(a) The engineered site grading and soil erosion and sedimentation control plans for a development shall be submitted by the owner to the appropriate county agency.
(b) In addition to the requirements outlined in the engineered site grading plan shall include the following information:
(1) The general stormwater management scheme for the proposed development indicating how stormwater management will be provided and where drainage will outlet.
(2) A description of the off-site outlet and evidence of its adequacy. If no adequate watercourse exists to effectively handle a concentrated flow of water from the proposed development, discharge will be reduced to sheet flow prior to exiting the site, and shall not exceed the allowable outlet rate defined in the engineering design standards. Additional volume controls may be required in such cases and/or acquisition of rights-of-way from downstream property owners receiving the stormwater flow.
(3) Identification of any on-site and/or off-site stormwater management facilities and appropriate easements, granted to the entity that will be responsible for future maintenance.
(4) Any drainage originating outside of the development limits that flows onto or across the development. (In general, drainage from off-site shall not be passed through on-site stormwater BMPs).
(5) Any natural watercourses, the city and county drains that traverse or about the property.
(Ord. No. 203, 10-17-2016)