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Gettler--Ryan, Inc. Log of Boring U-T PROJECT Former Unocal Service Station No 0123 LOCATION 1034 Central Avenue, Tracy, CA. GR PROJECT NO 24007304 CASING ELEVATION DATE STARTED IV13/00 WL (ft bgs) 1054 DATE 11/13/00 TIME 1335 DATE FINISHED 11/13/00 WL (ft bgs) DATE TIME DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 215 feet DRILLING COMPANY Cascade Drilling GEOLOGIST David Herzog LU m z V) WELL DIAGRAM E U- z cy J GEOLOGIC DESCRIPTION w w U X 4 J LU w 01 4 Q X O 0— M cn Ln Lo (n Asphalt - 15 feet thick GM SILTY GRAVEL WITH SAND (GM) - very dark brown < o (OGYR 2/2), dry, 60% fine gravel 30% sand, tO% silt CL CLAY (CL) - very dark grayish brown 00YR 3/2), Y damp, 90% clay, 10% fine sand_ _ 4 ML SANDY SILT (ML) - brown (10YR 4/3}, moist, stiff 70%-silt. 30% fine sand, few very fine calcium Q carbonate nodules, trace of fine gravels trace of fine v iron-oxide nodules — 192 9 U-7-6 w u — � SM SILTY SAND (SM) - olive brown (2 5Y 414), C saturated, medium dense, 60%-70% fine sand. 30-40% m — silt, few fine iron oxide nodules, trace of fine gravel A N — c — U C Q - i O 380 11 U-7-11 _ ML SILT (ML) - olive gray (5Y 412) moist stiff, 90% silt, — 12 10% fine sand, few calcium carbonate veins 4 SM SILTY 5AND (SM) - yellowish brown (1 YR 5/4), — G saturated, medium dense 70% fine sand, 30% silt _ v = U N 348 11 U-7-16 = ML SANDY SILT (ML} - light olive brown (2 5Y 5/4), moist. 60% silt, 40% fine sand, trace of medium to coarse sand, trace of fine gravels o v 2a rrfff 304 U-7-21 III!! Bottom of boring at 215 feet bgs (% - Converted to equivalent standard penetration blows/foot) 24 28 JOB NUMBER 240073 04 Page 1 0 f 1