@CAPArizona’s method for maximizing their #COriver rights draws letter from the Upper #ColoradoRiver Commission

The Central Arizona Aqueduct delivers water from the Colorado River to underground aquifers in southern Arizona. UT researcher Bridget Scanlon recommends more water storage projects like the aqueduct to help protect against variability in the river’s water supply. U.S. Bureau of Reclamation.

Click here to read the letter.

From Inkstain (John Fleck):

Upper Colorado River Basin state leaders, in a letter Friday (April 13, 2018), said the water management approach being taken by the managers of the Central Arizona Project “threaten the water supply for nearly 40 million people in the United States and Mexico, and threaten the interstate relationships and good will that must be maintained if we are to find and implement collaborative solutions” to the Colorado River’s problems.

The letter accuses CAP of “disregard(ing) the basin’s dire situation”, providing more water for Arizona at the expense of the rest of the basin. In doing so, it highlights a rift within Arizona, where an internal political feud over this and related issues has pitted CAP against the state Department of Water Resources and many of CAP’s own customers. That rift, in turn, has stalled diplomacy over efforts to develop a broad new plan to cut back water use across the Colorado River basin.

The letter, using language that is striking in the normally staid interstate diplomacy of Colorado River interstate water management, takes issue with CAP’s practice of using more water than it might otherwise – avoiding “overconserving”, in CAP’s words – in order to ensure continue big releases from Lake Powell upstream. That has the effect of expanding water use in the Lower Colorado River Basin at the expense of draining Lake Powell, the critical reservoir for protecting Upper Colorado River Basin supplies. The managers of the Central Arizona Project are “disregard(ing) the (Colorado River) basin’s dire situation at the expense of Lake Powell and all the other basin states” by using more water than they need to, the letter said.

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