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Cambria Environmental Technology, Inc BORING/WELL LOG <br /> 1 144 - 65th St <br /> Oakland, CA 94608 <br /> Telephone (510) 420-0700 <br /> Fax (510) 420-9170 <br /> •CLIENT NAME BP Oil Company BORING/WELL NAME MW-3 <br /> JOB/SITE NAME BP-11191 DRILLING STARTED 11-D c-01 <br /> LOCATION 1469 East Hammer Lane Stockton CA DRILLING COMPLETED 11-Dec-01 <br /> PROJECT NUMBER 852-1709 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER V&W Drilling GROUND SURFACE ELEVATION <br /> DRILLING METHOD Hallow-stem au er TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 10-inch SCREENED INTERVAL 40 to 60 ft bas <br /> LOGGED BY S Dwight DEPTH TO WATER(First Encountered) 40 0 ft(11-Dec-01) <br /> REVIEWED BY K Rahman RG DEPTH TO WATER(Static) NA 1 <br /> REMARKS Hand au ered to 5'b s <br /> o <br /> nn w Z SU U <br /> o, <br /> O a- X w a 4 LITHOLOGfC DESCRIPTION z WELL DIAGRAM <br /> n_ 0. Q D y U O� <br /> 1— U (0 U W <br /> 0 <br /> ASPHALT 05 <br /> SILTY CLAY(CL),dark brown dry,50%clay,40-/,silt, <br /> 10%gravel,low to moderate plasticity low estimated <br /> CL permeability <br /> a 5 50 <br /> c ,o SANDY SILT(ML),brown,dry,75%silt,25°/fine grained <br /> 18 MW 3-s sand,no plasticity,low estimated permeability <br /> ML <br /> s 10 _ _ _ _ _ 100 <br /> a s SILTY CLAY(CL),greyish brown,dry,55%clay,45%silt <br /> 10 MW 3 moderate plasticity,low estimated permeability <br /> 11 <br /> 4515—i 5 CL f9 15' light brown,damp,50%clay,40%silt, 10%fine <br /> W3 grained sand <br /> 18 <br /> Portland Type <br /> f/II Cement <br /> a 20 _ _ _ _ _ _ _ _ _ 200 <br /> 60 SANDY SILT(ML), light brown,damp,5%clay,60%silt, <br /> a is MW 3 35%fine grained sand,no plasticity,low to moderate <br /> 21 estimated permeability <br /> ML <br /> w <br /> a' <br /> t� <br /> 120 r 25 _ — _ 250 <br /> a SILTY SAND(SM),light brown mottled with orangeish <br /> 5 1e MW 3 brown,damp,40%silt,60%fine grained sand,no <br /> 26 plasticity,moderate estimated permeability <br /> m <br /> i <br /> N <br /> 20 " 30 SMMW 3 030' brown, 15%silt,600,lo medium to coarse grained <br /> s• <br /> = 305 sand,20%fine gravel high estimated permeability <br /> t <br /> ❑ <br /> a <br /> J <br /> J <br /> J <br /> �' 35 <br /> Continued Next Page PAGE i OF 2 <br />