A major Colorado River water user has proposed an interim plan for Arizona as the state faces looming a looming deadline to manage expected shortages. The Central Arizona Project board said its proposal could jumpstart talks after previous ones failed to gain consensus among water users. The agency wants to draw up to 400,000 acre-feet of water it stored in Lake Mead and 50,000 acre-feet in Lake Pleasant, and implement a $60 million conservation program to lessen the burden of shortages on mainly farmers and developers. Another program would help improve groundwater systems but doesn’t have a price tag.