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.
Lead and copper summaries
Each row is one summary of one monitoring period, and the agency records more than one kind.
1,241–1,260 of 5,736 monitoring-period summaries. From monitoring periods beginning September 27, 2021 to September 27, 2026.
Choose a date range
Choose water systems
How to read a summary
Each row summarises one analyte over one monitoring period for one system. The number of samples behind each value is in the column beside it.
The agency records more than one kind of summary, and the Type column says which. Type 90 is the ninetieth percentile — the value 90% of that period’s samples fall at or below. The agency publishes no explanation for the other codes, so this page does not offer one: a value of another type is not a 90th percentile and must not be read as one.
| County | Water system | Analyte | Monitoring period | Facility | Samples | Measure |
|---|---|---|---|---|---|---|
| Copiah | Northeast Copiah Water Assn, MS0150010 | Lead | Jan 1, 2023 – Dec 31, 2025 | DS000 | 10 | 0.0004 MG/L |
| Copiah | Northeast Copiah Water Assn, MS0150010 | Lead | Jan 1, 2023 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2025 – Dec 31, 2025 | DS000 | 10 | 0.21 MG/L 90th percentile |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2025 – Dec 31, 2025 | DS000 | 10 | 0.31 MG/L |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2025 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 10 | 0.0005 MG/L 90th percentile |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 10 | 0.0009 MG/L |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2024 – Dec 31, 2024 | DS000 | 10 | 0.242 MG/L 90th percentile |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2024 – Dec 31, 2024 | DS000 | 10 | 0.378 MG/L |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2024 – Dec 31, 2024 | DS000 | 0 | Not recorded |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2024 – Dec 31, 2024 | DS000 | 10 | 0 MG/L 90th percentile |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2024 – Dec 31, 2024 | DS000 | 10 | 0.0006 MG/L |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2024 – Dec 31, 2024 | DS000 | 0 | Not recorded |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2022 – Dec 31, 2024 | DS000 | 10 | 0.443 MG/L 90th percentile |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2022 – Dec 31, 2024 | DS000 | 10 | 0.512 MG/L |
| Copiah | Town of Wesson, MS0150011 | Copper | Jan 1, 2022 – Dec 31, 2024 | DS000 | 0 | Not recorded |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2022 – Dec 31, 2024 | DS000 | 10 | 0.0008 MG/L 90th percentile |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2022 – Dec 31, 2024 | DS000 | 10 | 0.002 MG/L |
| Copiah | Town of Wesson, MS0150011 | Lead | Jan 1, 2022 – Dec 31, 2024 | DS000 | 0 | Not recorded |