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Drilling Log <br /> GROUNDWATER Monitoring Well MW-7 <br /> ❑�� TECHNOLOGY <br /> Proiect Chevron - S. Center Stockton Owner Chevron USA Products Company <br /> Location <br /> 139 South Center St., Stockton. CA Proi. No. 02070 0068 <br /> - <br /> 2 � _ � � � Description <br /> r^ —n1 QE w o o aA U <br /> �= <br /> Q- a s E m0 ,n (Color, Texture, Structure) <br /> ov E 10 o co c Trace < 10%. Little IDX to 20%. Some 20% to 35%. And 35% to SOX <br /> U 1n 03 K D <br /> 24 l I Silty CLAY (30,70): brown, dry to damp, no hydrocarbon odor. <br /> Mw-7 <br /> 0 -26.0' <br /> < < CL <br /> - 28 - <br /> - 30 - <br /> 8 30 (grades with lenses of sandy clayey SILT (20,25,55): brown-gray) <br /> Mw-7 <br /> 0.7 -310' <br /> 32 <br /> Silty CLAY (30,70): to clayey SILT (70,30): green-gray, damp, <br /> hydrocarbon odor. <br /> 34 = L� <br /> Static water, 1620 hrs. <br /> MW-7 <br /> 36 = 2.3 -36.0' <br /> 38 = Clayey silty fine SAND (20,20,60): dark green-gray, moist, loose, <br /> hydrocarbon odor. <br /> 40 = MW-7 <br /> 10.4 -410' 111 <br /> v { <br /> 42 = <br /> 44 <br /> 63.0 <br /> MW-7 (grades interbedded with sandy silty CLAY and clayey SILT) <br /> — <br /> 46 = 150.5 -e6.0' <br /> 4 8 _ M/ <br /> = I <br /> = I <br /> 50 <br /> MW-7 j <br /> __ 32.3 -51.o' li <br /> 52 End of boring. Monitoring well installed. <br /> i <br /> 54 <br /> 56 <br /> Page: 2 of 2 <br /> 01/04/1996 ithiog-oec.,93 <br />