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Monitoring Well MW-1 <br />' Pro j ect Cne vron S. Center Owner _Chevron U.S.A. , roc, <br /> Drilling Log <br /> Location 1.39 S. Center Stockton. Ca_ project NLmt�� 203 175 .3291.01 - <br />' c +, m <br /> o <br /> D U <br /> a, �b ; Description <br /> oJ m (Color, Texture, Structure) <br /> 1 m a co .. <br /> U m 8 <br /> 25 Moderate olive brown clayey SILT (medium stiff , damp, <br />' no hydrocarbon odor) <br /> 28 ML <br /> Greyish olive silty CLAY (medium stiff , damp, <br /> 30 MWS--30 no hydrocarbon odor) <br /> CL <br /> 32 <br /> Light grey silty SAND with some clay (medium dense, damp, <br />' no hydrocarbon odor) <br /> 34 <br /> MWS-35 <br /> SM <br /> 1 3 <br /> Light grey silty CLAY with some sand (soft, damp, <br /> no hydrocarbon odor) <br /> 38 <br /> CH <br /> MW1-40 <br /> 40 <br />' Greenish grey clayey SAND (loose, damp, slight hydrocarbon odor) <br /> 4 <br /> I <br />' MWi-A5 SC Encountered crater 2/14/91 (1000 hours) . <br /> 4 <br /> 48 <br /> Dark grey SAND with some clay (loose, saturated, <br />' MWS-50 slight hydrocarbon odor) <br /> 50 <br /> ----Dark grey SAND with clay and occasional brown mottling (loose, <br /> wet, slight hydrocarbon odor) <br /> X52 SW <br /> 54 Dark grey sandy CLAY (stiff, wet, no hydrocarbon odor) <br /> • MWS-55 <br /> I56 CL <br /> 58 <br /> Io�r�ltt Page 2 0f 3 <br />