During the first half of the 1990s, the once small, rural towns of southwestern Williamson County, Texas, directly north of the state's capital city, have experienced phenomenal population and economic growth. As this region continues to grow into the next century, demand for water services will also increase dramatically. Consequently, the four cities of southwestern Williamson County, namely Round Rock, Georgetown, Cedar Park, and Leander, are faced with a dilemma of supplying the water needs of their citizens despite the region's limited water resources and the expense of expanding their infrastructure. The development of a regional water plan would result in coordinated planning and management of the county's water resources so as to better serve the needs of local residents. In the development of such a plan, a variety of political, economic, and environmental factors must be taken into consideration.