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City of San Mateo Municipal Code.


(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.