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�® • Drilling Log • <br />GROUNDWATER Monitoring Well MW -1 <br />❑❑❑ TECHNOLOGY <br />Proiect Chevron-Charfer way, SloCkon Owner Chevron USA Proaucts Company <br />f nrntfnn 508 Charter Way, Stockton, CA Proi. No. 02070 0071 <br />- --- <br />a <br />O <br />2 <br />r T <br />O2 C Y <br />V <br />„ <br />Description <br />- <br />n <br />3:e) <br />of <br />m o <br />Z <br />to <br />a0 <br />� <br />(Color, Texture, Structurm_ <br />E <br />o <br />N o <br />(7 <br />V)Trace <br />< 10%, Little 10% to 20%, Some 20% to 35%, and 35% to 50X <br />U <br />N m K <br />24 <br />Sandy silty CLAY (cont). <br />Mw -I <br />CL <br />34 <br />-25' 7 <br />Silty CLAY (40.60): green -gray, moist, moderate hydrocarbon <br />26 <br />Is CL <br />odor. <br />(grades clayey sandy SILT 30,30,40) <br />28 <br />ML <br />30 <br />a2 <br />Mw -I <br />-30' 9 <br />= <br />9 <br />— <br />a <br />Medium SAND: greenish gray, well sorted, augular/subangular, loose, <br />32 <br />— <br />moist, moderate hydrocarbon odor. <br />— <br />SP <br />34 <br />= <br />38 <br />Mw -1 <br />-35' <br />Y Encountered Water, 03/15/95, 1018 hrs. <br />36 <br />= <br />Silty CLAY (25,75): tan, moist to wet, moderate hydrocarbon odor. <br />—_ <br />CL <br />38 <br />= <br />Clayey, silty very fine SAND (20,40,40): dark gray/green gray, <br />40 <br />= <br />Mw -1 <br />with dark brown plant/twig fragments. <br />= <br />2 <br />-40' s <br />u <br />IML <br />= <br />u <br />42 <br />= <br />44 <br />= <br />Clayey SILT (45,55): dark green -gray, wet, moderate degraded <br />Mw -1 <br />hydrocarbon odor. <br />7 <br />-45' 8 <br />dSLP <br />46 <br />- <br />13 <br />Lense of medium SAND. <br />48 <br />= <br />CL <br />—_ <br />Clayey medium SAND (10,90): dark green -gray, subrountled, with <br />50 <br />= <br />Mw -1 <br />silty clay lenses, wet, moderate degraded hydrocarbon odor. <br />3 <br />-50• fo <br />n <br />„/5 <br />17 <br />End of boring. Installed groundwater monitoring well. <br />-52- <br />-54- <br />56 56 <br />04/12/1995 mNog-ma(93 Page: 2 of 2 <br />