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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through September 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 Watcr Thickness water in 8260B benzene Xylenes 8021B 8260D <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feat) (feet) (µg11) (µg11) (ji.0) (µg11) (µg11} (110) (µg/1) (110) <br /> VW-4 continued <br /> 09/24/03 1176 3445 000 -2269 -237 — ND<50 ND<O 50 061 ND<O 50 ND<1 0 — 29 <br /> I2/30103 1176 3395 000 -2219 050 — ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 60 <br /> 03/09/04 1176 33 02 000 -2126 0 93 — 870 073 ND<O 50 90 180 — 4.3 <br /> 06/16/04 1176 33 66 000 -2190 -064 -- 930 ND<O 50 ND<O 50 91 86 — 32 <br /> 09/20/04 1176 — — -- -- — -- — — -- — — — Dry well <br /> VW-7 (Screen Interval in feet 55 0-60 0) <br /> 0821199 -- 2857 -- — -- 37000 — 2500 6100 610 7000 ND<250 510 <br /> 10/25/99 -- 2954 — -- -- 33000 — 2900 6800 680 7800 ND<500 47 <br /> 01/27/00 -- 2902 -- -- -- 23000 2000 5600 860 9900 120 75 <br /> 06/26/00 -- 2627 — — -- 28700 — 1560 3800 ND<50 0 8310 ND<500 414 <br /> 09/22/00 1167 2843 000 -1676 -- 8500 — 610 2,200 12 4,900 300 35 <br /> 12/26/00 1 167 2834 000 -1667 009 37900 -- 1,420 3,330 328 10,000 ND<500 NIK100 <br /> 03/07/01 1167 28 03 0 00 -1636 031 34400 -- 853 2750 394 8900 ND<500 ND--AO <br /> 06/26/01 1167 2908 0 00 -1741 -105 31000 -- 660 2100 150 7900 ND<500 ND<50 <br /> 09/12/01 1167 3094 0 00 -1927 -186 34000 -- 870 1800 780 7900 ND<1000 ND<50 <br /> 12/12/01 1167 3121 0 00 -1954 -027 29000 -- 710 1000 200 5100 ND<500 ND<33 <br /> 0320102 1167 3007 000 -1840 114 26000 — 590 930 640 4700 ND<500 ND<40 <br /> 06/06/02 1167 3047 000 -1880 -040 — 2100 22 62 61 450 — ND<2 0 <br /> 09/30/02 1167 3296 000 -2119 -239 — 30,000 380 760 570 3,800 — ND<100 <br /> 12/30/02 1167 3260 000 -2093 026 — 24,000 170 350 550 3,100 -- ND<I00 <br /> 03/29/03 1167 3125 000 -1958 135 — 18,000 160 240 470 2,600 — ND<400 <br /> 06/25/03 1167 3207 000 -2040 -082 — 14,000 77 110 210 1,100 — ND<20 <br /> 09/24/03 1167 34 27 000 -2260 -220 -- 23000 20 63 420 2000 — ND<50 <br /> 12/30/03 1167 3416 000 -2249 011 -- 18000 ND<5 0 18 290 960 — ND<20 <br /> 6981 Page 34 of 35 <br />