Klamath Power and Facilities Agreement Support Act This bill addresses projects in the Klamath River Basin in Oregon and California. The Bureau of Reclamation must support lowering the Klamath Irrigation District's net delivered power cost through certain agreements (e.g., an agreement with the Bonneville Power Administration). Further, Reclamation may enter into contracts and agreements with state and local governments, tribes, and private parties to plan, construct, operate, and maintain projects in the basin watershed to include facilities to reduce fish entrainment (i.e., the transport of fish along the flow of water, out of their normal habitat and into unnatural or harmful environments); projects that reduce or avoid impacts on aquatic resources caused by diversion of water for irrigation; and projects that restore basin watershed habitats, including tribal fishery resources held in trust. The bill also authorizes Reclamation to pay for a portion of the operation and maintenance costs of an irrigation pumping plant in Tulelake, California. It also provides for contracts to cover certain costs involved with the replacement of the C-Canal flume within the Klamath Project. Further, the bill provides statutory authorization for Reclamation to implement a 2016 agreement to take ownership and operation of the Keno Dam and operation of the Link River Dam.