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.
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 |
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 71–80 of 466 samples, newest first — collected February 8, 2023 to September 28, 2023. The summary above covers all 466.
19 results from the 10 samples listed here: 10 detected, 9 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 7 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 |
|---|---|---|
|
||
| 0.0041 mg/l , sample collected Sep 28, 2023 06:30, sampling point LC0020 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 06:30, sampling point LC0020 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0504 mg/l , sample collected Sep 28, 2023 03:30, sampling point LC0011 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 03:30, sampling point LC0011 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.046 mg/l , sample collected Sep 28, 2023 05:00, sampling point LC0005 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| 0.7 ug/l , sample collected Sep 28, 2023 05:00, sampling point LC0005 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0074 mg/l , sample collected Sep 28, 2023 07:00, sampling point LC0022 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 07:00, sampling point LC0022 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0097 mg/l , sample collected Sep 28, 2023 06:30, sampling point LC0025 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 06:30, sampling point LC0025 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0061 mg/l , sample collected Sep 28, 2023 08:00, sampling point LC0017 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 08:00, sampling point LC0017 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 0.0055 mg/l , sample collected Sep 28, 2023 07:15, sampling point LC0015 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 07:15, sampling point LC0015 | Lead 1030 EPA method 200.8 | Jul 1, 2023 – Dec 31, 2023 |
|
||
| 1.02 ug/l , sample collected Sep 28, 2023 08:40, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2023 – Dec 31, 2023 |
|
||
| 4.89 ug/l , sample collected Sep 28, 2023 08:40, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2023 – Dec 31, 2023 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2023 13:10, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 8, 2023 13:10, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 8, 2023 13:10, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
-
- Collected
- Sep 28, 2023 06:30
- Sampling point
- LC0020 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230928-078
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0041 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 28, 2023 03:30
- Sampling point
- LC0011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230928-082
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0504 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 28, 2023 05:00
- Sampling point
- LC0005 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230928-077
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.046 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 28, 2023 07:00
- Sampling point
- LC0022 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230928-081
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0074 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 28, 2023 06:30
- Sampling point
- LC0025 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230928-080
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0097 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 28, 2023 08:00
- Sampling point
- LC0017 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230928-076
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0061 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 28, 2023 07:15
- Sampling point
- LC0015 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230928-075
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2023 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0055 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 28, 2023 08:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-230928-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 1.02 ug/l
-
- Collected
- Sep 28, 2023 08:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-230928-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 4.89 ug/l
-
- Collected
- Feb 8, 2023 13:10
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NI-230209-018
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
Routine (10).