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TABLE Al ANALYTICAL RESULTS OF SOIL SAMPLES DEN'S AUTO REPAIR 308 South El Dorado Street, Stockton, California (mg/kg) EPA 8015 EPA Method 8021/8260 Sample ID Date Ethyl- TPH-g Benzene Toluene Xylenes MTBE DIPE ETBE TAME TBA EDB 1,2-DCA benzene i MW4-65 09-13-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 MW4-80 09-13-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 MW4-95 09-13-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 W4-110 09-13-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 W4-115 09-13-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 MW6-15 09-14-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 MW6-25 09-14-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 MW6-30 09-14-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 MW6-35 09-14-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 EW6 09-14-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 1 09-14-05 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.01 <0.01 <0.10 <0.005 <0.005 Notes: mg/kg: milligrams per kilogram EDB: 1,2-dibromoethane s NA: not analyzed 1,2-DCA: 1,2-dichloroethane TPH-g: total petroleum hydrocarbons quantified as gasoline b: Heavier gasoline range coumpounds are significant(aged gasoline?). MTBE: methyl tertiary-butyl ether d: gasoline range compounds have broad chromatographic peaks(biologically altered gasoline?). DIPE: di-isopropyl ether a: unmodified or weakly modified gasoline is significant. ETBE: ethyl tertiary-butyl ether j: no recognizable pattern. TAME: tertiary-amyl methyl ether Borings B4 thru 136 were completed as MW-1 through MW-3. TBA: tertiary-butyl alcohol Advanced GeoEnvironmental,Inc.