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0 <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through March 2005 <br /> Former 76 Station 6981 <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments <br /> Sampled Elevation Water Thickness water in 8260E benzene Xylenes 8021B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (41) (µg/1) (µg/l) (µg/l) (µg/l) (µg/l) <br /> MW-11 continued <br /> 10/21/92 - -- - -- -- ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 01/13/93 -- -- -- -- ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - -- <br /> 04/26/93 I 1 23 5083 000 -3960 -- ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 07/26/93 1123 5200 000 -4077 -1 17 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - -- <br /> 10/20/93 1123 52 42 000 -41 19 -042 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - -- <br /> 01/17/94 11 23 4980 000 -3857 262 340 -- 71 47 19 84 -- -- <br /> 02/28/94 11 23 48 65 000 -3742 1 15 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - -- <br /> 04/25/94 11 23 4766 000 -3643 099 ND<50 -- ND<0 5 1 ND<0 5 1 3 -- -- <br /> 07/25/94 11 23 5021 000 -3898 -255 ND<50 - ND<0 5 057 ND<0 5 1 2 - -- <br /> 10/26/94 11 23 5141 000 -40 18 -120 ND<50 - ND<0 5 1 1 ND<0 5 12 -- - <br /> 01/25/95 11 23 4857 000 -37 34 284 ND<50 -- ND<0 5 064 ND<0 5 089 -- -- <br /> 04/26/95 1123 4423 000 -33 00 434 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 07/26/95 11 23 4524 000 -3401 -101 ND<50 -- 091 27 ND<0 5 27 - -- <br /> 10/25/95 11 23 4605 000 -3482 -081 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- - <br /> 01/24/96 11 23 43 12 000 -31 89 293 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 04/25/96 I 1 23 3855 000 -2732 -- ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<40 -- <br /> 07/24/96 11 23 3891 000 -2768 -036 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 - <br /> 10/23/96 11 23 4064 000 -2941 -1 73 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 -- <br /> 01/20197 11 23 37 18 000 -2595 346 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 -- <br /> 07/16/97 -- -- -- __ _ _ Paved Over <br /> 10/15/97 -- -- -- -- __ <br /> -- -- -- -- -- -- -- -- Paved Over <br /> 12/08/97 -- -- - -- -- -- - Paved Over <br /> 03/05/98 -- -- - -- - __ _ Inaccessible <br /> 03/16/98 It 23 3152 000 -2029 -- 240 -- 97 16 23 12 32 ND<10 <br /> 6981 Page 22 of 36 <br />