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.
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 |
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 91–100 of 692 samples, newest first — collected November 22, 2022 to March 7, 2023. The summary above covers all 692.
30 results from the 10 samples listed here: 13 detected, 17 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 26 ug/l , sample collected Mar 7, 2023 15:25, sampling point SMT | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2023 – Mar 31, 2023 |
|
||
| 32.4 ug/l , sample collected Mar 7, 2023 15:10, sampling point SMH | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2023 – Mar 31, 2023 |
|
||
| 52.9 ug/l , sample collected Mar 7, 2023 15:25, sampling point SMT | TTHM 2950 EPA method 524.2 | Jan 1, 2023 – Mar 31, 2023 |
|
||
| 38.2 ug/l , sample collected Mar 7, 2023 15:10, sampling point SMH | TTHM 2950 EPA method 524.2 | Jan 1, 2023 – Mar 31, 2023 |
|
||
| 10.2 ug/l , sample collected Dec 27, 2022 18:15, sampling point SMT | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| 11.3 ug/l , sample collected Dec 27, 2022 18:20, sampling point SMH | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2022 – Dec 31, 2022 |
|
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| 34.4 ug/l , sample collected Dec 27, 2022 18:05, sampling point SMT | TTHM 2950 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| 35.4 ug/l , sample collected Dec 27, 2022 18:20, sampling point SMH | TTHM 2950 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Arsenic 1005 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.00617 mg/l , sample collected Nov 22, 2022 19:00, sampling point TF105 | Barium 1010 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Cadmium 1015 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Chromium 1020 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.313 mg/l , sample collected Nov 22, 2022 19:00, sampling point TF105 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Mercury 1035 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Selenium 1045 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 19:00, sampling point TF105 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 18:40, sampling point TF104 | Arsenic 1005 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.0107 mg/l , sample collected Nov 22, 2022 18:40, sampling point TF104 | Barium 1010 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 18:40, sampling point TF104 | Cadmium 1015 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.00145 mg/l , sample collected Nov 22, 2022 18:40, sampling point TF104 | Chromium 1020 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.328 mg/l , sample collected Nov 22, 2022 18:40, sampling point TF104 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 18:40, sampling point TF104 | Mercury 1035 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 18:40, sampling point TF104 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 18:40, sampling point TF104 | Selenium 1045 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 18:40, sampling point TF104 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 18:40, sampling point TF104 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 22, 2022 18:40, sampling point TF104 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
-
- Collected
- Mar 7, 2023 15:25
- Sampling point
- SMT Superintendent's Office
- Sample type
- Routine
- Lab sample
- HA-230308-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Mar 31, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 26 ug/l
-
- Collected
- Mar 7, 2023 15:10
- Sampling point
- SMH Unit 29
- Sample type
- Routine
- Lab sample
- HA-230308-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Mar 31, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 32.4 ug/l
-
- Collected
- Mar 7, 2023 15:25
- Sampling point
- SMT Superintendent's Office
- Sample type
- Routine
- Lab sample
- TH-230308-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Mar 31, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 52.9 ug/l
-
- Collected
- Mar 7, 2023 15:10
- Sampling point
- SMH Unit 29
- Sample type
- Routine
- Lab sample
- TH-230308-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Mar 31, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 38.2 ug/l
-
- Collected
- Dec 27, 2022 18:15
- Sampling point
- SMT Superintendent's Office
- Sample type
- Routine
- Lab sample
- HA-221228-002
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 10.2 ug/l
-
- Collected
- Dec 27, 2022 18:20
- Sampling point
- SMH Unit 29
- Sample type
- Routine
- Lab sample
- HA-221228-001
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 11.3 ug/l
-
- Collected
- Dec 27, 2022 18:05
- Sampling point
- SMT Superintendent's Office
- Sample type
- Routine
- Lab sample
- TH-221228-002
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
TTHM 2950 EPA method 524.2
- Result
- 34.4 ug/l
-
- Collected
- Dec 27, 2022 18:20
- Sampling point
- SMH Unit 29
- Sample type
- Routine
- Lab sample
- TH-221228-001
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
TTHM 2950 EPA method 524.2
- Result
- 35.4 ug/l
-
- Collected
- Nov 22, 2022 19:00
- Sampling point
- TF105 Treatment Plant T105
- Sample type
- Routine
- Lab sample
- IN-221123-002
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Barium 1010 EPA method 200.8
- Result
- 0.00617 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.313 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
- Collected
- Nov 22, 2022 18:40
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- IN-221123-003
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Barium 1010 EPA method 200.8
- Result
- 0.0107 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Chromium 1020 EPA method 200.8
- Result
- 0.00145 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.328 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
Routine (10).