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ENGINEERING-SCIENCE, INC. 'Sheet 2 of 2 — - -- <br /> BORING NUMBER SB4 <br /> PROJECT NUMBER 725386 08969 PROJECT NAME Supplemental Site Assessment <br /> CLIENT Greyhound Lines,Inc DRILLER- Spectrum Exploration,Inc <br /> CATION Stockton,California DRILLING METHOD: Hollow-stem Auger,CME 55 <br /> Terminal#18969 18"Split-Spoon Sampler(2 5"OD) <br /> GEOLOGIST H Pietroaoli HOLE DIAMETER 6 5 inches <br /> COMPLETION DATE- 8/30/94 TOTAL DEPTH 47 5 feet below ground surface <br /> v Z _ !o <br /> uaUJ ZS <br /> p o 2 z 3 c a GEOLOGIC DESCRIPTION <br /> 0 0. <br /> q � <br /> -----------------drilling reaction ----------------—----------------------- <br /> 35 CLAYEY SAND(SC) fine-grain,gray,damp, <br /> 25/3 SB4-35 20 03 loose medium well sorted <br /> 25 (zone of coarse quartz sand with 5%fragments 1/4"at 35'-35.5') <br /> i <br /> 5 <br /> 4 0 40 SILTY CLAY(CL) blue-gray damp <br /> 3/3 SB4-40 8 white streaks slightly plastic <br /> 10 <br /> � 1 <br /> i <br /> I 25/3 SB4-45 S 05 45 As above <br /> 12 <br /> i� ---------------drilling reaction ----------------------------------------- <br /> 7 - <br /> ik Non-standard blow count sampler 2 5 inch OD ' Brass tube sample submitted for laboratory analysis <br /> First encountered groundwater <br /> Contact approximately located NR Not Recorded `44 <br />