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IV <br />0002`86 <br />in which the proposed use does not satisfy <br />the requirements for approval of the <br />application for a Special Use. <br />own*NCB nanwII'T m : <br />An impervious surface is a surface composed of any material <br />which inpedes or prevents the natural infiltration of•water <br />into the soil. Such surfaces shall include any concrete or <br />asphalt surface. These would include, but not be limited to, <br />streets and parking areas, sidewalks, patios " structures <br />which cover the land. As a watershed bey developed the <br />amount of impervious surface increases causing a decrease in <br />soil absorption of stormwater runoff and an increase in <br />direct runoff to streme and other water bodies resulting in <br />an increase in potential water pollution. <br />In order to promote infiltration of stormwater runoff into <br />the soil and to minimize direct and immediate runoff into <br />streams and water supply impoun Nx*s, impervious surface <br />ratios shall be required as provided in the Table of Impervi <br />our Surface mti.os Section 6.23.4. mpervious surface <br />calculations for an individual development aball be <br />cumulative for original construction and. any subsequent <br />additions and calculations of impervious surface coverage for <br />individual lots small include that portion of a right of-VRY <br />between the center line of the street and the abutting <br />property line of the lot. <br />CODlIUM AHRNMMTP(S) <br />6.23.4 Maximum Impervious Surface Ratios <br />(SEE ATnm= TAEiIrE S) <br />CIRDD = A (S) : <br />6.23.7 Contrnl of the first • 2f R Off_froae v;tv,a SL+rfeces <br />Stormwater runoff from iffpervieus surfaces generally carry <br />large amounts of oil, nutrients, metals, bacteria and other <br />pollutants. The amount of such pollutants in storomter <br />runoff is closely associated with the lard use from which it <br />originates. An important determinant of water quality is the <br />increase in impervious surfaces which prevent the natural <br />infiltration of water into the soil. Mos t of the pollutant <br />concentration is carried in the "first. flush" of runoff. To <br />control this pollutant load within the Protected Watershed -II <br />district the first one half -inch (1/2") of runoff from all <br />Impervious surfaces in new developments shall be controlled. <br />reduce <br />The purpose of the storrmater control measure is to <br />