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 101–110 of 219 samples, newest first — collected September 9, 2014 to November 10, 2014. The summary above covers all 219.
40 results from the 10 samples listed here: 9 detected, 31 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 |
|---|---|---|
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 10, 2014 15:15, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 10, 2014 15:15, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 10, 2014 15:15, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Benzene 2990 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Toluene 2991 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 22, 2014 03:45, sampling point TF103 | Styrene 2996 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2014 |
|
||
| 0.0461 mg/l , sample collected Sep 9, 2014 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 9, 2014 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.2265 mg/l , sample collected Sep 9, 2014 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0005 mg/l , sample collected Sep 9, 2014 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.1028 mg/l , sample collected Sep 9, 2014 09:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 9, 2014 09:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.2616 mg/l , sample collected Sep 9, 2014 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 9, 2014 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.2511 mg/l , sample collected Sep 9, 2014 09:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 9, 2014 09:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.092 mg/l , sample collected Sep 9, 2014 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 9, 2014 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.1619 mg/l , sample collected Sep 9, 2014 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 9, 2014 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.1053 mg/l , sample collected Sep 9, 2014 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 9, 2014 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
-
- Collected
- Nov 10, 2014 15:15
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 141111-005NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Sep 22, 2014 03:45
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 140923-021VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
1,2,4-Trichlorobenzene 2378 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Cis-1,2-Dichloroethylene 2380 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Xylenes, Total 2955 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
O-Dichlorobenzene 2968 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
P-Dichlorobenzene 2969 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Vinyl Chloride 2976 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1-Dichloroethylene 2977 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trans-1,2-Dichloroethylene 2979 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloroethane 2980 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,1-Trichloroethane 2981 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Carbon Tetrachloride 2982 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloropropane 2983 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trichloroethylene 2984 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,2-Trichloroethane 2985 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Tetrachloroethylene 2987 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Chlorobenzene 2989 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Benzene 2990 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Toluene 2991 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Ethylbenzene 2992 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Styrene 2996 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 9, 2014 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140910-191PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0461 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 9, 2014 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140910-186PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2265 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0005 mg/l
-
- Collected
- Sep 9, 2014 09:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140910-185PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1028 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 9, 2014 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140910-184PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2616 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 9, 2014 09:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140910-183PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2511 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 9, 2014 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140910-182PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.092 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 9, 2014 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140910-171PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1619 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 9, 2014 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140910-170PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1053 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).