Agenda - 08-23-1993 - C 2 and C 3 attch

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128 DISTRICT UNDISTURBED AREA UNIV-CA A minimum of the area necessary to meet impervious surface CANE-CA requirements shall remain undisturbed during the construction process. U-ENO-CA The area to remain undisturbed shall include portions of the lot utilized for stormwater infiltration. All clearing limits shall be clearly marked and observed. All Other Watershed As may be required pursuant to an approved grading permit or erosion Overlay Districts control plan. 6.23.10 STREAM BUFFERS a) Definition A stream buffer is an area of land adjacent to perennial and intermittent streams which, except as stated below, must remain undisturbed in its natural state. Perennial streams are those streams shown as solid blue lines and intermittent streams as broken blue lines on the USGS Quadrangle maps for Orange County. b) Permitted Uses Within Stream Buffers The following uses are allowed as a matter of right in stream buffers. All other uses are prohibited. 1) Above-ground and buried utility lines for local distribution of electricity, telephone and cable television service, accessory and appurtenant apparatus such as poles, guy wires, transformers and switching boxes. 2) Bona fide farms, except any use of farm property for non-farm purposes. 3) Public and private streets, bridges and railroad rights-of-way, provided that they enter and exit the buffer area as nearly perpendicular as possible. • c) Land Disturbance and Planting of Vegetation 1) Area within a stream buffer which is subject to serious erosion may be disturbed for the purpose of planting and maintaining erosion-resistant vegetative cover. 2) Existing forested areas or any other healthy vegetation cannot be removed from a stream buffer, except where replaced with vegetation resulting in comparable stormwater runoff velocity and quantity one year after planting. 12