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
MS0730009 , Wallerville Water Association
19 of the 57 analytes this system has been tested for have been detected at least once, across 219 samples on record.
The other 38 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 219 samples on record, detections range from October 29, 2003 to July 14, 2026. 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 | 61 of 61 results | Aug 21, 2006 | Aug 9, 2023 |
| Barium 1010 | Inorganic Chemical | 19 of 19 results | Oct 29, 2003 | Apr 2, 2025 |
| Fluoride 1025 | Inorganic Chemical | 18 of 19 results | Oct 29, 2003 | Apr 2, 2025 |
| Lead 1030 | Inorganic Chemical | 16 of 61 results | Aug 21, 2006 | Aug 9, 2023 |
| Nickel 1036 | Inorganic Chemical | 15 of 19 results | Oct 29, 2003 | Apr 2, 2025 |
| Chromium 1020 | Inorganic Chemical | 13 of 19 results | Oct 29, 2003 | May 17, 2023 |
| TTHM 2950 | Organic Chemical | 12 of 18 results | Sep 17, 2007 | Oct 29, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Mar 12, 2012 | Oct 10, 2012 |
| Bromoform 2942 | Organic Chemical | 9 of 13 results | Jul 13, 2010 | Oct 29, 2024 |
| Arsenic 1005 | Inorganic Chemical | 7 of 19 results | Apr 19, 2006 | Apr 2, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 7 of 13 results | Oct 26, 2020 | Oct 29, 2024 |
| Selenium 1045 | Inorganic Chemical | 7 of 19 results | Mar 29, 2004 | May 10, 2017 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Oct 2, 2019 | Jul 14, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 5 of 18 results | Jul 13, 2010 | Aug 30, 2023 |
| Sulfate 1055 | Inorganic Chemical | 4 of 4 results | Oct 29, 2003 | Mar 29, 2004 |
| Cadmium 1015 | Inorganic Chemical | 2 of 19 results | Apr 26, 2005 | Apr 26, 2005 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 12 results | Oct 26, 2020 | Oct 26, 2020 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 45 results | Apr 4, 2011 | Apr 4, 2011 |
| Nitrate 1040 | Inorganic Chemical | 1 of 45 results | Apr 4, 2011 | Apr 4, 2011 |
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 181–190 of 219 samples, newest first — collected April 19, 2006 to August 14, 2007. The summary above covers all 219.
23 results from the 10 samples listed here: 8 detected, 15 not detected. Across the whole record it is 214 of 1,154. 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 |
|---|---|---|
|
||
| 0.0808 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.1389 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0007 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.043 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.3093 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0017 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 16, 2007, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 16, 2007, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 16, 2007, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 16, 2007, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 16, 2007, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 16, 2007, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 0.2837 mg/l , sample collected Aug 21, 2006, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0014 mg/l , sample collected Aug 21, 2006, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 7, 2006, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 7, 2006, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 7, 2006, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 7, 2006, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 7, 2006, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 7, 2006, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
|
||
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 19, 2006, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2005 – Dec 31, 2007 |
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-296PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0808 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-295PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1389 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-299PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.043 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-298PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3093 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0017 mg/l
-
- Collected
- Jul 16, 2007
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 070717-004NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
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
- Jul 16, 2007
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 070717-003NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
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
- Aug 21, 2006
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 060822-011PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2837 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0014 mg/l
-
- Collected
- Aug 7, 2006
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 060808-079NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2006
-
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
- Aug 7, 2006
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 060808-090NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2006
-
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
- Apr 19, 2006
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 060420-025CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
Routine (10).