St. Petersburg, Florida, shifted from a "one-size-fits-all storm" water fee to a tiered-rate structure. From changing storm water regulations and urban sprawl to increased storm activity and flooding, municipalities across the U.S. already have plenty of water-related headaches. Add aging infrastructure to the mix, and you have the perfect storm. Impervious surfaces will continue to rise. Treating storm water management responsibility as both a physical and financial resource is crucial.