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.
| 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 221–230 of 463 samples, newest first — collected April 18, 2012 to October 29, 2012. The summary above covers all 463.
41 results from the 10 samples listed here: 25 detected, 16 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 2.47 ug/l , sample collected Oct 29, 2012 12:58, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 39.5 ug/l , sample collected Oct 29, 2012 12:58, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 12.2 ug/l , sample collected Oct 29, 2012 12:58, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 42.9 ug/l , sample collected Oct 29, 2012 12:58, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 97.1 ug/l , sample collected Oct 29, 2012 12:58, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 5.79 ug/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 89.4 ug/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 25.5 ug/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 86.1 ug/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 206.8 ug/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.005 mg/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.019 mg/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.029 mg/l , sample collected Aug 30, 2012 02:10, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 15:05, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.62 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 15:05, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 15:05, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.62 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 15:05, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 10:00, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.62 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 10:00, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 10:00, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.62 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 10:00, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2012 10:00, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 12:15, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.62 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 12:15, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 12:15, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.62 pci/l Minimum Reporting Level , sample collected Apr 24, 2012 12:15, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 24, 2012 14:15, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| 4.89 ug/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 31.4 ug/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 19.3 ug/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 46.5 ug/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 102.1 ug/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.005 mg/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| 0.019 mg/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.019 mg/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.047 mg/l , sample collected Apr 18, 2012 11:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Apr 1, 2012 – Jun 30, 2012 |
-
- Collected
- Oct 29, 2012 12:58
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 121030-006TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 2.47 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 39.5 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
- 42.9 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 97.1 ug/l
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Aug 30, 2012 02:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 120831-005TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 5.79 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 89.4 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 25.5 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 86.1 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 206.8 ug/l
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Aug 30, 2012 02:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 120831-005HA
- 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
- 0.005 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.019 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.029 mg/l
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 11, 2012 15:05
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 201210090076
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.39 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.62 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.5 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.62 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 10, 2012 10:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120711-047
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.39 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.62 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.5 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.62 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 10, 2012 10:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120711-047RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 24, 2012 12:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120425-064
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.39 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.62 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.5 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.62 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 24, 2012 14:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120425-064RU
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 18, 2012 11:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 120419-016TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 4.89 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 31.4 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 19.3 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 46.5 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 102.1 ug/l
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 18, 2012 11:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 120419-016HA
- 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
- 0.005 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- 0.019 mg/l
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.019 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.047 mg/l
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
Routine (10).