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TABLE 1 -SUMMARY OF RESULTS OF GROUNDWATER MONITORING <br /> WELL DATE OF CASING DEPTH TO PRODUCT GROUNDWATER TPH-G B T E X MTBE DO LAB <br /> ID SAMPLING/ ELEVATION (a) WATER THICKNESS ELEVATION (b) (ug/A) (ugA) (ugA) (ugA) (ugA) (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<O 5 ND<O 5 - ND<O 5 - SUP <br /> MW-7 10/20f87 --- - --- 65 ND<O 5 ND<O 5 - 007 --- --- SUP <br /> MW-7 11/20167 -- -- -- ND<50 ND<0 5 ND<0 5 - ND<0 5 --- - SUP <br /> MW-7 03/13/88 2650 675 --- 1975 --- <br /> MW-7 03/23/88 2650 696 --- 1954 57 59 ND<O 5 -- 1 --- --- SUP <br /> MW-7 06/07/88 2650 675 --- 1975 --- --- - -- <br /> MW-7 10/18/88 2650 710 1940 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<O 3 ND<0 3 ND<0 3 --- SUP <br /> MW-7 08/27/90 2650 686 --- 1964 - — --- --- --- --- --- <br /> ~ <br /> MW-7 11/02/90 2650 703 -- 1947 --- --- --- --- <br /> MW-7 11/05/10 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<O 5 ND<0 5 ND<0 5 ND<0 5 --- --- CHR <br /> MW-7 09/25/91 2650 850 - 1800 ND<30 ND<O 30 ND<0 30 NM 30 ND<O 30 --- SEQ <br /> MW-7 12/10/91 2650 698 1952 ND40 ND<O 30 ND<0 30 ND<O 30 ND<O 30 --- SEQ <br /> MW-7 03/25/92 2650 653 --- 1997 ND<30 ND<O 30 ND<0 30 ND<O 30 ND<O 30 --- --- SEQ <br /> MW-7 06/25/92 2650 813 --- 1837 ND<30 ND<O 30 ND<O 30 N0<030 ND<O 30 SEQ <br /> MW-7 12/08/92 2650 689 --- 1961 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<O 5 --- --- ANA <br /> MW-7 03/10/93 2660 654 - 1996 ND<50 ND<0 5 ND<O 5 ND<0 5 ND<0 5 --- PACE <br /> MW-7 06/16/93 2650 643 --- 2007 - - - - --- --- --- <br /> MW-7 10/22193 2650 697 --- 1953 --- --- --- --- — - -- <br /> MW-7 01/24194 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<0 50 ND<O 50 ND<1 0 --- 89 ATI <br /> MW-7 10/04/95 2650 731 --- 1919 - — - --- --- <br /> MW-7 01/04/96 2650 605 --- 1965 --- --- --- --- --- --- --- <br /> MW-7 03/29/96 2650 649 --- 2001 ND<50 ND<0 5 ND<1 ND<1 ND<1 ND<10 39 SPL <br /> MW-7 07/01196 2650 704 1946 --- --- --- --- — - --- <br /> MW-7 10/15/96 2650 727 --- 1923 - --- --- --- --- <br /> MW-7 04/16/97 2650 586 --- 2065 --- --- --- --- --- <br /> MW-7 10/15/97 2650 727 - 1923 --- --- - --- --- --- --- <br /> MW-7 03/17198 2650 659 - 1991 --- — - --- --- --- --- <br /> MW-7 01106199 2650 698 -- 1952 --- --- --- --- -- - - -~ <br /> Blaine Tech Services Inc,Report,990913-F-1,BP Oil 11194 at 2375 Tracy Blvd,Tracy,California Page 9 <br />