Santa María Amealco Wastewater Treatment Plant, Hidalgo, Mexico

Santa María Amealco is a secondary-level wastewater treatment plant located in the community of Santa María Amealco, within the municipality of Chapantongo, Hidalgo, Mexico. The plant serves a population of 1,510 residents, providing essential sanitation services for this small agglomeration. Its location in the central highlands of Mexico places it in a semi-arid climate zone, where water resources are carefully managed. The plant employs secondary treatment, which typically involves biological processes to remove organic matter and suspended solids. With a designed capacity of 181.44 cubic meters per day and an average discharge volume of 172.80 cubic meters per day, the facility operates at approximately 95% capacity, indicating efficient utilization. As a small-scale plant in Mexico, it falls under national water quality regulations administered by CONAGUA (Comisión Nacional del Agua), which sets discharge standards to protect water bodies. The treated effluent is discharged into local watercourses that eventually drain into the Pánuco River basin, one of Mexico's major hydrological systems. The Pánuco River flows northeast to the Gulf of Mexico, supporting diverse aquatic ecosystems and providing water for agriculture and communities downstream. The plant's secondary treatment helps reduce pollution loads in this important basin.

The plant discharges into the Pánuco River basin, which drains into the Gulf of Mexico. This basin supports a variety of aquatic life and is an important water source for irrigation and human consumption in the region. The semi-arid climate of Hidalgo means that water quality management is critical to maintain ecological balance and prevent eutrophication in downstream water bodies.