America’s two largest water reservoirs at record lows

“Even just a year or two ago, most people would have thought these projections are pretty far away from ever happening.”

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SOURCEEcoWatch
An aerial view of droughts effect at Hemenway Harbor, Lake Mead, which is at its lowest level in history since it was filled 85 years ago, Monday, June 28, 2021. Allen J. Schaben / Los Angeles Times / Getty Images

The federal government is expected to declare a first-ever water shortage in the Colorado River basin by next year at the latest –some believe the call could come this summer. The declaration would implement mandatory water cuts in Lower Basin states, three of the seven in the Colorado River Compact, Newsweek and NPR reported.

The 1,450-mile-long river serves 40 million people in the American West. After a 21-year decline, its two reservoirs, Lake Mead and Lake Powell, hit record lows last month.

The shortages continue to hit farmers particularly hard, but also Indigenous tribes who have long struggled to secure their share of water, even in good years, according to Newsweek.

The river isn’t just responsible for water. Its currents power hundreds of hydroelectric dams, including the Hoover Dam, which produces roughly 4 billion kilowatt-hours of hydroelectric power for Nevada, Arizona and California each year, enough to serve 1.3 million people, according to the Bureau of Reclamation.

June runoff conditions into the reservoirs show the reservoirs are, “fast deteriorating toward ‘dead pool’ status, where stored water is so low it can’t spin the massive hydroelectric power generators buried in the dams, and large swaths of Arizona farmland going fallow,” The Colorado Sun said.

A monthly Bureau report published in June predicted a nearly 80 percent chance Lake Powell will fall below minimum target water height by next year. By 2024, there is a nearly 20 percent chance there won’t be enough water in Lake Powell to produce any energy.

The outlook for Lake Mead is slightly better but also grim, with the Bureau predicting a nearly 60 percent chance the reservoir will drop below minimum water levels by 2025, and a more than 20 percent chance the reservoir will not produce power by that same year, reported The Colorado Sun.

Despite adequate snowpack this year, climate change is fueling drought and soaring temperatures that claim the West’s most iconic waterway.

The river basin’s latest snowpack was 100 percent of normal, but only produced half of normal runoff into the Colorado River and its reservoirs. That’s because water is either evaporating or soaking into dry ground before it can reach the river, said The Colorado Sun.

“It’s startling how with each new projection, you had thought it can’t possibly get worse,” John Berggren, water policy analyst for the nonprofit Western Resource Advocates, told The Colorado Sun. “Even just a year or two ago, most people would have thought these projections are pretty far away from ever happening.”

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