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No land-disturbing activity subject to the control of this chapter shall be undertaken except in accordance with the following mandatory standards:

A. Protection of Property. Persons and entities conducting land-disturbing activities shall take all reasonable measures to protect all public and private property from damage caused by such activities.

B. Wetland Buffer Zone. No land-disturbing activity shall be permitted in an approved wetland buffer zone, except as otherwise allowed by applicable laws and permits.

C. Graded Slopes and Fills. The angle for graded slopes and fills shall be no greater than the angle, which can be retained by vegetative cover or other adequate erosion control devices or structures.

D. Ground Cover. No land-disturbing activity shall be undertaken until installation of sufficient erosion and sediment control devices to retain the sediment generated by the activity within the boundaries of the tract during construction upon and development of said tract. Plantings or a permanent ground cover shall be provided immediately after completion of grading to sufficiently restrain erosion.

E. Use of Vegetative Measures. Vegetation measures using native plants shall be used for erosion and sediment control wherever feasible, rather than structural measures such as pipes, structures, or other devices.

F. Environmentally Sensitive Areas. Construction within environmentally sensitive areas shall be in compliance with Chapter 15.18 SPMC and shall be subject to the review of the planning director. [Ord. 378 § 2 (Exh. 1), 1999.]