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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 61–70 of 320 samples, newest first — collected June 24, 2020 to February 23, 2021. The summary above covers all 320.

21 results from the 10 samples listed here: 18 detected, 3 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.

Chemical and radiological sample results for Bernard Bayou Industrial District, every result from 61 to 70 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
Feb 23, 2021 12:12
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-210224-001
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 23, 2021 12:12, sampling point TF101 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 23, 2021 12:12, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 23, 2021 12:12, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jun 25, 2020 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-012PB
Laboratory
MSDH Lab
0.0486 mg/l , sample collected Jun 25, 2020 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0018 mg/l , sample collected Jun 25, 2020 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 25, 2020 06:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-011PB
Laboratory
MSDH Lab
0.1067 mg/l , sample collected Jun 25, 2020 06:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0018 mg/l , sample collected Jun 25, 2020 06:50, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 25, 2020 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-037PB
Laboratory
MSDH Lab
0.0227 mg/l , sample collected Jun 25, 2020 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0032 mg/l , sample collected Jun 25, 2020 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 25, 2020 07:25
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-036PB
Laboratory
MSDH Lab
0.1177 mg/l , sample collected Jun 25, 2020 07:25, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0033 mg/l , sample collected Jun 25, 2020 07:25, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 25, 2020 07:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-035PB
Laboratory
MSDH Lab
0.012 mg/l , sample collected Jun 25, 2020 07:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0016 mg/l , sample collected Jun 25, 2020 07:50, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 25, 2020 05:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-034PB
Laboratory
MSDH Lab
0.1546 mg/l , sample collected Jun 25, 2020 05:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0016 mg/l , sample collected Jun 25, 2020 05:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 24, 2020 07:14
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-013PB
Laboratory
MSDH Lab
0.1557 mg/l , sample collected Jun 24, 2020 07:14, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0012 mg/l , sample collected Jun 24, 2020 07:14, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 24, 2020 06:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-016PB
Laboratory
MSDH Lab
0.0551 mg/l , sample collected Jun 24, 2020 06:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0007 mg/l , sample collected Jun 24, 2020 06:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 24, 2020 07:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200626-015PB
Laboratory
MSDH Lab
0.0965 mg/l , sample collected Jun 24, 2020 07:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0005 mg/l , sample collected Jun 24, 2020 07:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020

Routine (10).