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.
| 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 141–150 of 487 samples, newest first — collected August 1, 2023 to October 3, 2023. The summary above covers all 487.
17 results from the 10 samples listed here: 11 detected, 6 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 9 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0099 mg/l , sample collected Oct 3, 2023 07:45, sampling point LC0034 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 3, 2023 07:45, sampling point LC0034 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0062 mg/l , sample collected Oct 3, 2023 09:00, sampling point LC0035 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| 0.7 ug/l , sample collected Oct 3, 2023 09:00, sampling point LC0035 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0005 mg/l , sample collected Oct 3, 2023 12:00, sampling point LC0037 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 3, 2023 12:00, sampling point LC0037 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0006 mg/l , sample collected Oct 3, 2023 11:00, sampling point LC0038 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 3, 2023 11:00, sampling point LC0038 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0008 mg/l , sample collected Oct 3, 2023 14:00, sampling point LC0039 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 3, 2023 14:00, sampling point LC0039 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0006 mg/l , sample collected Oct 3, 2023 14:00, sampling point LC0040 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 3, 2023 14:00, sampling point LC0040 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0302 mg/l , sample collected Oct 2, 2023 06:10, sampling point LC0002 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 2, 2023 06:10, sampling point LC0002 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 24.7 ug/l , sample collected Aug 1, 2023 13:25, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2023 – Sep 30, 2023 |
|
||
| 18.6 ug/l , sample collected Aug 1, 2023 12:10, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2023 – Sep 30, 2023 |
|
||
| 37.2 ug/l , sample collected Aug 1, 2023 13:20, sampling point SM2 | TTHM 2950 EPA method 524.2 | Jul 1, 2023 – Sep 30, 2023 |
-
- Collected
- Oct 3, 2023 07:45
- Sampling point
- LC0034 Location withheld
- Sample type
- Routine
- Lab sample
- PB-231005-033
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0099 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 3, 2023 09:00
- Sampling point
- LC0035 Location withheld
- Sample type
- Routine
- Lab sample
- PB-231005-032
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0062 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Oct 3, 2023 12:00
- Sampling point
- LC0037 Location withheld
- Sample type
- Routine
- Lab sample
- PB-231005-054
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0005 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 3, 2023 11:00
- Sampling point
- LC0038 Location withheld
- Sample type
- Routine
- Lab sample
- PB-231005-053
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0006 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 3, 2023 14:00
- Sampling point
- LC0039 Location withheld
- Sample type
- Routine
- Lab sample
- PB-231005-052
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0008 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 3, 2023 14:00
- Sampling point
- LC0040 Location withheld
- Sample type
- Routine
- Lab sample
- PB-231005-051
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0006 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 2, 2023 06:10
- Sampling point
- LC0002 Location withheld
- Sample type
- Routine
- Lab sample
- PB-231005-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0302 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 1, 2023 13:25
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- HA-230802-027
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Sep 30, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 24.7 ug/l
-
- Collected
- Aug 1, 2023 12:10
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- HA-230802-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Sep 30, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 18.6 ug/l
-
- Collected
- Aug 1, 2023 13:20
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- TH-230802-027
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Sep 30, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 37.2 ug/l
Routine (10).