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TABLE 3 <br /> SUMMARY OF GROUNDWATER ANALYTICAL DATA <br /> Former Cheaper Store#37, 15 East Grant Line Road, Tracy, CA <br /> { Page 4 of 4 <br /> (Reported In u <br /> Sample DateTPHg Benzene Toluene Ethyl Xylenes MTBE TBA DIPE ETBE TAME 1,2-DCA EDB <br /> ID Benzene <br /> MW8 09/26/95 <50 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA NA NA <br /> 02/23/99 <50 <0.5 <0.5 <0.5 <0.5 6.1 NA NA NA NA NA NA <br /> 06/27/99 <50 <0.5 <0.5 <0.5 <0.5 2.0 NA NA NA NA NA NA <br /> 1 <br /> 08/31/99 <50 <0.5 <0.5 <0.5 <0.5 8.0 NA NA NA NA NA NA <br /> iL.rr 02/03/00 <50 <0.5 <0.5 <0.5 <0.5 <1.0 <5.0 <1.0 <1.0 <1.0 NA NA <br /> 11/19/00 <50 1.2 1.2 <0.5 0.93 19 <5.0 10.0 <5.0 <5.0 <1.0 <1.0 <br /> 02/23/01 57 6.5 7.9 1.2 6.8 40 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <br /> 05/19/01 100 2.7 53.4 <0.5 5.1 58 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <br /> 08/18/01 89 2.0 4.5 <0.5 1.5 54 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <br /> 11/17/01 <50 1.6 2.2 <1.0 1.7 78 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <br /> 02/24/02 <50 <0.5 <0.5 <0.5 <1.0 120 <5.0 <1.0 <0.5 <0.5 <0.5 <0.5 <br /> 02/17/03 <50 <0.5 <0.5 <0.5 <1.0 160 52 <1.0 <0.5 1.5 <0.5 <0.5 <br /> 05131/03 250 2.5 2.5 2.5 <5.0 590 25 <5.0 2.5 5.8 2.5 2.5 <br /> 09/24/03 200 9.7 21 4.0 18 100 <5.0 <1.0 <0.5 0.97 <0.5 <0.5 <br /> 11/26/03 <50 <0.5 <0.5 <0.5 <1.0 240 <0.5 <1.0 <0.5 0.8 <0.5 <0.5 <br /> Notes: <br /> TPHg denotes Total Petroleum Hydrocarbons as gasoline analyzed by EPA Method 5030/8015 <br /> MTBE denotes methyl tertiary butyl ether analyzed by EPA Method 8260 <br /> DIPE denotes di-isopropyl ether analyzed by EPA Method 8260 <br /> TAME denotes tertiary amyl methyl ether analyzed by EPA Method 8260 <br /> 444iii TBA denotes tertiary butyl ether analyzed by EPA Method 8260 <br /> ETBE denotes ethyl tertiary butyl ether analyzed by EPA Method 8260 <br /> 1,2-DCA denotes 1,2-dichloroethane analyzed by EPA Method 8260 <br /> EDB denotes ethyl dibromide analyzed by EPA Method 8260 <br /> NS denotes not sampled <br /> NA denotes not analyzed <br /> Wells MW2 and MW3 are monitored annually during the second quarter <br /> S:\Enviromental\25847\37 Tracy\site conceptual modellGwtab_gm <br />