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> <br /> I;. <br /> 4 SUBSURFACE CONDITIONS <br /> 4.1 Sol! <br /> The soils at the site consist primarily of clayey sands and clean sands, <br /> with occasional lenses of clay and silt. Since the soil boring was drilled <br /> LL through, the excavation, gravel fill was encountered to a depth of 16.5 feet. <br /> Sands were encountered from 16.5 to 76 feet, with one sandy clay <br /> interbed at a depth of approximately 53 to 58 feet. <br /> 4.2 Ground Water <br /> Ground water was first encountered approximately 69 feet below the <br /> ground surface, and the static water level is approximately 68 feet below <br /> the ground surface. Based upon EMCQN's knowledge of the area and on <br /> topographic information, the ground-water flow direction is probably <br /> _.. _ toward the south-southwest. <br /> i <br /> . pjg1g051g050101d 6 Rev.0 July 2, 1991 <br /> Emcon Associates <br />