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�® Drilling Log <br /> GROUNDWATER Monitoring Well MW--1 <br /> ❑❑❑ TECHNOLOGY <br /> • Protect Chevron-Charter Way, StockonOwner Chevron USA Products Company <br /> Location 508 Charter Way Stockton CA Prol No 02070 0071 <br /> Description <br /> Q1 <br /> or= Ol O pl U <br /> a.. N— . a Q L) C a 0 <br /> 3r E a s E v 31: O 40_J N {Color, Texture, Structure} <br /> o 111) o ¢ 0 N 'Trace < f0%, Little 10% to 20%, Some 20% to 35%. And 35% to 5OX <br /> U m x <br /> 24 Mw-1 CL Sandy silty CLAY (Cont) <br /> 34 -25 7 Silty CLAY (40 60) green-gray moist, moderate hydrocarbon <br /> zs 15 CL odor <br /> (grades clayey sandy SILT 30,30,40) <br /> 28 <br /> ML <br /> Mw-1 <br /> - 30 - _ 62 -30 s <br /> 9 <br /> 8 Medium SAND greenish gray, well sorted, augular/subangular, loose, <br /> 32 — moist, moderate hydrocarbon odor <br /> SP <br /> 34 _ <br /> Mw-1 Encountered Water, 03/15/95, 1018 hrs <br /> 38 -35 <br /> • 36 — Silty CLAY (25,75) tan, moist to wet, moderate hydrocarbon odor <br /> CL <br /> 38 - <br /> Clayey, silty very fine SAND (20,40 40) dark gray/green gray, <br /> Mw-1 with dark brown plant/twig fragments <br /> 40 — 2 -40 s <br /> 1k <br /> ML <br /> - 42 - <br /> -44- Clayey SILT (45,55) dark green-gray, wet, moderate degraded <br /> Mw-1 hydrocarbon odor <br /> 7 -45 a CL <br /> 46 = 13 5P Lense of medium SAND <br /> 77 <br /> - 48- <br /> CL <br /> 50 — 3 -5500 �o <br /> Clayey medium SAND (10,90) dark green-gray, subrounded, with <br /> Msilty clay lenses, wet, moderate degraded hydrocarbon odor <br /> w,s <br /> 11 <br /> 17 <br /> 52 End of boring Installed groundwater monitoring well <br /> 54 <br /> 56 <br /> 04/12/19951dNag-mar93 Page 2 of 2 <br />