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r <br /> BORING LOG <br /> Project No Boring Diameter 9" Logged By <br /> KEI-P89-1104 Casing Diameter N/A WW <br /> Protect Name Unocal S/S #5421 Well Cover Elevation Date Drilled <br /> 7303 Pacific Avenue,Stockton 11/9/92 <br /> Boring No Drilling Hollow-stem Drilling Company <br /> EB1 Method Auger Woodward Dnlhng Co <br /> Penetration G W Depth Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> ML =_ = Silt,estimated at 5-15% fine-grained sand,stiff to very stiff, <br /> ZZZZ <br /> 6/1/9 25 moist,dark gray (5Y 4/1),slightly micaceous,trace rootlets <br /> ---------------------- <br /> 'f•f•f'S <br /> :':':: Silty sand,estimated at I0-15% silt, medium dense,moist, gray <br /> 11/12/15 30 ,f ;.;.f (5Y 511),sand is fine to very fine-grained <br /> SM <br /> ffff <br /> I <br /> 5f1/18 `t• :: Silty sand,estimated at 15% silt,medium dense,very moist, <br /> 35 ;: :':: grayish brown (2 5Y 5/2),sand is fine to very fine-grained <br /> f 3 f f <br /> ,F,F • F <br /> ,i,%i•i <br /> 15/20/26 40 Silty clay,estimated at 15% silt and 5% sand, hard,moist,pale <br /> CL brown 00YR 6/3),trace caliche,Iocalized areas of moderate <br /> consolidation <br /> Silty sand,estimated at 30-40% silt and 5%clay,dense moist <br /> • --— light yellowish brown (2 5Y 6/3),sand is fine to very <br /> SM ';' fine-grained,trace pores and caliche <br /> 'f•f`f f <br /> Page 2 of 3 <br />