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GEOMATR1X 5.2 EARTHWORK This section describes work necessary to prepare the site for construction of the newum p p station. Excavation and groundwater conditions, fills and backfills, and drainage requirements are discussed. 5.2.1 Clearing, Gruhbing, and Stripping LAll construction areas should be cleared of objectionable materials, including grass, weeds, concrete, gravel, asphalt pavement, old construction debris, and any other material that might interfere with the performance or completion of the work. At the location of the proposed pump station, within the limits of clearing and below the L ground surface, all roots, and other objectionable material should be grubbed. Old pipes, underground structures, debris, or waste should be removed. Any holes created by the L grubbing process should be backfilled with suitable compacted fill. All objectionable material from clearing and grubbing should be removed from the site and disposed of at a suitable landfill. 5.2.2 Site Preparation Some fillthan 1 less foot)) ma y be required at the site to achieve the desired final grades. Given the nature of site soils, settlements caused by the placement of fill should occur quickly (i.e., as the fill is being placed), if at all. No extended settlement period is required before building the pump station if fill is placed in the manner described in this report. The existing well should be abandoned following all State and County requirements. F 5.2.3 Groundwater and Excavation Conditions Groundwater was encountered at a depth of about 12 feet in the one boring drilled of the site. IL Because excavations are not expected to be more than 1 or 2 feet below ground surface, groundwater should not be encountered in the excavations made at the site for construction of the pump station. Connecting pipelines that are deeply buried (i.e., buried deeper than about 10 feet)probably will encounter groundwater and/or wetlsoft soils. As described in Section 4.0, the boring drilled at the site encountered predominantly sandy clay/clayey sand. Excavating these soils for construction of the pump station and connecting pipelines should be possible with conventional earthmoving equipment that is in good repair. L 1:Trojectl5 000s153131LEWIS-MAN.DOG i L 6