§ 3.02 PRESSURE PIPE AND FITTING MATERIALS.
   (A)   Ductile iron pipe shall be in accordance with AWWA C151 with mechanical or push-on joints in accordance with AWWA C111. Fittings shall be in accordance with AWWA C110. The minimum pipe thickness shall be Class 52. Pipe and fittings used for water mains shall have a cement lining in accordance with AWWA C104 while sewage force mains and fittings shall have a calcium aluminate, polyethylene, ceramic epoxy or coal tar epoxy lining specifically designed for sanitary sewer applications. The outside coating of all ductile iron pipe shall have a bituminous coating in accordance with AWWA C111.
   (B)   The contractor shall not telescope small pipe inside larger pipe for shipment or storage. Pipe with damage to cement mortar lining will be rejected and field patching will not be permitted.
   (C)   Eight inch ductile iron pipe and accessories shall be the minimum size that can be installed. A larger size may be required as specified by the utility manager or utility engineer, or as recommended by AWWA.