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Table 2 - HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS May 1990 Through November 2004 Former BP Oil 11192 Date TOC Depth to LPN Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE TBA Comments Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260E 8260E Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (pg/1) (µg11) (pg/1) (µg/1) (µg/l) (µg/l) MW-1 continued 01/20/00 5 52 14 19 000 -8 67 -029 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 2400 -- 04/11/00 5 52 1483 000 -931 -064 1100 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 3700 -- -- 07/14/00 5 52 1172 000 -620 3 11 510 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 1300 -- -- 10/26/00 552 1338 000 -786 -166 230 -- 057 ND<O 5 ND<O 5 076 3000 -- - 01/16/01 5 52 1325 000 -7 73 0 13 230 -- 0 688 ND<O 5 ND<O 5 ND<O 5 271 -- -- 04/12/01 552 1181 000 -6 29 144 650 -- ND<O 5 ND<O 5 ND<O 5 ND<1 5 921 -- -- 07/23/01 552 1335 000 -783 -154 1400 -- ND<O 5 ND<O 5 ND<O 5 ND<1 5 1610 -- -- 08/16/01 500 13 80 000 -8 80 -097 -- -- - - -- __ _- 11/09/01 500 1483 000 -9 83 -- ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 760 850 ND<130 12/14/01 500 1462 000 -962 0 21 650 -- ND<O 5 ND<O 5 ND<O 5 ND<1 0 603 -- 01/10/02 500 1291 000 -791 1 71 240 -- ND<O 5 ND<O 5 ND<O 5 ND<1 0 230 -- -- 02/18/02 500 12 80 000 -780 0 11 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 25 5 4 3600 05/31/02 500 1298 000 -798 -0 18 -- ND<500 ND<5 0 ND<5 0 ND<5 0 ND<10 -- ND<20 6300 08/08/02 500 1429 000 -9 29 -131 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 -- ND<2 0 3800 11/15/02 500 1546 000 -1046 -1 17 -- ND<250 ND<2 5 ND<2 5 ND<2 5 ND<2 5 -- ND<10 7300 01/03/03 500 1459 000 -9 59 087 - ND<250 ND<2 5 ND<2 5 3 9 8 -- ND<10 4100 05/14/03 500 13 84 000 -884 0 75 - ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 - ND<2 0 2100 08/14/03 500 15 31 000 -1031 -147 -- ND<250 ND<2 5 ND<2 5 ND<2 5 ND<5 0 -- ND<10 1700 11/26/03 500 16 18 000 -11 18 -087 - ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<2 0 810 02/23/04 500 1483 000 -983 1 35 -- ND<100 ND<l 0 ND<1 0 ND<1 0 ND<2 0 -- ND<4 0 ND<200 05/21/04 5 00 1437 000 -9 37 046 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 050 10 08/10/04 500 15 59 000 -1059 -122 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 64 11/24/04 5 00 1617 000 -11 17 -058 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 ND<O 50 11 MW-2 11192 Page 2 of 18