Agenda - 03-17-1982 - Laserfiche WebLink

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------rnret-t."-1""minPoroWINIPPIPP • 6.23 EXTRA RE,UIREMENTS FOR PROTECTED WATERSHED DISTRICTS (PW-I ND PW-II) 6.23.1 Stream Buffers Required In Protected Watersheds Within Protected Watershed Districts, an area of land along perennial streams shall be required to remain in its natural state, unless the area is subject to serious erosion in which case an erosion resistant vegetative cover shall be established and maintained. Perennial streams Are those streams in solid blue and dashed blue on the USGS Quadrangle map series for Orange County. 6.23.1 a) Width of Buffer Calculated The stream buffer area shall start at the outer edge of the flood plain and be measured a distance of fifty (50) feet away from the flood plain plus an additional distance depending on the slope near the stream. The slope shall be calculated by measuring a distance 250 feet from the cen- ter of the stream, determining the average rise in elevation and multi- plying that value by four. This value shall be added to the minimum buffer of 50 feet to determine total width of buffer area required. The maximum buffer in any case shall not exceed IS-0 .4Whim-val-de . The flood plain is defined in the Orange County Flood Damage Prevention Ordinance, by special survey by registered engineers or surveyors, by the alluvial soil as designated in the OrangeCounty soil survey, or through a site analysis by the Orange County Planning Staff. Slope shall be determined from the USGS Quadrangle map, by on-site measurements, or, by special survey by re- gistered engineers or surveyors. 6.23.1 b) Development Advisory Committee's Review of Stream Buffers The Development Advisory Committee established in Article 2.4.2., can review the buffer requirements for all developments and may re- commend additional buffer area where necessary. 6.23.1 c) Permitted Uses Within Stream Buffer .Areas 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 appertent 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. Neighborhood utility facilities located within a public right of way with the permission of the owner of the right of way (State, City or 7bn