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FSI GeoStrategies Log of Boring U—P/UV-1 PROJECT Unocal Station No 0187 LOCATION 437 E Miner Avenue, Stockton, CA GSI PROJECT NO 482704 CASING ELEVATION 1105 feet above MSL DATE STARTED 7/19/95 WL (ft bgs) 435 DATE 7/19/95 TIME 905 am DATE FINISHED 7/19/95 WL (ft bgs) 4102 DATE 7/31/95 TIME 8 30 am DRILLING METHOD 10 in hollow-stem auger TOTAL DEPTH 45 Feet DRILLING COMPANY Mitchell Drilling Environmental GEOLOGIST Steve Carter w m F z z -i U)WELL DIAGRAM n I- w LU GEOLOGIC GEOLOGIC DESCRIPTION x a rn CL � z v H � 0. Q- CL 0. O m X a r�r O w 4 m in far) (D En CL j w o d' U U SANDY CLAY WITH GRAVEL (CL) -dark brown (7 5Y 4/4), very stiff, dry to damp, 50% clay, 30% fine to Or 0 17 UP-5 coarse sand, 20% fine to coarse gravel 0. O V �l v b Qjj � U CLAY (CL) - dark brown (10YR 4/3), very stiff, Q moist, 100% clay, product odor, 2"-thick layer of 10 115 20 UP-10 peat at 93 feet color change to black (2 5Y 2/0), brick and = ' charcoal fragments, 10-15% fine sand at 14-14 5 0 15 285 21 UP-15 feet, product odor — r- SC = SAND WITH CLAY (SP-SC) - dark gray (5Y 3/1), 207 22 UP-20 Oe5% cldlum ay, damp to moist, 95-100% fine sand, 2Q y, product odor = r clay increases to approximately 15% at 19 5-20 CL � r = CLAY (CL) - dark gray (5Y 411), stiff, damp, 100% �z clay, product odorTa a 25 261 26 UP-25 j V color change to yellowish brown (SOYR 5/8) mottled to gray (fOYR 6/I), fine sand to 5% - k 30 140 27 UP-30 "A A SC _ CLAYEY SAND (SC) - pale brown (10YR 6/3), medium dense to dense, damp to most, 75-80% fine sand, 20-25% clay increasing downward to EN 35 127 30 UP-35 approximately 40%,product odor r JOB NUMBER 482704 Page I of 2