COUNTY WATER-SYSTEM LEDGER
Fairfield, Ohio
EPA’s September 2026 export lists 5 active community water systems serving Fairfield, Ohio, with 4 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Fairfield, Ohio
EPA associates 5 covered systems with Fairfield, Ohio; their reported population-served values total 81,222 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Lancaster City PWSOH2301012 | 40,400 | Ground water | Other current violation flag |
| Pickerington City PWSOH2301512 | 19,141 | Ground water | Other current violation flag |
| Fairfield County Utilities PWSOH2301912 | 15,486 | Ground water | No current violation flagged |
| Millersport Village PWSOH2301212 | 3,200 | Ground water | Other current violation flag |
| Baltimore Village PWSOH2300112 | 2,995 | Ground water | Other current violation flag |
02 / SOURCE MIX
Primary water sources for Fairfield, Ohio
EPA classifies 5 systems serving Fairfield, Ohio across 1 primary-source categories; Ground water is the largest category with 5 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.