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Cambria Environmental Technology, Inc BORING/WELL 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 BORINGMELL NAME MW-18 <br /> . JOBISITE NAME Former Texaco Station/United Gas Station DRILLING STARTED 22-Aug-02 <br /> LOCATION 440 W_Charter Way,Stockton _ DRILLING COMPLETED 23-Aug-02 <br /> Continued from Previous Page <br /> coCL LU Z X <br /> a H CJ ~ <br /> Oz UJI tau ' 0 a_p LITHOLOGIC DESCRIPTION z= WELL DIAGRAM <br /> CL ca0 a W 0 pw <br /> U U0 <br /> 103 @ 75'-dark greenish gray(5GY 311) 15%clay,55%silt, Slotted CMT <br /> 30%tine to medium sand,low to medium plasticity <br /> casing <br /> @ <br /> 78'- 15%clay,70%silt, 15%fine to medium sand <br /> 214 80 <br /> Monterey <br /> Sand#2112 <br /> @ 83'-Clayey SILT(ML),moist,20%clay,70%silt, <br /> 10%fine to medium sand medium plasticity <br /> 76 85 @ 85'-Sandy SILT(ML),wet,5%clay,55%silt,40% <br /> fine sand,no plasticity <br /> ML @ 89'-Clayey SILT_(ML) moist 15%clay,75%silt, <br /> 21 90 10%fine to medium sand, low to medium plasticity <br /> 00 95 @ 95'-20%clay,70%silt, 10%fine sand,medium Bentonite Seal <br /> plasticity <br /> 00 10 <br /> 0 <br /> c� <br /> a 0 0 05— <br /> @ 105'-fine to medium sand <br /> a <br /> IL <br /> G <br /> Fb Monterey <br /> F Sand#2112 <br /> @ <br /> 109'-Sandy SILT(ML),greenish black(5GY <br /> 0 0 0 1 2 511),moist to wet,5%clay,60%silt,35%fine to <br /> medium sand,no plasticity <br /> @ 111'-Clayey SILT(ML),moist,20%clay 70%silt, <br /> 10%fine to medium sand,medium plasticity <br /> a <br /> cD <br /> 0 <br /> J <br /> 11 1 7"-diam <br /> Continued Next Page PAGE 3 OF 4 <br />