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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: APSV-8 APSV-9 APSV-10 APSV-10 UPSV-1 UPSV-2 <br /> dup <br /> PURGE VOLUME: 7 7 7 7 7 7 <br /> AMOUNT PURGED(ml): 213 312 196 196 364 364 <br /> COLLECTION DATE: 7/19/13 7/19/13 7/19/13 7/19/13 7/19/13 7/19/13 <br /> COLLECTION TIME: 12:22 09:06 09:31 09:31 12:49 13:12 <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(D1PE) 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 140 140 nd nd <br /> Methane 1000 nd nd 16000 15000 nd nd <br /> 1,1 Diflouroethane(leak check) 10 nd nd nd nd nd nd <br /> Surrogate Recovery: <br /> DBFM 91% 92% 87% 99% 87% 90% <br /> 1,2-DCA-d4 85% 82% 84% 91% 83% 89% <br /> 1,4-BFB 73% 86% 91% 99% 72% 79% <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 2 <br /> 11350 Monier Park Place, Rancho Cordova, CA 95742 Phone [9161 859-8010 • Fax [9161 859-8020 <br />