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<br /> <br />GOLD HILL MILL <br />FILE NO. M-94-117 <br />EVALUATION OF PROCESS WATER CONTAINMENT CAPACITY <br />GIVEN: <br /> <br />Available storage in Hazel A Adit when dry 0.15 ao-ft <br />Available storage in tailings pond when dry (to risers) 0.52 ao-ft <br />Subtotal 0.67 ao-ft <br />Stormwater inflow to tailings pond (100 yr-24 hr) 0.45 ao-ft <br />Available storage in tailings pond after 100 yr event 0.22 ao-ft <br />CONCLUSION: <br />per Sorenson 2/27/98 <br />per Sorenson 2/27!98 <br />per Sorenson 2/27/98 <br />per Sorenson 2/27/96 <br />per Sorenson 2/27/96 <br />According to calculations performed by Sorenson of the DMG, there is 0.22 ao-ft excess process <br />water storage capacity in the Hazel A Adit and tailings pond, when they are dry, above <br />and beyond the inflow from a 100 yr-24 hr storm. <br />.~--„ <br />SIGNED: James B. Cowart, P.E. <br />~~ ~VdL~ill <br />Environmental Scientists and Engineers, Inc. 10/24/97 ._• v,. +~.. <br />