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V Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS September 1996 Through November 2004 76 Station 5886 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water to 8260B benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µgll) (µg/1) (µg/1) Gig/]) (µg11) (µgll) (µg11) (µg11) MW-101) continued 11/20/03 -167 5 94 000 -761 068 -- ND<50 082 2 4 0 55 35 -- ND<2 0 02/11/04 -167 573 000 -740 021 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 - 89 05/27/04 -167 605 000 -772 -032 52 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 89 08/30/04 -167 6 10 000 -777 -005 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 7 0 11/23/04 -1 67 5 59 000 -726 051 ND<50 -- ND<0 50 ND<0 50 ND<0 50 1 1 - 052 MW-10i (Screen Interval in feet 17 0-22 0) 04/14/99 -158 6 09 0 00 -767 -- -- -- -- -- 20 06/01/99 -1 58 655 0 00 -8 13 -- -- -- -- 16 20 08/16/99 -1 58 697 0 00 -855 -042 -- -- -- - -- 5 7 71 11/29/99 -1 58 6 83 000 -841 014 -- -- __ __ __ __ 18 25 02/28/00 -1 58 524 000 -682 l 59 - -- -- 13 11 05/10/00 -158 6 13 000 -771 -0 89 _ 08/03/00 -1 58 688 0 00 -846 -0 75 - -- -- -- -- - -- 261 11/16/00 -158 625 000 -783 0 63 -- -- __ _ _ _ 21 02/05/01 -1 58 622 000 -780 003 05/07/01 -158 6 12 000 -770 -- 08/20/01 -1 58 6 85 000 -8 43 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 11/19/01 -158 6 39 0 00 -797 - ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 5 02/11/02 -1 58 6 20 000 -7 78 -- ND<50 -- ND<0 50 091 ND<0 50 0 73 12 12 05/02/02 -1 58 6 27 000 _7 85 __ ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 08/01/02 -1 58 649 000 -807 -- ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<l 0 - ND<2 0 11/20/02 -158 6 18 0 00 -776 031 ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<1 0 - 4 t 02/20/03 -1 58 653 000 -8 11 -035 ND<50 -- ND<0 50 ND<0 50 060 1 3 -- ND<2 0 05/07/03 -1 58 569 0 00 -727 0 84 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND sass Page 26 of 28