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Settler--Ryan, Inc. Log of Boring U-26 • PROJECT Former Unocal Service Station No 0187 LOCATION 437 East Miner Avenue, Stockton, CA GR PROJECT NO 24004211 CASING ELEVATION DATE STARTED 02/19/02 WL (ft bgs) DATE TIME DATE FINISHED 02/19/02 WL (ft bgs) DATE TIME DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 120 feet DRILLING COMPANY Woodward Drilling GEOLOGIST Tony Mikacich LU * m oWELL DIAGRAM e � z v a GEOLOGIC DESCRIPTION 4 LU LU C.7 z;- a U] J J d a a J x a «-, w °w' n a a ac o o (L m cn to co to Asphalt over concrete - 0 inches thick CL CLAY (CL) - dark brown (7 SYR 3/2), moist, very stiff, medium plasticity, 90% clay, 10% fine sand Color changes to dark brown (7 SYR 3/2) mottled with 6 44 U-26-6 5 trace of brown Color changes to strong brown (7 SYR 4/6) becomes 0 >50 U-26-115 80% clay, 10% fine sand, 10% silt 12 ML SILT (ML} - strong brown (T 5YR 416}, moEst very stiff, 80% silt, 10% clay, i0% fine sand, abundant micas, trace of borings 2 35 U-26-16 5 �� SM 51LTY SAND (SM) - strong brown T(7_5 TR 416}, moist, 4 medium dense, 60% fine sand, 30% silt, 10% clay, trace o of micas, trace of black organic matter m � a m y u 10 28 U-26-215 CL CLAY (E) - yellowish brown 00YR 514), moist, stiff, ro 90% clay, 10% fine sand,abundant hard white 4 24 mineralization 0 16 U-26-26 5 CLAY WITH dark yellow s_h brown (10YR 414), moist, hard. 75% clay, 25% fine sand, trace of 30white mineralization, trace of black organic matter 0 >50 U-26-315 ML SILT (ML)- wet, very stiff 80% silt, 20% clay, trace of fine sand 2 35 U-26-355 36 CL SANDY CLAY (CL) - olive brown (2 5Y 413), wet, hard, 80% clay, 40% fine sand 12 >50 42 Page 1 of 3 JOB NUMBER 24004211