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
MS0100007 , Reform Water Association
26 of the 57 analytes this system has been tested for have been detected at least once, across 249 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 249 samples on record, detections range from July 28, 1993 to November 3, 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 | 121 of 152 results | Jul 28, 1993 | Sep 16, 2025 |
| Lead 1030 | Inorganic Chemical | 54 of 152 results | Jul 28, 1993 | Sep 16, 2025 |
| TTHM 2950 | Organic Chemical | 22 of 23 results | May 12, 2004 | Nov 3, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 15 of 17 results | Aug 18, 2014 | Nov 3, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 12 of 17 results | Aug 18, 2014 | Nov 3, 2025 |
| Chloroform 2941 | Organic Chemical | 11 of 17 results | Jul 10, 2007 | Nov 3, 2025 |
| Barium 1010 | Inorganic Chemical | 11 of 11 results | Mar 12, 2002 | Jan 15, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 11 of 23 results | May 5, 2004 | Jan 29, 2019 |
| Nitrate 1040 | Inorganic Chemical | 11 of 23 results | May 5, 2004 | Jan 29, 2019 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 22 results | Jul 10, 2007 | Mar 6, 2024 |
| Bromoform 2942 | Organic Chemical | 6 of 17 results | Feb 26, 2024 | May 14, 2025 |
| Chromium 1020 | Inorganic Chemical | 6 of 11 results | Mar 12, 2002 | Jan 15, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 6, 2011 | Jul 12, 2012 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 5 of 5 results | Dec 6, 2011 | Jul 12, 2012 |
| Radium-226 4020 | Radionuclide | 5 of 5 results | Dec 6, 2011 | Jul 12, 2012 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 16 results | Aug 18, 2014 | Dec 14, 2023 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 23, 2019 | Oct 14, 2024 |
| Nickel 1036 | Inorganic Chemical | 3 of 11 results | Mar 24, 2008 | Apr 21, 2014 |
| Fluoride 1025 | Inorganic Chemical | 2 of 11 results | Mar 24, 2008 | Jan 15, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 16 results | Aug 12, 2008 | Dec 14, 2023 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Mar 12, 2002 | Jan 12, 2004 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 16 results | Dec 14, 2023 | Dec 14, 2023 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 16 results | Jul 17, 2018 | Jul 17, 2018 |
| Cadmium 1015 | Inorganic Chemical | 1 of 11 results | Feb 14, 2005 | Feb 14, 2005 |
| Selenium 1045 | Inorganic Chemical | 1 of 11 results | Feb 14, 2005 | Feb 14, 2005 |
| Mercury 1035 | Inorganic Chemical | 1 of 11 results | Mar 12, 2002 | Mar 12, 2002 |
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 171–180 of 249 samples, newest first — collected September 2, 1999 to September 4, 2001. The summary above covers all 249.
20 results from the 10 samples listed here: 18 detected, 2 not detected. Across the whole record it is 325 of 874. 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 |
|---|---|---|
|
||
| 0.297 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.004 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.114 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.126 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.003 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.146 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.341 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.003 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.14 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.422 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.472 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.003 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.283 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Sep 4, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Sep 2, 1999, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Sep 2, 1999, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-038PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.297 mg/l
-
Lead 1030
- Result
- 0.004 mg/l
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-037PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.114 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-036PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.126 mg/l
-
Lead 1030
- Result
- 0.003 mg/l
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-033PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.146 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-032PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.341 mg/l
-
Lead 1030
- Result
- 0.003 mg/l
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-031PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.14 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-029PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.422 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-028PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.472 mg/l
-
Lead 1030
- Result
- 0.003 mg/l
-
- Collected
- Sep 4, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010905-027PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.283 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Sep 2, 1999
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 990903-035L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
Routine (10).