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TABLE 3 <br /> GROUNDWATER ANALYTICAL SUMMARY <br /> Former ARCO Statton No 6100 <br /> 25775 Patterson Pass Road <br /> Tracy,California <br /> Ethyl- Total <br /> Sample Date GRO+ Benzene Toluene benzene Xylenes MTBE <br /> ID Collected ( ) ( ) 4L/L) ( /L) ) ( ) <br /> VW-6 02/08/01 12,100 4,440 <100 <100 715 160 <br /> 11/06/01 24,000 12,000 <100 <100 <100 230 <br /> 03/26/02 <10,000[2] 5,100 <100 <100 <100 270 <br /> 06/21/02 <20,000 7,000 <200 <200 <200 330 <br /> 09/18/02 9,800 5,500 28 <25 40 300 <br /> 12/23/02 20,000 8,600 <50 <50 <50 310 <br /> 03/24/03 <50,000 5,100 <500 <500 <500 2,800 <br /> 06/16/03 11,000[3] R 6,900 A <25 A <25 A 50 A 170 A <br /> 09/19/03 9,500 A 5,900 A <250 A <250 A <250 A <250 A <br /> 03/16/04 15,000 A 4,800 A <100 A <100 A <l00 A 170 A <br /> 09/07/04 31,000 A 16,000 A 1,200 A 380 A 1,100 A <250 A <br /> 12/21/04 8,400[8] 1 5,000 A <250 A <250 A <250 A <250 A <br /> 03/15/05 2,900 A 1,900 A <50 A <50 A 83 A 170 A <br /> 09/19/05 <5,000 A 3,700 A <50 A <50 A 64 A 170 A <br /> 12/19/05 <5,000 A 330[13] J <50 A <50 A 73 A 83 A <br /> VW-14 09/19/05 30,000 A 910 A 4,400 A 71 A 5,800 A <50 A <br /> VW-20 06/16/03 63,000 A 13,000 A 13,000 A 1,100 A 10,000 A <250[l] J <br /> Arco 6100_Quarterly_Data Page 7 of 9 5TRA rU5 <br />