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02/24/2004 14:09 53067660 STRATUS NO CALIF* PAGE 11/17 <br /> SOIL BORING LOG Boring No. B-40 Sheet 2 of 8 <br /> Client Arco Station 6100 Date 219/2004 <br /> Address 25775 Patterson Pass Road Drilling Company Gregg Drilling rig type: Mobile Drill8-80 <br /> Tracy,CA Driller Chris <br /> Project No. U6100 Method Mud Rotary hole clam.: 5" <br /> Logged By: Scott Bitbnger <br /> Sim le Blow gem PID <br /> to well Oeutn 7escrigaara'MMetermis <br /> court Tfine Rncovi.�t. 9ceie CALUMN'. !:; fni;Contlltlons ` <br /> 2 t ML CLAYEY SILT,brownish gray 20.22,5',light Sre iZsh <br /> _ orange imn oxide staining,cry,very stiff <br /> 2 2 <br /> 2 3 <br /> 2 6 <br /> S 1340-25 9:54 z s 0 <br /> 2 a <br /> ML SANDY SILT 26'-27.5',olive gory,70-80%alit..20.30Y°fine to metlium <br /> _T_____^ - x T rainec sand,trace claZ_drL _,��_�_ <br /> 2 e <br /> ...... _— ...__ — .-A—NU-17.—__a1CT____—._._-.._ _--_-.___—_.... __— <br /> S 640.28 10:03 SW-SP SAND 27,5'•29',tlark gray,85-9oq'o fine grained sand,5-10%medium 0 <br /> a sc,�mined sand_<5%coarse grained sand and finegravel,damp dense ___ <br /> _ s a ML ed CLAYEY SILT 29'-32',I ht Olive grafi.-1.3%fine grain5040.dry,very--- <br /> skiff_ ..— <br /> _ <br /> 3 1 <br /> _12 <br /> — CL SILTY CLAY,light gray,dry,stiff <br /> 3 3 <br /> ML SILT,grayish hrpxrtt with yellow staining,trace clay,dry,very stiff 9 <br /> S_ _940.34 10:19 3 a SILTY$AND 33.2_-34" li_q olive btown�70Yi fine mored sand,30% _ <br /> _ —8 ....-_—__.-.... <br /> _ fines,molst,Cense <br /> —2.5 <br /> ML SILT,light olive brown,<5%fine grained WT.dry,very stiff <br /> se <br /> 37 <br /> ML SILT,light olive brown,caliche present from 38'-39',trace yrellcw staining, <br /> 3 B <br /> S B40-40 10:32 14 01 40 <br /> Commenw; <br />