Newcastle Water Treatment Plnt Nw Of City Newcastle, OK 73065 Phone : (405) 392-3630 Business Category Regulation & Admin Of Communications Electric Gas & Other Utilities Newcastle City Of--water Treatment Plant Newcastle, OK 73065 Phone : (405) 392-3630 Business Category Government Offices-City Village & Twp Plumbing Heating Equipment & Supplies Business Services Water Filters & Purification Equipment Water Softening & Conditioning Equipment Water Treatment Service General Business Services Government Offices State & Local Government Offices & Public Schools