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ENGINEERING SCIENCE, INC. Sheet 1-of-2 — <br /> BORING NUMBER SB2 <br /> PROJECT NUMBER. 725386 08969 PROJECT NAME- Supplemental Site Assessment <br /> CLIENT Greyhound Lines,Inc DRILLER Spectrum Exploration,Inc <br /> t <br /> CATION: Stockton,Caltfornra DRILLING METHOD: Hollow-stem Auger,CME55 <br /> Terminal#8969 18"SpI it-Spoon Sampler(2 5"OD) <br /> GEOLOGIST H Pietrosoli HOLE DIAMETER: 65 inches <br /> t <br /> COMPLETION DATE- 8/29194 TOTAL DEPTH 51.5 feet below ground surface <br /> F 4 <br /> ?�a z E <br /> a „Wj W a0 a. <br /> 2p] U 3 � GEOLOGIC DESCRIPTION <br /> �1 o yz 3 Q o` <br /> M <br /> 6" Asphalt Q <br /> FILL, medium-grain sand, brown <br /> -----------------drilling reaction --------------------------------------- <br /> 3/3 SB2 5 12 0 5 CLAYEY SILTLY SAND(SC),medium grain brown, <br /> 15 dry slightly plastic moderately stiff <br /> 20 <br /> t <br /> op 2,5/3 SB2-10 3 09 10 SILTY CLAY(CL),yellow-brown,moderately stiff to soft, <br /> 6 slightly plastic to plastic <br /> 12 <br />(l 1 <br /> § <br /> 2/3 S112-15d 04 15 As about <br /> 14 <br /> f ---------------------------—---------------------------------------__..__ <br /> i� 3/3 SB2-20 y 03 20 SAND(SW) fine to medium-grain,yellow-brown,loose,damp <br /> 14 <br /> 3/3 S132-25 6 104 25 As above medium-grain sand,slight fuel odor <br /> 6 <br /> I <br /> 10 <br /> 3 30 SILTY CLAY(CL) yellow-brown with patches of <br /> 3!3 5B2-30 5 51 blue-green discoloration,slightly plastic,damp, <br /> f 9 moderately stiff to soft,slight fuel odor <br /> Non-standard blow count, sampler 2 5 inch OD ' Brass tube sample submitted for laboratory aoafysis <br /> I� First encountered groundwater <br /> I Contact approximately located NR Not Recorded :�h <br />