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1 <br /> were established so that product and water <br /> ' elevations could be determined (Table 1) . <br /> ' The distribution of gasoline as defined by <br /> exploratory pits on Time Oil and adjacent property <br /> ' is shown on Figure 2. When first excavated, pit T12 <br /> had 3 . 1 feet of gasoline floating on the water table <br /> (measured the morning after) . Pits T4, Tll and T13 <br /> initially had from 1.4 to 2 . 4 feet of gasoline. <br /> ' On March 1 and 2, 1988 a product recovery trench was <br /> installed between test pits T1, T3 , T4, Tll and T12 <br /> ' (Figure 2) . The trench was excavated by backhoe to <br /> a depth of 6 to 7 feet. Five 8-inch diameter <br /> recovery wells were installed to a depth of 10 feet <br /> at the pit locations. The trench was backfilled <br /> with gravel to within 3 feet of the surface, and <br /> ' with soil to the surface. During excavation water <br /> and gasoline was continuously pumped from the pits <br /> ' and trench by a vacuum truck. This water and <br /> gasoline is presently being held in an aboveground <br /> ' tank at the terminal. After pumping, product <br /> thickness has remained less than 8 inches. <br /> ' F. Groundwater Monitoring <br />' After initial observations in the test pits were <br /> completed, three of the pits (in addition to the <br /> five noted above) were deepened to 10 feet with a <br /> backhoe and slotted 8 inch diameter PVC casing was <br /> installed as an observation well. The well casings <br /> were backfilled with gravel to within 3 feet from <br />' the ground surface and with soil to the surface <br /> (Appendix D) . The remaining pits were backfilled <br /> with soil . On March 8, 1988, Time Oil began taking <br /> 1 <br /> I - 5 - <br />