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PROJECT NO.:160642 DATE DRILLED: 6/12/08 NORTHING: - <br /> LOCATION: BNSF CCT Stockton Railyard LOGGED BY: M. Sellwood E - <br /> TOP OF CASING ELEVVAATITIOONN:: - <br /> 1645 Cherokee Road APPROVED BY: K. Woodburne, PG TOP OF PVC ELEVATION: - <br /> Stockton,California DRILLING CO.: Boart Lonqyear GROUND SURFACE ELEVATION: - <br /> DRILLING METHOD: 6-inch Sonic <br /> SAMPLER TYPE: 10-ft. Continuous-Core Barrel WELL <br /> } > TOTAL DEPTH: Boring - 83.0 ft.; Well-67.0 ft. > <br /> C. M 0' s o CONSTRUCTION <br /> o >> L_ ° DEPTH TO WATER: 50.0 ft. �, o DETAIL <br /> D <br /> UU o <br /> U = <br /> Q it can o t= DESCRIPTION <br /> 40 -B-13@40' <br /> 40 Neat <br /> SILT(ML)(continued):very stiff. Cement <br /> Grout <br /> 2-inch <br /> o Schedule <br /> 40 PVC <br /> 45 -B-13@45' <br /> ML 45 Bentonite <br /> B-13 @ 45' No.3 <br /> a <br /> Monterey <br /> @ 47':soft. Filter Sand <br /> Pack <br /> @ 49':stiff. 2-inch <br /> ° 50 _ 50 Schedule <br /> o s.o/soSAND(SP):Yellowish brown(10YR 5/6),5%fines,95%medium-grained sand, 40 PVC <br /> nonplastic,loose,wet. SP 0.020 Slot <br /> @ 52.5':95%fine-grained sand. __N <br /> SILT(ML):Yellowish brown(10YR 5/4),95%fines,5%fine-grained sand,low <br /> plasticity,stiff,dry. <br /> ° 55 55--' <br /> @ 56':moist. <br /> 0 <br /> o mo/10.0 <br /> @ 59':trace mica present in soil. ML <br /> 60 60 <br /> 0 <br /> ° -@ 64':wet. ' <br /> 65 SAND(SM):Yellowish brown(10YR 5f4),20%fines,80%fine-grained sand, SM 65 <br /> low plasticity,medium dense,moist. _ <br /> ° SAND(SP):Dark yellowish brown(10YR 4/4),5%fines,95%fine-grained _ End Cap <br /> sand,nonplastic,loose,wet. SP <br /> ° — <br /> a ,o.o/wo SILT(ML):Brownish yellow(10YR 6/6),90%fines, 10%fine-grained sand,low '- <br /> plasticity,very stiff,dry. <br /> 70 70—"..:.- <br /> 0 " Neat <br /> Cement <br /> -@ 73':medium stiff,moist. ML Grout <br /> Backfill <br /> 0 75 75 <br /> ° SAND(SP):Yellowish brown(10YR 5/4),5%fines,95%medium-grained sand, <br /> o so/s.o nonplastic,loose,wet. gp <br /> SILT(ML):Yellowish brown 60YR 5/6),90%fines, 109/.fine-grained sand,low <br /> 80 plasticity,medium stiff,moist. ML 80 ' <br /> TRC MONITORING WELL INSTALLATION LOG B-13/MW-6 <br /> PAGE 2 OF 3 <br />