Treated water rates set by the Metropolitan Water District of Southern California have doubled over the past decade, due in part to unrestrained fiscal practices at the agency. Ratepayers are about to be on the hook for a lot more unless MWD’s out-of-control spending can be stopped. The Los Angeles-based district is the nation’s largest water agency, serving nearly 20 million people across Southern California. In San Diego County, our reliance on MWD water has been reduced by more than half over the past few decades due to strategic investments in dough-resilient water supplies.