2011-07-21_PERMIT FILE - C1982056 ‎(2)‎

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 7/21/2011
• Doc Name: Overland Conveyor ‎(MR11-254)‎ Design Information
• Section_Exhibit Name: Exhibit 49X Overland Conveyor ‎(MR11-254)‎ Design Information
• Media Type: M
• Archive: No

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Geoeochnicw I Eaviramr4fttal ar4owmas • Hatcriah T'=dn3
Subject: Proposal/cost estimate for
Professional Services, Geotechnical
Investigation — Proposed Sage Creek
Conveyor Corridor, Routt County,
Colorado.
Dear Mr. Kasper,
April 15, 2011
Sage Creek Coat Company
c/o ThyssenKrupp Robins Inc.
7730 E Beileview Ave., #404
Greenwood Village, CO 80111
Attn: Steve Kasper
• NWCC, Inc. (NWCC) is pleased to submit this proposal and cost estimate to conduct a
Geotechnical Investigation for the proposed Sage Creek Conveyor Corridor to be constructed
from the new Sage Creek Mine facility to the existing Twentymile Coal Mine facility in Routt
County, Colorado.
It is our understanding that a 25 foot wide corridor will be constructed from the new Sage Creek
Mine facilities to the existing Twentymile Coal Dine facilities (wash plant and rail loading ). The
25 foot wide corridor will have a service road on one side and the new conveyor on the other. It
is anticipated the new corridor will be approximately g miles long and have numerous road,
creek, railroad and animal crossings. It is also our understanding that several transfer towers will
be constructed along the corridor. Based on our understanding of the proposed construction, our
review of the preliminary profile and layout plans provided by ThyssenKrupp Robins, and our
experience with other projects in this area, we propose the following:
Scope of Work:
1) Advance thirty -five (35) to forty (40) test holes along the new conveyor corridor situated
between the two mines. Test holes will be located at the new transfer towers, road
crossings, creek crossing, railroad crossing and animal crossings, as well as at a spacing
of approximately 1,500 feet along the corridor. The depth of the test holes will be
determined in the field as the drilling progresses and as the subsoil profiles become
evident. Based on experience, we have assumed that the test holes will be drilled to
depths ranging from 10 to 30 feet beneath the existing ground surface; however, the final
• (970) 879 -7888 a Fax [phone]
2580 Copper Ridge Drive - Steamboat Springs, CO 80497