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.
61–80 of 5,298 monitoring-period summaries. From monitoring periods beginning September 26, 2021 to September 26, 2026.
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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 |
|---|---|---|---|---|---|---|
| Adams | Oakland Water Works, MS0010007 | Copper | Jan 1, 2023 – Dec 31, 2025 | DS000 | 10 | 0.0417 MG/L 90th percentile |
| Adams | Oakland Water Works, MS0010007 | Copper | Jan 1, 2023 – Dec 31, 2025 | DS000 | 10 | 0.0623 MG/L |
| Adams | Oakland Water Works, MS0010007 | Copper | Jan 1, 2023 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Adams | Oakland Water Works, MS0010007 | Lead | Jan 1, 2023 – Dec 31, 2025 | DS000 | 10 | 0.0031 MG/L 90th percentile |
| Adams | Oakland Water Works, MS0010007 | Lead | Jan 1, 2023 – Dec 31, 2025 | DS000 | 10 | 0.0031 MG/L |
| Adams | Oakland Water Works, MS0010007 | Lead | Jan 1, 2023 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Adams | Adams Co W/A #2-South, MS0010009 | Copper | Jan 1, 2022 – Dec 31, 2024 | DS000 | 20 | 0.246 MG/L 90th percentile |
| Adams | Adams Co W/A #2-South, MS0010009 | Copper | Jan 1, 2022 – Dec 31, 2024 | DS000 | 20 | 0.315 MG/L |
| Adams | Adams Co W/A #2-South, MS0010009 | Copper | Jan 1, 2022 – Dec 31, 2024 | DS000 | 0 | Not recorded |
| Adams | Adams Co W/A #2-South, MS0010009 | Lead | Jan 1, 2022 – Dec 31, 2024 | DS000 | 20 | 0.0013 MG/L 90th percentile |
| Adams | Adams Co W/A #2-South, MS0010009 | Lead | Jan 1, 2022 – Dec 31, 2024 | DS000 | 20 | 0.0015 MG/L |
| Adams | Adams Co W/A #2-South, MS0010009 | Lead | Jan 1, 2022 – Dec 31, 2024 | DS000 | 0 | Not recorded |
| Adams | Bryandale W/A, MS0010010 | Copper | Jan 1, 2022 – Dec 31, 2022 | DS000 | 5 | 0.076 MG/L 90th percentile |
| Adams | Bryandale W/A, MS0010010 | Copper | Jan 1, 2022 – Dec 31, 2022 | DS000 | 5 | 0.0827 MG/L |
| Adams | Bryandale W/A, MS0010010 | Copper | Jan 1, 2022 – Dec 31, 2022 | DS000 | 0 | Not recorded |
| Adams | Bryandale W/A, MS0010010 | Lead | Jan 1, 2022 – Dec 31, 2022 | DS000 | 5 | 0.0017 MG/L 90th percentile |
| Adams | Bryandale W/A, MS0010010 | Lead | Jan 1, 2022 – Dec 31, 2022 | DS000 | 5 | 0.0019 MG/L |
| Adams | Bryandale W/A, MS0010010 | Lead | Jan 1, 2022 – Dec 31, 2022 | DS000 | 0 | Not recorded |
| Adams | Adams Co W/A #4-Kaiser Lake, MS0010015 | Copper | Jan 1, 2022 – Dec 31, 2024 | DS000 | 20 | 0.221 MG/L 90th percentile |
| Adams | Adams Co W/A #4-Kaiser Lake, MS0010015 | Copper | Jan 1, 2022 – Dec 31, 2024 | DS000 | 20 | 0.311 MG/L |