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DISTRICT UNDISTURBED AREA <br />UNIV-CA The area necessary to meet impervious surface requirements shall <br />CANE-CA remain undisturbed during the construction process. - <br />L1-ENO-CA <br />U-ENO-PW The area to remain undisturbed shall include portions of the lot utilized <br /> for stormwater infiltration. <br /> All clearing limits shall be clearly marked and observed. <br />All Other Watershed As may be required pursuant to an approved grading permit or erosion <br />Overlay Districts control plan. <br />6.23.7. STREAM BUFFERS <br />a) Definition <br />22 <br />A stream buffer is an area of land. adjacent to perennial and intermittent streams which, except as <br />stated below, must remain undisturbed in its natural state. Perennial streams are those streams <br />shown as solid blue lines and intermittent streams as broken blue lines on the USGS Quadrangle <br />maps for Orange County. . <br />b) Permitted Uses Within Stream Suffers <br />*Amended <br />1-17-95 The following uses are allowed as a matter of right in stream buffers. All other uses are prohibited, <br />except as provided in Article 6.23.10 of this Ordinance. <br />1) Above-ground and buried utility lines for local distribution of electricity, telephone and <br />cable television service, accessory and appurtenant apparatus such as poles, guy wires, <br />transformers and switching boxes, and individual or coz~n~munity wells. <br />Individual or community wastewater disposal systems are not permitted in stream buffers. <br />Public water and sewer lines are permitted only as allowed by the Orange County Water <br />and Sewer Policy, and may be located within stxeam buffers only to the extent necessary to <br />cross the stream buffer as closely as possible to perpendiculaz. <br />2) Public and private streets, bridges and railroad rights-af--way, provided that they enter and <br />t the buffer area as nearly perpendicular as possible. <br />c) Land 1>H~tl~rbance and Planting of Vegetation <br />1) Area within a stream buffer which is subject to serious erosion may be disturbed for the <br />purpose of planting and maintaining erosion-resistant vegetative cover. <br />Amended 2) Existing forested areas or any other healthy vegetation cannot be removed from a stream <br />5/21/97 buffer, except where replaced with vegetation resulting in comparable stormwater runoff <br />velocity and quantity one year after planting. <br />