Earnhart Hill Regional Water & Sewer District is a political subdivision of the state of Ohio organized under Chapter 6119 of the Ohio Revised Code. The District serves safe drinking water to more than 4300 customer connections within its service area, which includes portions of Pickaway County, and Fairfield County, Ohio.

The District's water system currently consists of 219 miles of water mains, one water-treatment facility, 4 booster stations, 3 pressure-reducing stations, 2 solenoid stations and 10 water-storage facilities. The water-treatment plant has a capacity of 2,000,000 gallons per day.

The District's wastewater system consists of 15 miles of sewer mains and three wastewater treatment plants, each with a capacity of 150,000 gallons per day.

Earnhart Hill is an equal opportunity service provider.