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Centennial Project - Section 33 Pumping Test Plan 1 <br />September 2009 Powertech (USA) Inc. <br />• <br />• <br />0 <br />1.0 INTRODUCTION <br />The Centennial Project is a proposed in-situ uranium mining project located in Weld <br />County, Colorado. The Project area is located approximately 15 miles northeast of the <br />City of Fort Collins and is shown on Figure 1. The proposed project entails the <br />extraction of uranium via in-situ recovery (ISR) methods from the ore bearing sands of <br />the Fox Hills Sandstone Formation. <br />This Pumping Test Plan provides a summary of the objectives, procedures, and <br />equipment for the conduct of a regional pumping test in Section 33, T1 ON, R67W. The <br />intent in the development of this plan is to satisfy Colorado's recent statute (HB 08- <br />1161), rules and regulations of the Colorado Department of Public Health and <br />Environment (CDPHE), Colorado Department of Reclamation Mining and Safety <br />(DRMS), and the U.S. Nuclear Regulatory Commission's (NRC) NUREG 1569 (Section <br />2.7 Hydrology). The data gathered will assess the viability of applying conventional in- <br />situ mining methods and will also provide information relative to feasibility of monitoring <br />systems for the project. <br />The principal host for the uranium mineralization in the Centennial Project area is the <br />"A2 Sand" horizon within the Fox Hills Sandstone. The pumping test will entail pumping <br />from a central production well to be completed in the A2 Sand and monitoring the <br />groundwater response during pumping and recovery in the pumping well and in a <br />network of monitoring wells to be completed in the A2 Sand, and in the overlying <br />Laramie Formation, and underlying WE and B Sands within the Fox Hills Sandstone. <br />The objectives of the proposed pumping test are detailed in Section 2.0. The general <br />site characterization and local stratigraphy are described in Section 3.0. The monitoring <br />well configuration and well installation procedures are discussed in Section 4.0. Section <br />5.0 describes the protocols for conducting the test, and Section 6.0 describes the <br />procedures for the analysis and interpretation of the test results. Section 7.0 describes <br />the management and disposal of produced water. Section 8.0 describes site security <br />and monitoring that will take place throughout the test. <br />The proposed pumping test is scheduled for October 2009. The drilling and installation <br />of the production well and monitoring wells is expected to be complete in August 2009. <br />2.0 PURPOSE OF TEST <br />The objectives of the Section 33 pumping test described in this plan are to: <br />1. Collect site-specific information on geology and groundwater conditions in Section <br />33 and for the regional hydrogeological characterization; <br />2. Assess the hydrologic characteristics and their lateral continuity within the <br />mineralized production zone (i.e., A2 sand horizon); <br />Ost?r?feli