REVISION - 3/12/2009, 2:24:46 PM-JWD

• Permit No: P2008043
• IBM Index Class Name: REVISION
• Doc Date: 3/4/2009
• Doc Name: Modification Request
• From: Powertech ‎(USA)‎ Inc.
• To: DRMS
• Type & Sequence: MD2
• Email Name: ACS
• Media Type: D
• Archive: No

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RICHARD E. BLUBAUGH
Vice President - Environmental
Health and Safety Resources

POWERTECh (USA) INC.
NON CONFIDENTIAL
>ecp.March 4, 2009

Allen C. Sorenson
Senior Environmental Protection Specialist
Division of Reclamation, Mining and Safety
1313 Sherman Street, Room 215
Denver, Colorado 80203 `
RE: r?Request for Modification to Notice of Intent (NOI) File No. P-2008-043
Centennial Uranium Project, Weld County, Colorado
Dear Mr. Sorenson:
MAR 0 4 2009
Division of Reoiama#Wt•
Mining and 58W
Powertech (USA) Inc. (Powertech) hereby requests the Division of Reclamation, Mining and Safety
(DRMS) to make a modification to the Notice of Intent (NOI) File No. P-2008-043 that allows Powertech
to conduct prospecting in connection with the Centennial Uranium Project in Weld County, Colorado (the
Project). The initial NOI was submitted to the DRMS on June 23, 2008 and the final Authorization to
Proceed was granted on August 27, 2008 by the DRMS. A modification to the initial NOI was submitted
to the DRMS on September 16, 2008 and DRMS' approval of the modified NOI was granted on October
22, 2008, with an Authorization to Proceed pending placement of the surety bond.
Approved prospecting activities covered under NOI File No. P-2008-043 includes:
• Install two (2) groundwater monitoring wells for baseline environmental data collection.
• Advance eight (8) exploration boreholes to delineate uranium resource in the project area.
Approved prospecting activities within NOI File No. P-2008-043 Modification #1 includes:
• Install fifteen (15) groundwater monitoring wells for baseline environmental data collection.
• Advance one (1) exploration borehole/core to delineate uranium resource in the project area.
Proposed prospecting activities included in this modification to the NOI include:
• Construction of an off-channel pit designed to totally contain water produced during
hydrogeological aquifer testing. Produced water will evaporate and infiltrate through the
substratum underlying the pit location, and ultimately disperse into the atmosphere and
throughout bedrock.
Powertech intends on conducting an aquifer pumping test in Section 33 of Township 10 North and Range
67 West during April, 2009, in order to determine hydrogeologic properties of sedimentary rock units that
host uranium mineralization as well as adjacent rock units. Groundwater will be pumped from the target
sand unit at a rate of 20 gallons per minute for a maximum duration of 6 days, resulting in a total water
discharge quantity of 172,800 gallons. Discharged water will be routed via a pipeline to an off-channel
infiltration pit located adjacent to the pumping well. Attachments A and B of this report displays the
tabulated and physical location characteristics of the off-channel pit.
w?
5575 DTC Parkway, Suite 140 Telephone: [phone] Website: www.powertechuranium.com
Greenwood Village, CO 80111 USA Facsimile: 303-790-3885 Email: [e-mail]