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which, based on Table 1, is 217.8acres. The active fill area will be maintained to an area equal to or less than this coverage area. As shown on Table 1, the maximum closure area will decrease over time. Therefore, the closure cost estimate can be reduced once Stage I is completed and again after Stage VII is completed. The cost estimate presented in Table 3 was prepared to reflect the proposed final closure design elements presented in the FL Preliminary Closure Plan dated 2002. The estimate was also combined with the applicable estimate of construction management/quality assurance services cost to determine the total closure cost. The new closure cost estimate included as part of this PCPCMPR and the existing post-closure cost estimate in the FL Preliminary Post-Closure Maintenance Plan dated 2002 will serve as the basis to fund the closure account over the life of the landfill. The closure cost estimate reflects third-party costs in 2003 dollars. The closure features are grouped into categories for convenience in presenting the cost estimate. A brief description of the components included in each category is given below. 1.8.1 Final Cover d final radio contours the approximate area which will Based on the propose grading require placement of final cover is 217.8 acres. The proposed final cover for the FL will consist of two different covers, one each for the lined and unlined portions of the landfill. For the lined portions of the landfill the final cover will consist of a minimum two400t thick foundation layer (one foot assumed to be in-place) composed of random soil materials; a barrier layer consisting of a synthetic cover (i.e., a 40-mil VFPE geomembrane) overlain by with high density polyethylene (HDPE) geosynthetic drainage strips; and a two-foot vegetative layer of random soils. For the unlined portions of the landfill the final cover will consist of a minimum two-foot thick foundation layer.(one foot assumed to be in-place) composed of random soil materials; a one foot thick low-permeability layers with a permeability of 1x10' cm/sec or less; and a two-foot vegetative layer of random soils. Engineered alternative cover systems may be proposed to address specific engineering requirements that arise in the course of preparing detailed designs for the individual closure stages. The cost of constructing the final cover includes site preparation, site grading, final cover placement and settlement monument installation. 1.8.2 Final Cover Construction Quality Assurance Monitoring and Testing; Costs for CQA include the final cover placement tests, inspections and reporting. 8 Forward Landfill-PCPCMPR (L:\Allied\2003.003 Western Region\FORWARD\PCPCMPR\FinalCPR.doc)