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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

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.

Every analyte ever detected for Calhoun 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 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 171–180 of 297 samples, newest first — collected June 25, 2013 to June 25, 2013. The summary above covers all 297.

20 results from the 10 samples listed here: 10 detected, 10 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.

Chemical and radiological sample results for Calhoun Water Association, every result from 171 to 180 of 297 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
Jun 25, 2013 05:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-051PB
Laboratory
MSDH Lab
0.009 mg/l , sample collected Jun 25, 2013 05:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 05:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-050PB
Laboratory
MSDH Lab
0.0062 mg/l , sample collected Jun 25, 2013, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-049PB
Laboratory
MSDH Lab
0.0049 mg/l , sample collected Jun 25, 2013 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-048PB
Laboratory
MSDH Lab
0.004 mg/l , sample collected Jun 25, 2013 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-047PB
Laboratory
MSDH Lab
0.0091 mg/l , sample collected Jun 25, 2013 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013 05:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-046PB
Laboratory
MSDH Lab
0.0178 mg/l , sample collected Jun 25, 2013 05:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 05:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-045PB
Laboratory
MSDH Lab
0.0012 mg/l , sample collected Jun 25, 2013 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013 06:57
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-042PB
Laboratory
MSDH Lab
0.0218 mg/l , sample collected Jun 25, 2013 06:57, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 06:57, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-041PB
Laboratory
MSDH Lab
0.0329 mg/l , sample collected Jun 25, 2013 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 25, 2013 05:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130626-040PB
Laboratory
MSDH Lab
0.002 mg/l , sample collected Jun 25, 2013 05:35, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 05:35, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013

Routine (10).