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' ENVIRONMENTAL ASSESSORS <br /> INC. <br /> BORING LOG PAGE i OF 1 <br /> sBzz - - - <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 MALTA DRILL RIG Mobile Drill BORING NO <br /> Norman Sacro/Ramesh VALLEY WELL,DRILLING B-61 S8-22 <br />' Shah <br /> DATE DRILLED BORING ELEV REF/DATUM BORING DIAMETER DRIVE WEIGHT <br /> 10-2093 13" 140 lbs/30" <br /> DEPTH SAMPLE BLOWS/ TIME LITHO- This boring fog applies only at the specific boring location and at the FID/PID <br /> (FT) LOCA- 6 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 limes ING <br /> DESCRIPT[ON (PPM) <br /> LITHOLOGY, COLOR, GRAIN SIZE, SORTING/GRADING DENSITY, <br />' HARDNESS MOISTURE <br /> 0 <br /> 1020 CH Dark brown very stiff CLAY,dry to moist medium to high plasticity 36 <br /> 15 - 19-13 10 1025 light brown silty CLAY moist <br />' ---- 08 <br /> 5 5 - - 77-7 1030 CL <br /> _ ----- 04 <br /> 10 10 8 1222 1040 SP Brown medium dense fine SAND with some silt non graded moist <br /> 05 <br /> 15 15---- 7-10-10 1 10 50 ML Light brown medium stiff SILT, moist <br /> 03 <br /> -20 20 - 7 10 10 11 00 SP Brown medium dense fine SAND, non graded, moist <br /> I 02 <br /> 25 25---- 10 15 20 11 07 ML Grayish brown clayey SILT, moist <br /> 02 <br /> 30 30 15 20 30 11 19 CL Light brown medium stiff silty CLAY, dry Low plasticity <br /> 00 <br /> Light brown CLAY, stiff moist, low plasticity Total borehole depth <br /> 35 35 - 8 10 12 11 30 CL 35 It Groundwater not encountered Backfilled with bentonile grout <br /> See Table 3 for details <br /> 14 R9/71 51 1 L <br />