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13 <br /> Amended 1/4/94;8/21/01 <br /> DISTRICT IMPERVIOUS SURFACE/DETENTION POND <br /> REQUIREMENTS <br /> (RESIDENTIAL) <br /> UNIV-CA 6% impervious surface limit. <br /> UNIV-PW EXCEPT for all lots which existed prior to 4/2/90, <br /> which are subject to impervious surface limits as <br /> provided in the following Table (entitled Sliding Scale <br /> for Residential Impervious Surface Ratios — Univ, <br /> Cane, and Little). <br /> * BMPs cannot be used to satisfy watershed <br /> impervious surface requirements. <br /> CANE-CA 6% impervious surface limit. <br /> CANE-PW EXCEPT for lots smaller than two acres which existed <br /> U ENO GA. prior to 1/1/94, which are subject to impervious <br /> surface limits as provided in the following Table <br /> (entitled Sliding Scale for Residential Impervious <br /> Surface Ratios—Univ, Cane, and Little). <br /> * BMPs cannot be used to satisfy watershed <br /> impervious surface requirements. <br /> U-ENO-CA 6% impervious surface limit. <br /> EXCEPT for lots smaller than #we--five acres which <br /> existed prior to X946/1/2010 for date of amendment <br /> adoption), which are subject to impervious surface <br /> limits as provided in the following Table (entitled <br /> Sliding Scale for Residential Impervious Surface <br /> Ratios—Upper Eno). <br /> * BMPs cannot be used to satisfy watershed <br /> impervious surface requirements. <br /> LITTLE-PW 6% impervious surface limit. <br /> EXCEPT for lots which existed prior to 1/1/94, which <br /> are subject to impervious surface limits as provided in <br /> the following Table (entitled Sliding Scale for <br /> Residential Impervious Surface Ratios - Univ, Cane, <br /> and Little . <br /> * BMPs cannot be used to satisfy watershed <br /> impervious surface requirements. <br /> FLAT-PW 12% impervious surface limit for new and existing lots. <br /> HYCO-PW * BMPs cannot be used to satisfy watershed <br /> impervious surface requirements. <br /> U-ENO-PW 12% impervious surface limit for existing and new lots <br /> BACK-PW outside of Transition Areas as designated in the <br /> Orange County Land Use Plan. <br /> * BMPs cannot be used to satisfy watershed <br /> impervious surface requirements. <br /> 30% impervious surface limit for developments which <br /> exceed a density 1 du/acre within Transition Areas as <br /> designated in the Orange County Land Use Plan. <br />