A critical issue facing most utilities is the protection and maintenance of a safe and reliable water supply for current and future customers so that growth and development can continue. The term "sustainability" is often used to describe the long-term safe yield of a resource and includes the impacts of competing and/or future users of the resource. Since major capital investments have or will be made to adequately treat a specific source, measures to ensure sustainability are paramount to protect the resource and investment. This paper addresses how to develop, secure and maintain a water supply to ensure sustainability. In south Florida, a definitive wet and dry season, cycling opposite the population demands, coupled with extensive drainage during the wet season, creates artificial water shortages during tourist season. The Cities of Hollywood and Pompano Beach have developed plans to address the water requirements, but broadened the scope to create a holistic water resource management plan including discussions on water availability problems, environmental concerns associated with traditional water shortages, aquifer declines and saltwater intrusion, and reductions in potable water use for landscape irrigation.