San Lorenzo Malacota Wastewater Treatment Plant, Estado de México, Mexico

San Lorenzo Malacota is a wastewater treatment plant located in the municipality of San Lorenzo Malacota, Estado de México, Mexico. The facility serves a population of approximately 4,564 residents, providing secondary treatment to manage domestic wastewater from the community. Its designed capacity is 864.00 units, with a current discharge volume of 432.00 units, indicating moderate utilization. The plant operates under Mexico's national water regulatory framework, which sets effluent standards for municipal wastewater. For communities of this size, secondary treatment is typical to reduce organic matter and suspended solids before discharge. The plant's performance is subject to oversight by Mexican environmental authorities, ensuring compliance with applicable discharge limits. The treated effluent is discharged into local watercourses that ultimately drain into the Lerma River basin, a major hydrological system in central Mexico. The Lerma River flows into Lake Chapala, Mexico's largest freshwater lake, which supports diverse aquatic life and provides water for irrigation and human consumption. Protecting this watershed through effective wastewater treatment is critical for maintaining water quality and ecosystem health downstream.

The plant discharges into the Lerma River basin, which flows into Lake Chapala, a vital freshwater resource in central Mexico. The watershed supports agricultural activities and provides habitat for native fish species. Effective secondary treatment helps reduce nutrient loading and organic pollution, safeguarding water quality in the downstream lake and its associated wetlands.