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information. Drawing No. 3 shows two suggested approaches to using this tract for MSW disposal. <br />One approach shows a lined disposal unit on the Greene Tract, with a MRF located on the Neville <br />Tract. This approach is based on the assumption that C &D waste will either be co- disposed with the <br />MSW, or that other off -site arrangements will be made for C &D disposal. The other approach on <br />Drawing No. 3 shows a lined MSWLF unit with an unlined C &D disposal unit immediately adjacent. <br />Assuming regulatory approval, this would allow for "piggybacking" of C &D debris over the slopes <br />of the MSW unit, which greatly increases the disposal capacity as compared to two individual <br />landfill units. <br />The MSWLF footprint shown on Drawing No. 3 encompasses approximately 67 acres. The <br />maximum height of the landfill was again limited to elevation 610 feet to be consistent with the <br />permitted height of the adjacent South Eubanks Road landfill; however, the site could support a <br />landfill with a maximum elevation of 710 feet. The total airspace of the landfill is approximately <br />4,300,000 cubic yards (cy). <br />Using an assumed waste density of 1200 pounds per cubic yard (pcy) and a waste -to -cover ratio of <br />7:1, the total MSW waste volume in the landfill would be approximately 1,800,000 tons. Using the <br />projected waste volumes provided in Table 3, the MSWLF would have a projected life of <br />approximately 29 years, from the year 2006 until the year 2034. Given the cell layout and this <br />projected life, additional property acquisition is not recommended. If a maximum landfill elevation <br />of 710 feet were allowed, the projected life could be approximately 47 years. <br />The estimated life of the adjacent MSW and C &D landfills is. approximately 29 years for the C &D <br />portion (July 1, 1999 - 2027), and 22 years for the MSW portion (2006 - 2027). This allows for the <br />separate portions to begin operating at different times, and for them to reach capacity in both portions <br />at approximately the same time. The combined projected waste volumes are provided in Table 4. <br />8.4 Access Considerations <br />Two options exist for site access from Eubanks Road. One option is to use the existing entrance for <br />the South Eubanks Road Landfill, and the scales and scalehouse. The access road would be extended <br />south through the Neville tract to the Greene tract using the current haul road for the ongoing borrow <br />activities. Much of the grading for the road has already been performed for operations of the existing <br />landfill. On -site access roads would be located in areas that would most efficiently serve the active <br />sub -cell at any given time. <br />The second option would be to construct a new road along the eastern property boundary of the <br />South Eubanks Road Landfill. The benefit of a new road location would be to avoid having to wind <br />through the existing landfill property. The existing scales would be relocated as needed. A buffer <br />of 100 feet would be required under the existing Development Ordinance. However, it is possible <br />that other site buffers could be considered in a modification to the Special Use Permit. Access from <br />routes other than Eubanks Road were not considered due to the high density of residential <br />Study of Solid Waste Management Options JOYCE ENGINEERING, INC. <br />for the Greene and Neville Tracts February 4, 1998 <br />Orange County, North Carolina 13 <br />