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year. Construction costs have been estimated at $10 million. The cost effectiveness of this unit is unusually favorable ($35 per ton) due to the good condition of the drop and cross drainage structures. ses is con- ducting preliminary investigations to explore the potential for a USDA on-farm program in the San Juan River Basin. 7. DOLORES/McELMO eREEK UNIT The McElmo Creek Unit of the Salinity Control Program was author- ized as a new project feature of the Dolores Project, CRSP, by Public Law 98 - 5 69 in 1984. The supplement to the environmental statement adding salinity control as a project feature of the Dolores Project was completed, approved and filed in March of 1989. Salinity control features include Reaches 1 and 2 of the Towaoc Canal and the Rocky Ford, Lone Pine, and Upper Hermana Laterals. Construction on Reaches 1 and 2 will continue in Fiscal Year 1991. USDA allocate first year cost-share funds for salinity control contracts to this project in 1990 and started implementation. During the fiscal year, nine contracts were signed with individuals, and installation of salinity practices began. In this first year of implementation, six sprinkler systems and four miles of underground and gated pipe were installed. The annual salt-load reduction achieved is 540 tons. Coordination of the on-farm salinity control actions with the Bureau of Reclamation canal and lateral construction program continues. 8. GLENWOOD-DOTSERO SPRINGS UNIT Reclamation is pursuing the evaluation of a potential industrial use alternative for this unit. The potential development would include the use of waste heat from a natural gas turbine power plant to desalinate a portion of the saline springs water in Glenwood Springs, Colorado. The byproduct salt could be marketed by the developer to replace salt that is imported into the Colorado River Basin. The desalinated water would either be returned to the eolorado River or marketed to some local users. Reclamation has completed a competitively negotiated cooperative agreement for the planning, construction and operation of the facility with the developer. The process would prevent approximately 65,000 tons of salt per year from entering the river system. The cooperative agreement was signed in the fall of 1989. In Fiscal Year 1991, Reclamation and the developer will continue to cooperate to prepare an environmental assessment and the necessary documents to seek authorization of the project from Congress. 70