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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS May 1990 Through November 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 8260B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg11) (41) (µg11) (µg11) (µg/1) (11g/1) {µg/1) (41) (µg11) MW-9 continued 11/15/02 426 l5 00 000 -1074 -1 13 -- ND<50 ND<0 50 13 ND<0 50 056 -- 14 ND<100 01/03/03 426 1420 000 -9 94 080 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 30 ND<100 05/14/03 426 1327 000 -901 093 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- ND<2 0 ND<100 08/14/03 426 1481 000 -1055 -154 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 ND<100 11/26/03 426 1572 000 -1146 -091 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 ND<100 02/23/04 426 1441 000 -1015 131 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 ND<100 05/21/04 4 26 1396 000 -970 045 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 08/10/04 426 15 12 000 -10 86 -1 16 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 ND<5 0 11/24/04 426 1570 000 -1144 -058 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 02/25/05 426 13 82 000 -956 188 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 05/27/05 426 1249 000 -823 1 33 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 08/26/05 426 1410 000 -984 -t 61 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<10 11/11/05 426 1497 000 -1071 -087 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 MW-10 08/16/01 406 13 07 000 -901 -- ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<2 5 ND<2 0 ND<20 11/09/01 4 06 1401 000 -995 -094 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<1 0 ND<20 02/18/02 406 1186 000 -780 2 l5 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 ND<100 05/31/02 406 12 15 000 -809 -029 -- -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 ND<100 08/08/02 406 1349 000 -943 -134 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- ND<2 0 ND<20 11/15/02 406 1470 000 -1064 -121 -- ND<50 ND<0 50 14 ND<0 50 052 -- ND<2 0 ND<100 01/03/03 406 1379 0 00 -973 09t -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 ND<100 05/14/03 406 1285 000 -879 094 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- ND<2 0 ND<100 08/14/03 406 1443 000 -1037 -158 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 ND<100 11/26/03 406 1529 000 -1 l 23 -086 - 56 ND<0 50 0 81 ND<0 50 1 1 -- ND<2 0 ND<100 11192 Page 17 of 20