Yuma Figueroa WPCF - Arizona Wastewater Treatment Plant Serving 89,597 People

Yuma Figueroa WPCF is a municipal wastewater treatment facility located in Yuma County, Arizona, serving the communities of Avenue B & C and surrounding areas. With a population served of about 89,597, the plant is a medium-to-large agglomeration under U. S. regulatory frameworks. As a U. S. facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Arizona Department of Environmental Quality. For a plant of this scale, secondary treatment is typically required, with possible additional nutrient removal to protect downstream water quality. The plant's treated effluent is discharged into the Colorado River basin, which flows southward to the Gulf of California. The Colorado River is a critical water resource in the arid Southwest, supporting agriculture, municipal supply, and diverse aquatic ecosystems. The plant's operations are essential for maintaining water quality in this sensitive desert watershed.

The plant discharges into the Colorado River basin, which ultimately drains into the Gulf of California. The Colorado River is a vital water source in the arid Southwest, supporting endangered fish species and migratory birds. The region's low rainfall and high evaporation rates make water quality management particularly important for downstream ecosystems and agricultural users.