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BORING LOG <br /> Project No Boring& Casing Diameter Logged By 17-66 <br /> KEI-P 88-1013 9" 2" W W CEG /C,/ 3—T <br /> Project Name Unocal S/S #5098 Well Cover Elevation Date Drilled <br /> 5606 Pacific Avenue,Stockton 5/20/92 <br /> Boring No Drilling Hollow-stem Drilling Company <br /> MW 10 Method Auger Woodward Drilling Company <br /> Penetration G W Depth Strah- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> 13/18/36 45 Clay,estimated at 10%silt and 5% sand,hard,moist,gray <br /> to olive gray,caliche common <br /> I <br /> i <br /> Clay,trace silt,estimated at 5% sand,fractures common- <br /> 16/20/39 50 filled with greenish gray clayey sand,hard,moist,brown, <br /> gray,and greenish gray mottled <br /> CL <br /> 10/17/19 55 Clay,trace silt and sand,hard, moist,olive gray,root pores <br /> with gray staining <br /> 9/18/31 Silty clay,estimated at 15-20%n silt and 5%sand,hard, <br /> 60 moist,grayish brown, trace caliche <br /> Silty clay as above,moist to very moist,grayish brown <br /> changing to greenish gray at 63 5 feet,caliche filled pores <br /> Q common <br /> — 65 <br /> SWA y ry ---------------------- <br /> Page 3 of 4 <br />