County · Missouri
Franklin County, Missouri: drinking water records
This overview covers 20 ZIP codes and 43 community water systems in Franklin 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 |
|---|---|---|---|---|---|
| Washington PWS MO6010838 | 14,068 | 570 | 0 | 1 | 2.6 ppb |
| Circle C MHP MO6048106 | 75 | 60 | 2 | 1 | 0 ppb |
| Union PWS MO6010801 | 12,348 | 360 | 0 | 0 | 2.5 ppb |
| Franklin County Pwsd 3 MO6024213 | 8,250 | 300 | 0 | 0 | 1.9 ppb |
| Sullivan PWS MO6010775 | 7,081 | 420 | 0 | 0 | 1.7 ppb |
| Pacific PWS MO6010620 | 6,000 | 180 | 0 | 0 | 10 ppb |
| St Clair PWS MO6010708 | 4,700 | 420 | 1 | 0 | 2.4 ppb |
| Franklin County Pwsd 1 MO6024211 | 3,500 | 240 | 0 | 0 | 4.1 ppb |
| Wellsgate MS0360068 | 1,447 | 0 | 0 | 3 | 0 ppb |
| Argyle Estates Water Supply MO6036126 | 380 | 0 | 0 | 3 | 2.4 ppb |
| Sylvan Manor Subd MO6036085 | 240 | 0 | 0 | 1 | 1.5 ppb |
| Spring Meadows MHP MO6048249 | 135 | 0 | 0 | 1 | 0 ppb |
| Paradise MHP MO6048206 | 98 | 0 | 0 | 2 | 0.5 ppb |
| Horse Shoe Bend MO6048163 | 70 | 0 | 0 | 1 | 0 ppb |
| Avery Mobile Home Court MO6048068 | 40 | 0 | 0 | 1 | 1.6 ppb |
| New Haven PWS MO6010568 | 2,000 | 0 | 0 | 0 | 0 ppb |
| Gerald PWS MO6010303 | 1,383 | 0 | 0 | 0 | 2.9 ppb |
| Franklin County Pwsd 3 St Albans MO6079516 | 1,300 | 0 | 0 | 0 | 1.9 ppb |
| Franklin County Pwsd 4 MO6024214 | 760 | 0 | 0 | 0 | 2.9 ppb |
| Franklin County Pwsd 3 Lake Serene MO6036075 | 600 | 0 | 0 | 0 | 1.8 ppb |
| Oak Grove Village PWS MO6010590 | 508 | 0 | 0 | 0 | 1.9 ppb |
| Franklin County Water Company INC MO6036009 | 350 | 0 | 0 | 0 | 1.2 ppb |
| Twelve Oaks Water System MS0360069 | 314 | 0 | 0 | 0 | 0.4 ppb |
| Berger PWS MO6010064 | 256 | 0 | 0 | 0 | 0 ppb |
| Village Greens MO6031382 | 250 | 0 | 0 | 0 | 9.8 ppb |
ZIP reports in Franklin 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: 63041, 63061.
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.