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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.

Every analyte ever detected for Town of Stonewall, with how many results found it and when it was first and last detected. Covers the whole record, not only 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 241–250 of 323 samples, newest first — collected September 5, 2001 to March 19, 2002. The summary above covers all 323.

50 results from the 10 samples listed here: 22 detected, 28 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.

Chemical and radiological sample results for Town of Stonewall, every result from 241 to 250 of 323 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Mar 19, 2002
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
020320-003IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.005 mg/l , sample collected Mar 19, 2002, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.006 mg/l , sample collected Mar 19, 2002, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Fluoride 1025 EPA method 300.0 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Collected
Mar 19, 2002
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
020320-002IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Arsenic 1005 EPA method 200.8 Not recorded
0.002 mg/l , sample collected Mar 19, 2002, sampling point TF102 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Cadmium 1015 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Chromium 1020 EPA method 200.8 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Mercury 1035 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Mar 19, 2002, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Selenium 1045 EPA method 200.8 Not recorded
8.66 mg/l , sample collected Mar 19, 2002, sampling point TF102 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
Mar 19, 2002
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
020320-001IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF101 Arsenic 1005 EPA method 200.8 Not recorded
0.002 mg/l , sample collected Mar 19, 2002, sampling point TF101 Barium 1010 EPA method 200.8 Not recorded
0.0001 mg/l , sample collected Mar 19, 2002, sampling point TF101 Cadmium 1015 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF101 Chromium 1020 EPA method 200.8 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF101 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF101 Mercury 1035 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Mar 19, 2002, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF101 Selenium 1045 EPA method 200.8 Not recorded
7.8 mg/l , sample collected Mar 19, 2002, sampling point TF101 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 19, 2002, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
Sep 6, 2001
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
010907-013PB
Laboratory
MSDH Lab
0.095 mg/l , sample collected Sep 6, 2001, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Sep 6, 2001, sampling point DS000 Lead 1030 Not recorded
Collected
Sep 5, 2001
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
010906-042PB
Laboratory
MSDH Lab
0.092 mg/l , sample collected Sep 5, 2001, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Sep 5, 2001, sampling point DS000 Lead 1030 Not recorded
Collected
Sep 5, 2001
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
010906-041PB
Laboratory
MSDH Lab
0.439 mg/l , sample collected Sep 5, 2001, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Sep 5, 2001, sampling point DS000 Lead 1030 Not recorded
Collected
Sep 5, 2001
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
010906-040PB
Laboratory
MSDH Lab
0.041 mg/l , sample collected Sep 5, 2001, sampling point DS000 Copper, Free 1022 Not recorded
0.002 mg/l , sample collected Sep 5, 2001, sampling point DS000 Lead 1030 Not recorded
Collected
Sep 5, 2001
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
010906-039PB
Laboratory
MSDH Lab
0.194 mg/l , sample collected Sep 5, 2001, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Sep 5, 2001, sampling point DS000 Lead 1030 Not recorded
Collected
Sep 5, 2001
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
010906-038PB
Laboratory
MSDH Lab
0.038 mg/l , sample collected Sep 5, 2001, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Sep 5, 2001, sampling point DS000 Lead 1030 Not recorded
Collected
Sep 5, 2001
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
010906-032PB
Laboratory
MSDH Lab
0.264 mg/l , sample collected Sep 5, 2001, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Sep 5, 2001, sampling point DS000 Lead 1030 Not recorded

Routine (10).