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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

MS0260017 , Town of West

31 of the 62 analytes this system has been tested for have been detected at least once, across 429 samples on record.

The other 31 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 429 samples on record, detections range from July 8, 1993 to February 11, 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 West, 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 93 of 100 results Jul 8, 1993 Jul 10, 2023
Lead 1030 Inorganic Chemical 89 of 100 results Jul 8, 1993 Jul 10, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 51 of 71 results Aug 6, 2007 Oct 8, 2024
TTHM 2950 Organic Chemical 42 of 71 results Jun 7, 2004 Apr 16, 2024
Fluoride 1025 Inorganic Chemical 29 of 29 results Sep 17, 2003 Feb 11, 2025
Chloroform 2941 Organic Chemical 29 of 41 results Aug 6, 2007 Sep 19, 2018
Barium 1010 Inorganic Chemical 28 of 28 results Sep 17, 2003 Feb 11, 2025
Dichloroacetic Acid 2451 Organic Chemical 28 of 39 results Jan 31, 2008 Jun 6, 2018
Bromoform 2942 Organic Chemical 27 of 41 results Aug 6, 2007 Sep 19, 2018
Bromodichloromethane 2943 Organic Chemical 27 of 41 results Aug 6, 2007 Sep 19, 2018
Dibromochloromethane 2944 Organic Chemical 27 of 41 results Aug 6, 2007 Sep 19, 2018
Trichloroacetic Acid 2452 Organic Chemical 25 of 39 results Jan 31, 2008 Jun 6, 2018
Dibromoacetic Acid 2454 Organic Chemical 25 of 39 results Jan 31, 2008 Jun 6, 2018
Arsenic 1005 Inorganic Chemical 20 of 28 results Sep 17, 2003 May 16, 2022
Chromium 1020 Inorganic Chemical 17 of 28 results Sep 17, 2003 May 16, 2022
Gross Alpha, Incl. Radon & U 4002 Radionuclide 15 of 15 results Mar 6, 2012 Oct 3, 2012
Selenium 1045 Inorganic Chemical 13 of 28 results Sep 17, 2003 Oct 15, 2019
Monochloroacetic Acid 2450 Organic Chemical 10 of 39 results Apr 28, 2008 Jun 6, 2018
Sodium 1052 Inorganic Chemical 9 of 9 results Sep 24, 2019 Feb 13, 2024
Monobromoacetic Acid 2453 Organic Chemical 8 of 39 results Aug 16, 2011 Aug 21, 2017
Nickel 1036 Inorganic Chemical 6 of 28 results Sep 17, 2003 Mar 9, 2015
Nitrite 1041 Inorganic Chemical 6 of 62 results Aug 8, 2005 Feb 21, 2011
Color 1905 Water Quality 2 of 2 results Nov 2, 2021 Nov 2, 2021
Calcium 1016 Inorganic Chemical 1 of 1 result Nov 2, 2021 Nov 2, 2021
Chloride 1017 Inorganic Chemical 1 of 1 result Nov 2, 2021 Nov 2, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 1 of 1 result Nov 2, 2021 Nov 2, 2021
Alkalinity, Total 1927 Water Quality 1 of 1 result Nov 2, 2021 Nov 2, 2021
Beryllium, Total 1075 Inorganic Chemical 1 of 28 results Mar 9, 2015 Mar 9, 2015
Dichloromethane 2964 Organic Chemical 1 of 35 results Aug 27, 2007 Aug 27, 2007
Carbon Tetrachloride 2982 Organic Chemical 1 of 35 results Oct 25, 2004 Oct 25, 2004
Sulfate 1055 Inorganic Chemical 1 of 7 results Sep 17, 2003 Sep 17, 2003

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 321–330 of 429 samples, newest first — collected August 27, 2007 to April 14, 2008. The summary above covers all 429.

73 results from the 10 samples listed here: 33 detected, 40 not detected. Across the whole record it is 634 of 2,057. 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 West, every result from 321 to 330 of 429 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
Apr 14, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080415-073IN
Laboratory
MSDH Lab
0.001123 mg/l , sample collected Apr 14, 2008, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.011055 mg/l , sample collected Apr 14, 2008, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.00153 mg/l , sample collected Apr 14, 2008, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.33 mg/l , sample collected Apr 14, 2008, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.000761 mg/l , sample collected Apr 14, 2008, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.004243 mg/l , sample collected Apr 14, 2008, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Apr 14, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
080415-072IN
Laboratory
MSDH Lab
0.001439 mg/l , sample collected Apr 14, 2008, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.016692 mg/l , sample collected Apr 14, 2008, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.002656 mg/l , sample collected Apr 14, 2008, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.423 mg/l , sample collected Apr 14, 2008, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.000609 mg/l , sample collected Apr 14, 2008, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
0.005764 mg/l , sample collected Apr 14, 2008, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Apr 14, 2008
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
080415-005IN
Laboratory
MSDH Lab
0.001548 mg/l , sample collected Apr 14, 2008, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.014767 mg/l , sample collected Apr 14, 2008, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.002566 mg/l , sample collected Apr 14, 2008, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.428 mg/l , sample collected Apr 14, 2008, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.000769 mg/l , sample collected Apr 14, 2008, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.005957 mg/l , sample collected Apr 14, 2008, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Apr 14, 2008
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
080415-066CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Apr 14, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
080415-032CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Jan 31, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080201-008HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jan 31, 2008, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Jan 31, 2008, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jan 31, 2008, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 31, 2008, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jan 31, 2008, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.006 mg/l , sample collected Jan 31, 2008, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Mar 31, 2008
Collected
Jan 31, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080201-008TH
Laboratory
MSDH Lab
3.9 ug/l , sample collected Jan 31, 2008, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.92 ug/l , sample collected Jan 31, 2008, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
2.73 ug/l , sample collected Jan 31, 2008, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
3.09 ug/l , sample collected Jan 31, 2008, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
11.64 ug/l , sample collected Jan 31, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Mar 31, 2008
Collected
Dec 3, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
071204-003TH
Laboratory
MSDH Lab
6.45 ug/l , sample collected Dec 3, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
3.2 ug/l , sample collected Dec 3, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
4.15 ug/l , sample collected Dec 3, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
4.77 ug/l , sample collected Dec 3, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
18.57 ug/l , sample collected Dec 3, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Oct 1, 2007 – Dec 31, 2007
Collected
Nov 5, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
071106-008HA
Laboratory
MSDH Lab
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Nov 5, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2007 – Dec 31, 2007
Collected
Aug 27, 2007
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
070828-020VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
0.816 ug/l , sample collected Aug 27, 2007, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Benzene 2990 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Toluene 2991 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 27, 2007, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2007 – Dec 31, 2007

Routine (10).