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ic. rt,~ <br />-5- <br />• FI11 Areas: Test Holes 1 through 3 are located in a relatively flat. low <br />lying area where an estimated depth of fill on the order of 5 feet wTTI be <br />required to achieve final grade level. Surface and subsoils generally <br />consist of shallow topsoils to soft clay soils within the upper 1 to 4 feet <br />underlain by medium dense to dense sand and gravel deposits. Claystone <br />bedrock was then encountered below approximate 14 to 20-foot depths and <br />extended to the maximum depth drilled. 2$ feet. Free water was encountered <br />at 2 to 4} feet at time of drliling. Water levels may rise to near the <br />existing ground surface dur(ng peak runoff periods. Standing water was noted <br />near Test Hole 1. <br />Beyond approximate Station 43+00, the maJority of the alignment will <br />be elevated above the existing ground with the exception of a cut area <br />• ed]acent to the north of the coal processing facility between approximate <br /> Station 108+00 and Station 128+00. The scope of exploratory drliling was <br />generally not sufficient to determine detailed subsurface Informetlon <br />within all fill areas. Subsoil prof-les established at Test Holes 7, 9 <br />and 10 a m typical of relatively shallow bedrock conditions and consist of <br />approximately 9 to 12 feet of medium stiff to stiff clay overlying claystone <br />bedrock. Results of swell-consoltdatlon tests, Flgs. 12 and 13, indicate <br />that these soils will compress moderately when loaded. The extent of perched <br />free water overlying bedrock Is variable but generally would occur in lower <br />fill areas. <br />Cut Areas: Two maJor cut areas are proposed, each with stgnlflcantly <br />different subsoil conditions. The cut area within the north.ptirtlon of <br />the alignment, Test Holes 4 through 6, will generally be In clay and/or <br />sand and gravel soils within the deeper cut portion (Test Holes 5 and 6) <br />i <br />