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Drilling Log <br /> E:0D❑® GROUNDWATER Sol{ Boring "--'B-13 <br /> 1:1TECHNOLOGY <br /> Project Chevron-E Hardnq, Stockton Owner Chevron USA Products Company See Site Map <br /> Location 45 East Hardll'cq way, Stockton, CA Proj No 02070 0139 For Boring Location <br /> Surface Elev Total Hole Depth 505 ft Diameter 8 in COMMENTS <br /> Top of Casing Water Level Initial 50 ft Static <br /> Screen Dia Length Type/Size <br /> Casing Dia Length Type <br /> Fill Material Neat Cement Rig/Core ,CME-55/Spilt Spoon <br /> Drill Co SES Inc_ Method Hollow Stem Auger/PID <br /> Driller Tyke Van Zandt Log By Rnan MCAloon Date 06/01/95 Permit # 006159 <br /> Checked By Ed Srmonrs License No RG#4422 <br /> O L' �, <br /> Description2 fu <br /> r_.. 0E m o � r- 0) <br /> a� 2 CL a U v 0.p U <br /> o,. a a e a (U i°-+ in (Color, Texture, Structure) <br /> ro W Trace < 10%, Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> N m x a <br /> _2 <br /> 0 Topsoil <br /> ML Gravelly clayey SILT (25,30,45) brown, backfill <br /> 2 <br /> Silty CLAY (50,50) brown dry to damp, no hydrocarbon odor <br /> 4 <br /> 50/5/5 <br /> 0 SB--13 <br /> 6 -5 5 <br /> CL <br /> 8 Sandy silty CLAY (10 40 50) brown dry to damp, no hydrocarbon odor <br /> 19 <br /> 1� SB-13 28 <br /> 0 -10 0 31 <br /> I <br /> 12 <br /> Sandy clayey SILT (10 30,60) brown, dry, hydrocarbon/chemical odor <br /> 14 18 <br /> SB-13 20 ML <br /> 140 -15 0 26 <br /> 16 <br /> (grades more clayey (10,40,50)) <br /> 18 <br /> 28 <br /> SB-13 37 <br /> 20 iso -2o a 44 <br /> ML <br /> 22 <br /> L24 L13 <br /> ILI <br /> 06/29/19951thiog-mar93 Page 1 of 2 <br />