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Stantec Consulting <br /> Neg <br /> Project# 211602258.400.400 <br /> 666 West Weber Avenue, Stockton, California <br /> TEG Project#10721F <br /> BTEX, Naphthalene, Oxygenates & TPH(EPA method 82608) 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: 7/21/11 7/21/11 7/21/11 7/21/11 7/21/11 7/21/11 <br /> COLLECTION TIME: 12:40 09:38 10.01 10:01 14:34 13:07 <br /> DILUTION FACTOR: 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(DIPE) 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 82 420 440 nd 15 <br /> Methane 1000 nd 62000 83000 82000 nd nd <br /> 1,1 Diflouroethane (leak check) 10 nd nd nd nd nd nd <br /> Surrogate Recovery: <br /> DBFM 98% 119% 81% 81% 80% 101% <br /> 1,2-DCA-d4 114% 114% 109% 111% 123% 121 <br /> 1,4-BFB 119% 109% 98% 100% 129% 126% <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 /> 11350Monier Park Place, Rancho Cordova, CA 95742 Phone: (916) 853-8010 Fax: (916) 853-8020 <br />