Ohio
Fairfield County drinking water quality
73 active public water systems serve 103,184 people in Fairfield County. 39 are compliant, 34 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 0 carry a health flag.
Needs attention
Community water systems
21 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Lancaster City PWS |
40,400 | 1 | 1 | |
|
Pickerington City PWS |
19,141 | 1 | 1 | |
|
Fairfield County Utilities PWS |
19,113 | 0 | 0 | |
|
Millersport Village PWS |
3,200 | 1 | 1 | |
|
Baltimore Village PWS |
2,995 | 1 | 1 | |
|
Canal Pointe Industrial Park PWS |
1,721 | 0 | 0 | |
|
Lithopolis Village PWS |
1,573 | 4 | 2 | |
|
Odrc-Southeastern Correctional Institute |
1,461 | 1 | 1 | |
|
Little Walnut Water Treatment Facility |
1,428 | 0 | 0 | |
|
Bremen Village |
1,425 | 3 | 2 | |
|
Pleasantville Village PWS |
960 | 1 | 1 | |
|
Amanda Village PWS |
757 | 2 | 1 | |
|
Thurston Village PWS |
604 | 5 | 1 | |
|
Carroll Village PWS |
524 | 1 | 1 | |
|
Greenfield Twp Water District |
490 | 0 | 0 | |
|
Rustic Ridge MHP |
450 | 1 | 1 | |
|
Sugar Grove Village PWS |
426 | 1 | 1 | |
|
Rushville Village PWS |
357 | 2 | 1 | |
|
Country Lane Gardens HC |
190 | 3 | 2 | |
|
Colony Village MHP |
75 | 1 | 1 | |
|
Brookdale Mobile Home Park |
60 | 1 | 1 |
Non-community systems (52: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (188, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Ohio records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.