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i Table 1 CURRENT FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 30,2004 Former 76 Station 6981 Date TOC Depth to LPH Ground- Change in T?H-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water Elevation 8260B benzene Xylenes 8021B 8260B Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg11) (µg11) (µg11) (µ81I) (µg/1) (µg/l) (}tg/l) MW-1 (Screen Interval In feet:510-55 0) 12/30/04 1107 3494 000 -2377 053 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<O 50 MW-2 (Screen Interval in feet:51..0-55.0) 12130/04 1156 3627 0 DO -2471 066 63 — 15 Nl <0 50 NDN 50 ND<1 0 — ND<O 50 MW4 (Screen Interval In feet 510-55 0) 12/30/04 1163 3560 000 -2397 052 ND<50 -- ND<O 50 ND<O 50 ND<O 50 21 — ND<O 50 h'-5 (Screen Interval in feet 50 0-55 0) 12/30/04 1152 3555 000 -2403 059 ND<50 — ND<O 50 ND<O 50 NDN 50 10 -- ND<O 50 MW-6 (Screen Interval In feet 490-690) 12/30/04 1143 3530 000 -23 87 063 61 — 055 051 12 57 -- ND<O 50 MW-7 (Screen Interval in feet 490-690) 12/30/04 1182 3605 000 -2423 067 ND<50 — 052 ND<O 50 080 37 -- ND<O 50 MW-8 (Screen Interval in feet 490-69-0) 12/30/04 1038 3391 000 -2353 051 ND<50 -- ND<O 50 ND<O 50 NDN 50 ND<10 — ND<O 50 MW-9 (Screen Interval in feet $00-70-0) 12/30/04 1176 3550 000 -2374 059 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<1 0 — I 1 MW-11 (Screen Interval m feet-54 0-72 0) 12/30/04 1123 3593 000 -2470 078 — -- -- — __ __ — — unable to sample-casing bent MW-14 (Screen Interval In feet 18 0-38 0) 12/30/04 1159 3594 000 -2435 — ND<50 — ND<O 50 ND<0 50 ND<O 50 ND<l 0 -- 12 MW-15 (Screen Interval in feet 18 0-38 0) 12/30/04 1137 3615 000 -2478 -- ND<50 — ND<O 50 ND<0 50 ND<O 50 ND<l 0 -- 30 MW-16 (Screen Interval in feet 190-380) I2/30/04 1220 3635 000 -2415 -- 110 -- 10 ND<O 50 40 71 -- 12 PTW 1 (Screen Interval In feet.52.5.72.5) 0981 Page 1 of 2 I I