Earlier this month, the California Coastal Commission approved plans for a desalination plant near Doheny State Beach. In May, the commission voted against a plant in Huntington Beach. Today we look at the differences.

The greenlighted $140 million desalination plant in south Orange County’s city of Dana Point includes technology preferred by environmentalists and regulators and could provide up to 5 million gallons per day. Unlike the rejected $1.4 billion plant in Huntington Beach (that would have produced 50 million gallons per day), the Doheny Ocean Desalination project location has unique hydrogeology that allows advanced slant wells (shown in graphics on the right) to draw water from beneath the ocean floor to protect marine life.