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1 <br /> <br /> <br />i <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br />1 <br />1 <br /> <br /> <br />1 <br />44 <br />1 system around the entire perimeter of the tailings <br />2 disposal facility. <br />3 The spigots are turned off o.r on in an <br />4 area just large enough to -- just long enough to <br />5 allow deposition of a thin layer of tail:~ngs and <br />6 then they move to the next area. The spigots are <br />7 turned on in the next area and off in the previous <br />8 area, the thin layer of tailings deposits along a <br />9 beach area. <br />10 What this does is this allows the <br />11 tailings to dry out and densify in that thin layer <br />12 before you go back and put another thin layer of <br />13 slurry on top of them, it allows you to make the <br />14 best use of the tailings area capacity because you <br />15 are densifying the tailings as you place them. <br />16 It also creates lower permeability <br />17 tailings because as the things dry out arnd desiccate <br />18 and densify, the permeability decreases. It also <br />19 allows the tailings to consolidate quite :rapidly <br />20 and, unlike traditional tailings impoundments, when <br />21 this facility is completed, you can begin <br />22 reclamation fairly quickly because you don't have <br />23 that mass of unconsolidated wet materials sitting <br />24 out there waiting to dry out before you can get <br />25 equipment on to reclaim it. <br />AGREN, BLANDO & BILLINGS <br /> <br />