As drought worsens, lake mead falls to lowest level since hoover dam was built

The reservoir created by Hoover Dam, an engineering marvel that symbolized the American ascendance of the 20th Century, has sunk to its lowest level ever, underscoring the gravity of the

extreme drought across the West. Lake Mead, formed in the 1930s from the damming of the Colorado River at the Nevada-Arizona border about 30 miles east of Las Vegas, is the largest reservoir

in the United States. It is crucial to the water supply of 25 million people including in the cities of Los Angeles, San Diego, Phoenix, Tucson and Las Vegas. As of 11 p.m. Wednesday, the

lake surface fell to 1,071.56 feet above sea level, dipping below the previous record low set on July 1, 2016. It has fallen 140 feet since 2000 — nearly the height of the Statue of Liberty

from torch to base — exposing a bathtub ring of bleached-white embankments. The drought that has brought Lake Mead low has gripped California, the Pacific Northwest, the Great Basin spanning

Nevada, Oregon and Utah, plus the southwestern states of Arizona and New Mexico and even part of the Northern Plains. Farmers are abandoning crops, Nevada is banning the watering of about

one-third of the lawn in the Las Vegas area, and the governor of Utah is literally asking people to pray for rain. Firefighters are facing worsening conditions this summer after nearly

10,000 fires in California alone during the last wildfire season burned 4.2 million acres , an area nearly as large as Kuwait. Droughts are a recurring natural hazard but made worse recently

by an accumulation of extremely dry years for most of this century. Scientists say human-influenced climate change has exacerbated the situation. The rains that deluged the West at the end

of 2015 — before the previous low-water mark was set at Lake Mead — were a mere respite from what is now a 22-year drought, the driest period in 115 years of record-keeping by the U.S.

Bureau of Reclamation, which manages water resources in the Western states. “Some states, especially parts of California and parts of the southwest, it’s really quite extreme drought

conditions,” said Ben Cook, a climate scientist at NASA’s Goddard Institute for Space Studies. In his decade of farming in North Dakota, Devin Jacobson has never seen it this dry. Jacobson’s

3,500 acres of mostly durum wheat, canola, peas and lentils near Crosby have seen little rain beyond this season beyond two inches in late May and a quarter-inch this week. “Another couple

inches would put is in a pretty good spot, but there’s nothing like that in the forecast right now,” Jacobson said. Officials across the West are enacting emergency measures. Wednesday,

Arizona’s governor declared an emergency after two fires burned more than 145,000 acres and triggered evacuations. Arizona is “in a completely unique situation relative to our historical

records,” said Michael Crimmins, a University of Arizona climate scientist. “We’re just desperately looking to the forecast to see when the monsoon might show up.” The Bureau of Reclamation

is likely to declare Lake Mead’s most extreme shortage condition for the first time ever, which would cut water supplies to Arizona, Nevada and Mexico, spokesperson Patti Aaron said. Arizona

could have its supply cut by 320,000 acre-feet, Aaron said. That is a year’s supply for nearly 1 million households, according to the Arizona Department of Water Resources. California Gov.

Gavin Newsom, facing a recall election, has issued a drought emergency proclamation for 41 of the state’s 58 counties, empowering the state to take greater control over water resources. But

he so far has stopped short of measures taken by his predecessor Jerry Brown in 2015, when California ordered mandatory water use reductions that affected voters. For now, water management

mostly concerns agricultural businesses, which consume up to 80% of California’s water. Some farmers are switching to less thirsty crops or letting land go fallow. The Regional Water

Authority, which represents water providers serving 2 million people in the Sacramento area, is recommending providers drill more wells for now, a short-term solution, and is asking

customers to voluntarily reduce consumption 10%. Jay Lund, a professor at the University of California Davis and director of its Center for Watershed Sciences, warned some of the more dire

predictions were hyperbolic, saying Californians generally comply with mandatory and voluntary reductions in water usage, enabling the state to survive until the rains come again. “There’s

going to be a lot of pain in this drought,” Lund said. “It’ll be catastrophic for some communities and for some local industries. It’ll be catastrophic for some fish species. But it’s not

going to be catastrophic statewide.”