2009-05-20_REVISION - C1996083 ‎(4)‎

• Permit No: C1996083
• IBM Index Class Name: REVISION
• Doc Date: 5/20/2009
• Doc Name: Cost Estimate ‎(Memo)‎
• From: Jim Stark
• To: Joe Dudash
• Type & Sequence: TR61
• Email Name: JJD
• 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 IV[ S 10 N O F
RECLAMATION
MINING
SAFETY
INTEROFFICE Bill Ritter, Jr.
Governor
MEMORANDUM Harris D. Sherman
Executive Director

TO: Joe Dudash Ronald W. Cattany
Division Director
Natural Resource Trustee
FROM: Jim
SUBJECT: Bowie No. 2 Mine's TR-61 Cost Estimate
DATE: 20 May 2009
As requested I have reviewed the information provided with the submittal of the Bowie
No. 2 Mine's Technical Revision 61- waste disposal area no. 2 slope inclination. I have
also reviewed the other revisions related to waste disposal area no. 2. The short answer is
that BRL will not need to submit any additional bond monies as a result of this revision.
Below I provide a more detailed analysis of my conclusion as it relates to TR-61 and the
other revisions that are related to it.
Waste Disposal Area #2 was originally approved on 23 March 2003 through TR-30. The
liability increase, calculated on 9 December 2002, was $317,098.00. The original
approval of this revision permitted a pile with a capacity of 2,000,000 CY of material and
3:1 slopes, pending a stability analysis (Stipulation 16). The estimated cost was for
spreading and compacting 10% of the total refuse, or 200,000 CY. It also accounted for
covering the pile with three feet of subsoil, 1 foot of topsoil and for reseeding.
Subsequently, BRL submitted TR-36, which was the stability report required by
Stipulation 36. This revision was approved on 17 June 2005 and there was no change in
bond for this revision. BRL then submitted TR-43, which was for a borrow area for
additional cover and topsoil for waste disposal area no. 2. This revision was approved on
11 September 2006 and had a liability increase of $25,487.00. TR-44 was then approved
on 20 March 2007. This revision permitted the placement of additional refuse on waste
disposal area no. 2, until it met up with waste disposal area no. 1. This revision included
a bond increase of $285,366.00. Finally, the Division approved TR-56 on 10 November
2008. This revision approved the change from 5:1 and 4:1 outslopes to the 3:1 outslopes
that we are now considering in TR-61.
The above chronology shows that the Division holds approximately $628,000.00 in bond
for waste disposal area no. 2 (these are in the dollars at the time the estimates were
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines