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.
| 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.
Choose a date range
The most recent samples, result by result
The table below lists 1–10 of 17 samples, newest first — collected September 28, 2025 to April 6, 2026. The summary above covers all 17.
24 results from the 10 samples listed here: 23 detected, 1 not detected. Across the whole record it is 1,017 of 2,369. 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 9 sampling points 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Apr 6, 2026 08:00, sampling point SMT | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 2.2 ug/l , sample collected Apr 6, 2026 08:00, sampling point SMT | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 1.9 ug/l , sample collected Apr 6, 2026 08:00, sampling point SMT | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| 1.6 ug/l , sample collected Apr 6, 2026 08:00, sampling point SMT | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 13 ug/l , sample collected Apr 6, 2026 08:00, sampling point SMT | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 18.7 ug/l , sample collected Apr 6, 2026 08:00, sampling point SMT | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
|
||
| 0.0258 mg/l , sample collected Sep 28, 2025 08:30, sampling point LC001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 2.6 ug/l , sample collected Sep 28, 2025 08:30, sampling point LC001 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.0267 mg/l , sample collected Sep 28, 2025 08:40, sampling point LC002 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.8 ug/l , sample collected Sep 28, 2025 08:40, sampling point LC002 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.027 mg/l , sample collected Sep 28, 2025 08:40, sampling point LC003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 28, 2025 08:40, sampling point LC003 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.0543 mg/l , sample collected Sep 28, 2025 08:50, sampling point LC004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 28, 2025 08:50, sampling point LC004 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.464 mg/l , sample collected Sep 28, 2025 09:00, sampling point LC005 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.6 ug/l , sample collected Sep 28, 2025 09:00, sampling point LC005 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.0177 mg/l , sample collected Sep 28, 2025 09:10, sampling point LC006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 4.5 ug/l , sample collected Sep 28, 2025 09:10, sampling point LC006 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.172 mg/l , sample collected Sep 28, 2025 09:20, sampling point LC007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 1.1 ug/l , sample collected Sep 28, 2025 09:20, sampling point LC007 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.0741 mg/l , sample collected Sep 28, 2025 09:30, sampling point LC008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.6 ug/l , sample collected Sep 28, 2025 09:30, sampling point LC008 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.0131 mg/l , sample collected Sep 28, 2025 09:40, sampling point LC009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.6 ug/l , sample collected Sep 28, 2025 09:40, sampling point LC009 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
-
- Collected
- Apr 6, 2026 08:00
- Sampling point
- SMT Superintendent's Office
- Sample type
- Routine
- Lab sample
- 810-186760-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
- Monitoring period
- Not recorded
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 2.2 ug/l
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 1.9 ug/l
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- 1.6 ug/l
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 13 ug/l
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 18.7 ug/l
-
- Collected
- Sep 28, 2025 08:30
- Sampling point
- LC001 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-051
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0258 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2.6 ug/l
-
- Collected
- Sep 28, 2025 08:40
- Sampling point
- LC002 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-052
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0267 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.8 ug/l
-
- Collected
- Sep 28, 2025 08:40
- Sampling point
- LC003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-053
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.027 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 28, 2025 08:50
- Sampling point
- LC004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-054
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0543 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 28, 2025 09:00
- Sampling point
- LC005 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-055
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.464 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Sep 28, 2025 09:10
- Sampling point
- LC006 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-056
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0177 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 4.5 ug/l
-
- Collected
- Sep 28, 2025 09:20
- Sampling point
- LC007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-057
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.172 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.1 ug/l
-
- Collected
- Sep 28, 2025 09:30
- Sampling point
- LC008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-058
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0741 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Sep 28, 2025 09:40
- Sampling point
- LC009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-059
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0131 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
Routine (10).