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Final Construction Quality Assurance Report—WMU FU-13 Forward Landfill 2.0 PROJECT DESCRIPTION • 2.1 PROJECT COMPONENTS—WMU FU-13 WMU FU-13 encompasses approximately 10.2 acres, which includes approximately 6.1 acres of side-slope and 4.1 acres of floor. WMU FU-13 ties into the southern side of the existing FU-08 (northern portion) and the eastern portion of the existing WMU FU-10. The composite liner components from WMU FU-08, FU-10, and FU-13 were joined together to provide a continuous composite liner system. This system, installed within the WMU FU-13 project area, consists of the following (from top to bottom): FLOOR BOTTOM • 1-foot thick protective operations layer soils; • >7 oz/yd2 filter geotextile; • 1-foot thick granular drainage layer overlapping LCRS trenches with HDPE pipe and coarse gravel encapsulated in 7-oz/yd2 filter geotextile; • >12 oz/yd2 cushion geotextile; • 60-mil thick double-side textured HDPE geomembrane; • 2-foot thick low permeability clay liner; and • • Prepared subgrade fill soils. 2:1/4:1 SIDESLOPES • 1-foot thick protective operations layer soils (to be placed 10 feet vertically up the slope, the remaining material will be placed during operations); • Geocomposite drainage material; • 60-mil thick single-side textured HDPE geomembrane; • Geosynthetic clay liner (GCL); and • Prepared subgrade fill soils. TOP DECK AREA • 1-foot thick protective operations layer soils; • >7 oz/yd2 filter geotextile; • 6 inches of granular drainage material; • >12 oz/yd2 cushion geotextile; is 2 Geo-Logic A S S 0 C I A T E 5