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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 211–220 of 565 samples, newest first — collected May 8, 2018 to July 31, 2018. The summary above covers all 565.

58 results from the 10 samples listed here: 16 detected, 42 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 211 to 220 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
Jul 31, 2018 03:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180801-026PB
Laboratory
MSDH Lab
0.4512 mg/l , sample collected Jul 31, 2018 03:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0006 mg/l , sample collected Jul 31, 2018 03:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Jul 31, 2018 08:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180801-024PB
Laboratory
MSDH Lab
0.0332 mg/l , sample collected Jul 31, 2018 08:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0016 mg/l , sample collected Jul 31, 2018 08:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Jul 31, 2018 12:37
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180801-023PB
Laboratory
MSDH Lab
0.3182 mg/l , sample collected Jul 31, 2018 12:37, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0011 mg/l , sample collected Jul 31, 2018 12:37, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Jul 31, 2018 08:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180801-021PB
Laboratory
MSDH Lab
0.3525 mg/l , sample collected Jul 31, 2018 08:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0008 mg/l , sample collected Jul 31, 2018 08:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Jul 31, 2018 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180801-017PB
Laboratory
MSDH Lab
0.0073 mg/l , sample collected Jul 31, 2018 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0005 mg/l , sample collected Jul 31, 2018 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Jul 31, 2018 07:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180801-016PB
Laboratory
MSDH Lab
0.4878 mg/l , sample collected Jul 31, 2018 07:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0018 mg/l , sample collected Jul 31, 2018 07:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Jul 30, 2018 09:55
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180801-033PB
Laboratory
MSDH Lab
0.3224 mg/l , sample collected Jul 30, 2018 09:55, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0008 mg/l , sample collected Jul 30, 2018 09:55, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Jul 30, 2018 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180801-022PB
Laboratory
MSDH Lab
0.1041 mg/l , sample collected Jul 30, 2018 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0008 mg/l , sample collected Jul 30, 2018 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
May 8, 2018 01:42
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
180509-004VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Dichloromethane 2964 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Benzene 2990 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Toluene 2991 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:42, sampling point TF106 Styrene 2996 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Collected
May 8, 2018 01:22
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
180509-003VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Dichloromethane 2964 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Benzene 2990 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Toluene 2991 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2018 01:22, sampling point TF105 Styrene 2996 EPA method 524.2 Apr 1, 2018 – Jun 30, 2018

Routine (10).