2010-03-09_REVISION - C1996083

• Permit No: C1996083
• IBM Index Class Name: REVISION
• Doc Date: 3/9/2010
• Doc Name: Review Memo
• From: Kent Gorham
• To: Joe Dudash
• Type & Sequence: PR12
• Email Name: JJD
• Email Name: KAG
• Email Name: SB1
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]

COLORADO
D I V I S I ON OF
RECLAMATION
MINING
SAFETY
Interoffice Memorandum
Bill Ritter, Jr.
Governor
James B. Martin
Executive Director
Loretta E. Pineda
To: Joe Dudash Director
From: Kent Gorham
CC: Sandy Brown
Subject: PR-12, West Mine Expansion, Bowie No. 2, C-96-083
Date: March 9, 2010
As requested in your memo dated March 3, 2010, 1 have reviewed the revised materials
for Permit Revision No. 12 (PR-12) submitted by Bowie Resources. As per your
instructions, I reviewed the materials specific to the Rules and issues associated with
general subsidence. Although it appeared that Terror Creek and the WAPA power line
were part of PR-12, based on my review, I believe that the operator adequately handled
those features in TR-65, which may not be approved at this time. My comments specific
to PR-12 are found below.
The operator has provided the information required by Rule 2.05.6(6)(b) [worst possible
consequences] for the Stevens Gulch road, Stevens Gulch, and the Pitkin Mesa
pipeline. They have also included information required by Rule 2.05.6(6)(b)(iii)(B) [a
subsidence control plan]. The features are shown on revised Map 9, Hydrologic
Monitoring Locations and adequately described as required.
The Stevens Gulch road will be subsided and the applicant states the road is protected
where severe damage would occur by limited extraction (page 2.05-137).
1. The Division does not agree that Stevens Gulch road is protected by limited
extraction areas from activities as proposed under PR-12. Permit text on page
2.05-141 accurately describes the subsidence consequences and mitigation
for the Stevens Gulch road. Please correct the permit text on page 2.05-137.
2. Please add permit text discussion at the bottom of page 2.05-142 regarding
the subsidence consequences and mitigation to any loss of surface water flow
in Stevens Gulch.
The applicant has provided adequate information regarding the Pitkin Mesa Pipeline in
compliance with Rule 2.05.6(6)(f) [subsidence control plan]. HDPE pipe will be installed
over the subsided area prior to mining and ultimately buried once the majority of
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