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OBITECHNOLOGY <br /> Drilling Log <br /> GROUNDWATER Monitorin Well MW-8 <br /> 9 <br /> Pro(ect Chevron/Stockton Owner Chevron USA Products Co <br /> Location 2805 H Benjamin Holt D: Stockton CA Prol No 02070 3831 <br /> C ❑ Z T vi <br /> y" -0 d D <br /> ❑ > -00) ° Description <br /> a a U o U <br /> CL E a s E x a� '�-� (Color, Texture, Structure) <br /> U N mp ? Trace < 10%. Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> _ .24 <br /> - 5w Brown silty SAND (continued) <br /> 12 <br /> 26 5 MW-8 is Light brown micaceous silty medium to coarse SAND (20,80) (wet, <br /> -25' 20 no hydrocarbon odor) <br /> 5w s <br /> 28 <br /> Greenish gray clayey silty fine SAND (5,30,65) (wet, no <br /> 5M hydrocarbon odor) <br /> 30-. se <br /> 05 Mw-B 37 <br /> -30 50/5 GC (grades to clayey GRAVEL) <br /> 32 End of boring Installed groundwater monitoring well <br /> —34- <br /> - 357 <br /> 38 - <br /> -40- <br /> -42- <br /> -44 42 <br /> 44 <br /> 46- <br /> -48 <br /> — 50 - <br /> - 52 <br /> 54 <br /> — 56 - <br /> 02/21/1994 hthlog—mar63 Page 2 of 2 <br />