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B. STUDY AREA PROFILE <br /> Soils, slope and Topography <br /> The Efland community, located along the railroad and US 70, lies <br /> along a ridge line which contains fair-poor soils. Accordingly, <br /> these soils have little slope associated with them and Efland is <br /> generally level in topography. <br /> The most prominent soils found in the Efland Area are Georgeville <br /> silt loam, (with 2-10% slopes) ; Herndon silt loam (with 2-6% <br /> slopes) ; and Tatum silt loam (with 8-15% slopes) . Both Georgeville <br /> and Herndon soils have high potential for most urban uses, such as <br /> dwellings and roads, and are also well--suited for many forms of <br /> recreation. The remaining type of soil, Tatum silt loam, is more <br /> problematic with less potential for urban and recreational uses <br /> because of their steeper slopes. In addition, all of these soils <br /> have moderate permeability, which may affect the performance of <br /> septic tank absorption fields. This limitation has presented itself <br /> in wastewater system failures in the Efland area - including the <br /> Efland-Cheeks School - over the past several years. However, these <br /> problems can generally be overcome by modifying the field or <br /> increasing the size of the absorption area, or of course, by <br /> providing sanitary sewer service. <br /> The mean elevation of Efland is 665 feet above sea level. With the <br /> Southern Railroad as the ridge line, the area falls in topography <br /> slowly to the north and south. The only subareas of significant <br /> slope or elevation change are near McGowan Creek to the north and <br /> the Eno River to the east. <br /> The soils, slope and topography of the Efland Area can be seen in <br /> Map 2 . <br /> KXdrqja_qy and ve station <br /> As previously, stated, Efland is located atop a ridge line that <br /> separates the McGowan Creek/Eno River basin on the north from the <br /> Seven-Mile Creek/Eno River basin on the south. Both of these basins <br /> are within the Upper Eno Water Supply Watershed, a protected <br /> watershed with two current reservoirs and two potential reservoirs <br /> as shown below: <br /> URR er Eno Watershed Reservoirs <br /> Corporation Lake - which provides water to Mebane and <br /> Mebane/Efland. The area north of the Southern Railway drains <br /> largely into McGowan Creek before entering the Corporation Lake/Eno <br /> River and Lake Ben Johnson. The potential Eno River reservoir <br /> north of McGowan Creek (not planned at this time) would be upstream <br /> 4 <br />