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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 11–20 of 373 samples, newest first — collected September 25, 2024 to September 24, 2025. The summary above covers all 373.

28 results from the 10 samples listed here: 13 detected, 15 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.

We withheld the location of 4 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 North Covington W/A-North, every result from 11 to 20 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
Sep 24, 2025 06:00
Sampling point
LC0023 Location withheld
Sample type
Routine
Lab sample
PB-250930-013
Laboratory
MSDH Lab
0.214 mg/l , sample collected Sep 24, 2025 06:00, sampling point LC0023 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2025 06:00, sampling point LC0023 Lead 1030 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Sep 24, 2025 06:30
Sampling point
LC0022 Location withheld
Sample type
Routine
Lab sample
PB-250930-012
Laboratory
MSDH Lab
0.0152 mg/l , sample collected Sep 24, 2025 06:30, sampling point LC0022 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
0.5 ug/l , sample collected Sep 24, 2025 06:30, sampling point LC0022 Lead 1030 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Sep 24, 2025 07:00
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-250930-011
Laboratory
MSDH Lab
0.0031 mg/l , sample collected Sep 24, 2025 07:00, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2025 07:00, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Jun 18, 2025 15:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-250619-010
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 18, 2025 15:30, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Feb 5, 2025 15:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250206-038
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 15:15, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0134 mg/l , sample collected Feb 5, 2025 15:15, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 15:15, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 15:15, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 15:15, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 15:15, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0005 mg/l , sample collected Feb 5, 2025 15:15, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 15:15, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 15:15, sampling point TF080 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 Feb 5, 2025 15:15, sampling point TF080 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 Feb 5, 2025 15:15, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 5, 2025 15:00
Sampling point
TF081 Treatment Facility TF081
Sample type
Routine
Lab sample
NI-250206-043
Laboratory
MSDH Lab
0.661 mg/l , sample collected Feb 5, 2025 15:00, sampling point TF081 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
0.661 mg/l , sample collected Feb 5, 2025 15:00, sampling point TF081 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 15:00, sampling point TF081 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 5, 2025 15:10
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-250206-044
Laboratory
MSDH Lab
0.611 mg/l , sample collected Feb 5, 2025 15:10, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
0.611 mg/l , sample collected Feb 5, 2025 15:10, 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 Feb 5, 2025 15:10, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Oct 16, 2024 13:15
Sampling point
TF081 Treatment Facility TF081
Sample type
Routine
Lab sample
NA-241017-029
Laboratory
MSDH Lab
2.2 mg/l , sample collected Oct 16, 2024 13:15, sampling point TF081 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Oct 16, 2024 13:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-241017-028
Laboratory
MSDH Lab
2.18 mg/l , sample collected Oct 16, 2024 13:30, sampling point TF080 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Sep 25, 2024 06:00
Sampling point
LC0025 Location withheld
Sample type
Routine
Lab sample
PB-240926-010
Laboratory
MSDH Lab
0.0654 mg/l , sample collected Sep 25, 2024 06:00, sampling point LC0025 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 25, 2024 06:00, sampling point LC0025 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024

Routine (10).