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File No. NFE-4533-01 <br /> August 1999 <br /> DATE DRILLED: 7/29/99 DRILLER: Exploration Geoservices <br /> ELEVATION: 48 it, DRILLING METHOD: Hollow Stem Auger <br /> BACKFILL METHOD: Neat Cement DIAMETER OF BORING: 6 in. <br /> LOGGED BY: J. Buckthal DEPTH TO GROUNDWATER: 12x9 Fl. <br /> n <br /> z o u o <br /> a sLog of Exploratory Boring No. EB9 <br /> m <br /> w (0 m ascription N <br /> 0.4.5 feet Topsail/Fill. <br /> 1 <br /> 2 <br /> 3 <br /> 4 4.5-6 feet BASEROCK. <br /> 5 <br /> 6 — — <br /> 7 NS 9 LEAN CLAY,dark gray,moist,low plasticity,slight to moderate hydrocarbon odor. CL <br /> 8 <br /> 9 <br /> NS 10 LEAN CLAY,dark gray,moist,low plasticity,moderate hydrocarbon odor. <br /> 10 <br /> 11 <br /> 12 <br /> 3 <br /> 4 <br /> EBB 18 LEAN CLAY,dark gray,moist,low plasticity,small areas of free oil,moderate <br /> 15 4.5-15hydrocarbon odor. (14-14.5 ft.sample to Geomatri <br /> 16 <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 /> 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 /> 24 Groundwater encountered at 12.9 feat. <br /> 25 <br /> !, Earth Systems Consultants POmbo/Chevron LOG OF EXPLORATORY BORING NO. EB9 <br /> y Northem California Tracy,California Figure A6 <br />