County · Louisiana
Richland Parish, Louisiana: drinking water records
This overview covers 4 ZIP codes and 10 community water systems in Richland 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 |
|---|---|---|---|---|---|
| Town of Rayville Water System LA1083006 | 4,842 | 60 | 1 | 29 | 1 ppb |
| Archibald Water System LA1083012 | 4,200 | 120 | 0 | 0 | 1 ppb |
| Town of Delhi Water Supply LA1083002 | 4,071 | 60 | 0 | 0 | 2 ppb |
| River Road Water System LA1083008 | 3,510 | 0 | 0 | 18 | 2.6 ppb |
| Village of Mangham Water System LA1083005 | 927 | 0 | 0 | 1 | 0 ppb |
| Bcc Detention Center Ws LA1083016 | 150 | 0 | 0 | 11 | 0.4 ppb |
| Palmetto Addiction Recovery LA1083017 | 45 | 0 | 0 | 38 | 1 ppb |
| East Richland Ww District LA1083003 | 3,120 | 0 | 0 | 0 | 2.4 ppb |
| Start Water System LA1083007 | 2,514 | 0 | 0 | 0 | 0 ppb |
| Richland Heights Subd Water System LA1083015 | 30 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Richland 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.