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
MS0100017 , Union W/A
43 of the 73 analytes this system has been tested for have been detected at least once, across 326 samples on record.
The other 30 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 326 samples on record, detections range from September 16, 1993 to January 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 |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 117 of 136 results | Sep 16, 1993 | Sep 25, 2024 |
| Lead 1030 | Inorganic Chemical | 53 of 136 results | Sep 16, 1993 | Jun 8, 2023 |
| TTHM 2950 | Organic Chemical | 32 of 41 results | Jul 12, 2004 | Mar 21, 2023 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 26 of 39 results | Jul 12, 2004 | Mar 21, 2023 |
| Chloroform 2941 | Organic Chemical | 23 of 24 results | May 23, 2006 | Jun 26, 2018 |
| Bromodichloromethane 2943 | Organic Chemical | 21 of 24 results | May 23, 2006 | Jun 26, 2018 |
| Dibromochloromethane 2944 | Organic Chemical | 18 of 24 results | Jul 31, 2006 | Jun 26, 2018 |
| Barium 1010 | Inorganic Chemical | 16 of 16 results | Mar 12, 2002 | Jan 21, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 14 of 18 results | Aug 25, 2008 | Jun 26, 2018 |
| Fluoride 1025 | Inorganic Chemical | 13 of 17 results | Mar 12, 2002 | Jan 21, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 12 of 18 results | Aug 25, 2008 | Jun 26, 2018 |
| Chromium 1020 | Inorganic Chemical | 9 of 16 results | Feb 14, 2005 | Jan 12, 2021 |
| Dibromoacetic Acid 2454 | Organic Chemical | 9 of 18 results | Aug 25, 2008 | Jun 26, 2018 |
| Nickel 1036 | Inorganic Chemical | 7 of 16 results | Mar 12, 2002 | Jan 21, 2025 |
| Sodium 1052 | Inorganic Chemical | 7 of 7 results | Sep 29, 2017 | Oct 16, 2024 |
| Monobromoacetic Acid 2453 | Organic Chemical | 7 of 18 results | Jan 28, 2008 | Nov 6, 2017 |
| Arsenic 1005 | Inorganic Chemical | 4 of 16 results | Jan 23, 2006 | Jan 12, 2021 |
| Nitrite 1041 | Inorganic Chemical | 3 of 34 results | Jan 10, 2022 | Jan 23, 2023 |
| Selenium 1045 | Inorganic Chemical | 3 of 16 results | Feb 14, 2005 | Jan 12, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 3 of 18 results | Oct 27, 2008 | Nov 6, 2017 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 2 of 2 results | Jun 6, 2014 | Sep 23, 2014 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 2 of 4 results | Jun 25, 2012 | Sep 11, 2012 |
| Bromoform 2942 | Organic Chemical | 2 of 24 results | Jul 31, 2006 | Aug 25, 2008 |
| Cadmium 1015 | Inorganic Chemical | 2 of 16 results | Feb 14, 2005 | Jan 23, 2006 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 34 results | Jan 22, 2018 | Jan 22, 2018 |
| Nitrate 1040 | Inorganic Chemical | 1 of 34 results | Jan 22, 2018 | Jan 22, 2018 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Iron 1028 | Inorganic Chemical | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Magnesium 1031 | Inorganic Chemical | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Manganese 1032 | Inorganic Chemical | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Potassium 1042 | Inorganic Chemical | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Sulfate 1055 | Inorganic Chemical | 1 of 3 results | Sep 29, 2017 | Sep 29, 2017 |
| Residue, Total, Filterable 1057 | Water Quality | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Color 1905 | Water Quality | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Calculated Sodium NACA | Water Quality | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| PH, Field Result PHFD | Water Quality | 1 of 1 result | Sep 29, 2017 | Sep 29, 2017 |
| Carbon Tetrachloride 2982 | Organic Chemical | 1 of 27 results | Oct 16, 2013 | Oct 16, 2013 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 27 results | Jun 25, 2012 | Jun 25, 2012 |
| Cyanide 1024 | Inorganic Chemical | 1 of 14 results | Feb 14, 2005 | Feb 14, 2005 |
Showing samples collected between September 25, 2024 and September 25, 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 11–17 of 17 samples, newest first — collected September 25, 2024 to October 16, 2024. The summary above covers all 17.
12 results from the 7 samples listed here: 7 detected, 5 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 5 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 |
|---|---|---|
|
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| 130 mg/l , sample collected Oct 16, 2024 09:16, sampling point TF102 | Sodium 1052 EPA method 200.7 | Jan 1, 2022 – Dec 31, 2024 |
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| 129 mg/l , sample collected Oct 16, 2024 04:07, sampling point TF101 | Sodium 1052 EPA method 200.7 | Jan 1, 2022 – Dec 31, 2024 |
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| 0.0172 mg/l , sample collected Sep 25, 2024 10:00, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 25, 2024 10:00, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
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| 0.0132 mg/l , sample collected Sep 25, 2024 07:00, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 25, 2024 07:00, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
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| 0.0984 mg/l , sample collected Sep 25, 2024 08:00, sampling point LC0005 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 25, 2024 08:00, sampling point LC0005 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
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| 0.0372 mg/l , sample collected Sep 25, 2024 11:00, sampling point LC0002 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 25, 2024 11:00, sampling point LC0002 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
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| 0.0121 mg/l , sample collected Sep 25, 2024 08:30, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 25, 2024 08:30, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
-
- Collected
- Oct 16, 2024 09:16
- Sampling point
- TF102 Treatment Facility TF102
- Sample type
- Routine
- Lab sample
- NA-241017-011
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Sodium 1052 EPA method 200.7
- Result
- 130 mg/l
-
- Collected
- Oct 16, 2024 04:07
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NA-241017-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Sodium 1052 EPA method 200.7
- Result
- 129 mg/l
-
- Collected
- Sep 25, 2024 10:00
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240926-020
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0172 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 25, 2024 07:00
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240926-019
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0132 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 25, 2024 08:00
- Sampling point
- LC0005 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240926-018
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0984 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 25, 2024 11:00
- Sampling point
- LC0002 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240926-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0372 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 25, 2024 08:30
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240926-016
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0121 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (7).