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and granitic lithologies predominate. The highly schistose rocks weather to <br /> ' a residuum resembling soil in many characteristics. After denudation and <br /> stripping of surficial material and deeply weathered bedrock, the remaining <br /> bedrock should be resistant to erosion by running water. No prominent joints <br /> or joint sets were observed and no major faults trace through the area. <br /> ' ANTICIPATED SLOPE STABILITY <br /> The proposed excavation plan calls for benches to be dropped progressively <br /> down from east to west with highwalls up to 40 feet high and a slope ratio <br /> of 1/2:1. Bench widths will be 20 to 25 feet. The cut slope stability is <br /> expected to be good because the compositional layering and the foliation both <br /> dip back into the hillside at fairly steep angles and jointing or faulting is <br /> substantially absent. These factors will serve to eliminate planes of <br /> ' weakness along which earth and/or rock material could fall , slide or slump <br /> ' downslope. An existing cut immediately east of the graded portion of the site <br /> was observed to stand at near vertical angle with little evidence of gravitional <br /> ' movement of earth and rock material . <br /> Without the benefit of exploratory test drilling, it can not be guaranteed <br /> that the observed lithologies and structures will persist at depth and laterally <br /> tinto the hillside. However, outcrops observed along the western periphery of <br /> the site and considerably upslope (east) from the graded portion of the site <br /> ' exhibited similar characteristics to all other outcrops on the property. <br /> ' F. M. FOX & ASSOCIATES, INC. P FL O Reviewed by: <br /> �N <br /> Paul T. Banks, Jr. co �;'� Bruce A. Florqui ys.caP.E. <br /> ' Geologist x Iwo14412 W: Vice President <br /> PTB:kl z `n��lssoN-L <br /> Copies: 3 f Op CO��� <br /> tl <br />