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Partial final closure projects are allowed undeer 27 CCR, Section 21120. As eight-stagedprojects implemented mnted over the life of the FL with herein, wh e ch onehav ng a separate pa t aC final losure plan prepared two years in advance of the anticipated closure stage. These improvements will clearly enhance landfill containment and environmental protection. A primary benefit of the partial or early closure is the reduction of potential surface water infiltration, which in turn will reduce leachate generation, as well as the related surface seeps that are sometimes observed in unclosed areas following storm events. Termination points between a given closure stage and the active fill areas will be separated by the exterior benches. The very flexible polyethylene (VFPE) component of the final cover system will be placed at transition points between stages and placed in an anchor trench. When the next adjacent closure stage is constructed, the upper end of the vegetative soil covering the in-place VFPE for the previous stage will be excavated back and a new layer of VFPE which represents the start of the next stage will be placed (or shingled) over the top of the previous stage VFPE and welded together. A final cover detail at the bench which will be typical of the termination/transition at the benches is shown on Figure 9. Those interface connections between the closure and active fill areas which are not separated by an exterior bench, that is the connection which is made laterally, will be marked. Additional vegetative soil will also be placed to overlap the edge of the final cover by 10 feet. The protective soil and markers will provide adequate protection of the final cover and form a clear separation for continuing active fill operations outside the closure areas. In addition, those interim and final drainage control structures controlling surface water run-on and/or run-off for the designated closure stages will be inspected and maintained to appropriately divert run-on and control run-off. The landfill gas control system will be installed as the site is developed. Permanent gas migration monitoring probes have been or will be installed prior to the closure of each staged construction period. The landfill gas system will be taken off-line and those drainage control system features over refuse will be removed while the final cover is placed and then reinstalled. The landfill gas well head stations will be extended up through the final cover through synthetic boots and then reconnected. Closure Stages 1�. St Wosure of the FL will be conducted throughout the development of the -landfill. Cu ently, it is anticipated that the Stage I closure area will be closed in 2015. Subsequent staged closure dates are subject to future refuse inflow rates. Subseauent Partial Final Closure Plans will be submitted two years prior to reac ing final fill elevations for each stage based on the refuse inflow rates for the preceding closure stage. In addition, Construction Quality Assurance (CQA), 2 Forward Landfill-PCPCMPR (L-\Allied\2003.003 Western Region\FORWARD\PCPCMPR\FlnalCPR.doc)