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Wright Environmental Services, Inc., CA Exploratory Boring Log <br /> Project No.4509 BORING NO.MW-3 Drilling Method:8"Hollowstem Page 1 of 1 <br /> Logged by:CMP Date:Dec, 11,2008 BOREHOLE COMPLETION: <br /> Client:City of Tracy Well installed:2"dia.Sch.40 PVC <br /> Location:99 W.6th S~ Total Depth:26.5' Casing Depth:25' <br /> Tracy,CA Screen Length:15' Slot Size:0.020 <br /> Permit:SJC EHD 55561 Blank Length:10' Sand Pack:#3 <br /> Water Levels:ist Errs 141'®13:50 Static:no measurement Top Sand Pack:8' Top Bentonite:6' <br /> Grout Seal:6'to surface Vault Box <br /> Sample PID taloa Depth Well Detail/ <br /> No, /OV CourA Llfhotogy Log Backfill <br /> Asphalt <br /> ML-Sandy Clayey SILT,brown 10YYR4/3,low plasticity,f.sand 250/0, ^�^ <br /> massive,soft,damp. " <br /> w"A A A <br /> A <br /> AAn <br /> MW-3D 5 i <br /> @ 5' SM-ML-Silty SAND to Sandy SILT,brown 10YR413,nonplastic fines up to 50%, "A <br /> vf.I.sand up to 50%.massive,soft to loose,damp. <br /> MW-3 10 <br /> SM-Silty SAND,yellowish brown 10YR5/6,nonplastic fines 30%,vf.to f.sand <br /> 70%,massive,loose damp to moist. <br /> - <br /> i <br /> MW-3 j <br /> @ 16.5' SM-SW-Silty SAND to SAND,yellowish brown 10YR516,nonptstic fines up to 20%, <br /> y f.to crs.sand 80-90%,massive,loose,saturated;contains thin sandy clay <br /> j interbeds at 15-16 feet. <br /> 1 <br /> MW-3 A <br /> @ 21.5` SP-SAND,brown 10YR513,nonplastic fines<51/6,f.to med.sand 95%,loose, <br /> saturated. <br /> i <br /> MW-3 SM-SC-Silly SAND to Clayey SAND,yellowish brown 10YR5/6.1 slight to no <br /> @ 26'5 plasticity,fines 30%.f.to med.sand 70%,loose,very moist to'saturated. <br /> Bottom of Boring-26.6 feet <br /> clay plug b'Wabbed iota satnpl&r hole: <br /> r r <br /> r <br /> �! O `1 <br /> '`N Reviewed by PG <br />