2012-08-10_PERMIT FILE - C1981018A

• Permit No: C1981018A
• IBM Index Class Name: Permit File
• Doc Date: 8/10/2012
• Section_Exhibit Name: Section IV. Mine Surface Facilities Operations Plan
• Media Type: D
• Archive: Yes

• The East Portal pad was constructed without disturbing the existing stream channel since the pad
embankment slopes adjacent to the stream channel were constructed at 1.5h:1v. During the
geotechnical investigation for this area or during construction, had it been determined that a 1.5h:1v
slope would not be stable, a bin type retaining wall would have been installed to ensure the stability
of the pad embankment.
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