Agenda - 05-17-2005-9b - Laserfiche WebLink

Browse Search

ORANGE COUNTY BOARD OF COMMISSIONERS ACTION AGENDA ITEM ABSTRACT Meeting Date: May 17, 2005 Action Agen~da~ Item No. SUBJECT: Contract for Engineering Services to Design Landfill Sewer Connection DEPARTMENT: Purchasing/Solid Waste PUBLIC HEARING: (Y/N) No ATTACHMENT(S): Agreement INFORMATION CONTACT: Pam Jones, Purchasing Director, 245-2650 Gayle Wilson, Solid Waste Director, 968-2885 TELEPHONE NUMBERS: Hillsborough 732-8181 Chapel Hill 968-4501 Durham 688-7331 Mebane 336-227-2031 PURPOSE: To engage the services of Philip Post & Associates to design a force main and gravity sewer to transport leachate from the onsite leachate storage lagoon at the Orange County Landfill to a proposed new manhole at the northeast corner of Eubanks Road and Millhouse Road. BACKGROUND: The existing landfill located on the south side of Eubanks Road was placed in operation on July 1, 1995. Federal and State regulations required that leachate collection be included. At the present time, leachate is pumped into a 3,500-gallon tank truck and transported to an Orange Water and Sewer Authority (OWASA) manhole located at the Town of Chapel Hill Public Works yard. Landfill staff has transported aver 14,000,000 gallons of leachate to the OWASA system since July 1995. The landfill is scheduled to close in 2010. Existing regulations require that Solid Waste staff continue to monitor the landfill and remove leachate from the landfill for a period of not less than 30 years after landfill closure. The 30-year post-closure time frame can be extended by the North Carolina Department of Environment and Natural Resources if leachate is still present. An average of 485 loads of leachate are hauled from the landfill annually. At approximately 65 minutes of staff time required per load, this process equates to .25 of a position's time. Additionally, the maintenance of a tanker truck and occasional scheduled replacement indicate a considerable resource commitment to managing leachate by the existing "pump and haul" method. The estimated annual savings of constructing the sewer line is $15,700. The leachate facility as proposed will also eliminate the potential for a leachate spill on Orange County roads.