#ColoradoRiver management may change under @JoeBiden administration — The #ColoradoSprings Gazette #COriver #aridification #DCP

Hoover Dam, straddling the border between Nevada and Arizona, holds back the waters of the Colorado River in Lake Mead. In 2016, Lake Mead declined to its lowest level since the reservoir was filled in the 1930s. Source: Bureau of Reclamation

From ColoradoPolitics.com (Marianne Goodland) via The Colorado Springs Gazette:

The week of Dec. 14, the seven states that are part of the Colorado River Compact began the first step for renegotiating guidelines that will decide how much water the three lower basin states and Mexico will get from Lake Mead, on the Arizona-Nevada border, and from Mead’s source, the Colorado River.

The guidelines are interim, signed in April 2007, and are due to expire in 2026. Among the most significant, the guidelines provide long-term stable management of the river and also determine the circumstances under which the Interior secretary could reduce the annual amount of water available from Lake Mead to the Colorado River lower basin states. The guidelines also are a way for the basin states to avoid litigation, part of what prompted the 2007 interim guidelines.

The seven states that make up the Colorado River Compact, and which will negotiate those guidelines, are divided into upper basin states (Colorado, Wyoming, Utah and New Mexico) and lower basin states (Arizona, Nevada and California). Mexico is also part of the lower basin water allotment, as well. About 40 million people across the seven states rely on the Colorado River for water.

Westwide SNOTEL basin-filled map December 22, 2020 via the NRCS.

Colorado, Utah, Arizona and New Mexico are dealing with extreme drought conditions, according to the U.S. Drought Monitor.

What that means for the river heading into in the future, said John Fleck, a former journalist and author and now with the University of New Mexico’s Water Resources Program, is water levels in Lake Mead could drop to 1,060 feet by 2022. That’s 15 feet below what triggers “the next tier of mandatory Lower Basin water use cuts under the river’s 2007 interim guidelines and the supplemental drought contingency plan” signed last year…

Last week, the seven states signed a joint letter to Trump administration Interior Secretary David Bernhardt and Bureau of Reclamation Commissioner Brenda Burman requesting technical support from the federal agency, as the states move forward with negotiations. The states are setting up a working group to look at modeling for the management and operations of Mead and Lake Powell, which is the water “bank” on the Colorado River for the upper basin states…

[Rebecca] Mitchell said she thinks “everything is on the table as we look toward the future.” What’s in the final report — or not — “doesn’t mean we can’t deal with bigger issues outside of the guidelines.”

That’s also where the Biden administration, and his Interior nominee, U.S. Rep. Deb Haaland, D-New Mexico, could make a difference. One of the signs from Biden toward the Colorado River is his appointment of Tanya Trujillo of New Mexico to the Department of the Interior’s transition team. Trujillo is vice chairwoman of the New Mexico Interstate Stream Commission and lower basin project director for the Colorado River Sustainability Campaign. A water lawyer, Trujillo has experience working in Interior on water issues.

“We’re hoping (the new administration) will foster negotiations that are rooted in science and create a framework that recognizes how climate change is affecting and will continue to affect the basin,” Kim Mitchell, a senior water policy adviser with Boulder-based Western Resource Advocates, told BloombergLaw.com in November.

Lake Powell, behind Glen Canyon Dam, shows the effects of persistent drought in the Colorado River Basin. (Source: U.S. Bureau of Reclamation)

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