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Advanced BWNG LOG
<br /> GeoEnvironmental, Inc.
<br /> -- � BOREHOLE NO.. MW-9
<br /> 7
<br /> 837 Shaw Road, Stockton, CA 95215
<br /> �J (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 /> = 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 MW9-5 10-14-23 0 CL:Yellow-Orange Brown to Dark Yellow-Orange .5'to 26'bsg.
<br /> Brown,Dry,SILTY CLAY;medium to high plasticity,
<br /> medium toughness,hard consistency,no hydrocarbon
<br /> (HC)odor.
<br /> -10 MW9-10 7-14-21 0 CL:Yellow-Orange Brown,Dry,SILTY CLAY;
<br /> medium to high plasticity,medium toughness,stiff
<br /> consistency,no HC odor.
<br /> ML:Dark Brown,Dry,SANDY SILT;fine poorly
<br /> -15 MW9-15 10-20-34 0 graded sand,low plasticity,high toughness,very hard
<br /> consistency,no HC odor.
<br /> ML:Dark Yellow-Orange Brown D SILT;low to
<br /> -20 MW9-20 7-17-31 0 g Dry,
<br /> medium plasticity,low toughness,no HC odor.
<br /> -25 MW9-25 13-29-46 0 SM:Dark Yellow-Orange Brown,Dry,SILTY SAND;
<br /> fine poorly graded,no HC odor.
<br /> Bentonite seal from 26'to
<br /> 28' bsg.
<br /> -30 MW9-30 13-15-20 0 CL:Dark Brown,Slightly Moist,SILTY CLAY;
<br /> medium to high plasticity,high toughness,no HC odor.
<br /> -35 MW9-35 12-14-19 0 CL:Yellow-Brown,Slightly Moist,SILTY CLAY;high
<br /> plasticity,medium toughness,stiff to hard consistency, #2/12 sand from 28'to
<br /> no HC odor. 50'bsg.
<br /> -40 MW9-40 16-23-29 0 SM:Yellow-Orange Brown,Wet,SILTY SAND;fine,
<br /> poorly graded,no HC odor. - Screened interval from
<br /> 30'to 50'bsg.
<br /> -45 MW9-45 7-22-30 0 ML:Yellow-Orange Brown,Dry,SILT;low plasticity
<br /> and toughness,stiff consistency,no HC odor.
<br /> -50 MW9-50 28-2-56 0 CL:Yellow-Orange Brown,Saturated to Dry,SANDY Cap at 50'.
<br /> CLAY;fine,poorly graded sand,medium plasticity,
<br /> high toughness,hard consistency,no HC odor.
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