Laserfiche WebLink
Activity <br />Duration <br />Inspection <br />General Site Preparation <br />2 days <br />No Inspection <br />Clearing, Grubbing, Topsoil Removal /Storage <br />10 days <br />CDRMS Optional <br />Impoundment Excavation /Embankment Construction <br />20 days <br />CDRMS Inspection <br />Geosynthetic Clay Liner Installation <br />5 days <br />CDRMS Inspection <br />Leak Detection Installation Sump Construction <br />If <br />Included with above <br />Impoundment Liner Installation <br />Included with above <br />Historic Tailings Placement, Slope Ballast Installation <br />5 days <br />CDRMS Optional <br />Tailings Slurry Piping, decant Water Pumps <br />5 days <br />No Inspection <br />The Leadville Mill <br />LINER STABILIZATION, HISTORIC TAILINGS PLACEMENT. SLOPE BALLAST <br />INSTALLATION <br />M 1990 -057 <br />EXHIBIT C — MILL PLAN <br />Page 4 -18 <br />• Field seams will be tested by the air -lance method per ASTM Method D4437. <br />Where visual or audible signs occur, the area will be repaired. <br />• Destructive samples will be taken every 1,000 liner -feet of seam from the <br />material in the trench area. At least 2 samples will be taken if less than <br />2,000If of seam installed. <br />• Destructive samples will be sent to a lab for testing (peel and shear). The test <br />values will be a minimum of 80% of parent material strength. <br />• The liner contractor shall supply daily reports to the Owner. <br />• Performed by Owner, monitored by Mill Superintendent and /or Owner's <br />Engineer. <br />TAILINGS SLURRY PIPING. DECANT WATER PUMPS <br />• Performed by Owner, monitored by Mill Superintendent and /or Owner's <br />Engineer. <br />4.3.9 CONSTRUCTION SCHEDULE <br />The proposed construction schedule for the TSF follows. Reference QA /QC plan for <br />additional details on the listed activities. UMC will provide the Division 48hr notice <br />on the CORMS inspections. UMC will also provide the Division 48hr notice on the <br />optional inspections, but will proceed if the Division elects not to inspect. The <br />Division will be provided specific calendar dates following initiation of construction. <br />TABLE 4 -10: CONSTRUCTION SCHEDULE <br />Version 1.0 April 2013 <br />