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LLight, Air and Space Const; tion, San Jose, CA Kvw ;loratory Boring Log <br /> Project No. 0616 BORING NO. MW-1 Drilling Method. 8" Hollowstem Page f 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: 23' Casing Depth: 21' <br /> Manteca, CA Screen Length: 10' Slat Size: 0.020 <br /> Permit: SJC EHD 0055577 Blank Lengths: 11' Sand Pack:#3 <br /> Water Levels: 1st Enc 15'@ 08:55 Static: 11,8'@?09:06 rising Top Sand Pack: 9' Top Bentonite: 8' <br /> m <br /> Grout Seal: V to Surface vault box TOC 16.62' MSL <br /> Sample PID Blow Well Detaitl <br /> l No. /OV Count Depth Lithology Log Backfill <br /> ML-Sandy SILT, light gray 2.5Y7.2, nonplastic, very weakly cemented, <br /> L F7 f.-mad, sand 30%,firm to hard. <br /> 1 MW-1-1 5 SM-Silty SAND, light grayish brown 2.5Y6/2, nonplastic, f.-mad. sand 60%, <br /> L @ 5' 4 silt 40%, locally slightly cemented, loose, moist; inc.sand to 80%, contains <br /> 10-inch thick silt interbed at 9 feet. <br /> MW-1-1 0 <br /> L@ 10' - 9 � <br /> ML-SM- Interbedded Sandy SILT and Silty SAND, light grayish brown 2,5Y6/2, <br /> ML-slighlty plastic clay<10%; SM-sand f.to mad. up to 80%, locally 90%, <br /> and moist to saturated by 15', medium dense, moist.to saturated. <br /> MW-1-1 15 <br /> @ 15' - 16 Same as above,very thin siilt beds, medium dense, saturated. j <br /> Incerease in sand, micaceous, medium dense, saturated; sand becomes f. to <br /> crs, then transition from 20 to 21 feet to underlying stratum. <br /> MW-1-1 FA 20 <br /> @ 20' - 16 <br /> ML-Clayey SILT,olive brown 2.5Y414, slightly plastic, silt/clay fines 75 <br /> MW-1-1 - 20 f. sand 25%,,possible caliche, stiff, damp. <br /> @ 21.5' <br /> Bottom of Boring=23 feet, slight flowing <br /> swab clay plug into sampler hole. <br /> i <br /> I <br /> h< � <br /> w <br /> Reviewed by PG <br /> t� <br />