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El Drilling Log <br /> GROUNDWATER Monitoring Well MW-2 <br /> 0 1:1 TECHNOLOGY <br /> • Project Chevron-Charter Way, Stockon Owner Chevron USA Products Company See Site Map <br /> Location 508 Charter way, Stockton, CA Pro( No 02070 0071 <br /> For 8orrng Location <br /> Surface Elev Total Hole Depth 515 ft Diameter 8 to COMMENTS <br /> Top of Casing Water Level Initial -35 ft Static <br /> Screen Dia 2 to Length 20 ft Type/Size 0 020 to <br /> Casing Dia 2 in Length 30 ft Type Sch 40 PVC <br /> Fill Material 03 Sand Rig/Core CME-75ISPllt Spoon <br /> Drill Co SES, Inc Method Hollow Stem Auger/PID <br /> Driller Mike Duff Log By Bruce Beale Date 03/15/95 Permit * 5179 <br /> Checked By Ed Simonts License No RG#4422 <br /> C O Z T N <br /> o .. co 91 <br /> t-- of t) a o s� to Description <br /> CL- CU._ Q a U Q p U <br /> W_ E a s E } u m� N (Color, Texture. Structure) <br /> in m X a Trace < 10%, Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> --2 <br /> 0 3 asphalt over gravelly CLAY dark brown to balck, moist to dry <br /> no hydrocarbon odor <br /> 2 < < (some back - fill material) <br /> < < GG <br /> 4 < <br /> Mw-2 <br /> < < 0 -5 5 <br /> Silty CLAY (30,70) mottled orange brown and brown gray, moist, <br /> 7 <br /> 6 < < 9 no hydrocarbon odor <br /> < < CL <br /> a < < <br /> Sandy silty CLAY (10,20,70) light orange brown moist, plastic, no <br /> 10 < c Mw-2 hydrocarbon odor <br /> 0 -10 4 <br /> < < 6 <br /> 8 <br /> CL <br /> 12 ` <br /> 14 < < <br /> < < Mw-2 <br /> 0 -15 3 (grades silty CLAY (15 85) light brown) <br /> i6 < < 3 <br /> s <br /> CL <br /> Clayey silty fine SAND (20,20,60) olive brown moist, no <br /> 20 < < Mw-2 hydrocarbon odor <br /> 0 -20 4 <br /> c < 10 <br /> 12 <br /> 10 - 22 — < < SC <br /> — 24 - <br /> 04/12/1995 <br /> 4 64/12/1995 NtNog-mar93 Page I of 2 <br />