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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.

581–600 of 5,298 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, 581 to 600 of 5,298 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
Calhoun Cross-Roads Water Association, MS0070005 Lead Jan 1, 2023 – Dec 31, 2023 DS000 10 0.0123 MG/L
Calhoun Cross-Roads Water Association, MS0070005 Lead Jan 1, 2023 – Dec 31, 2023 DS000 1 Not recorded
Calhoun Town of Derma, MS0070006 Copper Jan 1, 2023 – Dec 31, 2025 DS000 10 0.273 MG/L 90th percentile
Calhoun Town of Derma, MS0070006 Copper Jan 1, 2023 – Dec 31, 2025 DS000 10 0.29 MG/L
Calhoun Town of Derma, MS0070006 Copper Jan 1, 2023 – Dec 31, 2025 DS000 0 Not recorded
Calhoun Town of Derma, MS0070006 Lead Jan 1, 2023 – Dec 31, 2025 DS000 10 0.0007 MG/L 90th percentile
Calhoun Town of Derma, MS0070006 Lead Jan 1, 2023 – Dec 31, 2025 DS000 10 0.001 MG/L
Calhoun Town of Derma, MS0070006 Lead Jan 1, 2023 – Dec 31, 2025 DS000 0 Not recorded
Calhoun Duncan Hill Water Supply, MS0070007 Copper Jan 1, 2024 – Dec 31, 2026 DS000 5 0.509 MG/L 90th percentile
Calhoun Duncan Hill Water Supply, MS0070007 Copper Jan 1, 2024 – Dec 31, 2026 DS000 5 0.518 MG/L
Calhoun Duncan Hill Water Supply, MS0070007 Copper Jan 1, 2024 – Dec 31, 2026 DS000 0 Not recorded
Calhoun Duncan Hill Water Supply, MS0070007 Lead Jan 1, 2024 – Dec 31, 2026 DS000 5 0.0009 MG/L 90th percentile
Calhoun Duncan Hill Water Supply, MS0070007 Lead Jan 1, 2024 – Dec 31, 2026 DS000 5 0.0014 MG/L
Calhoun Duncan Hill Water Supply, MS0070007 Lead Jan 1, 2024 – Dec 31, 2026 DS000 0 Not recorded
Calhoun Duncan Hill Water Supply, MS0070007 Copper Jan 1, 2023 – Dec 31, 2025 DS000 5 0.0661 MG/L 90th percentile
Calhoun Duncan Hill Water Supply, MS0070007 Copper Jan 1, 2023 – Dec 31, 2025 DS000 5 0.0712 MG/L
Calhoun Duncan Hill Water Supply, MS0070007 Copper Jan 1, 2023 – Dec 31, 2025 DS000 0 Not recorded
Calhoun Duncan Hill Water Supply, MS0070007 Lead Jan 1, 2023 – Dec 31, 2025 DS000 5 0 MG/L 90th percentile
Calhoun Duncan Hill Water Supply, MS0070007 Lead Jan 1, 2023 – Dec 31, 2025 DS000 5 0 MG/L
Calhoun Duncan Hill Water Supply, MS0070007 Lead Jan 1, 2023 – Dec 31, 2025 DS000 0 Not recorded