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 478 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 478 samples on record, detections range from May 4, 1994 to September 10, 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 | 36 of 42 results | Nov 20, 2003 | Sep 10, 2026 |
| 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 42 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 42 results | Mar 2, 2005 | Mar 2, 2005 |
| Selenium 1045 | Inorganic Chemical | 3 of 42 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 55 results | Dec 28, 2004 | Jan 24, 2005 |
| Ethylbenzene 2992 | Organic Chemical | 2 of 55 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 441–450 of 478 samples, newest first — collected October 27, 1994 to October 27, 1994. The summary above covers all 478.
20 results from the 10 samples listed here: 1 detected, 19 not detected. Across the whole record it is 440 of 2,460. 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 |
|---|---|---|
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Oct 27, 1994, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-070L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-064L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-056L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-054L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-052L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-051L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-047L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-046L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-039L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Oct 27, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 941028-038L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
Routine (10).