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Wright Environmental Services, Inc., CA Exploratory Boring Log <br /> Project No.4509 BORING NO.MW-2 Drilling Method:8"Hollowstem Page 1 of i <br /> Logged by:CMP Date:Dec.11,2008 BOREHOLE COMPLETION: <br /> Client:City of Tracy Well Installed:2"dla.Scb.40 PVC <br /> Location:99 W.6th Street 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:1st Enc:15-16'(§11:20 Static:no meastxen"M Top Sand Pack:8' Top Bentonite:6' <br /> d <br /> Grout Seal,6.5'to surface Vault Box <br /> Sample PID Blow E Well Detail/ <br /> No. /OV Count UO) Depth Lithology Log Backfill <br /> —_Asohalt <br /> ML-Sandy SILT,yelwA cA brown 10YR4/4,slight plasticity,f_-med.sand 35%, <br /> massive,lkrrL damp <br /> m <br /> L <br /> MW-2 5 <br /> @ 5' 0 6 ML-Cfayar SriL dot^tdowish brown 10YR4/6,slight to low plasticity, <br /> v.f.sand 2M wR tUr toftng,rare crs sand,firm,damp. <br /> MW-2 10 <br /> 0 11 Same as Mm,be*ant ion oxide mottles throughout,stiff,damp. <br /> SW-SAM %V. V as.sand 90%,fines 10%,slight odor,massive, <br /> 15 med.ds+amdmoo ta4w-w testurated. <br /> MW-3 40 22 <br /> @ 16.5- <br /> WA 2U <br /> @ 21,5' 46 5 <br /> SF-SAM vg*~ wwaw 10YR5I4,nonplastic fines 5-10 <br /> f.sent a*10 Uft 00*sdor,contalns 2-inch thick sandy silt interbeds, <br /> loose,astNA&q <br /> MW-5 25- / <br /> @ 26.5' y SM-ML-SW SAVO t!�l SILT,yellowish brown 1 GYR5/4°;nodpldiic fines <br /> vary 2044 t owd was=00-80%,massive,loose,very moist, Y N <br /> 6'> <br /> Bottom of Boring=26.6'feet <br /> dbw plug`s'wabbe`d intasampfeg.tiote. <br /> >�a ► : - 'c �� Reviewed by PG <br />