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i <br /> SOIL BORING LOG AND MONITORING WELL COMPLETION DETAILS I Sparge Well: OS-9 <br /> Project Name:Singh's Unocal Project Location: 574 West Grant Line Rd, Tracy, CA Page 1 of i <br /> =Driller: Greggrilling, Martinez, CA Type of Rig: Hollow-Stem Auger Size of Drill: 5.011 Diameter <br /> Logged By: Erik H. Paddleford Date Drilled: July 2, 2002 Checked By: Robert E. Kitay, R.G. <br /> WATER AND WELL DATA Total Depth of Well Completed: 17,0' <br /> Depth of Water First Encountered: 6.5' Well Screen Type and Diameter: NA I <br /> Static Depth of Water in Well: NA Well Screen Slot Size: NA <br /> } <br /> Total Depth of Boring: 17.0' Type and Size of Soil Sampler: 2.0" I.D. Macro Core Sampler <br /> SOIUROCK SAMPLE DATA *- <br /> Y a DESCRIPTION OF LITHOLOGY <br /> o E u_ <br /> BORING a a J standard classification texture relative moisture <br /> CL DETAIL CC) U CL <br /> ' <br /> �, &0 _ �, m density, stiffness, odor-staining, USCS designation. I <br /> O m O 76 c0 <br /> 0 Street Box 0 Asphalt <br /> Tubingto Panel ssssys r <br /> Clayey SILT (ML); dark gray; moist; medium stiff; 60% <br /> •`4`4 <br /> '„',—Portland Cement sus s, s, s silt; 40% clay; trace gravel to 0.5” diameter; low <br /> •`•`• `•`•` sss, ss plasticity; very low estimated K; moderate <br /> XIGY <br /> .`.'. ',,•' �; _Yssss hydrocarbon odor <br /> •�•'• • E • cc S.ySyficSS h <br /> • • • • • SSdS„>bSYS C <br /> •`•`• �•�•f U SSS. S+dS.6S 5 <br /> PY <br /> – • ' • ` • o c s¢ssss wet at 6.5 <br /> ,ti�� {tip+f :dS+%SaSsS <br /> •`•`• `•'•` mS S�S>'SYs I <br /> - sus s <br /> 10 .'•'. f,`,' ssss 10 <br /> •`•`, •`{�� sssss <br /> Y °° /°yellow-brown; wet; 70/ silt; 20 clay; 10°/ fine sand; <br /> co <br /> I ° <br /> •�•{• �•r•� U .6-6 rd r6 . <br /> r s s s, s medium plasticity <br /> sYssAs,,s j <br /> N SySySyPyt <br /> ...a.-s <br /> U_ s, ss ass <br /> 15 15 <br /> Silty SAND (SP); brown; wet; medium dense; 70% fine to <br /> o cn medium sand; 30% silt; non-plastic; high estimated K; no <br /> C U odor 4 <br /> E' End of Boring at 17 feet <br /> ro <br /> /^L <br /> VF <br /> h I <br /> I 20 0 20 <br /> co <br /> X <br /> N <br /> Il <br /> E <br /> 25 25 <br /> i <br /> i <br /> 30 30 <br /> Af0QJA ESCRENCE ENGOHEERSS, INC. � <br />