All service pipes must be laid not less than seven feet below the ground surface. In all cases, they must be so protected as to prevent rupture by freezing; provided, that the Public Works Director may, upon due application, permit a service pipe to be laid at a lesser depth than above specified.
(Prior Code, § 13.28.040) (Ord. 143, passed - -1926: Ord. 586, passed - -1993)