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Advanced BORING LOG <br /> taaw , GeoEnvironmentai, Inc. BOREHOLE NO MW--1 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209) 467-1006 FAX (209) 467-1118 TOTAL DEPTH 45 FEET <br />' Project Proposed EL DORADO APARTMENTS Drilling Co Mitchell Drilling Environmental <br />' <br /> Site Location 2450 South El Dorado Street Rig/Auger Type CME 75HT <br /> Stockton, California Logged By P Dotson <br /> Reviewed By C Lee <br />' Project No AGE-NC-02-0946 Date(s) Drilled 20 February 2003 <br /> Notes MW-1 completed as 2-inch ground water monitormg wel Water level during drilling Page 1 of 2 <br />' Water level in completed well <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br /> ID (per 6") {ppm) Symbol Soil Description Completion Description <br /> 0 <br /> J <br /> CL/ML SILTY CLAY,dark yellowish brown medium <br /> —_ —_ toughness medium plasticity,trace micas,damp,no <br /> MW1-5 6116112 0 petroleum hydrocarbon(HC)odor,100%recovery <br />' <br />' — ML/CL CLAYEY SILT,moderate yellowish brawn, <br /> low toughness,low plasticity,micaceous,trace fine <br /> —10 sand,damp,no HC odor 100%recovery <br />' MW1-10 9112/17 0 Cement gout seal from <br /> 5'to 21'bsg <br />' SC CLAYEY SAND moderate yellowish brown, <br /> approximately 40%fines,fine sand,some silt,damp, <br /> 15 no HC odor 100%recovery <br /> MW1-15 9lI4/20 0 <br />' SC CLAYEY SAND,moderate yellowish brown, <br /> approximately 15%fines,fine to medium sand,damp <br /> —20 to moist,no HC odor, 100%recovery <br />' MW1-20 6111122 0 <br /> LTJML�Shocntained SILTY CLAY <br /> Bentonite seal from 21' <br /> to 23' bsg <br /> --- = CUML SILTY CLAY,moderate yellowish brown, <br /> medium toughness,low plasticity,micaceous,trace fine <br /> —2 5 — _ sand,damp,no HC odor, 100%recovery <br /> MW1-25 12/18!25 0 <br /> CL LEAN CLAY,grayish brown,medium toughness, 03112 sand from 23'to <br /> medium plasticity,moist,no HC odor, 100%recovery 45'bsg <br /> —3 0 Color change in shoe from grayish brown to bluish <br />