; (ii) law (including regulations) relating to repayment costs; (iii) water rights; or (iv) treaty right of the Yakama Nation. (3) Project power for Kachess Pumping Plant (A) In general Subject to subparagraphs (B) through (D), the Administrator of the Bonneville Power Administration, pursuant to the Pacific Northwest Electric Power Planning and Conservation Act ( 16 U.S.C. 839 et seq.), shall provide to the Secretary project power to operate the Kachess Pumping Plant constructed under this section if inactive storage in the Kachess Reservoir is needed to provide drought relief for irrigation. (B) Determinations by Secretary The project power described in subparagraph (A) may be provided only if the Secretary determines that— (i) there are in effect— (I) a drought declaration issued by the State; and (II) conditions that have led to 70 percent or lower water delivery to proratable irrigation districts; and (ii) it is appropriate to provide the power under that subparagraph. (C) Period of availability The power described in subparagraph (A) shall be provided during the period— (i) beginning on the date on which the Secretary makes the determinations described in subparagraph (B); and (ii) ending on the earlier of— (I) the date that is 1 year after that date; and (II) the date on which the Secretary determines that— (aa) drought mitigation measures are still necessary in the Yakima River basin