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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 231–240 of 297 samples, newest first — collected September 11, 2007 to May 6, 2008. The summary above covers all 297.

39 results from the 10 samples listed here: 17 detected, 22 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 231 to 240 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
May 6, 2008
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
080507-010VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 6, 2008, sampling point TF080 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-353PB
Laboratory
MSDH Lab
0.1224 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.0022 mg/l , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-351PB
Laboratory
MSDH Lab
0.0177 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.0014 mg/l , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-346PB
Laboratory
MSDH Lab
0.1329 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.0028 mg/l , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-345PB
Laboratory
MSDH Lab
0.109 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.0012 mg/l , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-342PB
Laboratory
MSDH Lab
0.0692 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.0009 mg/l , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-341PB
Laboratory
MSDH Lab
0.049 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-340PB
Laboratory
MSDH Lab
0.0567 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.0033 mg/l , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-339PB
Laboratory
MSDH Lab
0.0726 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.0013 mg/l , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-338PB
Laboratory
MSDH Lab
0.2726 mg/l , sample collected Sep 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.0026 mg/l , sample collected Sep 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007

Routine (10).