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1 <br /> Blakely Environmental Investigations Inc. <br /> Frontier Trucking - Tracy, Califronia <br /> TEG Project#20521E <br /> BTEX, OXYGENATES (EPA method 8260B) 8 TPH(EPA method 8015m) Analyses of SOIL <br /> SAMPLENUMBER: BOT WSS BOT WNS BOT ENS TOP NES TOP ESS TOP WSS <br /> 1 <br /> COLLECTION DATE: 5/21/02 521102 5/21102 521102 521/02 521102 <br /> ANALYSIS DATE: 5/22102 x22/02 522102 5/22/02 W2102 522102 <br /> RL FACTOR for VOCs: 1 200 80 1 1 1 <br /> RL <br />' Benzene (u94t9) 5.0 24 27000 1100 nd nd nd <br /> Toluene N91<9) 5.0 nd 330000 1200 nd nd nd <br /> Ethymenzene N94<9) 5.0 46 120000 18000 nd nd 10 <br />' Total Xylenes (UgX9) 5.0 8.1 730000* 24000 nd nd 15 <br /> Tert-Butanol(TBA) Ngxg) 50 nd nd nd nd nd nd <br /> Methyl-t-butyl ether(MTBE) P94<9) 5.0 640* 26000 19000 7.5 13 92 <br /> Diisopropyl ether(DIPS) (ug/K) 5.0 nd nd nd nd nd nd <br /> Ethyl-t-butyl ether(ETRE) Ng/K) 5.0 nd nd nd nd nd nd <br /> Tert-amyl methyl ether(TAME) (ugft) 5.0 nd nd nd nd nd nd <br /> TPH-gasoline range (C5-C11) (mg/Kg) 1.0 3.2 2500 120 nd nd nd <br /> TPH-diesel range (C12-C24) (mgVg) 1.0 32 3000 340 nd nd 36 <br /> Surrogate Recovery: <br /> DBFM 108% 103% 102% 111% 104% 106% <br /> 1,2-DCA-d4 95% 88% 91% 103% 91% 94% <br /> 1 Toluene-I8 83% 130% 133% 109% 107% 126% <br /> 'nd' INDICATES NOT DETECTED AT LISTED REPORTING LIMITS <br /> RL' INDICATES REPORTING LIMITS <br /> 'RL FACTOR' MULTIPLICATION FACTOR USED TO ADJUST REPORTING LIMIT DUE TO SAMPLE DILUTION <br /> —INDICATES COMPOUND ABOVE CALIBRATION RANGE <br /> ANALYSES PERFORMED IN TEG-Northern California's DHS CERTIFIED LAB <br /> ANALYSES PERFORMED BY.- Mr. Leif Jonsson page 2 <br /> i11350 Monier Park Place, Rancho Cordova, CA 95742 Phone: (916) 853-8010 Fax: (916) 853-8020 <br />