Policymakers, politicians and the media have been talking about the need for better water policy in the desert southwest of the United States for decades. As the Colorado River, a major source of water for much of that area, continues to shrink, policymakers are having a hard time keeping up with nature. A new 10-year plan contemplates cutting water supplies for Arizona, Nevada and California by up to 40 percent depending on availability. Not surprisingly, these states don't like the plan that the Trump Administration said it will impose on the states since they have been unable to come up with an agreement.
The century-old Colorado River Compact governed water allocations to the upper and lower basins of the river. But the compact overestimated water flows and the states along the Colorado have been dealing with that error ever since. Now, a drought that has spanned more than two decades has made matters worse.
I can remember flying into Las Vegas in 2009, looking out my window and seeing the so-called "bathtub ring" around Lake Mead, the lake created by Hoover Dam. The top of the ring indicated where the water level had previously been before the ongoing multi-year drought noticeably lowered the lake level. Las Vegas was at the time involved in what was essentially an emergency project to build a water intake at a deeper level for fear that the surface of Lake Mead would fall below the current intake and deprive the city of 40 percent of its water. The water authority succeeded in building the intake, but, of course, that didn't do anything to increase water supplies from the Colorado River.