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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

MS0680002 , Charleston Utilities

34 of the 73 analytes this system has been tested for have been detected at least once, across 343 samples on record.

The other 39 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 343 samples on record, detections range from October 27, 2003 to April 7, 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 Charleston Utilities, 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 202 of 202 results Sep 30, 2004 Aug 3, 2023
Lead 1030 Inorganic Chemical 121 of 202 results Sep 30, 2004 Aug 3, 2023
Barium 1010 Inorganic Chemical 15 of 15 results Oct 27, 2003 Apr 7, 2025
Fluoride 1025 Inorganic Chemical 12 of 21 results Mar 29, 2004 Apr 7, 2025
TTHM 2950 Organic Chemical 12 of 18 results Sep 17, 2007 Nov 25, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 10 of 18 results Jul 6, 2010 Nov 25, 2024
Sodium 1052 Inorganic Chemical 10 of 10 results Feb 12, 2009 Dec 13, 2023
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 12, 2012 Oct 9, 2012
Chromium 1020 Inorganic Chemical 9 of 15 results Oct 27, 2003 Apr 7, 2025
Chloroform 2941 Organic Chemical 7 of 13 results Aug 22, 2016 Nov 25, 2024
Nickel 1036 Inorganic Chemical 6 of 15 results Feb 10, 2010 Apr 7, 2025
Dichloroacetic Acid 2451 Organic Chemical 6 of 13 results Sep 9, 2013 Nov 25, 2024
Calcium 1016 Inorganic Chemical 6 of 6 results Feb 12, 2009 Mar 30, 2022
Chloride 1017 Inorganic Chemical 6 of 6 results Feb 12, 2009 Mar 30, 2022
Alkalinity, Total 1927 Water Quality 6 of 6 results Feb 12, 2009 Mar 30, 2022
Trichloroacetic Acid 2452 Organic Chemical 5 of 13 results Sep 9, 2013 Nov 25, 2024
Iron 1028 Inorganic Chemical 5 of 5 results Feb 12, 2009 May 13, 2010
Magnesium 1031 Inorganic Chemical 5 of 5 results Feb 12, 2009 May 13, 2010
Manganese 1032 Inorganic Chemical 5 of 5 results Feb 12, 2009 May 13, 2010
Potassium 1042 Inorganic Chemical 5 of 5 results Feb 12, 2009 May 13, 2010
Residue, Total, Filterable 1057 Water Quality 5 of 5 results Feb 12, 2009 May 13, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 5 of 5 results Feb 12, 2009 May 13, 2010
Carbon Dioxide 1901 Water Quality 5 of 5 results Feb 12, 2009 May 13, 2010
Hardness, Total (As Caco3) 1915 Water Quality 5 of 5 results Feb 12, 2009 May 13, 2010
Calculated Sodium NACA Water Quality 5 of 5 results Feb 12, 2009 May 13, 2010
Bromodichloromethane 2943 Organic Chemical 4 of 13 results Feb 27, 2024 Nov 25, 2024
Sulfate 1055 Inorganic Chemical 4 of 8 results Feb 12, 2009 May 13, 2010
Color 1905 Water Quality 3 of 3 results Feb 12, 2009 Mar 30, 2022
PH, Field Result PHFD Water Quality 3 of 3 results May 13, 2010 May 13, 2010
PH 1925 Water Quality 2 of 2 results Feb 12, 2009 Feb 12, 2009
Cadmium 1015 Inorganic Chemical 2 of 15 results Apr 26, 2005 Apr 10, 2006
Selenium 1045 Inorganic Chemical 2 of 15 results Mar 29, 2004 Apr 26, 2005
Conductivity @ 25 C Umhos/CM 1064 Water Quality 1 of 1 result Mar 30, 2022 Mar 30, 2022
Xylenes, Total 2955 Organic Chemical 1 of 18 results Aug 3, 2021 Aug 3, 2021

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 331–340 of 343 samples, newest first — collected March 29, 2004 to September 30, 2004. The summary above covers all 343.

66 results from the 10 samples listed here: 9 detected, 57 not detected. Across the whole record it is 510 of 1,365. 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 Charleston Utilities, every result from 331 to 340 of 343 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 30, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
041001-118PB
Laboratory
MSDH Lab
0.034 mg/l , sample collected Sep 30, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
0.0105 mg/l , sample collected Sep 30, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 30, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
041001-099PB
Laboratory
MSDH Lab
0.0594 mg/l , sample collected Sep 30, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
0.0028 mg/l , sample collected Sep 30, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 30, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
041001-107PB
Laboratory
MSDH Lab
0.0408 mg/l , sample collected Sep 30, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
0.0012 mg/l , sample collected Sep 30, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
Collected
Aug 30, 2004
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
040831-052VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Dichloromethane 2964 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Benzene 2990 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Toluene 2991 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 30, 2004, sampling point ST060 Styrene 2996 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Collected
Aug 18, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040819-016TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 18, 2004, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2004 – Dec 31, 2004
Collected
Aug 18, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040819-029HA
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Aug 18, 2004, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2004 – Dec 31, 2004
Collected
Jun 14, 2004
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
040615-043NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 14, 2004, sampling point ST060 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 14, 2004, sampling point ST060 Nitrate 1040 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 14, 2004, sampling point ST060 Nitrite 1041 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Collected
Jun 7, 2004
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
040608-006VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Dichloromethane 2964 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Benzene 2990 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Toluene 2991 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 7, 2004, sampling point ST060 Styrene 2996 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Collected
Mar 29, 2004
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
040330-043IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Arsenic 1005 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.044 mg/l , sample collected Mar 29, 2004, sampling point ST060 Barium 1010 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Cadmium 1015 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Chromium 1020 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.102 mg/l , sample collected Mar 29, 2004, sampling point ST060 Fluoride 1025 EPA method 300.0 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Mercury 1035 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Nickel 1036 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Mar 29, 2004, sampling point ST060 Selenium 1045 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Antimony, Total 1074 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Thallium, Total 1085 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Collected
Mar 29, 2004
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
040330-037CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Mar 29, 2004, sampling point ST060 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004

Routine (10).