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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS May 1990 Through November 2001 )Former BP Oil 11192 Date TOC Depth to LPH Ground- Change TPH-G TPPHj Benzene Toluene Ethyl- Total MTBE MTBE TBA Comments Sampled Elevation Water Thickness water in 8260$ benzene Xylenes 8021B 8260E 8260B Elevation Elevation ` (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/lj` (W) (µg11) (µg/1) (µg/1) (µg/1) (µgll) (I�9/1) D MW-5 continued D 09/18/92 6 15 3192 000 -2577 000 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- -- - 12/09/92 6 15 3214 000 -2599 -022 ND<50 -- ND<O 5 ND<0 5 ND<O 5 ND<O 5 -- -- - 03/11/93 6 15 2948 000 -2333 000 ND<50 -- ND<O 5 ND<0 5 ND<0 5 ND<O 5 -- -- -- D 03/11/93 6 I5 2948 000 -2333 266 ND<50 -- ND<O 5 ND<0 5 ND<0 5 ND<0 5 -- -- -- 06/15/93 6 I5 2745 000 -2130 2 03 ND<50 -- ND<O 5 ND<0 5 ND<0 5 ND<O 5 -- -- 09/15/93 6 15 2797 000 -2182 -052 -- -- -- — -- -- — 12/22/93 6 15 2779 000 -2164 018 ND<50 - ND<O 5 ND<0 5 ND<0 5 ND<O 5 - -- i 04/01/94 6 15 2691 000 -2076 088 07/27/94 6 I5 2696 000 -2081 -005 ND<50 -- ND<O 5 ND<0 5 ND<0 5 ND<O 5 ND<5 0 -- -- I L/30/94 6 15 2741 000 -2126 -045 -- - - -- -- -- -- -- -- 02/15/95 6 15 2626 000 -2011 1 15 ND<50 -- ND<O 50 ND<O 50 ND<0 50 ND<l 0 -- -- -- 04/21/95 6 15 2423 000 -1808 2 03 -- -- -- -- -- -- -- -- -- 01119/95 615 2346 000 -1731 077 ND<50 - ND<O 50 ND<O 50 ND<0 50 ND<l 0 10/20/95 6 15 2394 000 -1779 -- -- -- -- -- -- -- i 04/23/96 6 15 2060 000 -1445 334 ND<500 - ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<10 -- 01/12/96 6 15 21 18 000 -1503 -058 - -- -- — -- -- -. — 10/18/96 6 15 2035 000 -1420 0 83 ND<50 -- ND<0 5 ND I 02/26/98 6 15 1250 000 -635 785 ND<50 - ND<O 5 ND 07/07/98 6 15 1210 000 -595 040 ND<50 ND<O 5 ND 01/19/99 6 15 1422 000 -807 -212 07/14/99 6 15 1408 000 -793 014 -- - — -- -- -- -- -- -- 10/07/99 6 15 1370 000 -755 -- -- -. -- -- -- -- 01/20/00 6 15 1442 000 -827 -072 -- -- -- -- -- -- 04111100 615 14 67 000 -852 -025 -- -- -- -- -- -- -- -- 11152 0 Pagle 18 ±