Historically, development in South Florida focused around our coastlines, then migrated inland based on land availability. Natural waterways and man-made canals provide a hydraulic means to move water toward our coastal areas and provide flood relief. As developable land becomes more scarce, identifying a parcel with a point of legal positive outfall, or connection to a permissible drainage system such as a canal, becomes critical to limit size requirements of the on-site stormwater management system.