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Drilling Log <br /> ❑❑® GROUNDWATER Monitoring Well MW-9 <br /> ❑❑ TECHNOLOGY <br /> Project chevron-W Benjamin Holt, Stockton Owner Chevron USA Products ComDany See Site Map • <br /> For Boring Location <br /> Location .2905 W Benjamin Holt Cir, Stockton, CA Prof No 02070 0017 <br /> Surface Elev Total Hole Depth 30 ft Diameter 8 in COMMENTS <br /> Top of Casing Water Level Initial 17.ft Static <br /> Screen- Dia 2 In Length 20 ft Type/Size 0 020 in p-10 lanter from Plymouth Drive sign ,n <br /> Casing' Dia 2!n Length 10 ft Type SCh 40 PVC <br /> Fill Material #3 Sand Rig/Core CME-75/5 rlt Soon <br /> Drill Co SES, Inc Method Hollow Stem Auger/PID <br /> Driller Mike Duffy _ Log By Jason Fedofa Date 08/20/94 Permit <br /> Checked By Ed Smonls License No RG#4422 <br /> C T y <br /> O CU b) <br /> tu o a O Description <br /> w` X a ri a # u �� m (Color, Texture, Structure) <br /> 0 to m K 0 a Trace < 10%, Little 10% to 20%. Some 20% to 35%, And 35% to 50% <br /> _0 - - - Topsoil-over soft-silty sandy CLAY- <br /> — < _ — <br /> 2 < CL <br /> Q' < < Light brown, some orange, clayey silty very fine SAND (10,40,50) <br /> o MW-9 2 (dry, soft, no hydrocarbon odor roots) <br /> 6 -5 3 <br /> SM <br /> 8 <br /> Light gray silty fine SAND (15 85) (well sorted dry, loose no <br /> 10 2 MW-9 4 hydrocarbon odor) <br /> -10 5 <br /> — s ' <br /> SP <br /> 12 <br /> 14 - Light brown/gray-orange/blue-green mottled sandy silty CLAY <br /> 40 MW-9 3 (10,40,50) (moist moderate hydrocarbon odor) <br /> 1fi — -t5 s <br /> Encountered Water 06/20/94 10 36am <br /> 18 = <br /> CL <br /> 20 2 Mw-9 4 <br /> -20 6 Dark brown-orange and gray mottled sandy silty CLAY (20,30,50) <br /> g (moist no hydrocarbon odor) <br /> 22 — <br /> 24 = (water up hammer to 17 ) <br /> 07/2 1,11994 lithiog-mar 93 <br /> Page i of 2 <br />