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TABLE 3 GROUNDWATER ANALYTICAL DATA Beacon Station No. 474 Well Date TPHg B T E X Depth to TOC GW Number u ugtL ugtL u ug1L GW Elevation Elevation Comments MW-5 03/31/98 <50 <0.50 <0.50 <0.50 <0.50 6Lt1 25.11 •36.00 screen 06/10/98 <.50 <0.50 <0.50 <0.50 <0.50 58.41 -3330 no odor/no sheen Interval 09/08/98 <50 <0.50 <0.50 <0.50 <0.50 58.41 -33.30 no odor/no sheen 65'-86.9 12/30/98 <50 <0.50 2.5 0.89 5.8 56.51 -31.40 no odor/no sheen 03/25/99 <50 <t1.50 <0.50 <030 <0.50 54.54 -29.43 no comment 06/03/99 <50 <0.50 <0.50 <0.50 <0.50 53.89 -28.78 no comment 08/30/99 95 1.7 7.4 2.1 15 56.04 -30.93 no comment 12/10/99 <50 <0.50 <0.50 <0.50 <0.50 55.99 -30.88 no comment 03/03/00 <50 <0.50 0.51 <0.50 0.92 54.53 -29.42 no odor/no sheen MW-6 03/31/98 78,000 23,000 8,500 1,100 6,300 61.43 25.44 -35.99 reported as MW-2A screen 06/10/98 120,000 23,000 17,000 1,600 15,000 58.69 -33.25 reported as MW-2A Interval 09/08/98 120,000 30,000 20,000 2,300 18,000 58.77 -33.33 odor/no sheen 56'-76' 12130/98 71,000 20,000 6,500 1,900 11,000 56.85 -31.41 slight odor 1 no sheen 03!25199 48,000 15,000 1,800 910 5,100 54.86 -29.42 no comment 06/03/99 33,000 9,600 2,500 1,100 5,400 54.14 -28.70 no comment 08/30/99 51,000 7,200 5,400 2,400 11,000 56.32 -30.88 no comment 12/10/99 67,000 13,000 2,400 1,800 9,500 56.29 -30.85 no comment 03/03/00 28,000 6,000 280 570 3,600 54.89 -29.45 no odor/no sheen MW-7 03/31/98 <50 @.50 <0.50 <0.50 <0.50 61.75 25.66 -36.09 seruo 06/10/98 <50 <0.50 <0.50 <0.50 <0.50 59.04 -33.38 no odor/no sheen Interval 09/08/98 <50 <0.50 <0.50 <0.50 <0.50 59A9 -33.53 no odor I no shun 56'-76' 12130/98 <5D <0.50 <0.50 <0.50 <0.50 57.18 -31.52 no odor/no sheen 03/25/99 <$0 <D.50 <0.50 <0.50 <0.50 55.07 -29.41 no comment 06/03/99 <50 <0.50 <D.50 <0.50 <0.50 54.61 -28.95 no comment 08/30/99 <50 <0.50 <0.50 <0.50 <0.50 56.85 -31.19 no comment 12/10/99 <50 <0.50 <0.50 <0.50 <0.50 56.68 -31.02 no comment 03/03/00 <50 <0,50 <0.50 <0.50 <0.50 55.61 -29.95 no odor/no sheen MW-8 03/31/98 100 <0.50 <0.50 <0.50 <0.50 61.51 25.68 -35.83 reported as MW-3A screen 06/10/98 80 0.9 <0.50 <0.50 <0.50 58.86 -33.18 reported as MW-3A interval 09/08/98 79 0.57 IC50 <0.50 <0,50 58.97 -33.29 slight odor/no sheen 56'-76' 12/30/98 51 2.4 0.69 <0.50 <0.50 57.13 -31.45 slight odor/no sheen 03/25/99 <50 <0.50 <0.50 <0.50 <0.50 55.09 -29.41 no comment 06/03/99 <50 <0.50 <0.50 <0.50 <0.50 54.42 -28.74 no comment 08/30/99 <50 0.67 <0.50 <0.50 <0.50 56.60 -30.92 no comment 12/10/99 330 <0.50 <0.50 <0.50 <0.50 56.57 -30.89 no comment 03/03/00 <50 <0.50 <0.50 <0.50 <0.50 55.28 -29.60 no odor/no sheen gwgmdatuds 1474.22tpt Page 2 of 4 HORIZON ENVIRONMENTAL INC. I