2009-03-04_REVISION - C1982056 ‎(2)‎

• Permit No: C1982056
• IBM Index Class Name: REVISION
• Doc Date: 3/4/2009
• Doc Name: Adequacy Concerns
• From: DRMS
• To: Twentymile Coal Company
• Type & Sequence: MR236
• Email Name: JHB
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203 COLOR-ADO
F
Phone: [phone] n t v t s t o N oN
RECLAMATION
FAX: [phone] M I N I N G
- 8L-
March 4, 2009 SAFETY

Mr. Jerry Nettleton
Environmental Supervisor

Twentymile Coal Company Bill Ritter, Ir.
Governor

Harris D. Sherman
Executive Director
29515 Routt County Road 27 Ronald W. Cattany
Oak Creek, CO 80467 Division Director
Natural Resource Trustee
Re: Foidel Creek Mine, Permit No. C1982-056, MR236 adequacy concerns
Dear Mr. Nettleton:
The Division has reviewed Twentymile Coal Company's (TCC) application for a minor revision, MR236.
This revision proposes to install a meteorological station to the south of Pit 1, and includes Nitrogen
injection systems as required by MSHA at the 6MN and 18RT Mine Atmosphere Control (MAC)
boreholes.
The Division identified a few concerns with the submitted application as follows:
In Table 49A "volume to be added" column, TCC shows 293 cy topsoil to be added to SF-3. But
this additional topsoil has not been added into the total of 4,910 cy. This column should add up to
6,202 cy. The total stockpiled volume for the Total Volume column for the first table (facilities
area topsoil stockpiles) should equal 556,615 cubic yards. Please make the corrections to Table
49A.
2. The reclamation cost estimate included with MR236 shows 484 cubic yards of topsoil to be
replaced on the regarded met. station pad and road. Table 49A shows only 293 cubic yards of
topsoil to be added to the topsoil stockpile SF-3. Please explain this 191 cubic yard difference.
3. The Division is have difficulty blending revised (MR236) pages (revised date 2/23/2009) with
approved pages in the PAP. Pages 2.05-45.5f, 2.05-45.5g, 2.05-45.7 and 2.05-45.8 don't blend
with approved pages, or previously approved text has been lost. The Division is including copies
of the approved pages with this letter. We recognize that this has been an ongoing problem but
have identified these specific concerns with the MR236 revised pages. We also recognize that the
specific page numbers are not as critical as assuring that all text is retained. Specific pages are
referenced to assure that Division and TCC are looking at the same information.
A. Revised page 2.05-45.6f has eliminated the text approved during MR08-227 (rev. 1/8/08)
regarding the Temporary Shaft Heater Installation. However, this revised page has
reinstated text approved in TR61 that discusses the piping to the 6MN million gallon tank
and 6MN Water Storage Reservoir. Please assure that new revised pages do not eliminate
previously approved text and blend with preceding and following approved pages.
Office of Office of
Mined Land Reclamation Denver • Grand lunction • Durango Active and Inactive Mines