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.
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 |
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 71–80 of 323 samples, newest first — collected April 17, 2019 to July 9, 2019. The summary above covers all 323.
27 results from the 10 samples listed here: 22 detected, 5 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.4964 mg/l , sample collected Jul 9, 2019 06:50, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0018 mg/l , sample collected Jul 9, 2019 06:50, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0627 mg/l , sample collected Jul 9, 2019 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0031 mg/l , sample collected Jul 9, 2019 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.317 mg/l , sample collected Jul 9, 2019 07:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2019 07:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0127 mg/l , sample collected Jul 9, 2019 04:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0008 mg/l , sample collected Jul 9, 2019 04:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.6905 mg/l , sample collected Jul 9, 2019 08:10, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0012 mg/l , sample collected Jul 9, 2019 08:10, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.3978 mg/l , sample collected Jul 9, 2019 06:40, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2019 06:40, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0399 mg/l , sample collected Jul 9, 2019 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0005 mg/l , sample collected Jul 9, 2019 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0826 mg/l , sample collected Jul 9, 2019 05:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2019 05:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 16.9 ug/l , sample collected Apr 17, 2019 13:20, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 17, 2019 13:20, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 12.9 ug/l , sample collected Apr 17, 2019 13:20, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 7.72 ug/l , sample collected Apr 17, 2019 13:20, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 37.5 ug/l , sample collected Apr 17, 2019 13:20, sampling point MRT000 | TTHM 2950 | Not recorded |
|
||
| 0.002 mg/l , sample collected Apr 17, 2019 13:00, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Apr 17, 2019 13:00, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.007 mg/l , sample collected Apr 17, 2019 13:00, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 17, 2019 13:00, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Apr 17, 2019 13:00, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.019 mg/l , sample collected Apr 17, 2019 13:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2019 – Dec 31, 2019 |
-
- Collected
- Jul 9, 2019 06:50
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190710-087PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4964 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0018 mg/l
-
- Collected
- Jul 9, 2019 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190710-086PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0627 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0031 mg/l
-
- Collected
- Jul 9, 2019 07:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190710-085PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.317 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 9, 2019 04:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190710-084PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0127 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0008 mg/l
-
- Collected
- Jul 9, 2019 08:10
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190710-083PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.6905 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0012 mg/l
-
- Collected
- Jul 9, 2019 06:40
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190710-082PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3978 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 9, 2019 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190710-081PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0399 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0005 mg/l
-
- Collected
- Jul 9, 2019 05:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190710-080PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0826 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 17, 2019 13:20
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 190418-009TH
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Chloroform 2941 EPA method 524.2
- Result
- 16.9 ug/l
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 12.9 ug/l
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 7.72 ug/l
-
TTHM 2950
- Result
- 37.5 ug/l
-
- Collected
- Apr 17, 2019 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 190418-009HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.008 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.007 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.019 mg/l
- Monitoring period
- Jan 1, 2019 – Dec 31, 2019
Routine (10).