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
MS0340001 , Calhoun Water Association
17 of the 54 analytes this system has been tested for have been detected at least once, across 297 samples on record.
The other 37 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 297 samples on record, detections range from September 24, 2003 to September 8, 2025. 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 | 139 of 141 results | Sep 11, 2007 | Sep 24, 2024 |
| Lead 1030 | Inorganic Chemical | 33 of 141 results | Sep 11, 2007 | Jul 24, 2024 |
| Barium 1010 | Inorganic Chemical | 20 of 20 results | Sep 24, 2003 | Feb 26, 2025 |
| TTHM 2950 | Organic Chemical | 8 of 21 results | Aug 7, 2007 | Sep 8, 2025 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 26, 2019 | Feb 6, 2025 |
| Chloroform 2941 | Organic Chemical | 5 of 16 results | May 15, 2024 | Sep 8, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 16 results | May 15, 2024 | Sep 8, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 4 of 21 results | Aug 7, 2007 | Sep 8, 2020 |
| Nickel 1036 | Inorganic Chemical | 4 of 20 results | Jan 12, 2009 | Oct 14, 2019 |
| Sulfate 1055 | Inorganic Chemical | 4 of 4 results | Sep 24, 2003 | Feb 23, 2004 |
| Chromium 1020 | Inorganic Chemical | 3 of 20 results | Apr 9, 2012 | Apr 8, 2015 |
| Fluoride 1025 | Inorganic Chemical | 2 of 20 results | Mar 21, 2005 | Feb 26, 2025 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 15 results | Aug 14, 2018 | Sep 8, 2020 |
| Cyanide 1024 | Inorganic Chemical | 2 of 20 results | Sep 21, 2009 | May 7, 2012 |
| Dichloromethane 2964 | Organic Chemical | 2 of 24 results | Aug 4, 2004 | Aug 4, 2004 |
| Dibromochloromethane 2944 | Organic Chemical | 1 of 16 results | Sep 8, 2025 | Sep 8, 2025 |
| Nitrite 1041 | Inorganic Chemical | 1 of 44 results | Feb 13, 2012 | Feb 13, 2012 |
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 21–30 of 297 samples, newest first — collected July 23, 2024 to July 24, 2024. The summary above covers all 297.
20 results from the 10 samples listed here: 11 detected, 9 not detected. Across the whole record it is 241 of 1,360. 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 |
|---|---|---|
|
||
| 0.0531 mg/l , sample collected Jul 24, 2024 08:45, sampling point LC0027 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 24, 2024 08:45, sampling point LC0027 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0187 mg/l , sample collected Jul 24, 2024 10:15, sampling point LC0029 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 24, 2024 10:15, sampling point LC0029 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0177 mg/l , sample collected Jul 23, 2024 09:15, sampling point LC0032 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 09:15, sampling point LC0032 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0971 mg/l , sample collected Jul 23, 2024 09:20, sampling point LC0012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 09:20, sampling point LC0012 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0171 mg/l , sample collected Jul 23, 2024 09:30, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 09:30, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0126 mg/l , sample collected Jul 23, 2024 09:40, sampling point LC0006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 09:40, sampling point LC0006 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0332 mg/l , sample collected Jul 23, 2024 09:50, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| 1.7 ug/l , sample collected Jul 23, 2024 09:50, sampling point LC0007 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0432 mg/l , sample collected Jul 23, 2024 10:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 10:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0266 mg/l , sample collected Jul 23, 2024 10:10, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 10:10, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0056 mg/l , sample collected Jul 23, 2024 10:15, sampling point LC0011 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 10:15, sampling point LC0011 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
-
- Collected
- Jul 24, 2024 08:45
- Sampling point
- LC0027 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240725-108
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0531 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 24, 2024 10:15
- Sampling point
- LC0029 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240725-110
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0187 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 23, 2024 09:15
- Sampling point
- LC0032 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240724-070
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0177 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 23, 2024 09:20
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240724-065
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0971 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 23, 2024 09:30
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240724-069
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0171 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 23, 2024 09:40
- Sampling point
- LC0006 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240724-064
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0126 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 23, 2024 09:50
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240724-068
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0332 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.7 ug/l
-
- Collected
- Jul 23, 2024 10:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-240724-063
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0432 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 23, 2024 10:10
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240724-062
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0266 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 23, 2024 10:15
- Sampling point
- LC0011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240724-067
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0056 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).