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i <br /> GEOPROBE <br /> SAMPLE COLLECTION AND DESCRIPTION LOG <br /> SITE Agricultural Commissioner's Office BORING ID. SB-1I <br /> 503 East 10th Street <br /> Tracy, California Drilling Date December 19, 1997 <br /> SAMPLE PID <br /> SAMPLE SAMPLE DEPTH SAMPLE READING <br /> ID TIME (Feet) TYPE ANALYSES (ppm) USCS SOIL DESCRIPTION <br /> NOT 00 CL SILTY CLAY Silty clay, light brown, <br /> SB11-5 1330 5 SOIL ANALYZED moist, stiff, no petroleum odor <br /> CLAYEY SILT Clayey silt with some <br /> SB11-10 1340 10 SOIL ANALYZED 00 ML fine sand, light brown, wet, medium <br /> stiff, no petroleum odor <br /> NOT SILTY SAND Silty fine sand with <br /> S611-15 1350 15 SOIL ANALYZED 00 SM some clay, light brown, wet, medium <br /> dense, no petroleum odor <br /> TPHD <br /> SB11-GW 1400 7 GROUND TPHG NA NA NA <br /> WATER BTEX <br /> MTBE <br /> Terminated sod boring at 15 feet bgs <br /> Sealed borehole with neat cement <br /> using tremae method <br /> NOTES PID= Photoiornzation Detector Geologist Joseph Ramage(RG#5856) _ <br /> ppm =parts per million Ramage Environmental <br /> USCS = Unified Sod Classification System <br /> bgs= below ground surface Drilling Rig Geoprobe 5400 <br /> NA= Not Applicable Driller David Fisch(C-57#683865) _ <br /> Fisch Environmental <br /> TPHD=Total Petroleum Hydrocarbons as Diesel <br /> TPHG =Total Petroleum Hydrocarbons as Gasoline <br /> BTEX= Benzene, Toluene, Ethylbenzene,Xylenes <br /> MTBE= Methyl tertiary butyl ether <br /> r <br />