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"y Advanced BORING LOG
<br /> GeoEnvironmental, Inc. BOREHOLE NO MW-20
<br /> 837 Shaw Road, Stockton, CA 95215
<br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH +70'
<br /> Project Geweke Date(s) Drilled 13 Apn12004
<br /> Project No AGE-NC-95-0109 Page 2 of 3
<br /> Depth Sample Blows PID Sod tJSCS Class and Well Well
<br /> 1D (per 6") (ppm) Symbol Sod Description Completion Descnption
<br /> O GM Red brown,damp,CONGLOMERATE 2-3 cm
<br /> cobble maximum with silty clay matrix,well-rounded
<br /> 0 O to sub-angular,no HC odor
<br /> -25 O O
<br /> NO SAMPLE No recovery
<br /> Cement grout seal from
<br /> 5'to 46'bsg
<br /> —_—_= SM Red brown,damp,SILTY SAND,15%silt,fine
<br /> -30—
<br /> sand,trace gravel,no HC odor
<br /> i
<br /> SP Gray brown,damp,fine SAND,no fines,no HC
<br /> odor
<br /> NO SAMPLE No recovery
<br /> CL Tan-green to red-brown(oxidation),damp,SILTY
<br /> 0 CLAY,visible colored bedding changes,no HC odor
<br /> -35
<br /> NO SAMPLE No recovery
<br /> Cement grout seal from
<br /> 5'to 46'bsg
<br /> 0 = — SM Red brown to gray brown,damp,fine visibly
<br /> ---- bedded,SILTY SAND,very fine sand,powdery,lots of
<br /> -40— micas,no HC odor
<br /> CL Tan-green to red-brawn(oxidation),damp,SILTY
<br /> CLAY,visible colored bedding changes,no HC odor
<br /> NO SAMPLE No recovery
<br /> SP Gray to yellow gray,damp,poorly graded medium
<br /> SAND,micas,some fine sand,no fines,no HC odor
<br /> -45— SM Green brown to red brown with black spots,damp,
<br /> SILTY SAND, 15%fines,fine to medium sand,no HC
<br /> odor
<br /> Bentonite seal from 46'
<br /> NO SAMPLE No recovery to 48' bsg
<br /> SM Green brown,damp,SILTY SAND, 10%silt,
<br /> gravel and partially cemented pieces,grades finer down
<br /> to next bed,no HC odor
<br /> ML Green brown,damp,CLAYEY SILT,5%sand,
<br /> -50 trace gravel,oxidation stains,tiny visible micas,no HC
<br /> odor
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