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<br />Santa Ana River Channel <br />EOI-RI552 <br /> <br />50-10 <br /> <br />Site Design & Landscape Planning <br /> <br />/)csiy" illY ;\'t'It' JlIslcrllulious <br /> <br />Begin the qe\'elopment (Jf a plan for the landscape unit with attention to the folIO\ving g('ncra] <br />principles: <br /> <br />· Fnnnulate the plan on the basis of clearly articulated community gO.1Is. Carefully identify <br />('onJ1icL<; and chOices between retaining and protecting desired resources and community <br />g,1'O\11h. <br /> <br />· 1\'lap and assess land suitability for urban uses. Include the f('Uowing landscape features in <br />the assessment: wooded land. open ul1\wJoded land, steep slopes, emsion-prone soils, <br />foundation suitability, soil suitability for \I'asle disposal, aquifers, aquifer recharge areas, <br />wetlands, tlnodplains, surface waters. agricultural lands, and various categories of urhan <br />land use. When appmpriate. the assessment can highlight outstanding local or regional <br />resources that the community dC'tenllincs should be protected (c.g.. a scenic area, <br />recreationfJl are:l. thre~ltened species habitat. farmland, fish !'Ull). Mapping and assessment <br />should recognize not onlr these resoun~es but also additional areas needed for their <br />SU:=;tCli;j nee. <br /> <br />Project plan designs should eOnSt'l'Ve natural areas to the clI.tentpossiblc. maximize narunl <br />waLcr storage and inliltration opportunities, and protect slopes and channels, <br /> <br />('OIlSCf'/)(, SallJ/"al Areas during Landscapc Planning <br /> <br />If applicable. the foliowing items are required and must be implemented in the sitE: layout <br />during the suhdi~,isioJl de8ign and ~lppml'al proce,,:;, consistellt ~,'itb applicaNe General Plilll <llld <br />Local ,'\,.re3 Plan policies: <br /> <br />· Cluster development 011 least-sensitive pmtions of a site while lea ling the remaining land in <br />a natunllulidisturbed conditioli. <br /> <br />· Lilllit dealing and gmding of native vegetation at a site to the minimum amount needed to <br />build IN,;. dIlow <teee,;", and provide fire pmtcction. <br /> <br />· Maximize trees fJnd other \'egetatioll aL each site by planting additional vegetatioil, clustering <br />tree areas, ;md promoting the use ofnati\'e and/or drought tolerfJIlt planL<;. <br /> <br />· Promnte n;jtlll'al ~'egetfJtion by using parking lot islands and other landscaped areas, <br /> <br />· Preserve rip;J!'ifJn areas and wctiands, <br /> <br />M(L\'imil.c Natural M'.'dter Storage and !r~l'i[tnm'on Opportunities H'ilhin the Landsmpc Unit <br /> <br />· Prolllote the cnllsen'stioll of forest eaveI'. [Juilding on land that is alr-eady deforested affecL<; <br />basin hydrology to a lesser extent than cOtlverting forested land, Loss of forest eover reduces <br />interception sLorage, detentiotlln the organic forest fioor layer, and water lossef> by <br />evapotrarbpiraLion. resulting in large peak runoff increases and either their negative effcets <br />or the e.\llense of countering them with structural solutions, <br /> <br />· Mail\tain naLllt"al storage reservoirs and drfJinage corridors, including depressions, a1'e;1S of <br />permeable soits. swales, and intt>rrnittenL sU-eams, Develop and implement policies and <br /> <br />2 of..t <br /> <br />Califoll1ia Stormv..ate<- BMP Handbook <br />Nel.' D~velopment and R..development <br />1,','1" cabmpha ndbooks.com <br /> <br />January 2003 <br /> <br />171h Street Triangle Lease (07.01.09) <br />