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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 131–140 of 463 samples, newest first — collected December 1, 2016 to May 22, 2017. The summary above covers all 463.

52 results from the 10 samples listed here: 23 detected, 29 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.

We withheld the location of 2 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 Moore Bayou Water Association, every result from 131 to 140 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
May 22, 2017 01:20
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
170523-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Apr 1, 2017 – Jun 30, 2017
Collected
May 22, 2017 02:05
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
170523-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Apr 1, 2017 – Jun 30, 2017
Collected
May 22, 2017 01:20
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
170523-002TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected May 22, 2017 01:20, sampling point SM2 TTHM 2950 Apr 1, 2017 – Jun 30, 2017
Collected
May 22, 2017 02:05
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
170523-001TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected May 22, 2017 02:05, sampling point SM1 TTHM 2950 Apr 1, 2017 – Jun 30, 2017
Collected
Mar 1, 2017 02:50
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
170302-002TH
Laboratory
MSDH Lab
3.99 ug/l , sample collected Mar 1, 2017 02:50, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
45.8 ug/l , sample collected Mar 1, 2017 02:50, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
16.8 ug/l , sample collected Mar 1, 2017 02:50, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
43.8 ug/l , sample collected Mar 1, 2017 02:50, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
110.4 ug/l , sample collected Mar 1, 2017 02:50, sampling point SM1 TTHM 2950 Jan 1, 2017 – Mar 31, 2017
Collected
Mar 1, 2017 02:05
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
170302-001TH
Laboratory
MSDH Lab
2.87 ug/l , sample collected Mar 1, 2017 02:05, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
61.1 ug/l , sample collected Mar 1, 2017 02:05, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
11.6 ug/l , sample collected Mar 1, 2017 02:05, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
34.3 ug/l , sample collected Mar 1, 2017 02:05, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
109.9 ug/l , sample collected Mar 1, 2017 02:05, sampling point SM2 TTHM 2950 Jan 1, 2017 – Mar 31, 2017
Collected
Mar 1, 2017 02:05
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
170302-003HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Mar 1, 2017 02:05, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 1, 2017 02:05, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Mar 1, 2017 02:05, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Mar 1, 2017 02:05, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.018 mg/l , sample collected Mar 1, 2017 02:05, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Mar 1, 2017 02:05, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Mar 31, 2017
Collected
Mar 1, 2017 02:50
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
170302-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Mar 1, 2017 02:50, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Mar 1, 2017 02:50, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Mar 1, 2017 02:50, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 1, 2017 02:50, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.019 mg/l , sample collected Mar 1, 2017 02:50, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.022 mg/l , sample collected Mar 1, 2017 02:50, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Mar 31, 2017
Collected
Jan 23, 2017 08:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
170124-015NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 23, 2017 08:40, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 23, 2017 08:40, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 23, 2017 08:40, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Dec 1, 2016 03:05
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
161202-014TH
Laboratory
MSDH Lab
2.23 ug/l , sample collected Dec 1, 2016 03:05, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
81.4 ug/l , sample collected Dec 1, 2016 03:05, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
8.96 ug/l , sample collected Dec 1, 2016 03:05, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
24.8 ug/l , sample collected Dec 1, 2016 03:05, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
117.4 ug/l , sample collected Dec 1, 2016 03:05, sampling point SM1 TTHM 2950 Oct 1, 2016 – Dec 31, 2016

Routine (10).