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MW <br /> Monitoring Well MW-4 <br /> Project Chevron/S. Center Dir Chevron U.S.A. . Inc. <br /> Location _139 S. Center, Stockton, CA project Number, 203 175 3291.01 <br /> Filling Log <br /> a n c <br /> Description <br /> _^ ; o� (Color, Texture, Structure) <br /> 3 (n m <br /> 26 Light brown.clayey SILT with trace sand (medium stiff, damp, <br /> no hydrocarbon odor) <br /> 28 ML <br /> 17 <br /> 14 Light brown silty CLAY with soft black concretions <br /> 30 MW4-30 32 (medium stiff, damp, no hydrocarbon odor) <br /> CL <br /> 32 Dark yellowish brown clayey SILT (medium stiff, damp, <br /> no hydrocarbon odor) <br /> 17 34 3 ML <br /> 17 <br /> MW4-35 35 <br /> Clean graded SAND (loose, damp, no hydrocarbon odor) <br /> 3 <br /> SW <br /> 38 Greyish green clayey SILT with trace sand (medium stiff, damp, <br /> 8 slight hydrocarbon odor) <br /> 14 <br /> 1 <br /> 40 MW4-40 20 ML <br /> 42 Bluish grey silty CLAY with trace sand (medium stiff, damp, <br /> no hydrocarbon odor) <br /> 44 <br /> 9 � <br /> 14 <br /> MW4-45 17 <br /> Greyish green silty CLAY (soft, damp, no hydrocarbon odor) <br /> 46 <br /> 48 CH <br /> MW4-48 12 <br /> 20 Encountered water 2/19/91 (1230 hours) . <br /> - <br /> 50 28 <br /> Bluish grey silty CLAY (stiff, wet, no hydrocarbon odor) <br /> 52 <br /> 54 CL <br /> Grey sandy silty CLAY (stiff, wet, no hydrocarbon odor) <br /> 56 <br /> r <br /> Page 2 of 3 <br /> 03/26/1991 <br />