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ENVIRONMENTAL ASSESSORS, INC. <br /> BORING LOG PAGE 1 OF 2 <br /> MW13 W <br /> i <br /> PROJECT NO, PROJECT NAME CALTRANS SHOP 10, STOCKTON SITE LOCATION STOCKTON. CA <br /> 0071-05 01-0001 <br /> LOGGED BY, DRILL CO DRILLER R O MALIA DRILL RIG Mobile Drill BORING NO MW13 <br /> Ramesh Shah VALLEY WELL DRILLING B-61 <br /> DATE DRILLED, BORING ELEV REF/DATUM BORING DIAMETER DRIVE WEIGHT <br /> 10-1393 10' 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 fog 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 ----- 900 CL 0 25 it asphalt, gravel base <br /> Dark gray medium stiff CLAY, damp <br /> Is --- 5 8-11 940 <br /> -5 5 -- 8 13 19 950 Light brown, CLAY, dry blocky 00 <br /> 10 10 8 28 40 1003 CL Light brown CLAY, dry 06 <br /> - 15 15- 10 12 18 1010 CL Light brown CLAY, medium stiff, plastic, moist <br /> -20 20 --- 8 12 15 10 16 CL/ML Light brown, stiff silty CLAY with some fine sand moist <br /> 1 25 25---- 8 19 22 1028 CL Brown CLAY, stiff, medium plasticity dry 02 <br /> 30 30--_ 9 1520 1034 CL Brown silty CLAY, stiff, dry 10 <br /> 35 35- 5-814 1040 CL Brown CLAY with trace sand stiff, dry bulky 100 <br /> 21 119/71 51 1L <br />