Nitro Waste Treatment Plant 2nd Ave & 20th St Nitro, WV 25143 Phone : (304) 755-7707 Business Category Government Offices-City Village & Twp Legislative Bodies Nitro City Of--sanitary Board, Waste Treatment Plant Nitro, WV 25143 Phone : (304) 755-7707 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools