Specifications include, but are not limited to: The seasonal requirement of Ductile Iron and Polyethylene Pipe to be used for general work and State Aid work by the Town of Spencer in Fiscal 2020, July 1, 2019 through June 30, 2020 with an option to renew for one additional fiscal year (July 1, 2020 through June 30, 2021). High-Density Polyethylene (HDPE) Drainage Pipe shall be in accordance with AASHTO M294, type S or SP as applicable. Pipe shall have a smooth interior and shall have a nominal inside diameter of 12, 15, 18, 24, 30, 36, 42, or 48 inches. Ductile Iron Pipe shall conform to the requirements of ANSI A21.50 (AWWA C150) American Standard for Ductile Iron Pipe Centrifugally cast in metal molds or sand-lined molds for water or other liquids and shall be CLASS 52.