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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 51–60 of 135 samples, newest first — collected April 25, 2018 to June 30, 2019. The summary above covers all 135.

27 results from the 10 samples listed here: 17 detected, 10 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.

Chemical and radiological sample results for Copiah W/A - Bayou Pierre #2, every result from 51 to 60 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
Jun 30, 2019 06:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190702-011PB
Laboratory
MSDH Lab
0.0236 mg/l , sample collected Jun 30, 2019 06:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0026 mg/l , sample collected Jun 30, 2019 06:20, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jun 30, 2019 06:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190702-010PB
Laboratory
MSDH Lab
0.0215 mg/l , sample collected Jun 30, 2019 06:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0011 mg/l , sample collected Jun 30, 2019 06:45, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jun 30, 2019 06:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190702-008PB
Laboratory
MSDH Lab
0.0184 mg/l , sample collected Jun 30, 2019 06:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0018 mg/l , sample collected Jun 30, 2019 06:10, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jun 30, 2019 06:48
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190702-007PB
Laboratory
MSDH Lab
0.0093 mg/l , sample collected Jun 30, 2019 06:48, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0022 mg/l , sample collected Jun 30, 2019 06:48, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jun 30, 2019 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190702-006PB
Laboratory
MSDH Lab
0.0705 mg/l , sample collected Jun 30, 2019 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0051 mg/l , sample collected Jun 30, 2019 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jun 30, 2019 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
190702-005PB
Laboratory
MSDH Lab
0.0093 mg/l , sample collected Jun 30, 2019 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0022 mg/l , sample collected Jun 30, 2019 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Oct 30, 2018 11:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
181031-003HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Dec 31, 2019
Collected
Oct 30, 2018 11:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
181031-003TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 30, 2018 11:00, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.09 ug/l , sample collected Oct 30, 2018 11:00, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.09 ug/l , sample collected Oct 30, 2018 11:00, sampling point MRT000 TTHM 2950 Jan 1, 2017 – Dec 31, 2019
Collected
Apr 25, 2018 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180426-049PB
Laboratory
MSDH Lab
0.0193 mg/l , sample collected Apr 25, 2018 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0017 mg/l , sample collected Apr 25, 2018 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Apr 25, 2018 08:01
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180426-048PB
Laboratory
MSDH Lab
0.402 mg/l , sample collected Apr 25, 2018 08:01, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 25, 2018 08:01, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded

Routine (10).