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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

MS0340010 , M & M Water Association

22 of the 58 analytes this system has been tested for have been detected at least once, across 565 samples on record.

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 565 samples on record, detections range from September 24, 2003 to December 15, 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 M & M 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 140 of 140 results Aug 27, 2007 Sep 30, 2024
Lead 1030 Inorganic Chemical 125 of 140 results Aug 27, 2007 Sep 30, 2024
Barium 1010 Inorganic Chemical 46 of 46 results Sep 24, 2003 Mar 5, 2025
Fluoride 1025 Inorganic Chemical 34 of 46 results Sep 24, 2003 Mar 5, 2025
Gross Alpha Particle Activity 4109 Radionuclide 20 of 20 results Aug 29, 2011 Jan 16, 2013
Sodium 1052 Inorganic Chemical 15 of 15 results Sep 19, 2019 Mar 5, 2025
Xylenes, Total 2955 Organic Chemical 15 of 150 results Sep 11, 2013 Aug 9, 2017
Chromium 1020 Inorganic Chemical 11 of 46 results Sep 24, 2003 Mar 25, 2020
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 10 of 18 results Sep 23, 2009 Dec 15, 2025
TTHM 2950 Organic Chemical 10 of 19 results Jun 16, 2004 Dec 15, 2025
Sulfate 1055 Inorganic Chemical 8 of 8 results Sep 24, 2003 Feb 25, 2004
Chloroform 2941 Organic Chemical 6 of 14 results Aug 15, 2007 Dec 15, 2025
Bromodichloromethane 2943 Organic Chemical 6 of 14 results Aug 15, 2007 Dec 15, 2025
Trichloroacetic Acid 2452 Organic Chemical 5 of 14 results Sep 5, 2012 Dec 15, 2025
Ethylbenzene 2992 Organic Chemical 5 of 150 results Sep 11, 2013 Nov 3, 2015
Dichloroacetic Acid 2451 Organic Chemical 4 of 14 results Sep 5, 2012 Dec 15, 2025
Carbon Tetrachloride 2982 Organic Chemical 4 of 150 results Aug 9, 2017 Aug 9, 2017
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Jun 15, 2020 Jun 15, 2020
Monochloroacetic Acid 2450 Organic Chemical 1 of 14 results Aug 14, 2018 Aug 14, 2018
Dibromochloromethane 2944 Organic Chemical 1 of 14 results Sep 5, 2012 Sep 5, 2012
Nickel 1036 Inorganic Chemical 1 of 46 results Mar 23, 2005 Mar 23, 2005
Dichloromethane 2964 Organic Chemical 1 of 150 results Aug 16, 2004 Aug 16, 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 511–520 of 565 samples, newest first — collected March 23, 2005 to February 13, 2006. The summary above covers all 565.

28 results from the 10 samples listed here: 3 detected, 25 not detected. Across the whole record it is 469 of 4,571. 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 M & M Water Association, every result from 511 to 520 of 565 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 13, 2006
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
060214-001CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Aug 10, 2005
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
050811-109NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF105 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF105 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF105 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050811-074NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050811-069NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 10, 2005
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
050811-075NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 10, 2005, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Mar 23, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050324-051CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 23, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050324-050CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 23, 2005
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
050324-048CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 23, 2005
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
050324-049CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF105 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 23, 2005
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
050324-007IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.013625 mg/l , sample collected Mar 23, 2005, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000506 mg/l , sample collected Mar 23, 2005, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.285919 mg/l , sample collected Mar 23, 2005, sampling point TF104 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 23, 2005, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007

Routine (10).