2011-09-09_REVISION - M1981185 (43)

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Mr. Wallace H. Erickson Response to August 23, 2011 Bird Memorandum September 9, 2011 Page 2 3) Under Field Management, the first water sample collected must include the complete ground water analytical suite. The analytical suite in later samples may be pared down depending on the results of the earlier sampling and only with Division approval. 4) State the means by which the tailings will be conveyed to the disposal area, i.e., pipeline, haulage, or other means. Response to Adequacy Issue No. A. Response to Adequacy Issue No. A.1. Wildcat is using filter or vacuum press as the dewatering unit as outlined in Exhibit D with a commitment to add a binder if the materials have a tendency to slump or flow. The examples used in the mining industry use cyclones to dewater the tailings. Cyclones when compared to the filter press do not remove moisture from mine rock to levels that are considered equal to or less than saturation. The filter press, as presented in this mine plan, has been demonstrated to remove moisture content to levels (10 -12 %) that are equal to or less than rock material water saturation content. In regard to where dry cemented tailings have been disposed above or underground, this method is being implement at the following mine sites: • Barrick Goldstrike Mines, Inc., Elko, Nevada; • Mineral Ridge, Nevada; • Molycorp, Mountain Pass, CA; • Meikle Mine - Carlin, NV; • Colorado Goldfields, CO; • La Coipa, Chile; and, • Other mines include Greens Creek in Alaska, Pogo in Alaska, Nixon's Fork in Alaska, Kensington in Alaska, TVX in Montana, and J.R. Simplot in Nevada. Wildcat will clarify Attachment D -5 to the Environmental Engineering Summary section at Page 2 to 3, as follows: • Submit technical memorandum with updated analysis and any modified design, including the location of underground dry stacked tailings, for the DEN 97, 591, 783v2 9 -9 -11 GREENBERG TRAURIG, LLP • ATTORNEYS AT LAW • WWW.GTLAW.COM