Water system
Highland County Water Company, Inc.
EPA ID OH3600514 · Highland County · 28,421 people served
Highland County Water Company, Inc. treats its own water from Sand-and-gravel aquifer wells (Ross/Highland Co. well fields; local wells).
The system's record
- Aquifer
- Quaternary sand-and-gravel aquifer (Falls Road, Bainbridge, and Paint Creek well fields)
- Active wells
- 9
- Serves
- 28,421 people · Highland County
- EPA ID
- OH3600514
Nine wells across three well fields (Falls Road and Bainbridge in Ross Co., Paint Creek in eastern Highland Co.) feed a treatment plant near Rainsboro for iron/manganese removal.
About this area's water
Water quality & impurities
EPA compliance record
Lead at the tap: 90th-percentile result 1.7 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
1 violation of any kind logged since 2020, 1 of them paperwork (monitoring, reporting, public notice or consumer report).
Present in 1 ZIP code
Serves
No ZIP code has Highland County Water Company, Inc. on record as its main water supplier.
Also present in 1 more ZIP code
- 45133 · Hillsboro10% 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
Highland County Water Company, Inc. does not buy water from another system on record; it treats its own source water.
No other system is on record buying water from Highland County Water Company, Inc..
On the map
Show this system's territory on the map — 1 ZIP code 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
Highland County Water Company, Inc.'s own pages: highlandcountywater.com