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
MS0070010 , Mt Comfort W/A
23 of the 57 analytes this system has been tested for have been detected at least once, across 328 samples on record.
The other 34 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 328 samples on record, detections range from September 20, 1993 to July 21, 2026. These figures cover the whole record; the list of samples further down is narrowed.
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 | 162 of 196 results | Sep 20, 1993 | Jul 21, 2026 |
| Lead 1030 | Inorganic Chemical | 128 of 196 results | Sep 20, 1993 | Jul 21, 2026 |
| TTHM 2950 | Organic Chemical | 17 of 22 results | Jun 25, 2007 | Nov 3, 2025 |
| Bromoform 2942 | Organic Chemical | 14 of 17 results | Jul 11, 2011 | Nov 3, 2025 |
| Barium 1010 | Inorganic Chemical | 12 of 12 results | Jul 2, 2002 | Jan 13, 2025 |
| Fluoride 1025 | Inorganic Chemical | 12 of 12 results | Jul 2, 2002 | Jan 13, 2025 |
| Nickel 1036 | Inorganic Chemical | 10 of 12 results | Jul 2, 2002 | Jan 13, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Dec 7, 2011 | Mar 23, 2016 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 10 of 10 results | Dec 7, 2011 | Mar 23, 2016 |
| Radium-226 4020 | Radionuclide | 10 of 10 results | Dec 7, 2011 | Mar 23, 2016 |
| Arsenic 1005 | Inorganic Chemical | 9 of 12 results | Jul 2, 2002 | Jan 13, 2025 |
| Selenium 1045 | Inorganic Chemical | 9 of 12 results | Jul 2, 2002 | May 3, 2022 |
| Dibromochloromethane 2944 | Organic Chemical | 7 of 17 results | Dec 6, 2023 | Nov 3, 2025 |
| Chromium 1020 | Inorganic Chemical | 6 of 12 results | Feb 16, 2005 | Jan 13, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 5 of 24 results | Jun 25, 2007 | Feb 8, 2022 |
| Dibromoacetic Acid 2454 | Organic Chemical | 3 of 18 results | Aug 11, 2008 | May 20, 2025 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 18, 2019 | Oct 15, 2024 |
| Xylenes, Total 2955 | Organic Chemical | 3 of 27 results | Sep 26, 2011 | Apr 3, 2012 |
| Bromodichloromethane 2943 | Organic Chemical | 2 of 17 results | May 20, 2025 | May 20, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 18 results | Aug 13, 2014 | Aug 13, 2014 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 18 results | Aug 13, 2014 | Aug 13, 2014 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 25 results | May 3, 2004 | May 3, 2004 |
| Nitrate 1040 | Inorganic Chemical | 1 of 25 results | May 3, 2004 | May 3, 2004 |
Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The table below lists 1–10 of 20 samples, newest first — collected July 21, 2026 to July 21, 2026. The summary above covers all 20.
20 results from the 10 samples listed here: 11 detected, 9 not detected. Across the whole record it is 436 of 1,433. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
We withheld the location of 10 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 523 ug/l , sample collected Jul 21, 2026, sampling point LC0013 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC0013 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 243 ug/l , sample collected Jul 21, 2026, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 580 ug/l , sample collected Jul 21, 2026, sampling point LC0016 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| 2.2 ug/l , sample collected Jul 21, 2026, sampling point LC0016 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 13.5 ug/l , sample collected Jul 21, 2026, sampling point LC0020 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC0020 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 339 ug/l , sample collected Jul 21, 2026, sampling point LC0012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC0012 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 635 ug/l , sample collected Jul 21, 2026, sampling point LC0024 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC0024 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 25.2 ug/l , sample collected Jul 21, 2026, sampling point LC0028 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC0028 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 124 ug/l , sample collected Jul 21, 2026, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 54.3 ug/l , sample collected Jul 21, 2026, sampling point LC0002 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC0002 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 702 ug/l , sample collected Jul 21, 2026, sampling point LC026 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2026, sampling point LC026 | Lead 1030 EPA method 200.8 | Jan 1, 2026 – Dec 31, 2026 |
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0013 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498010
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 523 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498009
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 243 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0016 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498008
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 580 ug/l
-
Lead 1030 EPA method 200.8
- Result
- 2.2 ug/l
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0020 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498007
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 13.5 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498006
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 339 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0024 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498005
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 635 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0028 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498004
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 25.2 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498003
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 124 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 21, 2026
- Sampling point
- LC0002 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498002
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 54.3 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 21, 2026
- Sampling point
- LC026 Location withheld
- Sample type
- Routine
- Lab sample
- 35053498001
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Copper, Free 1022 EPA method 200.8
- Result
- 702 ug/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 1 ug/l Minimum Reporting Level
Routine (10).