[Amended 2-26-2004, Ordinance 2004-3 § 1]
Water mains shall be at least ductile iron class 51, tested to 525 P.S.T. or better if an engineer deems it necessary. Plastic may be used provided the material meets a four to one pressure requirement, commonly referred to as A.W.W.A. C-900 class 150 or better if an engineer deems it necessary. All water main fittings shall be cast or ductile iron mechanical joint tape.