San Juan Ixtayopan La Lupita Wastewater Treatment Plant, Tláhuac, Mexico

San Juan Ixtayopan La Lupita is a wastewater treatment plant located in the Tláhuac borough of Ciudad de México, Mexico. Serving a population of around 11,135 residents, the plant is part of the municipal wastewater infrastructure for the San Juan Ixtayopan area. The facility is situated inland, more than 50 kilometers from the coast, and contributes to local water management in the Mexico City metropolitan region. As a plant serving a medium-sized agglomeration, it is subject to Mexico's federal water quality standards, which require treatment to reduce pollutants before discharge. Plants of this scale typically employ secondary treatment technologies such as activated sludge or stabilization ponds to meet regulatory requirements. Its operation aligns with national norms for wastewater management. The treated effluent from the plant is discharged into local water bodies that ultimately drain into the Basin of Mexico, an endorheic basin that historically contained Lake Texcoco. The basin's hydrology has been heavily modified by urban development, and the plant plays a role in protecting downstream ecosystems and preventing contamination of groundwater and surface waters in the region.

The plant discharges into the Basin of Mexico, an endorheic basin that once held Lake Texcoco. Today, the basin's waterways are channeled through a complex drainage system to prevent flooding in Mexico City. The downstream environment includes remnant wetlands and agricultural areas that depend on water quality management. The plant helps reduce nutrient and pathogen loads, supporting the ecological health of these modified aquatic habitats.