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---------- -------- ---------- TABLE 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES ENTERPRISE INVESTMENTS (Former J.B. Murphy Trucking) 355 Enterprise Place, Tracy, California (µg/1) I Sate Sample Gasoline'l Diesel 4 as TPH as 1 (8020)MTBE BenzeneEthyl- benzene I Toluene I Xylenes MTBE DIFE ET13E I TAME TBA EDB 112-DCA Location Date EPA Methods 901 5NV8020/8260B* EPA Method 8260E 02/11/02 230 - <50 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1-0 <1.0 <1.0 <25 <0.5 <0.5 05/13/02 <50 <50 <1.0 <0.5 <0-5 <0.5 <1.0 <5.0 <1.0 <.0 <1.0 <25 <0.5 <0.5 08/13/02 <50 <50 <1.0 <0.5 <0.5 <0-5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0-5 11/19/02 <50 <50 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1-0 <25 <0-5 <0.5 03/21/03 <50 <50 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0-5 MW-5 05/30/03 <50 <50 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0.5 08/14/03 <50 <50 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0.5 07/20/04 130 <50 - <0.5 <0.5 <0.5 <0.6 <1.0 <1-0 <1.0 <1.0 <10 <0-5 <0.5 10/13/04 <50 <50 - <0.5 <0.5 <0.5 <0.6 <1.0 <1.0 <1.0 <1.0 <10 <0.5 <0.5 02/10/05 <50 <50 - <0.5 <0.5 <0.5 <0.6 <1.0 <1.0 <1.0 <1.0 <10 <0.5 <0.5 06/24/05 <50 <50 - <0.5 <0.5 <0.5 <0-6 <1.0 <1.0 <1.0 <1.0 <10 <0.5 <0.5 109/01/05 <50 <50 1 - <0.5 <0.5 1 <0.5 <0.6 <1.0 <1.0 <1.0 <1.0 <10 <0.5 <0.5 02/11/02 360 <50 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0.5 05/13/02 100 <50 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0-5 08/13/02 290 280-0 <1-0 <0-5 <0.5 <0.5 <1.0 <5-0 <1.0 <1.0 <1.0 <25 <0.5 <0.5 11119/02 160 800 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0.5 03/21/03 110 920 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0.5 EW-1 05/30/03 <50 <50 <1.0 <0-5 <0.5 <0.5 <1.0 <5-0 <1.0' <1-0 <1.0 <25 <0.5 <0.5 08/14/03 <50 <50 <1.0 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 <25 <0.5 <0.5 07/20/04 <50 <50 - <0.5 <0-5 <0.5 <0.6 <1.0 <1.0 <1.0 <1.0 <10 <0.5 <0-5 10/13/04 <50 <50 <0.5 <0.5 <0.5 <0.6 <1.0 <1.0 <1.0 <1.0 <10 <0.5 <0.5 02/10/05 <50 <50 <0.5 <0.5 <0.5 <0.6 <1.0 <1.0 <1.0 <1.0 <10 <0.5 <0.5 06/24/05 <50 <50 <0.5 <0.5 <0.5 <0-6 <1.0 <1.0 <1.0 <1.0 <10 <0.5 <0.5 .09/01/05 , <50 <50 <0.5 <0-5 , <0.5 <0-6 <1.0 I <1.0 I <1.0 <1.0 <IL_i <0.5 <0.5 Notes: Rg/l: micrograms per liter MTBE- methyl tertiary-butyl ether TBA: tertiary-butyl alcohol EPA Method 8260B used after 8/14/03 DIPE: di-isopropyl ether EDB: 1,2-dibromoethane not analyzed ETRE: ethyl tertiary-butyl ether 1,2-DCA: 1,2-dichloroethane TPH: total petroleum hydrocarbons TAME. tertiary-amyl methyl ether Advanced GeoEnvironmental,Inc. 7-7� 77,7= ... ......