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a <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 00 LAB <br /> ID SAMPLING/ ELEVATION (a) WATER THICKNESS ELEVATION (b) (ug//I) (ug/1) (ug/1) (ugll) (ug/1) (ugll) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) (Feet) <br /> MW-4 10/15/97 2590 571 — 2019 510 29 ND<1 0 91 636 25 73 SPL <br /> MW-4 03/17/98 2590 487 — 2103 890 36 ND<1 0 51 88 620 63 SPL <br /> MW-4 01/06/99 2590 542 --- 2046 4100 11 19 180 110 84 --- SPL <br /> MW-4 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 04/12100 2590 580 — 2010 8300 71 55 200 61 55 --- PACE <br /> MW-4 07/22100 2590 567 --- 2023 2900 81 28 63 19 46 -- PACE <br /> Blaine Tech Services, Inc Report,000722-N-2, BP Oil 11194 at 2375 Tracy Blvd,Tracy,California Page 8 <br />