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<br />U.S. Bureau of Reclamation <br />January 12, 1978 <br />Page 2 <br /> <br />reference the 70 pounds of documents in detail. <br /> <br />1. Aerial photographs of the reservoir and dam site. <br /> <br />. <br /> <br />2. Maps of the reservoir and USGS 7~ min. map of the site. <br /> <br />3. Locations of proposed clay core borrow pits on the <br />north side of the river, shell materials on the south <br />side, and pervious materials in the river. <br /> <br />4. Ground water studies <br /> <br />a. Pump-out and pump-in tests made in late 1948 about <br />one mile southwest of the river. <br /> <br />b. Data on wells in the vicinity and the region. <br /> <br />c. Studies of the effect of the reservoir on ground <br />water levels, including the effects of upstream <br />blanketing. <br /> <br />d. Studies by the USGS in 1977 on uplift and soil <br />stability adjacent to the dam in the vicinity of <br />-the end of a proposed slurry trench. <br /> <br />5. Logs of borings in proposed borrow pits, areas of <br />pumping tests and dam foundation. <br /> <br />6. Data on surface water hydrology. <br /> <br />7. Laboratory test data on foundation and proposed embank- <br />ment materials. <br /> <br />8. Reports of studies on alternate sites. <br /> <br />9. Design of the proposed dam for the purpose of feasibility, <br />including relevent analyses of seepage and embankment <br />slope stability. <br /> <br />10. Environmental Impact Statement. <br /> <br />In my opinion the quantity and quality of the data are <br />commensurate with the level of information required for pre- <br />liminary design to determine the technical feasibility of the <br />project. <br /> <br />2 <br />