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Settler-Ryan, Inc. Log of Boring U-23 PROJECT Former Unocal Service Station No 0187 LOCATION 437 East Miner Avenue, Stockton, CA GR PROJECT NO 24004208 CASING ELEVATION 1238 Ft (MSL) DATE STARTED 11/03/00 WL (ft bgs) DATE TIME DATE FINISHED 11/03/00 WL (ft bgs) 301f DATE 11/08/00 TIME DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 120 4 feet DRILLING COMPANY Cascade Drilling GEOLOGIST David Herzog w in * X o in * z Z J (n WELL DIAGRAM Q w w GEOLOGIC DESCRIPTION T.,;; Q U1 J _j 2 U F- y � a 4 a M w r-' a a ¢ o m U] (n C7 U) CL ASPHALT - 3 inches thick SILTY CLAY (CL) - dark yellowish brown (10YR 4/4). damp, medium stiff 65% clay, 25% silt, t0% fine sand, few iron oxide nodules (<2 mm), trace of fine calcium carbonate nodules 0 8 U-23--5 5 6 i 15 28 U-23-111 Color changes to very dark gray (tOYR 3/1), moist, 12 very stiff, abundant fine calcium carbonate nodules ML SANDY SILT (ML) - dark yellowish brown (10YR 4/4), moist, hard 70% silt, 30% fine sand, few iron oxide nodules 0 38 U-23-16 SM SILTY SAND (SM) - dark yellowish brown (IOYR 4/4), U 18 moist, very dense, 60% fine sand, 40% silt, trace of 4 fine mica Q a 3 & 18 52 U-23-21 SM SAND WITH SILT (SM) - brown (10YR 4/3), moist, dense 80% fine sand, 20% silt 24- I 1 411 34 U-23-20 3o- 0 58 U-23-31 Becomes saturated 80% fine to coarse sand, 20% silt, trace of fine gravel SM SILTY SAND (SM) - brown (10YR 4/3), saturated, dense 60% fine sand, 30% silt, 10% clay, few slightly indurated nodules, trace of fine mica 36 21 41 U-23-38 ML SILT (ML) - brown (10YR 4/3), saturated, hard 90% silt, 10% clay, few slightly indurated nodules, trace of fine sand some iron oxide staining 21 44 U-23-41 42 JOB NUMBER 240042 08 Page 1 of 3