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Gettler-Ryan, Inc. Log of Boring MW-13 <br /> PROJECT: Tosco (78) Service Station No. 11195 LOCATION: 16500 South Interstate 5, Lathrop, CA <br /> GR PROJECT NO. : 140193.12 CASING ELEVATION: 15.23 feet (MSL) <br /> DATE STARTED: 05/29/02 WL (ft. bgs): 10.0 DATE: 05/29/02 TIME; ADO <br /> DATE FINISHED: 05/29/02 WL (ft. bgs): 8.03 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 Smith <br /> W <br /> Eo <br /> * 0 co <br /> LL <br /> n J LU = GEOLOGIC DESCRIPTION WELL DIAGRAM <br /> F v a a. 43- <br /> CL v o o E ¢ -' <br /> o-~ a m au� caor <br /> n can <br /> SM SILTY SAND (SM) - brown (1OYR 5/3), moist, loose; <br /> 70% sand, 20% silt, 10% gravel. v <br /> � w <br /> b U <br /> V <br /> aJ 00 <br /> 7i <br /> SP-SMPOORLY GRADED SAND WITH SILT (SP-SM) - lightCU <br /> 4 olive brown (2.5Y 5/4), moist, medium dense; 90% fine - - o <br /> sand, 10% silt, = c <br /> 0 17 MW-13 <br /> a <br /> S-5.5 N <br /> $ I — <br /> 0 23 SW-SM WELL GRADED SAND WITH SILT (SW-SM) - light olive <br /> Q brown (2.5Y 5/4), wet, medium dense; 90% sand, 10% <br /> silt <br /> 0 <br /> 12 a o <br /> o <br /> a - m <br /> a o <br /> o � <br /> 0 4 7 °' <br /> c <br /> is <br /> Becomes dense. <br /> N <br /> 20 53 <br /> ML SILT (ML)- brown (1OYR 5/3), wet, hard; 90% silt, 10% <br /> clay. <br /> Bottom of boring at 21 feet bgs, <br /> (* = Converted to equivalent standard penetration <br /> blows/foot.) <br /> 24 <br /> 28 <br /> JOB NUMBER: 14003.12 Page 1 of 1 <br />