Laserfiche WebLink
Gettler-Ryan. Inc. Log of Boring MW--21 <br /> PROJECT: Tosco (78) Service Station No. 11195 LOCATION: 18500 South Interstate 5, Lathrop, CA <br /> GR PROJECT N0, : 140193.14 CASING ELEVATION: 17.9 feet (MSL) <br /> DATE STARTED: 12110/02 WL (ft. bgs): 15.0 DATE: (2/10/02 TIME: 13:35 <br /> DATE FINISHED: 12/10/02 WL (ft. bgs); 10.09 DATE: 12/11/02 TIME: 10:15 <br /> DRILLING METHOD: 8 in. Hollow Stem Auger TOTAL DEPTH: 20 feet <br /> DRILLING COMPANY: Cascade Drilling GEOLOGIST: Andrew Smith <br /> w <br /> * m <br /> cD <br /> D z o Ln WELL DIAGRAM <br /> CL = w w J GEOLOGIC DESCRIPTION <br /> a a a <br /> ao �o x M: ¢ <br /> Lu � a a m o <br /> o�-' o~ m m CO co [n <br /> Asphalt and base rock - 6 inches thick. T S <br /> SM SILTY SAND WITH GRAVEL (SM) - brown (7,SYR 4/3), ^ <br /> moist, dense; 70% fine sand, 15% gravel, 15% silt. a 'Q) <br /> d <br /> N�h v m a <br /> �4f U U <br /> SP-SM POORLY GRADED SAND WITH SILT (SP-SM) - brown m = <br /> (10YR 4/3), moist, medium dense; 90% fine sand, 10% <br /> silt, trace pyrite. c <br /> 0 <br /> c <br /> 0 21 — A <br /> $ SP POORLY GRADED SAN Q {SP1 - brown (10YR 413} <br /> moist, medium dense; 100% fine to medium sand, trace _ <br /> r pyrite. <br /> 18 MW-21- <br /> S (10) ra <br /> y <br /> — ro <br /> 12 <br /> b — � <br /> Cb — o <br /> o � <br /> w — <br /> U - — <br /> 0 24 MW-21- Color changes to dark grayish brown (10YR 4/2), <br /> SW WELL-GRADED SAND (SW) - grayish brown (10YR — <br /> 5/2), wet, medium dense; 100% fine to coarse sand. <br /> 0 21 In — <br /> 20 Bottom of boring at 20 feet bgs. <br /> ( = Converted to equivalent standard penetration <br /> blows/foot.) <br /> 24 <br /> 28 <br /> JOB NUMBER: 140193.14 Page 1 0f 1 <br />