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09-04-2014, 05:39 PM #1
California Finally Moves to Stop Its Water-Wasting Ways, but Is It Too Little, Too La
California Finally Moves to Stop Its Water-Wasting Ways, but Is It Too Little, Too Late?
By Todd Woody | Takepart.com 7 hours ago Takepart.com
California has a chronic drinking problem, but at long last it’s doing something about it. After 150 years of heedlessly sucking down groundwater like Homer Simpson on a Duff beer binge, the drought-stricken state will for the first time limit how much water farmers, cities, and citizens can withdraw from wells.
Starting in 2020.
In the interim, Californians will be praying for rain. A lot of rain.
With 100 percent of the state in drought and two-thirds of California classified as in exceptional drought, the most severe category, Californians are rapidly depleting underground reserves of water that took thousands of years to accumulate. In a rainy year, the state relies on groundwater for about a third of its water supply; this year the figure is approaching 60 percent as rivers and reservoirs dry up.
If the drought persists beyond 2015 or 2016, which scientists believe is entirely possible, all bets are off. California only has a two-year supply of surface water stored in reservoirs, according to Jay Famiglietti, a senior water cycle scientist at NASA’s Jet Propulsion Laboratory and a professor at the University of California, Irvine.
Famiglietti predicts the state could drain all its groundwater in as soon as 60 years, given the current rate of depletion.
But no one really knows how much is left—California has never measured the volume of groundwater it pumps, allowing property owners who drill a well to take as much as they want.
Legislation passed by California lawmakers on Friday changes that dynamic. Well owners in the state’s most stressed basins will have to monitor how much water they withdraw and report the data to a local Groundwater Sustainability Agency. The GSAs are charged with ensuring the long-term groundwater supplies and will have the power to “control groundwater extractions by regulating, limiting, or suspending extractions from individual groundwater wells or extractions from groundwater wells in the aggregate,” according to the legislation.
California Gov. Jerry Brown has supported the package of bills and is expected to sign them into law, making California the last Western state to manage its groundwater supply.
If local officials don’t manage their water basins sustainably, the legislation allows state regulators to intervene.
That means the mandatory but relatively limited water conservation measures recently imposed by the state on residents to curtail lawn watering and car washing may be just the beginning of more stringent rationing. In other words, it’s time to rip out your lawn and install those low-flow toilets.
“I think the legislation is a step in the right direction,” Stephanie Castle, a water resources specialist at UC Irvine, said in an email.
“Developing towns in California will no longer be able to assume that groundwater will always be readily available and will be forced to determine whether or not new development will be sustained in the future in terms of water supply.”
The question is, How much more of a groundwater deficit will California dig itself into before the law takes effect?
“We are already observing some local regions (Paso Robles, for example) that have already dried up some of their wells,” said Castle. “It really depends on the amount of groundwater each region is using, and how much that region has left.”
That won’t be known for certain until data on groundwater pumping begins to be collected in 2020. In the meantime, technology can provide some answers.
A satellite program called the Gravity Recovery and Climate Experiment measures tiny changes in an area’s gravitational pull to determine its groundwater capacity. Scientists recently analyzed data collected by GRACE to determine that the Colorado River Basin, which supplies water to 40 million people, lost 65 cubic kilometers of water—that’s 17.3 trillion gallons—between 2004 and 2013. More than two-thirds of the loss was to groundwater.
Replenishing that supply won't happen anytime soon. A recent study predicted as much as a 50 percent chance the Southwest United States will be hit with a 35-year drought this century, and a 90 percent chance of a decade-long dry spell. California’s newfound urgency on groundwater may be the beginning of a transformation of how the state manages its water supply.
“With the fact that we are actually in a 'wet' period now, based on tree ring records, and the prediction of prolonged droughts in the future, groundwater management in California is definitely not a gamble—it is a necessity,” Castle said.
Related stories on TakePart:
• 7 GIFs That Will Convince You Just How Scary the Drought in the West Is
• Are You Ready for a 35-Year Drought?
• How NASA Can Save Us Billions of Gallons of Water
• If California’s Drought Weren’t Scary Enough, Now It May Trigger Earthquakes
http://news.yahoo.com/california-fin...133345858.html
Last edited by JohnDoe2; 09-04-2014 at 05:43 PM.
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09-04-2014, 11:25 PM #2
US West Faces 'Worst Drought in 500 Years'
http://www.alipac.us/f19/us-west-faces-worst-drought-500-years-297024/Last edited by JohnDoe2; 04-23-2020 at 08:12 PM.
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09-05-2014, 12:02 AM #3
People have been fighting over water in CA. since the cattle ranchers took the water from the Indians.
"In 1861, Samuel Bishop and other ranchers started to raise cattle on the luxuriant grasses that grew in the Owens Valley. They came into conflict with the Paiutes over land and water use, and most of the Paiutes were driven away from the valley by the U.S. Army in 1863 during the Ownens Valley Indian War."NO AMNESTY
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