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Gettler-Ryan. Inc. Log of Boring MW-15 <br /> f:f' PROJECT: Tosco (76) Service Station No. 11195 LOCATION: 16500 South Interstate 5, Lathrop, CA <br /> GR PROJECT NO. : 140193.12 CASING ELEVATION: 14.94 feet (MSL) <br /> DATE STARTED: 05/28/02 WL (ft. bgs): 10.0 DATE: 05/28/02 TIME: 12.30 <br /> DATE FINISHED: 05/28/02 WL (ft,bgs): 7.79 DATE: 05/29/02 TIME: 08:20 <br /> DRILLING METHOD: 8 in. Hollow Stem Auger TOTAL DEPTH: 21 feet <br /> -DR-I-L-L--NG=C-OMPANY:—kr dward-Drlling ---6E-OL-OGIZT Andrew-Smith <br /> w <br /> * m <br /> M <br /> H cn <br /> Ez a WELL DIAGRAM <br /> LL <br /> _, GEOLOGIC DESCRIPTION <br /> CL cn w w cn t) <br /> aj(D <br /> 0. d a <br /> O E < Q <br /> a J <br /> w a cc o <br /> m co cn <br /> SM SILTY SAND WITH GRAVEL (SM) - brown (10YR 5/3), ,; <br /> moist, loose; 65% sand, 20% silt, 15% medium gravel. <br /> 5P-SM POORLY GRADED SAND WITH SILT (SP=SM) - dark ry w <br /> 4 brown 00YR 3/3), moist, medium dense; 90% fine sand, - o <br /> 10% silt. m <br /> 14 MW-15 X — <br /> S--5.5 <br /> 8- <br /> 0 14 { — <br /> SW-SM V WELL-GRADED SAND WITH SILT (SW-SM) - brown _ <br /> 00YR 5/3), wet, medium dense; 90% sand, 10% silt. o <br /> o c <br /> o — m <br /> 12 Q — <br /> 4 — <br /> m _ o <br /> � I <br /> c <br /> 18 — <br /> 16 CL CLAY (CL) - grayish brown (2.5Y 5/2), wet, very stiff; <br /> 80% clay, 20% silt. N <br /> SWWELL-GRADED SAND ISW)- olive gray (5Y 5/2), wet, <br /> .`'• hard; 95% sand, 5% sill. <br /> 20 52 ro — <br /> Bottom of boring at 21 feet bgs. <br /> { = Converted to equivalent standard penetration <br /> blows/foot.) <br /> 24 <br /> 28 i <br /> JOB NUMBER: 140193.12 Page 1 0f 1 4 <br />