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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 351–360 of 463 samples, newest first — collected April 13, 2004 to September 14, 2004. The summary above covers all 463.

57 results from the 10 samples listed here: 13 detected, 44 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.

Units in this table

Xylenes, Total is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Chemical and radiological sample results for Moore Bayou Water Association, every result from 351 to 360 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
Sep 14, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040915-151PB
Laboratory
MSDH Lab
0.0621 mg/l , sample collected Sep 14, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
0.0007 mg/l , sample collected Sep 14, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 14, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040915-149PB
Laboratory
MSDH Lab
0.4643 mg/l , sample collected Sep 14, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
0.0022 mg/l , sample collected Sep 14, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 14, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040915-148PB
Laboratory
MSDH Lab
1.3977 mg/l , sample collected Sep 14, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
0.0041 mg/l , sample collected Sep 14, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 14, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040915-147PB
Laboratory
MSDH Lab
0.4837 mg/l , sample collected Sep 14, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
0.0023 mg/l , sample collected Sep 14, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 14, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040915-152PB
Laboratory
MSDH Lab
0.5824 mg/l , sample collected Sep 14, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
0.0005 mg/l , sample collected Sep 14, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Dec 31, 2004
Collected
Sep 13, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040914-032HA
Laboratory
MSDH Lab
0.014 mg/l , sample collected Sep 13, 2004, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2004 – Sep 30, 2004
Collected
Sep 13, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040914-032TH
Laboratory
MSDH Lab
113 ug/l , sample collected Sep 13, 2004, sampling point MRT000 TTHM 2950 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Collected
Jul 12, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040713-047VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
1.57 ug/l , sample collected Jul 12, 2004, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Benzene 2990 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Toluene 2991 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 12, 2004, sampling point TF101 Styrene 2996 EPA method 524.2 Jul 1, 2004 – Sep 30, 2004
Collected
May 3, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040504-038NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 3, 2004, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 3, 2004, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 3, 2004, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Collected
Apr 13, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040414-063VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Benzene 2990 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Toluene 2991 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 13, 2004, sampling point TF101 Styrene 2996 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004

Routine (10).