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i • i � <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) (uglll) (ug1l) (ug/1) (ugll) (ug/1) (ug/1) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) (Feet) <br /> MW4 09/02/86 --- --- — --- 48000 3000 3200 --- 4700 --- SUP <br /> MW-4 02109/87 --- --- -- 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 11120/87 --- --- --- --- 2500 240 7300 --- 260 --- --- SUP <br /> MW-4 03113/88 2590 504 --- 2086 -- --- -- -- --- -- - -- <br /> MW-4 03/23/88 2590 508 -- 2082 76 10 16 --- 13 --- --- SUP <br /> MW-4 06107/88 2511 521 -- 2065 --- -- --- --- --- <br /> MW-4 10118188 2590 555 - 2035 1100 75 28 13 35 --- -- SUP <br /> MW-4 02/15/90 2590 490 — 21 00 1800 370 43 130 98 --- --- SUP <br /> MW-4 04/26/90 2590 505 — 2085 --- --- --- --- --- <br /> MW-4 07112/90 2590 516 -- 2074 3100 510 41 220 320 --- --- --- <br /> MW4 08/27/90 2590 546 --- 2044 --- -- --- --- -- <br /> MW-4 11102!90 2590 551 --- 2039 --- -- -- --- --- --- --- <br /> MW-4 11/05/90 2590 553 — 2037 950 330 18 52 29 --- — - <br /> MW-4 02/25191 2590 473 --- 2117 370 120 33 22 13 --- --- --- <br /> MW-4 06127/91 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 12/08/92 2590 539 SHEEN 2051 _— __ --- --- --- <br /> MW-4 03/10/93 2590 495 SHEEN 2095 — — — --- --- -- _ <br /> MW-4 06/16/93 2590 547 SHEEN 2043 --- --- --- --- --- --- <br /> MW-4 10/22/93 2590 550 SHEEN 2040 --- --- --- --- --- -- - <br /> MW-4 01/24/94 2590 554 — 2036 6900 88 16 130 340 -- --- PACE <br /> MW-4 06/07194 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) 09/13194 --- -- - --- 5600 21 13 220 500 -- --- PACE <br /> MW-4 09/13/94 2590 483 --- 21 07 5100 86 1 280 510 — 62 ATI <br /> QC-1 (d) 01110/95 --- -- -- --- 2300 74 1 220 380 -- --- ATI <br /> MW-4 03/23195 2590 472 009 21 25 -- --- --- --- --- -- - <br /> MW-4 10/04/95 2590 594 014 2007 -- -- --- --- --- --- --- --- <br /> MW4 01/04196 2590 512 --- 2078 1700 27 25 36 58 25 08 --- <br /> MW-4 03/29/96 2590 497 — 2093 1300 76 ND<1 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 /> QC-1 (d) 10/15/96 --- --- — --- 1100 22 ND<5 0 75 85 ND<50 47 SPL <br /> MW-4 04(16197 2590 533 --- 2057 5000 173 ND<5 0 775 767 131 37 SPL <br /> Blaine Tech Services, Inc Report 010117-X-2 BP Oil 11194 at 2375 Tracy Blvd,Tracy,California Page 7 <br />