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TABLE 3 ANALYTICAL RESULTS OF GROUND WATER SAMPLES Former CURTISS PONTIAC BUICK 2450 Toste Road, Tracy, California (Ng/l) Well I.D. Sample TPH-g TPH-d MTBE TBA DIPE ETBE TAME 1,2 DCA EDB Benzene Toluene Ethyl- Xylenes Date benzene 02/27/98 4,300 1,400 <5.0 <5.0 <5.0 <5.0 <5.0 NA NA 200 41 2.9 560 C 09/28/98 220 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA 15 3.7 4.5 1.7 l 12117/98 58 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA 4.2 3.1 2.0 3.0 03/25/99 71 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA 0.81 0.93 1.2 0.82 06/21/99 200 68 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA 16 21 4.4 21 09/21/99 63 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA 5.7 3.9 <0.5 2.5 12/07/99 <50 <50 <1.0 <5.0 <1.0 <1.0 <1,0 NA NA 2.1 0.83 <0.5 1.7 03/17/00 <50 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA <0.5 <0.5 <0.5 <0.5 07/17/00 <50 <50 NA NA NA NA NA NA NA 1.2 <0.5 <0.5 <0.5 10/17/00 <50 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA 3.1 4.3 0.88 4.7 01/30/01 <50 52 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA 1.2 0.56 0.85 2.4 MW-1A 04/25/01 <50 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA <0.5 <0.5 <0.5 <0.5 07/27/01 <50 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA <0.5 <0.5 <0.5 <0.5 10/24/01 <50 <50 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA <0.5 <0.5 <0.5 <0.5 01/23/02 <50 100 <1.0 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 04/23/02 <50 <50 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 07/23/02 <50 <50 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 10/31/02 <50 <50 <0.5 <5.0 <0.5 <0.5 <0.5 NA NA <0.5 <0.5 <0.5 <0.5 03/12/03 <50 <50 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 07/16/03 2,8001 <50t <1.Ot <lot <1.Ot <1.Ot <1.Ot <0.5t <0.5t 29t 3.Ot <0.5t 61t 12/11/03 <50 <50 <1.0 <10 <1.0 <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.6 03/03/04 <50 <50 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 05/19/04 <50 <50 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Advanced GeoEnvironmental,Inc.