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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 121–130 of 323 samples, newest first — collected April 24, 2012 to January 27, 2014. The summary above covers all 323.

56 results from the 10 samples listed here: 14 detected, 42 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 121 to 130 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
Jan 27, 2014 13:30
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
140128-041NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 27, 2014 13:30, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 27, 2014 13:30, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 27, 2014 13:30, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Jun 5, 2013 02:07
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130606-008TH
Laboratory
MSDH Lab
26.1 ug/l , sample collected Jun 5, 2013 02:07, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2013 02:07, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
19 ug/l , sample collected Jun 5, 2013 02:07, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
10.2 ug/l , sample collected Jun 5, 2013 02:07, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
55 ug/l , sample collected Jun 5, 2013 02:07, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Collected
Jan 23, 2013 01:49
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
130124-073NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 01:49, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 01:49, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 01:49, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Jul 11, 2012 13:00
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
201211120012
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Jul 11, 2012 13:00, sampling point TF104 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 13:00, sampling point TF104 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.308 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 13:00, sampling point TF104 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 13:00, sampling point TF104 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 10, 2012 13:00
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
120711-026
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Jul 10, 2012 13:00, sampling point TF104 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:00, sampling point TF104 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.308 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:00, sampling point TF104 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:00, sampling point TF104 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 10, 2012 13:15
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
120711-026RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2012 13:15, sampling point TF104 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jun 28, 2012 01:25
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
120629-003VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 28, 2012 01:25, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Collected
Jun 5, 2012 01:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120606-016TH
Laboratory
MSDH Lab
15.7 ug/l , sample collected Jun 5, 2012 01:10, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2012 01:10, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
12.1 ug/l , sample collected Jun 5, 2012 01:10, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
7.11 ug/l , sample collected Jun 5, 2012 01:10, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
34.9 ug/l , sample collected Jun 5, 2012 01:10, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Collected
Jun 5, 2012 01:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120606-016HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 5, 2012 01:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.012 mg/l , sample collected Jun 5, 2012 01:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Jun 5, 2012 01:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 5, 2012 01:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 5, 2012 01:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Jun 5, 2012 01:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2012 – Dec 31, 2012
Collected
Apr 24, 2012 11:00
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
120425-055
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Apr 24, 2012 11:00, sampling point TF104 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 11:00, sampling point TF104 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.308 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 11:00, sampling point TF104 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 11:00, sampling point TF104 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012

Routine (10).