; or (2) a non-Federal storage project in accordance with subsection (d). (c) Federally owned storage projects (1) In general Subject to the requirements of this section, on request of an eligible entity, the Secretary may negotiate and enter into an agreement on behalf of the United States for the design, study, construction, expansion, upgrade, or capital repair of a federally owned storage project in an amount equal to not more than 50 percent of the total cost of the federally owned storage project. (2) Conditions for federal construction funding The construction of a federally owned storage project that is the subject of an agreement under this section shall not commence until the Secretary— (A) determines that— (i) the federally owned storage project is feasible in accordance with the Reclamation laws; (ii) the federally owned storage project provides a Federal benefit in accordance with the Reclamation laws; and (iii) in return for the Federal cost-share investment, not less than a proportionate share of the benefits of the federally owned storage project are Federal benefits, including water supplies dedicated to specific purposes, such as water quality improvements or fish and wildlife protection and restoration, including a wildlife refuge