

This facility is located off Swatara Creek Road in Londonderry Township.

The Southwest Wastewater Treatment Facility with a capacity of 0.6 million gallons per day was brought on line in 1993. The facility is located off Hersheypark Drive adjacent to the Swatara Creek. The Clearwater Road Wastewater Treatment Facility with a capacity of 5.02 million gallons per day was placed into operation in 1977 and was expanded and upgraded in a project completed in 2005. Today the Authority owns and operates two wastewater treatment facilities, fourteen wastewater pump stations, four meter stations, and more than 141 miles of sanitary sewers. Installation of additional sewers during the 1973 project and ongoing Authority extensions and developer installed sewers has increase the collection system to the current size. The Authority purchased approximately 29 miles of collection facilities within the Township of Derry from the Hershey Sewerage Company in 1973.

The Derry Township Municipal Authority was formed under the provisions of the Pennsylvania Municipal Authorities Act in 1971.
