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13or=ng& Casing Diameter Lo—ed By .Tra c <br /> Project Name Unocal SIS #5098 Well Cover Elevation Date DnIled <br /> 5606 Pacific Avenue,Stockton 4/8/92 <br /> Boring No. Drilling Hollow-stem Drilling Company <br /> NnV 13 Method Auger Woodward Drilling Company <br /> Penetration G.W. Depth Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> NIL Silt,estimated at 51 fine-grained sand,micaceous,very stiff <br /> 10/12/17 45 moist. light brownish gray <br /> - Silty clay,estimated at 20%elastic stir,slightly micaceous. <br /> -_ very stiff.moist gray,brown and grayish brown mottled. <br /> caliche common with nodules to I-3/4 inch in diameter. <br /> 6/7/I 1 50 ___ = Clay,estimated at 10-15%elastic silt.very stiff,moist,pale <br /> brown,trace pores with very dark gray staining. <br /> CL <br /> 10/1320 55 Clay estimated at 10-15%slightly elastic silt,hard,moist, <br /> light brownish gray,caliche Common. <br /> _-_-=_-- Silty clay,estimated at 15%silt with trace sand,micaceous <br /> 10/15/18 60 !lard,moist,light olive gray <br /> SW <br /> per" 11/14/17 - 65 t i Well graded sind c)Umatcd at 5%silt micaceous dense. <br /> s.-ituraled light brownish gray to gray <br /> Page 3 of 4 <br /> 1051 <br />