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Wright Environmental &. ,vices, Inc., CA `-8xp10rat0ry 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 <br /> Client:City of Tracy BOREHOLE COMPLETION: <br /> Location: 99 W.6th Street Well Installed:2"dia. Sch.40 PVC <br /> Tracy,CA Total Depth:26.5' Casing Depth:25' <br /> Permit:SJC EHD 55561 Screen Length: 15' Slot Size: 0.020 <br /> Water Levels: 1st Enc: 14'(p 13:50 Static: no measurement Blank Length: 10' Sand Pack:#3 <br /> Top Sand Pack: 8' Top Bentonite:6' <br /> Grout Seal:6'to surface Vault Box <br /> Sample PID BlowE Depth <br /> No. /OV Count Lithology Log Well Detail/ <br /> Backfill <br /> v� ML-Sandy Clayey SILT, brawn 10YYR4/3, low plasticity, f. sand 25%, <br /> m <br /> a massive, soft, damp. <br /> - <br /> c <br /> c� <br /> MW-3 5 <br /> 0 push <br /> @ 5' SM-ML-Silty SAND to Sandy SILT, brown 10YR4/3, nonplastic fines up to 50%, <br /> vf. f. sand up to 50%, massive, soft to loose,damp. <br /> MW-310 <br /> 0 2 <br /> @ 11.5' SM-Silty SAND, yellowish brown 10YR5/6, nonplastic fines 30%, vf.to f. sand <br /> 70%, massive, loose damp to moist. <br /> MW-3 15 <br /> 16.5' 0 6 <br /> @ SM-SW-Silty SAND to SAND,yellowish brown 10YR5/6, nonplstic fines up to 20%, <br /> f. to crs. sand 80-90%, massive, loose, saturated;contains thin sandy clay <br /> interbeds at 15-16 feet. <br /> MW 3 20 <br /> 21.5' 0 9 <br /> @ SP-SAND, brown 10YR5/3, nonplastic fines<5%,f.to med. sand 95%, loose, <br /> saturated. <br /> MW-3 25 <br /> @ 26.5' 0 6 SM-SC-Silty SAND to Clayey SAND,yellowish brown 10YR5/6, slight to no <br /> plasticity, fines 30%,f.to med.sand 70%, loose,very moist to saturated. <br /> Bottom of Boring=26.6 feet <br /> clay plug swabbed into sampler hole. <br /> Reviewed by PG <br />