The following standards shall apply to excavation, filling and grading operations:
(a) No excavation, grading or filling shall be permitted within twenty feet of an existing or approved street property line except to conform to approximate street grade.
(b) Finished slopes of an excavation shall not exceed 1:1 1/2 (vertical to horizontal) in undisturbed earth, 1:2 in earth fill, and 4:1 in rock cut, whether or not the ground surface shall be below water.
(c) Vertical slopes shall be permitted if adequate retaining walls and protective fences are provided when needed.
(d) Truck and equipment accessways to the site of the operation shall be located so as to minimize danger to traffic and nuisance to surrounding properties. Such access shall be kept either wet or oiled or treated with chemical dust deterrents, or paved, to the extent necessary to prevent any dust nuisance to surrounding properties. All such accessways shall be clearly marked with signs and shall be posted approximately 200 feet distance from such accessways or other traveled areas. Such signs shall read "Caution, Trucks Entering" and be of size, type, coloring, lettering and format used by the Highway Department of the City or State.
(e) Excavations shall not interfere with public or private utility systems and shall not create or aggravate any condition detrimental to the public health and safety.
(f) Slopes greater than 1:2 shall receive special ground cover treatment and the upper bank shall be protected by fences, railings or other means.
(g) All work, including compaction of fill, shall be conducted in accordance with accepted and approved engineering standards. (Ord. 1990-44. Passed 8-8-90.)