Orange County NC Website
Browse       Search
including, but not limited to, streets and parking <br /> areas, driveways, sidewalks, patios, and structures <br /> which cover the land. <br /> In order to promote the infiltration of stormwater <br /> runoff into the soil and to minimize direct and <br /> immediate runoff into streams and University Lake <br /> reservoir, impervious surface ratios shall be required <br /> as provided in the Table of Impervious Surface Ratios <br /> for University Lake Watershed - Section 6 .25 .4 . <br /> Impervious surface calculations for an individual <br /> lot shall be cumulative, including the original <br /> construction and any subsequent additions thereto. <br /> The calculation of impervious surface coverage for <br /> an individual lot shall also include one-half of the <br /> street surface on which the lot fronts or abuts; <br /> provided, however, the impervious surface calculation <br /> will not include the surface of any existing street <br /> unless the upgrading of the street to a greater width is <br /> required as part of a development application. In such <br /> cases, only the additional width shall be included in <br /> calculating the impervious surface coverage. <br /> It is the intent of this section that the impervious <br /> surface limitations specified herein shall apply to the <br /> entire tract to be developed. Therefore, if the <br /> subdivision involves the creation of any street or other <br /> impervious surface outside the boundaries of the lots so <br /> created, then the total impervious surface allocation <br /> may be determined as follows : <br /> a. The .total area of permissible impervious surface <br /> for the entire subdivision shall be calculated, <br /> applying the percentage limitations set forth in <br /> Table 6 . 25 . 4 . <br /> b. From the total area calculated pursuant to a. <br /> above, there shall be subtracted the impervious <br /> surface area within streets and other areas outside <br /> of the individual lot boundaries . <br /> c. Following the calculation set forth in b. above, <br /> the remaining permissible impervious surface shall <br /> be allocated equally to each lot by the subdivider <br /> or as may be approved by the Zoning Officer. The <br /> allocation shall be indicated on the face of the <br /> final subdivision plat, and any purchaser of such <br /> lot shall be bound by such allocation. <br /> For conventional subdivisions to be developed in <br /> accordance with the provisions of Article 6 .25 . 1 and <br /> cluster subdivisions to be developed in accordance with <br /> the provisions of Article 6 . 25 . 3, an impervious surface <br />