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Gettler-Ryan. Inc. Log of Boring SP-8 <br /> PROJECT: Tosco (76) Service Station No. 11195 LOCATION: 18500 South Interstate 5, Lathrop, CA <br /> GR PROSECT NO. : 140193.14 CASING ELEVATION: <br /> DATE STARTED: 12/11/02 WL (ft. bgs); 15.0 DATE: 12/11/02 TIME 09.30 <br /> DATE FINISHED: 12/11/02 WL (ft. bgs): DATE; TIME: <br /> DRILLING METHOD: 8 in. Hollow Stem Auger TOTAL DEPTH: 32 feet <br /> DRILLING COMPANY: Cascade Drilling GEOLOGIST: Andrew Smith <br /> o rn <br /> J GEOLOGIC DESCRIPTION WELL DIAGRAM <br /> F- d <br /> o � a <br /> W <br /> ru.� a o= o <br /> ID CL LO 0 CO <br /> SM <br /> Asphalt and base rock - 6 inches thick. n' � � <br /> SILTY SAND (SM) - strong brown (7.5YR 4/6), moist, medium dense; <br /> 70% sand, 30% silt. w <br /> U <br /> C <br /> 0 <br /> U <br /> U <br /> 12 C <br /> 6 p <br /> v N <br /> � 4l <br /> _ U t <br /> H <br /> x <br /> c <br /> m <br /> 18 <br /> ML SILT IML) - brown (40YR 5/3), wet, stiff; 95% silt, 5% clay. <br /> CL CLAY (CL) - brown (10YR 5/3), wet, very stiff; 100% clay, _ <br /> 24 <br /> _2 <br /> C <br /> 4] <br /> Q - - <br /> SP-SM POORLY GRADED SAND WITH SILT (SP-SM) - dark grayish brown o, 7. <br /> (10YR 4/2), wet, medium dense; 90% fine sand, 10% silt, o <br /> 30 <br /> Bottom of boring at 32 feet bgs. o <br /> [ = Converted to equivalent standard penetration blows/foot.) <br /> a <br /> 36 <br /> r <br /> 42 <br /> JOB NUMBER: 140193.14 page 1 0f 1 <br />