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7 002239 The estimated total capital cost for this prospective plan, including storage reservoir systems, incremental conveyance through the East Side Division and thence to southern California, is $975,000,000 (reconnaissance). The net annual OM&R and pump- ing costs are $18,400,000. . Under this proposal the 1,200,000 acre-feet of additional water would be stored and conveyed to southern California at an estimated average annual equivalent cost of $52 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. Associated with this development would be the East Side Divi- sion which would provide 1,500,000 acre-feet of service to that area with its resulting multiple-purpose benefits. The estimated capital cost of the proposed facilities required for East Side Division is about $600,000,000, exclusive of distribution systems. The East Side Division is proposed for authorization, construction, and operation, as an integral part of the Central Valley Project. In order to accomplish the conveyance of the additional 1,200,000 acre-feet to southern California, concurrent authorization of the facilities would be required. The reservoir storage systems proposed on the Trinity River System under this plan (Helena and Eltapom) and related diversions to Sacramento River should be authorized for construction and operation by the Bureau of Reclamation as part of the Pacific Southwest Water Plan, even though they will be integrated closely with existing and proposed features of the Federal Central Valley Project. . To other facilities--the Delta Peripheral Canal and the Kellog Unit--also should be associated with this proposed plan for authorization as part of the Central Valley Project, with finan- cial participation by the State and other agencies as appropriate. These facilities will offset, in particular, adverse effects which may occur to water supplies in the Delta area due to further water supply development in the Central Valley Basin and increased diver- sions from the DFlta. The total capital costs of these features are estimated at $125,000,000, with annual OM&R and pumping costs of $1,200,000.