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Light, Air and Space Cons�vvjction, San Jose, CA tw ploratory Boring Log <br /> Project No. 0616 BORING NO. MW-3 Drilling Method: 8" Hollowstem Page 1 of 1 <br /> Logged by: CMP Date: Oct. 7, 2008 E30REHOLE 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 Back: 8' Top Bentonite:7' <br /> �. Grout Seal: 8'to surface Vault Box TOC 16.42'MSL <br /> m <br /> Sample PID Blow <br /> E Depth CL Welt Deta's3f <br /> No. /OV Count Lithology Log Backfill <br /> V <br /> ML-Sandy SILT, light gray 2.5Y7/2, silt 80% and nonplastic, v.f. to f. sand 20%, %n <br /> locally weakly cemented from 2 to 2 feet,firm, damp. <br /> V <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°x6 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 /> L• <br /> MW-3-1 15 <br /> @ 15' 75? SP- SAND, gray 2.5YN6/, f. to med. sand 90-95%,fines 5-10% are nonplastic, <br /> massive, micaceous throughout, very dense, saturated. <br /> MW-3-1 20 Same as above,f. to ers. sand, massive, very dense, saturated, minor flowing. <br /> @ 20' - 6022 <br /> 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 /> v <br /> LA <br /> i' Reviewed by PG <br />