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DRILLILITHOLOGIC LOG <br /> BORING/WELL NUMBER TB4 <br /> PROJECT Thnfty Service Station 171 OWNER Thrifty Oil Company <br /> LOCATION 1250 Wilson Way, Stockton California PROJECT NUMBER <br /> DATE DRILLED 12/20/94 TOTAL DEPTH OF HOLE 50 Feet <br /> SURFACE ELEVATION DEPTH TO WATER <br /> SCREEN DIA 2-Inch LENGTH 45 Feet SLOT SIZE 0 02 Inch <br /> CASING DIA 2-Inch LENGTH 5 Feet TYPE PVC <br /> DRILLING COMPANY West Hazmat DRILL METHOD HSA <br /> DRILLER George LOG BY Dan Louks <br /> DEPTH WELL CONST OVA SAMPLES SOIL DESCRIPTIONISOIL CLASSIFICATION <br /> (FEET) (PPM) CLASS (COLOR, TEXTURE, STRUCTURES) <br /> PIPE, FILL NUMBER BLOW SCS <br /> BENT <br /> aLANK <br /> 5 480 T134-5 4118 SP SAND, gray/brown, moderately sorted, fine-grained, <br /> moist, mild odors <br />• <br /> 10 1,200 TB4-10 51516 SM Silty SAND, graylbrown, poorly sorted, fine-grained, <br /> very moist, strong odors <br /> S <br /> 15 C S 550 T134-15 22150 ML SILT, reddish brown, stiff, mottled, trace pebbles <br /> R A <br /> E N <br /> E D <br /> N <br /> 20 600 T134-20 30150 ML SILT, reddish brown, stiff, mottled <br /> 25 350 T134-25 30150 ML SILT, reddish brown, stiff, mottled, some sand &clay <br />