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Soil Boring Logs <br /> University of the Pacific <br /> 1081 W Mendocino Avenue <br /> Stockton, California <br /> _Shade interval indicates depth of sample recovered for.laboratory analysis <br /> LOG OF SOIL BORING TP-5 - - - - <br /> Notes Depth Soil Description <br /> Interval (ft) <br /> 715100 0 to 3 Base material for asphalt surface consisting of <br /> compacted gravel withf nes and nderlymg reworked- <br /> 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 /> 4 to 8 Brown-red Clayey Silt[ML],contains occasional <br /> gravel and fine sand, damp, very stiff to hard, low <br /> plasticity <br /> Depth to groundwater <br /> while drilling 18 feet 8 to 12 Brown (yellow-red) Clayey Salt [ML],fine sand and <br /> Water rose in boring varying clay fraction,moist, stiff to very stiff, low <br /> approximately 2 feet plasticity <br /> (to 16 foot depth) 2 0 <br /> hours after drilling Brown Clayey Silt[ML],fine sand and varying clay <br /> fraction,moist, very stiff to hard, low plasticity <br /> Moisture and sand content increases with depth Soil <br /> sample from 15 5 to 16 feet - <br /> Groundwater sampled <br /> Hydro-punch set for <br /> groundwater sampling 6 tci Brown Sandy Silt [ML] and Silty Sand[SM] <br /> to 24 feet (gradational with depth),fine sand and,varying clay <br /> _ __ _ _ _ = _ - - -frac tion,_moist,very_stiff to hard, low-plasticity___ <br /> Bottom of Boring 20 Saturated soil conditions within sandy silt at+/- 18 <br /> - - feet feet Soil sample from 19 5 to 20 feet <br />