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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 31–40 of 343 samples, newest first — collected August 3, 2023 to August 3, 2023. The summary above covers all 343.

20 results from the 10 samples listed here: 13 detected, 7 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.

We withheld the location of 9 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Charleston Utilities, every result from 31 to 40 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
Aug 3, 2023 06:15
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-230804-040
Laboratory
MSDH Lab
0.0235 mg/l , sample collected Aug 3, 2023 06:15, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 3, 2023 06:15, sampling point LC0009 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 08:30
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230804-016
Laboratory
MSDH Lab
0.0206 mg/l , sample collected Aug 3, 2023 08:30, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Aug 3, 2023 08:30, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 07:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230804-035
Laboratory
MSDH Lab
0.0188 mg/l , sample collected Aug 3, 2023 07:00, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 3, 2023 07:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 07:50
Sampling point
LC0008 Location withheld
Sample type
Routine
Lab sample
PB-230804-033
Laboratory
MSDH Lab
0.0196 mg/l , sample collected Aug 3, 2023 07:50, sampling point LC0008 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 3, 2023 07:50, sampling point LC0008 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 09:03
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230804-037
Laboratory
MSDH Lab
0.0201 mg/l , sample collected Aug 3, 2023 09:03, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Aug 3, 2023 09:03, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 07:40
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230804-036
Laboratory
MSDH Lab
0.0195 mg/l , sample collected Aug 3, 2023 07:40, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Aug 3, 2023 07:40, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 08:32
Sampling point
LC0007 Location withheld
Sample type
Routine
Lab sample
PB-230804-031
Laboratory
MSDH Lab
0.0241 mg/l , sample collected Aug 3, 2023 08:32, sampling point LC0007 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 3, 2023 08:32, sampling point LC0007 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230804-039
Laboratory
MSDH Lab
0.0191 mg/l , sample collected Aug 3, 2023 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 3, 2023 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 08:10
Sampling point
LC0036 Location withheld
Sample type
Routine
Lab sample
PB-230804-020
Laboratory
MSDH Lab
0.0275 mg/l , sample collected Aug 3, 2023 08:10, sampling point LC0036 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 3, 2023 08:10, sampling point LC0036 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 3, 2023 06:10
Sampling point
LC0034 Location withheld
Sample type
Routine
Lab sample
PB-230804-015
Laboratory
MSDH Lab
0.0294 mg/l , sample collected Aug 3, 2023 06:10, sampling point LC0034 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 3, 2023 06:10, sampling point LC0034 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).