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i. A complete set of current specifications... The June 9, 2017 response is not <br /> adequate. The specifications provided have a ''DRAFT" watermark and are not <br /> acceptable as they would be expected to change prior to construction. Review of <br /> DRAFT specifications by the Division would be pointless. Again, please provide <br /> a complete set of current final specifications intended for the pad extension <br /> signed by a professional engineer licensed in Colorado <br /> CC&V Response: NewFelds has provided the final earthwork specifications for <br /> the pad extension (attachment 1). The earth work specifications have been signed <br /> by a professional engineer. These specifications will be used when constructing the <br /> pad extension. <br /> ii. Rationale for why three different slopes are proposed The June 9, 2017 response <br /> is adequate. <br /> iii. Discussion on ivhether or not additional liner is required Previously adequate <br /> response. <br /> Drawings <br /> H) Drawing 20-647-001A. The response is adequate. <br /> 1) Dravving 20-647-002A. The response is adequate. <br /> Nonagglomerated Tailings Strength Assessment and Stability Evaluation. <br /> J) The Technical Memorandum (TM)prepared by NewFields: <br /> i. A realistic assessment of the worst case ratio of tailings to ore — The June 9, <br /> 2017 response is adequate. <br /> ii. A written commitment to follow NewFields' recommendation in Section 4.0 — <br /> Previously adequate response. <br /> Si(pplemental Strength Assessment and Stability Evaluation Technical Memorandum. <br /> K) The Technical Memorandum (TM)prepared by NewFields (dated March 8, 2017): <br /> i. Revisions to achieve the required Factors of Safety and addressing the <br /> comments in Item L below. Previously adequate response. <br /> ii. Requested specifications in Item G(i). The response is not adequate, see Item G(i) <br /> above. <br /> L) Slope stability analyses (Attachment A). Please revise the analyses to include the following: <br /> i. Section A -fully loaded haul truck and seepage layer—the response is adequate, <br /> ii. Section B -fully loaded haul truck and the 3,00013,360 ton stockpile, concentrate <br /> storage structure and concrete base the response is adequate. <br /> Additional Comments. <br /> 2 <br />