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.
201–220 of 612 monitoring-period summaries. From monitoring periods beginning September 26, 2024 to September 26, 2026. These dates are applied here by default; they are not a limit on what the agency records. Show 5 years, back to September 26, 2021.
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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 |
|---|---|---|---|---|---|---|
| Greene | S E Greene Water Authority, MS0210012 | Copper | Jan 1, 2025 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Greene | S E Greene Water Authority, MS0210012 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 10 | 0 MG/L 90th percentile |
| Greene | S E Greene Water Authority, MS0210012 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 10 | 0.0014 MG/L |
| Greene | S E Greene Water Authority, MS0210012 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Grenada | G T & Y Water District Inc, MS0220002 | Copper | Jan 1, 2025 – Dec 31, 2025 | DS000 | 20 | 0.564 MG/L 90th percentile |
| Grenada | G T & Y Water District Inc, MS0220002 | Copper | Jan 1, 2025 – Dec 31, 2025 | DS000 | 20 | 0.711 MG/L |
| Grenada | G T & Y Water District Inc, MS0220002 | Copper | Jan 1, 2025 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Grenada | G T & Y Water District Inc, MS0220002 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 20 | 0.0009 MG/L 90th percentile |
| Grenada | G T & Y Water District Inc, MS0220002 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 20 | 0.0011 MG/L |
| Grenada | G T & Y Water District Inc, MS0220002 | Lead | Jan 1, 2025 – Dec 31, 2025 | DS000 | 0 | Not recorded |
| Harrison | Naval Construction Battal CTR, MS0240060 | Copper | Jan 1, 2026 – Dec 31, 2028 | DS000 | 20 | 0.221 MG/L 90th percentile |
| Harrison | Naval Construction Battal CTR, MS0240060 | Copper | Jan 1, 2026 – Dec 31, 2028 | DS000 | 20 | 0.222 MG/L |
| Harrison | Naval Construction Battal CTR, MS0240060 | Copper | Jan 1, 2026 – Dec 31, 2028 | DS000 | 0 | Not recorded |
| Harrison | Naval Construction Battal CTR, MS0240060 | Lead | Jan 1, 2026 – Dec 31, 2028 | DS000 | 20 | 0.002 MG/L 90th percentile |
| Harrison | Naval Construction Battal CTR, MS0240060 | Lead | Jan 1, 2026 – Dec 31, 2028 | DS000 | 20 | 0.0052 MG/L |
| Harrison | Naval Construction Battal CTR, MS0240060 | Lead | Jan 1, 2026 – Dec 31, 2028 | DS000 | 0 | Not recorded |
| Harrison | HCUA-East, MS0240272 | Copper | Jan 1, 2026 – Jun 30, 2026 | DS000 | 5 | 0.0011 MG/L 90th percentile |
| Harrison | HCUA-East, MS0240272 | Copper | Jan 1, 2026 – Jun 30, 2026 | DS000 | 5 | 0.0011 MG/L |
| Harrison | HCUA-East, MS0240272 | Copper | Jan 1, 2026 – Jun 30, 2026 | DS000 | 0 | Not recorded |
| Harrison | HCUA-East, MS0240272 | Lead | Jan 1, 2026 – Jun 30, 2026 | DS000 | 5 | 0 MG/L 90th percentile |