_GENERAL DOCUMENTS - C1981017 ‎(251)‎

• Permit No: C1981017
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Name: Bid Documents ‎(IMP)‎ 1993 Correspondence
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

STATE, OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
oF-co
Department of Natural Resources �ti- -Op�
ye;�
1313 Sherman St.,Room 215 • •
Denver,CO 80203 " "
41
Phone-[phone] �/g76
FAX:[phone] Roy Romer
December 23, 1993 Governor
Michael B.Long
Mr. Bernard Freeman Division Director
Albuquerque Field Office
Office of Surface Mining
505 Marquette NW, Suite 1200
Albuquerque, NM 87102
RE: Coal Basin Mine 733 Petition (C-81-017)
You called last week requesting clarification of two items in
regard to the 733 petition related to the Coal Basin Mines. I hope
the enclosed information answers your questions.
You first requested clarification of the status of NOV C-93-096
regarding the stability of the foundation of the old refuse pile
near Dutch Creek. A modification of that NOV incorporated a
citation for failure to assure the stability of the foundation and
abutment of the refuse pile. The required abatement was to revise
the permit to address reinforcing the toe of the slope and moving
Dutch Creek away from the slope and, to implement the revised
plans.
The violation was partially abated when the Division approved MR-43
on September 27, 1993. This revision called for placement of
riprap along the outer bank of Dutch Creek in the area of concern.
The revision included permission from the Army Corps of Engineers
for placement of riprap along the stream bank. In the Corps'
approval letter, they also suggested a more permanent solution be
considered, such as relocation of the stream channel. Based upon
staff observations which have been noted in various inspection
reports and a June 28, 1993 Jim Pendleton memo, DMG will require
relocation of Dutch Creek in the final reclamation of the site.
Following placement of riprap along the Dutch Creek stream bank, as
approved in MR-43, DMG terminated NOV C-93-096 on October 8, 1993.
The stream bank reinforcement should serve to stabilize that
portion of the channel until it is relocated during final
reclamation. Potential relocation of the stream channel is a much
more complex engineering task which needs to be considered beyond
the scope of NOV abatement and the attendant time frames. As
discussed at our December 14, 1993 meeting, we will work with the
OSM to devise a final location and configuration of the stream.
I mentioned to you over the phone this morning that, based upon an
assessment conference for this NOV, the conference officer
indicated she would recommend modifying the NOV to remove the
citation for failure to stabilize the foundation of the old refuse