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Gettler-Ryan. Inc. Log of Boring U-16 PROJECT Former Unocal Service Station No 0187 LOCATION 437 East Miner Avenue, Stockton, CA. GR PROJECT NO 24004208 CASING ELEVATION 1170 Ft lMSL) DATE STARTED 10/30/00 WL (ft bgs) DATE TIME DATE FINISHED 10/30/00 WL (ft bgs) 2595 DATE 11/08/00 TIME DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 7825 feet DRILLING COMPANY Cascade Drilling GEOLOGIST Tony M,kacich w M t- o cn i= LL LLI Z v a GEOLOGIC DESCRIPTION WELL DIAGRAM 4 Lei -j 2^ n rn J -L S C7 F N 3C d CL C W V 2 Q 4 Q ct O O— Q. m fn In 0 En ASPHALT - 3 inches thick CL CONCRETE - 4 inches thick SILTY CLAY (CL) - dark brown to very dark gray (10YR 3/1), moist, very stiff 70% clay, 30% silt, trace of fine to medium sand 6 0 28 U-16-6 5 0 10 U-16-115 Includes hydrocarbon odor — — 12 ML CLAYEY 511- (ML) - brown (lOYR 5/3), moist, hard, 70% silt, 30%clay Q 0 44 U-16-18 5 18U CL SILTY CLAY (CL) - strong brown (7 SYR 4/6), moist, a hard. 80% clay, 40% silt, trace of black organic o matter, trace of iron oxide staining 0 38 U-16-215 U tp H � ML SILT (ML) - strong brown (7 SYR 5/6), moist, hard, 24 100% silt, trace of medium sand, trace of black organic A matter, trace of iron oxide staining 0 38 U-16-26 5 CL SILTY CLAY (CL) - strong brown (7 SYR 5/6), moist, very stiff 70% clay, 30% silt, abundant white mineralization, trace of medium sand, trace of black 30organic matter 0 27 U-18-315 36 0 24 U-16-36 5 SM SILTY SAND (SM) - strong brown (7 SYR 5/6), wet, . CL medium dense 70% fine to medium sand, 30% silt, micas SILTY CLAY (CL) - brown (7 SYR 514), wet, very stiff 70% clay, 30% silt, abundant black organic matter 0 T2 U-18-415 SP SAND WITH SILT (SM) - brown (7 SYR 5/4), wet, very 42 dense. 80% fine to medium sand, 20% silt, trace of JOB NUMBER 240042 08 Page 1 of 2