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<br /> Advanced BORING LOG
<br />' GeoEnvironmental, Inc. BOREHOLE NO MW-3
<br /> 837 Shaw Road, Stockton, CA 95215
<br /> (209) 467-1006 FAX (209)467-1118 TOTAL DEPTH 45 FEET
<br /> IProject Proposed ELDORADO APARTMENTS Drilling Co Mitchell Drilling Environmental
<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
<br /> Date(s) Drilled 20 February 2003
<br /> Notes MW-3 completed as 2-inch ground water monitoring well sz Water level during drilling Page 1 of 1
<br />' = Water level in completed well
<br /> Depth Sample Blows PID Sod USCS Class and Well Well
<br />' in (per 6") (ppm) Symbol Soil Description Completion Description
<br /> 0
<br /> 1
<br /> MUCL CLAYEY SILT,dusky yellowish brown,low
<br />' toughness,low plasticity,dry to damp,no petroleum
<br /> -5 MW3-5 6/9/13 0 hydrocarbon(HC)odor, 100%recovery
<br />' ML SILT,moderate yellowish brown,low toughness,
<br /> low plasticity,micaceous,approximately 10%fine
<br /> 10 MW3-10 7/12/16 0 sand dry,no HC odor, 100%recovery Cement grout seal from
<br /> 5'to 21'bsg
<br />' ML SILT,moderate yellowish brown low toughness,
<br /> -15 low plasticity,micaceous,approximately 10%fine
<br /> MW3-15 9/11/17 0 sand,dry,no HC odor, 100%recovery
<br />' CLIML STLTY CLAY,moderate yellowish brown,
<br /> medium toughness,medium plasticity,trace micas,
<br /> -20— MW3-20 9116117 0 moist,no HC odor,80%recovery
<br /> Bentonite seal from 21'
<br /> to 23' bsg
<br /> SP POORLY GRADED SAND,moderate yellowish
<br />' -
<br /> 25— brown,trace fines,fine sand,moist,no HC odor,
<br /> MW3-25 12/14/18 0 100%recovery
<br /> CL Shoe contained LEAN CLAY
<br />' CUML SILTY CLAY,grayish brown,medium 43/12 sand from 23'to
<br /> toughness,medium plasticity,trace micas,moist,no 45'bsg
<br /> 30— MW3 30 10/12/16 0 HC odor, 100%recovery
<br />' CUML SILTY CLAY,olive gray,medium
<br /> toughness,low plasticity,trace micas,moist,no HC
<br /> -35—
<br /> 3 5 MW3-35 12/15/19 0 odor,100%recovery
<br />' Screened interval from
<br /> ML SILT,dark olivegray,low toughness,low 25'to 45'bsg
<br /> plasticity,approximately 10 to 15%fine sand,
<br />' 40— MW3-40 9/11/15 0saturated,no HC odor,100% recovery
<br /> CL LEAN CLAY,olive gray,medium toughness,
<br />'
<br /> 45— medium plasticity,some silt,saturated,no HC odor,
<br /> MW3-45 - 0 100%recovery Cap at 45'
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