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• Destructive samples will be taken every 1,OOO1f of seam from the material in the trench <br />area. At least 2 samples will be taken if less than 2,OOO1f of seam installed. <br />• Destructive samples will be sent to a lab for testing (peel and shear). The test values will <br />be a minimum of 80% of parent material strength. <br />• The liner contractor shall supply daily reports to the Owner. <br />Liner Stabilization, Historic Tailings Placement, Slope Ballast Installation <br />• Performed by Owner, monitored by Mill Superintendent and /or Owner's Engineer. <br />Tailinjzs Slurry Piping, Decant Water Pumps <br />• Performed by Owner, monitored by Mill Superintendent and/or Owner's Engineer. <br />Construction Schedule <br />The proposed construction schedule for the TSF follows. Reference QA/QC plan for additional details on <br />the listed activities. UMC will provide the Division 48hr notice on the CDRMS inspections. UMC will <br />also provide the Division 48hr notice on the optional inspections, but will proceed if the Division elects <br />not to inspect. The Division will be provided specific calendar dates following initiation of construction. <br />General Site Preparation <br />Clearing, Grubbing/Topsoil Removal /Storage <br />Impoundment Excavation/Embankment Construction <br />Geosynthetic Clay Liner Installation <br />Leak Detection Installation /Sump Construction <br />Impoundment Liner Installation <br />Historic Tailings Placement, Slope Ballast Installation <br />Tailings Slurry Piping, Decant Water Pumps <br />2days <br />No inspection <br />10days <br />CDRMS optional <br />20days <br />CDRMS inspection <br />5days <br />CDRMS inspection <br />incl. w /above <br />incl. w /above <br />5days <br />CDRMS optional <br />5days <br />No inspection <br />M1990 -057 May 14, 2013 <br />