; and (B) the Musselshell-Judith Rural Water System. 4. Dry-Redwater Regional Water Authority System and Musselshell-Judith Rural Water System (a) Authorization The Secretary may carry out— (1) the project entitled the Dry-Redwater Regional Water Authority System in a manner that is substantially in accordance with the feasibility study entitled Dry-Redwater Regional Water System Feasibility Study (including revisions of the study), which received funding from the Bureau of Reclamation on September 1, 2010; and (2) the project entitled the Musselshell-Judith Rural Water System in a manner that is substantially in accordance with the feasibility report entitled Musselshell-Judith Rural Water System Feasibility Report (including any and all revisions of the report). (b) Cooperative agreement The Secretary shall enter into a cooperative agreement with the Authority to provide Federal assistance for the planning, design, and construction of the Water Systems. (c) Cost-Sharing Requirement (1) Federal share (A) In general The Federal share of the costs relating to the planning, design, and construction of the Water Systems shall not exceed— (i) in the case of the Dry-Redwater Regional Water Authority System— (I) 75 percent of the total cost of the Dry-Redwater Regional Water Authority System; or (II) such other lesser amount as may be determined by the Secretary, acting through the Commissioner of Reclamation, in a feasibility report; or (ii) in the case of the Musselshell-Judith Rural Water System, 75 percent of the total cost of the Musselshell-Judith Rural Water System. (B) Limitation Amounts made available under subparagraph (A) shall not be returnable or reimbursable under the reclamation laws. (2) Use of Federal funds (A) General uses Subject to subparagraphs (B) and (C), the Water Systems may use Federal funds made available to carry out this section for— (i) facilities relating to— (I) water pumping; (II) water treatment; and (III) water storage; (ii) transmission pipelines; (iii) pumping stations