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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 1 of 1 <br /> Logged by: CMP Dale: 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' t <br /> Manteca, CA Screen Length:l0' 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 /> Grout Seal: 8'to surface Vault Box TOC 16.42' MSL <br /> m <br /> Sample PID Blow E Depth Well Detail/ <br /> No. /OV Count m Lithology Log Backfill ' <br /> ML-Sandy SILT, light gray 2.5Y7/2, silt 80% and nonplastic, v.f. to f. sand 20%, <br /> locally weakly cemented from 2 to 2 feet, firm, damp. <br /> ' <br /> 5 <br /> MW-3-1 0 <br /> @ 5' 20 SM-SP- Silty SAND to SAND, light gray 2.SYN7/, f. sand 85-95/o, fines vary <br /> 5-15% and are nonplastic, massive, medium dense, damp. <br /> 10 ' <br /> MW-3-1 _ 28 ��; ML- Clayey SILT, dark grayish brown 2.5Y4/2, silt/clay 85% low plasticity, v.f.to f.sand <br /> ' @ 10' 15%, massive, damp to moist, stiff. ' <br /> Driller calls water at 11.5 feet, inc. sand, thin sandy beds wet. <br /> ' <br /> MW-3-1 i,; 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 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 />