REV95866

• Permit No: C1996083
• IBM Index Class Name: Revision
• Doc Date: 10/17/2006
• Doc Name: Adequacy Review
• From: Joe Dudash
• To: Byron Walker
• Type & Sequence: TR44
• 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
DIVISION O F
RECLAMATION
MINING
- &-
SAF ETY
DATE: October 17, 2006 Bill Owens
Governor
Russell George
Ezecutive DIlQC[Of
TO: Byron Walker
Ronald W. Cattany
/ ~ ~ ~ Division Director
FROM: (// Joe Dudash Natural Resource Trustee
RE: Bowie No. 2 Mine, Permit Number C-1996-083, Bowie Resources LLC
Technical Revision No. 44, West Expansion of Gob Pile No. 2,
Adequacy Review
I am requesting your assistance in the adequacy review of the geotechnical aspects for
Technical Revision No. 44 (TR-44) for the Bowie No. 2 Mine. In TR-44, Bowie is
expanding gob pile no. 2 to the west until it meets gob pile no. 1.
Initially, gob pile no. 2 had a design capacity of 2,000,000 cubic yards. This capacity was
reduced to 800,000 cubic yards when the design outslope of the pile was modified to be
less steep. With TR-44, the capacity will be increased to 1,075,000 cubic yards.
The new surface disturbance is 0.63 acres with this revision. Previous revisions, namely
TR-43 and MR-66, already permitted surface disturbance in this area for a borrow area.
There are some changes to the hydrology designs proposed in TR-44 as well.
TR-44 was called complete on October 13, 2006. The adequacy due date is November
13, 2006, a Monday. If I could get your adequacy memo back by Thursday, November 9,
2006, that would be great. November 10 is a holiday.
Attached is one complete copy of the TR-44 submittal. If you need any other information,
please let me know. Thanks for your assistance.
Attachments
cc: Sandy Brown (without attachments)
Dan Hernandez (without attachments)
c:/word/bowie2/tr44memo2
Office of Office of
Mined Land Reclamation Active and Inactive Mines