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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.

Summarized field results

Each row is one analyte over one monitoring period at one facility, with what the agency determined about it.

4,486–4,500 of 24,556 monitoring-period summaries. From monitoring periods beginning October 7, 2024 to October 7, 2026. These dates are applied here by default; they are not a limit on what the agency records. Show 5 years, back to October 7, 2021.

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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 these columns

M&R complied is not a yes-or-no column. The agency records three values: Yes, in compliance, No-Major Violation and No-Minor Violation. Level complied is yes or no.

Both record what the agency determined for one monitoring period. The rows are in the agency’s own order, not ranked by either column.

Summarized field sample results across the systems Mississippi State Department of Health serves, 4,486 to 4,500 of 24,556 monitoring-period summaries shown. Each row summarizes one analyte over one monitoring period at one facility. M and R complied carries three values and is not a yes-or-no column.
County Water system Facility Monitoring period Analyte Summary type M&R complied Level complied
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Oct 1, 2025 – Oct 31, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Sep 1, 2025 – Sep 30, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Aug 1, 2025 – Aug 31, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Jul 1, 2025 – Jul 31, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Jun 1, 2025 – Jun 30, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 May 1, 2025 – May 31, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Apr 1, 2025 – Apr 30, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Mar 1, 2025 – Mar 31, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Feb 1, 2025 – Feb 28, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Jan 1, 2025 – Jan 31, 2025 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Dec 1, 2024 – Dec 31, 2024 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto City of Horn Lake - Twin Lakes, MS0170025 DS000 Nov 1, 2024 – Nov 30, 2024 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto Country Haven Mobile Home Park, MS0170027 DS000 Sep 1, 2026 – Sep 30, 2026 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto Country Haven Mobile Home Park, MS0170027 DS000 Aug 1, 2026 – Aug 31, 2026 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes
DeSoto Country Haven Mobile Home Park, MS0170027 DS000 Jul 1, 2026 – Jul 31, 2026 Chlorine Chlorine/Chloramine MRDL YES in compliance Yes