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' ENVIRONMENTAL ASSESSORS INC. <br /> 5818 <br /> BORING LOG PAGE 1 OF 2 <br /> - -- - - <br /> F <br /> ROJECT No, PROJECT NAME CALTRANS SHOP 10, STOCKTON SITE LOCATION STOCKTON, CA <br /> 071 05-01-0001 <br /> LOGGED BY DRILL CO DRILLER R O MALtA DRILL RIG Mobile Drill BORING NO <br /> Ramesh Shah VALLEY WELL DRILLING B-61 S818 <br /> DATE DRILLED BORING ELEV REF/DATUM BORING DIAMETER DRIVE WEIGHT <br /> 10-15-93 a" 140 lbs/30" <br /> DEPTH SAMPLE BLOWS/ TIME LITHO This boring log applies only at the specific boring location and at the FID/PID <br />' (FT) LOCA- FOOT LOGY time the boring was drilled The descriptions on this log are not VAPOR <br /> TION U S C S warranted to be representative of subsurface conditions at other READ <br /> locations or times ING <br /> DESCRIPTION (PPM) <br /> LITHOLOGY, COLOR, GRAIN SIZE SORTING/GRADING DENSITY <br /> HARDNESS, MOISTURE <br /> -0 800 2"3 asphalt gravel pavement 0 in <br /> 15 830 no recovery Brea- <br /> thing <br /> - zone <br /> 5 5 ----- 1021 845 ML Gray clayey SILT with little sand, moist 25 <br /> 10 10---- 711 900 ML Light brown medium stiff clayey SILT mast <br /> v Y 10 <br /> 15 15--=' 711 905 CL/ML Light brown medium stiff silly CLAY, most 2 <br /> -20 20--- 913 910 CL Light brown medium stiff silly CLAY with trace sand, moist 8 <br /> 25 25---- 815 915 CL Light brown sitly CLAY with trace sand, moist 10 <br /> Light brown medium stiff silty CLAY with some sand and trace gravel <br /> 30 30 5 10 920 CL moist 10 <br /> 35 35---- 59 925 CL Light brown medium stiff silty CLAY, moist 5 <br /> 40 40 - 715 930 CL Light brown silty CLAY, moist 2 <br /> 6 R9/71 51-1 L <br />