Updating the Hoover Dam documents, 1978 / Milton N. Nathanson.

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CHAPTER IV THE UPPER COLORADO RIVER BASIN COMPACT Another milestone in the development of the "Law of the River" was the execution of the Upper Colorado River Basin Compact on October 11, 1948, following negotiations that began in July 1946. It contained the agreement of the Upper Basin States to a division of the Colorado River waters apportioned to the Upper Basin by the Colorado River Compact of 1922 so that projects could be developed in those States. The Compact was ratified in January and February 1949 by the five signatory States and consented to by Congress in a bill approved by the President on April 6, 1949, 63 Stat. 31 (see pages 1-14, First Annual Report of the Upper Colorado River Commission, March 20, 1950). After apportioning to Arizona the consumptive use of 50,000 acre-feet of water annually, the following percentages of the total quantity available for use each year by the Upper Basin were as follows: Colorado 51.75 percent New Mexico 11.25 percent Utah 23.00 percent Wyoming 14.00 percent The major provisions of the Compact are contained in Chapter I, part G, entitled 'The Law of the River." The text of the Compact appears in Appendix 1 G.I. 97