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Light, Air and Space Construction, San Jose, CA Exploratory Boring Log <br /> Project No.0616 BORING NO.MW-3 Drilling Method:8"Hollowstem Page i of 1 <br /> Logged by: CMP Date:Oct.7,2008 BOREHOLE COMPLETION: <br /> Client: Dana Well Installed:2"dia.Sch.40 PVC <br /> Location: 19589 McKinley Avenue Total Depth:22' Casing Depth:20.5' <br /> Manteca,CA Screen Length:10' Slot Size:0.020 <br /> Permit:SJC EHD 0055577 Blank Length: 10.5' Sand Pack:#3 <br /> Water Levels: 1st Enc 11.5'@ 13:10 Static: 11.4'@ 13:20 Top Sand Pack:8' Top Bentonite:7' <br /> u <br /> Grout Seal:8'to surface Vault Box TOC 16.42'MSL <br /> Sample PID BlowDepth Well Detail/ <br /> No. IOV Count Lithology Log Backfill <br /> ML-Sandy SILT,fight gray 2.5Y7/2,sift 80%and nonplastic,v.f. to f.sand 20%, <br /> locally weakly cemented from 2 to 2 feet,firm,damp. <br /> MW-3-1 5 <br /> @ 5' - 20 SM-SP-Silty SAND to SAND,light gray 2.5YN7/,f.sand 85-95%,fines vary <br /> 5-15%and are nonplastic,massive, medium dense,damp. <br /> MW-3-1 10 <br /> @ 10, 28 ML-Clayey SILT,dark grayish brown 2.5Y4/2,silt/clay 85%low plasticity,v.f,to f.sand ' <br /> 15%, massive,damp to moist,stiff. <br /> Driller calls water at 11.5 feet,inc.sand,thin sandy beds wet. <br /> MW-3-1 15 <br /> @ 15' - 75? SP-SAND,gray 2.5YN61,f.to med.sand 90-95%,fines 5-10%are nonplastic, <br /> massive,micaceous throughout,very dense,saturated. <br /> _�1 20 Same as above,f.to crs.sand,massive,very dense,saturated,minor flowing. <br /> @ 20' - 60 Driller advances to 22 feet to clear borehole to set casing due to flowing. <br /> Bottom of Boring=22 feet,clear hole <br /> for well construction,flows to 20.5 feet. <br /> Reviewed by PG <br />