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Task I. Development of Experimental Plan <br /> Task II. Ash and Mine Water Acquisition and Characterization Studies <br /> Task III. Grout Mix Design Testing <br /> Task IV. Laboratory-Scale Mine Emulation Tests <br /> Task V. Project Management and Reporting <br /> Task I. Development of Experimental Plan <br /> This task will develop an experimental plan for the project. To date, discussions have <br /> been held with a number of regulatory entities with varying oversight for such applications of ash <br /> in Colorado. These include: <br /> • Colorado Department of Public Health and Environment (CDPHE) <br /> • Abandoned Mine Lands Program <br /> • Colorado State Engineer <br /> • U. S. EPA. <br /> Agency representatives have made comments and suggestions as to the technical and <br /> environmental assessments that need to be conducted in order to receive permits for these <br /> applications. This information will be compiled and augmented with the suggestions from others <br /> with regulatory and technical insight. In addition, the results of the preliminary ongoing testing <br /> being sponsored by Public Service of Colorado will be assessed and included with the regulatory <br /> suggestions. <br /> Based on the results of these investigations, an experimental plan will be developed for the <br /> project and the experimental plan made available to the regulatory authorities for review and <br /> comment. Their comments will be incorporated into the details of the experimental plans. <br /> Task II. Ash and Mine Water Acquisition and Characterization Studies <br /> Ashes are to be shipped from PSCo facilities to WRI, where they will be homogenized and <br /> made available for testing at WRI and the Engineering Research Center at Colorado State <br /> University. The following four ash materials will be used in the project: <br /> • Sodium injection ash <br /> • Class F ash <br /> • Dry flue gas desulfurization (DFGD) ash <br /> • Bottom ash. <br /> 3 <br />