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 261–270 of 487 samples, newest first — collected July 20, 2021 to July 20, 2021. The summary above covers all 487.
20 results from the 10 samples listed here: 14 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 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0294 mg/l , sample collected Jul 20, 2021 06:15, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 1.4 ug/l , sample collected Jul 20, 2021 06:15, sampling point LC0009 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.2 mg/l , sample collected Jul 20, 2021 05:45, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 1.6 ug/l , sample collected Jul 20, 2021 05:45, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0881 mg/l , sample collected Jul 20, 2021 04:00, sampling point LC0011 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 1 ug/l , sample collected Jul 20, 2021 04:00, sampling point LC0011 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0711 mg/l , sample collected Jul 20, 2021 07:45, sampling point LC0023 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2021 07:45, sampling point LC0023 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0354 mg/l , sample collected Jul 20, 2021 07:00, sampling point LC0027 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2021 07:00, sampling point LC0027 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0054 mg/l , sample collected Jul 20, 2021 06:00, sampling point LC0026 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2021 06:00, sampling point LC0026 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0265 mg/l , sample collected Jul 20, 2021 06:00, sampling point LC0036 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2021 06:00, sampling point LC0036 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0013 mg/l , sample collected Jul 20, 2021 07:15, sampling point LC0029 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2021 07:15, sampling point LC0029 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0518 mg/l , sample collected Jul 20, 2021 03:03, sampling point LC0005 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 1.1 ug/l , sample collected Jul 20, 2021 03:03, sampling point LC0005 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0195 mg/l , sample collected Jul 20, 2021 09:00, sampling point LC0024 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2021 09:00, sampling point LC0024 | Lead 1030 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
-
- Collected
- Jul 20, 2021 06:15
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-068
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0294 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.4 ug/l
-
- Collected
- Jul 20, 2021 05:45
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-067
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.6 ug/l
-
- Collected
- Jul 20, 2021 04:00
- Sampling point
- LC0011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-065
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0881 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1 ug/l
-
- Collected
- Jul 20, 2021 07:45
- Sampling point
- LC0023 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-064
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0711 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 20, 2021 07:00
- Sampling point
- LC0027 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-063
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0354 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 20, 2021 06:00
- Sampling point
- LC0026 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-062
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0054 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 20, 2021 06:00
- Sampling point
- LC0036 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-061
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0265 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 20, 2021 07:15
- Sampling point
- LC0029 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-060
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0013 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 20, 2021 03:03
- Sampling point
- LC0005 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-066
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0518 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.1 ug/l
-
- Collected
- Jul 20, 2021 09:00
- Sampling point
- LC0024 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210722-059
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0195 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).