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U0......v ~, The transfer of water from one hydrologic basin to another hydrologic basin is fairly common throughout the United States and, apparently, throughout the world. Municipalities frequently obtain their water supply from watersheds other than those in which they are located, and water for purposes such as irr iga tion or industrial processes is also often obtained from remote watersheds. What is apparently less common in the United States is the transfer of water out of its hydrologic basin in one state and in to another hydrologic basin in another sta te. This is especially true if the receiving state does not at least partially lie within the originating basin (Type B2). In his report to the National Water Commission in 1971, Ralph W. Johnson was able to say," . in this Nation, no inter basin water diversions have yet been built which artificially (by aqueduct, tunnel or flume) cross state lines and which ultimately carry water into a state which does not in any part lie in the basin of origin."1 Johnson noted that while out-of-basin interstate water transfers did exist in the United States, the diverted water is carried only into states that at some place share the basin of origin (Type BJ).2 Likewise, he noted, only one international transfer (Type C2) into the United States existed, from a shallow well in New Brunswick, Canada, via a pipeline to Milltown and Calais, Maine) The large majority of existing out-of-basin water transfers, Johnson stated, involved diversions of water from one drainage basin to another without artificially crossing state lines (Type A).4 Several major out-of-basin water diversions noted by Johnson included: 1. Colorado River Aqueduct -7-