The purpose of this research was to identify different methods of governance systems for surface water treatment plants serving multiple agencies or entities. The primary objective was to develop models for the Lower Rio Grande Water Users Organization to draw on in developing regional surface water treatment facilities in the lower Rio Grande valley. A survey of New Mexico law was conducted to identify regional governance structures already allowable under state law. Agencies with acceptable models were located by means of conducting a survey of surface water treatment plants throughout the western United States and identifying those with geographic and demographic similarities to the lower Rio Grande Valley. Agencies with pertinent similarities were identified and key features were documented. The information was then placed into a format developed for ease of comparison.