County · Missouri
St. Francois County, Missouri: drinking water records
This overview covers 8 ZIP codes and 22 community water systems in St. Francois County. It also stands in for 2 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 |
|---|---|---|---|---|---|
| Farmington PWS MO4010270 | 18,217 | 840 | 2 | 2 | 4.8 ppb |
| Bonne Terre PWS MO4010087 | 3,537 | 120 | 0 | 1 | 12.9 ppb |
| Farmington Correctional Center MO4069041 | 3,500 | 120 | 0 | 3 | 0 ppb |
| Park Hills PWS MO4010279 | 8,587 | 60 | 0 | 0 | 8.6 ppb |
| Desloge PWS MO4011441 | 5,034 | 120 | 0 | 0 | 3.7 ppb |
| Bonne Terre Prison MO4061410 | 3,500 | 60 | 0 | 0 | 8.1 ppb |
| Leadwood PWS MO4010456 | 1,200 | 0 | 0 | 24 | 1.1 ppb |
| Oak Hills Ranch Water TX0940085 | 624 | 0 | 0 | 1 | 7.6 ppb |
| Pilot Knob Rural WD 1 Doe Run Area MO4021451 | 507 | 0 | 0 | 1 | 1.4 ppb |
| Clubb Villa Senior Living MO4061660 | 110 | 0 | 0 | 26 | 0 ppb |
| New Hope Residential Care INC MO4071423 | 25 | 0 | 0 | 3 | 3.8 ppb |
| Terre Du Lac MO4036059 | 3,200 | 0 | 0 | 0 | 3.9 ppb |
| Bismarck PWS MO4010073 | 1,475 | 0 | 0 | 0 | 1.9 ppb |
| St Francois County Pwsd 2 MO4024539 | 850 | 0 | 0 | 0 | 1.5 ppb |
| Hunters Ridge Subd MO4031206 | 441 | 0 | 0 | 0 | 0.5 ppb |
| Eagle Estates MO4031203 | 366 | 0 | 0 | 0 | 0 ppb |
| Walnut Grove MHP MO4041308 | 210 | 0 | 0 | 0 | 0 ppb |
| St Francois County Pwsd 1 MO4024538 | 140 | 0 | 0 | 0 | 0 ppb |
| Farmington Assisted Living Center LLC MO4069065 | 75 | 0 | 0 | 0 | 7.7 ppb |
| Big River Hills LLC MO4036173 | 48 | 0 | 0 | 0 | 0 ppb |
| Sunshine Apartments MO4211659 | 30 | 0 | 0 | 0 | 0 ppb |
| Lake Hanna Assn MO4242474 | 120 | 0 | 0 | 0 | not reported |
ZIP reports in St. Francois County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 63036, 63087.
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.