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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 291–300 of 373 samples, newest first — collected September 10, 2003 to July 12, 2004. The summary above covers all 373.

94 results from the 10 samples listed here: 5 detected, 89 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 291 to 300 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
Jul 12, 2004
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
040713-030VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Benzene 2990 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Toluene 2991 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF080 Styrene 2996 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Collected
May 19, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040520-004TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2004, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2004 – Dec 31, 2004
Collected
May 19, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040520-004HA
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected May 19, 2004, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2004 – Dec 31, 2004
Collected
May 3, 2004
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
040504-099NI
Laboratory
MSDH Lab
0.37 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected May 3, 2004, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
0.37 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected May 3, 2004, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 3, 2004, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Collected
Apr 12, 2004
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
040413-034VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Benzene 2990 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Toluene 2991 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 12, 2004, sampling point TF080 Styrene 2996 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Collected
Jan 26, 2004
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
040127-090CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Jan 26, 2004
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
040127-071IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.012 mg/l , sample collected Jan 26, 2004, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Jan 26, 2004, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 26, 2004, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Collected
Jan 12, 2004
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
040113-047VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 1,2,4-Trichlorobenzene 2378 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Cis-1,2-Dichloroethylene 2380 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Xylenes, Total 2955 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Dichloromethane 2964 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 O-Dichlorobenzene 2968 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 P-Dichlorobenzene 2969 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Vinyl Chloride 2976 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 1,1-Dichloroethylene 2977 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Trans-1,2-Dichloroethylene 2979 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 1,2-Dichloroethane 2980 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 1,1,1-Trichloroethane 2981 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Carbon Tetrachloride 2982 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 1,2-Dichloropropane 2983 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Trichloroethylene 2984 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 1,1,2-Trichloroethane 2985 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Tetrachloroethylene 2987 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Chlorobenzene 2989 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Benzene 2990 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Toluene 2991 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Ethylbenzene 2992 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 12, 2004, sampling point TF080 Styrene 2996 Jan 1, 2004 – Mar 31, 2004
Collected
Sep 10, 2003
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
030911-075IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Arsenic 1005 EPA method 200.8 Not recorded
0.011 mg/l , sample collected Sep 10, 2003, sampling point TF080 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Cadmium 1015 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Chromium 1020 EPA method 200.8 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Selenium 1045 EPA method 200.8 Not recorded
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
Sep 10, 2003
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
030911-028CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Sep 10, 2003, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004

Routine (10).