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,., File No. NFE-4463-04 r./ <br /> August 1999 <br /> DATE DRILLED: 7/29/99 DRILLER: Exploration Geoservices <br /> ELEVATION: 45 ft. DRILLING METHOD: Hollow Stem Auger <br /> BACKFILL METHOD: Bentonite& Neat Cement DIAMETER OF BORING: 6 in. <br /> LOGGED BY: J. Buckthal DEPTH TO GROUNDWATER: 122 ft. <br /> c o CD Q <br /> z 0 U5 <br /> CL <br /> a o Log of Exploratory Boring No. EB4 <br /> Cz � o� LL <br /> � - <br /> m Description = U) <br /> 0 <br /> 3.5 inches of ASPHALT over 18 inches of BASEROCK. <br /> 1 <br /> 2 <br /> .-• 3 <br /> q SILTY CLAY, brown, moist,low plasticity, no hydrocarbon odor. CL <br /> 5- <br /> 6. NS 11 Poorly graded SAND, light brown, moist,fine grained sand with trace fine gravel, SP <br /> subangular to subrounded, no hydrocarbon odor. <br /> 8 <br /> .. 9 <br /> NS 13 LEAN CLAY, brown, moist, low to medium plasticity, no hydrocarbon odor. CL <br /> 10- <br /> 11. <br /> 12 <br /> 13 NS 6 LEAN CLAY,brown,wet, low plasticity,trace very fine grained sand,no hydrocarbon odor. <br /> 14 <br /> 15 <br /> Boring terminated at 13.5 feet. <br /> 16 Groundwater encountered at 12.2 feet. <br /> 17- <br /> 18- <br /> 19- <br /> 20- <br /> 21- <br /> 22- <br /> 23- <br /> 24- <br /> 25- <br /> Earth <br /> 71819202122232425Earth Systems Consultants Corral Hollow LOG OF EXPLORATORY BORING NO. EB4 <br /> .F Northem Califomia Tracy,California Figure A7 <br />