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
MS0620001 , C & C W/A
30 of the 57 analytes this system has been tested for have been detected at least once, across 450 samples on record.
The other 27 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 450 samples on record, detections range from October 22, 2003 to October 21, 2025. These figures cover the whole record; the list of samples further down is narrowed.
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 |
|---|---|---|---|---|
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 74 of 75 results | Nov 17, 2005 | Oct 21, 2025 |
| TTHM 2950 | Organic Chemical | 74 of 75 results | Nov 17, 2005 | Oct 21, 2025 |
| Copper, Free 1022 | Inorganic Chemical | 57 of 57 results | Aug 16, 2007 | Jul 24, 2023 |
| Chloroform 2941 | Organic Chemical | 41 of 41 results | Oct 9, 2006 | Oct 21, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 41 of 41 results | Oct 9, 2006 | Oct 21, 2025 |
| Lead 1030 | Inorganic Chemical | 38 of 57 results | Aug 16, 2007 | Jul 24, 2023 |
| Dichloroacetic Acid 2451 | Organic Chemical | 36 of 36 results | Feb 27, 2008 | Oct 21, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 36 of 36 results | Feb 27, 2008 | Oct 21, 2025 |
| Barium 1010 | Inorganic Chemical | 33 of 33 results | Oct 22, 2003 | Mar 24, 2025 |
| Fluoride 1025 | Inorganic Chemical | 33 of 33 results | Oct 22, 2003 | Mar 24, 2025 |
| Chromium 1020 | Inorganic Chemical | 21 of 33 results | Oct 22, 2003 | Jan 9, 2024 |
| Dibromochloromethane 2944 | Organic Chemical | 15 of 41 results | Nov 3, 2008 | Sep 1, 2020 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 15 results | Mar 12, 2012 | Oct 3, 2012 |
| Dibromoacetic Acid 2454 | Organic Chemical | 12 of 36 results | Nov 3, 2008 | Sep 1, 2020 |
| Bromoform 2942 | Organic Chemical | 11 of 41 results | Nov 3, 2008 | Sep 1, 2020 |
| Monochloroacetic Acid 2450 | Organic Chemical | 9 of 36 results | May 11, 2009 | Feb 24, 2020 |
| Nickel 1036 | Inorganic Chemical | 6 of 33 results | Dec 3, 2007 | Mar 31, 2014 |
| Selenium 1045 | Inorganic Chemical | 5 of 33 results | Mar 24, 2004 | Feb 1, 2010 |
| Nitrite 1041 | Inorganic Chemical | 5 of 67 results | Jun 9, 2004 | Oct 3, 2005 |
| Arsenic 1005 | Inorganic Chemical | 4 of 33 results | Nov 3, 2008 | Oct 17, 2022 |
| Monobromoacetic Acid 2453 | Organic Chemical | 4 of 36 results | Nov 27, 2017 | Feb 24, 2020 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Nov 6, 2023 | Nov 6, 2023 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 2 of 67 results | Jun 9, 2004 | Jun 9, 2004 |
| Nitrate 1040 | Inorganic Chemical | 2 of 67 results | Jun 9, 2004 | Jun 9, 2004 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 72 results | Oct 3, 2012 | Oct 3, 2012 |
| Carbon Tetrachloride 2982 | Organic Chemical | 1 of 72 results | Oct 3, 2012 | Oct 3, 2012 |
| Ethylbenzene 2992 | Organic Chemical | 1 of 72 results | Oct 3, 2012 | Oct 3, 2012 |
| Toluene 2991 | Organic Chemical | 1 of 72 results | Sep 13, 2004 | Sep 13, 2004 |
| Dichloromethane 2964 | Organic Chemical | 1 of 72 results | Sep 2, 2004 | Sep 2, 2004 |
| Sulfate 1055 | Inorganic Chemical | 1 of 4 results | Oct 22, 2003 | Oct 22, 2003 |
Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The table below lists 11–13 of 13 samples, newest first — collected October 15, 2024 to October 15, 2024. The summary above covers all 13.
3 results from the 3 samples listed here: 2 detected, 1 not detected. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
We withheld the location of 2 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 53.8 ug/l , sample collected Oct 15, 2024 13:22, sampling point SMT | TTHM 2950 EPA method 524.2 | Oct 1, 2024 – Dec 31, 2024 |
|
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| 45.9 ug/l , sample collected Oct 15, 2024 12:48, sampling point SMH | TTHM 2950 EPA method 524.2 | Oct 1, 2024 – Dec 31, 2024 |
|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 15, 2024 12:07, sampling point TF104 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2022 – Dec 31, 2024 |
-
- Collected
- Oct 15, 2024 13:22
- Sampling point
- SMT Location withheld
- Sample type
- Routine
- Lab sample
- TH-241016-004
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2024 – Dec 31, 2024
-
TTHM 2950 EPA method 524.2
- Result
- 53.8 ug/l
-
- Collected
- Oct 15, 2024 12:48
- Sampling point
- SMH Location withheld
- Sample type
- Routine
- Lab sample
- TH-241016-003
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2024 – Dec 31, 2024
-
TTHM 2950 EPA method 524.2
- Result
- 45.9 ug/l
-
- Collected
- Oct 15, 2024 12:07
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- CN-241016-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
Routine (3).