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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 S4-83 <br /> JOB/SITE NAME Shell-branded Service Station DRILLING STARTED 12-Dec-02 <br /> LOCATION 2494 East Fremont Street,Stockton,Califomia DRILLING COMPLETED 12-Dec-02 <br /> PROJECT NUMBER 0797 WELL DEVELOPMENT DATE(YIELD) 31-Dec-02(41) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 22.69 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 22.43 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVAL 73 to 83 tbq <br /> LOGGED BY S.Lewis DEPTH TO WATER(First Encountered) 58.0 ft(12-Dec-02) <br /> REVIEWED BY J.Neely,RG 6927 DEPTH TO WATER(Static) 54.3 ft(06-Jan-03) 1 <br /> REMARKS <br /> o �� <br /> CL Lu z <br /> E <br /> ° O d Lu w Q O LITHOLOGIC DESCRIPTION z WELL DIAGRAM <br /> 0 m0 X �– UCL <br /> a U < w U U0 <br /> ASPHALT 0.4 <br /> SM <br /> Silty Gravelly SAND(SM);yellowish brown(10YR 5/6);moist; 1.5 <br /> 250 <br /> silt,55%fine to coarse sand;20%fine gravel. <br /> @ 1'-Silty SAND(SMB black(10YR 2/1);moist;30%silt,70% <br /> fine sand. <br /> Clayey SILT(ML);black(10YR 2/1);moist;15%clay,80%silt, <br /> 5%fine to medium sand;low plasticity. <br /> @ 2'-SILT(ML; dark yellowish brown(10YR 5/3);moist;5% <br /> 0 5 clay,95%silt. <br /> M <br /> 0 10 10'-yellow brown 10YR 5/6. <br /> @ Y ( ) <br /> 13.0 <br /> SM <br /> 0 15 Silty Sand(SM);brown(10YR 5/3);moist;25%silt,75%fine 16.0 <br /> sand. <br /> SAND(SP);yellowish brown(10YR 5/6);moist;5%silt,95% <br /> fine sand. <br /> 0 <br /> SP <br /> 0 <br /> M <br /> Q <br /> 0 <br /> 25— <br /> LU@ 25'-reddish brown(5YR 5/3). 26.0 <br /> a <br /> Clayey SILT(ML);yellowish brown(10YR 5/6);moist;15% <br /> clay,80%silt,5%sand;low plasticity. <br /> 0 <br /> z <br /> z <br /> LU <br /> 0 30— <br /> @ 30' brown(10YR 5/3)15%clay,85%silt. <br /> 0 <br /> 0 <br /> 0 <br /> J <br /> J <br /> Ld <br /> Contnued Next Page PAGE 1 OF 3 <br />