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
MS0150001 , Copiah W/A - Bayou Pierre #1
23 of the 62 analytes this system has been tested for have been detected at least once, across 466 samples on record.
The other 39 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 466 samples on record, detections range from May 4, 1994 to June 2, 2026. These figures cover the whole record; the list of samples further down is narrowed.
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 223 results | Dec 27, 2001 | Sep 30, 2025 |
| Lead 1030 | Inorganic Chemical | 127 of 223 results | May 4, 1994 | Sep 30, 2025 |
| Barium 1010 | Inorganic Chemical | 34 of 34 results | Nov 20, 2003 | Feb 5, 2025 |
| Fluoride 1025 | Inorganic Chemical | 31 of 35 results | Nov 20, 2003 | Feb 5, 2025 |
| Nickel 1036 | Inorganic Chemical | 14 of 34 results | Nov 20, 2003 | May 23, 2022 |
| Chromium 1020 | Inorganic Chemical | 13 of 34 results | Nov 20, 2003 | Feb 5, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 15 results | Mar 22, 2012 | Oct 9, 2012 |
| Sodium 1052 | Inorganic Chemical | 9 of 9 results | Oct 28, 2019 | Oct 15, 2024 |
| TTHM 2950 | Organic Chemical | 7 of 12 results | Jun 27, 2007 | Jun 2, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 7 of 13 results | Jun 27, 2007 | Mar 13, 2024 |
| Sulfate 1055 | Inorganic Chemical | 7 of 7 results | Nov 20, 2003 | Mar 11, 2021 |
| Chloroform 2941 | Organic Chemical | 3 of 8 results | Aug 27, 2014 | Jun 2, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 3 of 8 results | Aug 27, 2014 | Jun 2, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 3 of 8 results | Aug 27, 2014 | Jun 2, 2026 |
| Cadmium 1015 | Inorganic Chemical | 3 of 34 results | Mar 2, 2005 | Mar 2, 2005 |
| Selenium 1045 | Inorganic Chemical | 3 of 34 results | Mar 2, 2005 | Mar 2, 2005 |
| Dichloroacetic Acid 2451 | Organic Chemical | 2 of 7 results | Aug 27, 2014 | Aug 11, 2020 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 7 results | Aug 27, 2014 | Aug 11, 2020 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 53 results | Dec 28, 2004 | Jan 24, 2005 |
| Ethylbenzene 2992 | Organic Chemical | 2 of 53 results | Dec 28, 2004 | Jan 24, 2005 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | Mar 11, 2021 | Mar 11, 2021 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 1 of 1 result | Mar 11, 2021 | Mar 11, 2021 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Mar 11, 2021 | Mar 11, 2021 |
Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The table below lists 11–20 of 53 samples, newest first — collected September 30, 2025 to September 30, 2025. The summary above covers all 53.
20 results from the 10 samples listed here: 20 detected, 0 not detected. Across the whole record it is 438 of 2,348. 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 10 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 |
|---|---|---|
|
||
| 0.13 mg/l , sample collected Sep 30, 2025 08:00, sampling point LC0018 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 30, 2025 08:00, sampling point LC0018 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.148 mg/l , sample collected Sep 30, 2025 06:00, sampling point LC0017 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.9 ug/l , sample collected Sep 30, 2025 06:00, sampling point LC0017 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.125 mg/l , sample collected Sep 30, 2025 07:00, sampling point LC0016 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 30, 2025 07:00, sampling point LC0016 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.143 mg/l , sample collected Sep 30, 2025 05:00, sampling point LC0015 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.8 ug/l , sample collected Sep 30, 2025 05:00, sampling point LC0015 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.118 mg/l , sample collected Sep 30, 2025 07:45, sampling point LC0014 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.8 ug/l , sample collected Sep 30, 2025 07:45, sampling point LC0014 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.117 mg/l , sample collected Sep 30, 2025 05:45, sampling point LC0013 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 30, 2025 05:45, sampling point LC0013 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.108 mg/l , sample collected Sep 30, 2025 06:45, sampling point LC0012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 30, 2025 06:45, sampling point LC0012 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.11 mg/l , sample collected Sep 30, 2025 06:15, sampling point LC0011 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 30, 2025 06:15, sampling point LC0011 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.1 mg/l , sample collected Sep 30, 2025 07:00, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 30, 2025 07:00, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.104 mg/l , sample collected Sep 30, 2025 06:00, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 30, 2025 06:00, sampling point LC0009 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
-
- Collected
- Sep 30, 2025 08:00
- Sampling point
- LC0018 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-070
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.13 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 30, 2025 06:00
- Sampling point
- LC0017 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-069
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.148 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.9 ug/l
-
- Collected
- Sep 30, 2025 07:00
- Sampling point
- LC0016 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-068
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.125 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 30, 2025 05:00
- Sampling point
- LC0015 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-067
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.143 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.8 ug/l
-
- Collected
- Sep 30, 2025 07:45
- Sampling point
- LC0014 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-063
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.118 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.8 ug/l
-
- Collected
- Sep 30, 2025 05:45
- Sampling point
- LC0013 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-066
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.117 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 30, 2025 06:45
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-064
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.108 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 30, 2025 06:15
- Sampling point
- LC0011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-062
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.11 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 30, 2025 07:00
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-065
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 30, 2025 06:00
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-251001-061
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.104 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
Routine (10).