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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

MS0070017 , Mt Comfort W/A-Sarepta

25 of the 57 analytes this system has been tested for have been detected at least once, across 264 samples on record.

The other 32 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 264 samples on record, detections range from September 22, 1993 to April 20, 2026. 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 Mt Comfort W/A-Sarepta, 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 57 of 74 results Sep 22, 1993 Jun 4, 2025
Lead 1030 Inorganic Chemical 48 of 74 results Sep 22, 1993 Jun 26, 2019
Barium 1010 Inorganic Chemical 24 of 24 results Jul 2, 2002 Jan 13, 2025
Fluoride 1025 Inorganic Chemical 23 of 23 results Jul 2, 2002 Jan 13, 2025
Selenium 1045 Inorganic Chemical 22 of 24 results Jul 2, 2002 Jan 13, 2025
TTHM 2950 Organic Chemical 21 of 24 results Jun 25, 2007 Apr 20, 2026
Nickel 1036 Inorganic Chemical 21 of 24 results Jul 2, 2002 Jan 13, 2025
Bromoform 2942 Organic Chemical 17 of 18 results Jul 11, 2011 Apr 20, 2026
Arsenic 1005 Inorganic Chemical 17 of 24 results Jul 2, 2002 Jan 13, 2025
Chromium 1020 Inorganic Chemical 15 of 24 results Jul 2, 2002 Jan 13, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 15 of 15 results Dec 7, 2011 Mar 23, 2016
Combined Radium (-226 & -228) 4010 Radionuclide 10 of 15 results Dec 7, 2011 Mar 23, 2016
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 26 results Jun 25, 2007 Apr 7, 2025
Radium-226 4020 Radionuclide 9 of 15 results Dec 7, 2011 Dec 8, 2015
Dibromochloromethane 2944 Organic Chemical 8 of 18 results Dec 6, 2023 Aug 4, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 18, 2019 Oct 15, 2024
Radium-228 4030 Radionuclide 4 of 15 results Sep 15, 2014 Mar 23, 2016
Bromodichloromethane 2943 Organic Chemical 2 of 18 results May 13, 2024 May 13, 2024
Cadmium 1015 Inorganic Chemical 2 of 24 results Feb 16, 2005 May 3, 2022
Thallium, Total 1085 Inorganic Chemical 2 of 24 results Dec 11, 2013 May 3, 2022
Dibromoacetic Acid 2454 Organic Chemical 2 of 19 results Sep 6, 2017 Jun 6, 2019
Antimony, Total 1074 Inorganic Chemical 1 of 24 results May 3, 2022 May 3, 2022
Beryllium, Total 1075 Inorganic Chemical 1 of 24 results May 3, 2022 May 3, 2022
Dichloroacetic Acid 2451 Organic Chemical 1 of 19 results Aug 13, 2014 Aug 13, 2014
Monobromoacetic Acid 2453 Organic Chemical 1 of 19 results Aug 13, 2014 Aug 13, 2014

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 181–190 of 264 samples, newest first — collected July 17, 2007 to March 10, 2008. The summary above covers all 264.

36 results from the 10 samples listed here: 20 detected, 16 not detected. Across the whole record it is 338 of 1,342. 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 Mt Comfort W/A-Sarepta, every result from 181 to 190 of 264 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
Mar 10, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
080311-084IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.19345 mg/l , sample collected Mar 10, 2008, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.18 mg/l , sample collected Mar 10, 2008, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.002792 mg/l , sample collected Mar 10, 2008, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
0.002161 mg/l , sample collected Mar 10, 2008, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Mar 10, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080311-083IN
Laboratory
MSDH Lab
0.001532 mg/l , sample collected Mar 10, 2008, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.317831 mg/l , sample collected Mar 10, 2008, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.156 mg/l , sample collected Mar 10, 2008, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.003148 mg/l , sample collected Mar 10, 2008, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.00434 mg/l , sample collected Mar 10, 2008, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Mar 10, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080311-082CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Mar 10, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
080311-069CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 10, 2008, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-365PB
Laboratory
MSDH Lab
0.0106 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0015 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-419PB
Laboratory
MSDH Lab
0.0921 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0006 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-418PB
Laboratory
MSDH Lab
0.0282 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0032 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-348PB
Laboratory
MSDH Lab
0.026 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-407PB
Laboratory
MSDH Lab
0.0411 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0018 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 17, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070718-420PB
Laboratory
MSDH Lab
0.3908 mg/l , sample collected Jul 17, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.003 mg/l , sample collected Jul 17, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).