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
MS0760076 , Black Bayou Water Assn.
55 of the 73 analytes this system has been tested for have been detected at least once, across 1,097 samples on record.
The other 18 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 1,097 samples on record, detections range from January 29, 2002 to July 22, 2026. 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 |
|---|---|---|---|---|
| Fluoride 1025 | Inorganic Chemical | 115 of 115 results | Jan 29, 2002 | Jun 29, 2026 |
| TTHM 2950 | Organic Chemical | 112 of 114 results | Aug 25, 2004 | Feb 25, 2026 |
| Barium 1010 | Inorganic Chemical | 110 of 112 results | Jan 29, 2002 | Jun 12, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 107 of 109 results | Aug 25, 2004 | Feb 25, 2026 |
| Copper, Free 1022 | Inorganic Chemical | 107 of 107 results | Aug 21, 2007 | Aug 10, 2023 |
| Chromium 1020 | Inorganic Chemical | 92 of 112 results | Jan 29, 2002 | Oct 7, 2025 |
| Chloroform 2941 | Organic Chemical | 71 of 73 results | Mar 1, 2006 | Feb 25, 2026 |
| Selenium 1045 | Inorganic Chemical | 64 of 112 results | Nov 17, 2003 | Oct 7, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 62 of 73 results | Mar 1, 2006 | Feb 25, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 61 of 63 results | Feb 25, 2008 | Feb 25, 2026 |
| Arsenic 1005 | Inorganic Chemical | 59 of 112 results | Nov 17, 2003 | Oct 7, 2025 |
| Lead 1030 | Inorganic Chemical | 59 of 107 results | Aug 21, 2007 | Aug 10, 2023 |
| Dibromochloromethane 2944 | Organic Chemical | 55 of 73 results | Mar 1, 2006 | Feb 25, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 53 of 63 results | Feb 25, 2008 | Feb 25, 2026 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 50 of 50 results | Dec 5, 2011 | Oct 9, 2012 |
| Xylenes, Total 2955 | Organic Chemical | 42 of 230 results | Jun 27, 2002 | Aug 3, 2021 |
| Dibromoacetic Acid 2454 | Organic Chemical | 30 of 63 results | Jul 20, 2009 | Feb 25, 2026 |
| Nickel 1036 | Inorganic Chemical | 28 of 110 results | Nov 17, 2003 | Jul 8, 2025 |
| Bromoform 2942 | Organic Chemical | 27 of 73 results | May 23, 2006 | Mar 25, 2020 |
| Sodium 1052 | Inorganic Chemical | 19 of 19 results | Aug 30, 2006 | Jul 22, 2026 |
| Monobromoacetic Acid 2453 | Organic Chemical | 17 of 63 results | Jun 11, 2012 | Sep 28, 2020 |
| Ethylbenzene 2992 | Organic Chemical | 17 of 230 results | Sep 26, 2002 | Aug 7, 2019 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 14 of 203 results | Nov 29, 2004 | Jul 22, 2026 |
| Nitrate 1040 | Inorganic Chemical | 14 of 203 results | Nov 29, 2004 | Jul 22, 2026 |
| Nitrite 1041 | Inorganic Chemical | 14 of 203 results | Aug 7, 2006 | Apr 24, 2024 |
| Monochloroacetic Acid 2450 | Organic Chemical | 14 of 63 results | Sep 15, 2009 | Jun 30, 2020 |
| Dichloromethane 2964 | Organic Chemical | 8 of 230 results | Sep 8, 2004 | Mar 9, 2009 |
| P-Dichlorobenzene 2969 | Organic Chemical | 5 of 230 results | Jun 16, 2005 | Mar 12, 2009 |
| Cyanide 1024 | Inorganic Chemical | 4 of 110 results | Apr 12, 2004 | Jul 20, 2016 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Chloride 1017 | Inorganic Chemical | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Magnesium 1031 | Inorganic Chemical | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Manganese 1032 | Inorganic Chemical | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Potassium 1042 | Inorganic Chemical | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Sulfate 1055 | Inorganic Chemical | 3 of 25 results | Nov 3, 2003 | Apr 1, 2009 |
| Residue, Total, Filterable 1057 | Water Quality | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Carbon Dioxide 1901 | Water Quality | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Color 1905 | Water Quality | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| Calculated Sodium NACA | Water Quality | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| PH, Field Result PHFD | Water Quality | 3 of 3 results | Aug 30, 2006 | Apr 1, 2009 |
| PH 1925 | Water Quality | 2 of 2 results | Aug 30, 2006 | Apr 1, 2009 |
| Carbon Tetrachloride 2982 | Organic Chemical | 2 of 230 results | Sep 8, 2004 | Aug 18, 2008 |
| Cadmium 1015 | Inorganic Chemical | 2 of 112 results | May 2, 2005 | May 2, 2005 |
| Toluene 2991 | Organic Chemical | 2 of 230 results | Sep 26, 2002 | Nov 6, 2002 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 51 results | Jun 24, 2020 | Jun 24, 2020 |
| Radium-226 4020 | Radionuclide | 1 of 51 results | Jun 24, 2020 | Jun 24, 2020 |
| Radium-228 4030 | Radionuclide | 1 of 51 results | Jun 24, 2020 | Jun 24, 2020 |
| Combined Uranium 4006 | Radionuclide | 1 of 45 results | May 22, 2012 | May 22, 2012 |
| Temperature, Field Result TEMP | Water Quality | 1 of 1 result | Aug 30, 2006 | Aug 30, 2006 |
| Mercury 1035 | Inorganic Chemical | 1 of 110 results | Apr 25, 2006 | Apr 25, 2006 |
| Styrene 2996 | Organic Chemical | 1 of 230 results | Feb 23, 2005 | Feb 23, 2005 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 1 of 230 results | Sep 8, 2004 | Sep 8, 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 381–390 of 1,097 samples, newest first — collected June 15, 2017 to October 19, 2017. The summary above covers all 1,097.
28 results from the 10 samples listed here: 17 detected, 11 not detected. Across the whole record it is 1,488 of 8,173. 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0317 mg/l , sample collected Oct 19, 2017 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0016 mg/l , sample collected Oct 19, 2017 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0269 mg/l , sample collected Oct 19, 2017 05:24, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0014 mg/l , sample collected Oct 19, 2017 05:24, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.4989 mg/l , sample collected Oct 19, 2017 07:05, 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 Oct 19, 2017 07:05, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.171 mg/l , sample collected Oct 19, 2017 05:40, 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 Oct 19, 2017 05:40, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0284 mg/l , sample collected Oct 19, 2017 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0016 mg/l , sample collected Oct 19, 2017 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0297 mg/l , sample collected Oct 19, 2017 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0023 mg/l , sample collected Oct 19, 2017 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.1414 mg/l , sample collected Oct 19, 2017 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0011 mg/l , sample collected Oct 19, 2017 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0161 mg/l , sample collected Sep 28, 2017 06:00, 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 28, 2017 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 15, 2017 02:00, sampling point SMT | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jun 15, 2017 02:00, sampling point SMT | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2017 02:00, sampling point SMT | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2017 02:00, sampling point SMT | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2017 02:00, sampling point SMT | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jun 15, 2017 02:00, sampling point SMT | Total Haloacetic Acids (Haa5) 2456 | Apr 1, 2017 – Jun 30, 2017 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 15, 2017 01:30, sampling point SMH | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jun 15, 2017 01:30, sampling point SMH | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2017 01:30, sampling point SMH | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2017 01:30, sampling point SMH | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 15, 2017 01:30, sampling point SMH | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jun 15, 2017 01:30, sampling point SMH | Total Haloacetic Acids (Haa5) 2456 | Apr 1, 2017 – Jun 30, 2017 |
-
- Collected
- Oct 19, 2017 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 171020-027PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0317 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0016 mg/l
-
- Collected
- Oct 19, 2017 05:24
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 171020-026PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0269 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0014 mg/l
-
- Collected
- Oct 19, 2017 07:05
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 171020-025PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4989 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 19, 2017 05:40
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 171020-024PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.171 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 19, 2017 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 171020-023PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0284 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0016 mg/l
-
- Collected
- Oct 19, 2017 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 171020-022PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0297 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0023 mg/l
-
- Collected
- Oct 19, 2017 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 171020-021PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1414 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0011 mg/l
-
- Collected
- Sep 28, 2017 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 171004-004PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0161 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 15, 2017 02:00
- Sampling point
- SMT Location withheld
- Sample type
- Routine
- Lab sample
- 170616-002HA
- 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
- 0.004 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
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.004 mg/l
- Monitoring period
- Apr 1, 2017 – Jun 30, 2017
-
- Collected
- Jun 15, 2017 01:30
- Sampling point
- SMH Location withheld
- Sample type
- Routine
- Lab sample
- 170616-001HA
- 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
- 0.004 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
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.004 mg/l
- Monitoring period
- Apr 1, 2017 – Jun 30, 2017
Routine (10).