Penns Preserve Treatment Plant

Active Spray Fields and Irrigation System

Penns Preserve Spray Irrigation System is located on the Okehocking Preserve in Willistown Township, Chester County, PA at the intersection of West Chester Pike (Route 3) and Delchester Road. The facility serves two (2) subdivisions – Penns Preserve and Willistown Chase. Effluent is disposed by spray irrigation. The plant was placed on-line in early 1999, and effluent was first applied to the spray fields in June 1999. Yerkes Associates, Inc has been operating the system since 1999.