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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

MS0090024 , Thorn Water Association

28 of the 57 analytes this system has been tested for have been detected at least once, across 419 samples on record.

The other 29 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 419 samples on record, detections range from November 30, 1993 to June 29, 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 Thorn Water Association, 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 115 of 149 results Nov 30, 1993 Jun 17, 2025
Lead 1030 Inorganic Chemical 99 of 149 results Nov 30, 1993 Jun 17, 2025
Barium 1010 Inorganic Chemical 31 of 31 results Mar 19, 2002 Jun 29, 2026
Fluoride 1025 Inorganic Chemical 31 of 31 results Mar 19, 2002 Jun 29, 2026
Xylenes, Total 2955 Organic Chemical 23 of 76 results Jul 6, 2004 Aug 2, 2010
Chromium 1020 Inorganic Chemical 17 of 31 results Mar 19, 2002 Jan 13, 2025
TTHM 2950 Organic Chemical 16 of 23 results Jul 11, 2007 Apr 20, 2026
Arsenic 1005 Inorganic Chemical 13 of 31 results Feb 14, 2005 Jan 9, 2024
Nickel 1036 Inorganic Chemical 11 of 29 results Feb 14, 2005 Apr 21, 2014
Bromoform 2942 Organic Chemical 10 of 18 results Dec 13, 2023 Apr 20, 2026
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 15 results Mar 5, 2012 Oct 3, 2012
Selenium 1045 Inorganic Chemical 9 of 31 results Jan 12, 2004 Mar 24, 2008
Dibromochloromethane 2944 Organic Chemical 8 of 18 results Dec 13, 2023 Apr 20, 2026
Sodium 1052 Inorganic Chemical 8 of 8 results Sep 23, 2019 Oct 14, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 23 results Jul 11, 2007 Feb 21, 2024
Nitrite 1041 Inorganic Chemical 4 of 65 results Jun 5, 2006 Nov 28, 2006
Ethylbenzene 2992 Organic Chemical 4 of 76 results Jul 6, 2004 Jan 26, 2005
Cyanide 1024 Inorganic Chemical 3 of 27 results Dec 4, 2006 May 2, 2018
Nitrate-Nitrite 1038 Inorganic Chemical 3 of 65 results May 3, 2004 Nov 28, 2006
Sulfate 1055 Inorganic Chemical 3 of 4 results Mar 19, 2002 Jan 12, 2004
Dibromoacetic Acid 2454 Organic Chemical 2 of 16 results Dec 13, 2023 Jul 30, 2024
Cadmium 1015 Inorganic Chemical 2 of 31 results Feb 14, 2005 Feb 14, 2005
Toluene 2991 Organic Chemical 2 of 76 results Jan 26, 2005 Jan 26, 2005
Dichloroacetic Acid 2451 Organic Chemical 1 of 16 results Feb 21, 2024 Feb 21, 2024
Trichloroacetic Acid 2452 Organic Chemical 1 of 16 results Feb 21, 2024 Feb 21, 2024
Monochloroacetic Acid 2450 Organic Chemical 1 of 16 results Jul 13, 2020 Jul 13, 2020
Monobromoacetic Acid 2453 Organic Chemical 1 of 16 results Jul 12, 2011 Jul 12, 2011
Nitrate 1040 Inorganic Chemical 1 of 65 results May 3, 2004 May 3, 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 141–150 of 419 samples, newest first — collected June 4, 2014 to June 18, 2014. The summary above covers all 419.

39 results from the 10 samples listed here: 18 detected, 21 not detected. Across the whole record it is 436 of 2,741. 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 Thorn Water Association, every result from 141 to 150 of 419 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
Jun 18, 2014 06:25
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-051PB
Laboratory
MSDH Lab
0.4215 mg/l , sample collected Jun 18, 2014 06:25, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0012 mg/l , sample collected Jun 18, 2014 06:25, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 18, 2014 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-050PB
Laboratory
MSDH Lab
0.1755 mg/l , sample collected Jun 18, 2014 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0006 mg/l , sample collected Jun 18, 2014 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 18, 2014 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-049PB
Laboratory
MSDH Lab
0.0904 mg/l , sample collected Jun 18, 2014 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0023 mg/l , sample collected Jun 18, 2014 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 18, 2014 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-048PB
Laboratory
MSDH Lab
0.0408 mg/l , sample collected Jun 18, 2014 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0024 mg/l , sample collected Jun 18, 2014 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 18, 2014 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-047PB
Laboratory
MSDH Lab
0.0829 mg/l , sample collected Jun 18, 2014 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0091 mg/l , sample collected Jun 18, 2014 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 18, 2014 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-046PB
Laboratory
MSDH Lab
0.2727 mg/l , sample collected Jun 18, 2014 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0044 mg/l , sample collected Jun 18, 2014 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 18, 2014 08:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-045PB
Laboratory
MSDH Lab
0.0715 mg/l , sample collected Jun 18, 2014 08:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0022 mg/l , sample collected Jun 18, 2014 08:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 18, 2014 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-044PB
Laboratory
MSDH Lab
0.2806 mg/l , sample collected Jun 18, 2014 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0013 mg/l , sample collected Jun 18, 2014 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 18, 2014 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140619-042PB
Laboratory
MSDH Lab
0.0847 mg/l , sample collected Jun 18, 2014 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0017 mg/l , sample collected Jun 18, 2014 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 4, 2014 03:20
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
140605-009VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2014 03:20, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2014 – Dec 31, 2014

Routine (10).