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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through June 2005 Former BP Oil 11195 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (4g/1) (µg/1) (µg/l) (µg/1) (µg11) {µg11) (µg11) (4g/1) MW-5 continued 10/15/97 10.70 12.28 0,00 -1.58 -4.57 2200 -- ND ND ND ND 93000 -- 01/15/98 10.70 10.98 0.00 -0.28 1.30 3600 -- ND ND ND ND 33000 -- 05/07/98 10.70 8.02 0.00 2.68 2.96 -- -- -- -- -- -- -- 09/03/98 10,70 10.28 0,00 0.42 -2.26 13000 -- ND ND ND ND 8000 09/15/98 13.56 10.45 0.00 3.11 2.69 ND - ND 0.57 ND ND -- 120 12/23/98 10.70 10.91 0,00 -0.21 -3.32 130000 -- ND ND ND ND 160000 -- 12/31/98 10.70 10,92 0.00 -0.22 -0.01 110000 -- ND ND ND ND 160000 -- 03/22/99 10.70 10.73 0.00 -0.03 0,19 85000 -- ND ND ND ND 95000 05/20/99 10.70 9.61 0.00 1.09 1.12 ND -- ND ND ND ND 2920 5000 08/11/99 10.70 11.00 0.00 -0.30 -1.39 ND -- ND ND ND ND 61600 60000 11/19/99 10.70 11.30 0.00 -0.60 -0.30 ND -- 100 ND ND ND 93000 110000 02/22/00 10.70 7.95 0.00 2.75 3.35 157 -- ND ND ND ND 49100 49000 05/05/00 10.70 9.36 1.34 -1.41 ND -- ND ND ND ND 4860 6070 08/28/00 10.70 10.80 0.00 -0.10 -1.44 ND -- ND ND ND ND 8040 10800 11/13/00 10.70 11.24 0.00 -0.54 -0.44 ND -- ND ND ND ND 5170 5550 02/09/01 10.70 10.95 0.00 -0.25 0.29 ND -- ND ND ND ND 6420 8490 05/11/01 10.70 10.25 0.00 0.45 0.70 ND ND ND ND ND 3570 3890 08/10/01 10,70 11.25 0.00 -0.55 -1.00 ND<250 ND<2.5 ND<2.5 ND<2.5 ND<2.5 3900 3700 11/21/01 10,70 11.82 0.00 -1.12 -0.57 ND<200 - ND<2,0 ND<2.0 ND<2.0 ND<2.0 3I00 3300 02/07/02 10.70 9.79 0.00 0.91 2.03 ND<500 -- ND<5.0 ND<5.0 ND<5.0 ND<5.0 6200 3900 05/23/02 10.70 10.71 0.00 -0.01 -0.92 -- ND<1000 ND<10 ND<10 ND<10 ND<20 -- 2500 08/15/02 15.40 11.15 0.00 4.25 4.26 -- 110 ND<0.50 ND<0.'50 ND<0.50 ND<1.0 120 11/18/02 15.40 9.61 0.00 5.79 1.54 ND<1000 ND<10 ND<10 ND<10 ND<20 -- 1200 02/13/03 15.40 10.82 0.00 4.58 -1.21 -- ND<500 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 1600 11195 Page 11 of 25 '.1�_d�h•4:::l'__L_'e ti`�..�11. �2�.!'.1`�L�S.`.i•. .`:�!......1�1 L'�-it.•.5� �15�.'Si4L•':ti•::1_�4::�.ti•..CtLt•_...ti�Lt.... _u �� ,_ «�«w ti��...�..�...ti-::v titi1��=.:�at�::�«�:i;«.._ti;�._tia. . :� itititiuti�a:RUU� .:5 ..