The information in this report is based on telephone interviews with 700 registered voters. One random sample of 500 registered voters was selected from all registered voters living in Arizona. This sample was proportionately stratified so that voters in each of Arizona’s 15 counties were included in the sample. An additional sample of 100 interviews with registered voters living in Pima County was also interviewed. A third random sample of 100 registered voters living in the more rural counties also was interviewed. The purpose of selecting the two smaller samples was to create sub-samples of Pima County and rural voters that could be compared with the opinions of voters in Maricopa County.

The La Paz County Comprehensive Plan is the first overall plan for development countywide. Due to the passage of new state requirements and a desire to plan for the future, the La Paz County Board of Supervisors contracted with Partners for Strategic Action, Inc. to develop the county’s first comprehensive plan. The consulting team was directed to solicit broad community participation, study the county planning area, and develop a plan that would be an easy-to-understand policy document that will guide La Paz County’s development in the future.

“What about the water?” was one of the questions Morrison Institute for Public Policy asked in its 2008 study, "Megapolitan: Arizona’s Sun Corridor". That report looked at the potential growth of the Sun Corridor as Tucson and Phoenix merge into one continuous area for economic and demographic purposes.

With its brief review of the water situation in urban Arizona, "Megapolitan" left a number of questions unanswered. This report will consider questions like these in more detail in order to examine the Sun Corridor’s water future. This topic has received less sophisticated public discussion than might be expected in a desert state. Arizona’s professional water managers feel they are relatively well prepared for the future and would like to be left alone to do their job. Elected officials and economic-development professionals have sometimes avoided discussing water for fear of reinforcing a negative view of Arizona. This report seeks to contribute to this understanding, and to a more open and informed conversation about the relationship of water and future growth.