The new administration has signaled a shift in water policy by specifically talking about turning salty water potable after Gov. Gavin Newsom (D) said he would support only a single tunnel as part of the project known as WaterFix. … But talking up desalination is much easier than making it a reality. In the four years since California updated its desalination regulations, none of the eight applications for new or expanded facilities has been approved. Meanwhile, the costs for the projects keep rising and the state has few details about its plans.