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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

MS0670014 , MS State Penitentiary-MN Ln

29 of the 57 analytes this system has been tested for have been detected at least once, across 692 samples on record.

The other 28 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 692 samples on record, detections range from October 27, 2003 to April 6, 2026. These figures cover the whole record; the list of samples further down is narrowed.

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 MS State Penitentiary-MN Ln, 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 390 of 392 results Jun 3, 2004 Sep 28, 2025
Lead 1030 Inorganic Chemical 280 of 392 results Jun 3, 2004 Sep 28, 2025
TTHM 2950 Organic Chemical 40 of 41 results Aug 16, 2004 Oct 28, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 37 of 42 results Sep 13, 2007 Apr 6, 2026
Barium 1010 Inorganic Chemical 37 of 37 results Oct 27, 2003 May 5, 2025
Fluoride 1025 Inorganic Chemical 37 of 37 results Oct 27, 2003 May 5, 2025
Chromium 1020 Inorganic Chemical 29 of 37 results Oct 27, 2003 May 5, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 20 of 21 results Mar 29, 2012 Oct 23, 2012
Chloroform 2941 Organic Chemical 16 of 16 results Oct 3, 2007 May 28, 2024
Bromodichloromethane 2943 Organic Chemical 15 of 16 results Oct 3, 2007 May 28, 2024
Dichloroacetic Acid 2451 Organic Chemical 14 of 16 results Jun 4, 2008 Apr 6, 2026
Trichloroacetic Acid 2452 Organic Chemical 14 of 16 results Jun 4, 2008 Apr 6, 2026
Dibromochloromethane 2944 Organic Chemical 14 of 16 results Oct 3, 2007 May 28, 2024
Selenium 1045 Inorganic Chemical 13 of 37 results Apr 26, 2005 May 5, 2025
Dibromoacetic Acid 2454 Organic Chemical 11 of 16 results Sep 4, 2008 Apr 6, 2026
Arsenic 1005 Inorganic Chemical 10 of 37 results Apr 26, 2005 May 5, 2025
Nickel 1036 Inorganic Chemical 10 of 37 results Apr 26, 2005 May 5, 2025
Bromoform 2942 Organic Chemical 6 of 16 results Sep 4, 2008 Dec 19, 2017
Monobromoacetic Acid 2453 Organic Chemical 4 of 16 results Jun 17, 2009 Apr 6, 2026
Sodium 1052 Inorganic Chemical 4 of 4 results Dec 11, 2023 Dec 11, 2023
Monochloroacetic Acid 2450 Organic Chemical 4 of 16 results Jun 17, 2009 Nov 28, 2017
Cadmium 1015 Inorganic Chemical 3 of 37 results Apr 26, 2005 Apr 26, 2005
Mercury 1035 Inorganic Chemical 2 of 33 results Apr 26, 2005 Apr 26, 2005
Thallium, Total 1085 Inorganic Chemical 2 of 37 results Apr 26, 2005 Apr 26, 2005
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 21 results Apr 6, 2020 Apr 6, 2020
Radium-226 4020 Radionuclide 1 of 21 results Apr 6, 2020 Apr 6, 2020
Radium-228 4030 Radionuclide 1 of 21 results Apr 6, 2020 Apr 6, 2020
Cyanide 1024 Inorganic Chemical 1 of 36 results Sep 11, 2013 Sep 11, 2013
Beryllium, Total 1075 Inorganic Chemical 1 of 37 results Apr 26, 2005 Apr 26, 2005

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 11–17 of 17 samples, newest first — collected October 28, 2024 to September 28, 2025. The summary above covers all 17.

28 results from the 7 samples listed here: 18 detected, 10 not detected. 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 MS State Penitentiary-MN Ln, every result from 11 to 17 of 17 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
Sep 28, 2025 09:50
Sampling point
LC010 Location withheld
Sample type
Routine
Lab sample
PB-251001-060
Laboratory
MSDH Lab
0.195 mg/l , sample collected Sep 28, 2025 09:50, sampling point LC010 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
0.6 ug/l , sample collected Sep 28, 2025 09:50, sampling point LC010 Lead 1030 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
May 5, 2025 18:50
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
IN-250506-004
Laboratory
MSDH Lab
0.0034 mg/l , sample collected May 5, 2025 18:50, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0319 mg/l , sample collected May 5, 2025 18:50, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 18:50, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0012 mg/l , sample collected May 5, 2025 18:50, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.334 mg/l , sample collected May 5, 2025 18:50, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 18:50, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0006 mg/l , sample collected May 5, 2025 18:50, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
0.0035 mg/l , sample collected May 5, 2025 18:50, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 18:50, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 18:50, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 18:50, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
May 5, 2025 06:40
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250506-003
Laboratory
MSDH Lab
0.0033 mg/l , sample collected May 5, 2025 06:40, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.032 mg/l , sample collected May 5, 2025 06:40, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 06:40, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0013 mg/l , sample collected May 5, 2025 06:40, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.335 mg/l , sample collected May 5, 2025 06:40, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 06:40, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0006 mg/l , sample collected May 5, 2025 06:40, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.0033 mg/l , sample collected May 5, 2025 06:40, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 06:40, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 06:40, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 5, 2025 06:40, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Oct 28, 2024 16:35
Sampling point
SMT Superintendent's Office
Sample type
Routine
Lab sample
TH-241029-004
Laboratory
MSDH Lab
66.9 ug/l , sample collected Oct 28, 2024 16:35, sampling point SMT TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 28, 2024 17:00
Sampling point
SMH Unit 29
Sample type
Routine
Lab sample
TH-241029-003
Laboratory
MSDH Lab
44.6 ug/l , sample collected Oct 28, 2024 17:00, sampling point SMH TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 28, 2024 16:35
Sampling point
SMT Superintendent's Office
Sample type
Routine
Lab sample
HA-241029-004
Laboratory
MSDH Lab
38.7 ug/l , sample collected Oct 28, 2024 16:35, sampling point SMT Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 28, 2024 17:00
Sampling point
SMH Unit 29
Sample type
Routine
Lab sample
HA-241029-003
Laboratory
MSDH Lab
48.5 ug/l , sample collected Oct 28, 2024 17:00, sampling point SMH Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024

Routine (7).