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GEOPROBE <br /> SAMPLE COLLECTION AND DESCRIPTION LOG <br /> SITE Agricultural Commissioner's Office BORING ID G-10 <br /> 392 South Moffat Blvd <br /> Manteca, California Drilling Date December 5, 2002 <br /> SAMPLE PID <br /> SAMPLE SAMPLE DEPTH SAMPLE READING <br /> ID TIME (Feet) TYPE ANALYSES (ppm) USCS SOIL DESCRIPTION <br /> G10-5 1115 5 SOIL NA 00 SM SILTY SAND Silty fine sand, medium brown, <br /> dry, no odor <br /> SAND Poorly-graded fine sand light orange- <br /> G10-10 1120 10 SOIL NA 0 0 SP beige dry, no odor <br /> G10-15 1125 15 SOIL NA 00 SP SAND Poorly-graded fine-medium sand, light <br /> beige,dry, no odor <br /> TPHD SILTY CLAY Medium gray-tan, moist, very <br /> G10-20 1130 20 SOIL TPHGIBTEX 94 CL <br /> 5 OXYS, 12-DCA slight petroleum odor <br /> TPHD SILTY CLAY Medium gray-brown moist very <br /> G10-25 1140 25 SOIL TPHGIBTEX 14 CL <br /> 5 OXYS, 12-DCA slight petroleum odor <br /> TPHD Static groundwater at 21 4 feet Collected <br /> G10-GW 1220 21 4 GROUND TPHGIBTEX _ groundwater-grab sample with temp well <br /> WATER 5 OXYS, 12-DCA Terminated soil boring at 25 feel <br /> Sealed borehole with neat cement, by tremae <br /> NOTES PID= Photo Ionization Detector Geologist Joseph Ramage R G #5856 <br /> ppm= parts per million Ramage Environmental <br /> USCS= Unified Sail Classification System <br /> Sample depths are in feet below ground surface Rig Geoprobe 6600 Direct Push <br /> Driller Rick Bertolino <br /> TPHD =Total Petroleum Hydrocarbons-as-Diesel Fisch Environmental (C-57#683865) <br /> TPHG =Total Petroleum Hydrocarbons-as-Gasoline <br /> BTEX= Benzene,Toluene, Ethylbenzene,Xylenes <br /> 5 OXYs=Five Oxygenates (MTBE, ETBE,DIPS,TAME,TBA) <br /> ' 12-DCA= 1,2-Dichloroethane <br /> NA= Not Submitted for Analysis <br /> 1 <br />