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1992 by an additional 2 acres. It is lined with a minimum 2-foot thick <br /> compacted clay liner and contains a blanket LCRS. An interface liner was placed <br /> over the northern, eastern, and western sides of WMU in 1999 and 2000 to <br /> separate the ash from designated.waste that would be placed above it. A final <br /> cover was placed on the southern side in 1999. <br /> WMU F North is an approximately 1-acre leachate impoundment located just <br /> north of the South Branch on the western side of the site. WMU F North was <br /> constructed in 1999 as a double lined unit and contains a GCL overlain by a <br /> 60-mil HDPE geomembrane, a geonet, and an additional 60-mil HDPE <br /> geomembrane. The leachate impoundment was sized based on actual leachate <br /> generation records from 1991 to 1997 and has a design capacity of <br /> approximately 3.5 million gallons. <br /> Soil treatment and sludge drying is permitted to occur in WMU G. WMU G is <br /> divided into G-North and G-South, according to whether they are north or south <br /> of the South Branch. WMU G occupies the same areas as WMUs Future D <br /> and H, and will eventually be replaced by these units. Forward has not been <br /> treating soils or drying sludge during the last several years. If these activities <br /> were to occur, appropriate lining systems would be installed. <br /> The existing portion of the Austin Road Landfill encompasses a 123.9-acre area <br /> located directly north of the North Branch, as shown on Figure 10. The landfill <br /> began accepting municipal solid wastes in 1954 and does not contain a base <br /> liner or leachate collection and removal system (LCRS). Wastes were initially <br /> landfilled utilizing the trench method. Trenches have been excavated to an <br /> approximate 20-foot depth with the excavated materials used for daily cover. <br /> Future Permitted Waste Management Units <br /> As depicted in Figure 10, future Class If WMUs are permitted in the remaining <br /> portions of the northern (Future D) and southern portions (Future H) of the <br /> existing Forward Landfill. The southern portion of the existing Austin Road <br /> Landfill is also permitted as WMUs, however these areas are currently permitted <br /> as Class III units. <br /> Forward Landfill JTD 4-3 <br /> J:\Allied\ForwardUTD Amendment\March 2006 JTD-LEA Resp\JTDUTD Sec 4 Rev.doc: <br /> 05/24/02;Amendment No.1: 5/22/2006 <br />