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VOW' Nmwow <br /> File No. NFE-4533-01 <br /> August 1999 <br /> ..r <br /> DATE DRILLED: 7/29/99 DRILLER: Exploration Geoservices <br /> ELEVATION: 48 ft, DRILLING METHOD: Hollow Stem Auger <br /> BACKFILL METHOD: Neat Cement DIAMETER OF BORING: 6 in. <br /> LOGGED BY: J. Buckthal DEPTH TO GROUNDWATER: 12.9 ft. <br /> O <br /> N N <br /> Log of Exploratory Boring No. EB9 c� <br /> v O E a 3LL U _ <br /> m m o <br /> C0 m .o <br /> 0 n escription cn <br /> 0-4.5 feet Topsoil/Fill. <br /> 1 <br /> 2- <br /> 3 <br /> 4 4.5-6 feet BASEROCK. <br /> 5 <br /> 6-- - <br /> 7, <br /> — — <br /> NS 9 LEAN CLAY,dark gray, moist, low plasticity,slight to moderate hydrocarbon odor. CL <br /> 8 <br /> v <br /> 9 <br /> NS 10 LEAN CLAY,dark gray, moist, low plasticity, moderate hydrocarbon odor. <br /> 10 <br /> 11213 11- <br /> 112- <br /> 13. <br /> 14 <br /> EB9 18 LEAN CLAY, dark gray, moist, low plasticity, small areas of free oil, moderate <br /> 15 4.5-15' hydrocarbon odor. (14-14.5 ft.sample to Geomatrix) <br /> 16- <br /> 17- <br /> 6 <br /> 1 NS 18 LEAN CLAY,dark gray, moist,low plasticity,small areas of free oil, moderate <br /> hydrocarbon odor. <br /> 18- <br /> 19-- - <br /> 20 <br /> 819 —20 <br /> LEAN CLAY, brown,wet, low plasticity,trace of very fine grained sand, no CL <br /> 21 NS 8 hydrocarbon odor. <br /> 22- <br /> 23 <br /> Boring terminated at 21.5 feet. <br /> .r 24 Groundwater encountered at 12.9 feet. <br /> 25 <br /> Earth Systems Consultants Pombo/Chevron LOG OF EXPLORATORY BORING NO. EB9 <br /> RIM Northern California Tracy, California Figure A6 <br />