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TABLE 1-SUMMARY OF RESULTS OF GROUNDWATER SAMPLING <br /> BP OIL COMPANY SERVICE STATION NO 11194 <br /> 2375 TRACY BOULEVARD,TRACY,CALIFORNIA <br /> ALISTO PROJECT NO 10-085 <br /> WELL DATE OF CASING DEPTH TO PRODUCT GROUNDWATER TPH-0 B T E X MTBE DO LAB <br /> ID SAMPLING/ ELEVATION (a) WATER THICKNESS ELEVATION (b) (u9/A) (ugA) (ugA) (uw) (ug/I) (ugA) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) (Feet) <br /> MW-7 02/09/87 — — — -- 6300 420 92 — 1200 — --- SUP <br /> MW-7 09/21/87 --- — — ND<50 ND<0 5 ND<0 5 ND<0 5 — — SUP <br /> MW-7 10/20/87 — - -- -- 65 ND<05 ND<05 — 007 --- -- SUP <br /> MW-7 11/20/87 --- -- — -- ND<50 ND<05 ND<05 -- ND<05 — — SUP <br /> MW-7 03/13188 2650 675 — 1975 -- -- - - — -- _- — <br /> MW-7 03/23/88 2650 696 - 1954 57 59 ND<0 5 — 1 - — SUP <br /> MW-7 06/07/68 2650 675 — 1975 -- -- — <br /> MW-7 10/18188 2650 710 — 11940 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- --- SUP <br /> MW-7 02/15/90 2650 580 — 2070 3400 94 73 70 170 — --- SUP <br /> MW 7 04/26/90 2650 663 — 1987 --- -- -- --- -- — — <br /> MW-7 07/12/90 2650 666 — 1984 ND<50 ND<0 3 ND<0 3 ND<0 3 ND<0 3 — -- SUP <br /> MW-7 08/27/90 26 50 6 B6 1964 --- — <br /> MW 7 11/02/90 2650 703 — 1947 — <br /> MW-7 11/05/90 2650 704 — 1946 ND<50 ND<0 3 ND<0 3 ND<0 3 ND<0 3 - SUP <br /> MW-7 02/25/91 2650 630 — 2020 ND<50 ND<0 3 ND<0 3 ND<0 3 ND<0 3 — -- SUP <br /> MW-7 06/27/91 2650 714 -- 1936 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 — --- CHR <br /> MW-7 09/25/91 2650 850 --- 1800 ND<30 ND<0 30 ND<0 30 ND<0 30 ND<0 30 -- — SEQ <br /> MW 7 12/10/91 2650 698 - 1952 ND<30 ND<0 30 ND<0 30 ND<0 30 ND<0 30 -- — SEQ <br /> MW 7 03125192 2650 653 - 1997 ND<30 ND<0 30 ND<0 30 ND<0 30 ND<0 30 - — SEQ <br /> MW-7 06/25/92 2650 813 --- 1837 ND<30 ND<0 30 ND<0 30 ND<0 30 ND<0 30 -- --- SEQ <br /> MW-7 12/08/92 2650 689 -- 1961 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 —_ ANA <br /> MW-7 03/10/93 2650 654 --- 1996 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- PACE <br /> MW-7 06116/93 2650 643 — 2007 --- — — — -- -- — <br /> MW-7 10122/93 26 50 697 — 1953 -- — — - — --- <br /> MW-7 01/24/94 2650 683 -- 1967 --- <br /> MW-7 06/07/94 2650 729 -- 1921 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 — 34 PACE <br /> MW-7 09/13/94 2650 753 — 1897 — — <br /> MW-7 01/10/95 2650 622 — 2028 — --- - — — — — <br /> MW-7 03/23/95 2650 616 --- 2034 ND<50 ND<0 50 ND<Q 50 ND<0 50 ND<l 0 — 89 ATI <br /> MW 7 1004/95 2650 731 --- 1919 — — — — — — <br /> MW-7 01/04/96 2650 685 1965 — — — — — — — — <br /> MW-7 03129/96 2650 649 --- 2001 ND<50 ND<0 5 ND<l ND<l ND<l ND<10 39 SPL <br /> MW 7 07/01/96 2650 704 — 1946 --- --- _ --- <br /> MW-7 10/15196 2650 727 --- 1923 <br /> MW-7 04/16/97 2650 585 — 2065 — — — — -- — — — <br /> MW-7 10/15/97 2650 727 — 1923 — — — -- - -- <br /> MW 7 03/17/98 2650 659 — 1991 - — --- -- -- -- — <br /> 17-Apr-98 Page 7 <br />