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Advanced BORING LOG <br /> GeoEnvironmental, Inc. BOREHOLE NO P-20 <br /> 7 s 4005 North Wilson Way, Stockton, CA 95205 TOTAL DEPTH 20 Feet <br /> (209)467-1006 FAX (209)467-1118 <br /> Project FLAG CITY CHEVRON Drilling Co Envtroprobe <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-20 ternunated at 20'bsg Grab water sample collected a 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 Sod USCS Class and <br /> Depth ID ft (ppm) Symbol Soil Description <br /> 0 <br /> ML Green to dark gray,damp,CLAYEY SILT,trace white discoloration and brown <br /> mottling Hydrocarbon(HC) and septic odor <br /> -5 P-20-5' --- 3 —— <br /> CL Brown,damp, SILTY LEAN CLAY,iron oxidation and black organic matter No HC <br /> odor <br /> -10 P-20-10' -- 3 <br /> CL Light brown to olive-green,damp,SILTY LEAN CLAY,trace fine sand,iron <br /> oxidation and dark brown mottling No HC odor <br /> -15 P_20-15' --- 1 <br /> SP-SM Brown,wet,POORLY GRADED SAND WITH SILT,fine sand,iron oxidation <br /> and black organic matter No HC odor <br /> -20— P-20.20' ___ 3 Grab ground water sample P-20-W collected from 17 to 20 feet below surface grade <br /> (bsg) <br />