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_ Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS September 1996 Through June 2005 76 Station 5886 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Sampled Elevation Water Thickness water in 826013 Comments benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg11) (µg11) /1 {Ng ) (NS/1) (Ng11) MW-9D continued 11/20/03 -0 94 624 000 -7 18 046 __ _- _ 02/11/04 -0 94 607 000 -701 0 17 __ "- Monitored Only ND<50 ND<0 50 ND<0 50 067 21 ND<2 0 05/27/04 -094 6 OS 0 00 -6 99 002 __ __ _ _ 08/30/04 -094 620 000 -714 -0 15 ND<50 _ Nn "- Monitored Only D 11/23/04 -094 5 93 000 -687 027 02/23/05 -0 94 573 000 -667 020 ND<50 -- N -` Sampled Semi-Annually D<O 50 ND<0 50 ND<0 50 ND<1 0 ND<0 50 06/06/05 -D 94 599 000 -693 -026 -- __ _ '- Sampled semi-annually MW-9I (Screen Interval in feet 17 0-22 0) 04/14/99 -085 6 34 000 -719 _ ND _ 06/01/99 -085 674 000 -759 -040 ND ND ND ND ND __ ND ND ND ND ND ND 08/16/99 -085 709 000 -794 -035 54 __ ND ND 079 1 7 ND ND 11/29/99 -085 705 000 -790 004 ND -- ND ND ND ND ND ND 02/28/00 _08s 548 000 -633 1 57 ND D 02/28/00 -0 85 548 0 00 -633 157 ND ND ND ND ND ND 05/10/00 -085 635 000 -720 -087 ND -- -_ 0$/03100 -0 85 697 0 OD -782 -062 ND ND ND ND ND ND ND 1116100 -085 652 000 -737 045 ND _- ND ND ND ND ND ND 02/05/01 -0$5 653 000 ND ND ND 0 64 ND ND -7 38 -0 01 ND - ND ND ND ND ND ND 05/07/01 -085 627 000 -7 12 026 ND -- ND ND ND ND ND ND 08/20/01 -085 7 11 000 -796 -084 ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 11/19/01 -085 653 000 -738 058 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<l 0 02/11/02 -085 643 000 -728 0 10 ND<50 ND<0 50 099 ND<0 50 077 ND<2 5 ND<2 0 05/02/02 -085 650 000 -735 -0 07 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 F 09/01/02 -085 6 74 000 -759 -024 __ ND<50 ND<0 50 ND<0 50 ND<0 50 ND 5886 Page 25 of 31