Archive of posts filed under the Colorado River category.

Here’s an upside to the decline of Lake Mead I never thought of

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While Lake Mead’s drawdown might be viewed negatively from a perspective of maintaining full-pool water storage, it has re-exposed a vast area of new terrestrial habitat increasingly colonized by native species as invasive species abundance declines through time. That’s from “Plant colonization and soil properties on newly exposed shoreline during drawdown of Lake Mead, Mojave …

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The origins of the “practicably irrigable acreage” standard, part II

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tl;dr – It wasn’t the U.S. government “reserving” water rights on behalf of the Indians. It was the Indians keeping the rights they already had. Longer version: After I last took a stab at writing about the “practicably irrigable acreage” standard that sort of underpins U.S. Native American water rights in the west, a member of …

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Twain Whiskey-Water Quote Watch, Arizona Supreme Court edition

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In 2001, the Arizona Supreme Court at least had the wisdom to acknowledge that Mark Twain might never have said the thing about whiskey and water and drinkin’ and fightin’. But the court used it anyway: We wish it were possible to dispose of this matter by establishing a bright line standard, easily applied, in …

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California’s water policy failings on display, but is there a lesson of success here as well?

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tl;dr While Northern California flounders, Southern California’s drought planning kicks in as Met taps into its Lake Mead water savings bank Brett Walton, writing about President Obama’s visit to California’s drought-stricken Central Valley, captured that state’s water policy dilemma: “It can’t just be a matter of there’s going to be less and less water so …

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Pat Mulroy, the Hayduke of the 21st century

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Nevada journalist George Knapp has a wacky suggestion for Pat Mulroy on her way out the door at the Southern Nevada Water Authority: [I]t is still possible for Mulroy to make a grand, parting gesture by starting the ball rolling on a plan to drain Lake Powell…. This’d make an excellent final chapter for my …

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Drought, the “ridge” and the Colorado Basin

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While much of the attention on the “ridiculously resilient ridge” has, rightly, focused on its effect on California’s drought, out here in the intermountain west we’ve been suffering too. Albuquerque is on the brink of its longest precip-free winter stretch on record (these records go back to 1920). And for the Colorado Basin? What had …

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California’s drought: this is a test

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California’s remarkable, looming drought conditions are a test, and via OtPR we’re seeing some clues as to who will pass: Southern California prepared for this and has a sufficient buffer that it doesn’t need to ration this year. And how did Southern California prepare? In part by being audacious enough and rich enough, but also …

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Vegas: It’s easier to conserve water if you’ve been wasting a lot to begin with

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Back in the 1980s, a researcher named Lawrence Hamilton (gated JSTOR paper here) studied water use and conservation behavior among the residents of 431 homes in Concord, New Hampshire. Concord’s a classic case – a slow, steady population increase putting pressure on supply that’s manageable during wet times but that became a problem in 1980, …

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“running water which is salty”

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In his book Border Oasis, Evan Ward tells the story of the transborder conflict between the United States and Mexico over salinity in the Colorado River. “Unfortunately,” Ward writes, “sometimes when one region solves its salinity problems, it creates new salinity problems for people downriver.” The conflict Ward describes began in 1961 when farmers on …

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