Chemical and radiological sample results

MS0140052 , Moore Bayou W/A #3

24 of the 57 analytes this system has been tested for have been detected at least once, across 257 samples on record.

The other 33 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 257 samples on record, detections range from May 14, 2002 to March 26, 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 W/A #3, 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
TTHM 2950	Organic Chemical	68 of 70 results	Jun 24, 2008	Mar 26, 2025
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	66 of 69 results	Jun 24, 2008	Oct 7, 2024
Copper, Free 1022	Inorganic Chemical	55 of 55 results	Jun 21, 2007	Aug 13, 2024
Lead 1030	Inorganic Chemical	46 of 55 results	Jun 21, 2007	Aug 13, 2024
Bromoform 2942	Organic Chemical	36 of 38 results	Jun 24, 2008	Aug 31, 2020
Bromodichloromethane 2943	Organic Chemical	36 of 38 results	Jun 24, 2008	Aug 31, 2020
Dibromochloromethane 2944	Organic Chemical	36 of 38 results	Jun 24, 2008	Aug 31, 2020
Dibromoacetic Acid 2454	Organic Chemical	35 of 37 results	Jun 24, 2008	Aug 31, 2020
Chloroform 2941	Organic Chemical	35 of 38 results	Jun 24, 2008	Aug 31, 2020
Trichloroacetic Acid 2452	Organic Chemical	28 of 37 results	Jun 24, 2008	Aug 31, 2020
Dichloroacetic Acid 2451	Organic Chemical	24 of 37 results	Jun 24, 2008	Aug 31, 2020
Monobromoacetic Acid 2453	Organic Chemical	14 of 37 results	May 19, 2016	Dec 2, 2019
Barium 1010	Inorganic Chemical	13 of 13 results	May 14, 2002	Feb 3, 2025
Fluoride 1025	Inorganic Chemical	12 of 12 results	May 14, 2002	Feb 3, 2025
Selenium 1045	Inorganic Chemical	11 of 13 results	Sep 3, 2003	May 9, 2022
Arsenic 1005	Inorganic Chemical	10 of 13 results	Jan 26, 2004	May 9, 2022
Chromium 1020	Inorganic Chemical	7 of 13 results	May 14, 2002	Feb 3, 2025
Nickel 1036	Inorganic Chemical	5 of 13 results	May 14, 2002	Apr 21, 2014
Gross Alpha, Incl. Radon & U 4002	Radionuclide	5 of 5 results	Dec 12, 2011	Jul 11, 2012
Combined Radium (-226 & -228) 4010	Radionuclide	5 of 5 results	Dec 12, 2011	Jul 11, 2012
Radium-226 4020	Radionuclide	5 of 5 results	Dec 12, 2011	Jul 11, 2012
Sodium 1052	Inorganic Chemical	2 of 2 results	Sep 24, 2019	Sep 24, 2019
Monochloroacetic Acid 2450	Organic Chemical	2 of 37 results	Nov 21, 2017	Nov 21, 2017
Xylenes, Total 2955	Organic Chemical	1 of 18 results	Jul 28, 2008	Jul 28, 2008

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 257 samples, newest first — collected May 15, 2017 to May 1, 2018. The summary above covers all 257.

50 results from the 10 samples listed here: 45 detected, 5 not detected. Across the whole record it is 557 of 1,176. 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 W/A #3, every result from 131 to 140 of 257 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 1, 2018 02:25 Sampling point TF101 Sample type Routine Lab sample 180502-027CN Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 1, 2018 02:25, sampling point TF101	Cyanide 1024 EPA method QC10204001X	Jan 1, 2017 – Dec 31, 2019
Collected Nov 21, 2017 01:05 Sampling point SMT Location withheld Sample type Routine Lab sample 171122-008HA Laboratory MSDH Lab
0.064 mg/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.002 mg/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.011 mg/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.079 mg/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Total Haloacetic Acids (Haa5) 2456	Oct 1, 2017 – Dec 31, 2017
Collected Nov 21, 2017 12:45 Sampling point SMH Location withheld Sample type Routine Lab sample 171122-007HA Laboratory MSDH Lab
0.093 mg/l , sample collected Nov 21, 2017 12:45, sampling point SMH	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.002 mg/l , sample collected Nov 21, 2017 12:45, sampling point SMH	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.002 mg/l , sample collected Nov 21, 2017 12:45, sampling point SMH	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Nov 21, 2017 12:45, sampling point SMH	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.011 mg/l , sample collected Nov 21, 2017 12:45, sampling point SMH	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.109 mg/l , sample collected Nov 21, 2017 12:45, sampling point SMH	Total Haloacetic Acids (Haa5) 2456	Oct 1, 2017 – Dec 31, 2017
Collected Nov 21, 2017 01:05 Sampling point SMT Location withheld Sample type Routine Lab sample 171122-008TH Laboratory MSDH Lab
3.98 ug/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Chloroform 2941 EPA method 524.2	Not recorded
54.3 ug/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Bromoform 2942 EPA method 524.2	Not recorded
11.5 ug/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Bromodichloromethane 2943 EPA method 524.2	Not recorded
32.2 ug/l , sample collected Nov 21, 2017 01:05, sampling point SMT	Dibromochloromethane 2944 EPA method 524.2	Not recorded
102 ug/l , sample collected Nov 21, 2017 01:05, sampling point SMT	TTHM 2950	Oct 1, 2017 – Dec 31, 2017
Collected Nov 21, 2017 12:15 Sampling point SMH Location withheld Sample type Routine Lab sample 171122-007TH Laboratory MSDH Lab
3.8 ug/l , sample collected Nov 21, 2017 12:15, sampling point SMH	Chloroform 2941 EPA method 524.2	Not recorded
50.1 ug/l , sample collected Nov 21, 2017 12:15, sampling point SMH	Bromoform 2942 EPA method 524.2	Not recorded
10.6 ug/l , sample collected Nov 21, 2017 12:15, sampling point SMH	Bromodichloromethane 2943 EPA method 524.2	Not recorded
30 ug/l , sample collected Nov 21, 2017 12:15, sampling point SMH	Dibromochloromethane 2944 EPA method 524.2	Not recorded
95 ug/l , sample collected Nov 21, 2017 12:15, sampling point SMH	TTHM 2950	Oct 1, 2017 – Dec 31, 2017
Collected Sep 18, 2017 15:05 Sampling point SMT Location withheld Sample type Routine Lab sample 170919-002HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 18, 2017 15:05, sampling point SMT	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.002 mg/l , sample collected Sep 18, 2017 15:05, sampling point SMT	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Sep 18, 2017 15:05, sampling point SMT	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 18, 2017 15:05, sampling point SMT	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.014 mg/l , sample collected Sep 18, 2017 15:05, sampling point SMT	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.017 mg/l , sample collected Sep 18, 2017 15:05, sampling point SMT	Total Haloacetic Acids (Haa5) 2456	Jul 1, 2017 – Sep 30, 2017
Collected Sep 18, 2017 15:30 Sampling point SMH Location withheld Sample type Routine Lab sample 170919-001HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 18, 2017 15:30, sampling point SMH	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.003 mg/l , sample collected Sep 18, 2017 15:30, sampling point SMH	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Sep 18, 2017 15:30, sampling point SMH	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 18, 2017 15:30, sampling point SMH	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.004 mg/l , sample collected Sep 18, 2017 15:30, sampling point SMH	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.008 mg/l , sample collected Sep 18, 2017 15:30, sampling point SMH	Total Haloacetic Acids (Haa5) 2456	Jul 1, 2017 – Sep 30, 2017
Collected Sep 18, 2017 15:30 Sampling point SMH Location withheld Sample type Routine Lab sample 170919-001TH Laboratory MSDH Lab
3.88 ug/l , sample collected Sep 18, 2017 15:30, sampling point SMH	Chloroform 2941 EPA method 524.2	Not recorded
72.2 ug/l , sample collected Sep 18, 2017 15:30, sampling point SMH	Bromoform 2942 EPA method 524.2	Not recorded
6.96 ug/l , sample collected Sep 18, 2017 15:30, sampling point SMH	Bromodichloromethane 2943 EPA method 524.2	Not recorded
15.9 ug/l , sample collected Sep 18, 2017 15:30, sampling point SMH	Dibromochloromethane 2944 EPA method 524.2	Not recorded
98.9 ug/l , sample collected Sep 18, 2017 15:30, sampling point SMH	TTHM 2950	Jul 1, 2017 – Sep 30, 2017
Collected May 15, 2017 03:15 Sampling point SMT Location withheld Sample type Routine Lab sample 170516-004TH Laboratory MSDH Lab
4.59 ug/l , sample collected May 15, 2017 03:15, sampling point SMT	Chloroform 2941 EPA method 524.2	Not recorded
82.4 ug/l , sample collected May 15, 2017 03:15, sampling point SMT	Bromoform 2942 EPA method 524.2	Not recorded
12.2 ug/l , sample collected May 15, 2017 03:15, sampling point SMT	Bromodichloromethane 2943 EPA method 524.2	Not recorded
40.3 ug/l , sample collected May 15, 2017 03:15, sampling point SMT	Dibromochloromethane 2944 EPA method 524.2	Not recorded
139.5 ug/l , sample collected May 15, 2017 03:15, sampling point SMT	TTHM 2950	Apr 1, 2017 – Jun 30, 2017
Collected May 15, 2017 03:55 Sampling point SMH Location withheld Sample type Routine Lab sample 170516-003TH Laboratory MSDH Lab
5.21 ug/l , sample collected May 15, 2017 03:55, sampling point SMH	Chloroform 2941 EPA method 524.2	Not recorded
115 ug/l , sample collected May 15, 2017 03:55, sampling point SMH	Bromoform 2942 EPA method 524.2	Not recorded
13.9 ug/l , sample collected May 15, 2017 03:55, sampling point SMH	Bromodichloromethane 2943 EPA method 524.2	Not recorded
48.7 ug/l , sample collected May 15, 2017 03:55, sampling point SMH	Dibromochloromethane 2944 EPA method 524.2	Not recorded
183 ug/l , sample collected May 15, 2017 03:55, sampling point SMH	TTHM 2950	Apr 1, 2017 – Jun 30, 2017

Collected
May 1, 2018 02:25

Sampling point
TF101

Sample type
Routine

Lab sample
180502-027CN

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2017 – Dec 31, 2019
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Nov 21, 2017 01:05

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
171122-008HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  0.064 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
  0.002 mg/l
  
  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
  0.011 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.079 mg/l
  
  Monitoring period
  Oct 1, 2017 – Dec 31, 2017
Collected
Nov 21, 2017 12:45

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
171122-007HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  0.093 mg/l
  
  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
  0.001 mg/l
  
  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
  0.109 mg/l
  
  Monitoring period
  Oct 1, 2017 – Dec 31, 2017
Collected
Nov 21, 2017 01:05

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
171122-008TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  3.98 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  54.3 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  11.5 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  32.2 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  102 ug/l
  
  Monitoring period
  Oct 1, 2017 – Dec 31, 2017
Collected
Nov 21, 2017 12:15

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
171122-007TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  3.8 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  50.1 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  10.6 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  30 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  95 ug/l
  
  Monitoring period
  Oct 1, 2017 – Dec 31, 2017
Collected
Sep 18, 2017 15:05

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
170919-002HA

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
  0.001 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
  0.014 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.017 mg/l
  
  Monitoring period
  Jul 1, 2017 – Sep 30, 2017
Collected
Sep 18, 2017 15:30

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
170919-001HA

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
  0.001 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
  0.004 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.008 mg/l
  
  Monitoring period
  Jul 1, 2017 – Sep 30, 2017
Collected
Sep 18, 2017 15:30

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
170919-001TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  3.88 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  72.2 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  6.96 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  15.9 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  98.9 ug/l
  
  Monitoring period
  Jul 1, 2017 – Sep 30, 2017
Collected
May 15, 2017 03:15

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
170516-004TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  4.59 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  82.4 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  12.2 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  40.3 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  139.5 ug/l
  
  Monitoring period
  Apr 1, 2017 – Jun 30, 2017
Collected
May 15, 2017 03:55

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
170516-003TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  5.21 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  115 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  13.9 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  48.7 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  183 ug/l
  
  Monitoring period
  Apr 1, 2017 – Jun 30, 2017

Routine (10).