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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

MS0280001 , Town of Mayersville

29 of the 57 analytes this system has been tested for have been detected at least once, across 474 samples on record.

The other 28 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 474 samples on record, detections range from December 13, 1993 to December 3, 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 Mayersville, 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 92 of 96 results Dec 13, 1993 Jul 12, 2023
TTHM 2950 Organic Chemical 74 of 79 results Jun 7, 2004 Dec 3, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 72 of 80 results Jun 7, 2004 Dec 3, 2025
Lead 1030 Inorganic Chemical 60 of 96 results Dec 13, 1993 Jul 12, 2023
Chloroform 2941 Organic Chemical 37 of 42 results May 15, 2006 Dec 17, 2019
Dichloroacetic Acid 2451 Organic Chemical 34 of 38 results Oct 11, 2007 Dec 15, 2020
Trichloroacetic Acid 2452 Organic Chemical 31 of 38 results Oct 11, 2007 Dec 15, 2020
Bromodichloromethane 2943 Organic Chemical 31 of 42 results May 15, 2006 Dec 17, 2019
Barium 1010 Inorganic Chemical 28 of 28 results Sep 16, 2003 Dec 3, 2025
Fluoride 1025 Inorganic Chemical 28 of 28 results Sep 16, 2003 Dec 3, 2025
Chromium 1020 Inorganic Chemical 20 of 28 results Sep 16, 2003 Dec 3, 2025
Monochloroacetic Acid 2450 Organic Chemical 16 of 38 results Feb 7, 2008 Jun 27, 2018
Dibromochloromethane 2944 Organic Chemical 13 of 42 results Aug 14, 2006 Dec 17, 2019
Selenium 1045 Inorganic Chemical 12 of 28 results Apr 12, 2004 Apr 16, 2008
Arsenic 1005 Inorganic Chemical 10 of 28 results Apr 12, 2004 Dec 3, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 15 results Mar 8, 2012 Oct 2, 2012
Nickel 1036 Inorganic Chemical 7 of 28 results Mar 14, 2005 Oct 15, 2019
P-Dichlorobenzene 2969 Organic Chemical 6 of 66 results Aug 30, 2007 Dec 4, 2008
Xylenes, Total 2955 Organic Chemical 6 of 66 results Jul 27, 2004 Oct 17, 2006
Monobromoacetic Acid 2453 Organic Chemical 5 of 38 results Feb 7, 2008 Dec 15, 2020
Carbon Tetrachloride 2982 Organic Chemical 5 of 66 results Oct 26, 2004 Jun 19, 2007
Ethylbenzene 2992 Organic Chemical 5 of 66 results Jul 27, 2004 Oct 26, 2004
Nitrite 1041 Inorganic Chemical 3 of 66 results Apr 24, 2024 Apr 24, 2024
O-Dichlorobenzene 2968 Organic Chemical 3 of 66 results Sep 11, 2018 Sep 11, 2018
Sodium 1052 Inorganic Chemical 2 of 2 results Mar 16, 2021 Feb 14, 2024
Dibromoacetic Acid 2454 Organic Chemical 2 of 38 results Feb 7, 2008 Dec 19, 2019
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 66 results May 27, 2008 May 27, 2008
Nitrate 1040 Inorganic Chemical 2 of 66 results May 27, 2008 May 27, 2008
Cyanide 1024 Inorganic Chemical 1 of 30 results Apr 12, 2004 Apr 12, 2004

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 161–170 of 474 samples, newest first — collected July 17, 2014 to April 6, 2015. The summary above covers all 474.

38 results from the 10 samples listed here: 10 detected, 28 not detected. Across the whole record it is 617 of 2,714. 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 Town of Mayersville, every result from 161 to 170 of 474 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
Apr 6, 2015 01:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
150407-008IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0125 mg/l , sample collected Apr 6, 2015 01:30, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0103 mg/l , sample collected Apr 6, 2015 01:30, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.61 mg/l , sample collected Apr 6, 2015 01:30, sampling point TF102 Fluoride 1025 EPA method 300.0 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Apr 6, 2015 01:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150407-007IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0126 mg/l , sample collected Apr 6, 2015 01:30, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0104 mg/l , sample collected Apr 6, 2015 01:30, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.59 mg/l , sample collected Apr 6, 2015 01:30, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 01:30, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Feb 11, 2015 14:09
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
150212-046NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:09, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:09, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:09, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Feb 11, 2015 14:13
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
150212-045NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:13, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:13, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:13, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Feb 11, 2015 14:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150212-043NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:05, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:05, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 11, 2015 14:05, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Aug 25, 2014 12:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
140826-030CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 25, 2014 12:20, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Aug 25, 2014 12:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
140826-020CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 25, 2014 12:10, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Aug 25, 2014 12:20
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
140826-010CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 25, 2014 12:20, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jul 18, 2014 08:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140718-037PB
Laboratory
MSDH Lab
0.3303 mg/l , sample collected Jul 18, 2014 08:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.001 mg/l , sample collected Jul 18, 2014 08:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 17, 2014 06:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140718-048PB
Laboratory
MSDH Lab
0.5037 mg/l , sample collected Jul 17, 2014 06:35, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0011 mg/l , sample collected Jul 17, 2014 06:35, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014

Routine (10).