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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.

1,381–1,400 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.

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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, 1,381 to 1,400 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
DeSoto Eudora Utilities Association, MS0170006 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.309 MG/L 90th percentile
DeSoto Eudora Utilities Association, MS0170006 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.336 MG/L
DeSoto Eudora Utilities Association, MS0170006 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
DeSoto Eudora Utilities Association, MS0170006 Lead Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0008 MG/L 90th percentile
DeSoto Eudora Utilities Association, MS0170006 Lead Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0009 MG/L
DeSoto Eudora Utilities Association, MS0170006 Lead Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
DeSoto City of Hernando, MS0170009 Copper Jan 1, 2022 – Dec 31, 2024 DS000 30 0.0183 MG/L 90th percentile
DeSoto City of Hernando, MS0170009 Copper Jan 1, 2022 – Dec 31, 2024 DS000 30 0.0301 MG/L
DeSoto City of Hernando, MS0170009 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
DeSoto City of Hernando, MS0170009 Lead Jan 1, 2022 – Dec 31, 2024 DS000 30 0.0012 MG/L 90th percentile
DeSoto City of Hernando, MS0170009 Lead Jan 1, 2022 – Dec 31, 2024 DS000 30 0.002 MG/L
DeSoto City of Hernando, MS0170009 Lead Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
DeSoto Horn Lake Water Association, MS0170010 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0204 MG/L 90th percentile
DeSoto Horn Lake Water Association, MS0170010 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.0295 MG/L
DeSoto Horn Lake Water Association, MS0170010 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
DeSoto Horn Lake Water Association, MS0170010 Lead Jan 1, 2022 – Dec 31, 2024 DS000 20 0 MG/L 90th percentile
DeSoto Horn Lake Water Association, MS0170010 Lead Jan 1, 2022 – Dec 31, 2024 DS000 20 0 MG/L
DeSoto Horn Lake Water Association, MS0170010 Lead Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
DeSoto Lewisburg Water Association, MS0170011 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.134 MG/L 90th percentile
DeSoto Lewisburg Water Association, MS0170011 Copper Jan 1, 2022 – Dec 31, 2024 DS000 20 0.146 MG/L