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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

MS0150010 , Northeast Copiah Water Assn

30 of the 58 analytes this system has been tested for have been detected at least once, across 506 samples on record.

The other 28 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 506 samples on record, detections range from July 20, 1993 to August 5, 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 Northeast Copiah Water Assn, 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 226 of 228 results Jul 20, 1993 Aug 5, 2025
Lead 1030 Inorganic Chemical 198 of 228 results Jul 20, 1993 Aug 5, 2025
Barium 1010 Inorganic Chemical 34 of 34 results Apr 9, 2002 Apr 14, 2025
Fluoride 1025 Inorganic Chemical 27 of 34 results Apr 9, 2002 Apr 14, 2025
TTHM 2950 Organic Chemical 21 of 40 results Sep 22, 2004 Aug 26, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 20 of 35 results Sep 22, 2004 Dec 20, 2021
Nickel 1036 Inorganic Chemical 17 of 34 results Apr 9, 2002 Apr 14, 2025
Chromium 1020 Inorganic Chemical 12 of 34 results Jan 28, 2004 Apr 14, 2025
Chloroform 2941 Organic Chemical 11 of 29 results May 18, 2006 Aug 26, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 8, 2012 Oct 8, 2012
Carbon Tetrachloride 2982 Organic Chemical 9 of 59 results Apr 14, 2004 Apr 14, 2010
Selenium 1045 Inorganic Chemical 8 of 34 results Jan 28, 2004 Apr 23, 2008
Arsenic 1005 Inorganic Chemical 6 of 34 results Jan 23, 2006 Jan 10, 2024
Cadmium 1015 Inorganic Chemical 6 of 34 results Jan 28, 2004 Jan 23, 2006
Bromodichloromethane 2943 Organic Chemical 5 of 29 results May 18, 2006 Dec 7, 2009
Dibromochloromethane 2944 Organic Chemical 5 of 29 results May 18, 2006 Dec 7, 2009
Sulfate 1055 Inorganic Chemical 5 of 8 results Apr 9, 2002 Jan 28, 2004
Sodium 1052 Inorganic Chemical 4 of 4 results Oct 30, 2019 Oct 20, 2024
Gross Alpha Particle Activity 4109 Radionuclide 4 of 4 results Jun 18, 2012 Jan 17, 2013
Monochloroacetic Acid 2450 Organic Chemical 3 of 20 results Dec 7, 2009 Jul 25, 2017
Combined Uranium 4006 Radionuclide 3 of 13 results Mar 8, 2012 Jul 30, 2012
Monobromoacetic Acid 2453 Organic Chemical 3 of 20 results Jun 25, 2008 Sep 8, 2009
Xylenes, Total 2955 Organic Chemical 2 of 59 results Aug 16, 2012 Dec 13, 2012
Ethylbenzene 2992 Organic Chemical 2 of 59 results Aug 16, 2012 Dec 13, 2012
Trichloroacetic Acid 2452 Organic Chemical 2 of 20 results Jun 25, 2008 Dec 7, 2009
Toluene 2991 Organic Chemical 1 of 59 results Dec 13, 2012 Dec 13, 2012
Styrene 2996 Organic Chemical 1 of 59 results Dec 13, 2012 Dec 13, 2012
Dichloroacetic Acid 2451 Organic Chemical 1 of 20 results Dec 7, 2009 Dec 7, 2009
Uranium-238 4009 Radionuclide 1 of 4 results Jan 23, 2006 Jan 23, 2006
Cyanide 1024 Inorganic Chemical 1 of 30 results Sep 8, 2003 Sep 8, 2003

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 506 samples, newest first — collected May 16, 2012 to August 16, 2012. The summary above covers all 506.

65 results from the 10 samples listed here: 8 detected, 57 not detected. Across the whole record it is 648 of 2,640. 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 Northeast Copiah Water Assn, every result from 171 to 180 of 506 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
Aug 16, 2012 04:29
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
120817-006VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
6.41 ug/l , sample collected Aug 16, 2012 04:29, sampling point TF105 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Dichloromethane 2964 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Benzene 2990 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Toluene 2991 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
0.698 ug/l , sample collected Aug 16, 2012 04:29, sampling point TF105 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2012 04:29, sampling point TF105 Styrene 2996 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 13:54
Sampling point
TF080
Sample type
Routine
Lab sample
120801-031
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Jul 30, 2012 13:54, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.256 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:54, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.256 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:54, sampling point TF080 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.24 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 13:54, sampling point TF080 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 15:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120801-032
Laboratory
Radiation Safety Engineering
3.9 pci/l , sample collected Jul 30, 2012 15:40, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.327 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 15:40, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.327 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 15:40, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.28 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 15:40, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 15:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120801-032RU
Laboratory
MSDH Lab
0.0006 mg/l , sample collected Jul 30, 2012 15:40, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 13:54
Sampling point
TF080
Sample type
Routine
Lab sample
120801-031RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2012 13:54, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 12, 2012 04:40
Sampling point
TF080
Sample type
Routine
Lab sample
120713-018VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Benzene 2990 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Toluene 2991 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2012 04:40, sampling point TF080 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Dec 31, 2016
Collected
Jun 18, 2012 07:37
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
120619-001
Laboratory
Radiation Safety Engineering
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Jun 18, 2012 07:37, sampling point TF105 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.172 pci/l Minimum Reporting Level , sample collected Jun 18, 2012 07:37, sampling point TF105 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Jun 18, 2012 07:37, sampling point TF105 Radium-228 4030 EPA method 904 Apr 1, 2012 – Jun 30, 2012
0.6 pci/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 Jun 18, 2012 07:37, sampling point TF105 Gross Alpha Particle Activity 4109 EPA method 00-02 Apr 1, 2012 – Jun 30, 2012
Collected
Jun 18, 2012 07:37
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
120619-001RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 18, 2012 07:37, sampling point TF105 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
May 16, 2012 09:06
Sampling point
TF080
Sample type
Routine
Lab sample
120517-028
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected May 16, 2012 09:06, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.256 pci/l Minimum Reporting Level , sample collected May 16, 2012 09:06, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.256 pci/l Minimum Reporting Level , sample collected May 16, 2012 09:06, sampling point TF080 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.24 pci/l Minimum Reporting Level , sample collected May 16, 2012 09:06, sampling point TF080 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 16, 2012 09:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120517-029
Laboratory
Radiation Safety Engineering
3.9 pci/l , sample collected May 16, 2012 09:50, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.327 pci/l Minimum Reporting Level , sample collected May 16, 2012 09:50, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.327 pci/l Minimum Reporting Level , sample collected May 16, 2012 09:50, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.28 pci/l Minimum Reporting Level , sample collected May 16, 2012 09:50, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012

Routine (10).