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
MS0710001 , Town of Belmont
17 of the 57 analytes this system has been tested for have been detected at least once, across 319 samples on record.
The other 40 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 319 samples on record, detections range from October 29, 2003 to November 18, 2025. 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 | 226 of 229 results | Aug 16, 2007 | Aug 25, 2025 |
| Lead 1030 | Inorganic Chemical | 116 of 229 results | Aug 16, 2007 | Aug 25, 2025 |
| TTHM 2950 | Organic Chemical | 11 of 20 results | Aug 23, 2004 | Nov 18, 2025 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Oct 29, 2003 | Mar 31, 2025 |
| Nickel 1036 | Inorganic Chemical | 7 of 10 results | Oct 29, 2003 | Mar 31, 2025 |
| Chloroform 2941 | Organic Chemical | 6 of 15 results | Aug 22, 2016 | Nov 18, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 5 of 21 results | Sep 10, 2007 | Jul 8, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 17, 2012 |
| Chromium 1020 | Inorganic Chemical | 2 of 10 results | Oct 29, 2003 | Mar 31, 2025 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Sep 17, 2019 | Mar 27, 2023 |
| Bromodichloromethane 2943 | Organic Chemical | 1 of 15 results | Aug 21, 2025 | Aug 21, 2025 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 15 results | Oct 27, 2020 | Oct 27, 2020 |
| Nitrite 1041 | Inorganic Chemical | 1 of 21 results | May 18, 2020 | May 18, 2020 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 7 results | Sep 6, 2016 | Sep 6, 2016 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 15 results | Aug 22, 2016 | Aug 22, 2016 |
| Selenium 1045 | Inorganic Chemical | 1 of 10 results | Mar 1, 2010 | Mar 1, 2010 |
| Cadmium 1015 | Inorganic Chemical | 1 of 10 results | Oct 29, 2003 | Oct 29, 2003 |
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 171–180 of 319 samples, newest first — collected June 14, 2011 to June 25, 2012. The summary above covers all 319.
25 results from the 10 samples listed here: 8 detected, 17 not detected. Across the whole record it is 397 of 993. 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 |
|---|---|---|
|
||
| 0.1079 mg/l , sample collected Jun 25, 2012, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2012, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| 0.4 pci/l , sample collected Apr 23, 2012 14:00, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.254 pci/l Minimum Reporting Level , sample collected Apr 23, 2012 14:00, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.254 pci/l Minimum Reporting Level , sample collected Apr 23, 2012 14:00, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.22 pci/l Minimum Reporting Level , sample collected Apr 23, 2012 14:00, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 23, 2012 14:10, sampling point TF080 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 11:30, sampling point TF080 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 11:30, sampling point TF080 | Nitrate 1040 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 2, 2012 11:30, sampling point TF080 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| 0.4 pci/l , sample collected Feb 13, 2012 14:00, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.254 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 14:00, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.254 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 14:00, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.22 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 14:00, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2012 14:00, sampling point TF080 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| 0.4 pci/l , sample collected Dec 12, 2011 02:00, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.254 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 02:00, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.254 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 02:00, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.22 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 02:00, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| 0.0088 mg/l , sample collected Sep 8, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 8, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2011 |
|
||
| 0.086 mg/l , sample collected Jun 14, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 14, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2011 |
|
||
| 0.0056 mg/l , sample collected Jun 14, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2011 |
| 0.0009 mg/l , sample collected Jun 14, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2011 |
-
- Collected
- Jun 25, 2012
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 120627-001PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1079 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 23, 2012 14:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120424-138
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.4 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.254 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.254 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.22 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 23, 2012 14:10
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120424-138RU
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 2, 2012 11:30
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120403-030NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Feb 13, 2012 14:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120214-004
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.4 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.254 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.254 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.22 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Feb 13, 2012 14:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120214-004RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Dec 12, 2011 02:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 111213-086
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.4 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.254 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.254 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.22 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Sep 8, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110909-018PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0088 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 14, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110615-099PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.086 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 14, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110615-098PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0056 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0009 mg/l
Routine (10).