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infringe too closely upon the surface of the slope, the maximum <br />allowable bearing capacity utilized in design of the foundations <br />' should be reduced by an`. ropriate amount to account for the <br />' lack of confinement in that asi~ea. <br />Stacking Tine Faclll~y~ <br />' The proposed stacking tube facility is located at the toe of <br />the existing slope in an area containing a thick deposit of river <br />terrace or aluvial soil. The stacking tube is in the vicinity of <br />-I Test Boring No. 5, as indicated on the Test Boring Location <br />Diagram in the Appendix of this report. This test boring <br />I indicated approximately 2 feet of low density, man-made fill <br />underlain by medium to high density river terrace material <br />consisting of sand and gravel with large cobbles. Auger refusal <br />I was obtained in this test boring at a depth on the order of 10 <br />feet. A free water surface was observed in this area at a depth <br />I of 6 feet. We would anticipate an allowable bearing capacity for <br />shallow foundations in this area on the order of 5000 psf. with <br />no minimum dead load requirement. The presence of the free water <br />_I surface at a depth of 6 feet should be taken into account in the <br />design and construction of shallow foundation systems at this <br />I site. The type of material present at this site should be <br />relatively insensitive to settlement from foundation loading or <br />I surcharge loading. However, it must be recognized that at least <br />some degree of settlement will occur from the surcharge produced <br />I by coal storage immediately around the stacking tube. ~~e would <br />' anticipate this settlement to be relatively minor in extent and <br />rapid in nature due to the sandy, high permeability nature of the <br />I soil. <br />15 <br />