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
MS0710011 , Walker Switch Water Assn
10 of the 13 analytes this system has been tested for have been detected at least once, across 91 samples on record.
The other 3 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 91 samples on record, detections range from August 23, 2004 to September 16, 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 | 63 of 63 results | Aug 14, 2007 | Aug 8, 2023 |
| Lead 1030 | Inorganic Chemical | 25 of 63 results | Aug 14, 2007 | Sep 3, 2020 |
| TTHM 2950 | Organic Chemical | 14 of 18 results | Aug 23, 2004 | Sep 16, 2025 |
| Chloroform 2941 | Organic Chemical | 10 of 13 results | Sep 23, 2009 | Sep 16, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 19 results | Sep 23, 2009 | Aug 29, 2023 |
| Bromodichloromethane 2943 | Organic Chemical | 4 of 13 results | May 21, 2024 | Sep 16, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 2 of 13 results | Aug 8, 2024 | Aug 8, 2024 |
| Dichloroacetic Acid 2451 | Organic Chemical | 2 of 14 results | Sep 23, 2009 | Jul 21, 2014 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 14 results | Oct 27, 2020 | Oct 27, 2020 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 14 results | Aug 24, 2017 | Aug 24, 2017 |
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 81–90 of 91 samples, newest first — collected August 23, 2004 to August 14, 2007. The summary above covers all 91.
19 results from the 10 samples listed here: 19 detected, 0 not detected. Across the whole record it is 128 of 285. 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 |
|---|---|---|
|
||
| 0.1219 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0035 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.1586 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0046 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0719 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0011 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0443 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0009 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0705 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0021 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0345 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0013 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0856 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0056 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.1441 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0012 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.7747 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0038 mg/l , sample collected Aug 14, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 2.03 ug/l , sample collected Aug 23, 2004, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-569PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1219 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0035 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-406PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1586 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0046 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-568PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0719 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0011 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-407PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0443 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0009 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-412PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0705 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0021 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-415PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0345 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0013 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-414PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0856 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0056 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-413PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1441 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0012 mg/l
-
- Collected
- Aug 14, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070815-571PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.7747 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0038 mg/l
-
- Collected
- Aug 23, 2004
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 040824-022TH
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 2.03 ug/l
Routine (10).