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it would make to the Development Fund. A financial analysis of the Initial Plan, including the lower dam, indicated that repayment of the plan would be marginal with insufficient revenues to cover possible cost increases and other contingencies. Further, the greater revenues from the higher Bridge Canyon Dam would permit flexibility for the earlier staging of construction of water import facilities, which may well be found to be desirable upon additional study. For this reason, and because the lower dam would under-develop an important natural resource, decision between the alternatives clearly favored the higher dam. The Marble Canyon Project would be composed of Marble Canyon Dam and Reservoir, Powerplant, transmission facilities, and related recreation and fish and wildlife development. Paria Dam and Reservoir on the Paria River would provide 98,000 acre-feet of capacity for sediment control to protect the Marble Canyon Reservoir capacity and Glen Canyon tailwater channel from sediment encroachment. Marble Canyon Dam would be a thin-arch concrete design rising 310 feet above streambed to create a reservoir with 363,000 acre-feet of capacity and a normal water surface at elevation 3140. The installed capacity of the powerplant would be 600,000 kilowatts, and would generate an estimated 2.31 billion kilowatt-hours annually. Water Salvage and Recovery The water salvage and recovery program annually would conserve an estimated 680,000 acre-feet of water now being nonbeneficially consumed and lost along the Colorado River downstream from Hoover Dam. Senator Wash Reservoir and river channelization measures are presently authorized and will effect an estimated water savings of 360,000 acre-feet of the total indicated above. The 320,000 acre-foot balance would be conserved by two programs--Phreatophyte Eradication and Control, and Ground-Water Recovery--both of which are included among the facilities of the Pacific Southwest Water Plan. Phreatophyte Eradication and Control--This program would mechanically eradicate and control dense growths of phreatophytes now infesting about 42,000 acres of Federal and nonarable Indian land on the flood plain of the Colorado River which annually consume many thousands of acre-feet of water. Combined with and assisting 12Epson Perfection 4870 Photo, 400 dpi, 8 bit, 13,985,792 byte