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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 8260E 8260E Elevation Elevation (feet) (feet) (feet) (feet) (feet) (41) (µg/1) (40) (µg/1) (µg/1) (µg11) (11g11) (µg/1) (µg/1) MW-10 continued 02/23/04 406 13 81 000 -975 148 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 ND<100 05/21/04 406 1348 0 00 -942 033 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<0 50 ND<5 0 08/10/04 406 1468 0 00 -1062 -120 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 11/24/04 406 1524 000 -1118 -056 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 02/25/05 4 06 13 15 000 -909 209 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 05/27/05 4 06 1201 000 -795 114 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 ND<5 0 08/26/05 406 13 77 000 -971 -176 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<10 11/11/05 4 06 1463 000 -1057 -086 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 ND<5 0 MW-11 08/16/01 5 18 1650 000 -1132 -- ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 170 110 ND<20 10/04/01 5 18 1825 000 -13 07 -175 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 280 200 ND<20 11/09/01 5 18 1824 000 -1306 0 01 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 170 140 160 02/18/02 5 18 1592 000 -1074 232 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 290 310 ND<200 05/31/02 5 18 1661 000 -1143 -069 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 170 ND<l00 08/08/02 5 18 1863 000 -13 45 -202 -- ND<2500 ND<25 ND<25 ND<25 ND<25 -- 91 ND<20 11/15/02 5 18 1893 0 00 -13 75 -030 -- 76 ND<0 50 053 ND<0 50 ND<0 50 -- 72 ND<100 01/03/03 5 18 1881 000 -13 63 0 12 -- ND<50 ND<0 50 052 ND<0 50 ND<1 0 -- 130 150 05/14/03 5 18 1706 000 -1188 175 - 120 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- 110 250 08/14/03 5 18 1983 000 -1465 -277 -- ND<250 ND<2 5 ND<2 5 ND<2 5 7 7 -- 67 2200 11/26/03 5 18 1951 000 -1433 032 -- 160 ND<l 0 ND<1 0 ND<1 0 2 4 -- 140 960 02/23/04 5 18 17 71 000 -1253 180 -- 260 ND<2 5 3 5 ND<2 5 6 7 -- 48 3400 05/21/04 5 18 1876 000 -1358 -105 -- ND<250 ND<2 5 ND<2 5 ND<2 5 ND<5 0 4 5 1200 08(10(04 5 18 2068 000 -15 50 -192 -- ND<1300 ND<13 ND<13 ND<13 ND<25 -- ND<13 12000 11/24/04 5 18 1987 000 -1469 0 81 -- ND<1300 ND<13 ND<13 ND<13 ND<25 -- ND<l3 12000 11192 Page 18 of 20