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With New Law, Las Vegas Water Agency Bets On ‘Aggressive Municipal Water Conservation Measure’ To Remove Decorative Turf, Conserve Colorado River Supply

The backdrop for the legislation was set hundreds of miles away from Carson City, where the Colorado River meets Lake Mead and the Hoover Dam outside of Las Vegas.

Over the past two decades, Lake Mead, which holds nearly all of Las Vegas’ water, has dropped more than 100 feet amid drought and overuse. In response, federal regulators expect to declare the first-ever shortage for the Colorado River next year, triggering cuts to Arizona and Nevada’s allocations.

“Mega-Drought” Takes Dramatic Toll On Colorado River System That Provides Water to 40 Million People

Scientists are calling it a “mega-drought” brought on by climate change. The latest U.S. Drought Monitor Map shows large areas of the Southwest are “exceptionally dry,” the worst category. It’s taking a dramatic toll on the Colorado River system that provides water to 40 million people in seven states — and may force the federal government to make a drastic and historic decision. For more than eight decades, the iconic Hoover Dam has relied on water from Nevada’s Lake Mead to cover up its backside. But now, at age 85, it finds itself uncomfortably exposed. Much of the water the dam is supposed to be holding back is gone.

Hoover Dam, A Symbol of the Modern West, Faces An Epic Water Shortage

Hoover Dam towers more than 700 feet above Black Canyon on the Arizona-Nevada state line, holding back the waters of the Colorado River. On top of the dam, where visitors peer down the graceful white arc of its face, one of its art deco-style towers is adorned with a work of art that memorializes the purposes of the dam.

In five relief sculptures by Oskar Hansen, muscular men grip a boat’s wheel, harvest an armful of wheat, stand beside cascading water and lift a heavy weight overhead. Words encapsulate why the dam was built, as laid out in a 1928 law: FLOOD CONTROL, NAVIGATION, IRRIGATION, WATER STORAGE and POWER.

The Colorado River is Facing an Alarming Water Shortage for the First Time Ever

Between Las Vegas and Arizona, Lake Mead, the body of water that is fed by the Colorado River, dropped below 1,075 feet on Tuesday. The low water marks are signaling what could be the first-ever water shortage on the Colorado River, CNN reports.

The lake’s levels show a continuing decline, according to the U.S. Bureau of Reclamation (USBR), and any hope of recovery won’t happen until at least the end of 2022.

Facing a Colorado River Shortage, Arizona Prepares for the Pain of Water Cutbacks

With the Colorado River’s largest reservoir just 38% full and declining toward the threshold of a first-ever shortage, Arizona water officials convened an online meeting this week to outline how the state will deal with water cutbacks, saying the reductions will be “painful” but plans are in place to lessen the blow for affected farmers next year.

Lake Mead’s decline is expected to trigger substantial reductions in water deliveries in 2022 for Arizona, Nevada and Mexico. The largest of those cuts will affect Arizona, slashing its Colorado River supplies by 512,000 acre-feet, about a fifth of its total entitlement.

As a Hotter, Drier Climate Grips the Colorado River, Water Risks Grow Across the Southwest

The water level of Lake Mead, the country’s largest reservoir, has dropped more than 130 feet since the beginning of 2000, when the lake’s surface lapped at the spillway gates on Hoover Dam.

Twenty-one years later, with the Colorado River consistently yielding less water as the climate has grown warmer and drier, the reservoir near Las Vegas sits at just 39% of capacity. And it’s approaching the threshold of a shortage for the first time since it was filled in the 1930s.

This Stunning Timelapse Shows the Megadrought’s Toll on the West’s Largest Reservoir

Just how bad is the drought in the Western US? The shrinking of Lake Mead, the country’s largest reservoir, is a troubling indicator.

The massive man-made lake, which straddles the border of Arizona and Nevada, is now only at 39% of its full capacity, down from 44% in April 2020. That’s equivalent to a 10-foot drop in the water level, according to the latest data from the Bureau of Reclamation. Which means mandatory restrictions on the amount of water surrounding states draw from Lake Mead could be triggered in the next few months.

Three States, One River and Too Many Straws

As drought deepens across the West, California’s decision to limit State Water Project (SWP) deliveries to 5% forced Metropolitan Water District of Southern California to increase pumping from the Colorado River near Lake Havasu. The good news: there’s water behind Hoover Dam for them to use. The bad news: As MWD draws on what they call “intentionally created surplus” under a previous agreement, Lake Mead will fall below the threshold for Tier 1 restrictions, leading to a curtailment of water deliveries to Arizona farmers.

Climate Change is Hitting the Colorado River ‘Incredibly Fast and Incredibly Hard’

Beside a river that winds through a mountain valley, the charred trunks of pine trees lie toppled on the blackened ground, covered in a thin layer of fresh snow.

Weeks after flames ripped through this alpine forest, a smoky odor still lingers in the air.

The fire, called the East Troublesome, burned later into the fall than what once was normal. It cut across Rocky Mountain National Park, racing up and over the Continental Divide.

US Agencies Sign Collaborative Hydropower Agreement

Three US federal agencies signed an agreement this week that will see them working together on future hydropower development efforts. The US Bureau of Reclamation, US Department of Energy’s Water Power Technology Office and the US Army Corps of Engineers signed the Federal Hydropower generation memorandum of understanding at Hoover Dam on Monday, which was National Hydropower Day.