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
MS0480007 , Hamilton Water District
20 of the 57 analytes this system has been tested for have been detected at least once, across 450 samples on record.
The other 37 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 20, 2003 to September 22, 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 | 280 of 283 results | Sep 5, 2007 | Jul 31, 2024 |
| Lead 1030 | Inorganic Chemical | 59 of 283 results | Sep 5, 2007 | Jul 20, 2021 |
| Barium 1010 | Inorganic Chemical | 21 of 21 results | Oct 20, 2003 | Mar 10, 2025 |
| Nickel 1036 | Inorganic Chemical | 18 of 21 results | Oct 20, 2003 | Mar 10, 2025 |
| TTHM 2950 | Organic Chemical | 14 of 17 results | Aug 29, 2007 | Sep 22, 2025 |
| Chloroform 2941 | Organic Chemical | 10 of 13 results | Aug 12, 2013 | Sep 22, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 10 of 13 results | Aug 12, 2013 | Sep 22, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 10 of 13 results | Aug 12, 2013 | Sep 22, 2025 |
| Chromium 1020 | Inorganic Chemical | 9 of 21 results | Oct 20, 2003 | Feb 5, 2024 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 20 results | Jul 8, 2010 | May 22, 2024 |
| Dichloroacetic Acid 2451 | Organic Chemical | 6 of 15 results | Jul 8, 2010 | Sep 22, 2025 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 16, 2019 | Feb 25, 2025 |
| Sulfate 1055 | Inorganic Chemical | 6 of 6 results | Oct 20, 2003 | Mar 10, 2004 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 10 results | Mar 12, 2012 | Oct 11, 2012 |
| Beryllium, Total 1075 | Inorganic Chemical | 5 of 21 results | Oct 20, 2003 | Jan 13, 2010 |
| Bromoform 2942 | Organic Chemical | 1 of 13 results | Sep 22, 2025 | Sep 22, 2025 |
| Fluoride 1025 | Inorganic Chemical | 1 of 21 results | Mar 10, 2025 | Mar 10, 2025 |
| Selenium 1045 | Inorganic Chemical | 1 of 21 results | Jan 13, 2010 | Jan 13, 2010 |
| Thallium, Total 1085 | Inorganic Chemical | 1 of 21 results | Jan 13, 2010 | Jan 13, 2010 |
| Arsenic 1005 | Inorganic Chemical | 1 of 21 results | Oct 20, 2003 | Oct 20, 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 271–280 of 450 samples, newest first — collected February 24, 2014 to February 24, 2014. The summary above covers all 450.
20 results from the 10 samples listed here: 14 detected, 6 not detected. Across the whole record it is 472 of 1,593. 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 |
|---|---|---|
|
||
| 0.119 mg/l , sample collected Feb 24, 2014 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| 0.0006 mg/l , sample collected Feb 24, 2014 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.1311 mg/l , sample collected Feb 24, 2014 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2014 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.0524 mg/l , sample collected Feb 24, 2014, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2014, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.0382 mg/l , sample collected Feb 24, 2014 06:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| 0.0017 mg/l , sample collected Feb 24, 2014 06:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.2673 mg/l , sample collected Feb 24, 2014 07:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| 0.0014 mg/l , sample collected Feb 24, 2014 07:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.3821 mg/l , sample collected Feb 24, 2014 06:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| 0.0008 mg/l , sample collected Feb 24, 2014 06:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.8041 mg/l , sample collected Feb 24, 2014 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2014 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.0055 mg/l , sample collected Feb 24, 2014 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2014 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.0034 mg/l , sample collected Feb 24, 2014 06:05, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2014 06:05, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
|
||
| 0.0075 mg/l , sample collected Feb 24, 2014 07:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2014 07:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2014 – Jun 30, 2014 |
-
- Collected
- Feb 24, 2014 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-031PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.119 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Feb 24, 2014 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-030PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1311 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 24, 2014
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-029PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0524 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 24, 2014 06:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-028PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0382 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0017 mg/l
-
- Collected
- Feb 24, 2014 07:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-027PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2673 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0014 mg/l
-
- Collected
- Feb 24, 2014 06:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-026PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3821 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0008 mg/l
-
- Collected
- Feb 24, 2014 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-025PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.8041 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 24, 2014 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-024PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0055 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 24, 2014 06:05
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-023PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0034 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 24, 2014 07:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140226-022PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Jun 30, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0075 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).