Water system
Fairfield County Utilities
EPA ID OH2301912 · Fairfield County · 15,486 people served · owned by a local government
Fairfield County Utilities treats its own water from Local groundwater wells (central Ohio, aquifer undocumented).
The system's record
- Active wells
- 9
- Serves
- 15,486 people · Fairfield County
- EPA ID
- OH2301912
9 active wells, no named surface intakes. Search results returning 'Great Miami Buried Valley Aquifer' actually describe the separate City of Fairfield system near Cincinnati/Butler County, not Fairfield County Utilities (Carroll, Ohio, in central Fairfield County) — kept SDWIS hypothesis of local…
About this area's water
Water quality & impurities
EPA compliance record
Lead at the tap: 90th-percentile result 0 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
Present in 5 ZIP codes
Serves
No ZIP code has Fairfield County Utilities on record as its main water supplier.
Also present in 5 more ZIP codes
- 43147 · Pickerington38% of residents
- 43110 · Columbus and Canal Winchester3% of residents
- 43112 · Bloom Township and Carroll3% of residents
- 43068 · Reynoldsburg0% of residents
- 43130 · Lancaster0% of residents
Population-weighted resident shares; a ZIP code can have more than one system on record. Recomputed from each ZIP's own system list, not from the map's cached footprint.
Buys from · Sells to
Fairfield County Utilities does not buy water from another system on record; it treats its own source water.
No other system is on record buying water from Fairfield County Utilities.
On the map
Show this system's territory on the map — 5 ZIP codes in all.
Sources
U.S. EPA SDWIS and Community Water System Service Area Boundaries (v3, 2026), Ohio EPA primacy data, 2020 census blocks: the system serving most residents, traced through purchases to the treating utility; Ohio EPA 2023 Sewer and Water Rate Survey (Ohio State, May 2025) for household bills; Ohio EPA DEFA loan awards since 2016 for the loans paragraph · EPA SDWIS · EPA service area boundaries · Ohio EPA drinking water · Ohio EPA rate survey
Fairfield County Utilities's own pages: co.fairfield.oh.us