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QGeoStrateg(es, Inc. Log of Boring U-1 <br /> PROJECT FORMER UNOCAL STATION *0167 LOCATION 437 E Miner Avenue, Stockton, CA <br /> GSI PROJECT NO 4827703 CASING ELEVATION /160 IMSL) <br /> DATE STARTED 7/7/94 WL (ft bgs) 48 DATE 7/7/94 TIME 1717 <br /> DATE FINISHED 7/7/94 WL (fl bgs) 4774 DATE 7/8/94 TIME 14 51 <br /> DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 55 Feet <br /> DRILLING COMPANY West Hazmat Drilling GEOLOGIST Steve Carter <br /> LLI <br /> * o (n WELL DIAGRAM <br /> Q. U- z w L) GEOLOGIC DESCRIPTION <br /> S d N J -j S U <br /> CLC) x = a J <br /> a, O Q <br /> O o, m (Mn (n CJ N <br /> CL <br /> 0 48 U1-8 5 CLAY (CL) - very dark brown 0OYR 2/2), hard, dry <br /> to damp, 100% clay <br /> 0 26 1,11-8 0 <br /> 'a color change to dark brown (IOYR 3/3) at 7 feet, <br /> 0 25 1,11-11 5 very stiff, damp to moist oCU <br /> v m <br /> � u <br /> a <br /> 15 hard, trace to 5% fine sand C <br /> 0 36 U1-16 5 sn <br /> r SP-SC <br /> 20 0 25 U1-215 J� SAND WITH CLAY (SP-SC) - yellowish brown (IOYR N <br /> I 5/6), dense, moist, 90-95% fine to medium sand, <br /> CL 5-10% clay c c <br /> 25 2 23 UE-28 5 rr CLAY (CL) - dark grayish brown (2 5Y 4/2), very <br /> stiff, moist, low to medium plasticity. 100% clay, <br /> faintly streaked and mottled with Fe-oxide stains <br /> 304 33 U1-3i 5 color change to yellowish brown (10YR 5/6), lightly <br /> mottled, gray (2 5Y N8/0), hard <br /> 35 E;0 36 UI-36 5 color change to dark grayish brown (2 SY 4/2), low <br /> plasticity, 10-15% fine sand o _ <br /> Sc — a <br /> 40 5 35 U1-4t S CLAYEY SAND {SC) - olive gray (5Y 5/2}, dense, 4 - a <br /> moist, 65-70% fine to medium sand, 30-35% clay m — <br /> l <br /> 45 20 30 U1-46 5 color change to dark gray (5Y 4/1) = a <br /> U <br /> = 4 <br /> f SP E <br /> 50 {�~ SAND (SP) - very dark gray (2 SY N3/0), very <br /> 9 78 U1-51 5 dense, saturated, 95-100% fine to medium sand, _ <br /> 0--5% rounded fine gravel, trace clay, trace coarse <br /> 73 54 U1-55 0 sand <br /> 55 CL <br /> CLAY (CL) - dark greenish gray (5GY 4/1), hard, <br /> moist, low to medium plasticity, 100% clay, lightly <br /> mottled with Fe-oxide staining <br /> 60 (* - converted to equivalent standard penetration <br /> blows/ft) <br /> ss <br /> 170- <br /> Page 1 of 1 <br /> JOB NUMBER 4827 703 <br />