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
MS0110011 , Entergy Operations, Inc
22 of the 53 analytes this system has been tested for have been detected at least once, across 237 samples on record.
The other 31 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 237 samples on record, detections range from July 7, 1993 to January 28, 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 |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 153 of 154 results | Jul 7, 1993 | Jul 6, 2022 |
| Lead 1030 | Inorganic Chemical | 89 of 154 results | Jul 7, 1993 | Jul 10, 2019 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 23 of 23 results | May 3, 2004 | Jan 28, 2026 |
| Nitrate 1040 | Inorganic Chemical | 23 of 23 results | May 3, 2004 | Jan 28, 2026 |
| TTHM 2950 | Organic Chemical | 12 of 13 results | May 10, 2004 | Dec 15, 2025 |
| Barium 1010 | Inorganic Chemical | 11 of 11 results | Mar 12, 2002 | Mar 11, 2025 |
| Chromium 1020 | Inorganic Chemical | 11 of 11 results | Mar 12, 2002 | Mar 11, 2025 |
| Fluoride 1025 | Inorganic Chemical | 11 of 11 results | Mar 12, 2002 | Mar 11, 2025 |
| Arsenic 1005 | Inorganic Chemical | 10 of 11 results | Jan 26, 2004 | Mar 11, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 12 results | Jun 4, 2007 | Mar 13, 2025 |
| Nickel 1036 | Inorganic Chemical | 9 of 11 results | Mar 12, 2002 | Mar 11, 2025 |
| Chloroform 2941 | Organic Chemical | 6 of 7 results | Sep 13, 2006 | Dec 15, 2025 |
| Bromoform 2942 | Organic Chemical | 6 of 7 results | Sep 13, 2006 | Dec 15, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 6 of 7 results | Sep 13, 2006 | Dec 15, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 6 of 7 results | Sep 13, 2006 | Dec 15, 2025 |
| Selenium 1045 | Inorganic Chemical | 5 of 11 results | Jan 26, 2004 | Apr 21, 2014 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 5 results | Jul 12, 2012 | Aug 18, 2014 |
| Dibromoacetic Acid 2454 | Organic Chemical | 3 of 5 results | Jul 12, 2012 | Aug 18, 2014 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Mar 12, 2002 | Jan 26, 2004 |
| Sodium 1052 | Inorganic Chemical | 1 of 1 result | Feb 3, 2021 | Feb 3, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 5 results | Jul 16, 2018 | Jul 16, 2018 |
| Uranium-238 4009 | Radionuclide | 1 of 1 result | Jan 23, 2006 | Jan 23, 2006 |
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 111–120 of 237 samples, newest first — collected June 4, 2007 to July 26, 2007. The summary above covers all 237.
22 results from the 10 samples listed here: 21 detected, 1 not detected. Across the whole record it is 401 of 842. 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 |
|---|---|---|
|
||
| 0.1167 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0054 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0976 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0021 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0794 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0032 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0444 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 26, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0294 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0018 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.4632 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0179 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0274 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0045 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0168 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0005 mg/l , sample collected Jul 26, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 1.81 ug/l , sample collected Jun 4, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 3.17 ug/l , sample collected Jun 4, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 3.69 ug/l , sample collected Jun 4, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 5.38 ug/l , sample collected Jun 4, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 14.05 ug/l , sample collected Jun 4, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 0.0062 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 Jun 4, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2007 – Dec 31, 2007 |
-
- Collected
- Jul 26, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070727-077PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1167 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0054 mg/l
-
- Collected
- Jul 26, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070727-076PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0976 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0021 mg/l
-
- Collected
- Jul 26, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070727-357PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0794 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0032 mg/l
-
- Collected
- Jul 26, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070727-362PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0444 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 26, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070727-361PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0294 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0018 mg/l
-
- Collected
- Jul 26, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070727-085PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4632 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0179 mg/l
-
- Collected
- Jul 26, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070727-351PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0274 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0045 mg/l
-
- Collected
- Jul 26, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070727-356PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0168 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0005 mg/l
-
- Collected
- Jun 4, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070605-013TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 1.81 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 3.17 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 3.69 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 5.38 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 14.05 ug/l
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
- Collected
- Jun 4, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070605-004HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0062 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.
Routine (10).