Overview
Cerro de La Estrella wastewater treatment plant serves over 1.3 million people in Mexico City, operating under Mexico's national water regulations. It is located in the Iztapalapa borough of the capital.
Cerro de La Estrella is a major wastewater treatment plant located in the Iztapalapa borough of Mexico City, serving a population of over 1.3 million residents. As one of the largest treatment facilities in the metropolitan area, it plays a critical role in managing the city's wastewater infrastructure. The plant operates under Mexico's federal water regulations, which require treatment standards aligned with the country's environmental laws. For a facility of this scale, advanced treatment is typically expected to protect public health and the environment. The plant's designed capacity is 1. Treated effluent from the plant is discharged into the local drainage system, which ultimately flows into the Valley of Mexico basin. This basin is an endorheic basin with no natural outlet, making water quality management particularly important to prevent contamination of groundwater and the surrounding ecosystem. The plant's operations are vital for protecting the region's water resources.
Environmental context
The plant discharges into the Valley of Mexico basin, an endorheic basin that historically contained Lake Texcoco. Today, the basin's water bodies are highly managed through canals and drainage systems. The downstream environment includes sensitive wetlands and agricultural areas that rely on treated water for irrigation, making proper treatment essential to prevent nutrient loading and contamination.
Frequently asked questions
The plant is located in the Iztapalapa borough of Mexico City, at Calle Ignacio Comonfort in the Unidad Habitacional Cuitláhuac neighborhood.
The plant serves approximately 1,365,438 people, making it one of the largest treatment facilities in Mexico City.
Treated effluent is discharged into the local drainage system, which flows into the Valley of Mexico basin, an endorheic basin with no natural outlet to the sea.
The plant operates under Mexico's federal water laws, including the National Water Law and standards set by CONAGUA (National Water Commission), which mandate treatment levels appropriate for large urban agglomerations.
For large agglomerations like this, Mexican regulations typically require secondary or advanced treatment to reduce organic matter and pathogens before discharge, especially in sensitive basins like the Valley of Mexico.
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