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Advanced BORING LOG <br /> GeoEnvironmental, Inc. BOREHOLE NO VE-2 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> J (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 40 FEET <br /> Project Former CANTEEN CORP Drilling Co Mitchell Drilling Environmental <br /> ISite Location 1500 Shaw Road Rig/Auger Type CME 75 - 10" HSA <br /> Stockton, California Logged By Paul Dotson <br /> Reviewed By N Henderson <br /> Protect No AGE-NC-99-0612 <br /> Date(s) Drilled 26 February 2002 <br /> Notes Total depth of boring 45 feet bsg Boring sz Water level during drilling Page 1 of 2 <br /> completed as nested 2-inch vapor extraction wells Water level in completed well <br /> Sample Blows PID Soil USCS Class andCompletion llWell <br /> Depth ID (per 6") (ppm) Symbol Soil Description A g Description <br /> 0 Well cover cnsty <br />' Asphalt surface,no soil samples from 0 to 13 feet bsg boxes <br /> -5 <br /> Cement grout seal from <br /> 5't,)11bsg <br /> 10— <br /> Bentonite seal from 11' <br /> I — <br /> SM SILTY SAND,approximately 20%fines,fine to 13' bsg <br /> sand,moderate brown,dry,medium dense to dense, <br /> -x 5 VE2A-15 5/7/12 13 60%recovery <br /> #2/12 sand from 13'to <br /> SM/ML SILTY SAND/SANDY SILT,approximately 26'bsg <br /> = equal percentages fine sand and fines,moderate brown, <br /> - 0 VE2A-20 8/12122 12 dry,dense hard,90%recovery <br /> Screened interval from <br /> 15'to 25'bsg <br /> I <br /> -25—I Cap at 25'VE2A-25 12!22139 9 <br /> Bentonite seal from 26' <br /> to 28' bsg <br /> CL SILTY CLAY,medium plasticity,low toughness, <br /> trace of micas,dark yellowish brown,damp,very stiff <br /> 1 -30 VE2A-30 12/26/44 11 to hard, 100%recovery <br /> — #2/12 sand from 28'to <br /> 40'bsg <br /> ML CLAYEY SILT,low plasticity,low toughness, <br /> micaceous,dark yellowish brown,damp,very stiff to <br /> - <br /> 35— VF2A-35 12/28/30 12 hard,70%recovery <br /> Screened interval from <br /> 30'to 40'bsg <br />