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Phase II will include a more intensive review of the literature, <br />additional well pumping tests if necessary, quarterly water-quality <br />sampling from both ground water and surface water, and data <br />analysis. The analysis of the ground-water data will define <br />aquifer location(s), hydraulic properties, and water chemistry. <br />The surface-water data will show if the streams are gaining or <br />losing, the surface-water chemistry, and low flow and <br />high-flow characteristics. <br />REPORTS: <br />A Water-Resources Investigations Report will be published upon <br />completion of the study. The report will be available for review <br />in 1986 and will be revised and published in 1987. <br />G. BENEFITS: <br />The hydrologic information will show the location of the aquifers, <br />the lateral extent of the aquifers, and the water chemistry of the <br />aquifers. Surface-water quantity and quality wil] also be defined <br />based on one year of data. <br />The BLI4 can use the information from the report to write Tract <br />Profile Reports and Environmental Impact Statements. The <br />information would help the BLM to determine if the area is suitable <br />for mining and if the tract should be a high or low priority. Also, <br />identification of the hydrogeology would be very useful for <br />answering potential questions from both mine operators and <br />environmental groups. The baseline characterization of the <br />hydrology of the Hart Syncline can be used to help determine <br />mine pit dewatering requirements, mine pit inflow, aquifer <br />water chemistry, potential interaction with alluvial aquifers and <br />streams, and other hydrogeologic interactions. <br />PERSONNEL REQUIREMENTS AND AVAILABILITY: <br />Project Chief: R. S. Williams, GS-12 <br />Project Assistant: W. P. Van Liew, GS-9 <br />All personnel are currently available in the Colorado District. <br />