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development in the area. <br />8.5 Leachate Management <br />Because of the topographic high that bisects the site in an approximate east -west orientation, it <br />would be necessary to drain the leachate generated by the landfill unit to two collection points, one <br />at the northwest and one at the southwest end of the unit. These collection/storage facilities would <br />be connected with a force main, and are approximately located on Drawing No. 3. If at the time of <br />landfill development, the leachate generated by the existing South Eubanks Landfill was still being <br />disposed through a pump - and -haul arrangement, it may be desirable to install a force main from the <br />South Eubanks leachate pond to the new system, consisting of the northwest and southwest tanks. <br />From the southwest tank, the leachate could be drained by a gravity line that would connect with the <br />existing Orange Water and Sewer Authority (OWASA) system. One advantage to this approach is <br />that it may be possible for some of the residential users in the area southwest of the Greene tract to <br />connect to this proposed gravity sewer. Connection of this leachate line to the existing sewer would <br />be contingent upon receiving approval from OWASA. <br />9.0 CONCLUSION <br />Based on this evaluation, development of the solid waste management facilities on the Greene and <br />Neville tracts discussed herein appears to be feasible from an engineering and regulatory perspective. <br />Specifically, the facilities considered in this study were a construction and demolition debris landfill <br />(CDLF) and/or municipal solid waste landfill (MSWLF), a municipal solid waste transfer facility, <br />and/or a materials recovery facility (MRF). The key findings of this report are as follows: <br />Solid waste management facilities are currently permitted within the zoning designation of <br />the Greene tract. The Neville tract would need to be rezoned by Orange County prior to <br />development. A new Special Use Permit is required from the Town of Chapel Hill for <br />development of the Greene tract, while a modified Special Use Permit would be required for <br />the Neville tract. <br />The site hydrogeology appears favorable for installation of a groundwater monitoring system <br />that would be required for either a CDLF or MSWLF. <br />Site access would be provided from Eubanks Road, either by using the existing landfill <br />access road, or by constructing a new one along the eastern property boundary. <br />A construction and demolition debris landfill could be operated in conjunction with the <br />existing South Eubanks Road Landfill, and will likely be required beginning in July 1999. <br />Using a 67 -acre landfill footprint on the Greene tract, an imposed maximum landfill <br />elevation of 610 feet (MSL), and the C &D waste stream provided by the Chapel Hill <br />Department of Solid Waste Management, a life of approximately 71 years is projected for <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 14 <br />