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Drilling Log <br />❑D❑❑© GROUNDWATER Monitoring Well MW --5 <br />TECHNOLOGY <br />Project Chevron - Stockton Owner Chevron U.S.A. Products Co. <br />Location 09 south center St. Project <br />No. ueutu juxz pate drilled <br />�-- <br />C <br />y <br />C <br />Description <br />— a <br />�E <br />moo <br />Zrn <br />U <br />o... <br />o nu <br />z <br />mX <br />N <br />(Color, Texture, Structure)E <br />o <br />'fl ow -0 <br />m <br />a <br />Trace < 10%. Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br />t� <br />x <br />24 <br />Brown and gray mottled silty CLAY (continued) <br />< <br />< <br />0 <br />t5 <br />26 <br />< <br />< <br />25 50 <br />50/5 <br />c <br />t <br />28 <br />< <br />< <br />Light gray silty CLAY with white mottling (25, 75) (damp, firm, <br />It r <br />CI_ <br />no product odor) <br />c <br />c <br />30 <br />< <br />< <br />O <br />t5 <br />< <br />< <br />30' 25 <br />32 <br />-32- <br />-34- <br />Grayish brown clayey, silty, tine SAND (10, 20, 70) (damp, soft, <br />no product odor) <br />36 <br />= <br />35' 25 <br />SC <br />30 <br />38 <br />- <br />- <br />Dark greenish gray silty, fine to medium SAND (20, 80) (damp, no <br />product odor) <br />40 <br />— <br />0 <br />,$ <br />= <br />40 25 <br />— <br />35 <br />42 <br />44 <br />— <br />25 <br />zo <br />(Grades very moist, slight degraded gasoline odor) <br />46 <br />= <br />45' 25 <br />5M <br />30 <br />Encountered water 11/04/92, 2:15om <br />48 <br />50 <br />—_ <br />25 <br />s <br />Dart; blue-green silty, fine to medium SAND (10, 90) (saturated, <br />50' 30 <br />slight degraded gasoline odor) <br />_ <br />5015 <br />84 <br />= <br />Dark blue-green silty, slightly sandy CLAY {15, 5, 80) (damp, <br />51-1 <br />CL <br />firm, 5iight gegraded gasohne odor) <br />c0 <br />-56—= <br />55' 16 <br />