On November 6, 1981, the Secretary of the Interior James G. Watt recommended Plan 6. In April 1984, it was approved with the exception of the Cliff Dam, which needed further study and would eventually be removed from CAP.
In November 1981, Secretary of the Interior James G. Watt proposed Plan 6. By April 1984, it had been endorsed, except for the Cliff Dam, which needed further investigation and was ultimately removed from consideration for CAP.