All excavations for building sewer or service lateral installation shall be guarded with barricades and lights as are reasonably adequate to protect the public from accident and injury. Streets, sidewalks, parkways and other public property disturbed, in the course of work, shall be restored in a manner satisfactory to the director. Standards for installation of side sewer and service laterals shall be those set forth in the Uniform Plumbing Code adopted by the city, the WSDOT and APWA Standard Specifications for Roads, Bridge and Municipal Construction, current edition or such other regulations as the city council may from time-to-time adopt. (Ord. 1706, 1989)