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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

MS0480019 , Cason Water Association

18 of the 56 analytes this system has been tested for have been detected at least once, across 487 samples on record.

The other 38 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 487 samples on record, detections range from October 8, 2003 to April 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 Cason 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 320 of 320 results Sep 6, 2007 Nov 6, 2024
Lead 1030 Inorganic Chemical 84 of 320 results Sep 6, 2007 Nov 5, 2024
TTHM 2950 Organic Chemical 32 of 32 results Jul 12, 2004 Apr 29, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 24 of 31 results Jun 17, 2010 Aug 25, 2025
Barium 1010 Inorganic Chemical 13 of 13 results Oct 8, 2003 May 8, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 15, 2012 Oct 10, 2012
Chromium 1020 Inorganic Chemical 9 of 13 results Mar 8, 2004 May 8, 2019
Chloroform 2941 Organic Chemical 8 of 10 results Aug 14, 2013 Apr 29, 2026
Nickel 1036 Inorganic Chemical 7 of 13 results Mar 8, 2004 May 8, 2019
Bromodichloromethane 2943 Organic Chemical 6 of 10 results Feb 20, 2024 Apr 29, 2026
Dibromochloromethane 2944 Organic Chemical 6 of 10 results Feb 20, 2024 Apr 29, 2026
Dichloroacetic Acid 2451 Organic Chemical 5 of 11 results Feb 20, 2024 Aug 25, 2025
Trichloroacetic Acid 2452 Organic Chemical 5 of 11 results Feb 20, 2024 Aug 25, 2025
Fluoride 1025 Inorganic Chemical 5 of 13 results Oct 8, 2003 May 8, 2019
Sodium 1052 Inorganic Chemical 4 of 4 results Sep 16, 2019 Mar 2, 2022
Cadmium 1015 Inorganic Chemical 3 of 13 results Mar 8, 2004 Apr 4, 2005
Selenium 1045 Inorganic Chemical 2 of 13 results Apr 4, 2005 Apr 4, 2005
Sulfate 1055 Inorganic Chemical 2 of 2 results Oct 8, 2003 Mar 8, 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 151–160 of 487 samples, newest first — collected April 26, 2023 to August 1, 2023. The summary above covers all 487.

19 results from the 10 samples listed here: 11 detected, 8 not detected. Across the whole record it is 545 of 1,464. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 10 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 Cason Water Association, every result from 151 to 160 of 487 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
Aug 1, 2023 12:10
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-230802-026
Laboratory
MSDH Lab
42.2 ug/l , sample collected Aug 1, 2023 12:10, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2023 – Sep 30, 2023
Collected
May 22, 2023 07:15
Sampling point
LC0026 Location withheld
Sample type
Routine
Lab sample
PB-230524-001
Laboratory
MSDH Lab
0.0059 mg/l , sample collected May 22, 2023 07:15, sampling point LC0026 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2023 07:15, sampling point LC0026 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Collected
Apr 26, 2023 05:20
Sampling point
LC0037 Location withheld
Sample type
Routine
Lab sample
PB-230427-063
Laboratory
MSDH Lab
0.017 mg/l , sample collected Apr 26, 2023 05:20, sampling point LC0037 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 26, 2023 05:20, sampling point LC0037 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Collected
Apr 26, 2023 06:00
Sampling point
LC0030 Location withheld
Sample type
Routine
Lab sample
PB-230427-073
Laboratory
MSDH Lab
0.0067 mg/l , sample collected Apr 26, 2023 06:00, sampling point LC0030 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 26, 2023 06:00, sampling point LC0030 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Collected
Apr 26, 2023 06:00
Sampling point
LC0024 Location withheld
Sample type
Routine
Lab sample
PB-230427-094
Laboratory
MSDH Lab
0.008 mg/l , sample collected Apr 26, 2023 06:00, sampling point LC0024 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 26, 2023 06:00, sampling point LC0024 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Collected
Apr 26, 2023 04:50
Sampling point
LC0022 Location withheld
Sample type
Routine
Lab sample
PB-230427-092
Laboratory
MSDH Lab
0.0823 mg/l , sample collected Apr 26, 2023 04:50, sampling point LC0022 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
0.6 ug/l , sample collected Apr 26, 2023 04:50, sampling point LC0022 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Collected
Apr 26, 2023 05:45
Sampling point
LC0019 Location withheld
Sample type
Routine
Lab sample
PB-230427-084
Laboratory
MSDH Lab
0.0357 mg/l , sample collected Apr 26, 2023 05:45, sampling point LC0019 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 26, 2023 05:45, sampling point LC0019 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Collected
Apr 26, 2023 08:00
Sampling point
LC0017 Location withheld
Sample type
Routine
Lab sample
PB-230427-083
Laboratory
MSDH Lab
0.0078 mg/l , sample collected Apr 26, 2023 08:00, sampling point LC0017 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 26, 2023 08:00, sampling point LC0017 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Collected
Apr 26, 2023 06:35
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-230427-082
Laboratory
MSDH Lab
0.0125 mg/l , sample collected Apr 26, 2023 06:35, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 26, 2023 06:35, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Collected
Apr 26, 2023 07:20
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-230427-081
Laboratory
MSDH Lab
0.0058 mg/l , sample collected Apr 26, 2023 07:20, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 26, 2023 07:20, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2023 – Jun 30, 2023

Routine (10).