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SOIL BORING LOG Boring No. •2 Sheet 700f 7 <br /> Client Arco Station 6100 Date 4/21/2004 <br /> Address 25775 Patterson Pass Road Drilling Company Grego Drilling <br /> rio tvoe: Mobile Drill B-.1,3 <br /> Tracy,CA Driller Robert <br /> Project No. U6100 Method Mud Rotary hole diam: 5" <br /> Logged By: Scoff Bittin er <br /> Sam le Blow Sam to Well Depth <br /> Construc LITHO Descriptions of Materials PID <br /> T e No. Count Time Recov. L Scale COLUMN <br /> and Conditions PP <br /> —______.__________ ---— 121 <br /> _ _ _ <br /> CL SILTY CLAY 120'-123',light olive brown moist,stiff ---"–"-""""-'" <br /> S 642-122 15:10 _-_-,--- 122 <br /> ___________________ _______ _________ 123 <br /> __ __________.___________________brow________ ____ <br /> L SILT 123'-125.8',light olive brown,trace white caliche,trace black <br /> 1za manganese oxide stains,dry_stiff <br /> _____ __ <br /> -S-_-_B42_125 15:20 <br /> 125 <br /> ---_--- -------______ --------— _______ ________ 126 SM SILTY SAND 125.8__126__50.60%fine grained sand_40-50%fines__–_ <br /> trace cementation,dry,den se <br /> --------------------- ---------_ _-_____ __—___ 127 corebarrel lu ed at 126'. No recove 126'-127.5' <br /> -comp-"__P___9g_______7.'-__0'" –�— <br /> %'"incomplete recovery 127.5'-130' -------------"–""""–"–""–"-__–'-------- <br /> ---- <br /> ""-" <br /> -----_----_________ ___________ _______ _____-- 128 ,' ML SILT,I'l�ht olive brown,d _stiff_""_____ <br /> S Bat-128 15:40 _------ _ - ''----7 ---------- <br /> 0 <br /> ------------------- _______ _________ 129 CL SILTY CLAY 129_-1322_,light olive broom,dry to m,iet_stiff <br /> --------- _______ <br /> ______________________ --------—_ _____ 130 <br /> ----_-- <br /> -------- ---_-----___ __--------- <br /> __---_ _________ 131 <br /> ___S_____--42_132_ 15:50 132 <br /> ____________ 0 <br /> ___ ______________ <br /> _ ML SILT 132.2'-133',light olive brown,dry,stiff _ - -"""""–""""-"–"–'-- <br /> ________-------------- _____________ ____--- 133 <br /> -----------__---- ______ _________ 134 ML CLAYEY SILT 133'-133.5',Iht olive brown,d _stiff _ <br /> -------- -----------__ __---- _________ 135 no recovery 133.5'-135' <br /> -------- --------_____ ------------- ________ 13a <br /> ________________—_ ________ ________ 137 <br /> ____ <br /> ______________________ ----_--- _________ 138 <br /> -------- <br /> ------------------— <br /> _________________________ ________----- ____ 139 <br /> 140 <br /> Comments:total depth of boring is 135'bgs. <br />