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deep. The liner is rolled down the trench wall, across the trench floor, and then the trench is backfilled <br />and compacted to the specified embankment compaction standards. UMC will provide the Division <br />additional information, if so requested. <br />Geomembrane liner specifications. UMC will use a 45 -mil polypropylene geomembrane liner as <br />specified in the following link http://www.langecontainment.com/wordpress/wp- <br />content/uploads /2011 /02/45mi1- Polypropylene - Firestone.pdf. <br />Lake County progress report. UMC has a scheduled public hearing and presentation to a joint Lake <br />County Planning Commission and County Board of Commissioners meeting on August 22, 2011, at <br />7:OOpm at the Lake County Courthouse. This hearing is the culmination of an application for a <br />Conditional Use Permit for a legally conforming land use in an Industrial Mining zone. <br />Please contact me directly for additional information or clarification to this letter. I may be reached at <br />303 - 638 -2573, melder(a,unionmilling.com, or PO Box 36099, Denver, CO 80236 -0099. <br />incerely, <br />Michae der <br />Environmental Compliance and Permitting <br />Union Milling Company, LLC <br />Cc: Robert Calder — Hopemore Shaft <br />Tom Hendricks — Calais Resources Colorado, Inc. <br />M1990 -057 August 15, 2011 <br />