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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

MS0160011 , North Covington W/A-South

18 of the 58 analytes this system has been tested for have been detected at least once, across 290 samples on record.

The other 40 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 290 samples on record, detections range from July 13, 1993 to September 25, 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 North Covington W/A-South, 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 92 of 141 results Jul 13, 1993 Sep 25, 2025
Lead 1030 Inorganic Chemical 84 of 141 results Jul 13, 1993 Sep 25, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 33 of 34 results May 3, 2004 Feb 5, 2025
Nitrate 1040 Inorganic Chemical 33 of 34 results May 3, 2004 Feb 5, 2025
Barium 1010 Inorganic Chemical 17 of 17 results Apr 16, 2002 Feb 5, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 16, 2019 Oct 16, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 22 results Jul 9, 2007 Sep 1, 2021
Nickel 1036 Inorganic Chemical 4 of 17 results Jan 25, 2006 Apr 16, 2014
Xylenes, Total 2955 Organic Chemical 3 of 26 results Oct 14, 2004 Jun 12, 2019
TTHM 2950 Organic Chemical 2 of 22 results Jul 9, 2007 Sep 23, 2008
Dichloroacetic Acid 2451 Organic Chemical 1 of 15 results Jul 29, 2020 Jul 29, 2020
Monochloroacetic Acid 2450 Organic Chemical 1 of 15 results Jul 25, 2018 Jul 25, 2018
Gross Alpha, Incl. Radon & U 4002 Radionuclide 1 of 6 results May 27, 2014 May 27, 2014
Cadmium 1015 Inorganic Chemical 1 of 17 results Jan 25, 2006 Jan 25, 2006
Chromium 1020 Inorganic Chemical 1 of 17 results Jan 25, 2006 Jan 25, 2006
Selenium 1045 Inorganic Chemical 1 of 17 results Jan 25, 2006 Jan 25, 2006
Fluoride 1025 Inorganic Chemical 1 of 17 results Apr 16, 2002 Apr 16, 2002
Sulfate 1055 Inorganic Chemical 1 of 3 results Apr 16, 2002 Apr 16, 2002

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 111–120 of 290 samples, newest first — collected January 28, 2015 to September 21, 2016. The summary above covers all 290.

43 results from the 10 samples listed here: 18 detected, 25 not detected. Across the whole record it is 287 of 1,363. 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 North Covington W/A-South, every result from 111 to 120 of 290 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 21, 2016 08:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160922-119PB
Laboratory
MSDH Lab
0.4939 mg/l , sample collected Sep 21, 2016 08:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0006 mg/l , sample collected Sep 21, 2016 08:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 21, 2016 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160922-118PB
Laboratory
MSDH Lab
0.5633 mg/l , sample collected Sep 21, 2016 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0042 mg/l , sample collected Sep 21, 2016 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 21, 2016 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160922-117PB
Laboratory
MSDH Lab
0.0779 mg/l , sample collected Sep 21, 2016 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0007 mg/l , sample collected Sep 21, 2016 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 21, 2016 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160922-116PB
Laboratory
MSDH Lab
1.1106 mg/l , sample collected Sep 21, 2016 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0019 mg/l , sample collected Sep 21, 2016 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 21, 2016 05:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160922-115PB
Laboratory
MSDH Lab
0.8357 mg/l , sample collected Sep 21, 2016 05:35, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0009 mg/l , sample collected Sep 21, 2016 05:35, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Mar 21, 2016 14:10
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
160322-024NI
Laboratory
MSDH Lab
0.81 mg/l , sample collected Mar 21, 2016 14:10, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
0.81 mg/l , sample collected Mar 21, 2016 14:10, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 21, 2016 14:10, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Mar 21, 2016 14:00
Sampling point
TF081 Treatment Plant TF081
Sample type
Routine
Lab sample
160322-023NI
Laboratory
MSDH Lab
0.8 mg/l , sample collected Mar 21, 2016 14:00, sampling point TF081 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
0.8 mg/l , sample collected Mar 21, 2016 14:00, sampling point TF081 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 21, 2016 14:00, sampling point TF081 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Jun 23, 2015 04:10
Sampling point
TF081 Treatment Plant TF081
Sample type
Routine
Lab sample
150624-002VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Dichloromethane 2964 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Benzene 2990 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Toluene 2991 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2015 04:10, sampling point TF081 Styrene 2996 EPA method 524.2 Jan 1, 2015 – Dec 31, 2015
Collected
Jan 28, 2015 14:40
Sampling point
TF081 Treatment Plant TF081
Sample type
Routine
Lab sample
150129-012NI
Laboratory
MSDH Lab
0.62 mg/l , sample collected Jan 28, 2015 14:40, sampling point TF081 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
0.62 mg/l , sample collected Jan 28, 2015 14:40, sampling point TF081 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 28, 2015 14:40, sampling point TF081 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Jan 28, 2015 14:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
150129-011NI
Laboratory
MSDH Lab
0.61 mg/l , sample collected Jan 28, 2015 14:30, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
0.61 mg/l , sample collected Jan 28, 2015 14:30, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 28, 2015 14:30, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015

Routine (10).