Federal Reclamation Commissioner Brenda Burman has drawn a line in the sand for Arizona and other Western states: Finish a deal to take less water from the Colorado River by Thursday, or the federal government will be forced to step in and decide how to prevent reservoirs from falling to critical levels. With just four days until that deadline, many pieces have yet to fall into place for Arizona to finish its part of the agreement and join California and Nevada in endorsing the Drought Contingency Plan.