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synthetic precipitation leaching procedure(SPLP-a sampling method that is similar to rainfal), with tailings amended at 1:5 <br /> and 1:10 parts lime to tailings respectively. The SPLP test at 1:10 still had detectable lead, while the 1:5 had no detectable <br /> lead. <br /> BIDDING/CONSTRUCTION INFORMATION <br /> Type of Bid Formal - Bid as the Yukon Tunnel Bond Forfeiture Project, PKA-14-719 <br /> CMS Number: Contractor Name&Address Construction Bond Amount <br /> 59998 Dates $0 -already used the bond in 2000 <br /> RMC Consultants Start: <br /> 12295 West 48th Avenue, Unit A 9/10/2013 <br /> Wheatridge, CO 80033 <br /> Funding Source: End: Project Cost <br /> FMS3 10/28/2013 $114,325.00+$432.85 for seed= <br /> $114,757.85 <br /> Construction Work Description <br /> Construction at the Yukon started on September 30, 2013. Work began on trash removal of collapsed buildings and <br /> scattered debris. The tailings pond was amended with 1 part limestone crusher fines from the Monarch Quarry with 5 parts <br /> tailings. The entire reclaimed tailings pond was covered with approximately 2 feet of soil from the bermed up material that <br /> comprised the pond walls. The linear ditches below the galvanized mill building were filled back in to grade with soil and <br /> intermittent plywood walls were installed to return the groundwater table to normal. Trees were transplanted across all <br /> regraded areas and a run on controls were installed above the waste pile. The galvanized mill building was sealed off and <br /> an additional locked gate was installed near Cement Creek Road. <br /> Remaining Reclamation Requirements and Estimated Cost <br /> The 1978 galvanized mill building was NOT torn down at the request of the improvements owner(the improvements on the <br /> property are separated from the surface owner). It is unclear what the legal ownership situation of the property will be in the <br /> future, but there is a possibility that the surface owner will be able to get clearance to remove the galvanized mill building. <br /> Inside the mill building there is a chemical storage locker that contains cyanide(1 barrel) and xanthate (2 barrels). These <br /> need to be removed and sent to a hazardous waste facility. The mill building is currently locked and the chemicals are <br /> inside a locked cage, but it would be easy to vandalize the structure to gain access. It is estimated that removal of the <br /> building and chemicals would cost approximately$100,000.00. <br /> 1) I <br /> IA, o--co/Z-- 3) <br /> Project Manager g Senior Project Manager <br /> 6/18/2015 <br /> Date ‘— 5 <br /> f �— l <br /> Date <br /> 2 <br />