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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

MS0140012 , Moore Bayou Water Association

25 of the 57 analytes this system has been tested for have been detected at least once, across 463 samples on record.

The other 32 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 463 samples on record, detections range from November 23, 1993 to July 29, 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 Moore Bayou Water Association, 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 157 of 162 results Nov 23, 1993 Jun 20, 2023
Lead 1030 Inorganic Chemical 138 of 162 results Nov 23, 1993 Jun 20, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 94 of 116 results Sep 13, 2004 Jul 29, 2025
TTHM 2950 Organic Chemical 82 of 117 results Sep 13, 2004 Jul 29, 2025
Bromoform 2942 Organic Chemical 51 of 76 results May 15, 2006 Nov 26, 2018
Bromodichloromethane 2943 Organic Chemical 50 of 76 results May 15, 2006 Nov 26, 2018
Dibromochloromethane 2944 Organic Chemical 50 of 76 results May 15, 2006 Nov 26, 2018
Dibromoacetic Acid 2454 Organic Chemical 47 of 69 results Dec 14, 2005 Nov 26, 2018
Chloroform 2941 Organic Chemical 43 of 76 results May 15, 2006 Nov 26, 2018
Dichloroacetic Acid 2451 Organic Chemical 33 of 69 results Dec 14, 2005 Nov 26, 2018
Trichloroacetic Acid 2452 Organic Chemical 21 of 69 results Jan 29, 2008 Nov 26, 2018
Monobromoacetic Acid 2453 Organic Chemical 17 of 69 results Jan 29, 2008 Aug 28, 2017
Barium 1010 Inorganic Chemical 11 of 11 results May 14, 2002 Feb 3, 2025
Fluoride 1025 Inorganic Chemical 11 of 11 results May 14, 2002 Feb 3, 2025
Selenium 1045 Inorganic Chemical 11 of 11 results May 14, 2002 Feb 3, 2025
Arsenic 1005 Inorganic Chemical 9 of 11 results Jan 26, 2004 Feb 3, 2025
Chromium 1020 Inorganic Chemical 9 of 11 results May 14, 2002 Feb 3, 2025
Monochloroacetic Acid 2450 Organic Chemical 6 of 69 results Dec 14, 2005 Dec 1, 2016
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 24, 2019 Oct 21, 2024
Nickel 1036 Inorganic Chemical 3 of 11 results Mar 1, 2005 Apr 21, 2014
Nitrite 1041 Inorganic Chemical 2 of 22 results Jun 12, 2006 Jan 29, 2014
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 22 results Jun 12, 2006 Jun 12, 2006
Nitrate 1040 Inorganic Chemical 1 of 22 results Jun 12, 2006 Jun 12, 2006
Cadmium 1015 Inorganic Chemical 1 of 11 results Mar 1, 2005 Mar 1, 2005
Xylenes, Total 2955 Organic Chemical 1 of 13 results Jul 12, 2004 Jul 12, 2004

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 91–100 of 463 samples, newest first — collected January 21, 2020 to June 2, 2020. The summary above covers all 463.

30 results from the 10 samples listed here: 21 detected, 9 not detected. Across the whole record it is 852 of 1,706. 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 Moore Bayou Water Association, every result from 91 to 100 of 463 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 2, 2020 02:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-068PB
Laboratory
MSDH Lab
0.1324 mg/l , sample collected Jun 2, 2020 02:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.001 mg/l , sample collected Jun 2, 2020 02:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 2, 2020 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-067PB
Laboratory
MSDH Lab
0.0335 mg/l , sample collected Jun 2, 2020 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0014 mg/l , sample collected Jun 2, 2020 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 2, 2020 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-066PB
Laboratory
MSDH Lab
0.0135 mg/l , sample collected Jun 2, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0006 mg/l , sample collected Jun 2, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 2, 2020 06:38
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-065PB
Laboratory
MSDH Lab
0.0206 mg/l , sample collected Jun 2, 2020 06:38, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0013 mg/l , sample collected Jun 2, 2020 06:38, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 2, 2020 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-064PB
Laboratory
MSDH Lab
0.9619 mg/l , sample collected Jun 2, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0016 mg/l , sample collected Jun 2, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 2, 2020 02:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-063PB
Laboratory
MSDH Lab
0.0937 mg/l , sample collected Jun 2, 2020 02:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0006 mg/l , sample collected Jun 2, 2020 02:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 2, 2020 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-062PB
Laboratory
MSDH Lab
0.1077 mg/l , sample collected Jun 2, 2020 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0011 mg/l , sample collected Jun 2, 2020 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jun 1, 2020 04:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200603-061PB
Laboratory
MSDH Lab
0.101 mg/l , sample collected Jun 1, 2020 04:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0006 mg/l , sample collected Jun 1, 2020 04:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Apr 8, 2020 12:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
200409-018IN
Laboratory
MSDH Lab
0.0026 mg/l , sample collected Apr 8, 2020 12:00, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0087 mg/l , sample collected Apr 8, 2020 12:00, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 12:00, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0024 mg/l , sample collected Apr 8, 2020 12:00, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.347 mg/l , sample collected Apr 8, 2020 12:00, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 12:00, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 12:00, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.0077 mg/l , sample collected Apr 8, 2020 12:00, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 12:00, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 12:00, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 12:00, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jan 21, 2020
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
200122-020NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 21, 2020, sampling point TF101 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, sampling point TF101 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, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020

Routine (10).