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Gettler—Ryan. Inc. Log of Boring MW-17 <br /> f`._ <br /> '" PROJECT: Tosco (76) Service Station No. 11195 LOCATION: 16500 South Interstate-5, Lathrop, CA <br /> GR PROJECT NO. : 140193.12 CASING ELEVATION: 13.76 feet (MSL) <br /> DATE STARTED: 05/28/02 WL (ft. bgs): 8.0 DATE: 06/28/02 TIME: 10.00 <br /> DATE FINISHED: 05/28/02 WL (ft. bgs): 9.49 DATE: 05/29/02 TIME: 08.•10 <br /> DRILLING METHOD: 8 in. Hollow Stem Auger TOTAL DEPTH: 21 feet <br /> - = DRILL-ING-1G–OMP--ANY: =Woodward=Drilling __—_-B.E_OLOGIST: -_Andrew Smith <br /> w <br /> * <br /> in <br /> F-: o ur <br /> z J N WELL DIAGRAM <br /> CL w -A GEOLOGIC DESCRIPTION <br /> CL (n J 2 U <br /> QJ fT d d d J <br /> a U <br /> Ul w J Q Q OC O <br /> Asphalt over base rock - 7 inches thick. <br /> SP POORLY GRADED SAND (SP) - dark brown (1OYR 3/3), U <br /> moist, medium dense; 95% fine sand, 5% silt, trace of <br /> a <br /> gravel. o – <br /> a w =- = t EU <br /> bCU <br /> 4 v -- — m <br /> C <br /> 0 13 <br /> SM SILTY SAND (SM) - brown (7.5YR 5/3), moist, dense; — <br /> 80-85% sand, 15-20% silt. _ <br /> 35 MW-17 — <br /> S-7.5 Q <br /> ML SILT (ML)- brown (10YR 5/3), moist, very stiff; 90% _ <br /> silt, 10% fine sand. o = <br /> 26 <br /> O ro <br /> U m <br /> 12 C <br /> 4 <br /> m _ o <br /> CU <br /> ' J <br /> � — m <br /> v — <br /> c — <br /> t <br /> U _ <br /> 30 — <br /> Sw WELL-GRADED SAND (SW)- gray (5Y 5.0, wet, <br /> 16 medium dense; 100% sand. — <br /> 22 =_ <br /> ML SILT WITH SAND (ML) - olive gray (5Y 5/1), very — <br /> 20 stiff; 75% silt, 15% fine to medium sand, 10% clay. <br /> Bottom of boring at 20 feet bgs. <br /> (* = Converted to equivalent standard penetration <br /> blows/fool.) <br /> 24 <br /> 28 <br /> JOB NUMBER: 140193.12 Page 1 of 1 <br />