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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) (ug//I) (ug1L) (ug/L) (ug/L) (ug1L) (ug1L) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) (Feet) <br /> MW-4 04/16/97 2590 533 — 2057 5000 173 ND<5 0 775 767 131 37 SPL <br /> MW-4 10/15/97 2590 571 --- 2019 510 29 ND<1 0 91 636 25 73 SPL <br /> MW-4 03/17198 2590 487 --- 2103 890 36 ND<1 0 51 88 620 63 SPL <br /> MW-4 01/06/99 2590 542 --- 2048 4100 11 19 180 110 84 — SPL <br /> MW4 09/13/99 2590 562 --- 2028 2400 42 65 89 21 330 --- SPL <br /> MW-4 01/19/00 2590 515 — 2075 5200 72 ND<0 5 93 37 29 — PACE <br /> MW-4 04/12/00 2590 580 — 2010 8300 71 55 200 61 55 --- PACE <br /> MW-4 07122/00 2590 567 --- 2023 2900 81 28 63 19 46 — PACE <br /> MW4 10/26/00 2590 520 — 2070 2000 16 ND<0 5 27 24 23 -- PACE <br /> MW4 01/17/01 2590 535 — 2055 820 949 1 35 587 135 401 — PACE <br /> MW-4 04/12/01 2590 535 -- 2055 1600 14 556 786 113 556 — PACE <br /> MW-4 05/23/01 2590 551 --- 2039 2700 135 539 775 281 471 --- PACE <br /> MW-4 07/31/01 2590 585 — 2005 1400 83 108 228 11 105 --- PACE <br /> Blaine Tech Services,Inc,report,010731-C-1,BP Oil 11194 at 2375 Tracy Blvd,Tracy,California Page 8 <br />