Parker City Sewage Plant River Ave Parker, PA 16049 Phone : (724) 399-2971 Business Category Government Offices-City Village & Twp Legislative Bodies Parker City Sewage Plant Washington St Parker, PA 16049 Phone : (724) 399-2971 Business Category Government Offices-City Village & Twp Water & Sewage Companies-Utility Water Supply Government Offices State & Local Legislative Bodies Government Offices & Public Schools