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• <br />Lift No. Lift Saturated Total Saturated <br /> Density Moisture Density Moisture <br /> Content Content <br /> (PCF) (%) (PC F) (%) <br />1 81.1 40.2 -- -- <br />2 91.9 31.1 88.0 34.2 <br />3 92.8 30.5 89.5 33.0 <br />Values of permeability were calculated for the column <br />with bottom drainage. These values were calculated at the time <br />when solids settlement was complete and tailings liquor at the <br />surface of the deposit was draining through the tailings. The <br />ultimate values of permeability for each lift are presented <br />below: <br />u <br />Lift No. Permeability <br />(ft./yr.) (cm/ <br />1 26.0 2.5E <br />1 2 18.4 1.8E <br />3 5.4 5.2E <br />1.2 Tailings Box Deposition Studies <br />Gradient <br />sec) (i) <br />- 05 1.5 <br />- 05 1.0 <br />- 06 0.6 <br />The tailings box deposition study allows for measurements to <br />be made of the settlement characteristics of the tailings in an <br />environment which allows the development of a beach. The drainage <br />path available for the tailings can therefore be clwser to three <br />dimensional. Tailings were deposited into the box ir, a series of <br />lifts in order to study the beaching characteristics. A measurement <br />of the height of the each lift was made at the time of deposition <br />and prior to the addition of the next lift. The results of this study <br />are presented in Appendixes E; <br /> <br />