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<br />~ <br />Ul <br />.0 <br />-.J <br /> <br />Specific suggestions for replacing habitat potentially lost <br />through canal and lateral lining and onfarm programs were <br />provided in the Grand Valley Unit area in 1985. A planning <br />aid letter was submitted on the Uncompahgre Valley area of <br />the Lower Gunnison Basin with suggested alternatives for <br />habitat replacement. <br /> <br />GS (Geoloqical Survey) <br /> <br />In addition to the 22 stations maintained strictly for the <br />analysis of salinity control program benefits, the <br />Geological Survey conducts hydrological assessments and <br />maintains a much larger hydrologic data network. Results of <br />these studies and information from the data networks form <br />the basis for a better understanding of salinity variations. <br />As an integral part of the hydrologic studies, the Water <br />Resources Division has developed a data base to support site <br />specific salinity studies as well as to evaluate data at <br />several key stations in the river system. <br /> <br />Title II USDA Activities <br /> <br />The passage of Public Law 98-569 provides a separate <br />authority for implementing a basin-wide onfarm program. <br />Funds, however, have not yet been appropriated for the <br />program. Until then, as prescribed by the provisions of <br />Title II of Public Law 93-320, USDA will continue to use <br />existing program authorities. <br /> <br />Planning <br /> <br />Within USDA, planning activities are a responsibility of the <br />SCS. Once irrigated agricultural salt source areas have <br />been identified, SCS undertakes salinity control studies and <br />investigations to determine the extent and severity of salt <br />source loadings. These studies and investigations are con- <br />ducted under the river basin authorities of Section 6 of <br />Public Law 83-566, Watershed protection and Flood Prevention <br />Act. These studies are fully coordinated with Reclamation <br />activities and serve as the basis for detailed project <br />implementation plans. <br /> <br />In 1985, only a minimal amount of planning effort was under- <br />taken due to limited funding. The two reports released in <br />1985 were the Mancos Valley, published in September 1984, <br />and the Colorado River Indian Reservation, published in May <br />1985. Table 2 presents a status report on USDA irrigation <br />salt source unit studies. <br /> <br />34 <br />