Sanitary Engineering is responsible for providing water and sewer service to approximately 40,000 residents of Franklin County. We operate four (4) sewage treatment plants, which are located in remote areas throughout the county. In addition, the department maintains nine (9) sewer systems, whose discharge eventually is processed under contract by the City of Columbus.

Two major areas of responsibility for the department are the Rickenbacker Port Authority and the New Rome/Lincoln Village areas in Prairie Township. The department also can provide excellent historical data on all county water and sewer improvements completed since 1915.