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SD-12 Efficient Irrigation <br />¦ resign timing and application methods of irrigation water to minimize the runoff of excess <br />irrigation water into the storm water drainage system. <br />¦ Group plants with similar water requirements in order to reduce excess irrigation runoff and <br />promote surface filtration. Choose plants with low irrigation requirements (for example, <br />native or drought tolerant species). Consider design features such as: <br />- Using mulches (such as wood chips or bar) in planter areas vvithout ground cover to <br />minimize sediment in runoff <br />- Installing, appropriate plant materials for the location, in accordance with amount of <br />sunlight and climate, and use native plant materials where possible and/or as <br />recommended by the landscape architect <br />- Leaving a vegetative barrier along the property boundary and interior watercourses, to <br />act as a pollutant filter, where appropriate and feasible <br />- Choosing plants that minimize or eliminate the use of fertilizer or pesticides to sustain <br />growth <br />¦ Employ other comparable, equally effective methods to reduce irrigation water runoff. <br />Redeveloping Existing Installations <br />Various jurisdictional storm water management and mitigation plans (SUSMP,WQMP, etc.) <br />define "redevelopment" in terms of amounts of additional impervious area, increases in gross <br />floor area and/or exterior construction, and land disturbing activities with structural or <br />impen ions surfaces. The definition of- redevelopment" must be consulted to determine: <br />whether or not the requirements for new development apply= to areas intended for <br />redevelopment. If the cIt f' nition applies, the steps outlined under "designing new installations" <br />above should be followed. <br />Other Resources <br />A Manual for the Standard Urban Stonnwater Mitigation Plan (StsSMP), Los Nngeles County <br />Department of Public Works, May 2002. <br />Model Standard Urban Storm Water Mitigation Plan (St SMI') for San Diego County, Port of <br />San Diego, and Cities in San Diego County, February 14, 2002. <br />Model Water (duality Management Plan (1,VQMP) for County of Orange. Orange Comity Flood <br />Control District, and the Incorporated Cities of Orange County,, Draft February 2003- <br />Ventura Countywide Technical Guidance Manual for StormAvater Quality Control Measures, <br />,July 2002. <br />2 of 2 California Stormwater BMP Handbook. )anua^f 2003 <br />Nevr Development and Redevelopment <br />ww%v.cabmpha ndbooks.com <br />20D-37