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Drilling Log <br /> ����® GROUNDWATER Soil BoringSB-11 <br /> ❑ TECHNCL.OGY <br /> Project Chevron-E llardrnq, Stockton Owner Chevron USA Products Company <br /> Location .45 East Harding Way, Stockton, CA Prof No 02070 0139 <br /> ❑ w N <br /> _� '" `_ Description <br /> Q� Oa Q o a� U <br /> o- a-a ; v �� (Color, Texture, Structure) <br /> ° Trace < 10%, Little 10% to 20%, Some 20% to 35%, And 35% to 50% <br /> U) m x <br /> 24 Clayey SILT (40,50) brown, dry to damp, soft with stiff streaks, fine root <br /> 27 9 31 casts, hydrocarbon/chemical odor <br /> 26 SB-11 38 1 <br /> -26 0 <br /> 28 <br /> ML <br /> 13 <br /> 3Q <br /> 4 17 <br /> SB-11 22 <br /> -310 <br /> 32 <br /> Medium to coarse SAND brown gray moderately to poorly sorted, <br /> 34 dry/damp, loose, hydrocarbon odor <br /> 14 <br /> 25 18 SP <br /> SB-• 36 -36 20 <br /> -36 0 <br /> Sandy silty CLAY (10,30,60) olive-brown with gray, brown, and white <br /> 38 mottling, dry to damp, slight hydrocarbon odor <br /> 40 21 <br /> 0 28 <br /> SB-11 30 <br /> -410 <br /> - 42 - <br /> CL i Static Water 08/01/95, 1820 hrs <br /> -44 - <br /> 211 <br /> 0 25 33 <br /> SB-13 49 <br /> 46 -460 <br /> 48 <br /> 22 <br /> 50 0 36 L/C Fncounterd Water (Driller s Call) 08/01/95, 1012 hrs <br /> SB-11 28 <br /> -51 o Clayey SILT (50 50) brown damp grading to wet hydrocarbon odor End <br /> 52 of boring Back f lied with cement <br /> �1 <br /> 54 - <br /> 06/29/1995 <br /> 406/29/1995 hthlog-mar93 Page 2 of 2 <br />