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SOIL BORING LOG Bonng No B-46 Sheet 2 of 4 <br /> Client Former Arco Station 6100 Date 11/16/2005 <br /> s 0 25775 Patterson Pass Road Drilling Company GreggDrilling rig a Mobile Drill B-80 <br /> Tracy CA Driller Chris St Pierre <br /> Protect No U6100 Method Mud Rotary hole diam 5" <br /> Logged By Scott Bittinger <br /> Sample Blow Sa Well Depth Descnpdons of Mate—K PID <br /> Construc LITHO <br /> Type No Count Time Recov t Scale COLUMN and Conddions PPM <br /> _ SM <br /> s t SC _CLAYEY_ SAND 60 6-61 brownish gray 55-6.0%fine grained sand 9 <br /> 40-45%clayey fines moist medium dense <br /> SB46-62 10 55 6 2 <br /> — _ SM SILTY SAND 61-63',olive brown 85%fine grained sand 15%fines <br /> s 3 damp medium dense <br /> 6 4 ------------_ — <br /> 6 5 --- --- --- — <br /> _ ML SILT 63-70 brownish gray to olive gray caliche present 65 5'-66 <br /> S 1346-66 11 45 s 6 caliche and manganese oxide present 69'_70 dry verystitf___– _— __-0 <br /> fi 7 <br /> 6 8 <br /> 69 <br /> ------------------------------------------- --------- — -------------------------------------------------------------------------------------------- ------- <br /> 7 0 <br /> 7 1 <br /> SILTY SAND 70-73 light olive brown to olive brown 65-85%fine <br /> ---------_646-72----------------12 OS __-___--- 7 z SM grained sand 15.35%silty fines-malst-----_-----------------_------_--_--_-------_-- --0_-- <br /> 7 3 cemented material plugged sampler at-73'bgs__No recovery 73'_75' <br /> 7 4 <br /> 7 5 <br /> s <br /> _ ML SILT 75'-78' light olive brown,trace white caliche moist very stiff <br /> S B46-77 12 20 7 7 0 <br /> 7 fi -------------------- <br /> 7 9 <br /> S B46-79 12 25 _ SM SILTY SAND 78-83' olive brown 75%fine grained sand 25%fines 0 <br /> e qJ moist medium dense <br /> Comments <br />