The Refuge Water Supply Program (RWSP) is administered by the United States Department of the Interior jointly by the Bureau of Reclamation and Fish and Wildlife Service and tasked with acquiring a portion and delivering a total of 555,515 acre feet (AF) of water annually to 19 specific protected wetland areas in the Central Valley of California as mandated with the passing of the Central Valley Project Improvement Act signed on October 30, 1992, by President George H. W. Bush. [1]