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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 181–190 of 474 samples, newest first — collected February 5, 2013 to February 19, 2014. The summary above covers all 474.

45 results from the 10 samples listed here: 20 detected, 25 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 181 to 190 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
Feb 19, 2014 13:50
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
140220-038NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 19, 2014 13:50, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 19, 2014 13:50, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 19, 2014 13:50, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Jul 18, 2013 12:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130719-001TH
Laboratory
MSDH Lab
52.4 ug/l , sample collected Jul 18, 2013 12:10, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 18, 2013 12:10, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
10 ug/l , sample collected Jul 18, 2013 12:10, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.01 ug/l , sample collected Jul 18, 2013 12:10, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
64 ug/l , sample collected Jul 18, 2013 12:10, sampling point MRT000 TTHM 2950 EPA method 524.2 Jul 1, 2013 – Sep 30, 2013
Collected
Jul 18, 2013 12:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130719-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 18, 2013 12:10, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.021 mg/l , sample collected Jul 18, 2013 12:10, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.028 mg/l , sample collected Jul 18, 2013 12:10, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.028 mg/l , sample collected Jul 18, 2013 12:10, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 18, 2013 12:10, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.077 mg/l , sample collected Jul 18, 2013 12:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jul 1, 2013 – Sep 30, 2013
Collected
Apr 18, 2013 03:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130419-005HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Apr 18, 2013 03:05, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.019 mg/l , sample collected Apr 18, 2013 03:05, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.013 mg/l , sample collected Apr 18, 2013 03:05, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 18, 2013 03:05, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 18, 2013 03:05, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.032 mg/l , sample collected Apr 18, 2013 03:05, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Apr 1, 2013 – Jun 30, 2013
Collected
Apr 18, 2013 03:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130419-005TH
Laboratory
MSDH Lab
39.5 ug/l , sample collected Apr 18, 2013 03:05, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 18, 2013 03:05, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
6.4 ug/l , sample collected Apr 18, 2013 03:05, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.22 ug/l , sample collected Apr 18, 2013 03:05, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
47.1 ug/l , sample collected Apr 18, 2013 03:05, sampling point MRT000 TTHM 2950 EPA method 524.2 Apr 1, 2013 – Jun 30, 2013
Collected
Feb 14, 2013 01:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130215-013TH
Laboratory
MSDH Lab
7.46 ug/l , sample collected Feb 14, 2013 01:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 14, 2013 01:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 14, 2013 01:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 14, 2013 01:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
7.46 ug/l , sample collected Feb 14, 2013 01:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2013 – Mar 31, 2013
Collected
Feb 14, 2013 01:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130215-018HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Feb 14, 2013 01:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Feb 14, 2013 01:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Feb 14, 2013 01:30, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 14, 2013 01:30, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 14, 2013 01:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.011 mg/l , sample collected Feb 14, 2013 01:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2013 – Mar 31, 2013
Collected
Feb 5, 2013 02:10
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
130206-008NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:10, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:10, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:10, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Feb 5, 2013 02:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
130206-002NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:20, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:20, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:20, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Feb 5, 2013 02:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130206-001NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:05, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:05, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2013 02:05, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013

Routine (10).