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y LOG OF BORING No. B-5 (ow <br /> Is DATE DRILLED: 1115192 ELEVATION: <br /> � $ EQUIPMENT:Adcer with 8-Inch Hollow Stern Auger � <br /> • m Q zee n a <br /> Silty SAND(SC)-loose,moist;dive black(5Y 2/1),very <br /> tine to medium grained <br /> Silty CLAY(CL)-medium stiff,slightly moist,medium brown <br /> (SYR4/4),medium plasticity <br /> C 65 5 Clayey SILT(ML)-medium stiff,sligltlfy moist,moderate <br /> brown(5YR 4/4),low plasticity,minor fine grained sand <br /> H <br /> grading fa pale yellowish brown(10YR 6/2)patches from <br /> yC 65 10 <br /> grading to Silty CLAY(CL)and Clayey SILT(ML)-gypsum <br /> veinlets,bicky <br /> g C <br /> 455 <br /> $ i/S 20-50(6) 12/12 Ctayey SAND(SC)-dense.slightly moist.medium yellowrh <br /> uu brown(10YR 514),sand Is very fine to fine,low plashaty <br /> black mottled laminations 0 17 <br /> cr Cr. 05 <br /> p Silty CLAY(CL)-stiff,slightly moist,dark yellowish brown <br /> (10YR 4/2),medium plasticity,gypsum velniets from 16'-14' <br /> C <br /> 635 20 petroleum odor <br /> Silty CLAY(CL)-as above,dark greenish gray(5G 4/1), <br /> slight petroleum odor <br /> C 52 Sandy dry lenses Cti 23 5 feet,Increasing sand content with <br /> 2/S 25 50(8 12112 depth @ 2C.petroleum odor <br /> Silty CLAY(CL)-as above,interbedded with Silty Sand <br /> (SC), fine to medium grained,lighter In Dolor(due to white <br /> quartz-like crystals,rounded grains),stronger petroleum <br /> odor <br /> C 30 <br /> r <br /> T <br /> 0 SAND(SW)-loose,wet to very moist,dark greenish gray 03 <br /> 0 0 1 (5GY 4/1),fine to coarse,well graded,subrounded,strong <br /> o 0 petroleum odor <br /> C 63 0 <br /> Silty CLAY(CL)-very stiff,moist with wet fractured <br /> seams,dark greenish gray(5GY 411),minor coarse <br /> o sands,slight petrolium odor <br /> � C 65 <br /> TD Boring @ 40 feet <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 <br /> MAY CHANGE AT THIS LOCATION WITH THE PASSAGE OF TIME.THE DATA PRESENTED IS A SIMPLIFICATION OF ACTUAL CONDITIONS ENCOUNTERED <br /> PROJECT NO <br /> PRELIMINARY CLOSURE REPORT 92-1177101 30 <br /> rTHE� STOCKTON SCAVENGER ASSOCIATION� MARK DRAWING NO <br /> ib GROUP,INC. STOCKTON, CALIFORNIAM A <br /> ENGINEERS & GEOLOGISTS <br /> w <br />