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4 <br /> Administration Ordinance <br /> 250' from the stream or FEMA floodplain, whichever is applicable, <br /> along the perpendicular line (2). <br /> c. Subtract (1) from (2). <br /> d. Divide c. by 250. <br /> e. Multiply d. by 100. <br /> f. Perform this calculation for both sides of the stream or floodplain. <br /> (See Attachment A for example of how the calculations shall be <br /> performed) <br /> Hereafter, the number derived in e. will be referred to as "Slope value". <br /> 2) Method A—Stream Buffer Based on Slope and Groundcover <br /> The width of the buffer shall be a minimum of fifty (50) feet from each <br /> edge of the floodplain. , plus the slepe Yalue multiplied by In addition <br /> to the fifty (50) foot buffer, an additional IS feet shall be added to the <br /> 50-foot buffer(65 feet total)where the slope value is less than 7.5%, <br /> as measured 250 feet from the edge of the floodplain. For slope <br /> values 7.6% and greater, as measured 250 feet from the edge of the <br /> floodplain, an additional 30 feet shall be added to the 50-foot buffer <br /> (80 feet total). These calculations shall be made from each side of <br /> either the stream bank or floodplain, whichever is greater. <br /> Section 4: Amend Detailed Table of Contents Section 6.24 to read as follows: <br /> Stream Buffers Outside of Watershed Protection Overlay Districts <br /> Section 5: Amend new Section 6.24 to include a minimum stream buffer for areas <br /> outside of Orange County Watershed Protection Overlay Districts to read <br /> as follows: <br /> In areas not identified on the Official Zoning Atlas as Watershed <br /> Protection Overlay Districts, a stream buffer a minimum of 50 feet in <br /> width shall be established along both sides of perennial streams and <br /> intermittent streams, or along the FEMA identified floodplains, <br /> whichever is greater. Perennial streams are those streams shown as <br /> solid blue lines, and intermittent streams are those streams shown <br /> as broken blue lines on the USGS Quadrangle maps for Orange <br /> County. <br /> Section 6: Amend Detailed Table of Contents Section 6.25 to read as follows: <br /> Minimum Usable Lot Area for Lots that Utilize Ground Absorption <br /> Wastewater Systems <br /> G:robert/august2040ph1StreamBuffer0rdinance(Administration Ordinance) <br />