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' Soil Boring Logs <br /> University of the Pacific <br /> 1081 W Mendocino Avenue <br /> Stockton, California <br /> Shaded interval indicates depth of sample recovered for laboratory analysis <br /> LOG OF SOIL BORING TP-4 <br /> ' Notes Depth Soil Description <br /> Interval (ft) <br /> 715100 0 to 3 Base material for asphalt surface consisting of <br /> compacted gravel with fines and underlying reworked <br /> 1 Logged by PBH, clayey fill material <br /> Water sampling by <br /> CXS 3 to 4 Brown-red Clayey Silt [ML] with low plasticity, <br /> ' damp, hard, contains occasional gravel and fine sand <br /> (Representative of native material outside former UST <br /> pit excavation) <br /> 1 <br /> 4 to 8 Brown-red Clayey Silt [NIL], contains occasional <br /> ' gravel and fine sand, damp, very stiff to hard, low <br /> plasticity <br /> Depth to groundwater 8 to 12 Brown (yellow-red) Clayey Silt [ML],fine sand and <br /> while drilling 17-19 varying clay fraction, moist, stiff to very stiff, low <br /> feet Water rose in plasticity Soil sample from t 1 5 to 12 feet <br /> ' boring approximately <br /> 3 feet (to 14 foot <br /> depth) 2 5 hours after 12 to 16 Brown Clayey Silt[ML], fine sand and varying clay drilling _ fraction,moist, very stiff to hard, low plasticity <br /> Moisture and sand content increases with depth Soil <br /> sample from 14 5 to 15 feet <br /> ' Groundwater sampled - <br /> 16 tom 20 Brown Sandy Silt [ML] and Silty Sand [SM] <br /> ' Hydro-punch set for (gradational with depth),fine sand and varying clay <br /> groundwater sampling fraction, moist, very stiff to hard, low plasticity <br /> to 24 feet Saturated soil conditions within sandy silt at +/- 17— <br /> ' t9 feet Soil sample from 19 5 to 20 feet <br /> Bottom of Boring 20 <br /> feet <br /> 1 <br />