The Tres Rios Wastewater Reclamation Facility (WRF) is the centralized biosolids processing facility for Pima County. The Nutrient Recovery Project at the Tres Rios WRF facilitated the capture of energy and nutrients in addition to cleaning wastewater. The project is the first installation of the NuReSys system in North America, making the Tres Rios WRF an industry leader in the management and sustainability of the water reclamation cycle and other renewable resources.