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the confines of the particular development in which <br /> the roof is located. If the proposed impervious area is <br /> greater than 6% but less than 9% a Special Use Permit <br /> may be issued by the Board of County Commissioners. <br /> Consideration to grant impervious coverage relief <br /> shall be based on presented evidence to the County <br /> Commissioner' s satisfaction that the site plan <br /> contains unique features to safeguard against <br /> contamination of stormwater leaving the property, <br /> including the infiltration, retention or detention <br /> of the first one (1) inch of stormwater runoff from <br /> impervious surfaces. The maximum- permitted impervious <br /> coverage shall not exceed 9% . <br /> 2. W er Q1121 1 tv ?asi^- 4re3 <br /> a. For a development or any portion thereof within <br /> the Water Quality Basin Area which does not have <br /> public sewer service, there shall be a limitation <br /> of no more than 15% of the land area of that <br /> development within the Water Quality Basin Area <br /> which is covered by an impervious surface. If <br /> the proposed impervious area is greater than 15% <br /> but less than 20% a Special Use Permit may be <br /> issued by the Board of County Commissioners. <br /> Consideration to grant impervious coverage relief <br /> shall be based on presented evidence to the County <br /> Commissioner' s satisfaction, that the site plan <br /> contains unique features to safeguard against <br /> contamination of stormwater leaving the property , <br /> including the infiltration, retention or detention <br /> _ ..': of the first one (1) inch of stormwater runoff <br /> from impervious surfaces. The maximum permitted <br /> impervious coverage shall not exceed 20%. <br /> b . For a development or any portion thereof within <br /> the Water Quality Basin Area which does have public <br /> sewer service, there shall be a limitation of no <br /> more than 30% of the land area of that development <br /> within the Water Quality Basin Area which is <br /> covered by an impervious surface..-..If- the proposed_ __-- <br /> � � � impervious area is greater than 30% but less than <br /> 40% a Special Use Permit may be issued by the <br /> Board of County Commissioners. Consideration to <br /> grant impervious coverage relief shall be based on <br /> 41 ,;4 presented evidence, to the County Commissioner' s <br /> ? satisfaction, that the site contains unique <br /> features to safeguard against contamination of <br /> stormwater leaving the property, including the <br /> infiltration, retention, or detention of the first <br /> 6 <br />