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_ LOG OF BORING No. B-1 <br /> y $ Is DRILLED: 11/05/'92 ELEVATION: <br /> Z w 8 � � DATE <br /> m EQUIPMENT: Acker with 8-Inch Hollow Stem Auger <br /> Silty CLAY(CL)-soft,moist dusky yelloWlsh brown(10 YR 3/2). <br /> medium to fine sand,medium plasticity,minor mica <br /> S 18118 Grading to stiif,sightly moist medium brown(5 YR 214),no <br /> sand or mica <br /> Grading to dark yellowish brown(10 YR 412) <br /> S 18118 Minor gravet-sand laminations at 5 feet <br /> S 18/18 Sandy CLAY(CL)-hard,Blighty mots%moderate yellowish <br /> brown(10YR 412),low plasticity,minor gypsum vienlets, <br /> very fine sand <br /> Clayey SAND(SG)-loose to medium dense,slightly moist to <br /> dry,moderate yellowish brown(f OYR 519),fine to very One <br /> C 48/48 grained,block at 9 feet downward increasing mica content <br /> 24, 10 and silty clay(CL)laminations(laminations-blocky,dry,hard) <br /> 3 <br /> C 42142 <br /> 1/S 27-50(61 12112 <br /> g n <br /> As above-increase in Gay content downward,minor black <br /> mottling,olive gray(5 YR 4/1)and moderate yellowish brown <br /> C 60/42 (10 YR 514),with rust staining <br /> Silty CLAY(CL)-stiff,slighty moist moderate bluish gray <br /> (5 B 511),blocky,minor gypsum velnlets <br /> C 48142 Silty CLAY(CL)-hard,dry,moderate yellowish brown <br /> (10 YR 514),blocky with abundent gypsum <br /> S 13-26-50 18/18 <br /> Clayey SAND(SC)-mOlst loose to modefatety loose, <br /> medium bluish gray(5B 511),very fine to fine grained, <br /> petroleum odor, <br /> C 56156 30 <br /> a <br /> n <br /> 60/60 35 1 <br /> C very stiff,Silty CLAY(CL)-v moil moderate Bluish gray <br /> t <br /> rn (58 511),petroleum odor,siighty blocky minor coarse sand <br /> W <br /> g <br /> R s C 60/60 <br /> THIS SUMMARY APPLIES ONLY AT THE LOCATION OF THIS 60RIN13 AND AT THE TIME OF ORILLNG. SLSSURFACE CONDITIONS MAY DIFFER AT OTHER LOCATIONS AND <br /> MAY CHANGE AT THIS LOCATION WITH THE PASSAGE OF TIMF-THE DATA PRESENTED IS A SIMPLIFICATION OF ACTUAL CONDITIONS ENCOUNTERED. <br /> PROJECT NO <br /> PRELIMINARY CLOSURE REPORT 92-117710130 <br /> THE STOCKTON SCAVENGER ASSOCIATION <br /> • MARK STOCKTON, CALIFORNIA DRn`vv11+ No <br /> Mr-3 GROUP,iNC. A-2 <br /> ENGINEERS & GEOLOGISTS <br />