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W Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS May 1990 Through May 2005 Former BP Oil 11192 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE TBA Comments Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 82608 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg11) (µg/1) (µg11) (pg/1) (µg11) (µg/1) (µg/1) (µg/1) (µg11) MW-10 continued 11/9/2001 406 1401 000 -9 95 -094 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<l 0 ND<20 2/18/2002 406 11 86 000 -780 2 15 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 ND<100 5/31/2002 406 12 15 000 -809 -029 __ __ ND<0 50 ND<0 50 ND<0 50 ND<1 0 - ND<2 0 ND<l00 8/8/2002 406 1349 000 -943 -134 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 - ND<2 0 ND<20 11/15/2002 4 06 1470 0 00 -1064 -121 -- ND<50 ND<0 50 14 ND<0 50 052 - ND<2 0 ND<l00 1/3/2003 406 1379 000 -973 091 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<2 0 ND<100 5/14/2003 406 1285 000 -879 094 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 - ND<2 0 ND<l00 8/14/2003 4 06 1443 000 -1037 -158 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 ND<100 11/26/2003 4 06 1529 000 -1123 -086 -- 56 ND<0 50 081 ND<0 50 l 1 -- ND<2 0 ND<100 2/23/2004 4 06 13 81 000 -9 75 148 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 - ND<2 0 ND<100 5/21/2004 406 1348 000 -942 033 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 ND<5 0 8/10/2004 406 1468 000 -1062 -120 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<0 50 ND<5 0 11/24/2004 406 1524 000 -11 18 -056 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 ND<5 0 2/25/2005 4 06 13 15 000 -909 2 09 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 ND<5 0 5/27/2005 4 06 1201 000 -795 1 14 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 ND<5 0 MW-11 8/16/2001 5 18 1650 000 -1132 -- ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 170 110 ND<20 10/4/2001 5 18 1825 0 00 -13 07 -175 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 280 200 ND<20 11/9/2001 5 18 1824 0 00 -1306 001 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 170 140 160 2/18/2002 5 18 1592 000 -10 74 232 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 290 310 ND<200 5/31/2002 5 18 1661 000 -1143 -069 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 170 ND<100 8/8/2002 5 18 1863 000 -13 45 -2 02 -- ND<2500 ND<25 ND<25 ND<25 ND<25 -- 91 ND<20 11/15/2002 5 18 18 93 000 -13 75 -030 - 76 ND<0 50 053 ND<0 50 ND<O 50 - 72 ND<100 1/3/2003 5 18 1881 0 00 -13 63 0 12 - ND<50 ND<0 50 052 ND<0 50 ND<l 0 130 150 11192 Page 17 of 19