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ENVIRONMENTAL ASSESSORS, INC_ <br /> MWta <br /> BORING LOG PAGE 1 OF 3 <br /> — -- — — <br /> PROJECT NO PROJECT NAME CALTRANS SHOP 10, STOCKTON SITE LOCATION STOCKTON,CA <br /> 0071 05 01 0001 <br /> LOGGER BY DRILL CO DRILLER R O MALIA DRILL RIG Mobile Drill BORING NO MW 14 <br />' NORMAN SACRO VALLEY WELL,DRILLING B 61 <br /> DATE DRILLED BORING ELEV REF/DATUM BORING DIAMETER DRIVE WEIGHT <br /> 10-1493 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- 6" LOGY time the boring was the descriptions on this log are not warranted to VAPOR <br />' TION (asaU S C S be representative of subsurface conditions at other locations or times READ- <br /> pier)r) DESCRIPTION ING <br /> LITHOLOGY, COLOR, GRAIN SIZE, SORTING/GRADING, DENSITY, (PPM) <br /> HARDNESS, MOISTURE <br />' -0 — 800 2'-3'asphalt gravel pavement 0 in <br /> 1 25--- 10 10 12 a m SP Light brown medium dense fine SAND non-graded, moist underlain brea <br /> 830 with gray silty CLAY with graded sand and gravel thing <br /> a m zone <br /> Gray stiff CLAY, some silt moist, highly plastic 20 <br /> 5 5 - 5-11-21 930 CL/Cl-I 350 <br /> - Gray and light brown, very stiff CLAY with some silt and gravel, 350 <br /> - 10 <br /> 10- 3521 950 CL moist, plastic <br />' 15 1$ 7111 looa CIL Light brown medium stiff CLAY with some silt moist 200 <br />' - 0 <br /> brea- <br /> thing <br /> zone <br /> -20 20---- 12-1723 10 15 CL Light brown medium stiff silty CLAY with little fine sand, dry <br /> 10 <br />' Light brown medium stiff silty CLAY, dry, little sand 25 <br /> -25 25----- 10 20 25 1033 CL <br />' 50 <br /> Light brown medium stiff silty CLAY,dry, little sand <br /> -30 30 8 1523 1045 CL <br /> - Light brown medium stiff silty CLAY moist 15 <br /> 35 35____ 88 12 1055 CL <br /> 1 R9/71 51 1 L <br />