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Annual Inspections and Reports have been performed by Jay Moore, P.E. of Newfields since <br /> 2013. During the Annual Inspections, Mr. Moore observes the overall stability of the <br /> embankment, including slopes, benches, foundation and internal solution ponds. He verifies the <br /> operation construction to ensure it is in accordance with the project design. He also evaluates the <br /> underdrain flow and water quality with respect to the leach facility containment and <br /> performance. <br /> Flyover topography was developed for each year since 2013 and changes were evaluated in <br /> Autodesk Civil 31) software for any changes that would require attention. Mr. Moore, P.E. <br /> certified in each of the Annual Reports that the Arequa Gulch VLF was performing properly and <br /> as it was designed. <br /> In the construction of the embankment and in the years that it has been built, no slope stability <br /> issues have been encountered of any significance. The embankment has been inspected by <br /> qualified personnel and no problems have been reported. Due to the quality of the original <br /> analyses performed and the performance of the embankment to date, I certify that the Arequa <br /> Gulch VLF will not adversely affect Highway 67. This evaluation also applies to other structures <br /> located within 200 feet of the affected area of the Arequa Gulch VLF. <br /> If any future information requires changes to this certification, or changes to the design slopes, <br /> mine plan, reclamation plan, etc., the Division will be notified and the appropriate changes will <br /> be submitted. <br /> Date: 1/29/17 <br /> Greg Lewicki, P.E. <br /> Principal Engineer <br /> Greg Lewicki and Associates <br /> 00 R EG, <br /> Q�;.•Y C•''• <br /> 20335 <br /> Evaluation of Squaw Gulch Valley Leach Facility (SGVLF) <br /> 44 <br />