County · Ohio
Fairfield County, Ohio: drinking water records
This overview covers 14 ZIP codes and 21 community water systems in Fairfield 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 |
|---|---|---|---|---|---|
| Lancaster City PWS OH2301012 | 40,400 | 120 | 0 | 0 | 0.8 ppb |
| Pickerington City PWS OH2301512 | 19,141 | 60 | 0 | 0 | 0.6 ppb |
| Fairfield County Utilities PWS OH2301912 | 15,486 | 60 | 0 | 0 | 0 ppb |
| Lithopolis Village PWS OH2301112 | 1,573 | 0 | 0 | 1 | 3.1 ppb |
| Greenfield TWP Water District OH2301812 | 490 | 60 | 0 | 0 | 0 ppb |
| Rushville Village PWS OH2303103 | 357 | 0 | 0 | 1 | 0 ppb |
| Millersport Village PWS OH2301212 | 3,200 | 0 | 0 | 0 | 0.6 ppb |
| Baltimore Village PWS OH2300112 | 2,995 | 0 | 0 | 0 | 2.1 ppb |
| Canal Pointe Industrial Park PWS OH2346603 | 1,721 | 0 | 0 | 0 | 0 ppb |
| Odrc-Southeastern Correctional Institute OH2301412 | 1,461 | 0 | 0 | 0 | 0.5 ppb |
| Little Walnut Water Treatment Facility OH2303212 | 1,428 | 0 | 0 | 0 | 0 ppb |
| Bremen Village OH2300212 | 1,425 | 0 | 0 | 0 | 0 ppb |
| Pleasantville Village PWS OH2301712 | 960 | 0 | 0 | 0 | 0 ppb |
| Amanda Village PWS OH2300012 | 757 | 0 | 0 | 0 | 1.1 ppb |
| Thurston Village PWS OH2302903 | 604 | 0 | 0 | 0 | 1.5 ppb |
| Carroll Village PWS OH2300312 | 524 | 0 | 0 | 0 | 0 ppb |
| Rustic Ridge MHP OH2302812 | 450 | 0 | 0 | 0 | 0.4 ppb |
| Sugar Grove Village PWS OH2302112 | 426 | 0 | 0 | 0 | 2.9 ppb |
| Country Lane Gardens Hc OH2300712 | 190 | 0 | 0 | 0 | 0 ppb |
| Colony Village MHP OH2300512 | 75 | 0 | 0 | 0 | 0.3 ppb |
| Brookdale Mobile Home Park OH2302012 | 60 | 0 | 0 | 0 | 0.2 ppb |
ZIP reports in Fairfield 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.