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Cambria Environmental Technology, Inc. BORINGMELL LOG <br /> 270 Perkins Street <br /> Sonoma, California 95476 <br /> Telephone: (707) 935-4850 <br /> Fax: (707) 935-6649 <br /> CLIENT NAME Shell Oil Products US BORINGNVELL NAME S-4 <br /> JOB/SITE NAME Shell-branded Service Station DRILLING STARTED 06-Dec-99 <br /> LOCATION 2494 East Fremont Street,Stockton,Cafrfomia DRILLING COMPLETED 06-Dec-99 <br /> PROJECT NUMBER 0797 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 22.00 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 21.62 ft above msl <br /> BORING DIAMETER 10-inch SCREENED INTERVAL 37 to 57 fbq <br /> LOGGED BY R.Periowski DEPTH TO WATER(First Encountered) 51.5 ft(06-Dec-99) <br /> REVIEWED BY J.Neely,RG 6927 DEPTH TO WATER(Static) 46.5 ft(06-Dec-99) 1 <br /> REMARKS <br /> o �� <br /> E <br /> ° O d Lu w Q O LITHOLOGIC DESCRIPTION z H WELL DIAGRAM <br /> 0 m0 X �– UCL <br /> a U < w U U0 <br /> SAND(SP/SM) ;dark yellowish brown(10YR3/4):moist;10% Portland Type <br /> fines,90%fine sand. Ill I <br /> SP <br /> SM <br /> 3.0 <br /> CLAY(CL) :very dark gray(glay1 3/);dry;95%fines,5% <br /> fine sand. <br /> 0.0 4 S4-5 5 <br /> 23 <br /> CL <br /> 10.0 <br /> 0.0 z9 S410 10 Silty SAND(SM) ;dry;dark yellowish brown(10YR4/6);40% <br /> o fines,60%fine to medium sand. <br /> 0.0 0 S4-15 15— Silty SAND(SM) ;moist;dark yellowish brown(10YR4/6);20% <br /> ° fines,80%fine to medium sand. <br /> Portland Type <br /> I/II <br /> 20— <br /> 0.0 10 S4-20 @20fbg;as above. <br /> 13 <br /> 7 <br /> 0 <br /> M <br /> SM <br /> J <br /> W 0.0 o S425 <br /> 25— @_25ibg;dark grayish brown(10YR4/2),as above. <br /> o s <br /> LU <br /> 0 <br /> Z_ <br /> i <br /> 30— <br /> 0.1 30 S4-30 Silty SAND(SM) ;moist;dark grayish brown(10YR4/2);40% <br /> 5 fines,60%fine to medium sand. <br /> 0 <br /> a <br /> J <br /> w35.0 Bentonite Seal <br /> F–357 <br /> Continued Next Page PAGE 1 OF 2 <br />