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
MS0170001 , Belmont Water Association
24 of the 58 analytes this system has been tested for have been detected at least once, across 260 samples on record.
The other 34 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 260 samples on record, detections range from August 24, 1993 to November 19, 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 | 112 of 145 results | Aug 24, 1993 | Aug 21, 2025 |
| Lead 1030 | Inorganic Chemical | 55 of 145 results | Aug 24, 1993 | Jul 7, 2022 |
| Barium 1010 | Inorganic Chemical | 12 of 12 results | Apr 16, 2002 | Feb 4, 2025 |
| Fluoride 1025 | Inorganic Chemical | 12 of 12 results | Apr 16, 2002 | Feb 4, 2025 |
| TTHM 2950 | Organic Chemical | 10 of 25 results | May 17, 2004 | Nov 19, 2025 |
| Nitrate 1040 | Inorganic Chemical | 7 of 23 results | May 3, 2004 | Apr 13, 2021 |
| Dibromochloromethane 2944 | Organic Chemical | 6 of 19 results | Aug 30, 2011 | Nov 19, 2025 |
| Chromium 1020 | Inorganic Chemical | 6 of 12 results | Apr 16, 2002 | Oct 2, 2018 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 25 results | Jul 9, 2007 | Jul 25, 2018 |
| Nickel 1036 | Inorganic Chemical | 6 of 12 results | Apr 16, 2002 | Apr 16, 2014 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 5 of 23 results | Mar 21, 2016 | Apr 13, 2021 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 8, 2011 | Jul 19, 2012 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 23, 2019 | Oct 14, 2024 |
| Bromodichloromethane 2943 | Organic Chemical | 3 of 19 results | Aug 30, 2011 | Feb 28, 2024 |
| Selenium 1045 | Inorganic Chemical | 3 of 12 results | Jan 26, 2004 | Jan 23, 2006 |
| Bromoform 2942 | Organic Chemical | 2 of 19 results | Nov 25, 2024 | Nov 25, 2024 |
| Dichloroacetic Acid 2451 | Organic Chemical | 2 of 17 results | Aug 30, 2011 | Aug 20, 2014 |
| Cadmium 1015 | Inorganic Chemical | 2 of 12 results | Mar 2, 2005 | Jan 23, 2006 |
| Sulfate 1055 | Inorganic Chemical | 2 of 3 results | Sep 10, 2003 | Jan 26, 2004 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 17 results | Jul 25, 2018 | Jul 25, 2018 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 18 results | Jul 18, 2012 | Jul 18, 2012 |
| Thallium, Total 1085 | Inorganic Chemical | 1 of 12 results | Nov 28, 2011 | Nov 28, 2011 |
| Chloroform 2941 | Organic Chemical | 1 of 19 results | Aug 30, 2011 | Aug 30, 2011 |
| Arsenic 1005 | Inorganic Chemical | 1 of 12 results | Apr 2, 2008 | Apr 2, 2008 |
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 21–21 of 21 samples, newest first — collected October 14, 2024 to October 14, 2024. The summary above covers all 21.
1 result from the 1 sample listed here: 1 detected, 0 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 |
|---|---|---|
|
||
| 10 mg/l , sample collected Oct 14, 2024 14:00, sampling point TF080 | Sodium 1052 EPA method 200.7 | Jan 1, 2022 – Dec 31, 2024 |
-
- Collected
- Oct 14, 2024 14:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- NA-241015-031
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Sodium 1052 EPA method 200.7
- Result
- 10 mg/l
Routine (1).