2009-11-06_REVISION - C1981019 ‎(2)‎

• Permit No: C1981019
• IBM Index Class Name: REVISION
• Doc Date: 11/6/2009
• Doc Name: Incompleteness Letter
• From: DRMS
• To: Colowyo Coal Company
• Type & Sequence: TR83
• Email Name: JRS
• Media Type: D
• Archive: No

STATE OF COL O[LSDO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
COLORADO
D I V I S I O N O F
RECLAMATION
MINING
SAFETY
6 November 2009 Bill Ritter, Jr.
Governor
Ms. Jennifer Sekulski-Barton Harris D. Sherman
Executive Director
Colowyo Coal Company, LP
Ronald W. Cattany
5731 State Highway 13 Division Director
Meeker, CO 81641 Natural Resource Trustee
Re: Colowyo Mine C-1981-019
Incompleteness Letter - Technical Revision 83
Dear Ms. Sekulski-Barton:
The Colorado Division of Reclamation, Mining and Safety (Division) has received the
Colowyo Coal Company, LP's (Colowyo) 23 October 2009 submittal of Technical
Revision 83 - North Taylor PMT Change and Ditch Realignment. The revision was
received by the Division on 26 October 2009. The Division's initial review indicates that
all items required by Rule 2.08.5(4) have not been submitted. Based on this review, the
Technical Revision 83 (TR-83) application is deemed incomplete for the purposes of
filing as of 5 November 2009. The Division will review the revision again for
completeness upon receipt of the required materials.
General Background
Technical Revision-83 proposes the redesign and realignment of the permanent, post-
mining drainage channels in the West Pit, East Taylor watershed. In addition to these
channel design and location changes, minor changes to the post-mining topography in the
North Taylor area of the watershed are proposed. The submittal of Technical Revision
83 included a cover letter, a proposed public notice, a change sheet (for tracking permit
page and map changes) and revised maps 19, 19B, 20, 33A and 41. The following is a
list of the proposed changes contained in Technical Revision 83, based on the
information provided.
East Taylor Ditch - Colowyo is proposing to shorten the East Taylor Ditch by
approximately 750 feet (from its currently approved length of approximately 15,025 feet
to a proposed length of approximately 14,275 feet). The newly proposed East Taylor
Ditch will begin in the same location but it will intercept the Taylor Tributary Ditch at
approximately station 10+00 (as opposed to its currently approved intercept point at
approximately station 3+00). Colowyo is also proposing to change the configuration of
the lower portion of the East Taylor Ditch from approximately station 50+00 to station
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