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Drilling Log <br /> IT CMFORATIQN Monitoring Well MW-1 <br /> A Hember of the IT Group <br /> T-1=Leven, Inc See Elle Map <br /> n, SSW 14117 _ Owner -- For Boring r!o <br /> rofect 7-Eleven, <br /> Location 2725 Country Club Blvd Stockton CA Prof No 779966 <br /> Surface Elev Total Hole Depth 30 ft Diameter 81n COMMENTS <br /> Top of Casing — Plater Level Initial 18 ft Statle 78 ft <br /> Screen Dia 2 in Length 20 ft Type/size Sch 4010 0 O slot in <br /> .8sing, Dia 2 rn Length 10 ll Type Sch 40 PVC <br /> Fill Material 03 Sand Rig/Core Q 10/521(1 S2oon <br /> Drill Co Gre 20110Method Hollow Stem Auoer <br /> Driller Chris Log By Jon E21 Date 05/13/89 Permit # <br /> Checked By Ed Simoni5 License No Cal(for>tla R6#4422 <br /> « T M <br /> � Q <br /> no Description <br /> CL Z <br /> m r � CLCL6 x y m_, N (Color. Texture, Structure) <br /> E N a Trace < 10%, Little 10% to 20%. Some 20% to 35%. And 36% to 50% <br /> V <br /> _2 <br /> 0 , s 2 Asphalt over sandy GRAVEL (30 70) brown, dry, loose no <br /> < r o Gw hydrocarbon <br /> 2 Silty CLAY (40,60) mottled dark gray, medium brown and olive, <br /> mostly dry, slightly plastic no hydrocarbon odor <br /> 4 ` ` CL <br /> g5 Sandy, pebbly CLAY (10,30.60) brown slightly moist, stiff no <br /> . . - c c <br /> hydrocarbon ado( <br /> 6 Stahc 5/14199 <br /> u ""-1010 4 L/ Clayey SILT (40,60) olive brawn, slightly moist, stiff, no <br /> a hydrocarbon odor <br /> 12 — <br /> 14 — 3 "K-a1F 6 Clayey SILT (10 90) mottled brown and green, loose, faint <br /> _ 9 Mt hydrocarbon odor (?) <br /> 16 — <br /> 18 — Groundwater Encountered, 5/13/98 @930 hrs <br /> is <br /> 15 xx-ezo 7 <br /> 20 sx-a2r 20 - Medium SAND (1001 gray wet loose, subrounded to subangular, no <br /> 7 hydrocarbon odor, NO RECOVERY (heaving sand) <br /> 15 - <br /> 22 — 20 : - <br /> 5P <br /> 24 = 75 KW-025' is <br /> 24 <br /> 37 - Medium SAND (100) green/gray, wet loose, faint hydrocarbon odor <br /> 26 — with clay stringers (100) <br /> 28 - <br /> /Z <br /> 8 20 KWANa 15 <br /> 18 ML Clayey SILT (10,90) medium blue green moderately loose moist, <br /> 30 35 no hydrocarbon odor <br /> 32 <br /> o9r�ar1999 utntag-Har Sa Page- I of I <br />