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G®ttler-Ryan, Inc. <br /> Log of Boring MW-13 <br /> PROJECT: Tosco 176)Service Station No, 11155 LOCATION: 16500 South in 5, Lathrop, CA <br /> GR PROJECT N0. : 140193.12 CASING ELEVATION: 15.23 feet (MSL) <br /> RATE STARTED: 05/28/02 Is <br /> WL (ft.bgs): 10.0 DATE: 05/29/02 TIME: 11.•00 11 <br /> DATE FINISHED: 05/29/02 WL (ft,bgs): 6.03 DATE; 05/29/02 TIME: 13.05 <br /> DRILLING METHOD: 8 in. Hollow Stem Auger TOTAL DEPTH: 21 feet <br /> DRILLING COMPANY: Woodward Drilling GEOLOGIST: Andrew <br /> Smith <br /> L ci <br /> m <br /> * X F O N ``-- <br /> F; a N � = tail GEOLOGIC DESCRIPTION WELL DIAGRAM <br /> a a <br /> CL a o a d E? <br /> O`" m fla7 < [a7 N {: <br /> SM SILTY SAND (SM) - brown 00YR 5/31, moist, loose; <br /> 70%sand, 20% sill, fOX gravel. CL <br /> T�'aP-SMPOORLY GRADED SAND WITH SILT (SP-SM)-light c6 <br /> 4 olive brown (2.5Y 514),moist,medium dense; 90% fine hsand, 10% sill, <br /> o0 17 MW-13 <br /> is <br /> IN <br /> 0 23 SW-SM WELL GRADED SAND WITH SILT (SW-SM)- light olive — <br /> brown 12.5Y 514),wet,medium dense;90%sand, SOX 4 <br /> silt. <br /> o b f <br /> 12 0 — <br /> 4- •r a <br /> m o <br /> 0 47 <br /> �$ Becomes dense. — <br /> �V — <br /> r <br /> — v j <br /> 2Q 63 " <br /> ML SILT (ML)- brown (fOYR 5/3), wet,hard: 90X silt, 10% 4 — �+, <br /> clay, <br /> Bottom of boring at 2t fee#bgs. f <br /> (w =Converted to equivalent standard penetration ) <br /> blows/foot.) f <br /> 24- <br /> 28-1 <br /> 428 j <br /> JOB NUMBER: 140193,12 <br /> Page 1 of 1 <br />