Chapter 10 Erosion and Sedimentary control

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§ 10-10 HAWAII COUNTY CODE (C) Location of any buildings, structures, or designated historic and archaeological sites, on the property where the work is to be performed and location of any building or structure on land of adjacent property which is within fifteen feet of the property to be graded when the grading may affect the buildings, structures, or designated historic and archaeological sites; (D) Contours showing the topography of the existing ground and extending five feet into adjacent property when required by the director of public works. The scale and contour are to be appropriate to the work in question; (E) Elevations, dimensions, location, extent and the slopes of all proposed grading shown by contours and other means; (F) The area in square feet of the land to be graded and the quantities of excavation and fill involved. Show separately quantities for excavation within and outside of building lines; and (G) Any additional plans, drawings, or calculations required by the director of public works. (2) For grading of areas of more than fifteen thousand square feet, a contour map prepared by an engineer or land surveyor and approved by the director of public works and showing the contours and elevations of the land before and after the completion of the proposed grading. This map shall include the location of existing large trees, designated historic and archaeological sites, and definable rock outcroppings, lava tubes, detailed plans, and specifications of all drainage devices and utilities, including bank protection, walls, cribbing, dams, silting or sediment basins, landscaping, screen planting, erosion control planting, or other protective devices to be constructed in connection with, or as a part of the proposed work, together with a map showing the drainage area and estimated runoff of the area served by any drains. (3) Where a proposed cut or fill is greater than fifteen feet in height, or on land with slopes exceeding fifteen percent in an area with high plasticity soils, or when any fill is to be placed over a swamp, pond, gully, or lake, the permittee shall submit an engineer's soils report which shall include data regarding the nature, distribution and strength of existing soils and substantiating data from an engineer regarding the safety of the proposed grading, the fill, and the material to be used, and describing the cut sections showing the height, cut slope, benches, and material composing the cut bank. (c) An applicant for a grubbing permit shall furnish two sets of plot plans showing the location, the property boundaries, and any other pertinent information as may be required by the director of public works. Grubbing or land clearing by bulldozer for the purpose of making topographic survey shall not be permitted without an authorized grubbing permit. No permit will be required for cutting or bulldozing of trails for survey lines and access for soil exploration equipment. 10-6