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 211–220 of 297 samples, newest first — collected September 21, 2009 to June 29, 2010. The summary above covers all 297.
23 results from the 10 samples listed here: 10 detected, 13 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0183 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.004 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0035 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0077 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0118 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0269 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.006 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0016 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0067 mg/l , sample collected Jun 28, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 28, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 21, 2009, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 21, 2009, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 21, 2009, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 21, 2009, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Sep 21, 2009, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2008 – Dec 31, 2010 |
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-096PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0183 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-095PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.004 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-094PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0035 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-093PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0077 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-092PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0118 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-091PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0269 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-087PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.006 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-086PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0016 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 28, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-110PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0067 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 21, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090922-003TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
Routine (10).