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POWERTECh (USA) INC.r/ <br />April 14, 2009 <br />Division of Reclamation, Mining and Safety 4, <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />RECE"C <br />APR 17 [009 <br />Division or nt naWn, <br />Mining and S&* <br /> <br />NON CONFIDENTIAL <br />Attention: Allen C. Sorenson, Reclamation Specialist <br />Re: Centennial Project, Notice of Intent Modification MD-02, File No. P-200 <br />Response to March 31, 2009 Letter <br />Dear Mr. Sorenson: <br />This letter and the enclosed letter from legal counsel both respond to the March 31, 2009 <br />letter presented to Powertech (USA) Inc. during our meeting on the same date. The subject <br />of the meeting was our proposed modification (MD-02) to the Notice of Intent to Conduct <br />Prospecting (NOI) March 4, 2009. Your letter stated that the Division's initial review of MD- <br />02 indicates that it is incomplete. Although we do not believe that the information was <br />incomplete, nevertheless this letter provides responses to your inquiries and additional <br />information and sets forth an alternative undertaking that will remove any doubt about the <br />environmental aspects of our activities. <br />The eight items enumerated in the letter are addressed below in the same order as presented <br />in your letter. <br />1. Section IV, item 5 of the modification form: Powertech will comply with DRMS' <br />requirement to conduct seeding in November or April, with November being the preferred <br />option. <br />2. The dilution calculation table included in Attachment E to MD-02 will not be <br />necessary as Powertech (USA) is hereby withdrawing its proposed MD-02 for a temporary <br />storage pit. <br />3. DRMS requested considerable technical information in order to make a determination <br />that impacts to the hydrologic balance will be minimized and that groundwater standards will <br />be met. Further, DRMS requested the information in order to evaluate the potential for <br />impacts to the uppermost aquifer below the proposed water disposal pit. As stated above, <br />Powertech is withdrawing MD-02 and will proceed to handle the pumped water with Baker <br />tanks which will not require temporary water storage in the soils above the uppermost <br />5575 DTC Parkway, Suite 140 Telephone: 303-790-7528 Website: <br />Greenwood Village, CO 80111 USA Facsimile: 303-790-3885 Email: