_GENERAL DOCUMENTS - C1981017 ‎(310)‎

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

5TATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman St., Room 215
Denver,Colorado 80203 D I V I S�- O
Phone-[phone] MINERALS
FAX [phone] &
GEOLOGYI
RECLAMATION
MINING-SAFETY
Bill Owens
Governor
Date: April 9, 2001 Executive Director
Michael B.Long
Division Director
TO: Jim Fulton
FROM: Steve Renner
David Berry
CC: Michael Long
David Bucknam
Jim Herron
RE: Office of Surface Mining Civil Penalty Grant
The Division of Minerals and Geology is responsible for accomplishing reclamation at
the Coal Basin Mine. The operating permit has been forfeited and the reclamation bond
was revoked. The majority of the forfeited bond was expended to accomplish
reclamation of the site. Reclamation is substantially completed, however, additional
funds, in the form of Office of Surface Mining Civil Penalty Grant monies, are being
sought in order to accomplish some remaining work. Completion of the remaining work
is essential in order to minimize offsite impacts from this highly disturbed site.
One of the major reclamation components undertaken at Coal Basin was stabilization of
the Mine Bench Outslopes. These seven angle of repose slopes consist of
unconsolidated coal and overburden materials which were pushed over the existing
mountainsides during development and operation of the mines. These slopes
experience significant rates of erosion due to the nature of the overcast material, the
extremely steep slopes upon which the material rests and the high amount of annual
average precipitation. The resultant mining related sediment reports to Coal and Dutch
Creeks, the primary drainages within Coal Basin, and ultimately to the Crystal River at
Redstone, Colorado.
The Division has successfully demonstrated a method of stabilizing the Mine Bench
Outslopes using innovative revegetation techniques. The Division has attempted to
revegetate all seven of the slopes using these techniques. Two of the slopes require no
further work, while a third slope'may not require additional work. Unfortunately, it
appears that the revegetation work was less than successful at four of the slopes. We