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 311–320 of 463 samples, newest first — collected June 12, 2006 to June 19, 2007. The summary above covers all 463.
31 results from the 10 samples listed here: 24 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.
Units in this table
TTHM is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.5047 mg/l , sample collected Jun 19, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0014 mg/l , sample collected Jun 19, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0242 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Apr 24, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2007 – Jun 30, 2007 |
|
||
| 1.23 ug/l , sample collected Apr 24, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 17 ug/l , sample collected Apr 24, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 5.14 ug/l , sample collected Apr 24, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 16.6 ug/l , sample collected Apr 24, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 39.97 ug/l , sample collected Apr 24, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Apr 1, 2007 – Jun 30, 2007 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 1.33 ug/l , sample collected Feb 15, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 46.9 ug/l , sample collected Feb 15, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 7.58 ug/l , sample collected Feb 15, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 33.8 ug/l , sample collected Feb 15, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 89.61 ug/l , sample collected Feb 15, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2007 – Mar 31, 2007 |
|
||
| 0.0117 mg/l , sample collected Feb 15, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2007 – Mar 31, 2007 |
|
||
| 0.0007 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Nov 27, 2006, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2006 – Dec 31, 2006 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 27, 2006, sampling point MRT000 | Chloroform 2941 EPA method 551.1 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 27, 2006, sampling point MRT000 | Bromoform 2942 EPA method 551.1 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 27, 2006, sampling point MRT000 | Bromodichloromethane 2943 EPA method 551.1 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 27, 2006, sampling point MRT000 | Dibromochloromethane 2944 EPA method 551.1 | Not recorded |
| 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Nov 27, 2006, sampling point MRT000 | TTHM 2950 EPA method 551.1 | Oct 1, 2006 – Dec 31, 2006 |
|
||
| 2.68 ug/l , sample collected Aug 8, 2006, sampling point MRT000 | Chloroform 2941 EPA method 551.1 | Not recorded |
| 36.3 ug/l , sample collected Aug 8, 2006, sampling point MRT000 | Bromoform 2942 EPA method 551.1 | Not recorded |
| 14.9 ug/l , sample collected Aug 8, 2006, sampling point MRT000 | Bromodichloromethane 2943 EPA method 551.1 | Not recorded |
| 46.3 ug/l , sample collected Aug 8, 2006, sampling point MRT000 | Dibromochloromethane 2944 EPA method 551.1 | Not recorded |
| 100.18 ug/l , sample collected Aug 8, 2006, sampling point MRT000 | TTHM 2950 EPA method 551.1 | Jul 1, 2006 – Sep 30, 2006 |
|
||
| 1 mg/l , sample collected Jun 12, 2006, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| 0.93 mg/l , sample collected Jun 12, 2006, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| 0.06 mg/l , sample collected Jun 12, 2006, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
-
- Collected
- Jun 19, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070620-162PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.5047 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0014 mg/l
-
- Collected
- Apr 24, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070425-005HA
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2007 – Jun 30, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0242 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Apr 24, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070425-005TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 1.23 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 17 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 5.14 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 16.6 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 39.97 ug/l
- Monitoring period
- Apr 1, 2007 – Jun 30, 2007
-
- Collected
- Apr 9, 2007
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 070410-026NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Feb 15, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070216-001TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 1.33 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 46.9 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 7.58 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 33.8 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 89.61 ug/l
- Monitoring period
- Jan 1, 2007 – Mar 31, 2007
-
- Collected
- Feb 15, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070216-001HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Mar 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0117 mg/l
-
- Collected
- Nov 27, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 061128-010HA
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2006 – Dec 31, 2006
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0007 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Nov 27, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 061128-010TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 551.1
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 551.1
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 551.1
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 551.1
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 551.1
- Result
- 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
- Monitoring period
- Oct 1, 2006 – Dec 31, 2006
-
- Collected
- Aug 8, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060809-002TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 551.1
- Result
- 2.68 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 551.1
- Result
- 36.3 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 551.1
- Result
- 14.9 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 551.1
- Result
- 46.3 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 551.1
- Result
- 100.18 ug/l
- Monitoring period
- Jul 1, 2006 – Sep 30, 2006
-
- Collected
- Jun 12, 2006
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 060613-141NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2006
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- 1 mg/l
-
Nitrate 1040 EPA method 353.2
- Result
- 0.93 mg/l
-
Nitrite 1041 EPA method 353.2
- Result
- 0.06 mg/l
Routine (10).