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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.

5,881–5,900 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, 5,881 to 5,900 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
Yalobusha Ajinomoto Foods North America, Inc, MS0810036 Copper Jan 1, 2022 – Dec 31, 2024 DS000 5 0.162 MG/L 90th percentile
Yalobusha Ajinomoto Foods North America, Inc, MS0810036 Copper Jan 1, 2022 – Dec 31, 2024 DS000 5 0.196 MG/L
Yalobusha Ajinomoto Foods North America, Inc, MS0810036 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Yalobusha Ajinomoto Foods North America, Inc, MS0810036 Lead Jan 1, 2022 – Dec 31, 2024 DS000 5 0.0013 MG/L 90th percentile
Yalobusha Ajinomoto Foods North America, Inc, MS0810036 Lead Jan 1, 2022 – Dec 31, 2024 DS000 5 0.0013 MG/L
Yalobusha Ajinomoto Foods North America, Inc, MS0810036 Lead Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Yazoo Casey Jones Water Assn., MS0820003 Copper Jan 1, 2023 – Dec 31, 2025 DS000 10 0.2 MG/L 90th percentile
Yazoo Casey Jones Water Assn., MS0820003 Copper Jan 1, 2023 – Dec 31, 2025 DS000 10 0.2 MG/L
Yazoo Casey Jones Water Assn., MS0820003 Copper Jan 1, 2023 – Dec 31, 2025 DS000 0 Not recorded
Yazoo Casey Jones Water Assn., MS0820003 Lead Jan 1, 2023 – Dec 31, 2025 DS000 10 0.0019 MG/L 90th percentile
Yazoo Casey Jones Water Assn., MS0820003 Lead Jan 1, 2023 – Dec 31, 2025 DS000 10 0.0024 MG/L
Yazoo Casey Jones Water Assn., MS0820003 Lead Jan 1, 2023 – Dec 31, 2025 DS000 0 Not recorded
Yazoo Midway W/A #1, MS0820010 Copper Jan 1, 2022 – Dec 31, 2024 DS000 10 0.0152 MG/L 90th percentile
Yazoo Midway W/A #1, MS0820010 Copper Jan 1, 2022 – Dec 31, 2024 DS000 10 0.0473 MG/L
Yazoo Midway W/A #1, MS0820010 Copper Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Yazoo Midway W/A #1, MS0820010 Lead Jan 1, 2022 – Dec 31, 2024 DS000 10 0.0019 MG/L 90th percentile
Yazoo Midway W/A #1, MS0820010 Lead Jan 1, 2022 – Dec 31, 2024 DS000 10 0.0029 MG/L
Yazoo Midway W/A #1, MS0820010 Lead Jan 1, 2022 – Dec 31, 2024 DS000 0 Not recorded
Yazoo City of Yazoo City, MS0820014 Copper Jan 1, 2023 – Dec 31, 2025 DS000 30 0.0818 MG/L 90th percentile
Yazoo City of Yazoo City, MS0820014 Copper Jan 1, 2023 – Dec 31, 2025 DS000 30 0.0951 MG/L