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SOIL BORING LOG Boring No B-34 Sheet 2 of 7 <br /> Client Arco#6100 Date 8/31/01 <br /> Address 25775 Patterson Pass Road Drilling Company Westem Strata Exploration rig type Mobile Drill B-61 <br /> Tracy,CA Driller Gordon Jensen <br /> Project No D000-340-01 Method Mud Rotary, hole dram 55 <br /> Logged By Scott Bittin er <br /> Sample Blow Sample well Depth Descriptions of Materials PID <br /> Construc LITHO <br /> Ty.p.e No Count Time Recov t Scale COLUMN and Conditions PPM <br /> ------------------------------------------------------ 1 -------------------------------------------------------------------------------------------- -------- <br /> 2 2 CL GRAVELLY CLAY with SAND,30%fine gravel-10%°sand 60%h; ht-------------------- <br /> -------- <br /> ----------------------------------------- — ------------------ <br /> _ brown clay moist <br /> 5 1334-23 1.035 2 3 ------- <br /> _ CL SILTY CLAY light brown,dry, hard <br /> z a <br /> 2 5 494 <br /> 2 6 <br /> 2 7 <br /> 2 e 187 <br /> ----------------------------------------------------- — ------------------------------------------------------------------------------------------------- -------- <br /> 2 9 <br /> 3 0 <br /> s416 <br /> '-'---------------------------------- - ' -- — -------------- -- ---------dry---- <br /> ghtbrown, ----------- ----- " <br /> -- --------------- -- ---- <br /> _ CLAYEY 51LT,lihard <br /> -10 L---—---------------------------------------- <br /> 3 z yellow staining 31_32 <br /> 5 B34-33 1.054 3 3 <br /> 3 4 <br /> 3 5 <br /> _ ML SANDY SILT with CLAY light brown,moist,stiff <br /> 3 6 <br /> _ SILTY SAND,55%fine grained sand 45%fines,moist <br /> 3 7 <br /> —s e ML SANDY SILT with CLAY,light brown with white caliche-dry hard 562- <br /> ----------------------------------------------------- - - -- -- - --- - -- -- ------------ -- -- <br /> 3 9 <br /> 4 0 <br /> Comments <br />