Document: Pacific Southwest Water Plan- Proposed Draft Letter of Transmittal- Secretary to the President, December 1963, page 10after it became revenue-producing. At the end of the payout period there would have accrued to the Development Fund $675,000,000 of unassigned revenues. The ratio of estimated benefits to costs is 2.9 to 1.0. The costs of that portion of the Initial Plan proposed for immediate authorization are estimated to be $1,704,000,000 of which $1,574,000,000, or 92 percent, would be fully reimbursable. The costs of each feature would be repaid within 50 years after it became revenue-producing. At the end of the payout period there would have accrued to the Development Fund $900,000,000 of unassigned revenues. The ratio of...