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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 251–260 of 297 samples, newest first — collected February 13, 2006 to September 11, 2007. The summary above covers all 297.

45 results from the 10 samples listed here: 5 detected, 40 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 251 to 260 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
Sep 11, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070912-291PB
Laboratory
MSDH Lab
0.0047 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
Aug 7, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070808-016HA
Laboratory
MSDH Lab
0.0015 mg/l 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 Aug 7, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2007
Collected
Aug 7, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070808-017TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2007, 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 Aug 7, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
May 2, 2007
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
070503-041NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 2, 2007, sampling point TF081 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 2, 2007, sampling point TF081 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 2, 2007, sampling point TF081 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
May 2, 2007
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
070503-042NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 2, 2007, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 2, 2007, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 2, 2007, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Jun 26, 2006
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
060627-012NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 26, 2006, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 26, 2006, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 26, 2006, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jun 26, 2006
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
060627-011NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 26, 2006, sampling point TF081 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 26, 2006, sampling point TF081 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 26, 2006, sampling point TF081 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Feb 13, 2006
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
060214-046IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.069749 mg/l , sample collected Feb 13, 2006, sampling point TF081 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Uranium-238 4009 Not recorded
Collected
Feb 13, 2006
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
060214-045IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.068236 mg/l , sample collected Feb 13, 2006, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF080 Uranium-238 4009 Not recorded
Collected
Feb 13, 2006
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
060214-009CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007

Routine (10).