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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

MS0140002 , Clarksdale Public Utilities

30 of the 59 analytes this system has been tested for have been detected at least once, across 1,252 samples on record.

The other 29 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 1,252 samples on record, detections range from July 6, 1992 to July 9, 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 Clarksdale Public 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 440 of 479 results Jul 6, 1992 Sep 11, 2024
Lead 1030 Inorganic Chemical 367 of 479 results Jul 6, 1992 Sep 11, 2024
TTHM 2950 Organic Chemical 144 of 144 results Mar 18, 2004 Jul 9, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 134 of 141 results Sep 6, 2005 Jul 9, 2025
Barium 1010 Inorganic Chemical 98 of 99 results Apr 9, 2002 Feb 10, 2025
Fluoride 1025 Inorganic Chemical 96 of 99 results Apr 9, 2002 Feb 10, 2025
Chromium 1020 Inorganic Chemical 77 of 99 results Apr 9, 2002 Feb 10, 2025
Chloroform 2941 Organic Chemical 72 of 72 results Jul 25, 2006 Dec 15, 2020
Bromodichloromethane 2943 Organic Chemical 66 of 72 results Jul 25, 2006 Dec 15, 2020
Selenium 1045 Inorganic Chemical 62 of 99 results Apr 9, 2002 Feb 10, 2025
Dibromochloromethane 2944 Organic Chemical 62 of 72 results Jul 25, 2006 Dec 15, 2020
Trichloroacetic Acid 2452 Organic Chemical 60 of 67 results Aug 10, 2010 Dec 15, 2020
Dibromoacetic Acid 2454 Organic Chemical 60 of 67 results Jun 23, 2008 Dec 15, 2020
Dichloroacetic Acid 2451 Organic Chemical 56 of 67 results Jun 23, 2008 Jul 27, 2020
Bromoform 2942 Organic Chemical 54 of 72 results Nov 14, 2006 Dec 15, 2020
Arsenic 1005 Inorganic Chemical 49 of 99 results Apr 9, 2002 Feb 10, 2025
Nickel 1036 Inorganic Chemical 42 of 99 results Apr 9, 2002 Feb 10, 2025
Sodium 1052 Inorganic Chemical 15 of 15 results Oct 2, 2019 Feb 1, 2021
Cyanide 1024 Inorganic Chemical 12 of 84 results Sep 8, 2003 Jun 4, 2025
Radium-226 4020 Radionuclide 10 of 28 results Mar 26, 2018 May 29, 2019
Sulfate 1055 Inorganic Chemical 9 of 26 results Sep 8, 2003 Sep 8, 2003
Thallium, Total 1085 Inorganic Chemical 8 of 99 results Mar 9, 2005 Apr 7, 2020
Nitrite 1041 Inorganic Chemical 7 of 175 results May 19, 2008 Jan 10, 2022
Monobromoacetic Acid 2453 Organic Chemical 6 of 67 results Jun 4, 2014 Dec 17, 2019
Combined Radium (-226 & -228) 4010 Radionuclide 6 of 28 results Mar 26, 2018 May 29, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results May 29, 2019 May 29, 2019
Radium-228 4030 Radionuclide 4 of 28 results May 29, 2019 May 29, 2019
Cadmium 1015 Inorganic Chemical 4 of 99 results Mar 9, 2005 Jan 23, 2006
Monochloroacetic Acid 2450 Organic Chemical 3 of 67 results Nov 29, 2016 Dec 17, 2019
Nitrate 1040 Inorganic Chemical 1 of 175 results Jun 12, 2006 Jun 12, 2006

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 861–870 of 1,252 samples, newest first — collected February 28, 2005 to May 25, 2005. The summary above covers all 1,252.

60 results from the 10 samples listed here: 23 detected, 37 not detected. Across the whole record it is 2,029 of 5,159. 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 Clarksdale Public Utilities, every result from 861 to 870 of 1,252 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 25, 2005
Sampling point
TF108 Treatment Plant T108
Sample type
Routine
Lab sample
050526-015VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Dichloromethane 2964 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Benzene 2990 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Toluene 2991 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 25, 2005, sampling point TF108 Styrene 2996 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Collected
Apr 5, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
050406-009HA
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Apr 5, 2005, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2005 – Jun 30, 2005
Collected
Apr 5, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
050406-011TH
Laboratory
MSDH Lab
2.93 ug/l , sample collected Apr 5, 2005, sampling point MRT000 TTHM 2950 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Collected
Mar 9, 2005
Sampling point
TF112 Treatment Plant T112
Sample type
Routine
Lab sample
050310-008IN
Laboratory
MSDH Lab
0.00135 mg/l , sample collected Mar 9, 2005, sampling point TF112 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.013885 mg/l , sample collected Mar 9, 2005, sampling point TF112 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF112 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.005632 mg/l , sample collected Mar 9, 2005, sampling point TF112 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.421415 mg/l , sample collected Mar 9, 2005, sampling point TF112 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF112 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000502 mg/l , sample collected Mar 9, 2005, sampling point TF112 Nickel 1036 EPA method 200.8 Not recorded
0.003134 mg/l , sample collected Mar 9, 2005, sampling point TF112 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF112 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 Mar 9, 2005, sampling point TF112 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001137 mg/l , sample collected Mar 9, 2005, sampling point TF112 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Mar 9, 2005
Sampling point
TF109 Treatment Plant T109
Sample type
Routine
Lab sample
050310-010IN
Laboratory
MSDH Lab
0.001673 mg/l , sample collected Mar 9, 2005, sampling point TF109 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.007023 mg/l , sample collected Mar 9, 2005, sampling point TF109 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.00012 mg/l , sample collected Mar 9, 2005, sampling point TF109 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.004317 mg/l , sample collected Mar 9, 2005, sampling point TF109 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.389972 mg/l , sample collected Mar 9, 2005, sampling point TF109 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF109 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF109 Nickel 1036 EPA method 200.8 Not recorded
0.002055 mg/l , sample collected Mar 9, 2005, sampling point TF109 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF109 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 Mar 9, 2005, sampling point TF109 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001287 mg/l , sample collected Mar 9, 2005, sampling point TF109 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Mar 9, 2005
Sampling point
TF107 Treatment Plant T107
Sample type
Routine
Lab sample
050310-009IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF107 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.096701 mg/l , sample collected Mar 9, 2005, sampling point TF107 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000168 mg/l , sample collected Mar 9, 2005, sampling point TF107 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.008043 mg/l , sample collected Mar 9, 2005, sampling point TF107 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.22616 mg/l , sample collected Mar 9, 2005, sampling point TF107 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF107 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000825 mg/l , sample collected Mar 9, 2005, sampling point TF107 Nickel 1036 EPA method 200.8 Not recorded
0.001763 mg/l , sample collected Mar 9, 2005, sampling point TF107 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 9, 2005, sampling point TF107 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 Mar 9, 2005, sampling point TF107 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001631 mg/l , sample collected Mar 9, 2005, sampling point TF107 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Feb 28, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
050301-004HA
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Feb 28, 2005, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Mar 31, 2005
Collected
Feb 28, 2005
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
050301-004TH
Laboratory
MSDH Lab
1.59 ug/l , sample collected Feb 28, 2005, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Collected
Feb 28, 2005
Sampling point
TF111 Treatment Plant T111
Sample type
Routine
Lab sample
050301-022CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 28, 2005, sampling point TF111 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 28, 2005
Sampling point
TF109 Treatment Plant T109
Sample type
Routine
Lab sample
050301-025CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 28, 2005, sampling point TF109 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007

Routine (10).