2011-09-07_GENERAL DOCUMENTS - C1981028

• Permit No: C1981028
• IBM Index Class Name: General Documents
• Doc Date: 9/7/2011
• Doc Name: Proposed Decision & Findings ‎(RN6)‎
• From: DRMS
• To: Coors Energy Company
• Permit Index Doc Type: Findings
• Email Name: RDZ
• Media Type: D
• Archive: No

3.1.5 Technical Revisions (TR)
Five Technical Revisions (TR) were processed since the August 30, 2001 Proposed Decision and
Findings of Compliance for the Keenesburg Strip Mine C -81 -028 Permit Renewal No. 4.
TR34: Approved January 6, 2003. Approved updated post- mining topography of long term spoil
pile.
TR35: Approved December 10, 2003. Approved change in the flyash source.
TR36: Approved July 1, 2005. Approved change in post- mining land use for two gas wells.
TR37: Approved June 15, 2006. Approved the vegetative reclamation standard from comparison
to a sand sage dominated reference area to a mathematical formula based upon growing
season precipitation.
TR38: Approved May 9, 2006. 'Approved change in post- mining land use for one additional gas
well.
TR39: Approved April 14, 2008. Approved change in post- mining land use for two additional
gas wells.
TR40: Approved June 11, 2009. Approved modification of final contours.
TR41: Approved January 18, 2011. Approved change in post- mining land use for a small part of
Area 29.
TR42: Approved June 10, 2011. Approved modification of western permit boundary.
3.1.6 Minor Revisions (MR)
Four Minor Revisions (MR) were processed since the August 30, 2001 Proposed Decision and
MR39: Approved March 10, 2004. Approved updated ownership and control information.
MR40: Approved March 19, 2004. Approved updates to contemporaneous reclamation variance.
MR41: Approved August 27, 2004. Approved midterm review responses.
MR42: Approved April 26, 2006. Approved updated weed management plan.
MR43: Approved March 20, 2009. Approved variance from contemporaneous reclamation.
MR44: Approved August 17, 2009. Approved update of PAP text.
3.1.7 Bond Releases (SL)
One bond release was approved prior to RN -04.
SL -01: Approved August 11, 1998. Approved Phase I bond release on 179 acres and Phase II
bond release on 111 acres. Released $1,787,113.00 of reclamation liability.
Two bond releases were approved between RN -04 and RN -05.
SL -02: Approved September 1, 2005. Approved Phase I bond release on 51.76 acres. Released
$287,918.00 of reclamation liability.
SL -03: Approved April 18, 2006. Approved Phase II bond release on 53.9 acres of land
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