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4 <br /> uu�I I Drilling Log <br /> GROUNDWATER Monitoring Well MW-1 <br /> :11-1 TECHNOLOGY <br /> Protect Chevron-Charter Way, Stockon owner Chevron USA Products Company See Site Map <br /> Location 508_Charter Way, Stockton. CA 02070 0071 For boring Location <br /> —._ Prof No <br /> Surface Elev Total Hole Depth 513 ft Diameter 8 in <br /> COMMENTS <br /> Top of Casing Water Level Initial 35 ft Static <br /> Screen Dia 2 to Length 20 ft Type/Size 0 020 in <br /> Casing Dia 2 in Length 30 ft Type Sch 40 PVC <br /> Fill Material #3 Sand Rig/Core CME-75/Spat Spoon <br /> Drill Co SES, Inc Method Hollow Stem Aucer/PID <br /> Driller MlkeDuffY Log By Bruce Beale Date 03/15/85 Permit # 5179 <br /> Checked By Ed Stmonis License No RG#4422 <br /> , �, to o "�, Description <br /> CL_ n,_ 0. a 0 ap U <br /> to 3:a a s E U u to m (Color. Texture, Structure) <br /> O`er o n ° ¢ is Trace < 10%, Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> U N m x � <br /> -2 <br /> 2 asphalt over 4" base coarse <br /> Gravelly silty sandy CLAY (10,10,40,40) brown-black moist, slight <br /> 2 < < hydrocarbon odor <br /> CL <br /> c c <br /> 411<r <� r MSilty CLAY (20,80) light brown with white streaks and patches, <br /> < < 1 o $—I 2 moist, no hydrocarbon odor <br /> 6 ` s <br /> CL <br /> 8 < < <br /> < < <br /> Silty CLAY (40,60) light brown, moist, no hydrocarbon odor <br /> 30 < < MW-1 <br /> 1 0 —10 6 <br /> < < 9 <br /> 11 <br /> 12 < < CL <br /> < < <br /> 14 < < <br /> Sandy silty CLAY (20 30,50) brown with green-gray mottling, and <br /> ` < 34 M 5 1 la white streaks and patches moist no hydrocarbon odor <br /> 16 < < 30 <br /> 24 <br /> < < CL <br /> 18 c c <br /> 20 < c <br /> MIN-1 (grades with abundant root casts <1mm diameter) <br /> 38 -20 2 <br /> < c 3 <br /> fi <br /> 22 de < CL <br /> ` ` (grades gray) <br /> 24 < [71 <br /> 04/120995l,thtcg—marU Page I of 2 <br />