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01/09/2017 forth in the 2016 California Building Code, are adopted by reference. Sec. 9.69. SECTION J102.1, APPENDIX J OF THE BUILDING CODE AMENDED: Section J102.1, Appendix J of the Building Code is amended to add the definition of Engineered Grading: J102.1. Definitions. For the purpose of this appendix chapter, the terms, phrases and words listed in this section and their derivatives shall have the indicated meanings. BENCH. A relatively level step excavated into earth material on which fill is to be placed. COMPACTION. The densification of a fill by mechanical means. CUT. See excavation DOWN DRAIN. A device for collecting water from a swale or ditch located on or above a slope, and safely delivering it to an approved drainage facility. ENGINEERED GRADING. An excavation greater than two (2) feet in depth; where cut slope is greater than five (5) feet in height; where fill is to be placed on natural grade steeper than 20% (1:5 ratio); where fill is greater than three (3) feet in height; where fill supports a structure; or which consist of more than 50 cubic yards. EROSION. The wearing away of the ground surface as a result of the movement of wind, water or ice. EXCAVATION. The removal of earth material by artificial means also referred to as a cut. FILL. Deposition of earth materials by artificial means. GRADE. The vertical location of the ground surface. GRADE, EXISTING. The grade prior to grading. GRADE, FINISHED. The grade of the site at the conclusion of all grading efforts. GRADING. An excavation, fill, or combination thereof. KEY. A compacted fill placed in a trench excavated in earth material beneath the toe of a slope. SLOPE. An inclined surface, the inclination of which is expressed as a ratio of horizontal distance to vertical distance. ATTY/ORD.433/BUILDING CODE ADOPTION REV: 12-19-16 RL Page 9 of 16 ORDINANCE NO. 2428 MUFF NO. 305