2008-08-14_REVISION - C1982056

• Permit No: C1982056
• IBM Index Class Name: REVISION
• Doc Date: 8/14/2008
• Doc Name: Adequacy Concerns
• From: DRMS
• To: Jerry Nettleton
• Type & Sequence: TR65
• 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 C O L O R A D O
Denver, Colorado 80203 D IV IS I ON OF
Phone: [phone] RECLAMATION
FAX: [phone] MINING

SAFETY
Bill Ritter, Jr.
Governor
August 14, 2008
Harris D. Sherman
Executive Director
Mr. Jerry Nettleton Ronald W. Cattany
Environmental Manager Division Director
29515 Routt County Road #27 Natural Resource Trustee
Oak Creek, CO 80467
Re: Foidel Creek Mine, C1982-056, TR65 adequacy concerns
Dear Mr. Nettleton:
The Division has reviewed TCC's application for a technical revision, TR65, which proposes to extend
haul road B-2 and construct additional support structures to allow for improved efficiency at the Stoker
Truck Load Out. The load out is located north of the existing wash plant. The proposed extension of the
load out to the north will allow traffic pattern to flow better as the trucks are loading and minimize the
time trucks are required to maneuver under the stoker loading chute.
TR65 proposes to add a Coal Feed Conveyor, Coal transfer Conveyor, a twenty-foot conveyor extension,
three support Bents, concrete pad, and a support truss with walkway. Haul Road B-2 will have an
additional 0.1 acres expanded to the north. This expansion will be outside of the Pond E emergency
spillway path. The expansion will be in an area previously disturbed, regraded and reseeded by previous
activity at the mine. This area will also be within the 100 foot buffer zone for Foidel Creek. An
exemption for disturbance and activity within the buffer zone has previously been granted to Twentymile
Coal Company. Activity associated with this revision will be well south of the Foidel Creek channel and
banks. A well vegetated grass filter will be maintained and TCC proposes to also use silt fence or straw
wattles, to control sediment from the proposed disturbance.
The Division has identified two items that need response from TCC for this revision:
The Division was unable to locate a sedimentology demonstration for the area immediately
west of the Pond E emergency spillway and north of the stoker truck load out. Expansion
of the Stoker truck load out will require this area to be treated with alternate sediment
control (ASC) measures. Please direct the Division to where a SAE demonstration for this
area that does not drain to a sediment pond is located in the permit, or provide a
demonstration with a description of the ASC measures that will be implemented.
2. Page 2.05-102 was last updated with MR07-216 (May 28, 2007). Page 2.05-102 submitted
with TR65 (revised July 7, 2008) lost two paragraphs from the top of the page. The
paragraph beginning with "liability period. TCC will maintain the road for monitoring
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Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines