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(ilOö <br /> 6,23.1 d) Stream 3uffers Included As Part Of Minimum Lot Size Requirements <br /> Stream buffers may be used as part of the required lot area or <br /> lot size for residential and non-residential developments. <br /> 6.23.1 e) Existin. venetation In Buffer Areas <br /> existing forested areas or any healthy natural vegetation can <br /> not be removed from a stream buffer except when replaced with <br /> vegetation resulting in comparable stormwater runoff velocity <br /> and quantity one year after planting, <br /> 6.23.1 f) New Vegetation In Buffer Areas Recuired <br /> New vegetation shall be planted to capture non-source pollutants <br /> before they reach the oerennial stream, as per applicable Orange <br /> County standards. <br /> 6.23.2 Lot Size Reouirements In the Protected Watershed T.' cpw.....=, District <br /> a) Irrespective of densities allowed by this ordinance, the <br /> development of any land or structure within the Protected <br /> Watershed II district shall require one of the following: <br /> a) a minimum 5 acre lot size without stormwater <br /> management techniaues. <br /> b) a minimum 2 acre lot size yshen provision <br /> is made to manage stormwater runoff. Runoff <br /> from the 10-year storm on the developed site <br /> shall not be greater than the rate of runoff <br /> on the same site prior to the proposed develoo- <br /> ment. <br /> c) These regulations shall apply only to divisions <br /> of land that qualify as major modivisions under <br /> the Orange County subdivision regulations. <br /> 6,23.3 Reserved <br /> 6.23.4 Impervious Surface Regulated in Protected Watersheds <br /> An impervious surface is any surface through which water <br /> cannot penetrate or can only penetrate slowly. This would <br /> include paved streets and oarking lots, concrete sidewalks, <br /> and structures which. cover land. As a watershed becomes <br /> developed, the amount of impervious surface increases causing <br /> a decrease in soil absorption of storm water and an increase <br /> in direct runoff to streams witn a resulting increase in <br /> potential water pollution, <br /> In order to promote infiltration of storm water into the maximum <br /> soil and minimize direct and immediate runoff into strePms <br /> impervious surface ratios shall be required in <br /> Protected Watershed II (P';-EI) Districts. <br />