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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.

Every analyte ever detected for Town of Belmont, with how many results found it and when it was first and last detected. Covers the whole record, not only 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 11–20 of 319 samples, newest first — collected August 13, 2024 to August 25, 2025. The summary above covers all 319.

56 results from the 10 samples listed here: 12 detected, 44 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.

We withheld the location of 6 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.

Chemical and radiological sample results for Town of Belmont, every result from 11 to 20 of 319 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Aug 25, 2025 05:30
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-250826-006
Laboratory
MSDH Lab
0.00219 mg/l , sample collected Aug 25, 2025 05:30, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2025 05:30, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Aug 25, 2025 06:15
Sampling point
LC0017 Location withheld
Sample type
Routine
Lab sample
PB-250826-009
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2025 06:15, sampling point LC0017 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2025 06:15, sampling point LC0017 Lead 1030 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Aug 25, 2025 07:15
Sampling point
LC0020 Location withheld
Sample type
Routine
Lab sample
PB-250826-007
Laboratory
MSDH Lab
0.000563 mg/l , sample collected Aug 25, 2025 07:15, sampling point LC0020 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2025 07:15, sampling point LC0020 Lead 1030 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Aug 25, 2025 07:00
Sampling point
LC0025 Location withheld
Sample type
Routine
Lab sample
PB-250826-008
Laboratory
MSDH Lab
0.00108 mg/l , sample collected Aug 25, 2025 07:00, sampling point LC0025 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2025 07:00, sampling point LC0025 Lead 1030 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Aug 21, 2025 12:40
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-161115-3
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 12:40, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2025 – Sep 30, 2025
Collected
Aug 21, 2025 13:30
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-161115-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:30, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:30, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:30, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:30, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:30, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:30, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
0.56 ug/l , sample collected Aug 21, 2025 13:30, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:30, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
0.51 ug/l , sample collected Aug 21, 2025 13:30, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:30, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.07 ug/l , sample collected Aug 21, 2025 13:30, sampling point SM2 TTHM 2950 EPA method 524.2 Jul 1, 2025 – Sep 30, 2025
Collected
Aug 21, 2025 13:11
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-161115-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2025 – Sep 30, 2025
0.57 ug/l , sample collected Aug 21, 2025 13:11, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2025 13:11, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0.57 ug/l , sample collected Aug 21, 2025 13:11, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2025 – Sep 30, 2025
Collected
Apr 14, 2025 13:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-250415-003
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 14, 2025 13:15, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 14, 2025 13:15, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 14, 2025 13:15, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 31, 2025 12:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250401-033
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 31, 2025 12:30, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0408 mg/l , sample collected Mar 31, 2025 12:30, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 31, 2025 12:30, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0008 mg/l , sample collected Mar 31, 2025 12:30, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 31, 2025 12:30, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
0.0023 mg/l , sample collected Mar 31, 2025 12:30, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 31, 2025 12:30, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 31, 2025 12:30, sampling point TF080 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 Mar 31, 2025 12:30, sampling point TF080 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 Mar 31, 2025 12:30, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Aug 13, 2024 06:15
Sampling point
LC0025 Location withheld
Sample type
Routine
Lab sample
PB-240814-080
Laboratory
MSDH Lab
0.0021 mg/l , sample collected Aug 13, 2024 06:15, sampling point LC0025 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 06:15, sampling point LC0025 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024

Routine (10).