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Gettler-Ryan. Inc. Log of Boring MW-16 <br /> PROJECT: Tosco (76) Service Station No. 11195 LOCATION: 16500 South Interstate 5, Lathrop, CA <br /> GR PROJECT NO. : 140193.12 CASING ELEVATION: 12.92 feet (MEL) <br /> DATE STARTED: 05/28/02 WL (ft. bgs): 10.0 DATE: 05/28/02 TIME: 14:10 <br /> DATE FINISHED: 05/28/02 WL (ft. bgs): 10.55 GATE: 05/29/02 TIME: 08:15 <br /> DRILLING METHOD: - 8 in. Hollow Stem Auger TOTAL DEPTH: 21.5 feet <br /> -DRILLING COMPANY—Woodward Drilling — —-GEOLOGIST: -Andrew Smith .. <br /> uj <br /> * m <br /> F b in <br /> e z a WELL DIAGRAM <br /> LL <br /> GEOLOGIC DESCRIPTION <br /> Q w w c) <br /> a cn _j � z <br /> I— a a a <br /> a � o o X <br /> ui J a a cc o <br /> d a m cn cn co ch <br /> SM SILTY SAND (SM) - brown (10YR 5/3), moist, loose; <br /> 70% sand, 20% silt, 10% gravel. <br /> CL <br /> Q <br /> SP-SM POORLY GRADED SAND WITH SILT (SP-SM) - dark ti m = °; <br /> 4 brown (10YR 4/3), moist,medium dense; 90% fine sand, u <br /> 10% silt, trace of gravel. " Qj <br /> 13 <br /> SM SILTY SAND (SM) - grayish brown (2.5Y 5/2), wet, <br /> 8 medium dense; 75% fine sand, 25% silt. <br /> .% <br /> 0 22 MW-18 <br /> c <br /> N <br /> O <br /> SW WELL-GRADED SAND (SW) - strong brown (7.5YR o <br /> 5/4), wet, medium dense; 95% sand, 5% silt. U — <br /> � — m <br /> 12 a = " <br /> b <br /> q - C <br /> " = 4 <br /> C � <br /> L � <br /> U - <br /> fG <br /> 25 — <br /> 16 Color changes to grayish brown (2.5Y 5/2). ti <br /> 20 47 <br /> Becomes dense. <br /> Bottom of boring at 21.5 feet bgs. <br /> (* = Converted to equivalent standard penetration <br /> blows/foot.) <br /> 24- <br /> 28— <br /> JOB NUMBER: 140193.12 Page 1 of 1 <br />