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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/ll) (ug/L) (ug/L) (uglL) (ug/L) (ug/L) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) (Feet) <br /> MW-7 02109/87 -- — — — 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 10120/87 — — — — 65 ND<0 5 ND<0 5 — 007 -- --- SUP <br /> MW-7 11120/87 — -- - — ND<50 N0<05 ND<0 5 --- ND<0 5 — — SUP <br /> MW-7 03/13/88 2650 675 --- 1975 — --- -- --- -- -- — — <br /> MW-7 03/23188 2650 696 — 1954 57 69 ND<0 5 — 1 — --- SUP <br /> MW-7 06107/88 2650 675 -- 1975 — — — — — --- -- -- <br /> MW-7 10118/88 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 — 19 84 ND<50 ND<0 3 ND<0 3 N0<0 3 ND<0 3 — — SUP <br /> MW-7 08127/90 2650 686 -- 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 03/25/92 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<Q 5 — -- ANA <br /> MW-7 03110/93 2650 654 1996 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 — (1) — PACE <br /> MW-7 06/16/93 2650 643 — 2007 — -- — — — — — — <br /> MW-7 10/22/93 2650 697 -- 1953 — — — --- --- --- --- --- <br /> MW-7 01124/94 2650 683 - 1967 — --- --- -- — — — — <br /> MW-7 06/07/94 2650 729 -- 1921 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<Q 5 ND<5 0 (1) 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<0 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 03/29/96 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 585 — 2065 — — — -- - -- -- -- <br /> MW-7 10115197 2650 727 — 1923 — — — — ~— — -- <br /> MW-7 03/17198 2650 659 --- 19 91 — <br /> MW-7 01/06/99 2650 698 --- 1952 — — — -- -- -- - <br /> Blaine Tech Services, Inc,Report 010731-C-1,BP Oil 11194 at 2375 Tracy Blvd ,Tracy,Califoma Page 13 <br />