Contentious dam, reservoir in Sanpete County OK'd Sanpete County Commissioner Claudia Jarrett hailed the decision, saying it'll allow the county to receive its fair share of water. The project will allow for the irrigation of 15,420 acres of farmland, the Deseret News reported, and will increase farm income in Sanpete County by 11 percent. In announcing the decision, the Provo Area Office of the Bureau of Reclamation said it would allow 304 acres of its land to be used for the dam, but would not give any loan money for it.