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i i i W <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> May 1990 Through May 2005 <br /> Former BP Oil 11192 <br /> I <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE TBA Comments <br /> Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260E 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg11) (pg/1) 4tg11) (µg/1) (pg/1) (41) (ug/1) (µg11) (µg/1) <br /> I <br /> MW-5 continued <br /> 5/21/2004 5 63 1498 000 -935 037 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 0 50 ND<5 0 <br /> 8/10/2004 5 63 16 N 000 -1056 -121 -- ND<50 ND<O 50 ND<O 50 ND<0 50 ND<1 0 -- 1 9 ND<5 0 <br /> 11/24/2004 5 63 1674 000 -11 it -055 -- ND<50 ND<O 50 ND<0 50 ND<O 50 ND<l 0 -- ND<0 50 5 0 <br /> 2/25/2005 5 63 1472 000 -909 2 02 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<0 50 ND<5 0 <br /> 5/27/2005 5 63 1355 000 -792 1 17 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 10 54 <br /> MW-6 <br /> 8/5/1991 5 80 2982 000 -2402 - ND - ND ND ND ND -- - <br /> 8/15/1991 5 80 <br /> 12/9/1991 5 80 3042 000 -2462 -- ND ND ND ND ND -- -- <br /> 319/1992 5 80 2953 000 -23 73 0 89 ND -- ND ND ND ND -- -- -- <br /> 6/19/1992 5 80 2924 000 -2344 029 ND<50 -- ND<0 5 ND<0 5 ND<O 5 ND<O 5 -- -- - <br /> 9/18/1992 5 80 3103 000 -2523 -179 ND<5o ND<0 5 ND<0 5 ND<O 5 ND<O 5 -- -- <br /> 12/9/1992 5 80 3142 000 -2562 -039 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<O 5 -- -- _- <br /> 3/11/1993 5 80 28 95 000 -23 15 247 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<O 5 -- -- -- <br /> 6/15/1993 5 80 2691 000 -21 11 204 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<O 5 -- -- -- <br /> 9/15/1993 5 80 2729 000 -2149 -038 <br /> 12/22/1993 5 80 27 17 000 -2137 0 12 ND<50 -- ND<D 5 ND<0 5 ND<0 5 ND<O 5 <br /> 4/1/1994 5 80 2629 000 -2049 088 <br /> 7/27/1994 5 80 2632 000 -2052 -003 ND<50 - ND<D 5 ND<0 5 ND<0 5 ND<O 5 ND<5 0 -- - <br /> 11/30/1994 580 2680 000 -2100 -048 <br /> 2115/1995 580 2573 000 -1993 107 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- -- -- <br /> 4/21/1995 5 80 2374 000 -1794 199 <br /> 7/21/1995 580 2298 0 00 -17 18 076 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<l 0 - -- -- <br /> P 10/20/1995 5 80 2339 000 -1759 -041 ND<50 -- ND<O 50 ND<O 50 ND<p 50 ND<1 0 6 7 -- -- Pre-purge <br /> 11192 Page 10 of 19 <br />