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In Phase 1, appropriate geomorphic, hydrologic and land use <br />studies would be performed. The studies should provide MLR <br />with data sufficient for determining if areas actually qualify <br />as AVFs. In phase 2, the essential hydrologic functions of <br />the probable AVF areas would be identified, the impact of <br />mining on the hydrologic functions would be evaluated, and re- <br />commendations would be made on how the hydrologic functions <br />could be restored. <br />I • <br />1.3 METHOD OF THE STUDY <br />Following the approval by CWI of our proposal on Phase 1 <br />of the AVF studies, the geomorphic, hydrologic and land use <br />studies have been performed. They included a review of all avail- <br />able material pertinent to the potential AVFs that is in pos- <br />session of CWI; a study of the aerial photographs of the area; <br />a review of geologic work performed by others in the area, in <br />particular the surficial geology mapping performed by W,R. Junge <br />of Colorado Geological Survey in 1978. Following the office part <br />of the study, a field mapping program was performed to delineate <br />and define the alluvium and potential AVFs in the study area. <br />As a part of the field study, test pits were excavated within <br />the alluvial areas to investigate the character of the alluvial <br />deposits. <br />Data pertinent to land use and farmir.~ for both areas of <br />interest were obtained in interviews with to landowner (Stevens <br />Gulch) and the manager of CWI's North Fork orchard. Additional <br />information was obtained in discussion with Mr. L. D. Short, <br />District Conservationist of the U.S. Soil Conversation Service <br />in Delta, Colorado. <br />- 2 - <br />~~wxo caawinsc, vac. <br />