County · Louisiana
De Soto Parish, Louisiana: drinking water records
This overview covers 8 ZIP codes and 9 community water systems in De Soto Parish. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| City of Mansfield Water System LA1031009 | 7,512 | 120 | 1 | 23 | 1 ppb |
| Desoto Parish Water Works District 1 LA1031030 | 7,173 | 120 | 2 | 8 | 2 ppb |
| Keatchie Water System LA1031007 | 4,446 | 420 | 0 | 21 | 1 ppb |
| North Desoto Water System LA1031011 | 7,608 | 180 | 0 | 0 | 1 ppb |
| Town of Logansport Water System LA1031008 | 2,448 | 0 | 0 | 21 | 0.4 ppb |
| East Desoto Water System LA1031005 | 1,455 | 0 | 0 | 27 | 0 ppb |
| South Desoto Water System LA1031029 | 963 | 0 | 0 | 40 | 0 ppb |
| Village of South Mansfield Water System LA1031014 | 933 | 0 | 0 | 17 | 0 ppb |
| Rambin-Wallace Water System LA1031012 | 1,161 | 0 | 0 | 0 | 1.6 ppb |
ZIP reports in De Soto Parish
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.