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<br /> GeoStrategies, Inc. Log of Boring U-3
<br /> PROJECT FORMER UNOCAL STA TION,t0187 LOCATION 437 E Miner Avenue, Stockton, CA
<br /> GS1 PROJECT NO 4827703 CASING ELEVATION 1125 (MSL)
<br /> DATE STARTED 7/6/94 WL (ft bgs) 48 DATE 7/7/94 TIME 803
<br /> DATE FINISHED 7/7/94 WL (ft bgs) 4717 DATE 7/8/94 TIME 14 37
<br /> DRILLING METHOD Bin Hollow Stem Auger TOTAL DEPTH 55 Feet
<br /> DRILLING COMPANY West Hazmat Drilling GEOLOGIST Steve Carter
<br /> w
<br /> F o (Al WELL. DIAGRAM
<br /> Ch. w w v J GEOLOGIC DESCRIPTION
<br /> WU
<br /> N d 4 d
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<br /> O p a
<br /> w v -ja a cc o
<br /> C n. 03 u) to co u)
<br /> CL
<br /> 5 9 35 U3-6 5 CLAY (CL) - yellowish brawn (10YR 5/6), hard, dry
<br /> to damp, low plasticity, 100% clay
<br /> U
<br /> 10 1T 23 U3-111 5 SANDY CLAY (CL) - yellowish brown (IOYR 5/6),
<br /> 0.
<br /> very stiff, damp to moist, low plasticity, 60-65% a
<br /> clay, 35-40% fine sand -b Q
<br /> CO
<br /> D
<br /> 15 CLAY (CL) - yellowish brown (1OYR 5/6), very stiff, c
<br /> 311 26 1.13-16 5 moist, low plasticity, 95-100% clay, trace to 5% fine �n
<br /> SC sand
<br /> 213
<br /> 20 CLAYEY SAND SSC) - yellowish brown (IOYR 5/4), N
<br /> 21 29 U3-215 / medium dense, moist, 65-70% fine to medium sand,
<br /> / '—::CL 30-35% clay Cv
<br /> 25 BB 51 U3-26 0 CLAY (CL) - olive gray (5Y 5/2), hard, moist, low to
<br /> 1.13-26 5 medium plasticity, 100% clay, lightly to faintly mottled
<br /> with Fe-oxide staining, faint product odor -
<br /> 30 33 81 U3-315 color change to gray (5Y 5/1), light Fe-oxide
<br /> 10 5" staining, faint product odor
<br /> 35 51 43 U3-36 S SANDY CLAY (CL) - gray (5Y 5/1), hard, moS
<br /> moist low _ a
<br /> plasticity, 80-85% clay, 15-20% fine sand, faint o _
<br /> product odor o = a
<br /> — w
<br /> 40product odor
<br /> 158 44 U3-415
<br /> m = �
<br /> SC o = ro
<br /> 45 CLAYEY SAND (SC) -- dark gray (5Y 4/1), dense,
<br /> 83 41 1.13-48 5 / moist, 80-85X fine to medium sand, 10-15X clay, { = y
<br /> / SW-SC product odor _
<br /> 50 SAND WITH CLAY (SW-SC) - very dark gray (2 5Y
<br /> 70 41 U3-510 N3/0), dense, saturated, 90-95% fine to coarse 4 =
<br /> rounded sand, 5-10% clay, product odor
<br /> 41 88 U3-54 5 CL —
<br /> 55 G., CLAY (CL) - dark greenish gray (5GY 4/1), hard,
<br /> moist, low to medium plasticity, 85-90% clay, 10-15%
<br /> fine sand, product odor
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<br /> (9 - converted to equivalent standard penetration
<br /> blows/It)
<br /> �5
<br /> 70
<br /> JOB NUMBER 4827 703 Page 1 of
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