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Wright Environmental Services, Inc. Tracy, CA Exploratory Boring Log <br /> Project No.4529 BORING ND_MW-3 Drilling Method:8"Holfowslem Page 1 of 1 <br /> Logged by: CMP Date:Feb 2,2009 BOREHOLE COMPLETION: <br /> Client:City of Tracy Well Installed:2'dia.Sch.40 PVC <br /> Location:Boyd Service Center Total Depth:26.5' Casing Depth:25' <br /> 560 N.Tracy Blvd.,Tracy Screen Length:15' Slot Size:0.020 <br /> Permit.,SJC E14D 55563 Blank Length: 10' Sand Pack:#3 <br /> Water Levels: 1st Enc:14.15"?@ 09:15 Slatic:14.5'@ 09:30 Top Sand Pack:t3' Top Bentonite:6' <br /> _o <br /> Grout Seal:6'to Surface Vault Box <br /> a Well Detail/ ' <br /> Sample PID Blow a Depth Llthole Lo Backfill <br /> No. 1OV Count to 9y $ <br /> w <br /> s hall Pavement <br /> m <br /> ML-Sandy SILT,brownish yellow 10YR616,slight plasticity,f.sand 30%.soft to firm, <br /> co <br /> damp. <br /> MW-3-1 5 �" <br /> @ 5' 0.6 4 Same as above,soft to firm,damp. <br /> MW-3-2 10 <br /> 01V 2-5 5 <br /> Some as above,sand 20-25%,massive,soft to firm,damp to moist at 10.5 feet. <br /> MW-3-3 Q 15 <br /> Q 15' 17 2 <br /> SC-SP-Clayey SAND to SAND,gray 10YR511 with stains, 15%fines slightly plastic, <br /> f_sand 85%,massive,loose,saturated by 15 feet.thin Clayey Sand bed at 16.5 feet <br /> stained gray. <br /> MW-3.4 20 <br /> @ 20' 5 4 ML-Clayey SILT,yellowish brown I OYR514,low plasticity,v f.sand 10%,crudely <br /> bedded,soft.moist. <br /> SC-Clayey SAND,yellowish brown 10YR514,low plasticity fines 20%.f.sand 80%, <br /> massive,soft,saturated;may contain thin silt beds- <br /> MW-3-5 25- <br /> (P 25' 2 push ML-Sandy SILT,yellowish brown 10YR516,slight plawicifl) ls7 °k, <br /> f.sand 30-35%,massive,soft,very moist. <br /> ttNof <br /> driller swa cla lu i j 'ampler hole_ <br /> V <br /> r <br /> Reviewed by PG <br />