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# • • E <br /> 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) (U91A) (ugA) (ug/1) (ugA) NO (ug/1) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) (Feet) <br /> MW-4 09/02/86 -- 48000 3000 3200 -- 4700 _ SUP <br /> MW-4 02/09/87 --- --- 14000 230 160 --- 880 --- SUP <br /> MW-4 09/21/87 --- --- --- --- 14000 620 83 --- 1600 --- SUP <br /> MW-4 10/20/87 — --- --- --- 4900 50 ND<0 5 ND<0 5 --- - SUP <br /> MW-4 11/20/87 --- --- - --- 2500 240 7300 --- 260 --- — SUP <br /> MW-4 03/13/88 2590 504 --- 2086 --- -- --- --- --- --- --- <br /> MW-4 03/23/88 2590 508 --- 2082 76 10 Is — 13 — -- SUP <br /> MW-4 06/07/88 2590 525 --- 2065 --- --- --- - --- -- — <br /> MW-4 10/18/88 2590 555 - 2035 1100 75 28 13 35 --- --- SUP <br /> MW 4 02/15/90 2590 490 - 2100 1800 370 43 130 98 --- - SUP <br /> MW-4 04/26/90 2590 505 --- 2085 --- --- --- --- --- — - <br /> MW-4 07/12/90 2590 516 --- 2074 3100 510 41 220 320 -- -- <br /> MW-4 08/27/90 2590 546 --- 2044 --- --- -- --- --- — - <br /> MW-4 11/02/90 2590 551 --- 2039 — -- --- -- -- - — <br /> MW-4 11/05/90 2590 553 --- 2037 950 330 18 52 29 --- — - <br /> MW-4 02/25/91 2590 473 --- 2117 370 120 33 22 13 --- --- --- <br /> MW-4 06/27/91 2590 564 --- 2026 1500 130 ND<0 5 21 18 - --- --- <br /> MW-4 09/25/91 2590 660 --- 1930 810 70 49 12 110 — - SEQ <br /> MW 4 12/10/91 2590 543 --- 2047 1300 100 14 62 110 --- SEQ <br /> MW-4 03/25/92 2590 489 --- 2101 1400 500 40 210 320 -- -- SEQ <br /> MW-4 06/25/92 2590 711 040 1909 -- — --- --- — — - <br /> MW-4 12/08192 2590 539 SHEEN 2051 -- — --- --- <br /> MW-4 <br /> -MW-4 03/10/33 2590 495 SHEEN 2095 -- --- -- --- - --- --- --- <br /> MW-4 06/16/93 2590 547 SHEEN 2043 --- - - --- --- - - -- <br /> MW-4 i0/22/93 2590 550 SHEEN 2040 --- -- -- --- — — - <br /> MW-4 01/24/94 2590 554 --- 2036 6900 88 16 130 340 — -- PACE <br /> MW 4 06/07/94 2590 598 — 1992 23000 210 30 720 1200 32 PACE <br /> MW-4 09/13/94 2590 642 --- 1948 9000 20 15 240 550 --- 70 PACE <br /> QC-1 (d) 09/13/94 --- --- --- --- 5600 21 13 220 500 --- --- PACE <br /> MW-4 09/13/94 2590 483 --- 2107 5100 86 1 280 510 - 62 ATI <br /> QC-1 (d) 01/10/95 --- --- --- — 2300 74 1 220 380 --- --- ATI <br /> MW-4 03/23/95 2590 472 009 2125 --- --- --- --- -- -- — - <br /> MW-4 10/04/95 2590 594 014 20 07 --- --- --- --- --- --- -- <br /> MW-4 01/04/96 2590 512 --- 2078 1700 27 25 36 58 25 08 --- <br /> MW-4 03/29/96 2590 497 --- 2093 1300 76 ND<I 36 32 ND<10 24 SPL <br /> MW-4 07/01/96 2590 557 --- 2033 11000 160 49 590 836 ND<100 40 SPL <br /> MW-4 10/15/96 2590 577 --- 2013 2100 39 ND<10 160 190 ND<100 47 SPL <br /> 00-1 (d) 10/15/96 --- --- --- -- 1100 22 ND<5 0 75 85 ND<50 47 SPL <br /> 0 5 <br /> MW-4 04/16/97 25933 — 2057 5000 173 ND<5 0 775 767 131 37 SPL <br /> MW-4 10/15/97 2590 671 — 2019 510 29 ND<10 91 636 25 73 SPL <br /> MW-4 03/17/98 2590 487 — 2103 890 36 ND00 51 Be 620 63 SPL <br /> Blaine Tech Services,Inc,Report,990913-F-1,BP Oil 11194 at 2375 Tracy Blvd,Tracy,California Page 5 <br />