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v Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS May 1990 Through August 2004 Former BP Oil 11192 Date TQC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 82608 benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (11g11) (pg/l) (µg11) (µg/1) (µg/,) (µg11) (Vg/l) (µg/1) MW-1 continued 07/23/01 552 1335 000 -783 -154 1400 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 1610 -- 08/16/01 5 00 13 80 0 00 -880 -097 _ _ __ ._ _ -- 11109/01 500 14 83 000 -981 — ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 760 850 12/14/01 500 1462 000 -962 021 650 -- ND<0 5 ND<0 5 ND<0 5 ND<l 0 603 -- 01/10/02 Soo 1291 000 -791 171 240 -- ND<0 5 ND<0 5 ND<0 5 ND<1 0 230 — 02/18/02 500 1280 000 -780 011 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 25 54 05/31/02 500 1298 000 -798 -019 -- ND<500 ND<5 0 ND<5 0 ND<5 0 ND<10 -- ND<20 09/08/02 500 1429 000 -929 -- -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 — ND<2 0 11/15102 500 1546 000 -1046 -117 -- ND<250 ND<2 5 ND<2 5 ND<2 5 ND<2 5 -- ND<10 01/03/03 500 1459 000 -959 087 -- ND<250 ND<2 5 ND<2 5 3 9 8 -- ND<10 05/14/03 500 1384 000 -884 0 75 — ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- ND<2 0 08/14/03 500 1531 000 -1031 -147 -- ND<250 ND<2 5 ND<2 5 ND<2 5 ND<5.0 — ND<10 11/26/03 5 00 1618 000 -1118 -087 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 02/23/04 500 14 83 000 .983 135 -- ND<100 ND<1 0 ND<1 0 ND<1 0 ND<2 0 -- ND<4 0 05/21/04 500 1437 000 -937 046 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 050 08/10/04 500 1559 000 -1059 -122 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 _. ND<0 50 MW-2 05/01/90 — 25 23 -- -. __ _ _ _ __ — .. . w MW-3 05/01/90 552 25 23 000 -1971 — 200 -- 33 ND 2 15 -- — 08/05/91 552 -- — -- - _ _ _ _ _ — __ __ Dry 12/09/91 552 -- -- -- -- -- -- -- .. Dry 0.3/09/92 552 -- -- -- -. _ _ -- -_ _ _ _ _ Dry 06/19/92 552 -- -- — -- -- -- .. _. _ _ Dry 11192 Page 2 of 17