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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 61–70 of 323 samples, newest first — collected July 9, 2019 to May 10, 2021. The summary above covers all 323.

30 results from the 10 samples listed here: 13 detected, 17 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.

Units in this table

Sodium is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

We withheld the location of 2 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.

Chemical and radiological sample results for Town of Stonewall, every result from 61 to 70 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
May 10, 2021 13:05
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
TH-210511-017
Laboratory
MSDH Lab
34.7 ug/l , sample collected May 10, 2021 13:05, sampling point SMH TTHM 2950 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Collected
Apr 20, 2021 13:10
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
CN-210421-016
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 20, 2021 13:10, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Feb 2, 2021 13:15
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NA-210203-010
Laboratory
MSDH Lab
83.5 mg/l , sample collected Feb 2, 2021 13:15, sampling point TF104 Sodium 1052 EPA method 200.7 Not recorded
Collected
Feb 2, 2021 13:10
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-210203-017
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 2, 2021 13:10, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 2, 2021 13:10, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 2, 2021 13:10, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jul 21, 2020 13:15
Sampling point
SMT Location withheld
Sample type
Routine
Lab sample
200722-005TH
Laboratory
MSDH Lab
19.3 ug/l , sample collected Jul 21, 2020 13:15, sampling point SMT Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2020 13:15, sampling point SMT Bromoform 2942 EPA method 524.2 Not recorded
12.8 ug/l , sample collected Jul 21, 2020 13:15, sampling point SMT Bromodichloromethane 2943 EPA method 524.2 Not recorded
6.22 ug/l , sample collected Jul 21, 2020 13:15, sampling point SMT Dibromochloromethane 2944 EPA method 524.2 Not recorded
38.3 ug/l , sample collected Jul 21, 2020 13:15, sampling point SMT TTHM 2950 Jan 1, 2020 – Dec 31, 2020
Collected
Apr 7, 2020 13:10
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
200408-008IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2020 13:10, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0267 mg/l , sample collected Apr 7, 2020 13:10, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2020 13:10, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0027 mg/l , sample collected Apr 7, 2020 13:10, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.126 mg/l , sample collected Apr 7, 2020 13:10, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2020 13:10, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2020 13:10, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2020 13:10, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2020 13:10, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2020 13:10, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2020 13:10, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jan 28, 2020 13:10
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
200129-033NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 28, 2020 13:10, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 28, 2020 13:10, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 28, 2020 13:10, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Sep 16, 2019 11:00
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
680-174251-69
Laboratory
Test America-Savannah
69000 ug/l , sample collected Sep 16, 2019 11:00, sampling point TF104 Sodium 1052 EPA method 200.7 Not recorded
Collected
Jul 9, 2019 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190710-089PB
Laboratory
MSDH Lab
0.0322 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
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2019 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 9, 2019 05:55
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190710-088PB
Laboratory
MSDH Lab
0.0079 mg/l , sample collected Jul 9, 2019 05:55, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0041 mg/l , sample collected Jul 9, 2019 05:55, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019

Routine (10).