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EXPLORATION DRILL HOLE LOG HOLE No. 12 <br /> PROJECT MONITORING WELL INSTALLATION DATE 5/12/83 LOGGED BY JEM <br /> FORWARD INC. CLASS II - 1 DI <br /> DRILL RIG AT-650 HOLE DIA. 8" SAMPLER Modified California <br /> GROUNDWATER DEPTH INITIAL 50T+ FINAL 481- HOLE ELEv. 4o,+_ <br /> _ o a <br /> Z _ Z F Z f > a <br /> DESCRIPTION W > `- ' z h z z <br /> ® Q H W <br /> O O < o ac Z <br /> O <br /> p <br /> Silty CLAY; dark brown, dry to CL/ <br /> barely damp, hard CH <br /> Silty, sandy CLAY, light brown, CL 5 <br /> damp, stiff <br /> 10 - <br /> - 15 - <br /> -20 - <br /> -25 20 <br /> 25 <br /> Sandy, silty CLAY; medium brown, CL <br /> moist, firm to stiff; easy drill- <br /> ing with minor gravel to 1/4" <br /> diameter,' sand fine to coarse 30 <br /> grained <br /> 35 <br /> !10 loo <br /> SAND; light tan, damp, dense; sand SP <br /> coarse grained, trace of gravel to <br /> 1/411 diameter CL <br /> Sandy, silty CLAY; as above 45- <br /> 50 <br /> PROJECT 116-1.4 BETA ASSOCIATES Page 1 of 2 <br />