2010-10-21_GENERAL DOCUMENTS - C2009087

• Permit No: C2009087
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 10/21/2010
• Doc Name: Disturbance Boundary Requirements
• From: Sage Creek Coal Company, LLC
• To: DRMS
• Permit Index Doc Type: General Correspondence
• Email Name: JDM
• Media Type: D
• Archive: No

Peabody
Peabody Energy
Sage Creek Coal Company, LLC'
October 19, 2010
Mr. Jason Musick
Colorado Division of Reclamation Mining & Safety (DRMS)
1313 Sherman Street, Rm 215
Denver CO 80203
iCEdVED
29515 Routt County Rd. #27
Oak Creek, CO. 80467
[phone]
OCT 2 0' Z010
DK6610" ar Reclamation,
Mining and SaWY
Re: Sage Creek Coal Company - Peabody Sage Creek Mine (Permit No. C-2009-087) Disturbance
Boundary Requirements
Mr. Musick:
During the September complete inspection conducted by the Division it was noted that recently placed
disturbance boundary markers delineate the area approved for re-disturbance and not the entire area of
approved disturbance. It was noted that disturbance area markers should delineate the entire area of
approved disturbance which, based on interpretation from the Division, would include the Seneca II
surface mined polygons picked up as a part of the Sage Creek approved mining permit.
The Seneca II permit boundary is currently marked as required by Division Rule 4.02.3 for a surface
mine. These areas have obtained either phase I or phase II bond release and preparations are being made
to apply for additional phase II release and phase III release. Sage Creek is not permitted to disturb any
areas outside of the boundary approved for re-disturbance. As such, a requirement to mark individual
disturbance polygons from the reclaimed surface mine seems impractical and unnecessary. The total
distance of these lines equates to approximately 23.5 miles. Placement of these markers would be very
time consuming and expensive initially, and as an ongoing maintenance item. Sage Creek requests one of
the following in order of preference:
Mark and maintain only the area(s) approved for re-disturbance
o Sage Creek is permitted as an underground coal mine and only areas inside the
disturbance boundary are permitted to be disturbed
o The regulations state that for an underground mine the perimeter of all areas affected by
surface operations or facilities should be marked.
Maintain the markers currently placed to delineate the former Seneca II permit boundary along
with those markers already placed to delineate the area approved for re-disturbance
o This would satisfy the requirements for a surface mine if Sage Creek is partially deemed
as such