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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 561–565 of 565 samples, newest first — collected April 9, 2002 to September 24, 2003. The summary above covers all 565.

76 results from the 5 samples listed here: 3 detected, 73 not detected. 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 561 to 565 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
Sep 24, 2003
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
030925-023IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Arsenic 1005 EPA method 200.8 Not recorded
0.005 mg/l , sample collected Sep 24, 2003, sampling point TF102 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Cadmium 1015 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Sep 24, 2003, sampling point TF102 Chromium 1020 EPA method 200.8 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Selenium 1045 EPA method 200.8 Not recorded
8.4 mg/l , sample collected Sep 24, 2003, sampling point TF102 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2003, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
Apr 23, 2002
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
020424-013VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 1,2,4-Trichlorobenzene 2378 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Cis-1,2-Dichloroethylene 2380 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Xylenes, Total 2955 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Dichloromethane 2964 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 O-Dichlorobenzene 2968 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 P-Dichlorobenzene 2969 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Vinyl Chloride 2976 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 1,1-Dichloroethylene 2977 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Trans-1,2-Dichloroethylene 2979 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 1,2-Dichloroethane 2980 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 1,1,1-Trichloroethane 2981 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Carbon Tetrachloride 2982 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 1,2-Dichloropropane 2983 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Trichloroethylene 2984 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 1,1,2-Trichloroethane 2985 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Tetrachloroethylene 2987 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Chlorobenzene 2989 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Benzene 2990 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Toluene 2991 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Ethylbenzene 2992 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF104 Styrene 2996 Not recorded
Collected
Apr 23, 2002
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
020424-012VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 1,2,4-Trichlorobenzene 2378 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Cis-1,2-Dichloroethylene 2380 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Xylenes, Total 2955 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Dichloromethane 2964 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 O-Dichlorobenzene 2968 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 P-Dichlorobenzene 2969 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Vinyl Chloride 2976 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 1,1-Dichloroethylene 2977 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Trans-1,2-Dichloroethylene 2979 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 1,2-Dichloroethane 2980 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 1,1,1-Trichloroethane 2981 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Carbon Tetrachloride 2982 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 1,2-Dichloropropane 2983 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Trichloroethylene 2984 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 1,1,2-Trichloroethane 2985 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Tetrachloroethylene 2987 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Chlorobenzene 2989 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Benzene 2990 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Toluene 2991 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Ethylbenzene 2992 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF103 Styrene 2996 Not recorded
Collected
Apr 23, 2002
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
020424-011VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 1,2,4-Trichlorobenzene 2378 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Cis-1,2-Dichloroethylene 2380 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Xylenes, Total 2955 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Dichloromethane 2964 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 O-Dichlorobenzene 2968 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 P-Dichlorobenzene 2969 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Vinyl Chloride 2976 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 1,1-Dichloroethylene 2977 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Trans-1,2-Dichloroethylene 2979 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 1,2-Dichloroethane 2980 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 1,1,1-Trichloroethane 2981 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Carbon Tetrachloride 2982 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 1,2-Dichloropropane 2983 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Trichloroethylene 2984 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 1,1,2-Trichloroethane 2985 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Tetrachloroethylene 2987 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Chlorobenzene 2989 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Benzene 2990 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Toluene 2991 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Ethylbenzene 2992 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 23, 2002, sampling point TF102 Styrene 2996 Not recorded
Collected
Apr 9, 2002
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
Not recorded
Laboratory
STL Billerica
Not detected below 0.197 mfl Minimum Reporting Level , sample collected Apr 9, 2002, sampling point DS000 Asbestos 1094 Not recorded

Routine (5).