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PROJECT NO.:160642 DATE DRILLED: 6/12/08 NORTHING: <br /> FASTING: <br /> —LOCATION: BNSF CCT Stockton Railyard LOGGED BY: M. Sellwood TOP OF CASING ELEVATION: - <br /> 1645 Cherokee Road APPROVED BY: K. Woodburne, PG TOP OF PVC ELEVATION: - <br /> Stockton,California DRILLING CO.: Boart Longlyear GROUND SURFACE ELEVATION: - <br /> DRILLING METHOD: 6-inch Sonic <br /> SAMPLER TYPE: 10-ft. Continuous-Core Barrel WELL <br /> TOTAL DEPTH: Boring-78.0 ft.; Well.-67.0 ft. <br /> CONSTRUCTION <br /> o CL 0 <br /> Uj DEPTH TO WATER: 65.0 ft� <br /> > > DETAIL <br /> 0 <br /> LL <br /> U) 0 DESCRIPTION <br /> 4040-' Neat <br /> SILT-FILL(ML)(continued). <br /> Cement <br /> Grout <br /> 2-inch <br /> Schedule <br /> ML- <br /> 40 PVC <br /> 0 - Fill Bentonite <br /> —45 45--71 <br /> 3 <br /> Monterey <br /> Filter Sand <br /> Pack <br /> o mopox approximate bottom of fill. .. . <br /> 49': 2-inch <br /> - SAND(SM):Dark yellowish brown(10YR 4/4),25%fines,75%fine-grained <br /> —50 50-- Schedule <br /> sand,medium plasticity,dense,dry. 40 PVC <br /> 0.020 Slot <br /> Sm <br /> 55 -B-12@55' T 55— <br /> T <br /> 0 :11T <br /> Z5 lmoh" TH. <br /> ...IT: <br /> 60 60— <br /> 0 1- <br /> CLAY(CL):Dark yellowish brown(10YR 4/4)�75%fines,25%fine-grained <br /> sand,high plasticity,stiff,moist. <br /> CL <br /> L <br /> 0 <br /> 65 65— <br /> B-12 <br /> SAND(SP):Dark yellowish brown(10YR 4/4),5%fines,95%fine-grained SP <br /> sand,nonplastic,loose,wet. -End Cap <br /> 10.0/tiao SILT(ML):Dark yellowish brown(10YR 4/4),75%fines,25%fine-grained <br /> sand,medium plasticity,medium stiff,moist. <br /> —70 70— <br /> Neat <br /> Cement <br /> ML Grout <br /> Backfill <br /> 0 <br /> —75 75— <br /> a. <br /> r. <br /> 0 <br /> L80 80� <br /> C� TRC MONITORING WELL INSTALLATION LOG B-12/MW-5 <br /> PAGE 2 OF 2 <br />