Winsted Sewer Treatment Plant 470 N Main St Winsted, CT 06098 Phone : (860) 379-4905 Business Category Government Offices-City Village & Twp Legislative Bodies Winchester Town Of--street & Water Department, Sewer Treatment Plant N Main Winsted, CT 06098 Phone : (860) 379-4905 Business Category Government Offices-City Village & Twp Water Supply Government Offices State & Local Government Offices & Public Schools