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Stantec Consulting <br /> Project# 211602384.600 <br /> 666 West Weber Avenue, Stockton, California <br /> TEG Project#30719F <br /> BTEX, Naphthalene, Oxygenates & TPH(EPA method 8260B) Analyses of SOIL VAPOR in ug/L of Vapor <br /> METHANE Analyses of SOIL VAPOR in ppmV <br /> SAMPLE NUMBER: Blank APSV-1 APSV-3 APSV-5 APSV-6 APSV-7 <br /> PURGE VOLUME: 7 7 7 7 7 <br /> AMOUNT PURGED(ml): 336 177 242 336 213 <br /> COLLECTION DATE: 7/19/13 7/19/13 7/19/13 7/19/13 7/19/13 7/19/13 <br /> COLLECTION TIME: 08:45 10:19 10:43 11:06 11:30 11:32 <br /> DILUTION FACTOR(VOCs): 1 1 1 1 1 1 <br /> RL <br /> Benzene 0.10 nd nd nd nd nd nd <br /> Toluene 0.20 nd nd nd nd nd nd <br /> Ethylbenzene 0.10 nd nd nd nd nd nd <br /> Total Xylenes 0.10 nd nd nd nd nd nd <br /> Naphthalene 0.10 nd nd nd nd nd nd <br /> Tert-Butanol(TBA) 1.0 nd nd nd nd nd nd <br /> Methyl-t-butyl ether(MtBE) 0.10 nd nd nd nd nd nd <br /> Diisopropyl ether(DIPS) 0.10 nd nd nd nd nd nd <br /> Ethyl-t-butyl ether(EtBE) 0.10 nd nd nd nd nd nd <br /> Tert-amyl methyl ether(TAME) 0.10 nd nd nd nd nd nd <br /> TPH 10 nd nd nd nd nd nd <br /> Methane 1000 nd nd nd nd nd nd <br /> 1,1 Diflouroethane(leak check) 10 nd nd nd nd nd nd <br /> Surrogate Recovery: <br /> DBFM 95% 87% 84% 90% 83% 84% <br /> 1,2-DCA-d4 90% 81% 81% 86% 74% 88% <br /> 1,4-BFB 91% 74% 74% 77% 66% 76 <br /> 'nd' Indicates not detected at listed reporting limits <br /> 'RL' Indicates reporting limit in ug/L of Vapor at a dilution factor of 1 (Methane in parts per million by Volume(ppmV)) <br /> Analyses performed by: Mr. Leif Jonsson <br /> page 1 <br /> 11850 Monier Park PIdEe. Rancho Cordova, CA 95742 Phone [916] 858-8010 • Fax [916) 858-8020 <br />