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Fork of Trinity River. This reservoir also would develop an annual yield of 600,000 acre-feet which would be diverted to Helena Reservoir with subsequent diversion to Sacramento River. Power generating facilities would be incorporated with these proposed developments. Estimated capital costs of these reservoirs and associated facilities, as estimated by the State of California, are $540,000,000. Annual OM&R costs would be offset by power revenues with a net annual amount remaining of about $9,000,000. The estimated total capital cost (reconnaissance) for this prospective plan, including tunnel conveyance to Lake Havasu on Colorado River, exchange conveyance facilities, and storage reservoir systems is $1,690,000,000. The annual OM&R and pumping costs are offset by power generated, with an estimated annual revenue remaining of $7,700,000. Under this proposal, therefore, the additional 1,200,000 acre-feet of water would be stored and conveyed to southern California at an estimated annual equivalent cost of $57.35 per acre-foot, including interest at 3 percent and amortization of the facilities in 50 years. The average annual acre-foot cost given is computed by using only the incremental costs of enlargement of conveyance facilities. Appropriate allocation of costs between the East Side Division facilities and the proposed incremental enlargement under this plan may reflect some increase in this acre-foot value. 3Epson Perfection 4870 Photo, 400 dpi, 8 bit, 15,896,576 byte