San Luis Tlaxialtemalco Wastewater Treatment Plant, Ciudad de México, Mexico

San Luis Tlaxialtemalco is a wastewater treatment plant located in the Xochimilco borough of Ciudad de México, Mexico. It serves a population of approximately 47,690 residents, placing it in the medium agglomeration category for Mexican wastewater infrastructure. The plant is situated in the southern part of the Mexico City metropolitan area, an inland urban region with high population density. As a municipal facility in Mexico, the plant is subject to the country's federal water laws, including the National Water Law (Ley de Aguas Nacionales) and NOM-001-SEMARNAT-1996, which sets discharge standards for wastewater. For a plant serving around 47,690 people, secondary treatment is typically required to meet these standards. The plant has a designed capacity of 1.00 (likely in million liters per day or similar units), indicating it is sized to handle the wastewater from its service area. The plant discharges treated effluent into local water bodies within the Valley of Mexico basin. This region is part of the Pánuco River basin, which ultimately drains into the Gulf of Mexico. The Xochimilco area is known for its canals and chinampas (artificial islands), an ecologically sensitive zone that supports diverse aquatic life and is an important migratory corridor for birds. Proper treatment is essential to protect these water resources and the downstream environment.

The plant is located in the Valley of Mexico, a high-altitude basin that drains via the Pánuco River to the Gulf of Mexico. The Xochimilco wetlands, part of this basin, are an ecologically sensitive area with canals and chinampas that support diverse aquatic life and migratory birds. Treated effluent from the plant contributes to maintaining water quality in this important urban ecosystem.