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Saturday, November 24, 2012

US, Mexico Sign Rules on Sharing Colorado River


The Colorado River flows 1,450 miles (2,230km) from the Rockies into the Gulf of California.


The United States and Mexico on Tuesday  Nov 20,2012 signed a pact for new rules on sharing water from the Colorado River, capping a five-year effort on how to spread the pain of drought and reap the benefits of wet years.


Under the deal, the US will send less water to Mexico during a drought, while Mexico will be able to store water north of the border during wet years. 



 


The agreement is a major amendment to a 1944 treaty considered sacred by many south of the border. The treaty grants Mexico 1.5 million acre-feet of river water each year — enough to supply about 3 million homes — making it the lifeblood of Tijuana and other cities in northwest Mexico.
The pact represents a major departure from years of hard feelings in Mexico about how the U.S. manages the 1,450-mile river, which runs from the Rocky Mountains to Mexico.The US and Mexico signed a treaty in 1944 governing the allocation of resources from the Colorado River, which supplies seven US and two Mexican states.

The latest accord, which runs until 2017, is a major amendment of the original treaty.The far-reaching agreement gives Mexico badly needed water storage capacity in Lake Mead, which stretches across Nevada and Arizona.Mexico will forfeit some of its share of the river during shortages, bringing itself in line with western U.S. states that already have agreed how much they will surrender when waters recede.

Mexico also will capture some surpluses when waters rise. Mexico will begin to surrender some of its Colorado River allotment when Lake Mead drops to 1,075 feet above sea level and begin to reap surpluses when it rises to 1,145 feet. Mexico will be allowed to store up to 250,000 acre-feet of water in the reservoir and draw on nearly all of those reserves whenever needed.

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