To investigate the demand and uses of graywater or effluent in Arizona, Arizona State University's Decision Center for a Desert City (DCDC) turned to a social networking and digital mapping program called WaterMatch. In 2011, ASU partnered with Intel and CH2M HILL to develop the program that "plays matchmaker" for graywater producers and consumers. DCDC is using WaterMatch to investigate the incentives, roadblocks, and constraints for wastewater reuse. “This is important because there are many different groups that are pointing to water reuse as an important part of the solution for water sustainability,” says Dave White, principal investigator, co-director of DCDC, and senior sustainability scientist in ASU's Global Institute of Sustainability. Two School of Sustainability students, Saad Ahmed and Rud Moe, were data collectors for WaterMatch, locating water treatment plants in Arizona and New Mexico.