Norte Wastewater Treatment Plant, Ciudad Obregón, Sonora, Mexico

Norte is a wastewater treatment plant located in Ciudad Obregón, Sonora, Mexico. It serves a population of approximately 24,644 residents, classifying it as a medium-sized municipal facility. The plant is situated inland, away from coastal areas, and its operations are part of the regional wastewater infrastructure for the Cajeme municipality. The plant is expected to comply with Mexican Official Standards (NOM-001-SEMARNAT-1996) which set maximum permissible limits for pollutants in wastewater discharges into national waters. For a facility of this scale, secondary treatment is typically required to meet these standards. The population served suggests a moderate capacity. The plant discharges treated wastewater into local water bodies that eventually drain into the Gulf of California. The surrounding region is semi-arid, and the Yaqui River basin is a key hydrological feature. Proper treatment is essential to protect downstream aquatic ecosystems and support agricultural water reuse in the area.

The plant's treated effluent likely enters the Yaqui River basin, which flows through Sonora and discharges into the Gulf of California. This watershed supports diverse aquatic life and is important for local agriculture. The semi-arid climate means water resources are limited, making effective wastewater treatment critical for maintaining water quality and ecosystem health downstream.