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T1 .Groundwater Monitoren to and Analytical Results '
<br /> Tosco(Circle K)Unit#01205
<br /> 16470 Cambridge Street
<br /> Lathrop,California
<br /> WELL IDI DATE DTW S1 GWE TPH-G B T E X MTBE
<br /> TOC*(fl`) (ft) (ft bgs) (ft) (Ppb) (ppb) (Ppb) (Ppb) (Ppb) (Ppb)
<br /> MW-1
<br /> 1762 10/08/98 1127 6 0-26 0 635 29,000 180 2,500 3,200 13,000 3,400
<br /> 01/25/99 1173 5 89 40,000 320 1,800 2,500 12,000 22,000
<br /> 04/29/99 1021 741 380 69 27 94 100 51
<br /> 07/16/99 1108 654 67,000 380 1,500 2,900 17,000 1,4001820'
<br /> 10/21/99 1143 619 31,0007 110 1,100 1,900 11,000 320/250'
<br /> 01/31/00 1050 712 48,0007 100 2,900 2,500 16,000 2,300/2,200'
<br /> 04/10/00 870 892 45,600 ND 1,570 2,660 15,000 2ND/186'
<br /> 07/05/00 965 797 29,400' 704 224 1,910 8,910 2ND/ND23
<br /> 10/20/00 1153 609 41,8008 105 1,210 2,980 14,300 ND/3 0'
<br /> 01/08/01 1200 562 18,000' ND 530 990 6,000 2ND/29'
<br /> 04/26/01 1141 621 19,300' 984 814 1,400 7,140 2ND/60 63
<br /> 07/19/01 1232 530 55,0008 160 1,900 2,700 15,000 2NDIND23
<br /> 10/25/01 1379 383 13,000' 60 580 1,000 5,600 <200/<20'
<br /> 01/29/02 1305 457 11,0009 50 480 700 3,600 <2001<20'
<br /> 04/29/02 1289 473 5,7008 41 390 340 2,000 <50/<10'
<br /> MW-2
<br /> 1750 10/08/98 11 17 6 0-26 0 633 18,000 210 100 1,600 1,700 4,0003
<br /> 01/25/99 1164 586 28,0001 270 410 2,400 6,300 79,000
<br /> 04/29/99 1012 738 2904 090 26 11 29 22
<br /> 07/16/99 1098 652 22,000 160 130 1,200 3,300 1,4001560'
<br /> 10/21/99 1135 615 25,0007 110 180 940 2,400 2ND/713
<br /> 01/31/00 1043 707 47,0007 280 360 2,800 9,800 12,00019,8003
<br /> 04/10/00 859 891 31,3007 335 1,220 2,390 8,660 2ND/532'
<br /> 07/05/00 955 795 5,600' 222 922 537 446 1781237'
<br /> 10/20/00 1144 606 13,300' 367 ND 875 282 2ND/4 4'
<br /> 01/08/01 11 92 558 10,000' 73 N D 2 840 520 2ND/28'
<br /> 04/26/01 1133 617 10,200' 873 ND2 817 341 2ND/36 73
<br /> 07/19101 1223 527 8,400' 30 ND 260 200 2ND/7 6'
<br /> 01205 xls/#180183 1 As of 04/29/02
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