(A) For the purposes of this subchapter and as shown on the plans, rigid pipes and conduits shall include those made of steel, ductile iron, cast iron, concrete and vitrified clay.
(B) Flexible and semi-rigid conduits and pipes shall include those made of PVC, FRP, polyethylene and other materials as determined by the engineer.
(Ord. 2010-3, passed 10-6-2010)