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. . Montezuma Valley to McElmo Creek, while the second 1S a proposal for industrial reuse of McElmo Creek water. Current studies call for consideration of two alternatives for the concrete lining of portions of the MVI distribution system, and one alternative to concrete pipe 27 miles of the system and to concrete line 13 miles as part of stage I. Collecting and transporting saline water for powerplant use is being considered as stage II of this investigation. Of the three stage I alternatives, the concrete piping and lining alternative would be the most costly ($736,000 per mg/L) but would also realize the greatest salinity reduction (5.3 mg/L at Imperial Dam). The saline water collection, storage, and transportation com- ponent for stage II could reduce salinity by up to 6.2 mg/L at a cost of $974,000 per mg/L. Full development of the canal lining or piping alternatives, combined with on-farm measures, could preclude developing the saline water collection and transportation alternative. The overall cost-effectiveness of all measures which would be taken by the Soil Conservation Service and the Water and Power Resources Service would be considered in light of Colorado River Water Quality Improvement Program goals in selecting a recommended plan. A fish and wildlife coordination report is being prepared, and a wildlife plan to compensate for the loss of wildlife habitat because of canal and lateral improvement is being developed. Following transmittal of a favorable feasibility report. Congress could authorize the unit for construction and advance planning studies could begin. Costs and designs would be redefined, and operation and maintenance contracts would then be negotiated and signed with the MVI. Under Stage II, consideration of cos t-sharing arrangement s 'CO\. 472 II