

8/23/2021

0.0026<0.0020<0.0020PT

8/23/2021

0.040

0.0058

0.016

BED2

8/23/2021<0.0020<0.0020<0.0020BED1

6/1/2021<0.0020<0.0020<0.0020BED1

2/12/2021

0.0024<0.0020<0.0020

BED2

2/12/2021<0.0020<0.0020<0.0020

BED1-DUP

11/30/2020

0.0031<0.0020<0.0020BED1

11/30/2020

0.0027<0.0020<0.0020BED1

9/29/2020<0.0020<0.0020<0.0020PT

9/29/2020

0.058

0.00450.0076GAC installed by NJDEP 04/18/2018.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 482 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 474
BED2

6/5/2024<0.0020<0.0020<0.0020BED1

6/5/2024

0.041<0.0020

0.017

BED2

2/6/2024<0.0020<0.0020<0.0020BED1

2/6/2024

0.040<0.0020

0.016

BED1

11/9/2023

0.043<0.0020

0.015

BED2

11/9/2023<0.0020<0.0020<0.0020BED1

7/25/2023

0.038<0.0020

0.011

PT

7/25/2023

0.040

0.0028

0.024

BED2

7/25/2023<0.0020<0.0020<0.0020

BED2

4/19/2023<0.0020<0.0020<0.0020BED1

4/19/2023

0.038<0.0020

0.016

BED2

1/10/2023<0.0020<0.0020<0.0020BED1

1/10/2023

0.033<0.0020

0.011

BED2

10/5/2022<0.0020<0.0020<0.0020BED1

10/5/2022

0.031<0.00200.0095

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 483 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED2

7/5/2022<0.0020<0.0020<0.0020PT

7/5/2022

0.053

0.0029

0.028

BED1

7/5/2022

0.045<0.0020

0.018

BED1

5/11/2022

0.037<0.0020

0.011

BED2

5/11/2022<0.0020<0.0020<0.0020

BED2

2/14/2022<0.0020<0.0020<0.0020BED1

2/14/2022

0.030<0.0020

0.010

BED2

11/15/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 10/19/2021 - 5yr.
BED1

11/15/2021

0.052<0.0020

0.018

Carbon Changeout 10/19/2021 - 5yr.
PT

9/7/2021

0.061

0.0028

0.028

BED2

9/7/2021<0.0020<0.0020<0.0020BED1

9/7/2021

0.034<0.00200.0093

BED2

5/24/2021<0.0020<0.0020<0.0020BED1

5/24/2021

0.013<0.00200.0035

BED1

2/26/2021

0.015<0.00200.0033

BED2

2/26/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 484 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/7/2020

0.011<0.00200.0031PT

9/30/2020

0.070

0.00350.027

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 04/15/2016.
BED1-DUP

9/30/2020

0.010 J

<0.0020<0.0020BED1

9/30/2020

0.0059 J<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 475
BED1

3/12/2024

Replacement well installed (Regulatory Location ID #731). Qualified for treatment so GAC System transferred to replacement well.
BED1

12/12/2023<0.0020<0.0020<0.0020BED1

7/25/2023<0.0020<0.0020<0.0020PT

7/25/2023

0.031

0.0031

0.020

BED1

3/9/2023<0.0020<0.0020<0.0020BED1

10/31/2022<0.0020<0.0020<0.0020BED1

8/11/2022<0.0020<0.0020<0.0020PT

8/11/2022

0.049

0.0040

0.029

BED1

6/22/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

3/9/2022<0.0020<0.0020<0.0020BED1

12/7/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
PT

Date

PFOA

PFOS

9/14/2021

0.054

0.0057PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.045

Carbon Changeout 09/14/2021 - 5yr.
BED1

9/14/2021<0.0020<0.0020<0.0020

Carbon Changeout 09/14/2021 - 5yr.
BED1

6/9/2021<0.0020<0.0020<0.0020BED1

3/23/2021<0.0020<0.0020<0.0020

BED1

11/19/2020

0.0020<0.0020<0.0020PT

11/19/2020

0.064

0.00450.032

GAC installed by NJDEP 11/09/2015.

Location: 476
POST

9/22/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

9/22/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/15/2023<0.0020<0.0020<0.0020

5/15/2023<0.0020<0.0020<0.0020

9/22/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/22/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/20/2024<0.0020<0.0020<0.0020

1/31/2022<0.0020<0.0020<0.0020

Location: 477

-DUP

-DUP

Location: 478-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

1/31/2022<0.0020<0.0020<0.0020

9/22/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.057

0.036

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 479
9/22/2020

Location: 480
BED1

12/20/2022<0.0020<0.0020<0.0020PT

8/24/2022

0.058

0.00290.0057BED1

8/24/2022<0.0020<0.0020<0.0020BED1

5/18/2022<0.0020<0.0020<0.0020BED1

2/23/2022<0.0020<0.0020<0.0020BED1

11/30/2021<0.0020<0.0020<0.0020PT

9/1/2021

0.073

0.0033 J

0.0067BED1

9/1/2021<0.0020<0.0020<0.0020BED1

5/24/2021<0.0020<0.0020<0.0020BED1

3/5/2021<0.0020<0.0020<0.0020

9/22/2020

0.066

0.00430.0055GAC installed 11/20/2020.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

0.046

0.0044PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.0020

0.034

0.024

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 481
9/22/2020

0.0065<0.0020<0.0020<0.0020<0.0020

Home demolished for warehouse development. Well decommissioned according to NJ Data Miner. Permanent bottled water stopped.

Location: 482-DUP

8/11/2021<0.0020<0.0020<0.0020

10/1/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

10/1/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

10/5/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0041<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0026<0.0020

10/5/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0039<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0025<0.0020

Location: 483-DUP

Location: 484
BED1

5/22/2024<0.0020<0.0020<0.0020BED1

2/23/2024<0.0020<0.0020<0.0020

BED1-DUP

11/29/2023<0.0020<0.0020<0.0020

BED1

11/29/2023<0.0020<0.0020<0.0020BED1

8/22/2023<0.0020<0.0020<0.0020PT

8/22/2023

0.059

0.025

0.017

BED1

5/17/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/2/2023<0.0020<0.0020<0.0020

BED1

12/20/2022<0.0020<0.0020<0.0020BED1

7/6/2022<0.0020<0.0020<0.0020PT

7/6/2022

0.048

0.019 J

0.014

BED1

5/25/2022<0.0020<0.0020<0.0020BED1

2/24/2022<0.0020<0.0020<0.0020

BED1

11/23/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 11/23/2021 - results driven.
BED2

9/3/2021

0.0078<0.0020<0.0020

BED1-DUP

9/3/2021

0.024

0.00480.0043PT

9/3/2021

0.048

0.015

0.011

BED1

9/3/2021

0.029

0.00560.0052

BED1

5/5/2021<0.0020<0.0020<0.0020BED1

2/4/2021<0.0020<0.0020<0.0020PT

11/24/2020

0.040

0.011

0.0054GAC installed by NJDEP 12/05/2017.
BED1

10/21/2020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 489 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 485
BED1

6/12/2024<0.0020<0.0020<0.0020

BED1

2/20/2024<0.0020<0.0020<0.0020BED1

11/9/2023<0.0020<0.0020<0.0020PT

9/18/2023

0.073

0.025

0.041

BED1

9/18/2023<0.0020<0.0020<0.0020BED1

6/12/2023<0.0020<0.0020<0.0020BED1

3/22/2023<0.0020<0.0020<0.0020BED1

12/29/2022<0.0020<0.0020<0.0020BED1

7/11/2022<0.0020<0.0020<0.0020PT

7/11/2022

0.059

0.020

0.033

BED1

6/1/2022

0.0020<0.0020<0.0020BED2

6/1/2022<0.0020<0.0020<0.0020BED1

3/2/2022<0.0020<0.0020<0.0020BED2

12/6/2021<0.0020<0.0020<0.0020BED1

12/6/2021

0.0021<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 490 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/3/2021

0.083

0.016

0.031

BED1

9/3/2021<0.0020<0.0020<0.0020BED1

6/23/2021<0.0020<0.0020<0.0020BED1

3/17/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 02/12/2021 - 5yr.
PT

12/7/2020

0.069

0.013 J

0.029

GAC installed by NJDEP 12/01/2015.
BED1

12/7/2020<0.0020<0.0020<0.0020

Location: 486

-DUP

-DUP

4/22/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

4/22/2022<0.0020<0.0020<0.0020

10/27/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

10/27/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/2/2021<0.0020<0.0020<0.0020

10/29/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

10/29/2020<0.00200.0034<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 487-DUP

Location: 488
BED1

6/25/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 491 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/9/2023<0.0020<0.0020<0.0020BED1

8/3/2023<0.0020<0.0020<0.0020PT

8/3/2023

0.014

0.0066<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020BED1

1/11/2023<0.0020<0.0020<0.0020BED1

10/6/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 11/15/2022 - 5yr.
PT

7/12/2022

0.011

0.0046<0.0020BED1

7/12/2022<0.0020<0.0020<0.0020BED1

6/2/2022<0.0020<0.0020<0.0020BED1

3/3/2022<0.0020<0.0020<0.0020BED1

12/1/2021<0.0020<0.0020<0.0020BED2

9/14/2021<0.0020<0.0020<0.0020BED1

9/14/2021

0.0027<0.0020<0.0020PT

9/14/2021

0.015

0.0058<0.0020BED1

5/27/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 492 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

3/11/2021<0.0020<0.0020<0.0020

BED1

11/18/2020

0.0045<0.0020<0.0020PT

11/18/2020

0.016

0.0063<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 12/07/2017.

Location: 489
BED1

5/29/2024<0.0020<0.0020<0.0020BED1

2/28/2024<0.0020<0.0020<0.0020

BED1

11/29/2023<0.0020<0.0020<0.0020PT

7/26/2023

0.023<0.00200.0064

BED1

7/26/2023<0.0020<0.0020<0.0020BED1

4/18/2023<0.0020<0.0020<0.0020

BED1

1/19/2023<0.0020<0.0020<0.0020

Carbon Changeout 01/19/2023 - 5yr.
BED1

10/3/2022<0.0020<0.0020<0.0020BED1

7/7/2022<0.0020<0.0020<0.0020PT

7/7/2022

0.022<0.00200.0055BED1

5/2/2022<0.0020<0.0020<0.0020BED1

2/3/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

10/11/2021<0.0020<0.0020<0.0020PT

7/8/2021

0.011<0.0020<0.0020BED1

7/8/2021<0.0020<0.0020<0.0020BED1

4/9/2021<0.0020<0.0020<0.0020

BED1

1/21/2021<0.0020<0.0020<0.0020PT

11/18/2020

0.0098<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 12/12/2017.
BED1

11/18/2020<0.0020<0.0020<0.0020

Location: 490
BED1

5/31/2024<0.0020<0.0020<0.0020BED1

3/4/2024<0.0020<0.0020<0.0020BED1

12/5/2023<0.0020<0.0020<0.0020PT

9/19/2023

0.061

0.0062

0.024

Carbon Changeout 08/14/2023 - cracked tank.
BED1

9/19/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/14/2023 - cracked tank.
BED1

6/22/2023<0.0020<0.0020<0.0020BED1

2/15/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 494 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

11/15/2022<0.0020<0.0020<0.0020BED1

7/18/2022<0.0020<0.0020<0.0020PT

7/18/2022

0.057

0.0046

0.026

BED1

6/20/2022<0.0020<0.0020<0.0020BED1

2/28/2022<0.0020<0.0020<0.0020BED1

12/6/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 10/07/2021 - 5yr.
PT

8/3/2021

0.051

0.0061

0.021

BED1

8/3/2021<0.0020<0.0020<0.0020BED1

4/30/2021<0.0020<0.0020<0.0020BED2

2/1/2021<0.0020<0.0020<0.0020BED1

2/1/2021

0.0038<0.0020<0.0020PT

10/22/2020

0.064

0.00690.027

GAC installed by NJDEP 03/01/2016.
BED1

10/22/2020<0.0020<0.0020<0.0020

Location: 491
BED1

5/30/2024<0.0020<0.0020<0.0020BED1

3/5/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 495 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/6/2023<0.0020<0.0020<0.0020PT

8/15/2023

0.046

0.0048

0.015

BED1

8/15/2023<0.0020<0.0020<0.0020BED1

5/17/2023<0.0020<0.0020<0.0020BED1

2/28/2023<0.0020<0.0020<0.0020BED1

12/8/2022<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Carbon Changeout 12/08/2022 - 5yr.
BED2

7/12/2022<0.0020<0.0020<0.0020PT

7/12/2022

0.041

0.0033

0.011

BED1

7/12/2022

0.012<0.0020<0.0020BED1

5/16/2022

0.011<0.0020<0.0020BED2

5/16/2022<0.0020<0.0020<0.0020

BED1

3/29/2022<0.0020<0.0020<0.0020

BED1-DUP

3/29/2022

0.0024<0.0020<0.0020

BED2

3/29/2022<0.0020<0.0020<0.0020BED1

12/28/2021<0.0020<0.0020<0.0020

BED1-DUP

12/28/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 496 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

9/16/2021

0.046

0.0031

0.010

BED1

9/16/2021<0.0020<0.0020<0.0020BED1

5/27/2021<0.0020<0.0020<0.0020BED1

3/5/2021<0.0020<0.0020<0.0020PT

12/14/2020

0.046

0.00350.013

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed by NJDEP 12/21/2017.
BED1-DUP

12/14/2020<0.0020<0.0020<0.0020BED1

12/14/2020<0.00200.0020<0.0020

11/24/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

11/24/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 492-DUP

Location: 493
BED1

4/3/2024<0.0020<0.0020<0.0020BED1

1/3/2024<0.0020<0.0020<0.0020

BED1-DUP

1/3/2024<0.0020<0.0020<0.0020

BED1-DUP

10/2/2023<0.0020<0.0020<0.0020BED1

10/2/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 497 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/5/2023<0.0020<0.0020<0.0020PT

7/5/2023

0.057

0.055

0.036

BED1

4/4/2023<0.0020<0.0020<0.0020BED1

1/3/2023<0.0020<0.0020<0.0020

BED1-DUP

1/3/2023<0.0020<0.0020<0.0020BED1

10/3/2022<0.0020<0.0020<0.0020

BED1-DUP

10/3/2022<0.0020<0.0020<0.0020BED1

7/6/2022<0.0020<0.0020<0.0020

BED1-DUP

7/6/2022<0.0020<0.0020<0.0020PT

7/6/2022

0.049

0.055 J

0.034

BED1

4/6/2022<0.0020<0.0020<0.0020BED1

1/3/2022<0.0020<0.0020<0.0020

BED1-DUP

1/3/2022<0.0020<0.0020<0.0020BED1

10/4/2021<0.0020<0.0020<0.0020

BED1-DUP

10/4/2021<0.0020<0.0020<0.0020PT

7/13/2021

0.042

0.075

0.036

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 498 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/13/2021<0.0020<0.0020<0.0020BED1

4/1/2021<0.0020<0.0020<0.0020

12/14/2020

0.11

0.091

0.070

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.00200.00540.0053

0.12

0.057

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.010<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/03/2021.

Location: 494-DUP

3/12/2024<0.0020<0.0020<0.0020

3/12/2024<0.0020<0.0020<0.0020

3/14/2022<0.0020<0.0020<0.0020

12/14/2020<0.0020<0.0020<0.0020

Location: 495
BED1

4/9/2024<0.0020<0.0020<0.0020BED1

1/17/2024<0.0020<0.0020<0.0020BED1

10/12/2023<0.0020<0.0020<0.0020BED1

7/17/2023<0.0020<0.0020<0.0020PT

7/17/2023

0.029<0.0020

0.016

BED1

4/11/2023<0.0020<0.0020<0.0020

BED1

1/19/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 499 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

10/14/2022<0.0020<0.0020<0.0020BED1

7/13/2022<0.0020<0.0020<0.0020PT

7/13/2022

0.033<0.0020

0.019

BED1

4/12/2022<0.0020<0.0020<0.0020BED1

1/6/2022<0.0020<0.0020<0.0020BED1

10/4/2021<0.0020<0.0020<0.0020PT

7/6/2021

0.044

0.0034

0.020

BED1

7/6/2021<0.0020<0.0020<0.0020BED1

4/5/2021<0.0020<0.0020<0.0020

12/14/2020

0.058

0.00300.024<0.0020<0.00200.00300.019<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.0023<0.0020

0.045

0.026

<0.00200.0022<0.0020

0.044

0.021

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/26/2021.
-DUP

12/14/2020

0.049

GAC installed 01/26/2021.

Location: 496
BED1

4/4/2024<0.0020<0.0020<0.0020BED1

1/11/2024<0.0020<0.0020<0.0020BED1

10/11/2023<0.0020<0.0020<0.0020PT

7/24/2023

0.026<0.00200.0047

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 500 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

7/24/2023<0.0020<0.0020<0.0020BED1

4/18/2023<0.0020<0.0020<0.0020BED1

1/24/2023<0.0020<0.0020<0.0020BED1

10/26/2022<0.0020<0.0020<0.0020BED1

8/18/2022<0.0020<0.0020<0.0020PT

8/18/2022

0.038

0.00330.0091BED1

5/12/2022<0.0020<0.0020<0.0020BED1

2/14/2022<0.0020<0.0020<0.0020

BED1

11/15/2021<0.0020<0.0020<0.0020PT

8/31/2021

0.040

0.0038

0.010

BED1

8/31/2021<0.0020<0.0020<0.0020

BED1-DUP

4/5/2021<0.0020<0.0020<0.0020BED1

4/5/2021<0.0020<0.0020<0.0020-DUP

12/16/2020

0.056

0.0043 J

0.015 J

<0.0020<0.00200.0045 J

0.013 J

<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.046

0.030

<0.0020<0.0020<0.0020

0.044

0.028

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/16/2021.
12/16/2020

0.052

GAC installed 02/16/2021.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 501 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

<0.00200.0041<0.0020

PFDA

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 497
POST

3/25/2024<0.0020<0.0020<0.0020PRE

3/25/2024<0.0020<0.0020<0.0020POST

4/4/2022<0.0020<0.0020<0.0020PRE

4/4/2022<0.0020<0.0020<0.0020

12/16/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 498
BED1

5/3/2024<0.0020<0.0020<0.0020

BED1-DUP

2/12/2024<0.0020<0.0020<0.0020BED1

2/12/2024<0.0020<0.0020<0.0020BED1

10/9/2023<0.0020<0.0020<0.0020BED1

7/18/2023<0.0020<0.0020<0.0020PT

7/18/2023

0.015<0.0020<0.0020BED1

4/11/2023<0.0020<0.0020<0.0020BED1

1/10/2023<0.0020<0.0020<0.0020BED1

10/7/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

7/14/2022<0.0020<0.0020<0.0020PT

7/14/2022

0.020<0.0020<0.0020BED1

4/12/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

1/19/2022<0.0020<0.0020<0.0020BED1

10/11/2021<0.0020<0.0020<0.0020PT

7/19/2021

0.020<0.0020<0.0020BED1

7/19/2021<0.0020<0.0020<0.0020BED1

4/12/2021<0.0020<0.0020 UJ <0.0020

BED1-DUP

4/12/2021<0.0020<0.0020<0.0020

12/16/2020

0.022<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.026

0.012

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA<0.0020<0.0020

GAC installed 01/25/2021.

Location: 499
BED1

4/2/2024<0.0020<0.0020<0.0020BED1

1/3/2024<0.0020<0.0020<0.0020BED1

10/2/2023<0.0020<0.0020<0.0020BED1

7/5/2023<0.0020<0.0020<0.0020PT

7/5/2023

0.041

0.021

0.0081

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

4/3/2023<0.0020<0.0020<0.0020BED1

1/3/2023<0.0020<0.0020<0.0020BED1

10/3/2022<0.0020<0.0020<0.0020BED1

7/7/2022<0.0020<0.0020<0.0020PT

7/7/2022

0.053

0.043 J

0.014

BED1

5/11/2022<0.0020<0.0020<0.0020BED1

2/15/2022<0.0020<0.0020<0.0020

BED1

11/16/2021<0.0020<0.0020<0.0020BED1

8/16/2021<0.0020<0.0020<0.0020PT

8/16/2021

0.078

0.027

0.014

BED1

4/5/2021<0.0020<0.0020<0.0020

12/29/2020

0.071

0.028

0.014

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.00200.013

0.0038

0.042

0.033

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/11/2021.

Location: 500-DUP

5/8/2023<0.0020<0.0020<0.0020

12/28/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

12/28/2020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

1/6/2021<0.0020<0.0020<0.0020<0.0020<0.0020

1/6/2021<0.0020<0.0020<0.0020<0.0020

3/7/2024<0.0020<0.0020<0.0020

3/21/2022<0.0020<0.0020<0.0020

1/6/2021<0.0020<0.0020<0.0020

4/11/2022<0.0020<0.0020<0.0020

1/6/2021<0.0020<0.0020<0.0020

4/25/2022<0.0020<0.0020<0.0020

4/25/2022<0.0020<0.0020<0.0020

1/6/2021<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 501-DUP

Location: 502

Location: 503

Location: 504-DUP

Location: 505
1/6/2021

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 506
BED1

4/4/2024<0.0020<0.0020<0.0020BED1

1/5/2024<0.0020<0.0020<0.0020BED1

10/2/2023<0.0020<0.0020<0.0020PT

7/11/2023

0.032<0.0020<0.0020BED1

7/11/2023<0.0020<0.0020<0.0020BED1

4/11/2023<0.0020<0.0020<0.0020BED1

1/5/2023<0.0020<0.0020<0.0020

BED1

10/20/2022<0.0020<0.0020<0.0020BED1

8/25/2022<0.0020<0.0020<0.0020PT

8/25/2022

0.041<0.0020<0.0020BED1

5/17/2022<0.0020<0.0020<0.0020

BED1

2/21/2022<0.0020<0.0020<0.0020

BED1

11/23/2021<0.0020<0.0020<0.0020BED1

7/22/2021<0.0020<0.0020<0.0020PT

7/22/2021

0.034<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

4/22/2021<0.0020<0.0020<0.0020

1/6/2021

0.034<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020

0.027

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 02/17/2021.

Location: 507
6/17/2024<0.0020<0.0020<0.0020-DUP

6/17/2024<0.0020<0.0020<0.0020POST

3/14/2022<0.0020<0.0020<0.0020PRE

3/14/2022<0.0020<0.0020<0.0020PRE

2/11/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

1/6/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Post-treatment sample.

Location: 508
7/28/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

1/11/2021<0.0020<0.0020<0.0020

4/3/2023<0.0020<0.0020<0.0020

1/11/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

1/11/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 509-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 510
BED1

6/11/2024<0.0020<0.0020<0.0020BED1

2/1/2024<0.0020<0.0020<0.0020BED1

10/30/2023<0.0020<0.0020<0.0020BED1

8/22/2023<0.0020<0.0020<0.0020PT

8/22/2023

0.023

0.0043<0.0020BED1

5/23/2023<0.0020<0.0020<0.0020

BED1

2/21/2023<0.0020<0.0020<0.0020BED1

12/1/2022<0.0020<0.0020<0.0020BED1

9/28/2022<0.0020<0.0020<0.0020PT

9/28/2022

0.027

0.00770.0044BED1

6/2/2022<0.0020<0.0020<0.0020BED1

3/10/2022<0.0020<0.0020<0.0020

BED1

11/29/2021<0.0020<0.0020<0.0020BED1

8/30/2021<0.0020<0.0020<0.0020

Carbon Changeout 07/26/2021 - Fe.
PT

8/30/2021

0.025

0.0064 J

0.0034

Carbon Changeout 07/26/2021 - Fe.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 508 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

1/19/2021

0.027 J

0.0037 J

0.0029<0.0020<0.00200.0033 J

0.0027<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.024

0.014

<0.0020<0.0020<0.0020

0.023

0.014

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/21/2021.
-DUP

1/19/2021

0.025 J

GAC installed 04/21/2021.

Location: 511
BED1

5/21/2024<0.0020<0.0020<0.0020BED1

1/30/2024<0.0020<0.0020<0.0020

BED1

10/18/2023<0.0020<0.0020<0.0020PT

8/2/2023

0.041<0.0020<0.0020BED1

8/2/2023<0.0020<0.0020<0.0020BED1

10/10/2022<0.0020<0.0020<0.0020BED1

8/18/2022<0.0020<0.0020<0.0020PT

8/18/2022

0.041<0.0020<0.0020BED1

5/16/2022<0.0020<0.0020<0.0020BED1

2/15/2022<0.0020<0.0020<0.0020

BED1

11/17/2021<0.0020<0.0020<0.0020PT

9/15/2021

0.047<0.0020<0.0020BED1

9/15/2021<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 509 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

1/19/2021

0.040<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020

0.040

0.019

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/02/2021.

Location: 512
3/7/2024<0.0020<0.0020<0.0020

3/21/2022<0.0020<0.0020<0.0020

1/19/2021<0.0020<0.0020<0.0020

Location: 513
BED1

6/18/2024<0.0020<0.0020<0.0020

BED1

2/20/2024<0.0020<0.0020<0.0020BED1

10/25/2023<0.0020<0.0020<0.0020BED1

8/3/2023<0.0020<0.0020<0.0020PT

8/3/2023

0.088

0.041

0.013

BED1

4/20/2023<0.0020<0.0020<0.0020BED1

1/25/2023<0.0020<0.0020<0.0020BED1

10/31/2022<0.0020<0.0020<0.0020BED1

7/12/2022<0.0020<0.0020<0.0020PT

7/12/2022

0.061

0.039

0.012

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 510 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

4/6/2022<0.0020<0.0020<0.0020BED1

1/4/2022<0.0020<0.0020<0.0020BED1

10/5/2021<0.0020<0.0020<0.0020BED1

7/14/2021<0.0020<0.0020<0.0020PT

7/14/2021

0.093

0.044

0.014

1/20/2021

0.080

0.018

0.014

<0.0020<0.0020

0.021

0.015

<0.0020<0.00200.0039

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.012

0.0023

0.033

0.019

<0.0020<0.00200.012

0.0027

0.033

0.021

<0.0020<0.0020<0.0020<0.00200.036<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.016<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.035

0.015

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/14/2021.
-DUP

1/20/2021

0.090

GAC installed 04/14/2021.

Location: 514
1/25/2021

0.045

Treatment incomplete/in progress - declined bottled water.
-DUP

1/25/2021

0.042<0.00200.0037

Treatment incomplete/in progress - declined bottled water.

Location: 515
2/27/2023<0.0020<0.0020<0.0020

1/25/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 516
1/25/2021

Location: 517
BED1

4/18/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 511 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

1/31/2024<0.0020<0.0020<0.0020BED1

10/31/2023<0.0020<0.0020<0.0020PT

8/9/2023

0.054

0.0072

0.012

BED1

8/9/2023<0.0020<0.0020<0.0020BED1

5/15/2023<0.0020<0.0020<0.0020

BED1

2/21/2023<0.0020<0.0020<0.0020

BED1

11/15/2022<0.0020<0.0020<0.0020BED1

9/8/2022<0.0020<0.0020<0.0020PT

9/8/2022

0.049

0.00320.0042

BED1

6/13/2022<0.0020<0.0020<0.0020BED1

3/15/2022<0.0020<0.0020<0.0020BED1

12/15/2021<0.0020<0.0020<0.0020

1/25/2021

0.076

0.0051

0.012<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.088

0.049

PFDA

0.0026

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA

0.0023<0.0020

GAC installed 09/07/2021.

Location: 518
4/4/2022<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 512 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

1/25/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.045

0.033

0.0021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 519
BED1

5/24/2024<0.0020<0.0020<0.0020BED1

2/23/2024<0.0020<0.0020<0.0020

BED1

11/17/2023<0.0020<0.0020<0.0020PT

8/1/2023

0.040

0.011

0.016

BED1

8/1/2023<0.0020<0.0020<0.0020BED1

4/24/2023<0.0020<0.0020<0.0020BED1

1/25/2023<0.0020<0.0020<0.0020

BED1

10/21/2022<0.0020<0.0020<0.0020PT

9/20/2022

0.086

0.015

0.021

BED1

9/20/2022<0.0020<0.0020<0.0020BED1

4/26/2022<0.0020<0.0020<0.0020

1/25/2021

0.062

0.014

0.018

<0.0020<0.0020

GAC installed 02/17/2022.

Location: 520
4/10/2023<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 513 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

-DUP

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

1/26/2021<0.0020<0.0020<0.0020<0.0020<0.0020

1/26/2021<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.040

0.0046<0.0020<0.0020<0.00200.042

0.0045<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0026<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0025<0.0020

Location: 521
BED1

4/10/2024<0.0020<0.0020<0.0020BED1

1/24/2024<0.0020<0.0020<0.0020BED1

10/16/2023<0.0020<0.0020<0.0020BED1

8/2/2023<0.0020<0.0020<0.0020PT

8/2/2023

0.049<0.00200.0029BED1

4/26/2023<0.0020<0.0020<0.0020

BED1-DUP

4/26/2023<0.0020<0.0020<0.0020BED1

2/6/2023<0.0020<0.0020<0.0020BED1

11/7/2022<0.0020<0.0020<0.0020BED1

8/29/2022<0.0020<0.0020<0.0020PT

8/29/2022

0.057

0.00250.0030BED1

5/31/2022<0.0020<0.0020<0.0020BED1

3/7/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 514 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

12/8/2021<0.0020<0.0020<0.0020

BED1

9/20/2021<0.0020<0.0020<0.0020PT

9/20/2021

0.052

0.00370.0026

1/26/2021

0.067

0.00230.0024NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.058

0.032

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA<0.0020<0.0020

GAC installed 06/11/2021.

Location: 522
BED1

5/10/2024<0.0020<0.0020<0.0020BED1

2/12/2024<0.0020<0.0020<0.0020BED1

11/9/2023<0.0020<0.0020<0.0020PT

8/8/2023

0.024<0.0020<0.0020BED1

8/8/2023<0.0020<0.0020<0.0020BED1

4/19/2023<0.0020<0.0020<0.0020

Carbon Changeout 04/19/2023 - Fe.
BED1

12/5/2022<0.0020<0.0020<0.0020BED1

9/28/2022<0.0020<0.0020<0.0020PT

9/28/2022

0.023<0.0020<0.0020BED1

5/16/2022<0.0020<0.0020<0.0020BED1

1/31/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 515 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED110/25/2021<0.0020<0.0020<0.0020PT

7/21/2021

0.019<0.0020<0.0020

BED1

7/21/2021<0.0020<0.0020<0.0020

1/26/2021

0.019<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/13/2022<0.0020<0.0020<0.0020

5/3/2021<0.0020<0.0020

1/26/2021<0.0020

2/3/2021

2/3/2021

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.020

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0034<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/09/2021.

Location: 523
1/26/2021

Location: 524
1/26/2021

Location: 525

PRE

Post treatment sample.

Location: 526-DUP

Location: 527
BED1

4/9/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 516 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

1/11/2024<0.0020<0.0020<0.0020BED1

1/11/2024<0.0020<0.0020<0.0020BED1

10/10/2023<0.0020<0.0020<0.0020PT

7/19/2023

0.041<0.0020<0.0020BED1

7/19/2023<0.0020<0.0020<0.0020BED1

4/17/2023<0.0020<0.0020<0.0020

BED1

1/19/2023<0.0020<0.0020<0.0020BED1

10/14/2022<0.0020<0.0020<0.0020BED1

7/26/2022<0.0020<0.0020<0.0020PT

7/26/2022

0.046<0.0020<0.0020

BED1

4/20/2022<0.0020<0.0020<0.0020

BED1-DUP

1/26/2022<0.0020<0.0020<0.0020BED1

1/26/2022<0.0020<0.0020<0.0020BED1

11/1/2021<0.0020<0.0020<0.0020PT

7/13/2021

0.029<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 517 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

7/13/2021<0.0020<0.0020<0.0020

2/3/2021

0.043<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/15/2022<0.0020<0.0020<0.0020

8/15/2022<0.0020<0.0020<0.0020

2/3/2021<0.0020<0.0020<0.0020<0.0020<0.0020

3/8/2021<0.0020

3/8/2021

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.044

0.020

<0.0020<0.0020<0.0020<0.00200.0030<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/31/2021.

Location: 528
2/3/2021

Location: 529-DUP

Location: 530
2/4/2021

Location: 531-DUP

Location: 532
BED1

5/29/2024<0.0020<0.0020<0.0020

BED1

2/21/2024<0.0020<0.0020<0.0020

BED1

11/16/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 518 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED18/28/2023<0.0020<0.0020<0.0020PT

8/28/2023

0.043

0.00230.0043

BED1

5/31/2023<0.0020<0.0020<0.0020BED1

3/9/2023<0.0020<0.0020<0.0020

BED1

11/16/2022<0.0020<0.0020<0.0020BED1

8/30/2022<0.0020<0.0020<0.0020PT

8/30/2022

0.049

0.00260.0044BED1

5/23/2022<0.0020<0.0020<0.0020BED1

2/3/2022<0.0020<0.0020<0.0020BED1

11/4/2021<0.0020<0.0020<0.0020BED1

7/16/2021<0.0020<0.0020<0.0020PT

7/16/2021

0.098

0.00310.0060-DUP

2/5/2021

0.023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.024

0.011

<0.0020<0.0020<0.0020

0.026

0.012

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 04/22/2021.
2/5/2021

0.025

GAC installed 04/22/2021.

Location: 533
BED1

12/21/2023<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 519 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1-DUP

12/21/2023<0.0020<0.0020<0.0020BED1

7/6/2023<0.0020<0.0020<0.0020PT

7/6/2023

0.0031<0.0020<0.0020

9/20/2022

0.058<0.00200.0033<0.00250.00093

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.0022

0.040

0.019

<0.0020<0.0025

0.0023

0.032

0.015

0.003

0.034

0.018

PFUnA

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020<0.0020<0.0025<0.0025<0.0025<0.0025<0.0025<0.0025<0.0025<0.0025<0.0025<0.0025

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020

GAC installed 01/17/2023.
10/7/2015

0.042

NJDEP sampled, added their data to EIM, exceeds criteria. Declined NJDEP's treatment offer.

Location: 534
2/24/2016

0.068<0.0025

0.00620.00077

NJDEP sampled, added their data to EIM, exceeds criteria. Declined NJDEP's treatment offer. Received bottled water until house was demolished and well decommissioned.

Location: 535-DUP

3/14/2022<0.0020<0.0020<0.0020

2/9/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

2/9/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.041

0.00360.0066<0.0020<0.0020<0.0020<0.0020

0.046

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 536
2/9/2021

Permanent bottled water.

Location: 537
2/9/2021

Location: 538
BED1

6/19/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 520 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/20/2024<0.0020<0.0020<0.0020BED1

10/24/2023<0.0020<0.0020<0.0020BED1

8/7/2023<0.0020<0.0020<0.0020

BED1-DUP

8/7/2023<0.0020<0.0020<0.0020PT

8/7/2023<0.0020<0.0020<0.0020BED1

5/9/2023<0.0020<0.0020<0.0020BED1

2/8/2023<0.0020<0.0020<0.0020

BED1-DUP

2/8/2023<0.0020<0.0020<0.0020BED1

11/9/2022<0.0020<0.0020<0.0020

BED1-DUP

11/9/2022<0.0020<0.0020<0.0020BED1

8/8/2022<0.0020<0.0020<0.0020

BED1-DUP

8/8/2022<0.0020<0.0020<0.0020PT

8/8/2022<0.0020<0.0020<0.0020BED1

5/3/2022<0.0020<0.0020<0.0020BED1

3/16/2022<0.0020<0.0020<0.0020BED1

12/8/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 521 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PT

8/30/2021

0.044<0.0020<0.0020BED1

8/30/2021<0.0020<0.0020<0.0020

2/9/2021

0.028<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.032

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 06/10/2021.

Location: 539
2/9/2021

Location: 540
2/9/2021

Location: 541
2/9/2021

Location: 542
BED1

5/3/2024<0.0020<0.0020<0.0020BED1

2/16/2024<0.0020<0.0020<0.0020BED1

11/10/2023<0.0020<0.0020<0.0020BED1

8/24/2023<0.0020<0.0020<0.0020PT

8/24/2023

0.030<0.0020<0.0020BED1

5/18/2023<0.0020<0.0020<0.0020BED1

2/22/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 522 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

11/8/2022<0.0020<0.0020<0.0020BED1

9/19/2022<0.0020<0.0020<0.0020PT

9/19/2022

0.028<0.0020<0.0020

BED1

4/20/2022<0.0020<0.0020<0.0020

2/9/2021

0.025<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.028

0.011

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 03/11/2022.

Location: 543
7/11/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/11/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

2/11/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

4/25/2022<0.0020<0.0020<0.0020

POST

2/12/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

2/12/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

2/12/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020-DUP

Location: 544

Location: 545-DUP

2/17/2021<0.0020 UJ <0.0020<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020 UJ<0.0020 UJ

2/17/2021<0.0020 UJ <0.0020<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020 UJ<0.0020 UJ

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 523 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

5/2/2022<0.0020<0.0020

2/17/2021<0.0020 UJ <0.0020<0.0020 UJ

5/8/2023<0.0020<0.0020

2/17/2021<0.0020 UJ <0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 546<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020 UJ<0.0020 UJ

Location: 547<0.0020<0.0020 UJ

Location: 548
4/11/2022<0.0020

2/17/2021<0.0020 UJ <0.0020<0.0020 UJ<0.0020 UJ <0.0020

Location: 549
BED1

5/13/2024<0.0020<0.0020<0.0020BED1

2/6/2024<0.0020<0.0020<0.0020BED1

10/31/2023<0.0020<0.0020<0.0020BED1

7/17/2023<0.0020<0.0020<0.0020PT

7/17/2023

0.11

0.00500.0071BED1

4/10/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 524 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

1/23/2023<0.0020<0.0020<0.0020

BED1

10/21/2022<0.0020<0.0020<0.0020

BED1

7/20/2022<0.0020<0.0020<0.0020PT

7/20/2022

0.095

0.00340.0050 J

BED1

4/18/2022<0.0020<0.0020<0.0020BED1

1/25/2022<0.0020<0.0020<0.0020BED1

10/26/2021<0.0020<0.0020<0.0020PT

7/14/2021

0.029<0.0020<0.0020BED1

7/14/2021<0.0020<0.0020<0.0020

2/17/2021

0.064 J

0.00930.0071 J<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/19/2023<0.0020<0.0020<0.0020

2/25/2021<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.011

<0.00200.11

0.022 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 06/25/2021.

Location: 550
2/23/2021

Location: 551

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 525 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

7/8/2024<0.0020<0.0020<0.0020

5/9/2022<0.0020<0.0020<0.0020

2/25/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 552<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 553
BED1

6/24/2024<0.0020<0.0020<0.0020

BED1

3/19/2024<0.0020<0.0020<0.0020BED1

12/12/2023<0.0020<0.0020<0.0020PT

9/5/2023

0.066

0.00270.0021

BED1

9/5/2023<0.0020<0.0020<0.0020BED1

6/5/2023<0.0020<0.0020<0.0020

BED1

2/20/2023<0.0020<0.0020<0.0020BED1

10/31/2022<0.0020<0.0020<0.0020BED1

8/22/2022<0.0020<0.0020<0.0020PT

8/22/2022

0.067

0.00280.0020BED1

5/2/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 526 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED11/31/2022<0.0020<0.0020<0.0020PT

9/1/2021

0.061

0.0036 J

0.0023

BED1

9/1/2021<0.0020<0.0020<0.0020

2/25/2021

0.061

0.0023<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.056

0.025

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 05/26/2021.

Location: 554-DUP

3/4/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/4/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.10

0.00340.012<0.0020<0.0020<0.0020<0.0020

0.053

0.024

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 555
3/4/2021

Permanent bottled water.

Location: 556
POST

6/10/2024<0.0020<0.0020<0.0020PRE

6/10/2024<0.0020<0.0020<0.0020

2/10/2021<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #12).
-DUP

2/10/2021<0.0020<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #12).

Location: 557
BED1

4/10/2024<0.0020<0.0020<0.0020

BED1-DUP

4/10/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 527 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

1/24/2024<0.0020<0.0020<0.0020BED1

1/24/2024<0.0020<0.0020<0.0020BED1

10/16/2023<0.0020<0.0020<0.0020BED1

7/31/2023<0.0020<0.0020<0.0020PT

7/31/2023

0.041

0.00210.0034BED1

4/24/2023<0.0020<0.0020<0.0020BED1

1/30/2023<0.0020<0.0020<0.0020BED1

10/24/2022<0.0020<0.0020<0.0020PT

7/18/2022

0.040<0.00200.0035BED1

7/18/2022<0.0020<0.0020<0.0020BED1

4/18/2022<0.0020<0.0020<0.0020BED1

1/24/2022<0.0020<0.0020<0.0020-DUP

3/9/2021

0.040<0.00200.0027<0.0020<0.00200.00200.0028<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.040

0.024

<0.0020<0.0020<0.0020

0.041

0.025

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 10/26/2021.
3/9/2021

0.041

GAC installed 10/26/2021.

Location: 558
PRE

3/25/2024<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 528 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

POST

3/25/2024<0.0020<0.0020<0.0020POST

4/4/2022<0.0020<0.0020<0.0020PRE

4/4/2022

0.00300.0030<0.0020

3/9/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA<0.0020<0.0020

Location: 559
BED1

6/5/2024<0.0020<0.0020<0.0020BED1

3/14/2024<0.0020<0.0020<0.0020

BED1

12/21/2023<0.0020<0.0020<0.0020PT

9/20/2023

0.038<0.00200.0051BED1

9/20/2023<0.0020<0.0020<0.0020BED1

5/16/2023<0.0020<0.0020<0.0020BED1

2/8/2023<0.0020<0.0020<0.0020BED1

11/8/2022<0.0020<0.0020<0.0020BED1

9/1/2022<0.0020<0.0020<0.0020PT

9/1/2022

0.041<0.00200.0032

BED1

5/24/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 529 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

2/3/2022<0.0020<0.0020<0.0020BED1

10/27/2021<0.0020<0.0020<0.0020BED1

7/16/2021<0.0020<0.0020<0.0020PT

7/16/2021

0.068<0.00200.0038-DUP

3/17/2021

0.053<0.00200.0029<0.0020<0.0020<0.00200.0027<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/15/2024

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.028

0.020

<0.0020<0.0020<0.0020<0.0020

0.025

0.019

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/25/2021<0.0020<0.0020<0.0020<0.0020

3/25/2021<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 05/20/2021.
3/17/2021

0.049

GAC installed 05/20/2021.

Location: 560
3/17/2021

Location: 561
3/17/2021

Location: 562
3/17/2021

Location: 563-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 530 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

6/5/2023<0.0020<0.0020<0.0020

3/25/2021<0.0020<0.0020<0.0020<0.0020<0.0020

4/12/2021<0.0020<0.0020<0.0020<0.0020

4/12/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/18/2023<0.0020<0.0020<0.0020

8/2/2021<0.0020<0.0020

8/2/2021<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 564

Location: 565-DUP

Location: 566
4/12/2021

Location: 567-DUP

Location: 568
4/19/2021

Location: 569
4/19/2021

Location: 570
BED1

11/15/2023

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 531 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

6/21/2023<0.0020<0.0020<0.0020BED1

3/22/2023<0.0020<0.0020<0.0020

BED1-DUP

3/22/2023<0.0020<0.0020<0.0020BED1

8/29/2022<0.0020<0.0020<0.0020PT

8/29/2022

0.025<0.0020<0.0020BED1

3/28/2022<0.0020<0.0020<0.0020-DUP

4/19/2021

0.028<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.047

0.020

<0.0020<0.0020<0.0020

0.048

0.021

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 10/06/2021.
4/19/2021

0.029

GAC installed 10/06/2021.

Location: 571
BED1

4/9/2024<0.0020<0.0020<0.0020BED1

1/17/2024<0.0020<0.0020<0.0020BED1

10/11/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/01/2023 - Fe.
BED1

7/21/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/01/2023 - Fe.
PT

7/21/2023

0.035<0.0020<0.0020

Carbon Changeout 08/01/2023 - Fe.
BED1

4/4/2023<0.0020<0.0020<0.0020BED1

1/3/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 532 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

10/4/2022<0.0020<0.0020<0.0020BED1

7/6/2022<0.0020<0.0020<0.0020PT

7/6/2022

0.033<0.0020<0.0020-DUP

4/27/2021

0.026<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.040

0.012

<0.0020<0.0020<0.0020<0.00200.052 J

0.016 J

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020 UJ<0.0020 UJ

GAC installed 06/07/2022.
4/27/2021

0.035 J

GAC installed 06/07/2022.

Location: 572-DUP

6/27/2022<0.0020<0.0020<0.0020

5/3/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/3/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 573
BED1

4/10/2024<0.0020<0.0020<0.0020BED1

1/24/2024<0.0020<0.0020<0.0020BED1

10/16/2023<0.0020<0.0020<0.0020PT

7/26/2023

0.050

0.0042

0.011

BED1

7/26/2023<0.0020<0.0020<0.0020BED1

4/26/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 533 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

2/6/2023<0.0020<0.0020<0.0020BED1

12/5/2022<0.0020<0.0020<0.0020BED1

9/12/2022<0.0020<0.0020<0.0020PT

9/12/2022

0.059

0.0060

0.012

BED1

6/1/2022<0.0020<0.0020<0.0020BED1

3/7/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

12/1/2021<0.0020<0.0020<0.0020

5/10/2021

0.052

0.0050 J

0.0099NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.00200.00250.0047

0.025

0.021

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 07/09/2021.

Location: 574

-DUP

-DUP

6/6/2022<0.0020<0.0020<0.0020

6/6/2022<0.0020<0.0020<0.0020

5/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

10/1/2019<0.0017<0.0017<0.0017<0.0026<0.0017<0.0017<0.0017<0.0017<0.0017<0.0017<0.0017<0.0017<0.0017<0.0017<0.0017<0.0017<0.0026<0.0017

Location: 575<0.0017<0.0044

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 534 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

5/12/2021<0.0020<0.0020<0.0020<0.0020<0.0020

5/12/2021<0.0020<0.0020<0.0020<0.0020

5/19/2021

0.0039<0.0020<0.0020

5/19/2021

0.0038<0.0020<0.0020

7/11/2022

0.0039<0.0020<0.0020

7/11/2022

0.0047<0.0020<0.0020

5/19/2021

0.0047<0.0020<0.0020

0.045

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0067<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0042

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.00650.0021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.00900.0030<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 576-DUP

Location: 577-DUP

Location: 578-DUP

Location: 579
5/21/2021

Location: 580
4/8/2024

Treatment incomplete/in progress - bottled water.
-DUP

4/8/2024

0.047<0.00200.0040Treatment incomplete/in progress - bottled water.
5/21/2021

0.043 J

<0.00200.0028<0.0020 UJ<0.0020<0.0020<0.0020

0.033

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.045<0.00200.0027<0.0020<0.0020<0.0020<0.0020

0.039

0.029

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Declined treatment offer.
-DUP

5/21/2021

Declined treatment offer.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 535 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 581
BED1

5/9/2024<0.0020<0.0020<0.0020BED1

1/18/2024<0.0020<0.0020<0.0020

BED1

10/20/2023<0.0020<0.0020<0.0020BED1

8/8/2023<0.0020<0.0020<0.0020

BED1-DUP

8/8/2023<0.0020<0.0020<0.0020PT

8/8/2023

0.057

0.0035

0.013

BED1

5/30/2023<0.0020<0.0020<0.0020

BED1-DUP

5/30/2023<0.0020<0.0020<0.0020BED1

3/7/2023<0.0020<0.0020<0.0020BED1

11/3/2022<0.0020<0.0020<0.0020PT

8/29/2022

0.061

0.0041

0.013

BED1

8/29/2022<0.0020<0.0020<0.0020

BED1-DUP

5/18/2022<0.0020<0.0020<0.0020BED1

5/18/2022<0.0020<0.0020<0.0020BED1

2/15/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 536 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

10/21/2021<0.0020<0.0020<0.0020

5/25/2021

0.060

0.0033 J

0.013

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.00200.0020<0.0020

0.035

0.035

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 08/24/2021.

Location: 582
-DUP

-DUP

9/6/2022<0.0020<0.0020<0.0020

9/6/2022<0.0020<0.0020<0.0020

5/25/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/25/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 583
BED1

6/4/2024<0.0020<0.0020<0.0020BED1

3/11/2024<0.0020<0.0020<0.0020BED1

12/11/2023<0.0020<0.0020<0.0020PT

9/18/2023

0.037

0.00250.0049BED1

9/18/2023<0.0020<0.0020<0.0020BED1

5/8/2023<0.0020<0.0020<0.0020BED1

2/2/2023<0.0020<0.0020<0.0020

BED1

10/19/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 537 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

8/9/2022<0.0020<0.0020<0.0020PT

8/9/2022

0.043

0.0026 J

0.0049BED1

5/2/2022<0.0020<0.0020<0.0020BED1

3/23/2022<0.0020<0.0020<0.0020-DUP

6/2/2021

0.065

0.00310.0056<0.0020<0.00200.00340.0054<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.0024<0.0020

0.051

0.025

<0.00200.0026<0.0020

0.052

0.024

<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 11/09/2021.
6/2/2021

0.060

GAC installed 11/09/2021.

Location: 584
BED1

5/13/2024<0.0020<0.0020<0.0020BED1

2/23/2024<0.0020<0.0020<0.0020

BED1-DUP

2/23/2024<0.0020<0.0020<0.0020

BED1

11/21/2023<0.0020<0.0020<0.0020PT

8/30/2023

0.10

0.013 J

0.0040 J

BED1

8/30/2023<0.0020<0.0020<0.0020BED1

5/25/2023<0.0020<0.0020<0.0020BED1

2/15/2023<0.0020<0.0020<0.0020BED1

11/3/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 538 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

BED1

8/9/2022<0.0020<0.0020<0.0020PT

8/9/2022

0.079

0.015 J

0.0037BED1

4/27/2022<0.0020<0.0020<0.0020BED1

1/26/2022<0.0020<0.0020<0.0020

6/2/2021

0.080

0.013

0.0037

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

0.0062

0.028

0.019

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA<0.0020<0.0020

GAC installed 10/05/2021.

Location: 585
BED1

4/18/2024<0.0020<0.0020<0.0020BED1

1/16/2024<0.0020<0.0020<0.0020

BED1

10/18/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

8/1/2023<0.0020<0.0020<0.0020

Carbon Changeout 08/01/2023 - results driven.
PT

8/1/2023

0.065 J

0.0025 J

0.0085 J

Carbon Changeout 08/01/2023 - results driven.
BED1

6/21/2023

0.0042<0.0020<0.0020

BED2

6/21/2023

0.0036<0.0020<0.0020

BED1

12/21/2022<0.0020<0.0020<0.0020BED1

7/7/2022<0.0020<0.0020<0.0020PT

7/7/2022

0.070

0.0023 J

0.0064

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 539 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
BED1

Date

PFOA

PFOS

PFNA

4/6/2022<0.0020<0.0020<0.0020

6/2/2021

0.075

0.00220.0075NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020

0.060

0.050

0.0033<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0020<0.0020

GAC installed 03/30/2022.

Location: 586
6/27/2022<0.0020<0.0020<0.0020

6/8/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.027

0.012

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0068<0.0020

0.041

0.024

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 587
6/8/2021

PWS connection 11/23/2022. Well decommissioned 11/23/2022.

Location: 588
6/8/2021

0.052

0.016

0.015

<0.0020

Replacement well installed (Regulatory Location ID #685). Not qualified so bottled water stopped. Well decommissioned according to NJ Data Miner.

Location: 589
BED1

6/4/2024<0.0020<0.0020<0.0020BED1

2/28/2024<0.0020<0.0020<0.0020BED1

12/5/2023<0.0020<0.0020<0.0020

BED1-DUP

12/5/2023<0.0020<0.0020<0.0020PT

9/12/2023

0.057

0.016 J

0.0097BED1

9/12/2023<0.0020<0.0020<0.0020BED1

4/5/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 540 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

8/29/2022

0.030

0.0034 J

0.00460.010

0.0032<0.0020

3/25/2024<0.0020<0.0020<0.0020

6/27/2022<0.0020<0.0020<0.0020

6/27/2022<0.0020<0.0020<0.0020

6/8/2021<0.0020<0.0020

6/8/2021<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DAADONA

GAC installed 01/18/2023.
6/8/2021

0.00280.0062<0.0020<0.00200.00630.0042<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 590

-DUP

-DUP

Location: 591
6/8/2021

Location: 592
POST

6/20/2022<0.0020<0.0020<0.0020PRE

6/20/2022<0.0020<0.0020<0.0020

6/24/2021<0.0020<0.0020<0.0020

11/1/2022<0.0020<0.0020<0.0020

6/24/2021<0.0020<0.0020<0.0020

Location: 593

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 541 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

6/24/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/19/2022

0.00590.0021<0.0020

8/2/2021

0.00470.0025<0.0020

7/28/2022<0.0020<0.0020<0.0020

8/2/2021<0.0020<0.0020<0.0020

9/12/2022<0.0020<0.0020<0.0020-DUP

9/12/2022<0.0020<0.0020<0.0020-DUP

8/4/2021<0.0020<0.0020

8/4/2021<0.0020

-DUP

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0056<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 594
8/2/2021

Location: 595

Location: 596

Location: 597

Location: 598
BED1

4/19/2024<0.0020<0.0020<0.0020BED1

1/18/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 542 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1-DUP

10/20/2023<0.0020<0.0020<0.0020

BED1

10/20/2023<0.0020<0.0020<0.0020BED1

8/1/2023<0.0020<0.0020<0.0020PT

8/1/2023

0.058<0.00200.0045BED1

5/3/2023<0.0020<0.0020<0.0020BED1

2/13/2023<0.0020<0.0020<0.0020

BED1

11/16/2022<0.0020<0.0020<0.0020PT

9/12/2022

0.095

0.00210.0059BED1

9/12/2022<0.0020<0.0020<0.0020BED1

6/29/2022<0.0020<0.0020<0.0020BED1

1/25/2022<0.0020<0.0020<0.0020

8/4/2021

0.090

0.00220.0093<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.054

0.024

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 10/12/2021.

Location: 599
8/4/2021

Location: 600
BED1

1/5/2022

GAC removed 02/02/2022 at owner's request. Permanent bottled water until owner declined bottled water service.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 543 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

BED1-DUP

1/5/2022<0.0020<0.0020

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020

GAC removed 02/02/2022 at owner's request. Permanent bottled water until owner declined bottled water service.
POST

8/4/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.017

0.018

<0.0020<0.00200.024

0.0063

0.063

0.050

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0067<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 10/27/2021.
PRE

8/4/2021

0.11

GAC installed 10/27/2021.

Location: 601-DUP

6/26/2023

0.0038<0.0020<0.0020

6/26/2023

0.0041<0.0020<0.0020

8/4/2021<0.0020<0.0020<0.0020

5/2/2022<0.0020<0.0020<0.0020

8/4/2021<0.0020<0.0020<0.0020

8/15/2022<0.0020<0.0020<0.0020

8/15/2022<0.0020<0.0020<0.0020

8/4/2021<0.0020<0.0020<0.0020

Location: 602

Location: 603-DUP

Location: 604
BED1

4/3/2024<0.0020<0.0020<0.0020BED1

1/9/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 544 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

10/4/2023<0.0020<0.0020<0.0020BED1

7/11/2023<0.0020<0.0020<0.0020PT

7/11/2023

0.049<0.0020<0.0020BED1

4/13/2023<0.0020<0.0020<0.0020BED1

1/9/2023<0.0020<0.0020<0.0020BED1

10/12/2022<0.0020<0.0020<0.0020BED1

7/5/2022<0.0020<0.0020<0.0020

BED1-DUP

7/5/2022<0.0020<0.0020<0.0020PT

7/5/2022

0.049<0.0020<0.0020

8/9/2021

0.049 J

0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.0026<0.00200.036 J

0.016

<0.0020<0.00200.0024<0.0020

0.036

0.016

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 05/11/2022.
-DUP

8/9/2021

0.049

GAC installed 05/11/2022.

Location: 605
8/9/2021

Location: 606
8/9/2021

Location: 607
8/9/2021

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 545 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

<0.0020<0.0020<0.00200.24

0.0042

0.010

0.058

<0.0020<0.0020

4/3/2023<0.0020<0.0020<0.0020

8/10/2021<0.0020<0.0020<0.0020

4/3/2023<0.0020<0.0020<0.0020

8/10/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 608
8/9/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0030<0.0020

0.056

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 609
4/8/2024

GAC installed 07/16/2024.
8/9/2021

Declined treatment offer.

Location: 610

Location: 611

Location: 612
POST

9/6/2022<0.0020<0.0020<0.0020PRE

9/6/2022<0.0020<0.0020<0.0020POST

8/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

8/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 546 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 613
PRE

9/6/2022<0.0020<0.0020<0.0020POST

9/6/2022<0.0020<0.0020<0.0020

8/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0028<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0065<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/28/2022<0.0020<0.0020<0.0020

8/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 614
8/10/2021

Location: 615

Location: 616
POST

6/12/2023<0.0020<0.0020<0.0020PRE

6/12/2023<0.0020<0.0020<0.0020POST

8/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

8/10/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 617
BED1

6/5/2024<0.0020<0.0020<0.0020BED1

1/30/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED110/25/2023<0.0020<0.0020<0.0020PT

8/8/2023

0.046<0.0020<0.0020BED1

8/8/2023<0.0020<0.0020<0.0020BED1

5/8/2023<0.0020<0.0020<0.0020BED1

2/1/2023<0.0020<0.0020<0.0020BED1

10/26/2022<0.0020<0.0020<0.0020BED1

8/2/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

PT

8/2/2022

0.044 J

<0.0020 UJ <0.0020 UJ

BED1

4/12/2022<0.0020<0.0020<0.0020BED1

1/18/2022<0.0020<0.0020<0.0020PRE

8/11/2021

0.035<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.023

0.012

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 11/04/2021.
POST

8/11/2021<0.0020

GAC installed 11/04/2021.

Location: 618-DUP

8/29/2022<0.0020<0.0020<0.0020

8/11/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/11/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

8/1/2022<0.0020<0.0020<0.0020

8/11/2021<0.0020<0.0020<0.0020

3/21/2022<0.0020<0.0020<0.0020

8/11/2021<0.00200.0033<0.0020

6/5/2023

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 619<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0023<0.0020<0.0020

6/5/2023

0.0026<0.0020<0.0020

8/16/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0075<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/20/2022<0.0020<0.0020<0.0020

8/16/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 620

Location: 621
8/11/2021

Location: 622-DUP

Location: 623

Location: 624
7/19/2022

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

8/16/2021<0.0020<0.0020<0.0020

8/1/2022<0.0020<0.0020<0.0020

8/1/2022<0.0020<0.0020<0.0020

8/16/2021<0.0020<0.0020

8/16/2021<0.0020

7/19/2022

8/16/2021

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.016<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.015

0.0026 J

0.0054<0.0020<0.0020<0.0020<0.00200.015

0.00750.00280.0047<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.015

0.00790.00300.0051<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 625

-DUP

-DUP

Location: 626

Location: 627
8/19/2021

Treatment incomplete/in progress - non-response to bottled water offer.
-DUP

8/19/2021

0.016

0.0027 J

0.0056<0.0020

Treatment incomplete/in progress - non-response to bottled water offer.

Location: 628
9/20/2022<0.0020<0.0020<0.0020-DUP

9/20/2022<0.0020<0.0020<0.0020-DUP

8/26/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/26/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

8/29/2022<0.0020<0.0020<0.0020

9/1/2021<0.0020<0.0020<0.0020

8/29/2022<0.0020<0.0020<0.0020

9/1/2021<0.0020<0.0020

9/1/2021<0.0020

9/26/2022

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 629<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/26/2022<0.0020<0.0020<0.0020

9/1/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/29/2022

0.0020<0.0020<0.0020

9/7/2021

0.0021<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.013

0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/7/2021

0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.013

0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 630-DUP

Location: 631-DUP

Location: 632-DUP

Location: 633
8/21/2023

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
-DUP

Date

PFOA

PFOS

PFNA

8/21/2023<0.0020<0.0020<0.0020

9/9/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020<0.0020<0.0020PFDA<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA<0.0020<0.0020

Location: 634
BED1

5/7/2024<0.0020<0.0020<0.0020BED1

1/22/2024<0.0020<0.0020<0.0020BED1

10/10/2023<0.0020<0.0020<0.0020BED1

7/19/2023<0.0020<0.0020<0.0020PT

7/19/2023

0.0035<0.0020<0.0020BED1

4/17/2023<0.0020<0.0020<0.0020BED1

1/25/2023<0.0020<0.0020<0.0020BED1

10/7/2022<0.0020<0.0020<0.0020

BED1-DUP

10/7/2022<0.0020<0.0020<0.0020BED1

7/13/2022<0.0020<0.0020<0.0020

BED1-DUP

7/13/2022<0.0020<0.0020<0.0020PT

7/13/2022

0.0023<0.0020<0.0020

BED1-DUP

4/13/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

BED1

4/13/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

1/19/2022<0.0020<0.0020<0.0020-DUP

9/9/2021

0.053<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.033

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.033

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/13/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/13/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/29/2022<0.0020<0.0020<0.0020

8/29/2022<0.0020<0.0020<0.0020

9/27/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/27/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 11/02/2021.
9/9/2021

0.054

GAC installed 11/02/2021.

Location: 635
9/9/2021

Location: 636-DUP

Location: 637

-DUP

-DUP

Location: 638
BED1

4/3/2024<0.0020<0.0020<0.0020BED1

1/9/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

10/4/2023<0.0020<0.0020<0.0020PT

7/21/2023

0.033

0.0055

0.011

BED1

7/21/2023<0.0020<0.0020<0.0020BED1

4/12/2023<0.0020<0.0020<0.0020

BED1

1/23/2023<0.0020<0.0020<0.0020BED1

10/13/2022<0.0020<0.0020<0.0020

BED1

7/20/2022<0.0020<0.0020<0.0020PT

7/20/2022

0.035

0.00500.0091BED1

4/19/2022<0.0020<0.0020<0.0020

10/7/2021

0.032

0.00980.0098<0.00200.00940.0095 J

0.0094<0.0020 UJ

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.0025<0.0020

0.015

0.012

<0.00200.0086 J

0.0024 J<0.0020 UJ 0.015

0.012

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020<0.0020

GAC installed 01/04/2022.
-DUP

10/7/2021

0.032

GAC installed 01/04/2022.

Location: 639
POST

3/20/2024<0.0020<0.0020<0.0020PRE

3/20/2024<0.0020<0.0020<0.0020POST

10/8/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

10/8/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 554 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PRE-DUP

10/8/2021<0.0020<0.0020<0.0020

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 640
BED1

4/3/2024<0.0020<0.0020<0.0020BED1

1/9/2024<0.0020<0.0020<0.0020BED1

10/4/2023<0.0020<0.0020<0.0020BED1

7/7/2023<0.0020<0.0020<0.0020PT

7/7/2023

0.041

0.00690.0020BED1

4/12/2023<0.0020<0.0020<0.0020

BED1

1/23/2023<0.0020<0.0020<0.0020-DUP

10/29/2021

0.042

0.0062<0.0020<0.0020<0.00200.0035<0.0020

0.031

0.015

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0060<0.0020<0.0020<0.00200.0033<0.0020

0.030

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 11/16/2022.
10/29/2021

0.040

GAC installed 11/16/2022.

Location: 641
BED1

4/9/2024<0.0020<0.0020<0.0020BED1

1/11/2024<0.0020<0.0020<0.0020BED1

10/10/2023<0.0020<0.0020<0.0020BED1

7/19/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

PT

7/19/2023

0.060<0.0020<0.0020

BED1-DUP

7/19/2023<0.0020<0.0020<0.0020BED1

4/17/2023<0.0020<0.0020<0.0020BED1

1/12/2023<0.0020<0.0020<0.0020BED1

10/7/2022<0.0020<0.0020<0.0020BED1

7/11/2022<0.0020<0.0020<0.0020

BED1-DUP

7/11/2022<0.0020<0.0020<0.0020PT

7/11/2022

0.063<0.0020<0.0020BED2

4/7/2022<0.0020<0.0020<0.0020BED1

4/7/2022

0.0021<0.0020<0.0020

10/29/2021

0.065<0.0020<0.0020

NEtFOSAA NMeFOSAA<0.0020<0.0020

PFBS<0.0020

PFHxS

PFHxA

PFHpA

<0.0020

0.034

0.016

PFDA

<0.0020

PFUnA<0.0020

PFDoA

PFTriA

PFTeA<0.0020<0.0020<0.0020

9Cl-PF3ONS<0.0020

11Cl-PF3OUd PFPeA<0.0020PFBA

HFPO-DA

ADONA<0.0020<0.0020

GAC installed 01/05/2022.

Location: 642
BED1

4/3/2024<0.0020<0.0020<0.0020BED1

1/9/2024<0.0020<0.0020<0.0020BED1

10/4/2023<0.0020<0.0020<0.0020PT

7/7/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 556 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED2

7/7/2023<0.0020<0.0020<0.0020BED1

7/7/2023

0.052

0.0061

0.011

BED1

4/12/2023<0.0020<0.0020<0.0020BED1

1/16/2023<0.0020<0.0020<0.0020BED1

10/13/2022<0.0020<0.0020<0.0020PT

8/3/2022<0.0020<0.0020<0.0020BED1

8/3/2022<0.0020<0.0020<0.0020BED1

5/3/2022<0.0020<0.0020<0.0020-DUP

11/12/2021

0.080

0.017 J

0.022

<0.0020 UJ<0.0020 UJ

0.013 J

0.017 J

<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

0.00240.00300.048 J

0.031 J

0.0035 J<0.00200.0023 J

0.0026 J

0.046 J

0.031 J

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0028 J<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/27/2022.
11/12/2021

0.097 J

GAC installed 01/27/2022.

Location: 643
POST

6/12/2023<0.0020<0.0020<0.0020PRE

6/12/2023<0.0020<0.0020<0.0020

POST

11/23/2021

0.0035<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.012

0.0024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

11/23/2021

0.00580.00220.0022<0.0020 UJ<0.0020<0.0020<0.00200.022

0.0042<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020<0.0020

PRE-DUP

11/23/2021

0.0053<0.0020 UJ 0.0020<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ 0.019

0.0038<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 557 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 644
BED1

4/3/2024<0.0020<0.0020<0.0020

BED1-DUP

4/3/2024<0.0020<0.0020<0.0020

BED1-DUP

1/9/2024<0.0020<0.0020<0.0020BED1

1/9/2024<0.0020<0.0020<0.0020BED1

10/4/2023<0.0020<0.0020<0.0020PT

7/7/2023

0.13

0.00540.0066

BED1-DUP

7/7/2023<0.0020<0.0020<0.0020BED1

7/7/2023<0.0020<0.0020<0.0020BED1

4/12/2023<0.0020<0.0020<0.0020

BED1-DUP

4/12/2023<0.0020<0.0020<0.0020BED1

1/16/2023<0.0020<0.0020<0.0020

BED1-DUP

1/16/2023<0.0020<0.0020<0.0020BED1

10/13/2022<0.0020<0.0020<0.0020PT

8/3/2022

0.12

0.00500.0064BED1

8/3/2022<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 558 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

5/3/2022

0.0023 J<0.0020 UJ <0.0020 UJ

BED2

5/3/2022<0.0020<0.0020<0.0020

12/8/2021

0.13

0.00230.0044<0.0020<0.00200.00240.0048<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.00200.00270.45

0.10<0.0020<0.0020<0.00200.0030

0.48

0.11

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0090<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0098<0.0020

GAC installed 01/11/2022.
-DUP

12/8/2021

0.14

GAC installed 01/11/2022.

Location: 645
4/8/2024<0.0020<0.0020<0.0020

12/8/2021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

1/20/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

1/20/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

2/27/2023<0.0020<0.0020<0.0020

1/26/2022<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

0.0027 J<0.0020 UJ

Location: 646-DUP

Location: 647

BED1

Replacement well. (Original well Regulatory Location ID #121).
1/26/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ

Replacement well. (Original well Regulatory Location ID #121).

Location: 648-DUP

5/20/2024<0.0020<0.0020<0.0020

5/20/2024<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 559 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

2/7/2022<0.0020<0.0020<0.0020<0.0020 UJ<0.0020

2/7/2022<0.0020<0.0020<0.0020<0.0020 UJ

7/1/2024<0.0020<0.0020<0.0020POST

2/7/2022<0.0020<0.0020PRE

2/7/2022<0.0020

-DUP

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/1/2024<0.0020<0.0020<0.0020<0.0020

2/14/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ

2/14/2022<0.0020<0.0020<0.0020

2/27/2023<0.0020<0.0020<0.0020

2/14/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020 UJ<0.0020<0.0020<0.0020<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 649

Location: 650
2/14/2022

Location: 651-DUP

Location: 652

Location: 653
POST

6/10/2024

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 560 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PRE

6/10/2024<0.0020<0.0020<0.0020

PRE-DUP

6/10/2024<0.0020<0.0020<0.0020PRE

2/14/2022<0.0020<0.0020<0.0020<0.0020<0.0020POST

2/14/2022<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.032

0.023

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 654
BED1

3/11/2024<0.0020<0.0020<0.0020BED1

12/14/2023<0.0020<0.0020<0.0020BED1

9/12/2023<0.0020<0.0020<0.0020PT

9/12/2023

0.080<0.0020<0.0020BED1

5/17/2023<0.0020<0.0020<0.0020BED1

3/2/2023<0.0020<0.0020<0.0020

BED1

12/20/2022<0.0020<0.0020<0.0020BED1

7/26/2022<0.0020<0.0020 UJ <0.0020

PT

7/26/2022

0.066<0.00200.00202/21/2022

0.069<0.0020<0.0020

GAC installed 04/19/2022.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 561 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

3/13/2023<0.0020<0.0020<0.0020-DUP

3/13/2023<0.0020<0.0020<0.0020-DUP

2/21/2022<0.0020<0.0020<0.0020<0.0020<0.0020

2/21/2022<0.0020<0.0020<0.0020<0.0020

6/3/2024<0.0020<0.0020<0.0020

6/3/2024<0.0020<0.0020<0.0020

2/28/2022<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 655

Location: 656-DUP

Location: 657
BED1

5/15/2024<0.0020<0.0020<0.0020

BED1-DUP

2/21/2024<0.0020<0.0020<0.0020

BED1

2/21/2024<0.0020<0.0020<0.0020BED1

11/8/2023<0.0020<0.0020<0.0020BED1

7/31/2023<0.0020<0.0020<0.0020PT

7/31/2023

0.33

0.019

0.064

BED1

4/26/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

BED1

2/6/2023<0.0020<0.0020<0.0020BED1

10/24/2022<0.0020<0.0020<0.0020-DUP

2/28/2022

0.39

0.021 J

0.071 J

<0.0020<0.00200.020 J

0.070 J

<0.0020

PFBS

PFHxS

PFHxA

PFHpA

0.0021 J

0.0063 J

0.68

0.20

<0.00200.0021 J

0.0062 J

0.56

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

0.052 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.00200.0066 J<0.0020 UJ

0.16

0.052 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.00200.0069 J<0.0020 UJ

GAC installed 09/29/2022.
2/28/2022

0.31

GAC installed 09/29/2022.

Location: 658-DUP

5/8/2023

0.0098<0.0020<0.0020

3/7/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020

3/7/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/21/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/21/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 659-DUP

Location: 660
3/21/2022

Location: 661-DUP

3/23/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

3/23/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA<0.0020<0.0020<0.0020<0.0020<0.0020

7/1/2024<0.0020<0.0020<0.0020<0.0020

3/28/2022<0.0020<0.0020<0.0020

3/28/2022<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 662
3/28/2022

Location: 663-DUP

Location: 664
4/25/2022

Location: 665
BED1

3/22/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

BED1

10/3/2022<0.0020 UJ <0.0020 UJ <0.0020 UJ-DUP

4/25/2022

0.076

0.00280.0096<0.0020<0.00200.0028<0.0020

0.051

0.035

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.00270.0089<0.0020<0.00200.0027<0.0020

0.049

0.033

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 08/17/2022.
4/25/2022

0.067

GAC installed 08/17/2022.

Location: 666-DUP

6/5/2023<0.0020<0.0020<0.0020

5/16/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/16/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA<0.0020<0.0020<0.0020<0.0020<0.0020

0.11 J

0.0031

0.023<0.0020

0.025

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.0064<0.0020<0.0020<0.00200.029<0.0020

0.052

0.030

<0.0020<0.00200.032<0.0020

0.054

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.030<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 667
5/23/2022

Location: 668
5/23/2022

Well not connected to the residence.
-DUP

5/23/2022

0.075 J

0.0031

Well not connected to the residence.

Location: 669-DUP

6/6/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/6/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0044<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.012

0.0033<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

4/10/2023<0.0020<0.0020<0.0020

4/10/2023<0.0020<0.0020<0.0020

7/5/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/5/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/11/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0025<0.0020

7/11/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 670
6/20/2022

Location: 671

-DUP

-DUP

Location: 672-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

0.094

<0.00200.0040 J

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 673
7/19/2022<0.0020<0.0020<0.0020<0.00200.072 J

0.040 J

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.052 J

0.041

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Treatment incomplete/in progress - bottled water.
-DUP

7/19/2022

0.070<0.00200.0042Treatment incomplete/in progress - bottled water.

Location: 674
4/3/2023<0.0020<0.0020<0.0020

7/19/2022<0.00200.0050<0.0020

Location: 675
POST

6/5/2023

0.0020<0.0020<0.0020PRE

6/5/2023

0.0020<0.0020<0.0020POST

7/19/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0030<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

7/19/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0029<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 676
PRE

7/26/2023<0.0020 UJ <0.0020 UJ <0.0020 UJ

PRE-DUP

7/26/2023<0.0020<0.0020<0.0020POST

7/26/2023<0.0020<0.0020<0.0020-DUP

7/28/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/28/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 677
POST

8/15/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

8/15/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/18/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/18/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.00200.013 J

0.0078 J<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020<0.0020

Location: 678-DUP

Location: 679
BED1

5/22/2024<0.0020<0.0020<0.0020BED1

2/29/2024<0.0020<0.0020<0.0020BED1

11/8/2023<0.0020<0.0020<0.0020BED1

8/16/2023<0.0020<0.0020<0.0020PT

8/16/2023

0.021

0.0022<0.0020BED1

5/18/2023<0.0020<0.0020<0.0020BED1

2/16/2023<0.0020<0.0020<0.0020BED1

11/2/2022<0.0020<0.0020<0.0020

Carbon Changeout 09/02/2022 - 5yr.
PT

8/17/2022

0.017 J

0.0029 J<0.0020

Replacement well. (Original well Regulatory Location ID #210). Qualified for treatment so GAC System transferred from original well to replacement well. GAC System installed 04/30/2018.
BED1

8/17/2022<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #210). Qualified for treatment so GAC System transferred from original well to replacement well. GAC System installed 04/30/2018.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 567 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 680
BED1

4/12/2024<0.0020<0.0020<0.0020BED1

1/16/2024<0.0020<0.0020<0.0020BED1

10/11/2023<0.0020<0.0020<0.0020BED1

7/25/2023<0.0020<0.0020<0.0020PT

7/25/2023

0.084

0.017

0.023

BED1

4/24/2023<0.0020<0.0020<0.0020BED1

1/16/2023<0.0020<0.0020<0.0020-DUP

8/29/2022

0.066

0.019

0.018

<0.0020<0.00200.0027<0.0020

0.067

0.038

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.019

0.018

<0.0020<0.00200.0026<0.00200.066 J

0.040

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 12/01/2022.
8/29/2022

0.058

GAC installed 12/01/2022.

Location: 681

BED1

7/18/2023<0.0020<0.0020<0.0020

9/8/2022<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #450).
PT

9/8/2022<0.0020<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #450).

Location: 682
POST

4/3/2023<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample
PRE

-DUP

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

4/3/2023<0.0020<0.0020<0.0020

9/12/2022<0.0020 UJ <0.0020<0.0020<0.0020 UJ<0.0020

9/12/2022<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020 UJ <0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 683
POST

3/23/2023<0.0020<0.0020<0.0020PRE

3/23/2023<0.0020<0.0020<0.0020

9/20/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

9/20/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0033<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/15/2023<0.0020<0.0020<0.0020

9/20/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0037<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

7/18/2023<0.0020<0.0020 UJ <0.0020

7/18/2023<0.0020<0.0020<0.0020

9/26/2022<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020-DUP

Location: 684

Location: 685-DUP

Replacement well. (Original well Regulatory Location ID #588).
-DUP

9/26/2022<0.0020<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #588).

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

4/15/2024<0.0020<0.0020<0.0020

4/15/2024<0.0020<0.0020<0.0020

1/17/2023<0.0020<0.0020<0.0020<0.0020<0.0020

1/17/2023<0.0020<0.0020<0.0020<0.0020

3/25/2024

0.0027<0.0020<0.0020

2/20/2023<0.0020<0.0020<0.00200.024<0.00200.024

3/7/2024

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0036<0.0020<0.0020

2/27/2023<0.0020<0.0020<0.0020<0.0020<0.0020

2/27/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.037

0.017

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.036

0.017

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0090<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0074<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 686

-DUP

-DUP

Location: 687

Location: 688
2/20/2023

Permanent bottled water.
-DUP

2/20/2023

Permanent bottled water.

Location: 689-DUP

Location: 690
2/27/2023

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/6/2023<0.0020<0.0020<0.0020

3/6/2023<0.0020<0.0020<0.0020

4/15/2024<0.0020<0.0020<0.0020

3/23/2023<0.0020<0.0020<0.0020

3/18/2024<0.0020<0.0020<0.0020

3/18/2024<0.0020<0.0020<0.0020

3/23/2023<0.0020<0.0020

3/23/2023<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 691
2/27/2023

Location: 692
2/27/2023

Location: 693-DUP

Location: 694

Location: 695

-DUP

-DUP

Location: 696
3/23/2023

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 571 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

4/3/2023<0.0020<0.0020<0.0020<0.0020<0.0020

4/3/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

2/21/2024<0.0020<0.0020<0.0020

2/21/2024<0.0020<0.0020<0.0020

4/10/2023<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 697-DUP

Location: 698
4/3/2023

Location: 699-DUP

Replacement well. (Original well Regulatory Location ID #99).
-DUP

4/10/2023<0.0020<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #99).

Location: 700
PRE

5/8/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PRE-DUP

5/8/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020POST

5/8/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/7/2024<0.0020<0.0020<0.0020

6/5/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

6/5/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 701-DUP

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 572 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

6/12/2023<0.0020<0.0020<0.0020<0.0020<0.0020

6/12/2023<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0090<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0045<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.00930.0045<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020 UJ 0.031 J

0.014 J

<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020<0.0020<0.0020

0.024

0.012

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.00310.0024

0.041

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 702-DUP

Location: 703
POST

3/25/2024<0.0020<0.0020<0.0020PRE

3/25/2024

0.0023<0.0020<0.0020

6/19/2023

0.010<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #466).
-DUP

6/19/2023

0.0099<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #466).

Location: 704
6/26/2023

0.036 J

<0.0020 UJ 0.0040 J

Treatment incomplete/in progress - bottled water.
-DUP

6/26/2023

0.029<0.00200.0031Treatment incomplete/in progress - bottled water.

Location: 705
BED1

4/9/2024<0.0020<0.0020<0.0020BED1

1/10/2024<0.0020<0.0020<0.0020BED1

9/13/2023<0.0020<0.0020<0.0020PT

9/13/2023

0.070

0.010

0.013

7/18/2023

0.059

0.00810.0083Replacement well. (Original well Regulatory Location ID #243). Qualified for treatment so GAC System transferred from original well to replacement well. GAC System installed 03/27/2018. Carbon Changeout

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

Page 573 of 578

Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

0.058

0.0040PFNA

NEtFOSAA NMeFOSAA

PFBS

PFHxS

PFHxA

PFHpA

PFDA

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA

Location: 706
7/18/2023

0.0063<0.0020<0.0020<0.0020<0.0020

0.041

0.027

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0058<0.0020 UJ<0.0020 UJ

0.00270.0023

0.042

0.027

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0058<0.0020<0.00200.0023<0.0020

0.039

0.027

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Building is vacant, treatment not offered.

Location: 707
7/18/2023

0.093 J

0.0064

Building is vacant, treatment not offered.
-DUP

7/18/2023

0.058 J

0.0057

Building is vacant, treatment not offered.

Location: 708
7/18/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/14/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/14/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

3/7/2024<0.0020<0.0020<0.0020

3/7/2024<0.0020<0.0020<0.0020

8/28/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

8/28/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.12

0.024

0.016

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 709-DUP

Location: 710

-DUP

-DUP

Location: 711
BED1

6/12/2024<0.0020<0.0020<0.0020-DUP

9/5/2023

0.019

0.023

0.011

GAC installed 01/10/2024.
Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

9/5/2023

0.020

0.025

0.012

<0.0020<0.0020<0.0020<0.0020<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020

0.10

0.025

0.020

<0.0020<0.0020<0.0020

0.046

0.023

<0.0020<0.0020<0.0020<0.00200.048<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.026<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.032

0.026

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.032

0.027

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

GAC installed 01/10/2024.

Location: 712
PRE

9/19/2023

0.054

Treatment incomplete/in progress - declined bottled water.
POST

9/19/2023

0.055<0.00200.0020Treatment incomplete/in progress - declined bottled water.

Location: 713
9/19/2023

0.061

0.0027

0.016

Treatment incomplete/in progress - bottled water.
-DUP

9/19/2023

0.065

0.0026

0.016

Treatment incomplete/in progress - bottled water.

Location: 714-DUP

3/7/2024<0.0020<0.0020<0.0020

10/24/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

10/24/2023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 715-DUP

2/12/2024<0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ <0.0020 UJ <0.0020 UJ <0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ<0.0020 UJ

2/12/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.047<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.038

0.023

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 716
POST

2/12/2024

Permanent bottled water.
PRE

2/12/2024

Permanent bottled water.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

3/12/2024<0.0020<0.0020<0.0020<0.0020<0.0020

3/12/2024<0.0020<0.0020<0.0020<0.00200.0040<0.0020<0.0020<0.0020<0.0020<0.0020

3/18/2024

3/18/2024

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 717-DUP

Location: 718
3/12/2024

Location: 719
3/12/2024

Location: 720
3/12/2024

Location: 721-DUP

Location: 722
POST

3/18/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020PRE

3/18/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.033

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.034

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 723
4/8/2024

Treatment incomplete/in progress - declined bottled water.
-DUP

4/8/2024

0.024<0.0020<0.0020

Treatment incomplete/in progress - declined bottled water.

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

4/15/2024<0.0020<0.0020<0.0020<0.0020<0.0020

4/15/2024<0.0020<0.0020<0.0020<0.00200.054<0.00200.0058<0.0020

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0032<0.00200.047

0.0077<0.0020<0.00200.0030<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.023<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.047

0.025

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 724-DUP

Location: 725
POST

4/22/2024

GAC installed 06/04/2024.
PRE

4/22/2024

0.052

GAC installed 06/04/2024.

Location: 726
6/17/2024

0.013<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.010

0.0060<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

4/29/2024

0.011<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.00640.0046<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Sample from this well location may be mislabeled. Confirmation sample collected 6/17/2024.

Location: 727
7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020-DUP

7/1/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020-DUP

4/29/2024

0.010 J

<0.0020<0.0020<0.0020<0.0020<0.0020<0.00200.0065 J

0.0046 J<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020 UJ<0.0020<0.0020

Sample from this well location may be mislabeled. Confirmation sample collected 7/1/2024.
4/29/2024<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Sample from this well location may be mislabeled. Confirmation sample collected 7/1/2024.

Location: 728-DUP

5/20/2024

0.027<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.030

0.012

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

5/20/2024

0.028<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.031

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

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Table 1. Residential Potable Well PFAS Results in the Vicinity of the Chemours Chambers Works,
Deepwater, New Jersey
Sample

Date

PFOA

PFOS

PFNA

NEtFOSAA NMeFOSAA

6/10/2024<0.0020<0.0020<0.0020<0.0020<0.0020

6/10/2024<0.0020<0.0020<0.0020<0.0020

6/17/2024<0.0020<0.0020<0.0020

6/17/2024<0.0020<0.0020<0.0020

6/25/2024<0.0020<0.0020<0.0020

6/6/2024

0.047

0.00490.0094

PFBS

PFHxS

PFHxA

PFHpA

PFDA

<0.0020<0.00200.0068<0.0020<0.0020<0.0020<0.0020<0.00200.00610.0021<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

PFUnA

PFDoA

PFTriA

PFTeA

9Cl-PF3ONS

11Cl-PF3OUd PFPeAPFBAHFPO-DA

ADONA<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

0.026

0.014

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Location: 729-DUP

Location: 730-DUP

Location: 731
BED1

Replacement well. (Original well Regulatory Location ID #475). Qualified for treatment so GAC System transferred from original well to replacement well. GAC System installed 11/09/2015. Carbon Changeout-DUP

6/6/2024

0.047

0.00470.0090<0.0020<0.0020<0.0020<0.0020

0.025

0.013

<0.0020<0.0020<0.0020<0.0020<0.0020<0.0020

Replacement well. (Original well Regulatory Location ID #475). Qualified for treatment so GAC System transferred from original well to replacement well. GAC System installed 11/09/2015. Carbon Changeout

Concentrations are in micrograms per liter (ug/L). Concentrations are rounded by the laboratory and reported to two significant figures. For samples collected prior to 10/1/2013, results for PFOA are reported under the following protocol: ND < LOD < NQ < LOQ where ND = Not Detected, NQ = Not
Quantifiable, LOD = Limit of Detection, LOQ = Limit of Quantitation; the LOD/LOQ may have varied by instrument and quarter. For samples collected after 10/1/2013, samples are reported to a reporting limit (RL) of 0.0050 ug/L for PFOA. For samples collected after 6/30/2016, each target compound RL is
0.0020 ug/L. J = Analyte present, reported value may not be accurate or precise; UJ = Not detected, reporting limit may not be accurate or precise; B = Not detected substantially above the level reported in the laboratory or field blanks. Samples identified as BED1 were collected after the first carbon bed.
Samples identified as BED2 were collected after the second carbon bed and represent the treated water. All other samples collected were prior to Chemours treatment. Samples identified with -D or -DUP are duplicate samples. Starting with the 3Q20 samples, the samples are analyzed by USEPA Method
537.1. Prior to 3Q20, the samples were analyzed by a modified method 537. QREP = Qualification Re-Evaluation Program. OMM = Operation, Maintenance, and Monitoring. PWS = Public Water Service. NJDEP = New Jersey Department of Environmental Protection.

8/1/2024

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