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Interim drainage and erosion control structures will be constructed and periodically relocated as waste filling progresses. This will provide continuous stormwater collection and conveyance in a controlled manner and minimize erosion, ponding, and the potential for leachate generation and/or surface water contamination. The following subsections provide a discussion of the phased development within the proposed lateral expansion area. 5.2.4.1 PHASE 1 As filling within the existing permitted refuse footprint approaches the Phase 1 area, work will begin on the excavation of Phase 1, which is located in the northeast corner of FL. Filling in this area will most likely occur in conjunction with existing operations north of the main access road and scalehouse, prior to development of the larger lateral expansion areas along the west and south sides of the FL. 5.2.4.2 PHASE 2 Prior to completion of filling within the existing refuse footprint and Phase 1, work will begin on the excavation of Phase 2. Filling in this area will most likely occur after the existing refuse fill area to the north of the main access road and scalehouse has reached final grades. Upon completion of excavation of the initial construction stage within Phase 2, the required base liner will be constructed and fill operations initiated. Excess material from the excavation of Phase 2 will be stockpiled within the landfill footprint and utilized for daily and intermediate cover. All surface drainage control facilities will be designed to accommodate a peak discharge resulting from a 1,000-year, 24-hour storm event. Storm water run-off volumes and final storm water drainage control facilities will be sized to carry runoff from the site and any surrounding tributary drainage. 5.2.4.3 PHASE 3 Prior to completion of filling in Phase 2, work will begin on the excavation of Phase 3 to ensure the continued availability of refuse capacity. Phase 3 lies to the north of Phase 2. Activities will be conducted in the same manner as in the previous excavation, including stockpiling of excess material excavated. Liner and LCRS construction will occur just before Phase 2 reaches its waste capacity. Forward Landfill Project Description 5-5 BRYAN A.STIRRAT&ASSOCIATES (j:\Allied\Forward\2007.0018 Lateral Expansion\Reports\Prof Descrip\021308 Final Proj Des\Sec 5.doc:2/13/2008)