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' Soli Boring Logs <br /> s <br /> University of the Pacific <br /> t 1081 W Mendocino Avenue <br /> Stockton, California <br /> tShaded interval indicates depth of sample recovered for laboratory analysis <br /> ' LOG OF SOIL BORING TP-2 <br /> Notes Depth Soil Desenphon <br /> ' Interval (ft) <br /> 7/5/00 0 to 2 Base material for asphalt surface consisting of <br /> ' compacted gravel with fines and underlying reworked <br /> Logged and sampled clayey fill material <br /> by PBH, Water <br /> ' sampling by CXS 2 to 4 Brown Clayey Salt [ML] with low plasticity, damp, <br /> very stiff to hard, contains occasional gravel and fine <br /> ' sand (Representative of native material outside <br /> former UST pit excavation) <br /> ' 4 to 8 Brown Clayey Silt [ML], contains occasional gravel <br /> and fine sand damp very stiff to hard, low plasticity, <br /> some light-colored mottling <br /> Depth to groundwater <br /> ' <br /> while drilling Very 8 to 12 Brown (yellow-red) Clayey Silt [ML], fine sand and varying clay fraction, moist, stiff to very stiff, low <br /> moist fine-grained plasticity, occasional light-colored mottling <br /> matenal, no saturation <br /> ' 18 feet _ _ <br /> 12 tc 16 Brown- red Clayey Silt [ML],fine sand and varying <br /> Water rose in boring to clay fraction,moist, very stiff to hard, low plasticity <br /> approx 15 feet, 3 Moisture increases with depth Soil sample at 13 5 to <br /> ' hours after drilling 14 feet and 15 5 to 16 feet <br /> t 16.to- Brown-red Sandy Silt [ML] and Silty Sand [SM] <br /> (gradational with depth),fine sand and varying clay <br /> fraction, moist, very stiff, moderate plasticity <br /> ' Saturated soil conditions at+/- 18 feet Soil sample <br /> Groundwater sampled from 19 5 to 20 feet <br /> Hydra-punch set for <br /> t groundwater sampling <br /> at 24 feet 20 .to 24 Brown Silty Sand [SM],fine sand and with varying <br /> clay fraction, moist, very stiff, moderate plasticity <br /> Bottom of Boring 24 Moisture increased but no obvious saturated zone due <br /> feet to tight clayey silt Soil sample from 23 5 to 24 feet <br />