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Impacts & Natural Solutions: Water & the West


Climate Change Impacts in Western Basins,  U.S. Department of the Interior Bureau of Reclamation

Document here:   http://www.usbr.gov/climate/SECURE/docs/illustration.pdf


Storing Water for a Dry Day Leads to Suits
 July 26, 2011, By FELICITY BARRINGER,  he New York Times 

from the article:   http://www.nytimes.com/2011/07/27/science/earth/27waterbank.html?src=recg

Water banking has been widely embraced as a tool for making water supplies reliable, sustainable and marketable. Groups traditionally at odds — environmentalists seeking full rivers for fish and farmers tending pistachio or pomegranate trees — agree that water banking is a useful strategy for managing a vital resource. A consulting group based in Idaho, WestWater Research, estimates there are up to 30 working water banks in the West.

As climate change produces earlier snowmelts, sending too much of the water into reservoirs in the spring and too little in summer, the need for storage grows.

“Water banking is a way of dealing with the volatility,” said Bruce Aylward, an expert in water economics who founded Ecosystem Economics in Orego n.


The economic concept is simple. Farmers, through the water districts that they control, have acquired land entitling them to use water, or have contracted for water supplies flowing to their region. Municipal and industrial water users also have rights.

While some districts limit sal es to distant urban areas, others allow them. One Kern County district,  Berrenda Mesa, sold part of its state entitlement for a one-shot payment of $3,000 an acre-foot — about 90 percent higher than its costs. The buyers were water districts supplying homes and golf courses in Palm Springs.

The value in banking lies in the certainty that water will be available when it is needed. In wet years, excess water recharges the depleted aquifer, a hedge against a prolonged drought.

The porous soil below the gravel and sand here, which are carried here from the Sierra Nevada by the Kern River, is ideal for the purpose. “It’s a huge bucket,” said Florn Core, the former water resources manager for the City of Bakersfield, which is located in a natural desert where rainfall averages 5.7 inches annually.

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Posted by Anne Wallach Thomas on Friday, September 16, 201111:39PM

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