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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

MS0150020 , Copiah W/A - Bayou Pierre #2

11 of the 13 analytes this system has been tested for have been detected at least once, across 135 samples on record.

The other 2 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 135 samples on record, detections range from May 4, 1994 to September 30, 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 Copiah W/A - Bayou Pierre #2, 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 83 of 113 results Dec 28, 2000 Sep 30, 2025
Lead 1030 Inorganic Chemical 48 of 113 results May 4, 1994 Apr 6, 2022
TTHM 2950 Organic Chemical 9 of 11 results May 19, 2004 Oct 30, 2018
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 11 results Jun 27, 2007 Feb 5, 2025
Dibromochloromethane 2944 Organic Chemical 5 of 8 results Dec 28, 2009 Oct 30, 2018
Dichloroacetic Acid 2451 Organic Chemical 3 of 7 results Jul 10, 2012 Aug 27, 2014
Trichloroacetic Acid 2452 Organic Chemical 3 of 7 results Aug 14, 2008 Aug 27, 2014
Bromodichloromethane 2943 Organic Chemical 3 of 8 results Dec 28, 2009 Aug 27, 2014
Chloroform 2941 Organic Chemical 2 of 8 results Jun 25, 2013 Aug 27, 2014
Monochloroacetic Acid 2450 Organic Chemical 2 of 7 results Dec 28, 2009 Jul 10, 2012
Dibromoacetic Acid 2454 Organic Chemical 1 of 7 results Jun 25, 2013 Jun 25, 2013

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 31–40 of 135 samples, newest first — collected December 11, 2019 to October 29, 2021. The summary above covers all 135.

20 results from the 10 samples listed here: 17 detected, 3 not detected. Across the whole record it is 167 of 315. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Units in this table

Lead is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

We withheld the location of 7 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 Copiah W/A - Bayou Pierre #2, every result from 31 to 40 of 135 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
Oct 29, 2021 07:30
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-211029-057
Laboratory
MSDH Lab
0.0112 mg/l , sample collected Oct 29, 2021 07:30, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jul 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2021 07:30, sampling point LC0009 Lead 1030 EPA method 200.8 Jul 1, 2021 – Dec 31, 2021
Collected
Oct 29, 2021 08:00
Sampling point
LC0012 Location withheld
Sample type
Routine
Lab sample
PB-211029-062
Laboratory
MSDH Lab
0.0113 mg/l , sample collected Oct 29, 2021 08:00, sampling point LC0012 Copper, Free 1022 EPA method 200.8 Jul 1, 2021 – Dec 31, 2021
0.8 ug/l , sample collected Oct 29, 2021 08:00, sampling point LC0012 Lead 1030 EPA method 200.8 Jul 1, 2021 – Dec 31, 2021
Collected
Oct 29, 2021 06:00
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-211029-056
Laboratory
MSDH Lab
0.249 mg/l , sample collected Oct 29, 2021 06:00, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jul 1, 2021 – Dec 31, 2021
0.9 ug/l , sample collected Oct 29, 2021 06:00, sampling point LC0014 Lead 1030 EPA method 200.8 Jul 1, 2021 – Dec 31, 2021
Collected
Oct 29, 2021 05:45
Sampling point
LC0013 Location withheld
Sample type
Routine
Lab sample
PB-211029-061
Laboratory
MSDH Lab
0.0307 mg/l , sample collected Oct 29, 2021 05:45, sampling point LC0013 Copper, Free 1022 EPA method 200.8 Jul 1, 2021 – Dec 31, 2021
0.8 ug/l , sample collected Oct 29, 2021 05:45, sampling point LC0013 Lead 1030 EPA method 200.8 Jul 1, 2021 – Dec 31, 2021
Collected
Jun 29, 2021 10:00
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-210630-036
Laboratory
MSDH Lab
0.282 mg/l , sample collected Jun 29, 2021 10:00, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
1 ug/l , sample collected Jun 29, 2021 10:00, sampling point LC0014 Lead 1030 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Collected
Jun 29, 2021 09:30
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-210630-035
Laboratory
MSDH Lab
0.0403 mg/l , sample collected Jun 29, 2021 09:30, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
13.9 ug/l , sample collected Jun 29, 2021 09:30, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Collected
Jun 29, 2021 09:15
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-210630-033
Laboratory
MSDH Lab
0.097 mg/l , sample collected Jun 29, 2021 09:15, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
4.3 ug/l , sample collected Jun 29, 2021 09:15, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Collected
Jun 29, 2021 09:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-210630-034
Laboratory
MSDH Lab
0.0054 mg/l , sample collected Jun 29, 2021 09:00, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2021 09:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Collected
Dec 11, 2019 09:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
191212-005PB
Laboratory
MSDH Lab
0.0014 mg/l , sample collected Dec 11, 2019 09:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 11, 2019 09:20, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Dec 11, 2019 10:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
191212-010PB
Laboratory
MSDH Lab
0.2814 mg/l , sample collected Dec 11, 2019 10:40, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0018 mg/l , sample collected Dec 11, 2019 10:40, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded

Routine (10).