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' Advanced BORING LOG <br /> GeoEnvironmental' Inc. <br /> BOREHOLE NO MW-24 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 30 FEET <br /> Project Chase Chevrolet-Van Buren Drilling Co West Haz Mat <br /> Site Location 424 North Van Buren Street Rig/Auger Type CME75-HT <br />' Stockton, California Logged By P Dotson <br />' <br /> Project No AGE-NC-95-0143 Reviewed By N Henderson <br /> Date(s) Drilled 15 March 2001 <br /> Notes Total depth of boring 30 feet below surface grade Born = Water level during drilling <br /> completed as two-mch Page 1 of 1 <br />' p ground water monitoring well s Water leve! m completed well <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br />' ID (per 6") (ppm) Symbol Soil Description i Completion Description <br /> 0 <br /> We11 cover cnsty box <br /> 1 <br /> CL Dark yellowish brown,CLAY,high plasticity,very Cement grout seal from <br />' — stiff to hard,damp 5'to 6'bsg <br /> -5 I <br /> MW24-5 13/13/25 p 7 <br /> 1 <br />' Ut ri i Bentonite seal from 6 <br /> —— to 8' bsg <br /> ML Moderate yellowish brown,SILT approximately <br /> 200%fine sand,very stiff,damp <br />' -10 MW24-10 8/13/18 — <br />' — SM Moderate yellowish brown,SILTY SAND,fine <br /> sand,approximately 30%fines,medium dense to very <br /> MW24-15 11/13/37 dense,moist,no petroleum hydrocarbon(HC)odor <br /> #2/12 sand from 8'to <br /> 30'bsg <br />' I SP-SM Moderate yellowish brown,POORLY <br /> —T GRADED SAND with SILT,fine sand,approximately <br /> 2 0 —MW24-20 i2/20/18 10%fines,dense,saturated <br />' -- <br /> _ Screened interval from <br /> I 10'to 30'bsg <br /> I <br /> SP Gray,POORLY GRADED SAND,fine sand, <br /> -25 MW24-25 18/50-6 --- approximately 5%fines,very dense,saturated <br /> No sample recovery,heaving sands <br /> -3 0 MW24-31 — Cap at 3 0' <br /> -- <br />