AUTHORIZATION OF APPROPRIATIONS.

“SEC. 10. AUTHORIZATION OF APPROPRIATIONS. “(a) Planning, Design, and Construction.— There are authorized to be appropriated $263,241,000 for the planning, design, and construction of the Oglala Sioux Rural Water Supply System, the Rosebud Sioux Rural Water Supply System, the Lower Brule Sioux Rural Water Supply System, the West River Rural Water Supply System, and the Lyman-Jones Rural Water Supply System described in sections 3, 3A, 3B, and 4. Such funds are authorized to be appropriated only through the end of the year 2003. The funds authorized to be appropriated by the first sentence of this section, less any amounts previously obligated for the Systems, may be increased or decreased by such amounts as may be justified by reason of ordinary fluctuations in development costs incurred after October 1, 1992, as indicated by engineering costs indices applicable for the type of construction involved. “(b) Operation and Maintenance of Oglala Sioux Rural Water Supply System, Rosebud Sioux Rural Water Supply System and Lower Brule Sioux Rural Water Supply System.— There are authorized to be appropriated such sums as may be necessary for the operation and maintenance of the Oglala Sioux Rural Water Supply System, Rosebud Sioux Rural Water Supply System and Lower Brule Sioux Rural Water Supply System. The operation and maintenance expenses associated with water deliveries to the West River and Lyman-Jones Rural Water Systems are a non-Federal responsibility and for such deliveries the Secretary shall enter into a contract with the West River and Lyman-Jones Systems for the payment of an annual operation and maintenance fee. Such fee shall be based on the incremental operation and maintenance costs for water actually delivered each year to the West River and Lyman-Jones Rural Water Systems. Such operation and maintenance payments shall be increased or decreased by such amounts as may be justified by reason of ordinary fluctuations as indicated by indices applicable to comparable regional rural water supply systems for the type of operation and maintenance involved. “(c) Waste Water Disposal Systems Feasibility Studies.— There is authorized to be appropriated such sums as may be necessary to complete the feasibility studies authorized by section 15(c).”.