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
MS0030001 , Coles Water Association #1
18 of the 55 analytes this system has been tested for have been detected at least once, across 158 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 158 samples on record, detections range from April 14, 1994 to July 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 |
|---|---|---|---|---|
| Lead 1030 | Inorganic Chemical | 56 of 71 results | Apr 14, 1994 | Aug 13, 2024 |
| Copper, Free 1022 | Inorganic Chemical | 51 of 71 results | Apr 14, 1994 | Aug 13, 2024 |
| TTHM 2950 | Organic Chemical | 7 of 26 results | May 3, 2004 | Jul 22, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 27 results | Jun 25, 2007 | Mar 5, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 20 results | Jun 25, 2007 | Jul 22, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 20 results | Jun 25, 2007 | Jul 22, 2025 |
| Arsenic 1005 | Inorganic Chemical | 5 of 5 results | Apr 21, 2011 | Jan 10, 2024 |
| Barium 1010 | Inorganic Chemical | 5 of 5 results | Apr 21, 2011 | Jan 10, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 5, 2011 | Jul 10, 2012 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 5 of 5 results | Dec 5, 2011 | Jul 10, 2012 |
| Radium-226 4020 | Radionuclide | 5 of 5 results | Dec 5, 2011 | Jul 10, 2012 |
| Chloroform 2941 | Organic Chemical | 4 of 20 results | Jun 25, 2007 | Jul 22, 2025 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 18, 2019 | Oct 16, 2024 |
| Nickel 1036 | Inorganic Chemical | 2 of 5 results | May 5, 2014 | Jan 10, 2024 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 20 results | Mar 12, 2019 | Apr 16, 2019 |
| Fluoride 1025 | Inorganic Chemical | 1 of 5 results | Jan 10, 2024 | Jan 10, 2024 |
| Chromium 1020 | Inorganic Chemical | 1 of 5 results | May 5, 2014 | May 5, 2014 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 20 results | Jun 8, 2010 | Jun 8, 2010 |
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 121–130 of 158 samples, newest first — collected June 3, 1996 to September 21, 2004. The summary above covers all 158.
18 results from the 10 samples listed here: 15 detected, 3 not detected. Across the whole record it is 169 of 699. 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 |
|---|---|---|
|
||
| 0.0646 mg/l , sample collected Sep 21, 2004, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
| 0.0015 mg/l , sample collected Sep 21, 2004, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
|
||
| 6.63 ug/l , sample collected May 3, 2004, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2004 – Dec 31, 2004 |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected May 3, 2004, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2004 – Dec 31, 2004 |
|
||
| 0.023 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.004 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.051 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.004 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.021 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.003 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.066 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.011 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.079 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.008 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.133 mg/l , sample collected Jun 3, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.016 mg/l , sample collected Jun 3, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 3, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 3, 1996, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Sep 21, 2004
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 040922-192PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2003 – Dec 31, 2005
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0646 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0015 mg/l
-
- Collected
- May 3, 2004
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 040504-042TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2004 – Dec 31, 2004
-
TTHM 2950 EPA method 524.2
- Result
- 6.63 ug/l
-
- Collected
- May 3, 2004
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 040504-042HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2004 – Dec 31, 2004
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Aug 15, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000816-030L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.023 mg/l
-
Lead 1030
- Result
- 0.004 mg/l
-
- Collected
- Aug 15, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000816-029L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.051 mg/l
-
Lead 1030
- Result
- 0.004 mg/l
-
- Collected
- Aug 15, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000816-026L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.021 mg/l
-
Lead 1030
- Result
- 0.003 mg/l
-
- Collected
- Aug 15, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000816-025L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.066 mg/l
-
Lead 1030
- Result
- 0.011 mg/l
-
- Collected
- Aug 15, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000816-024L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.079 mg/l
-
Lead 1030
- Result
- 0.008 mg/l
-
- Collected
- Jun 3, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960604-013L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.133 mg/l
-
Lead 1030
- Result
- 0.016 mg/l
-
- Collected
- Jun 3, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960604-011L
- 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).