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Advanced BORING LOG <br /> GeoEnvironmental, Inc. BOREHOLE NO P-23 <br /> 4005 North Wilson Way, Stockton, CA 95205 <br /> (209) 467-1006 FAX (209)467-1118 TOTAL DEPTH 20 Feet <br /> Project FLAG CITY CHEVRON Drilling Co Enviroprobe <br /> Site Location 6421 Capitol Avenue Rig/Auger Type Geoprobe 5400/ 1 25" rods <br /> Lodi, California Logged By T Mikacich <br /> Reviewed By N Henderson <br /> Project No AGE-NC-96-0232 Date(s) Drilled 05/08/00 <br /> Notes P-23 terminated at 20'bsg Grab water sample collected R Water level during drilling page 1 of 1 <br /> between 17&20'bsg Backfilled with portland cement Water level in completed well <br /> Sample Blows PID Soil USCS Class and <br /> Depth ID /ft (ppm) Symbol Soil Description <br /> 0 <br /> CL Light brown to olive-green,damp,SILTY LEAN CLAY,white mineralization and <br /> trace iron oxidation No hydrocarbon(HC)odor <br /> -5 P-23-5' --- -- <br /> SM Brown,moist,SILTY SAND,30%silt,trace clay No HC odor <br /> -l 0 P-23-10' --- 1 <br /> _ — SM Brown,moist, SILTY SAND,fine sand,30%silt,light brown mottling and trace <br /> F iron oxidation No HC odor <br /> -15 P-23-15' --- 60 <br /> SM Brown,wet,SILTY SAND,fine to medium sand No HC odor <br /> _20— P-23-20' --- 10 <br /> Grab ground water sample P-23-W collected from 17 to 20 feet below surface grade <br /> (bsg) <br />