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Advanced BORING LOG
<br /> GeoEnvironmental, Inc. BOREHOLE NO MW-15B
<br /> c 837 Shaw Road, Stockton, CA 95215
<br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 70 FEET
<br />' Project WEST CLAY PROPERTIES Date(s) Drdled 13 November 2002
<br /> Project No AGE-NC-96-0235 Page 2 of 2
<br />' Blows PID Soil
<br /> Depth Sample USCS Class and Well Wel!
<br /> ID (per 6") (ppm) Symbol Soil Description Completion Description
<br /> I
<br />' _= SM SILTY SAND,approximately 40%fines,fine
<br /> -35— sand,saturated,gray,no HC odor, 100%recovery
<br /> MWI5B-35 4/10127 0
<br /> 1
<br />' SP POORLY GRADED SAND,fine sand,light
<br /> _
<br /> 40— yellowish brown,damp
<br /> M W 1513-40 14/2.0/2] 0
<br /> ML CLAYEY SILT,medium toughness,low
<br /> plasticity,damp,bluish gray,no HC odor
<br />'
<br /> -57 MW 1513-45 7120128 0 CL SILTY LEAN CLAY,medium toughness,medium
<br /> plasticity,trace fine sand,damp,bluish gray,no HC
<br /> odor,70%recovery
<br /> CL LEAN CLAY,medium toughness,high plasticity,
<br /> -5 0 MW15B�0 i5l50 0 dam,bluish gray,no HC odor,70°10 recovery
<br />'
<br /> for 6"
<br />' CL LEAN CLAY,medium toughness,high plasticity,
<br /> -55— damp,bluish gray,no HC odor,70%recovery
<br /> MW15121-55 5130150 0
<br /> for 6" CL SANDY CLAY,approximately 40%fine sand,
<br />' dam,dark grayish brown,no HC odor,40%recovery
<br /> CL SILTY CLAY,medium toughness,medium
<br /> 6 0 plasticity,approximately 10%fine sand,damp,no FIC
<br /> MW1513-60 15150 0 or,50%recovery
<br /> for 6"
<br /> Bentonite seal from 60'
<br /> to 63' bsg
<br /> SM SILTY SAND,approximately 30%fines,fine
<br /> _65 - sand,saturated,gray,no FIC odor,100%recovery
<br /> MW 15B-65 4/7/23 0 #3 sand from 63'to 70'
<br /> bsg
<br /> Screened interval from
<br /> 65'to 70'bsg
<br /> SP POORLY GRADED SAND,approximately 5%
<br /> _7 O fines,fine sand,saturated,no HC odor
<br /> MWISB-70 --- 0 Cap at 70'
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