REV02348

• Permit No: C1981028
• IBM Index Class Name: Revision
• Doc Date: 12/2/2005
• Doc Name: 2nd Adequacy Letter
• From: DMG
• To: Savage & Savage
• Type & Sequence: SL3
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
DepaNnent of Natural Resources
1313 Sherman st., Room 215 C O L O RA D O
Denver, Colorado 80203 DIVISION o r
Phone: [phone] MINERAL S

FAX: (303) 832A706
GEOLOGY
0.EC LAMATION•NININC

December 2, 2005 SAf ETY•SCIFNCE
Bill Owens
Mr. Michael Savage covemor
Savage and Savage Environmental RuSSeli George
4610 Haystack Drive executive Director
Windsor, CO 80550 Ronald W. Cattany
Division Director
Re: Keenesburg Mine, C-1981-028, SL-03 Adequacy 2 Natural Resource Trustee
Dear Mr. Savage:
Coors Energy Company submitted a request for a phase II bond release on July 5,2005. The application was deemed
complete on September 27, 2005. A bond release inspection was conducted on October 6, 2005. The Division sent an
adequacy letter on November 3, 2005 requesting additional information on two items.
On November 22, 2005, Savage and Savage Environmental provided a response to the Division's adequacy concern
No. 2. The sedimentology demonstration was submitted (via fax) to the Division on November 22, 2005. As required
by Rule 3.03.1(3)(6), the sedimentology demonstration compared the reclaimed areas to an adjacent non-mined area
using the LISLE formula. LISLE is an acceptable means for comparison. Afrer reviewing the sedimentology
demonstration, the Division has one additional question.
The statement is made on page 3 of the application that the reclaimed and adjacent undisturbed slopes are of
relatively uniform slope for the areas of concern. The reclaimed areas have an averaged slope of 1.5% and
length of 570 feet, yet the non-mined comparison area has a slope of 3.5% and a length of 742 feet. The
Osgood Sand reference area is flat.
Please submit a map showing the transects used to determine slopes of 2 degrees (3.5%) and slope lengths of
742 feet on adjacent non-mined areas.
On November 30, 2005, the Division received three copies of revised Appendix L-5, Vegetation/Re-vegetation map.
Appendix L-5 has been revised to show a 0.5-acre area removed from the Area 24 parcel as requested by the Division.
The 0.5-acre area in question has been incorporated into the Long Term Spoil Area. This revision to the map is
acceptable and resolves the Division's adequacy concern No. 1.
The application continues to be under evaluation. The Division will make a decision on the proposed release after
CEC submits the requested information. In a letter to the Division, dated August 9, 2005, you requested a meeting
with the Division regarding the reclamation liability amount eligible for this Phase II bond release. Please call me so
we may schedule a meeting that works with all of our schedules.
Cc: Dan Hernandez, DMG
Don MacDonald, Coors Energy Company, P.O. Box 467, Golden, CO 80402
C:\jh~,$'1~28\SL03\Adequacy2.doc ojficeof Cdla/a~00
Mined Land Rxlamation Active and Inactive Mines Geological Survey