The Sweetwater Authority agreed today to purchase water from Poseidon Resource Corp.’s proposed desalination plant in Carlsbad.

The Chula Vista-based authority will buy 2,400 acre feet of water annually for 30 years, Poseidon said in a news release. That’s enough water for about 4,800 families annually.

Poseidon, a Connecticut-based company, is proposing a $270 million desalination plant in Carlsbad that each day would convert 100 million gallons of seawater into 50 million gallons of drinking water. (The other 50 million gallons would go back into the ocean twice as salty.)

Poseidon has yet to clear its major hurdle: the California Coastal Commission, where some environmentalists say they have planned their major fight against the plant, which would be located at the site of the aging Encina Power Station. Environmentalists have opposed the desalination plant because they say it would perpetuate the killing of marine life that gets drawn into the power station’s cooling mechanisms.

Poseidon has a permit application pending with the commission, a process that is expected to take months.

Our most recent story on the plant is here.


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