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Monitoring Well MW-1 <br /> project Chevron/S. Center Owner Chevron U.S.A. . Inc. _ Drilling Log <br /> Location 139 S. Center, Stockton, CA project Number 203 175 3291.01 <br /> py H <br /> +� O V 10 <br /> r a Description <br /> CL g� (Color, Texture, Structure) <br /> 3 m <br /> 26 Moderate olive brown clayey SILT (medium stiff, damp, <br /> no hydrocarbon odor) <br /> ML <br /> Greyish olive silty CLAY (medium stiff, damp, <br /> MWi-30 no hydrocarbon odor) <br /> 30 <br /> CL <br /> 32 <br /> Light grey silty SAND with some clay (medium dense, damp, <br /> no hydrocarbon odor) <br /> 34 <br /> .: MW 5-35 <br /> SM <br /> 36 1 <br /> Light grey silty CLAY with some sand (soft, damp, <br /> no hydrocarbon odor) <br /> 38 <br /> CH <br /> Mwi-40 <br /> 40 <br /> Greenish grey clayey SANO (loose, damp, slight hydrocarbon odor) <br /> 42 1 : <br /> 44 <br /> Mwi-45 <br /> SC Encountered water 2/14/91 (1000 hours) . <br /> . <br /> 46 <br /> 48 <br /> Dark grey SAND with some clay (loose, saturated, <br /> 50 MWS-50 slight hydrocarbon odor) <br /> ----Dark grey SANG with clay and occasional brown mottling (loose, <br /> wet, slight hydrocarbon odor) <br /> 52 sw <br /> 54 Dark grey sandy CLAY (stiff, wet, no hydrocarbon odor) <br /> Mwi-55 <br /> =J6 CL <br /> 58 i <br /> Page 2 of 3 <br />