23.72.100 GRADING DESIGN PLAN.
(a) For the efficient use of water, grading of a project site shall be designed to minimize soil erosion, runoff, and water waste. A grading plan or completed grading design survey shall be submitted as part of the landscape documentation package. A comprehensive grading plan prepared by a civil engineer for other local agency permits satisfies this requirement.
(1) The project applicant shall submit a landscape grading plan that indicates finished configurations and elevations of the landscape area including:
(i) Height of graded slopes;
(ii) Drainage patterns;
(iii) Pad elevations;
(iv) Finish grade; and
(v) Stormwater retention improvements, if applicable.
(2) To prevent excessive erosion and runoff, project applicants shall, where physically feasible:
(i) Grade so that all irrigation and normal rainfall remains within property lines and does not drain on to non-permeable hardscapes;
(ii) Avoid disruption of natural drainage patterns and undisturbed soil; and
(iii) Avoid soil compaction in landscape areas.