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Public Hearing Ordinance <br />An Ordinance Amending the Zoning Ordinance of Orange County <br />Section 1: Amend Article 22 DEFINITIONS by creating a new definition as follows: <br />Lot, Usable -The portion of a zoning lot unencumbered by stream <br />buffers, conservation easements, drainage easements, public and <br />private rights-of-way, access easements, utility easements. This <br />definition also includes areas in lots affected by steep slopes, (i.e. <br />greater than 15%), wildlife corridors, ponds, lakes and streams. <br />Section 2: Amend Section 6.23.7a and Article 22 DEFINITIONS of Stream Buffer to <br />clarify that the stream buffer is not to be included within the floodplain. <br />Stream Buffer - a stream buffer is an area of land adjacent to perennial <br />and intermittent streams, or identified floodplains, which, except as <br />permitted in Article 6.23.7 of this Ordinance, must remain undisturbed in <br />its natural state. Perennial streams are shown as solid blue lines and <br />intermittent streams as broken lines on the USGS Quadrangle maps. <br />Section 3: (page 6-41 -Zoning Ordinance) 6.23.7d. Calculatin the Width of Stream <br />Buffer <br />d. Calculating Width of Stream Buffer <br />Those streams identified by the Federal Emergency Management Agency <br />(FEMA) maps to have floodplains shall have stream buffers calculated from <br />the outside edges of the floodplain. <br />1) How to Calculate Slo e <br />a. Draw awe 250' length perpendicular lines, at 100- foot horizontal <br />intervals along the entire length of the outside edges of the stream, <br />ts~e~, or the outer edge of the FEMA floodplain, whichever is <br />greater. <br />b. Determine the elevation at either the stream itself (1) or the outer edge <br />of the FEMA floodplain, whichever is highest, and at the point 250' <br />from the stream or FEMA floodplain, whichever is applicable, along the <br />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 />Hereafter, the number derived in e. will be referred to as "slope value". <br />(~~~3 <br />