County · Arkansas
Ouachita County, Arkansas: drinking water records
This overview covers 5 ZIP codes and 10 community water systems in Ouachita County. 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 |
|---|---|---|---|---|---|
| Camden Waterworks AR0000404 | 13,275 | 120 | 0 | 0 | 1 ppb |
| Harmony Grove Water Assoc AR0000402 | 2,192 | 0 | 0 | 2 | 7 ppb |
| Hwy 4 24 Water Association AR0000765 | 2,135 | 0 | 0 | 9 | 2 ppb |
| Buena Vista-Ogemaw Water Association AR0000737 | 384 | 0 | 0 | 2 | 2 ppb |
| Bearden Waterworks AR0000401 | 2,511 | 0 | 0 | 0 | 18 ppb |
| Frenchport Water Association AR0000636 | 1,793 | 0 | 0 | 0 | 1 ppb |
| Stephens Waterworks AR0000405 | 1,100 | 0 | 0 | 0 | 2 ppb |
| Wire Road Water System AR0000783 | 830 | 0 | 0 | 0 | 1 ppb |
| Chidester Water Works AR0000403 | 336 | 0 | 0 | 0 | 2 ppb |
| Louann Waterworks AR0000406 | 170 | 0 | 0 | 0 | 1 ppb |
ZIP reports in Ouachita County
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.