Scottsdale Water Campus WRP - Major Wastewater Treatment Facility in Scottsdale, Arizona

Scottsdale Water Campus WRP is a major wastewater treatment facility located in Scottsdale, Arizona, serving a population of approximately 136,208. Situated in the Sonoran Desert, the plant plays a critical role in water reclamation for the rapidly growing Phoenix metropolitan area. As a large-scale facility, the plant is subject to the U. S. Clean Water Act and National Pollutant Discharge Elimination System (NPDES) permitting, administered by the Arizona Department of Environmental Quality. For agglomerations of this size, advanced treatment is typically required to meet stringent effluent limits, especially for nutrient removal in sensitive desert watersheds. The plant's treated effluent likely discharges to the Salt River or its tributaries, which flow into the Gila River and eventually the Colorado River. This water is vital for downstream agriculture, municipal supply, and ecosystem health in the arid Colorado River Basin. The facility's water reclamation efforts support groundwater recharge and reuse initiatives in the region.

The plant's receiving waters are part of the Salt River watershed, which drains into the Gila River and ultimately the Colorado River. This arid region relies heavily on reclaimed water for sustaining riparian habitats and supporting endangered species such as the southwestern willow flycatcher. The Colorado River Basin faces significant water scarcity, making advanced treatment and water reuse critical for ecological balance.