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 141–150 of 463 samples, newest first — collected August 22, 2016 to December 1, 2016. The summary above covers all 463.

35 results from the 10 samples listed here: 28 detected, 7 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 141 to 150 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 Dec 1, 2016 01:20 Sampling point SM2 Location withheld Sample type Routine Lab sample 161202-013TH Laboratory MSDH Lab
2.23 ug/l , sample collected Dec 1, 2016 01:20, sampling point SM2	Chloroform 2941 EPA method 524.2	Not recorded
42.7 ug/l , sample collected Dec 1, 2016 01:20, sampling point SM2	Bromoform 2942 EPA method 524.2	Not recorded
10.4 ug/l , sample collected Dec 1, 2016 01:20, sampling point SM2	Bromodichloromethane 2943 EPA method 524.2	Not recorded
25.8 ug/l , sample collected Dec 1, 2016 01:20, sampling point SM2	Dibromochloromethane 2944 EPA method 524.2	Not recorded
81.1 ug/l , sample collected Dec 1, 2016 01:20, sampling point SM2	TTHM 2950	Oct 1, 2016 – Dec 31, 2016
Collected Dec 1, 2016 03:05 Sampling point SM1 Location withheld Sample type Routine Lab sample 161202-014HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Dec 1, 2016 03:05, sampling point SM1	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.003 mg/l , sample collected Dec 1, 2016 03:05, sampling point SM1	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 1, 2016 03:05, sampling point SM1	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Dec 1, 2016 03:05, sampling point SM1	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.016 mg/l , sample collected Dec 1, 2016 03:05, sampling point SM1	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.02 mg/l , sample collected Dec 1, 2016 03:05, sampling point SM1	Total Haloacetic Acids (Haa5) 2456	Oct 1, 2016 – Dec 31, 2016
Collected Dec 1, 2016 01:20 Sampling point SM2 Location withheld Sample type Routine Lab sample 161202-013HA Laboratory MSDH Lab
0.004 mg/l , sample collected Dec 1, 2016 01:20, sampling point SM2	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Dec 1, 2016 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 Dec 1, 2016 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 Dec 1, 2016 01:20, sampling point SM2	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.011 mg/l , sample collected Dec 1, 2016 01:20, sampling point SM2	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.016 mg/l , sample collected Dec 1, 2016 01:20, sampling point SM2	Total Haloacetic Acids (Haa5) 2456	Oct 1, 2016 – Dec 31, 2016
Collected Sep 22, 2016 06:24 Sampling point DS000 Distribution Sample type Routine Lab sample 160927-081PB Laboratory MSDH Lab
0.0033 mg/l , sample collected Sep 22, 2016 06:24, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
0.0012 mg/l , sample collected Sep 22, 2016 06:24, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
Collected Sep 22, 2016 07:30 Sampling point DS000 Distribution Sample type Routine Lab sample 160927-073PB Laboratory MSDH Lab
0.0036 mg/l , sample collected Sep 22, 2016 07:30, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 22, 2016 07:30, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
Collected Sep 21, 2016 07:00 Sampling point DS000 Distribution Sample type Routine Lab sample 160927-080PB Laboratory MSDH Lab
0.2824 mg/l , sample collected Sep 21, 2016 07:00, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
0.0012 mg/l , sample collected Sep 21, 2016 07:00, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
Collected Sep 21, 2016 06:20 Sampling point DS000 Distribution Sample type Routine Lab sample 160927-079PB Laboratory MSDH Lab
0.0948 mg/l , sample collected Sep 21, 2016 06:20, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
0.0012 mg/l , sample collected Sep 21, 2016 06:20, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
Collected Sep 21, 2016 05:30 Sampling point DS000 Distribution Sample type Routine Lab sample 160927-078PB Laboratory MSDH Lab
0.0634 mg/l , sample collected Sep 21, 2016 05:30, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
0.0016 mg/l , sample collected Sep 21, 2016 05:30, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
Collected Sep 21, 2016 06:37 Sampling point DS000 Distribution Sample type Routine Lab sample 160927-076PB Laboratory MSDH Lab
0.0708 mg/l , sample collected Sep 21, 2016 06:37, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
0.001 mg/l , sample collected Sep 21, 2016 06:37, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2015 – Dec 31, 2017
Collected Aug 22, 2016 01:05 Sampling point SM2 Location withheld Sample type Routine Lab sample 160823-017HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 01:05, sampling point SM2	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.002 mg/l , sample collected Aug 22, 2016 01:05, sampling point SM2	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.002 mg/l , sample collected Aug 22, 2016 01:05, sampling point SM2	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 01:05, sampling point SM2	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.011 mg/l , sample collected Aug 22, 2016 01:05, sampling point SM2	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.015 mg/l , sample collected Aug 22, 2016 01:05, sampling point SM2	Total Haloacetic Acids (Haa5) 2456	Jul 1, 2016 – Sep 30, 2016

Collected
Dec 1, 2016 01:20

Sampling point
SM2 Location withheld

Sample type
Routine

Lab sample
161202-013TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  2.23 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  42.7 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  10.4 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  25.8 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  81.1 ug/l
  
  Monitoring period
  Oct 1, 2016 – Dec 31, 2016
Collected
Dec 1, 2016 03:05

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
161202-014HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.003 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  0.001 mg/l
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  0.016 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.02 mg/l
  
  Monitoring period
  Oct 1, 2016 – Dec 31, 2016
Collected
Dec 1, 2016 01:20

Sampling point
SM2 Location withheld

Sample type
Routine

Lab sample
161202-013HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  0.004 mg/l
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.001 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  0.011 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.016 mg/l
  
  Monitoring period
  Oct 1, 2016 – Dec 31, 2016
Collected
Sep 22, 2016 06:24

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
160927-081PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2015 – Dec 31, 2017
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0033 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0012 mg/l
Collected
Sep 22, 2016 07:30

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
160927-073PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2015 – Dec 31, 2017
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0036 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Sep 21, 2016 07:00

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
160927-080PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2015 – Dec 31, 2017
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.2824 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0012 mg/l
Collected
Sep 21, 2016 06:20

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
160927-079PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2015 – Dec 31, 2017
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0948 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0012 mg/l
Collected
Sep 21, 2016 05:30

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
160927-078PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2015 – Dec 31, 2017
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0634 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0016 mg/l
Collected
Sep 21, 2016 06:37

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
160927-076PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2015 – Dec 31, 2017
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0708 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.001 mg/l
Collected
Aug 22, 2016 01:05

Sampling point
SM2 Location withheld

Sample type
Routine

Lab sample
160823-017HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.002 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.002 mg/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  0.011 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.015 mg/l
  
  Monitoring period
  Jul 1, 2016 – Sep 30, 2016

Routine (10).