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Drilling Log <br /> ❑❑® GROUNDWATER Soil Boring SB--2 <br /> ❑❑❑ TECHNOLOGY <br /> Proiect Chevron-W Benjamin Nott, Stockton owner Chevron USA Products Company See Site Map <br /> 2905 W Benjamin Holt Or, Stockton, CA _ <br /> Location Prot No 02070 OOt7 For Boring Location <br /> Surface Elev Total Role Depth 215 ft Diameter Sin COMMENTS <br /> Top of Casing Water Level Initial 18 ft Static <br /> Screen Die Length Type/Size 10 from the SE corner of station <br /> budding <br /> Casing Dia Length Type <br /> Fill Material Neat Cement Rig/Core CME-75/S2111 S200n <br /> Drill Co SES, Inc .-. Method Hollow Stem Auaer/PID <br /> Driller Mike Duff Log By Jason Fedota Date 06/20/94 Permit # <br /> Checked By Ed Simons License No RGA4422 <br /> `" ° M Description <br /> p E a ' >o ° c pi W U <br /> a� ..C aU <br /> o .. a s E T W1 In (Color, Texture, Structure) <br /> i° ° x V) Trace < 109, little 10% to 20%, Some 20% to 35X, And 3S% to 50% <br /> N m x <br /> _2 <br /> Asphalt=over=base=course <br /> o :o <br /> Dark-brown-gray c*ey sandy SILT 120,30,501 (dry, no hydrocarbon - - <br /> 2odor) <br /> 4 ML i <br /> 5 SB-2 B <br /> 6 -5 7 <br /> 7 <br /> S Brown and gray mottled silty CLAY (30,70) (damp, soft, strong <br /> hydrocarbon odor) <br /> 10 30 513-2 3 <br /> -10 5 (grades with green/gray discoloration) <br /> g CL <br /> 12 <br /> 14 Brown silty fine SAID (45,55) (moist very strong hydrocarbon odor) <br /> 300 SB-2 5 <br /> 16 -'s s <br /> g SM <br /> 18 Y water Encountered.06120/94, 1250m <br /> Gray silty fine to medum SAND (20 80) (saturated, loose, moderate <br /> 20 30 SB-2 2 <br /> SW hydrocarbon odor) <br /> -20 3 <br /> 9 _ , <br /> 22 - End of boring Backfilled with neat cement <br /> 24 <br /> 07/21/1994 1dhlog-mar93 Page 1 of 1 <br />