_GENERAL DOCUMENTS - C1981017 ‎(261)‎

• Permit No: C1981017
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Name: Bid Documents ‎(IMP)‎ Permit Renewal RN 1
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

°F ` 5TATE OF COLORADO
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Roy Romer, Governor
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DEPARTMENT OF NATURAL RESOURCES
MINED LAND RECLAMATION DIVISION r;�, � 1
FRED R. BANTA, Director
July 22, 1988
Ms. Diane Delaney
Mid-Continent Resources, Inc.
201 Centennial St. , Suite 406
Glenwood Springs, Colorado 81601
RE: Coal Basin Mines, C-017-81 , Permit Renewal No. 1
Dear Ms. Delaney:
Jim Pendleton and I have made a review of the haul road certification
submitted for the Coal Basin Mines. In order to determine whether this
certification is acceptable, a full review of previous work submitted for the
satisfaction of Stipulations No. 6 and 8 was undertaken. These stipulations
were essentially identical , with No. 6 directed at the mine portal areas and
No. 8 directed at the haul roads. Deficiencies noted during this more broad
review are detailed below.
Stipulation No. 6 requires, ultimately, a geotechnical and stability analysis
of the proposed backfilled configuration for the five portal benches. Five
test sections were monitored to determine the stability of reclaimed profiles
on unstable areas. However, we can find no place in our records where these
test sections were specifically applied to the reclamation profiles for the
portal bench areas. It should also be noted that on page 32 of Chapter V of
the Permit Renewal Application, the reader is referred to Appendix V-c-1 for
the reclamation profiles of the portal benches. Appendix V-E-1 contains
documentation of the variance from AOC and not the cross-sections used for
reclamation of the portal areas. To summarize, in order to finalize the
reclamation plan for the portal areas, Mid-Continent must:
1 . clarify where the reclamation profiles for the portal benches are
located within the permit renewal application,
2. describe how the test sections will be utilized in the final
reclamation profiles for the portal areas, and
3. demonstrate that the post-mining configuration for the portal bench
area will meet a minimum stability factor of 1 .3.
215 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel.[phone]