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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

MS0240046 , Bernard Bayou Industrial District

20 of the 54 analytes this system has been tested for have been detected at least once, across 320 samples on record.

The other 34 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 320 samples on record, detections range from December 1, 1993 to February 7, 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 Bernard Bayou Industrial District, 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 100 of 130 results Dec 1, 1993 Jul 17, 2023
Lead 1030 Inorganic Chemical 96 of 130 results Dec 1, 1993 Jul 17, 2023
Barium 1010 Inorganic Chemical 31 of 31 results Sep 15, 2003 Feb 11, 2025
Fluoride 1025 Inorganic Chemical 31 of 31 results Sep 15, 2003 Feb 11, 2025
TTHM 2950 Organic Chemical 17 of 19 results Jul 30, 2007 Feb 7, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 15 of 20 results Jul 30, 2007 Feb 7, 2026
Chromium 1020 Inorganic Chemical 13 of 31 results Sep 15, 2003 Oct 22, 2018
Chloroform 2941 Organic Chemical 12 of 14 results Jul 30, 2007 Feb 7, 2026
Bromodichloromethane 2943 Organic Chemical 11 of 14 results Jul 30, 2007 Feb 7, 2026
Dibromochloromethane 2944 Organic Chemical 11 of 14 results Jul 30, 2007 Feb 7, 2026
Dichloroacetic Acid 2451 Organic Chemical 10 of 14 results Jul 18, 2012 Feb 7, 2026
Nickel 1036 Inorganic Chemical 9 of 31 results Sep 15, 2003 Feb 11, 2025
Trichloroacetic Acid 2452 Organic Chemical 7 of 14 results Jul 18, 2012 Feb 7, 2026
Sulfate 1055 Inorganic Chemical 5 of 5 results Sep 15, 2003 Feb 2, 2004
Cadmium 1015 Inorganic Chemical 4 of 31 results Sep 15, 2003 Mar 7, 2005
Sodium 1052 Inorganic Chemical 3 of 3 results Feb 23, 2021 Feb 23, 2021
Selenium 1045 Inorganic Chemical 3 of 31 results Mar 7, 2005 Mar 7, 2005
Nitrate 1040 Inorganic Chemical 2 of 66 results Aug 17, 2006 Aug 17, 2006
Monochloroacetic Acid 2450 Organic Chemical 1 of 14 results Aug 1, 2018 Aug 1, 2018
Nitrite 1041 Inorganic Chemical 1 of 66 results Aug 17, 2006 Aug 17, 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 31–40 of 320 samples, newest first — collected February 6, 2023 to July 17, 2023. The summary above covers all 320.

20 results from the 10 samples listed here: 13 detected, 7 not detected. Across the whole record it is 382 of 1,514. 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 6 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 Bernard Bayou Industrial District, every result from 31 to 40 of 320 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 17, 2023 08:05
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-230718-029
Laboratory
MSDH Lab
0.124 mg/l , sample collected Jul 17, 2023 08:05, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.8 ug/l , sample collected Jul 17, 2023 08:05, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 08:10
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230718-020
Laboratory
MSDH Lab
0.0476 mg/l , sample collected Jul 17, 2023 08:10, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 17, 2023 08:10, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 08:00
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230718-021
Laboratory
MSDH Lab
0.0287 mg/l , sample collected Jul 17, 2023 08:00, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
2.2 ug/l , sample collected Jul 17, 2023 08:00, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 08:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230718-023
Laboratory
MSDH Lab
0.263 mg/l , sample collected Jul 17, 2023 08:00, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Jul 17, 2023 08:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 08:00
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230718-024
Laboratory
MSDH Lab
0.177 mg/l , sample collected Jul 17, 2023 08:00, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.8 ug/l , sample collected Jul 17, 2023 08:00, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 08:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230718-025
Laboratory
MSDH Lab
0.105 mg/l , sample collected Jul 17, 2023 08:00, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Jul 17, 2023 08:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
May 24, 2023 11:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230525-022
Laboratory
MSDH Lab
3.95 ug/l , sample collected May 24, 2023 11:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2023
Collected
May 24, 2023 11:18
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230525-022
Laboratory
MSDH Lab
9.98 ug/l , sample collected May 24, 2023 11:18, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Feb 6, 2023 10:10
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-230207-013
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 6, 2023 10:10, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 6, 2023 10:10, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 6, 2023 10:10, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Feb 6, 2023 10:40
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-230207-012
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 6, 2023 10:40, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 6, 2023 10:40, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 6, 2023 10:40, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023

Routine (10).