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2011-04-18_REVISION - M1981185
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2011-04-18_REVISION - M1981185
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Last modified
6/15/2021 5:58:11 PM
Creation date
4/19/2011 8:02:52 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1981185
IBM Index Class Name
REVISION
Doc Date
4/18/2011
Doc Name
Response to preliminary and second adequacy issues (CN-01) Part 1 attachments A-E
From
R2Incorporated
To
DRMS
Type & Sequence
CN1
Email Name
WHE
DB2
PSH
ACS
Media Type
D
Archive
No
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May Day and Idaho Mine Complex 112 (d) Permit Application <br />Exhibit E - Reclamation Plan <br />Development of the augmentation pond at the Idaho Operational Area will include interim reclamation of <br />the slopes which will be graded as specified in Exhibit 6.5 - Geotechnical Stability and interim revegeta- <br />tion of these slopes. <br />CDPHE Mandated Stream Restoration of Little Deadwood Gulch <br />Mine rock material within Little Deadwood Gulch at May Day No. 2 and Chief Operational Areas will be <br />removed per Colorado Department of Public Health and Environment (CDPHE) requirements as detailed <br />in Exhibit 6.5 - Geotechnical Stability. Final grading will blend with the surrounding landscape and dis- <br />turbed areas will be revegetated as defined in Section 6.4.5(2)(d) and (f) below. <br />Tailings Disposal Stemge <br />The storage of mill tailings will be undertaken in the May Day No. 1 underground workings in accor- <br />dance with the Environmental Protection Plan (Exhibit T - Designated Mining Operation), and applica- <br />ble regulations including Rule 3.1.7 <br />Reclamation Effort 2: Exploration <br />Once a decision is made to pursue exploration, exploration roads and drill pads will be developed in a <br />sequential order, with only one in development at any given time. During development of these compo- <br />nents, vegetative material removed from the exploration road corridor and drill pad areas will be moved <br />to the May Day No. 2 portal rock storage/staging area, shipped offsite to an approved landfill, burned or <br />used as mulch. Upon abandonment, all solid waste debris from the formerly active exploration drill pad <br />will be disposed of off-site. The pad site and exploration roads will then be ripped to loosen the sur- <br />face and revegetated. <br />Reclamation Effort 3: Closure and Final Reclamation <br />Wildcat will remove, recycle or dispose of liquids and wood from the site in accordance with applicable <br />waste management regulations. To the extent possible, steel sets, process equipment, generators, wire etc <br />will be salvaged. Materials not considered toxic or hazard producing will be dismantled, and cut for dis- <br />posal underground. The solid waste will be placed in the mine rock storage stope. Whole rock geo- <br />chemical characteristics are summarized in Exhibit T. <br />Portals will be appropriately backfilled with crushed rock, sloped and closed in accordance with DRMS <br />requirements. The portals will be barricaded or collapsed. Suitable mine rock will be backfilled on <br />benches such that the mine portal is buried under 5 feet or more of cover and graded with slopes equal to <br />or less than 1.5(H):1(V) (Figure E-1) in accordance with Rule 6.4.5(2)(c). <br />With the exception of the bench out slopes and the portal face (1.5H to 1V), slopes will be reclaimed to <br />2(H):1 (V) or to slopes no steeper than the existing topography where the natural slopes are estimated to <br />be 1(H) to 1(V). Where possible, slopes will be graded to approximate original contour. The post mine <br />topography and reclamation will blend in with the existing topography and vegetation. See Figure F-1 <br />May Day No. 1, Figure F-2, Figure F-3 May Day No. 2, Figure F-4 Idaho, and Figure F-5 for the Lamb <br />and Chief for the post mine reclamation plans. <br />Within the augmentation pond at the Idaho Operational Area prior to reclamation, fresh water will be dis- <br />charged to an adjacent drainage channel or spray irrigated on the ground in accordance with CDPHE dis- <br />charge permit requirements. Upon closure, the augmentation ponds will be backfilled, and graded to <br />May Day Idaho Mine Complex 112(d) Permit Application <br />Revised: April 14, 2011
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