San Felipe de Jesús Wastewater Treatment Plant, Sonora, Mexico

The San Felipe de Jesús wastewater treatment plant is located in the town of San Felipe de Jesús, Sonora, Mexico. It serves a small population of 1,013 residents, reflecting its role in a rural or semi-urban community. The plant is part of Mexico's municipal wastewater infrastructure, which is regulated by the National Water Commission (CONAGUA) under the Federal Water Rights Law. The plant provides secondary treatment, a standard level for communities of this size in Mexico. It has a designed capacity of 130.46 cubic meters per day and currently discharges 95.90 cubic meters per day, indicating it operates below capacity. As a small facility, it is subject to national discharge standards (NOM-001-SEMARNAT) that set limits on pollutants like biochemical oxygen demand and total suspended solids. The treated effluent is discharged into the local watershed, which ultimately drains into the Gulf of California via the Sonora River basin. The region's arid climate makes water reuse and quality management critical for sustaining local agriculture and ecosystems. The plant helps protect downstream water bodies from untreated sewage, supporting both human and ecological health.

The plant discharges into the Sonora River basin, which flows through central Sonora and empties into the Gulf of California. This coastal ecosystem supports diverse marine life, including fish and crustaceans important for local fisheries. The arid climate means water resources are scarce, making effective wastewater treatment essential for maintaining water quality in the river and downstream estuary.