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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 81–90 of 506 samples, newest first — collected October 30, 2019 to February 8, 2021. The summary above covers all 506.

39 results from the 10 samples listed here: 5 detected, 34 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.

We withheld the location of 1 sampling point 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 Northeast Copiah Water Assn, every result from 81 to 90 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
Feb 8, 2021 12:17
Sampling point
TF080
Sample type
Routine
Lab sample
NI-210208-008
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 12:17, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 12:17, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 12:17, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Feb 8, 2021 13:00
Sampling point
TF080
Sample type
Routine
Lab sample
CN-210208-001
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 13:00, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2019 – Dec 31, 2021
Collected
Dec 28, 2020 10:12
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
201229-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Dec 28, 2020 10:12
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
201229-001TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Dec 28, 2020 10:12, sampling point SM2 TTHM 2950 Not recorded
Collected
Apr 14, 2020 18:20
Sampling point
TF080
Sample type
Routine
Lab sample
200417-002IN
Laboratory
MSDH Lab
0.0006 mg/l , sample collected Apr 14, 2020 18:20, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
0.0191 mg/l , sample collected Apr 14, 2020 18:20, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 18:20, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 18:20, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
0.117 mg/l , sample collected Apr 14, 2020 18:20, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 18:20, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 18:20, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 18:20, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 18:20, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 18:20, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 14, 2020 18:20, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Collected
Jan 21, 2020 10:15
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
200122-039NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 21, 2020 10:15, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 21, 2020 10:15, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 21, 2020 10:15, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Jan 21, 2020 10:40
Sampling point
TF080
Sample type
Routine
Lab sample
200122-038NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 21, 2020 10:40, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 21, 2020 10:40, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 21, 2020 10:40, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Dec 19, 2019 10:47
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
191220-004TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2019 10:47, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2019 10:47, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2019 10:47, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 19, 2019 10:47, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Dec 19, 2019 10:47, sampling point MRT000 TTHM 2950 Jan 1, 2019 – Dec 31, 2019
Collected
Oct 30, 2019 14:57
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
680-176301-1
Laboratory
Test America-Savannah
32000 ug/l , sample collected Oct 30, 2019 14:57, sampling point TF105 Sodium 1052 EPA method 200.7 Not recorded
Collected
Oct 30, 2019 14:37
Sampling point
TF080
Sample type
Routine
Lab sample
680-176301-2
Laboratory
Test America-Savannah
17000 ug/l , sample collected Oct 30, 2019 14:37, sampling point TF080 Sodium 1052 EPA method 200.7 Not recorded

Routine (10).