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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

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 181–190 of 312 samples, newest first — collected July 27, 2005 to February 15, 2006. The summary above covers all 312.

56 results from the 10 samples listed here: 15 detected, 41 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.

Chemical and radiological sample results for The Chemours Company FC, LLC, every result from 181 to 190 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
Feb 15, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060216-037CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 15, 2006, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 15, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060216-036CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 15, 2006, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 15, 2006
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
060216-038CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 15, 2006, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 13, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060214-014IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.016945 mg/l , sample collected Feb 13, 2006, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000855 mg/l , sample collected Feb 13, 2006, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.216214 mg/l , sample collected Feb 13, 2006, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
0.000706 mg/l , sample collected Feb 13, 2006, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF103 Uranium-238 4009 Not recorded
Collected
Feb 13, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060214-017IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.014254 mg/l , sample collected Feb 13, 2006, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001083 mg/l , sample collected Feb 13, 2006, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.252111 mg/l , sample collected Feb 13, 2006, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Uranium-238 4009 Not recorded
Collected
Feb 13, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060214-015IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.014961 mg/l , sample collected Feb 13, 2006, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001063 mg/l , sample collected Feb 13, 2006, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.264611 mg/l , sample collected Feb 13, 2006, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Uranium-238 4009 Not recorded
Collected
Feb 13, 2006
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
060214-016IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.019716 mg/l , sample collected Feb 13, 2006, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.206839 mg/l , sample collected Feb 13, 2006, sampling point TF104 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
0.000842 mg/l , sample collected Feb 13, 2006, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Uranium-238 4009 Not recorded
Collected
Oct 26, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051027-019HA
Laboratory
MSDH Lab
0.019 mg/l , sample collected Oct 26, 2005, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2005
Collected
Oct 26, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
051027-019TH
Laboratory
MSDH Lab
45.7 ug/l , sample collected Oct 26, 2005, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2005
Collected
Jul 27, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050728-141NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 27, 2005, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 27, 2005, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 27, 2005, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005

Routine (10).