21 SUPPLEMENTAL - Laserfiche WebLink

LIVERMOREDESIGN CRITERIA 4.14. Grading and Drainage A site plan indicating proposed grading and drainage (including drainage flow, contours, and elevations) shall be submitted with the Development Plan (as outlined in Section 5.2)and approved in writing by the City prior to construction.Compatible grading and drainage between adjacent land and Improvements shall be established to control drainage and erosion and shall meet the following requirements: ➢ Grading permits shall be obtained from the Agency having jurisdiction prior to performing any grading. ➢ Grades, berms, channels, and swales shall be an integral part of the grading, drainage, and paved surface design. ➢ Paved area grades shall not exceed two percent(2.0%)slope for concrete and asphalt paving. ➢ Drainage (and all related facilities) shall be designed to prevent standing water and accommodate all storm water generated by the land in accordance with the Construction Storm Water Pollution Prevention Plan(SWPPP)and the City's SWPPP. ➢ All grading and drainage shall meet the design standards described in AC 150/5320-5C Airport Drainage Design,as may be amended. ➢ All other applicable requirements as set forth in the Livermore Development Code. Drainage shall not adversely impact adjacent land and Improvements and shall flow into natural or developed drainage. Unless otherwise approved by the City, the elevation of the land shall not be changed so as to materially affect the surface elevation or grade of the surrounding land. Gutters and downspouts shall be used to facilitate drainage from roofs. Hangar floor drainage shall flow through an oil/water separator in compliance with the Airport's SWPPP and applicable Legal Requirements. 4.15. Landscaping The City encourages landscaping that creates a compatible and continuous relationship between the land and the Improvements,minimizes the use of irrigation water,maintains an aesthetically pleasing appearance in all areas not covered by Improvements,Ramps,vehicle parking areas,and enhances the existing character of a site. Any portion of the site that is not improved shall be landscaped according to the approved landscaping and irrigation plan submitted with the Development Plan (as outlined in Section 5.2) and approved in writing by the City prior to construction. Landscaping is subject to Municipal Code Chapter 13.235, Water Efficient Landscape,Livermore Development Code Chapter 4.05,Landscape Standards,and the City of Livermore Design Standards and Guidelines,as they exist today or amended. ➢ Landscaping materials shall be installed prior to Certificate of Occupancy(CO). ➢ All landscaping shall be maintained and repaired and kept in good appearance on a year-round basis. ➢ The Lessee (Sublessee, if applicable) shall be solely responsible for landscape maintenance and repair including weed control and removal and replacement of diseased or dead vegetation. Areas with road frontage shall be landscaped with berms and/or shrubbery to provide effective screening of aircraft or vehicle parking areas. ➢ Berms and/or shrubbery shall have a maximum height of four feet, as measured from the aircraft and/or vehicle parking area. Leasing and Development Policy 18 City of Livermore, Livermore Municipal Airport