Chemical and radiological sample results

MS0240232 , The Chemours Company FC, LLC

23 of the 53 analytes this system has been tested for have been detected at least once, across 312 samples on record.

The other 30 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 312 samples on record, detections range from December 22, 1993 to July 27, 2026. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Every analyte ever detected for The Chemours Company FC, LLC, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte	Kind	Detected in	First detected	Last detected
Copper, Free 1022	Inorganic Chemical	130 of 147 results	Dec 22, 1993	Jul 27, 2026
Lead 1030	Inorganic Chemical	126 of 147 results	Dec 22, 1993	Jul 27, 2026
TTHM 2950	Organic Chemical	31 of 31 results	Jun 23, 2004	Dec 10, 2025
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	30 of 30 results	Jun 23, 2004	Jun 15, 2026
Barium 1010	Inorganic Chemical	22 of 22 results	Sep 15, 2003	Feb 13, 2025
Fluoride 1025	Inorganic Chemical	22 of 22 results	Sep 15, 2003	Feb 13, 2025
Chloroform 2941	Organic Chemical	21 of 21 results	Oct 31, 2006	Dec 10, 2025
Bromodichloromethane 2943	Organic Chemical	21 of 21 results	Oct 31, 2006	Dec 10, 2025
Dibromochloromethane 2944	Organic Chemical	21 of 21 results	Oct 31, 2006	Dec 10, 2025
Bromoform 2942	Organic Chemical	20 of 21 results	Oct 31, 2006	Dec 10, 2025
Dichloroacetic Acid 2451	Organic Chemical	18 of 18 results	Jun 30, 2008	Jun 15, 2026
Trichloroacetic Acid 2452	Organic Chemical	18 of 18 results	Jun 30, 2008	Jun 15, 2026
Dibromoacetic Acid 2454	Organic Chemical	18 of 18 results	Jun 30, 2008	Jun 15, 2026
Chromium 1020	Inorganic Chemical	15 of 22 results	Sep 15, 2003	Apr 26, 2022
Sulfate 1055	Inorganic Chemical	8 of 8 results	Sep 15, 2003	Mar 1, 2004
Selenium 1045	Inorganic Chemical	6 of 22 results	Mar 9, 2005	Feb 13, 2006
Monochloroacetic Acid 2450	Organic Chemical	5 of 18 results	Oct 5, 2009	Aug 16, 2017
Cadmium 1015	Inorganic Chemical	4 of 22 results	Sep 15, 2003	Mar 9, 2005
Arsenic 1005	Inorganic Chemical	2 of 22 results	Apr 7, 2008	Apr 26, 2022
Nickel 1036	Inorganic Chemical	2 of 22 results	Sep 15, 2003	Apr 7, 2008
Sodium 1052	Inorganic Chemical	1 of 1 result	Feb 22, 2021	Feb 22, 2021
Xylenes, Total 2955	Organic Chemical	1 of 26 results	Mar 1, 2007	Mar 1, 2007
Thallium, Total 1085	Inorganic Chemical	1 of 22 results	Sep 15, 2003	Sep 15, 2003

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 21–30 of 312 samples, newest first — collected June 27, 2023 to November 25, 2024. The summary above covers all 312.

53 results from the 10 samples listed here: 42 detected, 11 not detected. Across the whole record it is 543 of 1,457. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 1 sampling point below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for The Chemours Company FC, LLC, every result from 21 to 30 of 312 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result	Analyte	Monitoring period
Collected Nov 25, 2024 07:38 Sampling point SM1 BLDG 565 Sample type Routine Lab sample 810-129606-2 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 25, 2024 07:38, sampling point SM1	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
6.9 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
5.3 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 25, 2024 07:38, sampling point SM1	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
4.3 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
16.5 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Oct 1, 2024 – Dec 31, 2024
9.7 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	Chloroform 2941 EPA method 524.2	Not recorded
2.7 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	Bromoform 2942 EPA method 524.2	Not recorded
14 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	Bromodichloromethane 2943 EPA method 524.2	Not recorded
16 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	Dibromochloromethane 2944 EPA method 524.2	Not recorded
42.4 ug/l , sample collected Nov 25, 2024 07:38, sampling point SM1	TTHM 2950 EPA method 524.2	Oct 1, 2024 – Dec 31, 2024
Collected Nov 25, 2024 08:04 Sampling point SM2 BLDG 548 Sample type Routine Lab sample 810-129606-1 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 25, 2024 08:04, sampling point SM2	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
7 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
5.2 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 25, 2024 08:04, sampling point SM2	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
3.9 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
16.1 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Oct 1, 2024 – Dec 31, 2024
10 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	Chloroform 2941 EPA method 524.2	Not recorded
2.8 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	Bromoform 2942 EPA method 524.2	Not recorded
15 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	Bromodichloromethane 2943 EPA method 524.2	Not recorded
16 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	Dibromochloromethane 2944 EPA method 524.2	Not recorded
43.8 ug/l , sample collected Nov 25, 2024 08:04, sampling point SM2	TTHM 2950 EPA method 524.2	Oct 1, 2024 – Dec 31, 2024
Collected Oct 1, 2024 07:07 Sampling point SM1 BLDG 565 Sample type Routine Lab sample 810-122439-2 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 07:07, sampling point SM1	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
5.6 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
4.3 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 07:07, sampling point SM1	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
4.2 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
14.1 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Oct 1, 2024 – Dec 31, 2024
9.9 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	Chloroform 2941 EPA method 524.2	Not recorded
3.6 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	Bromoform 2942 EPA method 524.2	Not recorded
15 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	Bromodichloromethane 2943 EPA method 524.2	Not recorded
18 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	Dibromochloromethane 2944 EPA method 524.2	Not recorded
46.5 ug/l , sample collected Oct 1, 2024 07:07, sampling point SM1	TTHM 2950 EPA method 524.2	Oct 1, 2024 – Dec 31, 2024
Collected Oct 1, 2024 06:40 Sampling point SM2 BLDG 548 Sample type Routine Lab sample 810-122439-1 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 06:40, sampling point SM2	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
5.7 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
4.2 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 06:40, sampling point SM2	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
4.2 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
14.1 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Oct 1, 2024 – Dec 31, 2024
12 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	Chloroform 2941 EPA method 524.2	Not recorded
3.6 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	Bromoform 2942 EPA method 524.2	Not recorded
17 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	Bromodichloromethane 2943 EPA method 524.2	Not recorded
19 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	Dibromochloromethane 2944 EPA method 524.2	Not recorded
51.6 ug/l , sample collected Oct 1, 2024 06:40, sampling point SM2	TTHM 2950 EPA method 524.2	Oct 1, 2024 – Dec 31, 2024
Collected Mar 27, 2024 12:35 Sampling point SM2 Building 548 Sample type Routine Lab sample HA-240328-036 Laboratory MSDH Lab
12.8 ug/l , sample collected Mar 27, 2024 12:35, sampling point SM2	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Mar 27, 2024 12:10 Sampling point SM1 Building 565 Sample type Routine Lab sample HA-240328-035 Laboratory MSDH Lab
11.9 ug/l , sample collected Mar 27, 2024 12:10, sampling point SM1	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Mar 27, 2024 12:30 Sampling point SM2 Building 548 Sample type Routine Lab sample TH-240328-036 Laboratory MSDH Lab
40 ug/l , sample collected Mar 27, 2024 12:30, sampling point SM2	TTHM 2950 EPA method 524.2	Not recorded
Collected Mar 27, 2024 12:14 Sampling point SM1 Building 565 Sample type Routine Lab sample TH-240328-035 Laboratory MSDH Lab
39.2 ug/l , sample collected Mar 27, 2024 12:14, sampling point SM1	TTHM 2950 EPA method 524.2	Not recorded
Collected Feb 5, 2024 13:20 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample NI-240206-008 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 13:20, sampling point TF101	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 13:20, sampling point TF101	Nitrate 1040 EPA method QC10107041C	Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 13:20, sampling point TF101	Nitrite 1041 EPA method QC10107041C	Jan 1, 2024 – Dec 31, 2024
Collected Jun 27, 2023 05:55 Sampling point LC0014 Location withheld Sample type Routine Lab sample PB-230628-010 Laboratory MSDH Lab
0.0109 mg/l , sample collected Jun 27, 2023 05:55, sampling point LC0014	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
3 ug/l , sample collected Jun 27, 2023 05:55, sampling point LC0014	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023

Collected
Nov 25, 2024 07:38

Sampling point
SM1 BLDG 565

Sample type
Routine

Lab sample
810-129606-2

Laboratory
Eurofins Eaton Analytical South Bend in
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  6.9 ug/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  5.3 ug/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  4.3 ug/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  16.5 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
- Chloroform 2941 EPA method 524.2
  
  Result
  9.7 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  2.7 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  14 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  16 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  42.4 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
Collected
Nov 25, 2024 08:04

Sampling point
SM2 BLDG 548

Sample type
Routine

Lab sample
810-129606-1

Laboratory
Eurofins Eaton Analytical South Bend in
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  7 ug/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  5.2 ug/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  3.9 ug/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  16.1 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
- Chloroform 2941 EPA method 524.2
  
  Result
  10 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  2.8 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  15 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  16 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  43.8 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
Collected
Oct 1, 2024 07:07

Sampling point
SM1 BLDG 565

Sample type
Routine

Lab sample
810-122439-2

Laboratory
Eurofins Eaton Analytical South Bend in
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  5.6 ug/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  4.3 ug/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  4.2 ug/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  14.1 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
- Chloroform 2941 EPA method 524.2
  
  Result
  9.9 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  3.6 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  15 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  18 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  46.5 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
Collected
Oct 1, 2024 06:40

Sampling point
SM2 BLDG 548

Sample type
Routine

Lab sample
810-122439-1

Laboratory
Eurofins Eaton Analytical South Bend in
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  5.7 ug/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  4.2 ug/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  4.2 ug/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  14.1 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
- Chloroform 2941 EPA method 524.2
  
  Result
  12 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  3.6 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  17 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  19 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  51.6 ug/l
  
  Monitoring period
  Oct 1, 2024 – Dec 31, 2024
Collected
Mar 27, 2024 12:35

Sampling point
SM2 Building 548

Sample type
Routine

Lab sample
HA-240328-036

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  12.8 ug/l
Collected
Mar 27, 2024 12:10

Sampling point
SM1 Building 565

Sample type
Routine

Lab sample
HA-240328-035

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  11.9 ug/l
Collected
Mar 27, 2024 12:30

Sampling point
SM2 Building 548

Sample type
Routine

Lab sample
TH-240328-036

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  40 ug/l
Collected
Mar 27, 2024 12:14

Sampling point
SM1 Building 565

Sample type
Routine

Lab sample
TH-240328-035

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  39.2 ug/l
Collected
Feb 5, 2024 13:20

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
NI-240206-008

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2024 – Dec 31, 2024
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Jun 27, 2023 05:55

Sampling point
LC0014 Location withheld

Sample type
Routine

Lab sample
PB-230628-010

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0109 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  3 ug/l

Routine (10).