This article establishes standards for the preparation of sites and construction activities to protect against injury to persons and/or property arising from unwarranted or unsafe grading, drainage works, or other aspects of site development. Thus, the city council adopts this article to:
(a) Establish standards and procedures for grading and excavation.
(b) Ensure that projects approved under this article will be free from harmful effects of runoff, including inundation and erosion, and that neighboring and downstream property will be protected from drainage problems resulting from new development. (Ord. No. 1353, § 2 (part).)