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T101 Pa 9 e 1 of 3 <br /> Summary of Results of Groundwater Monitoring <br /> Cooperatte Data for Chevron Station 9-8632 <br /> 575 Grant Line Rd ,Tracy, California <br /> Well Date of Well Depth to Groundwater TPHD TPH-G B T E X MTBE MTBE LAB <br /> Number Sampling Elevation Water Elevation (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) by 8020 by 8260 <br /> (Feet) (Feet) (Feet) (ug/L) (ug/L) <br /> MW 1 5/25/2001 2638 669 1969 ND<50 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 27 SEQ <br /> 7/31/2001 2638 715 1923 ND<50 ND<50 ND<O 5 ND<O 5 ND<0 5 ND<0 5 14 SEQ <br /> 10/30/2001 2638 665 1973 ND<50 140 1 1 ND<0 5 ND<O 5 ND<i 5 29 --- LAN <br /> 1/29/2002 2638 628 2010 150 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 5 15 LAN <br /> 4/30/2002 2638 664 1974 120 ND<50 ND<O 5 062 ND<O 5 ND<1 5 26 --- LAN <br /> i <br /> 7/30/2002 2638 689 1949 --- - -- --- - <br /> 10/31/2002 2638 680 1958 --- ND<50 ND<O 5 ND<0 5 ND<0 5 ND<0 5 10 --- LAN <br /> 1/30/2003 2638 715 1923 ND<50 ND<50 ND<O 5 ND<0 5 ND<0 5 ND<O 5 — 13 <br /> MW 2 5/2512001 2690 692 1998 75 630 43 NU<O 6 130 98 140 --- <br /> 7/31/2001 2690 725 1965 ND<50 ND<50 ND<0 5 ND<O 5 ND<0 5 ND<0 5 140 i60 SEQ <br /> 10/30/2001 2690 687 2003 ND<50 ND<50 058 ND<O 5 ND<O 5 ND<1 5 130 140 LAN <br /> 1/29/2002 2690 642 2048 ND<50 150 22 ND<O 5 211 52 41 LAN <br /> 4/30/2002 2693 685 2008 110 390 36 ND<O 5 52 10 220 --- LAN <br /> 7/30/2002 2693 711 1982 --- -- -- --- -- <br /> 10/31/2002 2693 700 1993 --- ND<50 ND<O 5 ND<O 5 ND<O 5 ND<0 5 250 --- LAN <br /> 1/30/2003 2693 732 1961 75 ND<50 ND<0 5 ND<0 5 ND<O 5 ND<0 5 -• 42 <br /> MW 3 5/25/2001 2719 712 20 07 530 2000 64 MD<10 85 38 710 780 <br /> 7/31/2001 2719 734 1985 ND<50 280 46 08 77 25 63 -- SEQ <br /> 10/30/2001 2719 707 2012 63 780 12 ND<O 5 13 49 65 --- LAN <br /> 1/29/2002 2719 662 2057 79 610 19 ND<O 5 15 29 100 97 LAN <br /> 4/30/2002 2723 704 2019 340 760 40 21 38 15 890 730 LAN <br /> 7/30/2002 2723 732 1991 -- - -- --- -- --- --- <br /> 10/31/2002 2723 721 2002 --- 880 18 07 7 3 220 --- LAN <br /> 1/3012003 2723 741 1982 190 140 <0 5 <0 5 09 <0 5 17 <br /> MW 4 6/25/2001 2672 566 2016 87 2200 ---77 14 81 214 ND<50 <br /> 7/31/2001 2672 679 1993 - 460 75 21 67 23 81 SEQ <br /> 10/30/2001 2672 653 2019 ND<50 74 14 ND<0 5 05 ND<1 5 19 LAN <br /> 1/29/2002 2672 610 2062 59 680 200 15 17 27 17 -- LAN <br /> 4/30/2002 2670 661 2019 63 230 73 074 37 26 13 --- LAN <br /> 7/30/2002 2670 678 1992 --- -- --- --- --- --- --- <br /> 10/31/2002 2670 667 2003 --- ND<50 3 ND<O 5 ND<O 5 ND<O 5 30 LAN <br /> 1/30/2003 2670 680 1990 53 120 34 ND<0 5 ND<0 5 ND<0 5 -- 10 <br /> MW 5 4/30/2002 26 98 430 2268 240 564 ND<O 5 ND<O 5 20 c2 <br /> 7/30/2002 2698 661 2037 --- --- --- --- --- --- ... -- ... <br /> 10/31/2002 2698 647 2051 --- ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<2 --- LAN <br /> 1/30/2003 2698 640 20,58 530 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<2 <br /> K WS SP ARCO1111941Quarterly\l QTR 03/11194 GWTables 1Q03 <br />