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_� LOG OF BORING No. B-2 <br /> X- im <br /> x � W � <br /> w _o rn w �- p = DATE DRILLED: April 20,1998 EQUIPMENT: Ci'�AE�S <br /> L) �U I¢ 'LLL HOZ a 12 <br /> rn <br /> m m a ¢ z 0- 0— v t�7 DESCRIPTION: ELEVATION: <br /> . 4"asphalt pavement over sand and gravel base. <br /> COMPACTED FILL [?l <br /> SILTY CLAY (CL) -very dark gray, moist,very hard, <br /> N moderate to high plasticity, no hydrocarbon odor. <br /> ALLL1VIUl1�__t_?i <br /> 35/50-5. 0.0 SILT (ML) -brownish-yellow, slightly moist, hard,trace <br /> caliche, no hydrocarbon odor. <br /> 2 <br /> 10 As above. <br /> 38!50-5" 0.0 <br /> 0 <br /> CL <br /> a� <br /> � o <br /> 24/28/36 0.0 15— SANDY SILT(ML)- reddish-brown, slightly moist to <,.o <br /> Cmoist, hard, estimated 10-15%very fine-grained B A� <br /> . <br /> E sand,trace medium-to coarse-grained sand, no E oOM <br /> hydrocarbon odor. X lom <br /> M <0.05 <br /> 20 <br /> 18l23/30 0.0 , CLAYEY SILT(ML) - reddish-brown, moist, hard, <br /> estimated up to 10%clay, black organic(?)/MnO <br /> staining, no hydrocarbon odor. <br /> Cc <br /> a � <br /> C <br /> 8 <br /> 17/25/31 00 25 SANDY SILT/SILTY SAND (ML/SM) -reddish-brown, G <I.o <br /> slightly moist, hard/dense, estimated up to 50%very B .0.� <br /> fine-grained sand, some black organic (?)/MnO E 4:� <br /> Q <br /> staining,trace caliche, no hydrocarbon odor. X Aw <br /> a <br /> J Q <br /> Q <br /> O Q1 <br /> 19/25/33 0.0 30 SANDY SILT (ML) - reddish-brown, slightly moist, hard, <br /> - estimated up to 10%very fine-grained sand, no <br /> C hydrocarbon odor. <br /> a <br /> z <br /> 17/32/45 0.0 35— As above, except trace clay. <br /> U <br /> Q <br /> O <br /> THIS SUMMARY APPLIES ONLY AT THE LOCATION OF THIS BORING AND AT THE TIME OF DRILLING.SUBSURFACE CONDITIONS MAY DIFFER AT OTHER LOCATIONS AND MAY CHANGE AT THIS LOCATION WITH THE <br /> PASSAGE OF TIME.THE DATA PRESENTED IS A SIMPLIFICATION OF ACTUAL GONDLTIONS ENCOUNTERED. <br /> PROJECT NO. <br /> THE Assessment of Former Underground Storage Tank 96-1113007.80 <br /> MARK Northem California Youth Correctional Center FIGURE NO. <br /> III rim GROUP INC. Stockton, California B-2 <br /> INFRASTRUCTURE&ENVIRONMENTAL ENGINEERING <br />