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
MS0060018 , Town of Shaw
27 of the 58 analytes this system has been tested for have been detected at least once, across 344 samples on record.
The other 31 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 344 samples on record, detections range from October 14, 1993 to December 16, 2025. 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 | 158 of 170 results | Oct 14, 1993 | Sep 30, 2025 |
| Lead 1030 | Inorganic Chemical | 98 of 170 results | Oct 14, 1993 | Sep 30, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 19 of 22 results | Jun 28, 2007 | Dec 16, 2025 |
| TTHM 2950 | Organic Chemical | 18 of 22 results | Jun 28, 2007 | Dec 16, 2025 |
| Barium 1010 | Inorganic Chemical | 18 of 18 results | Jun 25, 2002 | Feb 12, 2025 |
| Fluoride 1025 | Inorganic Chemical | 17 of 18 results | Jun 25, 2002 | Feb 12, 2025 |
| Chloroform 2941 | Organic Chemical | 15 of 17 results | Jun 28, 2007 | Dec 16, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 14 of 16 results | Jul 16, 2008 | Dec 16, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 14 of 16 results | Jul 16, 2008 | Dec 16, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 14 of 17 results | Jun 28, 2007 | Dec 16, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 9 of 17 results | Jun 28, 2007 | May 7, 2025 |
| P-Dichlorobenzene 2969 | Organic Chemical | 9 of 51 results | Oct 14, 2004 | Dec 4, 2013 |
| Chromium 1020 | Inorganic Chemical | 8 of 18 results | Jun 25, 2002 | Jan 10, 2024 |
| Nitrite 1041 | Inorganic Chemical | 6 of 35 results | Dec 4, 2013 | Jan 18, 2017 |
| Nickel 1036 | Inorganic Chemical | 5 of 18 results | Jan 18, 2006 | Jan 10, 2024 |
| Selenium 1045 | Inorganic Chemical | 5 of 18 results | Feb 14, 2005 | Jan 10, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 6 results | Dec 6, 2011 | Jul 13, 2012 |
| Sodium 1052 | Inorganic Chemical | 4 of 4 results | Sep 30, 2019 | Jan 21, 2021 |
| Arsenic 1005 | Inorganic Chemical | 3 of 18 results | Mar 12, 2008 | May 4, 2022 |
| Bromoform 2942 | Organic Chemical | 3 of 17 results | Jun 28, 2007 | Jul 12, 2011 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 2 of 35 results | Jan 18, 2017 | Jan 18, 2017 |
| Nitrate 1040 | Inorganic Chemical | 2 of 35 results | Jan 18, 2017 | Jan 18, 2017 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 16 results | Jul 16, 2008 | Jul 12, 2011 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 16 results | Apr 17, 2019 | Apr 17, 2019 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 1 of 1 result | Dec 3, 2013 | Dec 3, 2013 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 51 results | Oct 21, 2010 | Oct 21, 2010 |
| Carbon Tetrachloride 2982 | Organic Chemical | 1 of 51 results | Mar 20, 2007 | Mar 20, 2007 |
Showing samples collected between September 26, 2024 and September 26, 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 21–24 of 24 samples, newest first — collected February 12, 2025 to March 12, 2025. The summary above covers all 24.
18 results from the 4 samples listed here: 3 detected, 15 not detected. 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 |
|---|---|---|
|
||
| 34.6 ug/l , sample collected Mar 12, 2025 14:40, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2025 – Dec 31, 2025 |
|
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:15, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0018 mg/l , sample collected Feb 12, 2025 13:15, sampling point TF103 | Barium 1010 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:15, sampling point TF103 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:15, sampling point TF103 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.21 mg/l , sample collected Feb 12, 2025 13:15, sampling point TF103 | 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 Feb 12, 2025 13:15, sampling point TF103 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:15, sampling point TF103 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:15, sampling point TF103 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:15, sampling point TF103 | 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 Feb 12, 2025 13:15, sampling point TF103 | 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 Feb 12, 2025 13:15, sampling point TF103 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 14:02, sampling point TF104 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 14:02, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 14:02, sampling point TF104 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:40, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:40, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 12, 2025 13:40, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
-
- Collected
- Mar 12, 2025 14:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-250314-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
TTHM 2950 EPA method 524.2
- Result
- 34.6 ug/l
-
- Collected
- Feb 12, 2025 13:15
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- IN-250213-035
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Barium 1010 EPA method 200.8
- Result
- 0.0018 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.21 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
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, 2023 – Dec 31, 2025
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
- Collected
- Feb 12, 2025 14:02
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- NI-250213-034
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
- Feb 12, 2025 13:40
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NI-250213-033
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
Routine (4).