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Table 2 <br /> HIS1 OR1C FLUID LEVELS AND SELECTED ANALYTICAL RESULT S <br /> May 1990 Through August 2004 <br /> Former BP Oil 11192 <br /> Date TOC Depth to LPH Ground- Change TPN-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE TBA Comments <br /> Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 82608 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (pg/1) (µg11) (41) (µg11) (µg/1) (µg/1) (µg/l) <br /> MW-4 continued <br /> 11/30/94 6 75 2797 000 -2122 -0 51 -- -- -- -- -- -- - <br /> 02/15/95 6 75 26 85 000 -20 10 l 12 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- -- <br /> 04/21/95 6 75 2477 000 -1802 2 08 -- -- - - - - -- -- - <br /> 07/19/95 6 75 2407 000 -17 32 070 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<I 0 - - -- <br /> P 10/20/95 6 75 -- - - - ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<5 0 - -- Pre-purge <br /> D 10/20/95 6 75 2450 000 -1775 000 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<5 0 - <br /> P 04/23/96 6 75 - - - - ND<500 ND<0 5 ND<0 5 ND<0 5 ND<0 5 14 - Pre-purge <br /> D 04/23/96 675 21 13 000 -1438 000 ND<500 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<10 - - <br /> 07/12/96 675 2042 000 -13 67 071 <br /> 10/18/96 6 75 19 63 000 -1288 079 130 - ND<0 5 ND<l 0 ND<l 0 ND<1 0 ND<10 - <br /> 02/26/98 675 13 01 000 -6 26 662 ND<50 - ND<0 5 ND<l 0 ND<l 0 ND<1 0 ND<10 -- - <br /> 07/07/98 675 1261 000 -5 86 040 ND<50 - ND<0 5 ND<l 0 ND<1 0 ND<1 0 ND<10 -- -- <br /> 01/19/99 675 1459 000 -7 84 -1 98 ND<50 -- ND<1 0 ND<l 0 ND<l 0 ND<1 0 26 -- <br /> 07/14/99 6 75 1355 000 -680 1 04 ND<50 -- ND<l 0 ND<l 0 ND<l 0 ND<1 0 83 -- -- <br /> 10/07/99 6 75 1508 000 -8 33 - 220 -- ND<I 0 ND<l 0 ND<1 0 ND<l 0 170 - <br /> 01/20/00 6 7S 15 40 000 -8 65 -032 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 320 -- - <br /> 04/11/00 6 75 1431 000 -756 1 09 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 6 4 -- - <br /> 07/14/00 6 75 1302 000 -627 1 29 98 ND<0 5 ND<0 5 ND<0 5 ND<0 5 290 <br /> 10/26/00 6 75 1459 000 -784 -1 57 190 -- 2 1 9 0 7 3 2 1000 -- -- <br /> 01/16/01 6 75 1441 000 -766 0 18 400 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 510 - <br /> 04/12/01 675 1297 000 -622 144 400 -- ND<0 5 ND<0 5 ND<0 5 ND<l 5 544 - - <br /> 07/23/01 675 1468 000 -793 -1 71 440 - ND<0 5 ND<0 5 ND<0 5 ND<1 5 610 - - <br /> 08/16/01 6 21 15 07 000 -886 -093 -- - -- -- - -- <br /> 11/09/01 6 21 1604 000 -9 83 - ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 530 470 ND<50 <br /> 11192 Page 6 of 18 <br />