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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.

3,881–3,900 of 5,922 monitoring-period summaries. From monitoring periods beginning September 27, 2021 to September 27, 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.

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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.

Lead and copper sample summaries across the systems Mississippi State Department of Health serves, 3,881 to 3,900 of 5,922 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
Marshall Galena School, MS0470084 Lead Jul 1, 2022 – Dec 31, 2022 DS000 10 0.0005 MG/L
Marshall Galena School, MS0470084 Lead Jul 1, 2022 – Dec 31, 2022 DS000 0 Not recorded
Marshall Galena School, MS0470084 Copper Jan 1, 2022 – Jun 30, 2022 DS000 10 0.352 MG/L 90th percentile
Marshall Galena School, MS0470084 Copper Jan 1, 2022 – Jun 30, 2022 DS000 10 0.358 MG/L
Marshall Galena School, MS0470084 Copper Jan 1, 2022 – Jun 30, 2022 DS000 0 Not recorded
Marshall Galena School, MS0470084 Lead Jan 1, 2022 – Jun 30, 2022 DS000 10 0.0007 MG/L 90th percentile
Marshall Galena School, MS0470084 Lead Jan 1, 2022 – Jun 30, 2022 DS000 10 0.0007 MG/L
Marshall Galena School, MS0470084 Lead Jan 1, 2022 – Jun 30, 2022 DS000 0 Not recorded
Marshall H W Byers High School, MS0470091 Copper Jan 1, 2024 – Dec 31, 2026 DS000 9 0.0342 MG/L 90th percentile
Marshall H W Byers High School, MS0470091 Copper Jan 1, 2024 – Dec 31, 2026 DS000 9 0.0345 MG/L
Marshall H W Byers High School, MS0470091 Copper Jan 1, 2024 – Dec 31, 2026 DS000 0 Not recorded
Marshall H W Byers High School, MS0470091 Lead Jan 1, 2024 – Dec 31, 2026 DS000 9 0 MG/L 90th percentile
Marshall H W Byers High School, MS0470091 Lead Jan 1, 2024 – Dec 31, 2026 DS000 9 0 MG/L
Marshall H W Byers High School, MS0470091 Lead Jan 1, 2024 – Dec 31, 2026 DS000 0 Not recorded
Marshall Marshall Co Water Assn, MS0470105 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.228 MG/L 90th percentile
Marshall Marshall Co Water Assn, MS0470105 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.249 MG/L
Marshall Marshall Co Water Assn, MS0470105 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Marshall Marshall Co Water Assn, MS0470105 Lead Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0007 MG/L 90th percentile
Marshall Marshall Co Water Assn, MS0470105 Lead Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0015 MG/L
Marshall Marshall Co Water Assn, MS0470105 Lead Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded