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Drilling Log <br /> GROUNDWATER Monitoring Well MW-7 <br /> LJL�� TECHNOLOGY <br /> • See Site Map <br /> Chevron - S. Center Stockton Owner Cnevron USa Products Com�anv For Boring Location <br /> Proiect 02070 0068 <br /> Location <br /> 739 South Center St.. Stock!on. CA Proi. No. <br /> Surface Eley. Total Hole Depth 52 ft. Diameter 8rn COMMENTS: <br /> Water Level Initial Static 1.J•7 11. <br /> Top of Casing <br /> Screen: Dia 2 in._ Length 20 ft. Type/Size SCh, QO PVC/0.020 in. <br /> Casing:Dia �----- <br /> 2 in. Length 32 ft. Type Sch. 40 PVC <br /> Pino D-t4 Limited access/Soot <br /> Fill Material *3 Sand Rig/Core <br /> Greoo Dritlino Method Hvdraulicalty Driven <br /> Orifi Co._Butch Log By Brian MC41002 pate Ir/30 6 i2/Ot¢ mit 8000 <br /> Driller <br /> Checked By Ea Simonis License No. P.G4422 <br /> C a m <br /> ;, U Description <br /> r� —m O� d o o CL 0LO{ U <br /> �.- 2 a d CL a V u �o� (Color, Texture, Structure) <br /> Ov o m l7 uq Trace < 10%. Little IDX to 20X, Some 20X to 35%, And 35% to SOX <br /> U <br /> 0 >• 5" concrete (sidewalk) over base course. <br /> -� "• Silty CLAY (20.80): dark brown, dry to damp. no hydrocarbon <br /> 2 odor. <br /> c < <br /> 4 <br /> < < <br /> < <br /> CL <br /> < Mw-7 <br /> 6 0 -60 <br /> $ < <br /> � < < <br /> ir Clayey silty fine SAND (20.80): brown, grading to silty CLAY <br /> < < (20,80): dark brown, dry to damp, no hydrocarbon odor. <br /> 1 10 SC <br /> < < Mw_7 i.....: <br /> I <br /> ) ( 0 -110' <br /> i 12 CL <br /> < < I Clayey SILT (45.55): brown, dry to damp. no hydrocarbon odor. <br /> 14 �< < I <br /> i <br /> Ic ` Mw-7 u <br /> 16 __ll 1 f 0.5 -16.o' <br /> i <br /> :7 < < f <br /> 1$ I < < ! Silty CLAY (40,60): light brown with dark brown mottling, dry to <br /> damp. no hydrocarbon odor. <br /> 20 < � <br /> Mw-7 <br /> < < i 0.5 ct ) <br /> } 22 ` I <br /> i <br /> 24�I <br /> a Page: t of 2 <br /> 01/26/1996 1itNcg-aec.93 <br />