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
MS0120009 , Town of Stonewall
25 of the 57 analytes this system has been tested for have been detected at least once, across 323 samples on record.
The other 32 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 323 samples on record, detections range from July 20, 1993 to February 18, 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 | 123 of 152 results | Jul 20, 1993 | Jun 11, 2025 |
| Lead 1030 | Inorganic Chemical | 101 of 152 results | Jul 20, 1993 | Jun 11, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 44 of 44 results | May 12, 2004 | Feb 18, 2026 |
| TTHM 2950 | Organic Chemical | 44 of 44 results | May 12, 2004 | Feb 18, 2026 |
| Chloroform 2941 | Organic Chemical | 33 of 33 results | Jun 4, 2007 | Feb 18, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 33 of 33 results | Jun 4, 2007 | Feb 18, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 33 of 33 results | Jun 4, 2007 | Feb 18, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 29 of 29 results | Jun 23, 2008 | Feb 18, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 29 of 29 results | Jun 23, 2008 | Feb 18, 2026 |
| Dibromoacetic Acid 2454 | Organic Chemical | 28 of 29 results | Jun 23, 2008 | Feb 18, 2026 |
| Barium 1010 | Inorganic Chemical | 21 of 21 results | Mar 19, 2002 | Jan 14, 2025 |
| Fluoride 1025 | Inorganic Chemical | 16 of 21 results | Jan 26, 2004 | Jan 14, 2025 |
| Chromium 1020 | Inorganic Chemical | 13 of 21 results | Mar 19, 2002 | Jan 14, 2025 |
| Bromoform 2942 | Organic Chemical | 11 of 33 results | Jun 23, 2008 | Feb 18, 2026 |
| Selenium 1045 | Inorganic Chemical | 10 of 21 results | Jan 26, 2004 | May 4, 2011 |
| Monochloroacetic Acid 2450 | Organic Chemical | 6 of 29 results | Jun 23, 2008 | Apr 17, 2019 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 6, 2011 | Jul 11, 2012 |
| Arsenic 1005 | Inorganic Chemical | 4 of 21 results | Dec 5, 2005 | May 4, 2011 |
| Nickel 1036 | Inorganic Chemical | 4 of 21 results | Mar 19, 2002 | Mar 26, 2008 |
| Cadmium 1015 | Inorganic Chemical | 4 of 21 results | Mar 19, 2002 | Jan 23, 2006 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 16, 2019 | Oct 15, 2024 |
| Sulfate 1055 | Inorganic Chemical | 2 of 6 results | Mar 19, 2002 | Mar 19, 2002 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 31 results | Jan 18, 2023 | Jan 18, 2023 |
| Nitrite 1041 | Inorganic Chemical | 1 of 31 results | Jan 18, 2023 | Jan 18, 2023 |
| Nitrate 1040 | Inorganic Chemical | 1 of 31 results | May 5, 2004 | May 5, 2004 |
Showing samples collected between September 26, 2024 and September 26, 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 11–20 of 28 samples, newest first — collected May 12, 2025 to June 11, 2025. The summary above covers all 28.
38 results from the 10 samples listed here: 30 detected, 8 not detected. Across the whole record it is 599 of 1,299. 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 |
|---|---|---|
|
||
| 0.348 mg/l , sample collected Jun 11, 2025 09:00, sampling point LC003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 11, 2025 09:00, sampling point LC003 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0256 mg/l , sample collected Jun 11, 2025 10:05, sampling point LC007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.785 ug/l , sample collected Jun 11, 2025 10:05, sampling point LC007 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0853 mg/l , sample collected Jun 11, 2025 09:30, sampling point LC011 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 11, 2025 09:30, sampling point LC011 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.763 mg/l , sample collected Jun 11, 2025 09:40, sampling point LC012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 1.64 ug/l , sample collected Jun 11, 2025 09:40, sampling point LC012 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.105 mg/l , sample collected Jun 11, 2025 09:45, sampling point LC001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.808 ug/l , sample collected Jun 11, 2025 09:45, sampling point LC001 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0912 mg/l , sample collected Jun 11, 2025 10:00, sampling point LC008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 11, 2025 10:00, sampling point LC008 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0433 mg/l , sample collected Jun 11, 2025 09:55, sampling point LC002 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 2.32 ug/l , sample collected Jun 11, 2025 09:55, sampling point LC002 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0164 mg/l , sample collected Jun 11, 2025 09:50, sampling point LC009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 5.98 ug/l , sample collected Jun 11, 2025 09:50, sampling point LC009 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected May 12, 2025 11:37, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 8.7 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 6.1 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 12, 2025 11:37, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 1.4 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 16.2 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2025 – Jun 30, 2025 |
| 19 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 0.52 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 13 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 7.7 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 40.22 ug/l , sample collected May 12, 2025 11:37, sampling point SM2 | TTHM 2950 EPA method 524.2 | Apr 1, 2025 – Jun 30, 2025 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected May 12, 2025 11:30, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 8.7 ug/l , sample collected May 12, 2025 11:30, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 6 ug/l , sample collected May 12, 2025 11:30, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 12, 2025 11:30, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 1.3 ug/l , sample collected May 12, 2025 11:30, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 16 ug/l , sample collected May 12, 2025 11:30, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2025 – Jun 30, 2025 |
| 13 ug/l , sample collected May 12, 2025 11:30, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 12, 2025 11:30, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 9.1 ug/l , sample collected May 12, 2025 11:30, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 5.2 ug/l , sample collected May 12, 2025 11:30, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 27.3 ug/l , sample collected May 12, 2025 11:30, sampling point SM1 | TTHM 2950 EPA method 524.2 | Apr 1, 2025 – Jun 30, 2025 |
-
- Collected
- Jun 11, 2025 09:00
- Sampling point
- LC003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250612-073
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.348 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 11, 2025 10:05
- Sampling point
- LC007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250612-072
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0256 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.785 ug/l
-
- Collected
- Jun 11, 2025 09:30
- Sampling point
- LC011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250612-071
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0853 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 11, 2025 09:40
- Sampling point
- LC012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250612-070
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.763 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.64 ug/l
-
- Collected
- Jun 11, 2025 09:45
- Sampling point
- LC001 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250612-069
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.105 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.808 ug/l
-
- Collected
- Jun 11, 2025 10:00
- Sampling point
- LC008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250612-068
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0912 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 11, 2025 09:55
- Sampling point
- LC002 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250612-067
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0433 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2.32 ug/l
-
- Collected
- Jun 11, 2025 09:50
- Sampling point
- LC009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250612-066
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0164 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 5.98 ug/l
-
- Collected
- May 12, 2025 11:37
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-148322-2
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 8.7 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 6.1 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 1.4 ug/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 16.2 ug/l
- Monitoring period
- Apr 1, 2025 – Jun 30, 2025
-
Chloroform 2941 EPA method 524.2
- Result
- 19 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 0.52 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 13 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 7.7 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 40.22 ug/l
- Monitoring period
- Apr 1, 2025 – Jun 30, 2025
-
- Collected
- May 12, 2025 11:30
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-148322-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 8.7 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 6 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 1.3 ug/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 16 ug/l
- Monitoring period
- Apr 1, 2025 – Jun 30, 2025
-
Chloroform 2941 EPA method 524.2
- Result
- 13 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 9.1 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 5.2 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 27.3 ug/l
- Monitoring period
- Apr 1, 2025 – Jun 30, 2025
Routine (10).