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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 171–180 of 323 samples, newest first — collected May 12, 2008 to July 1, 2009. The summary above covers all 323.

47 results from the 10 samples listed here: 30 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.

Chemical and radiological sample results for Town of Stonewall, every result from 171 to 180 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
Jul 1, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090702-008TH
Laboratory
MSDH Lab
30.1 ug/l , sample collected Jul 1, 2009, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 1, 2009, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
17.1 ug/l , sample collected Jul 1, 2009, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
7.94 ug/l , sample collected Jul 1, 2009, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
55.14 ug/l , sample collected Jul 1, 2009, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Collected
May 4, 2009
Sampling point
SM1 SM1
Sample type
Routine
Lab sample
090505-006TH
Laboratory
MSDH Lab
17 ug/l , sample collected May 4, 2009, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
11.6 ug/l , sample collected May 4, 2009, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
6.48 ug/l , sample collected May 4, 2009, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
35.08 ug/l , sample collected May 4, 2009, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
May 4, 2009
Sampling point
SM2 SM2
Sample type
Routine
Lab sample
090505-005TH
Laboratory
MSDH Lab
17.3 ug/l , sample collected May 4, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
12.2 ug/l , sample collected May 4, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
6.57 ug/l , sample collected May 4, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
36.07 ug/l , sample collected May 4, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
May 4, 2009
Sampling point
SM2 SM2
Sample type
Routine
Lab sample
090505-016HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.009 mg/l , sample collected May 4, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.008 mg/l , sample collected May 4, 2009, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.002 mg/l , sample collected May 4, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.01 mg/l , sample collected May 4, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
May 4, 2009
Sampling point
SM1 SM1
Sample type
Routine
Lab sample
090505-015HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.009 mg/l , sample collected May 4, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.008 mg/l , sample collected May 4, 2009, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.002 mg/l , sample collected May 4, 2009, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.01 mg/l , sample collected May 4, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Apr 8, 2009
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
090409-069NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Apr 8, 2009, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Apr 8, 2009, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Apr 8, 2009, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Apr 8, 2009
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
090409-068NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Apr 8, 2009, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Apr 8, 2009, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Apr 8, 2009, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Jun 23, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080624-010HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Jun 23, 2008, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Jan 1, 2008 – Dec 31, 2008
0.01 mg/l , sample collected Jun 23, 2008, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Jan 1, 2008 – Dec 31, 2008
0.008 mg/l , sample collected Jun 23, 2008, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 23, 2008, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Jan 1, 2008 – Dec 31, 2008
0.003 mg/l , sample collected Jun 23, 2008, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Jan 1, 2008 – Dec 31, 2008
0.024 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 23, 2008, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2008 – Dec 31, 2008
Collected
Jun 23, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080624-010TH
Laboratory
MSDH Lab
19.9 ug/l , sample collected Jun 23, 2008, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.01 ug/l , sample collected Jun 23, 2008, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
16.9 ug/l , sample collected Jun 23, 2008, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
11.2 ug/l , sample collected Jun 23, 2008, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
49.01 ug/l , sample collected Jun 23, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2008
Collected
May 12, 2008
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
080513-048NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 12, 2008, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 12, 2008, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 12, 2008, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008

Routine (10).