PUBLIC LAWS-CH. 340 -MAY 25 , 1948 Reduction of reim- bursable costs. Reimbursable costs of irrigation system. Annual install- ments. Reimbursable costs of power system. Annual install- ments. Sale of electric en- ergy. from the net revenues heretofore accumulated from the power system. (d) The remainder of the net revenues heretofore accumulated from the power system shall be applied to reduce the reimbursable costs heretofore incurred for the construction of the power system, and the reimbursable costs heretofore incurred for the construction of the irrigation system (exclusive of the deferred obligation for the excess costs of the Camas division) as allocated among the several divisions pursuant to subsection (a) of this section, in proportion to the respective amounts of each of the foregoing categories of costs. (e) The reimbursable costs heretofore incurred for the construc- tion of the irrigation system of each division of the project and not repaid through the credits provided for in subsections (c) and (d) of this subsection shall be scheduled for repayment in annual install- ments of approximately equal amount, in a manner which will pro- vide for liquidation of such costs over a period of fifty years from January 1, 1950. The reimbursable costs hereafter incurred for the construction of the irrigation system shall be added to the schedule of repayments established pursuant to this subsection by increasing the amount or the number, or both, of the annual installments matur- ing after the incurrence of such costs, in a manner which will provide for their liquidation within a period not exceeding the useful life of the works involved, or not exceeding fifty years from the time when the additional costs are incurred, whichever period is the lesser. Each annual installment shall be distributed over all irrigable lands within the division on an equal per acre basis, and the costs so charged against any parcel of lands within the division shall constitute a first lien thereon under the Act of May 10, 1926 (44 Stat. 453, 464-466). Upon the maturity or prepayment of any annual installment, the amount of the installment shall be reduced by deducting any sums included therein which are chargeable to lands on which the collection of con- struction costs is then deferred under the Act of July 1, 1932 (47 Stat. 564; 25 U. S . C., sec. 386a), or which are chargeable to other lands and have been already repaid to the United States. (f) The reimbursable costs heretofore incurred for the construction of the power system and not repaid through the credits provided for in subsections (c) and (d) of this subsection or through other credits from the revenues of the power system, shall be scheduled for repay- ment in annual installments of approximately equal amount, in a manner which will provide for liquidation of such costs over a period not exceeding the remaining useful life of the power system as a whole, or not exceeding fifty years from January 1, 1950, whichever period is the lesser. The reimbursable costs hereafter incurred for the con- struction of the power system shall be added to the schedule of repay- ments established pursuant to this subsection by increasing the amount or the number, or both, of the annual installments maturing after the incurrence of such costs, in a manner which will provide for their liquidation within a period not exceeding the useful life of the works involved, or not exceeding fifty years from the time when the addi- tional costs are incurred, whichever period is the lesser. Each annual installment shall be repaid to the United States solely out of the revenues from the power system. (g) Electric energy available for sale through the power system shall be sold at the lowest rates which, in the judgment of the Secretary of the Interior, will produce net revenues sufficient to liquidate the annual installments of the power system construction costs established pursuant to subsection (f) of this section, and (for the purpose of reducing the irrigation system construction costs chargeable against the lands embraced within the project and of insuring the carrying out of the intent and purpose of legislation and repayment contracts 270 [62 STAT.
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