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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) (µg/1) (41) (µg/1) (µg11) (µg11) (µg11) (µg/1) (µg/1) (µg/1) MW-6 continued 01/16/01 5 80 13 39 000 -759 0 21 1200 -- 2 06 ND<O 5 ND<O 5 ND<O 5 1700 -- -- 04/12/01 5 80 1193 000 -6 13 146 120 -- ND<O 5 ND<O 5 ND<O 5 ND<1 5 157 -- -- 07/23/01 580 13 56 0 00 -776 -163 200 -- ND<O 5 ND<O 5 ND<O 5 ND<1 5 254 -- 08/16/01 528 1400 000 -872 -096 -- -- -- -- -- -- -- -- -- 11/09/01 528 15 03 000 -975 -103 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 1800 1800 ND<250 12/14/01 528 14 75 000 -947 028 2100 -- ND<O 5 ND<O 5 ND<O 5 ND<1 0 2140 -- -- 01/10/02 5 28 1292 000 -764 183 1600 -- ND<5 0 ND<5 0 ND<5 0 ND<tO 1580 -- -- 02/18/02 528 1288 000 -760 0 04 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 ND<100 05/31/02 528 13 It 000 -783 -023 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 190 ND<tOO 08/08/02 528 1444 000 -916 -133 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 -- ND<2 0 ND<20 11/15/02 528 l5 67 000 -1039 -123 -- 96 ND<O 50 16 ND<O 50 1 -- 95 ND<100 D 11/15/02 5 28 1567 000 -1039 -123 -- -- -- -- -- -- -- -- 01/03/03 528 1475 000 -947 092 - ND<50 ND<O 50 ND<O 50 065 21 -- ND<2 0 ND<100 D 01/03/03 528 1475 000 -947 092 -- -- -- -- -- -- -- -- -- 05/14/03 5 28 1394 0 00 -866 081 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 -- ND<2 0 ND<100 D 05/14/03 5 28 1394 000 -866 0 81 -- -- -- -- -- -- -- -- -- 08/14/03 528 1543 0 00 -10 15 -149 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<2 0 ND<100 D 08/14/03 528 1543 000 -1015 -149 -- -- -- -- -- -- -- -- -- 11/26/03 528 l6 29 000 -1101 -086 -- 50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 7 3 ND<100 02/23/04 528 l4 81 000 -953 148 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 3 1 ND<100 05/21/04 528 1445 000 -917 036 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 079 ND<5 0 08/10/04 528 1567 000 -1039 -122 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 2 2 ND<5 0 11/24104 528 1620 000 -1092 -0 53 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 ND<5 0 1 02/25/05 5 28 1416 000 -888 2 04 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 ND<5 0 11192 Page 12 of 20