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Advanced B(OING LOG
<br /> GeoEnvironmental, Inc.
<br /> BOREHOLE NO.: MW-8
<br /> r-
<br /> 7 837 Shaw Road, Stockton, CA 95215
<br /> ......
<br /> / (209)467-1006 FAX: (209)467-1118 TOTAL DEPTH: 50 feet
<br /> Project: RALPH SQUARE-BUI Drilling Co.: Mitchell Drilling Environmental, Inc.
<br /> Site Location: 2122 South Airport Way Rig/Auger Type: CME75
<br /> Stockton, California Logged By: REN
<br /> Reviewed By: WRL
<br /> Project No.: AGE-NC-07-1537
<br /> Date(s) Drilled: 20 March 2008
<br /> Notes: 4 Water Level Before Drilling
<br /> i Water Level After Drilling
<br /> Depth Sample Blows PID Soil USCS Class and Well Well
<br /> ID (per 6") (ppm) Symbol Soil Description Completion Description
<br /> 0
<br /> Well cover cristy box
<br /> Cement grout seal from
<br /> –5 — MW8-5 6-9-17 0 CL:Dark Browy to Yellow-Orange Brown,Dry,SILTY .5'to 26'bsg.
<br /> CLAY;medium plasticity,high toughness,hard con
<br /> sistency,no hydrocarbon(HC)odor.
<br /> –10 MW8-10 9-19-30 0 CH:Yellow-Orange Brown,Dry,CLAY;high plasticity
<br /> and toughness,stiff to hard consistency,no HC odor.
<br /> –15 MW8-15 20-2-50 0 CL:Dark Yellow-Brown,Dry,SILTY CLAY;medium
<br /> to high plasticity,high toughness,hard consistency,no
<br /> HC odor.
<br /> CL:Yellow-Brown,Dry,SILTY CLAY;medium to
<br /> –2 0 MW8-20 19-21-23 0 high plasticity,low to medium toughness,no HC odor.
<br /> –25 MW8-25 28-32-48 0 ML:Dark-Borwn,Dry,SILT;low plasticity,medium
<br /> toughness,hard consistency,no HC odor.
<br /> Bentonite seal from 26'to
<br /> 28' bsg.
<br /> -30 MW8-30 8-24-28 0 CL:Dark Yellow-Orange Brown,Dry,SILTY CLAY;
<br /> low to medium plasticity,high toughness,hard
<br /> consistency,no HC odor.
<br /> –35 MW8-35 8-10-20 0 CL:Yellow-Orange Brown,Dry,SILTY CLAY;
<br /> medium to high plasticy,medium toughness,stiff _ #2/12 sand from 28'to
<br /> consistency,no HC odor. 50'bsg.
<br /> –40 MW8-40 9-13-20 0 CL:Dark Brown,Dry,SILTY CLAY;medium to high
<br /> plasticity,igh toughness,stiff to hard consistency,no – Screened interval from
<br /> HC odor. 30'to 50'bsg.
<br /> –45 MW8-45 12-34-42 0 CL:Dark Yellow-Orange Brown,Moist to Saturated,
<br /> SILTY CLAY;high plasticity and toughness,no HC
<br /> odor.
<br /> –50 MW8-50 17-28-40 0 CL:Dark Yellow-Orange Brown,Saturated to Moist, Cap at 50'.
<br /> SILTY CLAY;high plasticity and toughness,no HC
<br /> odor.
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