2010-06-24_PERMIT FILE - M2005050

• Permit No: M2005050
• IBM Index Class Name: PERMIT FILE
• Doc Date: 6/24/2010
• Doc Name: Environmental protection plan approval
• From: DRMS
• To: Rimrock Exploration and Development
• Email Name: GRM
• 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]
June 24, 2010
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JUN 28 2010
COLORADO
D I V IS I ON OF
RECLAMATION
MINING
SAFETY
Bill Ritter, Jr.
Governor
Alan Chiles Division df RzCjQ *kn, James B. Martin
Rimrock Exploration and Development MWN, and Safety Executive Director
P.O. Box 482 Loretta E. Pineda
Director
Nucla, Colorado 81424
R: J-Birds Mine, Permit No. M-2005-050, Amendment AM-01, Environmental Protection Plan Approval.
On May 13, 2010 the Division of Reclamation, Mining, and Safety (DRMS) received Rimrock Explorations responses to
review issues for the required Environmental Protection Plan (EPP) submitted as Amendment AM-01. Staff review of
the responses finds no additional issues. Therefore AM-01 for the inclusion of an EPP is approved.
The Permit File now reflects:
• Permitted acreage increase to 7.5 acres of surface disturbance at the mine portal area, monitor well and future
vent pads.
An Environmental Protection Plan as required by Rule 6.4.20. The plan has a radiometric survey of exisiting
conditions, geo-chemical analysis of waste and uranium ore rock, and an established monitor well program.
The plan notes:
a) Existing radiometric conditions note the area has a historical mining history so reclamation will be
returned to exisiting average levels or better as recorded.
b) Ore and base materials in the ore storage area will be placed back in the mine upon reclamation.
Materials will be removed until readings are back to established baseline radiometric readings or
bed rock is reached.
c) Reclamation will include topsoil and vegetative cover to prevent or retard precipitation infiltration
on dump areas.
d) All monitor wells must be constructed and operational with the first reports submitted no later
than October 1, 2010. By Rule, five (5) full quarters must be monitored and reported. Rimrock
must submit reports within 10 working days of sampling. If the dry trend continues, DRMS staff will
review an operator request to change the sampling frequency through a technical revision
submission.
e) An engineered stormwater control plan to hold a 10 year / 6 hour event and pass a 100 year / 24
hour precipitation event that prevents storm water run-on and retains storm water runoff from the
site.
No ore shall remain on site for longer than 180 days. If the mine goes into a temporary shutdown ore must be
removed or placed back in the mine prior to the shutdown date.
• The mine is noted as having intermittent status. This means there is a potential the site will be active for less
than 180 days per year. However, Rimrock must maintain all EPP requirements regardless of any other
activities.
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines