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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

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.

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 Belmont Water Association, 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 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

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 51–60 of 260 samples, newest first — collected January 21, 2020 to January 11, 2022. The summary above covers all 260.

40 results from the 10 samples listed here: 7 detected, 33 not detected. Across the whole record it is 264 of 1,122. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Belmont Water Association, every result from 51 to 60 of 260 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
Jan 11, 2022 13:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-220112-024
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 11, 2022 13:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 11, 2022 13:00, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 11, 2022 13:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
May 3, 2021 12:45
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-210504-003
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 3, 2021 12:45, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Collected
Apr 20, 2021 12:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-210421-006
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 20, 2021 12:15, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Apr 13, 2021 14:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-210414-047
Laboratory
MSDH Lab
0.101 mg/l , sample collected Apr 13, 2021 14:15, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
0.101 mg/l , sample collected Apr 13, 2021 14:15, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 13, 2021 14:15, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Feb 1, 2021 13:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-210204-053
Laboratory
MSDH Lab
8.53 mg/l , sample collected Feb 1, 2021 13:45, sampling point TF080 Sodium 1052 EPA method 200.7 Not recorded
Collected
Jan 20, 2021 11:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-210121-003
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 11:30, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0204 mg/l , sample collected Jan 20, 2021 11:30, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 11:30, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 11:30, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.92 mg/l , sample collected Jan 20, 2021 11:30, sampling point TF080 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 Jan 20, 2021 11:30, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 11:30, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 11:30, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 11:30, sampling point TF080 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 Jan 20, 2021 11:30, sampling point TF080 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 Jan 20, 2021 11:30, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Nov 9, 2020 12:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
201110-016HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Nov 9, 2020 12:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 9, 2020 12:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 9, 2020 12:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 9, 2020 12:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 9, 2020 12:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Nov 9, 2020 12:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
May 7, 2020 13:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200508-004HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
May 7, 2020 13:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200508-004TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected May 7, 2020 13:30, sampling point MRT000 TTHM 2950 Jan 1, 2020 – Dec 31, 2020
Collected
Jan 21, 2020 14:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
200122-040NI
Laboratory
MSDH Lab
0.12 mg/l , sample collected Jan 21, 2020 14:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
0.12 mg/l , sample collected Jan 21, 2020 14:00, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 21, 2020 14:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020

Routine (10).