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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.

1,941–1,960 of 5,736 monitoring-period summaries. From monitoring periods beginning September 26, 2021 to September 26, 2026.

Choose a date range

This page can show a range of up to 5 years at a time. That is a limit of this service, not of what the agency records.

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.

Lead and copper sample summaries across the systems Mississippi State Department of Health serves, 1,941 to 1,960 of 5,736 monitoring-period summaries shown. Each row is one analyte over one monitoring period for one system, and the Type column says which kind of summary it is — only type 90 is a ninetieth percentile. The rows are in the agency’s own order and are not ranked by value.
County Water system Analyte Monitoring period Facility Samples Measure
Harrison Naval Construction Battal CTR, MS0240060 Copper Jan 1, 2024 – Dec 31, 2026 DS000 0 Not recorded
Harrison Naval Construction Battal CTR, MS0240060 Lead Jan 1, 2024 – Dec 31, 2026 DS000 8 0.0019 MG/L 90th percentile
Harrison Naval Construction Battal CTR, MS0240060 Lead Jan 1, 2024 – Dec 31, 2026 DS000 8 0.0026 MG/L
Harrison Naval Construction Battal CTR, MS0240060 Lead Jan 1, 2024 – Dec 31, 2026 DS000 0 Not recorded
Harrison Naval Construction Battal CTR, MS0240060 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0981 MG/L 90th percentile
Harrison Naval Construction Battal CTR, MS0240060 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.111 MG/L
Harrison Naval Construction Battal CTR, MS0240060 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Harrison Naval Construction Battal CTR, MS0240060 Lead Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0015 MG/L 90th percentile
Harrison Naval Construction Battal CTR, MS0240060 Lead Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0033 MG/L
Harrison Naval Construction Battal CTR, MS0240060 Lead Jan 1, 2022 – Dec 31, 2024 DS000 1 Not recorded
Harrison Pass Christian Isles, MS0240066 Copper Jan 1, 2022 – Dec 31, 2024 DS000 5 0.23 MG/L 90th percentile
Harrison Pass Christian Isles, MS0240066 Copper Jan 1, 2022 – Dec 31, 2024 DS000 5 0.243 MG/L
Harrison Pass Christian Isles, MS0240066 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Harrison Pass Christian Isles, MS0240066 Lead Jan 1, 2022 – Dec 31, 2024 DS000 5 0.004 MG/L 90th percentile
Harrison Pass Christian Isles, MS0240066 Lead Jan 1, 2022 – Dec 31, 2024 DS000 5 0.006 MG/L
Harrison Pass Christian Isles, MS0240066 Lead Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Harrison City of Biloxi-North, MS0240084 Copper Jan 1, 2022 – Dec 31, 2024 DS000 30 0.0939 MG/L 90th percentile
Harrison City of Biloxi-North, MS0240084 Copper Jan 1, 2022 – Dec 31, 2024 DS000 30 0.106 MG/L
Harrison City of Biloxi-North, MS0240084 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Harrison City of Biloxi-North, MS0240084 Lead Jan 1, 2022 – Dec 31, 2024 DS000 30 0.0011 MG/L 90th percentile