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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

MS0160009 , Southwest Covington W/A

25 of the 58 analytes this system has been tested for have been detected at least once, across 435 samples on record.

The other 33 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 435 samples on record, detections range from September 28, 1993 to October 28, 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 Southwest Covington W/A, 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 195 of 214 results Sep 28, 1993 Jul 16, 2024
Lead 1030 Inorganic Chemical 166 of 214 results Sep 28, 1993 Jul 16, 2024
Barium 1010 Inorganic Chemical 33 of 33 results Apr 23, 2002 Feb 5, 2025
Fluoride 1025 Inorganic Chemical 31 of 33 results Apr 23, 2002 Feb 5, 2025
Chromium 1020 Inorganic Chemical 22 of 33 results Apr 23, 2002 Feb 5, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 15 of 15 results Mar 6, 2012 Oct 2, 2012
Nickel 1036 Inorganic Chemical 11 of 33 results Feb 28, 2005 May 1, 2017
Sulfate 1055 Inorganic Chemical 9 of 9 results Apr 23, 2002 Jan 26, 2004
TTHM 2950 Organic Chemical 8 of 12 results May 19, 2004 Oct 28, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 14 results Jul 10, 2007 Dec 7, 2022
Chloroform 2941 Organic Chemical 6 of 7 results Jul 10, 2007 Oct 28, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 24, 2019 Oct 14, 2024
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 19 results Mar 6, 2012 Oct 2, 2012
Radium-228 4030 Radionuclide 5 of 19 results Mar 6, 2012 Oct 2, 2012
Selenium 1045 Inorganic Chemical 4 of 33 results Feb 28, 2005 Jan 23, 2006
Bromodichloromethane 2943 Organic Chemical 3 of 7 results Jul 10, 2007 Aug 30, 2011
Dibromochloromethane 2944 Organic Chemical 3 of 7 results Jul 10, 2007 Aug 30, 2011
Cadmium 1015 Inorganic Chemical 3 of 33 results Jan 23, 2006 Jan 23, 2006
Monobromoacetic Acid 2453 Organic Chemical 2 of 7 results Jul 25, 2018 Jul 30, 2020
Dichloroacetic Acid 2451 Organic Chemical 2 of 7 results Sep 17, 2008 Aug 30, 2011
Monochloroacetic Acid 2450 Organic Chemical 1 of 7 results Jul 25, 2018 Jul 25, 2018
Cyanide 1024 Inorganic Chemical 1 of 28 results Jul 9, 2014 Jul 9, 2014
Trichloroacetic Acid 2452 Organic Chemical 1 of 7 results Aug 30, 2011 Aug 30, 2011
Thallium, Total 1085 Inorganic Chemical 1 of 33 results Jul 27, 2011 Jul 27, 2011
Mercury 1035 Inorganic Chemical 1 of 33 results Feb 28, 2005 Feb 28, 2005

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 41–50 of 435 samples, newest first — collected July 1, 2021 to December 7, 2022. The summary above covers all 435.

45 results from the 10 samples listed here: 7 detected, 38 not detected. Across the whole record it is 542 of 1,880. 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 1 sampling point 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 Southwest Covington W/A, every result from 41 to 50 of 435 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
Dec 7, 2022 12:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-221208-008
Laboratory
MSDH Lab
1.16 ug/l , sample collected Dec 7, 2022 12:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
May 9, 2022 12:38
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
IN-220510-052
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0046 mg/l , sample collected May 9, 2022 12:38, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.114 mg/l , sample collected May 9, 2022 12:38, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 12:38, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Apr 20, 2022 13:39
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
VO-220421-009
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 20, 2022 13:39, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Collected
Feb 23, 2022 12:21
Sampling point
TF104 TF104
Sample type
Routine
Lab sample
RU-220224-029
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 23, 2022 12:21, sampling point TF104 Combined Uranium 4006 EPA method 200.8 Jan 1, 2014 – Dec 31, 2022
Collected
Feb 16, 2022 14:49
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-220217-019
Laboratory
MSDH Lab
1.46 ug/l , sample collected Feb 16, 2022 14:49, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Jan 18, 2022 10:15
Sampling point
TF104 TF104
Sample type
Routine
Lab sample
NI-220119-013
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 10:15, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 10:15, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 10:15, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Jan 18, 2022 10:00
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-220119-012
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 10:00, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 10:00, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 10:00, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Sep 1, 2021 14:49
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-210902-012
Laboratory
MSDH Lab
12.3 ug/l , sample collected Sep 1, 2021 14:49, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2021 – Dec 31, 2021
Collected
Sep 1, 2021 14:49
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-210902-012
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 1, 2021 14:49, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Collected
Jul 1, 2021 08:00
Sampling point
LC0036 Location withheld
Sample type
Routine
Lab sample
PB-210702-024
Laboratory
MSDH Lab
0.088 mg/l , sample collected Jul 1, 2021 08:00, sampling point LC0036 Copper, Free 1022 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
0.5 ug/l , sample collected Jul 1, 2021 08:00, sampling point LC0036 Lead 1030 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021

Routine (10).