No ashes, cinders or refuse shall be used in backfllling any trench or excavation in which service pipes are installed. Each service pipe trench from the water main to the property line shall be filled with sand and compacted by flooding with water. When a service pipe is to be installed in soil which may have a destructive or deleterious effect it must be protected by methods approved by the Commissioner of Water Management.
(Amend Coun. J. 11-8-12, p. 38872, § 342; Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 4)