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i • • <br /> 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 Water Thiclmess water in 8260E benzene Xylenes 8021B 9260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (Agll) (Iig),) (1+1) (u8n) (PLO) (µ81l) (118/1) (µ8n) <br /> MW-9 continued <br /> 06/26/01 1176 2982 -- -1706 -091 ND<50 — ND<O 50 ND<O 50 ND<O 50 NDN 50 ND<5 0 ND<2 0 <br /> 09/12/01 1176 3072 -- -1896 -190 ND<50 — 094 ND<O 50 ND<0 50 NDN 50 ND<5 0 ND<2 0 <br /> 12/12/01 1176 31 08 -- -1932 -036 ND<50 — NDN 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<1 0 <br /> 03/20/02 1176 2986 -- -1810 122 ND<50 - ND<O 50 NDN 50 ND<O 50 NDN 50 ND<5 0 ND<2 0 <br /> 06/06/02 1176 3031 -- -1855 -o45 — ND<50 ND<O 50 NDN 50 NDN 50 ND<1 0 — NDS 0 <br /> 09/30/02 It 76 32 64 -- -2088 -233 — 160 55 82 45 20 — ND<2 0 <br /> 12130/02 1176 3285 -- -2109 -021 — — -- -- — -- -- -- <br /> 03/29/03 1176 3141 — -1965 144 — ND<50 ND<O 50 ND<O 50 NDN.50 ND<I 0 — ND<2 0 <br /> 06/25/03 1176 3166 -- -1990 -025 - ND<50 NDN 50 ND<0.50 ND<O 50 ND<l 0 -- ND<2 0 <br /> 09/24/03 1176 3396 000 -2220 -230 — ND<50 ND<0 50 0 54 NDN 50 ND<1 0 -- ND<2 0 <br /> 12/30/03 1176 3354 000 -2178 042 -- 77 ND<O 50 13 ND<O 50 19 — ND<2 0 <br /> 03/09/04 1176 3255 000 -2079 099 — ND<50 ND<O 50 ND<O 50 NDN 50 12 — ND<2 0 <br /> 06/16/04 1176 3321 000 -2145 -066 -- 60 ND<O 50 064 ND<O 50 ND<1 0 — NDN 50 <br /> 09/20/04 1176 3608 000 -2432 -287 ND<50 -- ND<O 50 NDN 50 ND<O 50 ND<1 0 — 18 <br /> MW-10 (Screen Interval 1n feet DNA) <br /> 10/21/92 — — -- -- — ND<50 — ND<O 5 ND<O 5 NDN 5 NDN 5 -- — <br /> 01/13/93 — — -- — — ND<50 -- NDN 5 ND<O 5 ND<O 5 ND<O 5 -- — <br /> 04/26/93 1044 4825 000 -3781 -- ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 <br /> 07/26/93 1044 4922 000 -3878 -097 ND<50 -- ND<O 5 ND<O 5 ND<O 5 NDN 5 -- -- <br /> 10/20/93 1044 4968 000 -3924 -046 ND<50 — ND<O 5 ND<O 5 ND<O 5 NDaO 5 -- — <br /> 01/17/94 1044 4729 000 -3685 239 250 — 42 3 12 53 -- -- <br /> 02/28/94 1044 4624 000 -3580 105 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- -- <br /> 04/25/94 1044 4530 000 -3486 094 ND<50 — NDN 5 ND<O 5 NDN 5 11 -- — <br /> 07/25/94 1044 4768 000 -37 24 -238 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — -- <br /> seal Page 20 of 35 <br />