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; the list of samples further down is narrowed.

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

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 1–10 of 12 samples, newest first — collected April 7, 2025 to February 26, 2026. The summary above covers all 12.

41 results from the 10 samples listed here: 8 detected, 33 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 2 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 1 to 10 of 12 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 Feb 26, 2026 09:40 Sampling point SM2 Location withheld Sample type Routine Lab sample 810-182199-2 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM2	Monochloroacetic Acid 2450 EPA method 552.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM2	Dichloroacetic Acid 2451 EPA method 552.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM2	Trichloroacetic Acid 2452 EPA method 552.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM2	Monobromoacetic Acid 2453 EPA method 552.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM2	Dibromoacetic Acid 2454 EPA method 552.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 2 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM2	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jan 1, 2026 – Dec 31, 2026
Collected Feb 26, 2026 09:40 Sampling point SM1 Location withheld Sample type Routine Lab sample 810-182199-1 Laboratory Eurofins Eaton Analytical South Bend in
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM1	Chloroform 2941 EPA method 524.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM1	Bromoform 2942 EPA method 524.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM1	Bromodichloromethane 2943 EPA method 524.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM1	Dibromochloromethane 2944 EPA method 524.2	Jan 1, 2026 – Dec 31, 2026
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2026 09:40, sampling point SM1	TTHM 2950 EPA method 524.2	Jan 1, 2026 – Dec 31, 2026
Collected Nov 19, 2025 13:30 Sampling point TF080 Sample type Routine Lab sample CN-251120-004 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Nov 19, 2025 13:30, sampling point TF080	Cyanide 1024 EPA method QC10204001X	Jan 1, 2023 – Dec 31, 2025
Collected Nov 19, 2025 13:10 Sampling point ST060 Tank S060 Sample type Routine Lab sample CN-251120-003 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Nov 19, 2025 13:10, sampling point ST060	Cyanide 1024 EPA method QC10204001X	Jan 1, 2023 – Dec 31, 2025
Collected Sep 16, 2025 15:17 Sampling point ST060 Tank S060 Sample type Routine Lab sample IN-250917-002 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 16, 2025 15:17, sampling point ST060	Mercury 1035 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Collected Sep 16, 2025 15:02 Sampling point TF080 Sample type Routine Lab sample IN-250917-001 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 16, 2025 15:02, sampling point TF080	Mercury 1035 EPA method 200.8	Not recorded
Collected Apr 15, 2025 13:46 Sampling point TF080 Sample type Routine Lab sample NI-250416-050 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 13:46, sampling point TF080	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 13:46, sampling point TF080	Nitrate 1040 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 13:46, sampling point TF080	Nitrite 1041 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Collected Apr 15, 2025 13:38 Sampling point ST060 Tank S060 Sample type Routine Lab sample NI-250416-049 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 13:38, sampling point ST060	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 13:38, sampling point ST060	Nitrate 1040 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 13:38, sampling point ST060	Nitrite 1041 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Collected Apr 7, 2025 13:52 Sampling point TF080 Sample type Routine Lab sample IN-250408-032 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:52, sampling point TF080	Arsenic 1005 EPA method 200.8	Not recorded
0.0084 mg/l , sample collected Apr 7, 2025 13:52, sampling point TF080	Barium 1010 EPA method 200.8	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:52, sampling point TF080	Cadmium 1015 EPA method 200.8	Not recorded
0.0009 mg/l , sample collected Apr 7, 2025 13:52, sampling point TF080	Chromium 1020 EPA method 200.8	Not recorded
0.122 mg/l , sample collected Apr 7, 2025 13:52, sampling point TF080	Fluoride 1025 EPA method QC 10-109-12-2-A	Not recorded
0.0006 mg/l , sample collected Apr 7, 2025 13:52, sampling point TF080	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:52, sampling point TF080	Selenium 1045 EPA method 200.8	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:52, sampling point TF080	Antimony, Total 1074 EPA method 200.8	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:52, sampling point TF080	Beryllium, Total 1075 EPA method 200.8	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:52, sampling point TF080	Thallium, Total 1085 EPA method 200.8	Not recorded
Collected Apr 7, 2025 13:38 Sampling point ST060 Tank S060 Sample type Routine Lab sample IN-250408-031 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:38, sampling point ST060	Arsenic 1005 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
0.0087 mg/l , sample collected Apr 7, 2025 13:38, sampling point ST060	Barium 1010 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:38, sampling point ST060	Cadmium 1015 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
0.001 mg/l , sample collected Apr 7, 2025 13:38, sampling point ST060	Chromium 1020 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
0.129 mg/l , sample collected Apr 7, 2025 13:38, sampling point ST060	Fluoride 1025 EPA method QC 10-109-12-2-A	Jan 1, 2023 – Dec 31, 2025
0.0007 mg/l , sample collected Apr 7, 2025 13:38, sampling point ST060	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:38, sampling point ST060	Selenium 1045 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:38, sampling point ST060	Antimony, Total 1074 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:38, sampling point ST060	Beryllium, Total 1075 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 7, 2025 13:38, sampling point ST060	Thallium, Total 1085 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025

Collected
Feb 26, 2026 09:40

Sampling point
SM2 Location withheld

Sample type
Routine

Lab sample
810-182199-2

Laboratory
Eurofins Eaton Analytical South Bend in

Monitoring period
Jan 1, 2026 – Dec 31, 2026
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  Not detected below 2 ug/l Minimum Reporting Level
Collected
Feb 26, 2026 09:40

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
810-182199-1

Laboratory
Eurofins Eaton Analytical South Bend in

Monitoring period
Jan 1, 2026 – Dec 31, 2026
- Chloroform 2941 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- TTHM 2950 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Nov 19, 2025 13:30

Sampling point
TF080

Sample type
Routine

Lab sample
CN-251120-004

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2025
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Nov 19, 2025 13:10

Sampling point
ST060 Tank S060

Sample type
Routine

Lab sample
CN-251120-003

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2025
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Sep 16, 2025 15:17

Sampling point
ST060 Tank S060

Sample type
Routine

Lab sample
IN-250917-002

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2025
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Sep 16, 2025 15:02

Sampling point
TF080

Sample type
Routine

Lab sample
IN-250917-001

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Apr 15, 2025 13:46

Sampling point
TF080

Sample type
Routine

Lab sample
NI-250416-050

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Apr 15, 2025 13:38

Sampling point
ST060 Tank S060

Sample type
Routine

Lab sample
NI-250416-049

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Apr 7, 2025 13:52

Sampling point
TF080

Sample type
Routine

Lab sample
IN-250408-032

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
- Barium 1010 EPA method 200.8
  
  Result
  0.0084 mg/l
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
- Chromium 1020 EPA method 200.8
  
  Result
  0.0009 mg/l
- Fluoride 1025 EPA method QC 10-109-12-2-A
  
  Result
  0.122 mg/l
- Nickel 1036 EPA method 200.8
  
  Result
  0.0006 mg/l
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.0025 mg/l Minimum Reporting Level
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Apr 7, 2025 13:38

Sampling point
ST060 Tank S060

Sample type
Routine

Lab sample
IN-250408-031

Laboratory
MSDH Lab
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Barium 1010 EPA method 200.8
  
  Result
  0.0087 mg/l
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Chromium 1020 EPA method 200.8
  
  Result
  0.001 mg/l
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Fluoride 1025 EPA method QC 10-109-12-2-A
  
  Result
  0.129 mg/l
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Nickel 1036 EPA method 200.8
  
  Result
  0.0007 mg/l
  
  Monitoring period
  Not recorded
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.0025 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025

Routine (10).