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Legend: <br />® 'topsoil; dark brown, mixlera[ely org:mic, slightly moist, varies Crum about 8 [o <br />l6 inches deep, recwved in tioine are~±s by dozer for drillim~ access. <br />(:Lay (CL); yiLty, Luw t~+ medium plasticity, sand v, occasional };ravels and <br />cob6leti, stiff to very stiff, slighely moist [o moist, medium and tray brown, <br />occasionally porous. <br />Sand 5 Clay (SC-CL); silty, low plasticity, slighely gravelly eo gravelly, <br />occasional cobbles, medium dense to dense and stiff to very stiff, slightly <br />moist, medium brown, [races of coal particles, occasionally porous. <br />Gravel (GC-CPI); sand}• to sand and gravel, clayey co occasionally very clayey <br />with some clay zones, silty, low plasticity, cobbles and boulders, angular, <br />dense, slightly moist, medium broim.. traces of coal particles. <br />Drive sample; 2-inch I.D. Californiai liner sample. <br />Drive sample; standard penetration test (SPT) AST>1 D-1586, 1 3/&-inch I.D. spii[ <br />spoon sample. <br />58/1'? Drive sample blow count; indicates that 58 blows with a 140-pound hammer falling <br />30 inches were required to drive the California or SPT sampler 12 inches. <br />-3- Indicates depth at c~ihich boring caved when checked nn 10-10-85. <br /> <br />Votes: <br />1) Cxploraton• borings were drilled on Sept. 27 5 30 and October 1 5 2, 1985 •.:ith <br />a 4-inch diameter continuous flight power auger. <br />2) Locations and elevations of explorarorv borings provided b_v Schmueser & <br />\ssoc~ia[es, Inc. [there grading was required for access to drill site elevations <br />have been appror:imated. ' <br />3) The lines between materials shoc+n on the exploratory boring logs represent the <br />approximate boundaries between material t,:pes and the transitions may be gradual. <br />4) Plo free water was encountered in th; exploratory borings a[ time of drilling and <br />Cohen checked several days later. F'].uctuations in the water level ma_v occur with <br />time. <br />5) Laboratory Testing Results: <br />lJC = LJaeer Content (%) <br />DD = Dry Density (pcf) <br />-200 = Percent passing the ;Jo. 200 sieve <br />LL = Liquid Limit (%) <br />PI = Plasticity Index (%) <br />1J55 = Water Soluble Sulfate (%) <br /> <br />362 85I Chen and associates, In C. I Legend 5 fJotes of Cxploratory BoringslF;9 4 <br />