§ 24.15.090. Clearing and grading.  


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  • Clearing and grading within landslide, marine bluff, and erosion hazard areas shall be limited to the area approved for development and shall not be allowed during the wet season (October 1 through May 1) unless the approval authority determines that adequate provisions for wet season erosion have been identified in the geological assessment. All such erosion control measures shall be implemented as a condition of wet-season clearing and grading. The approval authority may require monitoring to ensure that the erosion control is functioning properly. The county may further restrict grading between May 1 and October 1 and also require wet season erosion control provisions if the site is particularly susceptible to erosion and sedimentation that could create unstable conditions or jeopardize a wetland or important habitat. Also see Chapter 14.20 TCC regarding grading requirements and the Drainage Design and Erosion Control Manual for Thurston County, as amended (Chapter 15.05 TCC).

(Ord. No. 14773, § 3(Att. B), 7-24-2012)