PUBLIC LAW 104-300 —OCT. 11, 1996 110 STAT. 3647 of the District in Valley County, northeastern Montana (as described in the feasibility study). (c) AMOUNT OF FEDERAL CONTRIBUTION.— (1) IN GENERAL.— Subject to paragraph (3), under the cooperative agreement, the Secretary shall pay the Federal share of— (A) costs associated with the planning, design, and construction of the water supply system (as identified in the feasibility study); and (B) such sums as are necessary to defray increases in the budget. (2) FEDERAL SHARE. —The Federal share referred to in paragraph (1) shall be 75 percent and shall not be reimbursable. (3) TOTAL. —The amount of Federal funds made available under the cooperative agreement shall not exceed the amount of funds authorized to be appropriated under section 4. (4) LIMITATIONS. —Not more than 5 percent of the amount of Federal funds made available to the Secretary under section 4 may be used by the Secretary for activities associated with— (A) compliance with the National Environmental Policy Act of 1969 (42 U.S.C. 4321 et seq.); and (B) oversight of the planning, design, and construction by the District of the water supply system. SEC. 4. AUTHORIZATION OF APPROPRIATIONS. There are authorized to be appropriated to carry out this Act $5,800,000. This authorization shall terminate after a period of Termination 5 complete fiscal years after the date of enactment of this Act date, unless the Congress has appropriated funds for the construction purposes of this Act. This authorization shall be extended 1 additional year if the Secretary has requested such appropriation. The funds authorized to be appropriated may be increased or decreased by such amounts as are justified by reason of ordinary fluctuations in development costs incurred after October 1, 1994, as indicated by engineering cost indices applicable to the type of construction project authorized under this Act. All costs which exceed the amounts authorized by this Act, including costs associated with the ongoing energy needs, operation, and maintenance of this project shall remain the responsibility of the District.
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