Agenda - 06-01-2010 - 4k - Laserfiche WebLink

Browse Search

.. 29 General Engineering and Environmental Management Services legacy of waste disposal at White Street and the numerous residential areas adjacent to the landfill, the City decided to close the landfill to MSW waste and construct a transfer station to haul the waste out of the county to a private landfill. In 2007, HDR developed a Construction & Demolition (C &D) Landfill Master Plan to assist the City in weighing its options with respect to continual disposal operations on -site. This evaluated anticipated landfill fill dates under varying waste acceptance rates and landfill capacities. This work included the submittal of Permit Modifications for Phase III to increase the waste side slopes from a 4- horizontal to 1- vertical to a 3- horizontal to 1- vertical. LANDFILL GAS HDR conducted a study of Greensboro's unlined Phase II gas system in 2001 to identify potential enhancements in collection efficiency and to provide insight on improved operations. In 2002, HDR designed the landfill gas collection system for Phase III. This design required the addition of a skid - mounted flare and blower system that would allow the City to either flare the landfill gas or integrate it into Phase III's transmission pipeline to Cone Mills. The flare and blower system was bid and constructed in 2002 along with Phase A of the landfill gas collection system. HDR also assisted the City in its annual air quality reporting from 2000 to 2005 and currently provides this service. This includes assisting the City in performing and submitting its air quality toxics modeling. HDR is currently providing oversight for the landfill staff on a weekly basis to ensure good operation of its landfill gas systems and compliance with New Source Performance Standards (NSPS) and National Emission Standards for Hazardous Air Pollutants (NESHAP) regulations. TRANSFER STATION HDR was selected for the Design & Permitting of the Transfer Station and development of an RFP to solicit proposals for hauling and disposing of the City's Municipal Solid Waste (MSW). The recently completed 900 tons per day (TPD) municipal solid waste transfer station facility consists of a tipping area, administrative offices, facilities for drivers, a citizen drop -off area, scale house, access roads, and on -site, synthetically - lined, sand filter for stormwater management. The transfer station utilizes a bi -level (full grade separation), non - compacted, direct -dump design, consisting of two refuse hoppers, a tipping area on the upper level, and a load -out area on the lower level. The maneuvering area, tipping floor, and operations /control areas are fully enclosed by a pre - engineered metal, panel -type, building. A separate tipping area outside of the transfer building accepts waste from local citizens. Included at the 10 -acre facility site is a 20,000 square foot Surface Sand Filter (SSF). This constructed SSF facility provides stormwater quality treatment and controls peak rates of discharges. Immediately adjacent to the SSF is the MSW trailer staging area, a high use area with 15 over - the -road semi - trailers at any given time. A curb and gutter collection system collects runoff from this area and the scale house, citizen's recycling center, 32,000 -sf. Building, and all drives. Page 14 i 1 R