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IProject Pacific Car Wash Project No AGE-NC-96-0229 BORING NO <br /> Site Address 4405 Pacific Avenue Total Depth 50 5 ft MW-4 <br /> Stockton, California Date 21 November 1997 <br /> Drilling Co Central Valley Drilling Logged by T Cuellar Page 1 of 2 <br /> Drill Rig Type B-60 Mobile Drill Rig Reviewed by N Henderson <br /> Goct�,mac'GAS �t�4,�oao Lithologic Description <br /> No samples collected <br /> CONTINUOUS CORE STARTING AT 10 FEET BSG <br /> 10— MW4-10 0 11-17-18 ML € ! Brown, damp,very stiff to hard, clayey, fine sandy SILT <br /> SM , • , ' Mottled brown and gray, damp, medium dense to dense, silty fine <br /> •� '• •I SAND <br /> MW4-15 0 7-8-11 •!`'. • E <br />' – ML Mottled brown and gray, damp, stiff to very stiff,fine sandy SILT <br /> I <br /> 20-- MW4-20 0 11-9-16 SM Mottled brown and gray, mast,medium dense, silty fine <br /> SAND <br /> MW4-25 0 27-50 ` • • Same as above <br /> 1 f • <br /> I• <br /> 1 fl <br /> Same as above, clayey <br /> 30— MW4-30 21 8-9-10 SW o Gray, moist,medium dense,fine to medium SAND <br /> ° Slight petroleum hydrocarbon(HC)odor at 30 feet <br /> a <br /> Gravelly,no HC odor <br /> U p Ground water encountered at 34 feet bsg <br /> MW4-35 0 17-14-23 <br /> o a <br />' ML V ! Mottled brown and gray, damp,very stiff to hard,clayey SILT <br /> 40— MW4-40 0 11-I4-19 <br /> – No HC odor <br /> Advanced <br />' GeoEnvironmental, Inc. <br /> L 1AM1PR0580R1NG-15PACCAR-15=9MW4 SAM 01l22198 Q 12 32 PM <br />