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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

MS0160004 , North Covington W/A-North

18 of the 58 analytes this system has been tested for have been detected at least once, across 373 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 373 samples on record, detections range from July 12, 1993 to February 11, 2026. 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-North, 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 173 of 227 results Jul 12, 1993 Sep 24, 2025
Lead 1030 Inorganic Chemical 82 of 227 results Jul 12, 1993 Sep 24, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 38 of 38 results May 3, 2004 Feb 11, 2026
Nitrate 1040 Inorganic Chemical 38 of 38 results May 3, 2004 Feb 11, 2026
Barium 1010 Inorganic Chemical 17 of 17 results Apr 16, 2002 Feb 5, 2025
Nickel 1036 Inorganic Chemical 6 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 21 results Jul 9, 2007 Aug 6, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 13, 2011 Jul 13, 2012
Gross Alpha Particle Activity 4109 Radionuclide 4 of 4 results Jun 20, 2012 Jan 16, 2013
Chromium 1020 Inorganic Chemical 3 of 17 results Apr 16, 2002 Apr 16, 2014
TTHM 2950 Organic Chemical 2 of 22 results Jul 9, 2007 Sep 23, 2008
Selenium 1045 Inorganic Chemical 2 of 17 results Jan 26, 2004 Jan 25, 2006
Dichloroacetic Acid 2451 Organic Chemical 1 of 14 results Aug 6, 2024 Aug 6, 2024
Monochloroacetic Acid 2450 Organic Chemical 1 of 14 results Jul 25, 2018 Jul 25, 2018
Arsenic 1005 Inorganic Chemical 1 of 17 results May 11, 2011 May 11, 2011
Fluoride 1025 Inorganic Chemical 1 of 17 results Mar 24, 2008 Mar 24, 2008
Cadmium 1015 Inorganic Chemical 1 of 17 results Jan 25, 2006 Jan 25, 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 171–180 of 373 samples, newest first — collected September 11, 2017 to February 4, 2019. The summary above covers all 373.

55 results from the 10 samples listed here: 9 detected, 46 not detected. Across the whole record it is 386 of 1,423. 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-North, every result from 171 to 180 of 373 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 4, 2019 13:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
190205-038NI
Laboratory
MSDH Lab
0.59 mg/l , sample collected Feb 4, 2019 13:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
0.58 mg/l , sample collected Feb 4, 2019 13:00, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 4, 2019 13:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Oct 3, 2018 13:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
181004-019IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0126 mg/l , sample collected Oct 3, 2018 13:00, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 3, 2018 13:00, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 25, 2018 02:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180726-006HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Jul 25, 2018 02:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Jul 25, 2018 02:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 25, 2018 02:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180726-014TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Jul 25, 2018 02:00, sampling point MRT000 TTHM 2950 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 23, 2018 14:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180724-016RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 23, 2018 14:15, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
May 21, 2018 01:45
Sampling point
TF081 Treatment Facility TF081
Sample type
Routine
Lab sample
180522-006VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 21, 2018 01:45, sampling point TF081 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Dec 31, 2020
Collected
May 2, 2018 02:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180503-013CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 2, 2018 02:15, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Jan 31, 2018 12:50
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180201-013NI
Laboratory
MSDH Lab
0.5 mg/l , sample collected Jan 31, 2018 12:50, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
0.5 mg/l , sample collected Jan 31, 2018 12:50, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2018 12:50, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Jan 31, 2018 12:55
Sampling point
TF081 Treatment Facility TF081
Sample type
Routine
Lab sample
180201-012NI
Laboratory
MSDH Lab
0.5 mg/l , sample collected Jan 31, 2018 12:55, sampling point TF081 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
0.5 mg/l , sample collected Jan 31, 2018 12:55, sampling point TF081 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2018 12:55, sampling point TF081 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Sep 11, 2017 12:45
Sampling point
TF081 Treatment Facility TF081
Sample type
Routine
Lab sample
170912-011CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 11, 2017 12:45, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2015 – Dec 31, 2017

Routine (10).