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TABLE 1 -SUMMARY OF RESULTS OF GROUNDWATER MONITORING <br /> WELL DAZE 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/11) (ug/1) (ug/1) (ug/1) (ugh) (ug/1) (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 10120/87 --- -- -- -- 65 ND<O 5 ND<O 5 --- 007 --- --- SUP <br /> MW-7 11/20/87 --- --- --- -- ND<50 ND<0 5 ND<0 5 -- ND<O 5 --- SUP <br /> MW-7 03113/88 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<O 5 ND<0 5 ND<O 5 ND<0 5 --- -- SUP <br /> MW-7 02/15/90 26 50 580 - 2070 3400 94 73 70 170 — --- SUP <br /> MW-7 04/26/90 2650 663 --- 1987 — --_ ___ <br /> MW-7 07/17190 2650 666 1984 ND<50 ND<O 3 ND<O 3 ND<O 3 ND<O 3 -- SUP <br /> MW-7 08/27/90 2650 686 --- 1964 _- <br /> MW-7 11/02/90 2650 703 --- 1947 <br /> MW-7 11105/90 2650 704 --- 1946 ND<50 ND<O 3 ND<O 3 ND<0 3 ND<0 3 -- SUP <br /> MW-7 02/25/91 2650 630 -- 2020 ND<50 ND<O 3 ND<O 3 ND<0 3 ND<0 3 -- — SUP <br /> MW-7 06/27/91 2650 714 --- 1936 ND<50 ND<O 5 ND<O 5 ND<0 5 ND<O 5 -- __ CHR <br /> MW-7 09125/91 2650 850 - 1800 ND<30 ND<O 30 ND<O 30 ND<O 30 ND<0 30 -- -- SEQ <br /> MW-7 12/10191 2650 698 — 1952 ND<30 ND<0 30 ND<O 30 ND<O 30 ND<O 30 — - SEQ <br /> MW-7 03/25/92 2650 653 - 1997 ND<30 ND<0 30 ND<O 30 ND<0 30 ND<O 30 -- -- SEQ <br /> MW-7 06125/92 2650 813 -- 1837 ND<30 ND<0 30 ND<O 30 ND<O 30 ND<O 30 -- -- SEQ <br /> MW-7 12/08/92 2650 689 - 1961 ND<50 ND<O 5 ND<0 5 ND<0 5 ND<0 5 — — ANA <br /> MW-7 03/10/93 2650 654 -- 1996 ND<50 ND<O 5 ND<0 5 ND<0 5 ND<O 5 — - PACE <br /> MW-7 06/16/93 26 50 643 --- 2007 <br /> MW-7 10/22193 2650 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<O 5 ND<O 5 ND<O 5 ___ 34 PACE <br /> MW-7 09/13/94 2650 763 - 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 685 -- 1965 <br /> MW-7 03/29196 2650 649 - 2001 ND<50 ND<O 5 ND<1 ND<1 ND<1 N0<10 39 SPL <br /> MW-7 07/01/96 2650 704 --- 1946 -- --- ___ <br /> MW-7 10/15/96 2650 727 -- 1923 <br /> MW-7 04/16/97 2650 585 --- 2065 <br /> MW-7 10/15197 2650 727 -- 1923 <br /> MW-7 03/17/98 2650 659 — 1991 <br /> MW-7 01/06/99 2650 698 --- 1952 <br /> MW-7 01119100 2650 680 --- 1970 -- — --- ___ <br /> Blaine Tech Services, Inc, Report 000722-N-2 BP Oil 11194 at 2375 Tracy Blvd,Tracy California Page 13 <br />