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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through December 2004 <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 an 8260B benzene Xylenes 8021B 82608 <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (nll) (µg/l) (PSA) 4gll) (Rg/1) (RA (4 0) (9911) <br /> MW-2 continued <br /> 01/25/99 1156 2843 0 00 -1687 083 2200 -- 610 21 24 72 270 170 <br /> 04/19/99 1156 26 l0 000 -1454 233 1700 -- 440 20 18 57 310 180 <br /> 07/I5/99 1156 2737 000 -15 81 -127 620 — 130 ND<2 5 5 1 17 120 180 <br /> 10/25/99 1156 2907 000 -1751 — 710 — 120 21 6 29 240 200 <br /> 01/27/00 1156 2853 000 -1697 054 490 -- 62 20 52 24 170 140 <br /> 06/26/00 11 56 2584 000 -1428 269 489 — 38 3 N1)co Soo 532 107 879 <br /> 09/22/00 1156 2901 000 -1745 -3 17 8000 -- ND<20 ND<20 ND<20 370 120 100 <br /> 12/26/00 1156 2890 000 -1734 0 l l 5270 — 476 10 7 ND<10 0 217 ND<100 785 <br /> 03/07/01 1156 2859 000 -1703 031 861 — 428 259 NDQ.50 17 67 1 732 <br /> 06/26/01 1156 2965 000 -1809 -106 400 — 27 21 1 1 10 53 47 <br /> 09/12/01 1156 3153 000 -1997 -188 360 -- 25 16 ND<O 50 84 51 62 <br /> 12/12/01 1156 3178 000 -2022 -025 700 -- 77 ND<2 0 ND<2 0 23 75 94 <br /> 03/20/02 1156 3055 000 -1899 123 650 -- 120 21 ND<2 0 17 100 78 <br /> 06/06/02 1156 3102 000 -1946 -047 -- 390 53 1 1 ND<O 50 36 — 56 <br /> 09/30/02 1156 3354 Goo -2198 -252 — 10000 900 57 490 1800 -- 60 <br /> 12/30/02 1156 3305 000 -2149 049 -- 4100 460 ND<2 5 35 250 — 49 <br /> 03129/03 1156 3199 000 -2043 106 -- 960 43 087 57 24 -- 31 <br /> 06/25/03 1156 3247 000 -2091 -048 -- 410 10 ND<O 50 ND<O 50 3 1 — 19 <br /> 09/24/03 1156 3478 000 -2322 -231 -- 2100 81 ND<2 5 70 97 — 10 <br /> i M0/03 1156 3423 000 -2267 055 -- 370 12 055 ND<O 50 21 -- 50 <br /> 03/09/04 1156 3334 000 -2178 089 -- 200 92 ND<O 50 ND<O 50 33 — 32 <br /> 06/16/04 1156 3401 000 -2245 -067 - 240 66 ND<O 50 NT3<0 50 20 -- 13 <br /> 09/20/04 1156 3693 000 -2537 -292 83 -- 44 ND<O 50 ND<O 50 ND<l 0 063 <br /> 12/30/04 1156 36 27 000 -2471 066 63 — 15 ND<O 50 ND<O 50 ND<l O -- ND<O 50 <br /> 6981 Page 5 of 35 <br />