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Mi)2 <br />WESTERN MINING ACTION PROJECT <br />Roger Flynn, Esq., <br />Jeffrey C. Parsons, Esq. <br />P.O. Box 349 <br />440 Main Street, Suite 2 <br />Lyons, CO 80540 <br />(303) 823-5738 <br />Fax (303) 823-5732 <br />wma __i)i?c:or? <br />via email, hardcopy to follow <br />March 20, 2009 <br />David Berry, Minerals Supervisor <br />Div. of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />(303) 866-4938 <br />david.berry@state.co.us <br />IRE: Powertech (USA) Inc. Request for Modification to Notice of Intent (NOI) File No. <br />P-2008-043; Centennial Uranium Project, Weld County, Colorado <br />Dear Mr. Bent': <br />This letter is submitted on behalf of Coloradoans Against Resource Destruction (CARD), <br />Environment Colorado, and Information Network for Responsible Mining (INFORM) to <br />express serious legal and environmental contamination concerns regarding the recent Request for <br />Modification to Notice of Intent (NOI) File No. P-2008-043 submitted March 4, 2009 by Powertech <br />(USA) Inc. (Powertech) for the Centennial Uranium Project in Weld County. As the DRMS is <br />aware, these organizations and their members, including local residents and ground water users., have <br />a long-standing interest in Powertech's proposal to conduct in situ leach uranium mining. <br />According to Powertech's Request for Modification: <br />Powertech intends on conducting an aquifer pumping test in Section 33 of Township 10 <br />North and Range 67 West during April, 2009, in order to determine hydrogeologic properties <br />of sedimentary rock units that host uranium mineralization as well as adjacent rock units. <br />Groundwater will be pumped from the target sand unit at a rate of 20 gallons per minute for a <br />maximum duration of 6 days, resulting in a total water discharge quantity of 172,800 gallons. <br />Discharged water will be routed via a pipeline to an off-channel infiltration pit located <br />adjacent to the pumping well. <br />Powertech Request for Modification at 1. As a water disposal method, Powertech asserts that <br />"[p]roduced water will evaporate and infiltrate through the substratum underlying the pit location, <br />and ultimately disperse into the atmosphere and throughout bedrock." Id.