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00080 <br /> in which the proposed use does not satisfy <br /> the requirements for approval of the <br /> application for a Special Use. <br /> ORDINANCE AMENDMENT(S): <br /> 6.23.4 REVISE Mmoervious Surface Regulated in Protected Watersheds <br /> An impervious surface is a surface composed of any material <br /> which impedes 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 and structures <br /> which cover the land. As a watershed becomes 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 streams 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 impoundments, impervious surface <br /> ratios shall be required as provided in the Table of Impervi <br /> ous Surface Ratios Section 6.23.4. Impervious surface <br /> calculations for an individual development shall be <br /> cumulative for original construction and any subsequent <br /> additions and calculations of impervious surface coverage for <br /> individual lots shall include that portion of a right-of-way <br /> between the center line of the street and the abutting <br /> property line of the lot. <br /> ORDINANCE AMENDMENT(S): <br /> 6.23.4 Maximum Impervious Surface Ratios <br /> (SEE ATTACHED TABLE B) <br /> ORDINANCE AMENDMENT(S): <br /> 6.23.7 Control of the first 1/2" of Runoff from Impervious_ Surfaces <br /> Stormwater runoff from impervious surfaces generally carry <br /> large amounts of oil, nutrients, metals, bacteria and other <br /> pollutants. The amount of such pollutants in stormwater <br /> runoff is closely associated with the land 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. Most 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 /> The purpose of the stormwater control measure is to reduce <br />