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1 <br /> Advanced BORING LOG <br /> GeoEnvironmental' Inc.' <br /> 837 Shaw Road, Stockton, CA 95215 BOREHOLE NO MW-15B <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 70 FEET <br /> Project WEST CLAY PROPERTIES Drilling Co Mitchell Drilling Environmental <br /> Site Location 639 West Clay Street Rig/Auger Type CME 75 HT <br />' Stockton, California Logged By Paul Dotson <br /> Reviewed By Calvin Lee <br /> Project No AGE-NC-96-0235 Date(s) Drilled 13 November 2002 <br /> Notes Total depth of bonng 70'below surface grade Boring xz Water level during drilling Page 1 of 2 <br />' completed as 2-inch diameter ground water monitoring well m Water level in completed well <br /> Depth Sample Blows PID Sod USCS Class and Well Well <br />' ID (per 6") (ppm) Symbol Soil Description Completion Description <br />' d Well cover cristy box <br /> 1 <br /> ML SILT,some clay,low toughness,low plasticity, <br /> _5 - damp,light yellowish brawn,no petroluem <br />' MW 15B-5 5/6/10 0 hydrocarbon(HC)odor,100%recovery <br /> rML SILT,some clay,low toughness,low plasticity, <br /> 10 dry,light yellowish brown,no petroluem hydrocarbon <br /> MWISB-10 20/50 0 (HC)odor,6011/6 recovery <br /> for 6" <br /> 5M SILTY SAND,approximately 30-40%fines,fine <br /> 77 <br /> -15 sand,damp,moderate yellowish brown,no HC odor, <br /> MWISB-15 11/15/20 0 60%recovery <br /> SM SILTY SAND,approximately 30-40%fines,fine <br /> 2 0 —=— sand,saturated,moderate yellowish brown,no HC <br /> MW15B-20 14/24/34 0 odor,60%recovery Cement grout seal from <br /> 5'to 60'bag <br /> ——_ SM/ML SILTY SAND/SANDY SILT,approximately <br /> - <br /> 25— equal percentages fine sand and fines,saturated, <br /> MW15B-25 14/24/40 0 moderate yellowish brown <br /> SP POORLY GRADED SAND,approximately 5% <br /> fines,fine sand,saturated,no HC odor,100%recovery <br /> SP POORLY GRADED SAND,trace fines,fine to <br /> -30— medium sand,saturated,no HC odor,20%recovery <br /> MW1513-30 11/22/26 0 <br /> I� <br />