Document: Financing the Central Arizona Project, May 1967? page 5What the above summary demonstrates is that the irrigation water does not pay its own costs, but is subsidized principally from either of two sources: (1) A relatively high charge for M&I water; or (2) an ad valorem tax. In most but not all water projects in the West much of the subsidy for irrigation is from surplus power revenues of one or more federal dams. There are, however, some federal water projects which have been authorized and built without subsidy from power revenues, for example, Weber Basin Project, Utah; Gila Project, Arizona; and the All-American Canal System--California. The Weber Basin Project, like the Central Arizona Project, is characterized by a substa...