SAN DIEGO -- Mexico ships televisions, cars, sugar and medical equipment to the United States. Soon, it may be sending water north.
Western states are looking south of the border for water to fill drinking glasses, flush toilets and sprinkle lawns, as four major U.S. water districts help plan one of two huge desalination plant proposals in Playas de Rosarito, about 15 miles south of San Diego. Combined, they would produce 150 million gallons a day, enough to supply more than 300,000 homes on both sides of the border.
The proposed plants have also sparked concerns that American water interests looking to Mexico are simply trying to dodge U.S. environmental reviews and legal challenges.
Desalination plants can blight coastal landscapes, sucking in and killing fish eggs and larvae. They require massive amounts of electricity and dump millions of gallons of brine back into the ocean that can, if not properly disposed, also be harmful to fish.
But desalination has helped quench demand in Australia, Saudi Arabia and other countries lacking fresh water.
"It raises all kinds of red flags," said Joe Geever, California policy coordinator for the Surfrider Foundation, an environmentalist group that has fought the Carlsbad plant for years in court, saying it will kill marine life and require too much electricity.
"It's expensive enough to desalinate. I just don't see how it calculates out," he said.
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