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Cambrio Environmental Technology, Inc <br /> 1 144 -65th St BORING/WELL LOG <br /> Oakland, CA 94608 <br /> Telephone (510) 420-0700 <br /> Fax (510) 420-9170 <br /> CLIENT NAME BP Oil Company BORINGIWELL NAME MW-1 <br /> JOBISITE NAME BP-11191 DRILLING STARTED 10-Dec-01 <br /> LOCATION 1469 East Hammer Lane Stockton CA DRILLING COMPLETED 10-Dec-01 <br /> PROJECT NUMBER 852-1709 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER V&W Drillina GROUND SURFACE ELEVATION <br /> DRILLING METHOD Hollow-stem auger _ TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 8-inch SCREENED INTERVAL _ 45 10 60 ft bgs <br /> LOGGED BY S Dwight DEPTH TO WATER(First Encountered) 45 0 ft(10-Dec-01) <br /> REVIEWED BY K Rahman RG DEPTH TO WATER(Static) NA Z <br /> REMARKS Hand au ered to 5'b s <br /> CD <br /> CL aCL co <br /> w z �, <br /> p z � W co ¢O <br /> rn a LITHOLOGIC DESCRIPTION H= WELL DIAGRAM <br /> E—13- CLU0 CL <br /> Ulu <br /> ASPHALT --,/-03 <br /> CLAYEY SILT(ML),dark brown,dry 20%clay,75%silt, <br /> 5%fine grained sand,low to moderate plasticity,tow <br /> ML estimated permeability <br /> �a 5 _ _ _ _ _ _ _ _ _ 50 <br /> 26 SANDY SILT(ML),brown mottled with white dry,5%clay, <br /> 3 MW-1 s 80%silt, 15%fine grained sand,no plasticity low <br /> estimated permeability <br /> ML <br /> a 10 _ _ _ _ _ _ _ _ _ _ 100 <br /> ,g CLAYEY SILT(ML),light brown,dry,25%clay,65%silt, <br /> 18 MW 1- 10%fine grained sand, low to moderate plasticity, low <br /> 1t estimated permeability <br /> i <br /> o Z; 15 ML @ 15' 15%clay,75%silt,low plasticity <br /> Mw-1- <br /> 16 <br /> CY <br /> �0 20 200 <br /> M c SANDY SILT(ML) light brown,dry,60%silt,40%fine Portland Type <br /> 3ograined sand,no plasticity,low to moderate estimated <br /> Mw 1 I/ll Cement <br /> 21 permeability <br /> LULL <br /> d <br /> C7 <br /> d/ <br /> Tia 25 ML <br /> e e @25' light brown mottled with white,5%clay,55%silt, <br /> CL <br /> 25 5 40%sand,no plasticity, low to moderate estimated <br /> permeability <br /> S2 <br /> _L <br /> _ _ _ _ _ _ _ _ _ _ _ _ _ 300 <br /> o a 30 SILTY SAND(SM), light brown, dry,35%silt,65%fine <br /> 7CLwt . <br /> 17Mw-1 grained sand, no plasticity, moderate estimated <br /> 31 permeability <br /> k—�35j <br /> Continued Next Page PAGE r of 2 <br />