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.
| 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 191–200 of 429 samples, newest first — collected October 3, 2012 to April 16, 2013. The summary above covers all 429.
45 results from the 10 samples listed here: 15 detected, 30 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Apr 16, 2013 12:30, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Apr 16, 2013 12:30, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Apr 16, 2013 12:30, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 16, 2013 12:30, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Apr 16, 2013 12:30, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Apr 16, 2013 12:30, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Apr 1, 2013 – Jun 30, 2013 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 4 ug/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2013 – Mar 31, 2013 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Feb 12, 2013 01:45, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2013 – Mar 31, 2013 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:15, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:15, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:15, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:35, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:35, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:35, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:50, sampling point TF103 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:50, sampling point TF103 | Nitrate 1040 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 01:50, sampling point TF103 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| 6.23 ug/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 2.41 ug/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 3.16 ug/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 3.58 ug/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 15.38 ug/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Nov 6, 2012 03:40, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 2.1 pci/l , sample collected Oct 3, 2012 12:15, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 12:15, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.228 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 12:15, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 12:15, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 0.5 pci/l , sample collected Oct 3, 2012 13:10, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.21 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 13:10, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.2 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 13:10, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.21 pci/l Minimum Reporting Level , sample collected Oct 3, 2012 13:10, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
-
- Collected
- Apr 16, 2013 12:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130417-001HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.008 mg/l
- Monitoring period
- Apr 1, 2013 – Jun 30, 2013
-
- Collected
- Feb 12, 2013 01:45
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130213-001TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 4 ug/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2013 – Mar 31, 2013
-
- Collected
- Feb 12, 2013 01:45
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130213-001HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- Not detected below 0.006 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2013 – Mar 31, 2013
-
- Collected
- Feb 4, 2013 01:15
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 130205-092NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Feb 4, 2013 01:35
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 130205-079NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Feb 4, 2013 01:50
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 130205-069NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Nov 6, 2012 03:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 121107-002TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 6.23 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 2.41 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 3.16 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 3.58 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 15.38 ug/l
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Nov 6, 2012 03:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 121107-002HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.008 mg/l
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 3, 2012 12:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 201301130189
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 2.1 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.23 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.228 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.23 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 3, 2012 13:10
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 201301130187
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.5 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.21 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.2 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.21 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
Routine (10).