The plant's service population includes Edinboro University of Pennsylvania which encompasses half of the service population for eight months of each year. In 1988, the Edinboro plant was upgraded to a class D-1 Schrieber design biological treatment plant. The designing engineer for the upgrade was Art Kuholski of Lake Engineering. The treatment at the plant begins with an automatic bar screen followed by a Schreiber designed aerated grit and grease removal system. Secondary treatment consists of two model GR Schreiber combine counter current aeration and final clarifier units.
Disinfection utilizes chlorination through a serpentine tank.
The effluent is then aerated by using a cascade which causes turbulence resulting in the water being exposed to the air. The solids are dried and then disposed of in a landfill. The sanitary wastewater is collected by eight lift stations connected by approximately 18 miles of gravity line. Force mains account for a portion of the collection system, including one of three inflows to the treatment plant. The plant staff consists of five employees.