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i <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> May 1990 Through February 2005 <br /> Former BP Oil 11192 <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE TBA Comments <br /> Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260E 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (pg/1) (µg/1) (µgll) (µg11) (µg/1) (pg/1) (pg/l) 41g/1) (µg/1) <br /> MW-5 continued <br /> 06/19/92 6 15 2999 000 -23 84 048 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 - - -- <br /> 09/18/92 6 15 31 92 000 -25 77 000 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - - -- <br /> D 09/18/92 6 15 31 92 000 -25 77 -193 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- -- <br /> 12/09/92 6 15 32 14 000 -2599 -022 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 --03/11/93 6 15 2948 000 -2333 266 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- - - <br /> D 03/11/93 6 15 2948 000 -2333 000 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - - -- <br /> 06/15/93 6 15 2745 000 -2130 2 03 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - - - <br /> 09/15/93 6 15 2797 000 -21 82 -052 - -- -- -- -- -- -- -- <br /> 12/22/93 6 15 2779 000 -21 64 0 18 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- --04/01/94 6 15 2691 000 -2076 0 88 -- -- -- -- -- _ _ _ <br /> 07/27/94 6 15 2696 000 -2081 -0 05 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 <br /> 11/30/94 6 15 2741 000 -21 26 -045 -- - - - -- -- -- -- <br /> 02/15/95 6 15 2626 000 -2011 1 15 ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<1 0 - - - <br /> 04/21/95 6 1S 2423 000 -1808 2 03 -- - -- -- -- - -- <br /> 07/19/95 6 15 2346 000 -1731 077 ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- - -- <br /> 10/20/95 6 15 23 94 000 -17 79 -- -- -- -- -- -- - _ _ __ <br /> 04/23/96 6 15 2060 000 -14 45 3 34 ND<500 - ND<0 5 ND<0 5 ND<0 5 ND<O 5 ND<10 -- - <br /> 07/12/96 6 15 21 18 000 -15 03 -0 58 -- -- -- -- -- - -- -- -- <br /> 10/18/96 6 15 2035 000 -1420 0 83 ND<50 -- ND<0 5 ND<1 0 ND<1 0 ND<l 0 ND<10 -- - <br /> 02/26/98 6 15 1250 000 -635 7 85 ND<50 -- ND<0 5 ND<1 0 ND<I 0 ND<1 0 ND<10 - -- <br /> 07/07/98 6 15 12 i 0 000 -5 95 040 ND<50 -- ND<0 5 ND<1 0 ND<1 0 ND<1 0 ND<10 -- - <br /> 01/19/99 6 15 1422 000 -807 -2 12 -- -- <br /> 07/14/99 6 15 1408 000 -793 0 14 - - -- -- -- -- -- -- <br /> 10/07/99 6 15 13 70 000 -7 55 -- - - - -- -- -- -- -- <br /> 11192 Page 8 of 18 <br />