REVISION - 9/4/2009, 7:35:25 AM-JWD

• Permit No: P2008043
• IBM Index Class Name: REVISION
• Doc Date: 9/2/2009
• Doc Name: Modification Request- Form 2
• From: Powertech ‎(USA)‎ Inc.
• To: DRMS
• Type & Sequence: MD3
• Email Name: ACS
• Media Type: D
• Archive: No

POWERTECH (USA) INC.
September 2, 2009
Allen C. Sorenson
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Senior Environmental Protection Specialist .,
Division of Reclamation, Mining and Safety SEP 0 X`'
1313 Sherman Street, Room 215 Division or1lauui..
Denver, Colorado 80203 win" 'and selly
RE: Request for Modification to Notice of Intent (NOI) File No. P-2008-043
Centennial Uranium Project, Weld County, Colorado
Dear Mr. Sorenson:
Powertech (USA) Inc. (Powertech) hereby requests a modification to the "Notice of Intent (NOI) File No.
P-2008-043 to Conduct Prospecting" in connection with the Centennial Uranium Project in Weld County,
Colorado (the Project). The initial NOI was submitted to the Colorado Division of Reclamation and
Mining Safety (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 within this Modification to the P-2008-043 NOI include:
• Powertech plans to conduct an aquifer pumping test utilizing monitoring wells advanced under
the P-2008-043 Modification #1, and return the produced water back to the source aquifer.
Please refer to Appendix 1 for a detailed description of the aquifer pumping test.
During the proposed aquifer pumping test groundwater will be pumped to the surface and routed to
mobile Baker tanks for storage, which will be located adjacent to the pumping well until the aquifer
pumping test is complete. Following completion of the test, all produced groundwater will then be re-
injected into exactly the same aquifer from which the groundwater originated. Powertech is currently in
the process of seeking authorization from the Environmental Protection Agency (EPA) to conduct
groundwater injection activities through the UIC Class V Program. EPA has issued a draft permit
(Appendix 2) which is fully protective of underground sources of drinking water. Powertech will not
commence re-injection of produced groundwater until the UIC permit has been obtained, and all
provisions within that permit have been met by Powertech. During this process no water will be
allowed to discharge to the ground surface. Refer to Appendix 1 for a detailed description of the
location, design, and analysis of the groundwater aquifer pumping test.
5575 DTC Parkway, Suite 140 Telephone: [phone] Website: www.powertechuranium.com
Greenwood Village, CO 80111 USA Facsimile: 303-790-3885 Email: [e-mail]