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TABLE 3
<br /> GROUNDWATER ANALYTICAL SUMMARY
<br /> Former ARCO Station No 6100
<br /> 25775 Patterson Pass Road
<br /> Tracy,California
<br /> Ethyl-
<br /> Total
<br /> Sample Date GRO+ Benzene Toluene benzene Xylenes MTBE
<br /> ID Collected {Ag/L) (Ag/L) (REX) ( L) ( g/L) {µ L)
<br /> VW-3 02/08/01 33,800 2,540 2,820 194 5,550 1,000
<br /> 03/26/02 43,000 6,000 4,700 930 8,800 490
<br /> 03/16/04 24,000 A 3,100 A 870 A <50 A 3,600 A 180 A
<br /> 06/22/04 86,000 A 22,000 A 22,000 A 880 A 12,000 A 970 A
<br /> 09/07/04 27,000 A 4,100 A 2,400 A 200 A 4,600 A 360 A
<br /> 12/21/04 47,000[8] J 5,400[7] J 4,800 A 650 A 10,000 A 170 A
<br /> 03/I5/05 21,000 A 740 A 1,600 A 270 A 6,900 A <50 A
<br /> 06/21/05 15,000 A 1,000 A 410 A <25 A 3,600 A 180[10] 1
<br /> 09/19/05 35,000 A 1,700 A 1,900 A 6,600 A 12,000 A 120 A
<br /> VW-4 02/08/01 605,000 33,900 27,500 3,070 24,200 1,890
<br /> 09/18/02 160,000 21,000 24,000 2,900 26,000 1,200
<br /> 06/22/04 78,000 A 9,300 A 10,000 A 1,600 A 23,000 A <250 A
<br /> 06/21/05 110,000 A 7,900 A 8,800 A <500 A 24,000 A <500 A
<br /> VW-5 02/08/01 <50 0 225 <0 500 <0 500 0 574 9 41
<br /> 11/06/01 300 29 <0 50 0 65 <0 50 3 3
<br /> 03/26/02 <50 <0 50 <0 50 <0 50 <0 50 67
<br /> 06/21/02 60[2] 2 1 <0 50 052 <0 50 16
<br /> 06/17/03 220 A 14 A <0 50 A <0 50 A 098 A <0 50 A
<br /> 12/23/03 86 A 063 A <0 50 A <0 50 A 058 A <0 50 A
<br /> 03/16/04 180 A <0 50 A <0 50 A <0 50 A <0 50 A <0 50 A
<br /> 12/21/04 57[8] 1 050 A <0 50 A <0 50 A 053 A <0 50 A
<br /> 03/15/05 55 A <0 50 A <0 50 A <0 50 A <0 50 A 6 0 A
<br /> 06/21/05 <50[9] J <0 50[9] J <0 50[9] J <0 50[9] 1 <0 50[9] 1 12[9,101 J
<br /> 09/19/05 <250 A 94 A 94 A <2 5 A 48 A <2 5 A
<br /> Arco_6100_Quarterly_Data Page 4 of 7 5TRATU5
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