Catalina is a small island with a giant water problem. Just a short ferry ride from Los Angeles, the island is home to around 4,000 people year round and sees more than 700,000 tourists a year. But Catalina relies on just a few wells, reservoirs and desalination plants for most of its water. Because of persistent drought, it’s already under strict mandatory conservation. And as of yesterday, the island is going to have to conserve even more.