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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

MS0740002 , Improve Water Association

21 of the 58 analytes this system has been tested for have been detected at least once, across 219 samples on record.

The other 37 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 219 samples on record, detections range from October 29, 2003 to July 30, 2026. 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 Improve 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 60 of 60 results Aug 14, 2007 Aug 9, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 42 of 43 results Jun 14, 2004 Jul 30, 2026
Nitrate 1040 Inorganic Chemical 42 of 43 results Jun 14, 2004 Jul 30, 2026
Lead 1030 Inorganic Chemical 26 of 60 results Aug 14, 2007 Aug 9, 2023
Barium 1010 Inorganic Chemical 21 of 21 results Oct 29, 2003 Jul 30, 2026
Nickel 1036 Inorganic Chemical 11 of 19 results Apr 5, 2004 Apr 1, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 8 of 8 results Mar 14, 2012 Oct 1, 2019
Combined Radium (-226 & -228) 4010 Radionuclide 7 of 9 results Mar 14, 2012 Oct 1, 2019
Radium-226 4020 Radionuclide 7 of 9 results Mar 14, 2012 Oct 1, 2019
Radium-228 4030 Radionuclide 7 of 9 results Mar 14, 2012 Oct 1, 2019
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 23, 2019 Jul 30, 2026
Fluoride 1025 Inorganic Chemical 5 of 21 results Apr 2, 2014 Jan 13, 2021
Chromium 1020 Inorganic Chemical 3 of 21 results May 29, 2013 Apr 1, 2025
Selenium 1045 Inorganic Chemical 3 of 21 results Apr 5, 2004 Apr 17, 2006
Mercury 1035 Inorganic Chemical 2 of 21 results Dec 14, 2016 Jul 30, 2026
Arsenic 1005 Inorganic Chemical 2 of 21 results Apr 5, 2004 Apr 1, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 2 of 19 results Jul 15, 2010 Oct 28, 2020
TTHM 2950 Organic Chemical 2 of 18 results Sep 19, 2007 Jul 15, 2010
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Oct 28, 2020 Oct 28, 2020
Gross Alpha Particle Activity 4109 Radionuclide 1 of 1 result Mar 13, 2014 Mar 13, 2014
Cyanide 1024 Inorganic Chemical 1 of 19 results Apr 17, 2006 Apr 17, 2006

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 91–100 of 219 samples, newest first — collected December 14, 2016 to July 31, 2017. The summary above covers all 219.

49 results from the 10 samples listed here: 16 detected, 33 not detected. Across the whole record it is 259 of 1,235. 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 Improve Water Association, every result from 91 to 100 of 219 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, 2017 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-053PB
Laboratory
MSDH Lab
0.0866 mg/l , sample collected Jul 31, 2017 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 31, 2017 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 31, 2017 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-052PB
Laboratory
MSDH Lab
0.0192 mg/l , sample collected Jul 31, 2017 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0007 mg/l , sample collected Jul 31, 2017 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 31, 2017 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-051PB
Laboratory
MSDH Lab
0.0095 mg/l , sample collected Jul 31, 2017 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0005 mg/l , sample collected Jul 31, 2017 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 31, 2017 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-047PB
Laboratory
MSDH Lab
0.1162 mg/l , sample collected Jul 31, 2017 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0066 mg/l , sample collected Jul 31, 2017 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 31, 2017 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-046PB
Laboratory
MSDH Lab
0.0633 mg/l , sample collected Jul 31, 2017 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 31, 2017 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 14, 2017 11:30
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
170615-005CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 14, 2017 11:30, sampling point TF082 Cyanide 1024 EPA method QC10204001X Jan 1, 2016 – Dec 31, 2018
Collected
Apr 3, 2017 01:10
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
170404-039NI
Laboratory
MSDH Lab
0.36 mg/l , sample collected Apr 3, 2017 01:10, sampling point TF082 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
0.36 mg/l , sample collected Apr 3, 2017 01:10, sampling point TF082 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 3, 2017 01:10, sampling point TF082 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Apr 3, 2017 12:50
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
170404-038NI
Laboratory
MSDH Lab
1.05 mg/l , sample collected Apr 3, 2017 12:50, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
1.05 mg/l , sample collected Apr 3, 2017 12:50, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 3, 2017 12:50, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Dec 14, 2016 12:26
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
161215-079IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 14, 2016 12:26, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0744 mg/l , sample collected Dec 14, 2016 12:26, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 14, 2016 12:26, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 14, 2016 12:26, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.527 mg/l , sample collected Dec 14, 2016 12:26, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2014 – Dec 31, 2016
0.0001 mg/l , sample collected Dec 14, 2016 12:26, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0008 mg/l , sample collected Dec 14, 2016 12:26, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Dec 14, 2016 12:26, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 14, 2016 12:26, sampling point TF080 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 Dec 14, 2016 12:26, sampling point TF080 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 Dec 14, 2016 12:26, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Dec 14, 2016 01:45
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
161215-029VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Dichloromethane 2964 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Benzene 2990 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Toluene 2991 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 14, 2016 01:45, sampling point TF082 Styrene 2996 EPA method 524.2 Jan 1, 2016 – Dec 31, 2016

Routine (10).