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TABLE 1- SUMMARY OF RESULTS OF GROUNDWATER MONITORING AND SAMPLING <br /> BP OIL COMPANY SERVICE STATION NO 11194 <br /> 2375 TRACY BOULEVARD,TRACY CALIFORNIA <br /> ALISTO PROJECT NO 10-065 <br /> WELL DATE OF CASING DEPTH TO PRODUCT GROUNDWATER TPH-G B T E X LAB <br /> ID SAMPLING/ ELEVATION (a) WATER THICKNESS ELEVATION (b) (ppb) (ppb) (ppb) ) (ppb) <br /> MONITORING (Feet) (Feet) (Feet) (Feet) <br /> MW-7 02/09/87 — -- — 6300 420 92 — 1200 SUP <br /> MW 09/21/87 — — — ND<50 ND<05 ND<05 — ND<05 SUP <br /> MW-7 10/20/87 — — — 65 ND<O 5 ND<O 5 — 007 SUP <br /> MW 7 11/20/87 — ---- — — ND<50 ND<0 5 ND<0 5 — ND<0 5 SUP <br /> MW 7 03!13/88 2650 675 ---- 1975 ---- — — — --.- — <br /> MW-7 031x23188 2650 696 — 1954 57 59 ND<0 5 1 SUP <br /> MW 7 06/07/88 2650 675 --- 1975 — — — — -- .-- <br /> MW 7 10118/88 2650 710 — 1940 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 SUP <br /> MW-7 02/15/90 2650 580 000 2070 3400 94 73 70 170 SUP <br /> MW-7 04/26/90 2650 663 000 1987 — ---- — -- _--- -- <br /> MW 7 07/12(90 2650 666 000 1984 ND<50 ND<0 3 ND<0 3 ND<O 3 ND<O 3 SUP <br /> MW-7 08127/90 26 50 686 000 1964 — - — — <br /> MW 7 11/02/90 2650 703 000 1947 <br /> MW-7 11/05/90 2650 704 000 1946 ND<50 ND<O 3 ND<O 3 ND<0 3 ND<O 3 SUP <br /> MW 7 02M25/91 2650 630 000 20 20 ND<50 ND<0 3 ND<0 3 ND<O 3 ND<0 3 SUP <br /> MW-7 06/27/91 2650 714 000 1936 ND<50 ND<0 5 ND<0 5 ND<O 5 ND<0 5 CHR <br /> MW-7 09t25191 2650 850 000 16 00 ND<30 ND<0 30 ND<O 30 ND<0 30 ND<0 30 SEQ <br /> MW-7 12/10/91 2650 698 000 1952 NDQO ND<0 30 ND<O 30 ND<0 30 ND<O 30 SEQ <br /> MW 7 03/25192 2650 653 000 1997 ND<30 ND<O 30 ND<0 30 ND<0 30 ND<0 30 SEO <br /> MW 7 06125W 2650 613 000 1837 ND<30 ND<0 30 ND<O 30 ND<O 30 ND<O 30 SEQ <br /> M W 7 12/08182 2650 689 000 1961 ND<50 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ANA <br /> MW-8 09/21/87 ---- — ---- ---- 2200 32 3 ---- 480 SUP <br /> MW-8 101r20187 — - - — 3800 20 5 — 210 SUP <br /> Mw-8 11/20/87 — — ---- — 140 ND<O 5 ND<0 5 — 16 SUP <br /> MW-8 03/13/88 2566 608 000 1958 -- .--. — — — <br /> MiW-8 03x23/86 2566 600 000 1966 15OD00 280 210 — 3000 SUP <br /> MW-8 06107/88 2566 620 000 1946 ---- --.- — -_. — <br /> MW-8 10,%8188 2566 653 000 1913 3400 28 ND<0 5 ND<O 5 630 SUP <br /> MW-8 02/15+90 2566 655 000 1911 ND<50 ND<0 3 ND<O 3 ND<0 3 ND<O 3 SUP <br /> MW-8 04/26190 2566 593 000 1973 — — .--. — ---- — <br /> mW-8 07/12/90 2566 598 000 1968 1100 27 13 360 1000 SUP <br /> MW-8 08x27/90 2566 627 000 1939 — — — -- <br /> MW-8 11//02/80 2566 635 000 1931 — --- <br /> MW-8 11/)5/90 2566 638 000 1928 2200 23 7 130 340 SUP <br /> MW-8 02/25/91 2566 553 000 2013 8100 20 21 150 240 SUP <br /> MW-8 06/27/91 2566 638 000 1928 3100 73 ND<0 5 140 330 CHR <br /> MW$ 091/25/91 2566 681 000 1885 6300 13 41 190 250 SEQ <br /> MW-8 12/10/91 2566 625 000 1941 3600 75 24 90 120 SEQ <br /> MW-8 03/25/92 2566 576 000 1990 1400 19 66 140 230 SEQ <br /> MW-8 06/25192 2566 706 000 1860 120 ND<0 3 051 ND<O 3 050 SEQ <br /> MW$ 12/06/92 2566 614 000 1952 75 ND<O 5 ND<O 5 15 52 ANA <br /> QGl (e) /2/08192 2568 614 000 1952 51 ND<O 5 ND<0 5 09 34 ANA <br /> 03-Feb-93 <br /> PAGE 4 OF 6 <br />