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w ~ By reducing over irrigation and excessive deep percolation, ~ it is estimated average annual salt load reductions to the --J Colorado River system will be 19,200 tons. Colorado River Basin Salinity Control Forum Work Group members made a tour of the Moapa Valley during March 1985. Virqin Valley NV (USDA) The Virgin valley report was published in September 1981. The area consists of about 5,000 acres of irrigated land owned by about 50 individuals. Four irrigation companies or districts would also be involved with improvements of about 6 miles of off-farm canal and lateral improvement. Deep percolation reduction is estimated to be 19,000 acre- feet per year and salt load reductions are estimated to be 37,200 tons per year. While the Virgin Valley is independent of any Reclamation salinity control project, the downstream impacts on Reclamation's Lower Virgin River Unit are to be evaluated by Reclamation and SCS collectively. Forum Work Group members also made an orientation tour of the Virgin Valley during March 1985. Mancos Valley CO (USDA) The Mancos Valley unit is a 9,200 acre irrigated area along the Mancos River, a tributary to the San Juan River. The report, Irriqation Improvements for Mancos Valley, was completed in 1985. The recommended implementation plan includes 3,200 acres of sprinkler systems and other water management/salinity control treatments on about 5,500 total acres. About 17 miles of canal and lateral lining would combine many old earthen laterals. Total salt load reduc- tions are estimated to be 8,800 tons per year with about 7,700 tons resulting from lateral improvements. About 57 landowners and 15 lateral companies or groups of landowners would be involved. A tour of the Mancos Valley was con- ducted during the Colorado River Basin Interagency Committee meeting in June 1985. Continuing Evaluations S'inbad Valley CO (BLM) The Sinbad valley Salinity Report was completed in April 1983. The report identifies seven alternatives for this sali- nity control unit in western Colorado. Public Law 98-569 directed the Secretary of the Interior to undertake advance 24