Calvillito Wastewater Treatment Plant, Aguascalientes, Mexico

Calvillito is a municipal wastewater treatment plant located in Calvillito, Aguascalientes, Mexico. It serves a population of 3,651 residents, classifying it as a small-scale facility within the state's wastewater infrastructure. The plant is situated in an inland area, far from coastal zones, and its operations are part of the local water management system. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a design capacity of 648.00 cubic meters per day and an average discharge volume of 587.52 m³/day, the facility operates at approximately 90.7% utilization, indicating efficient use of its capacity. As a Mexican plant, it falls under national water quality regulations enforced by CONAGUA (National Water Commission), which sets discharge standards for municipal wastewater. The treated effluent is discharged into local water bodies, contributing to the hydrological cycle of the Aguascalientes region. The plant plays a key role in protecting downstream water resources, including rivers and aquifers that support agriculture and ecosystems in the semi-arid climate of central Mexico. Its secondary treatment helps reduce pollution loads before water is returned to the environment.

Calvillito is located in the state of Aguascalientes, part of the Lerma-Santiago-Pacifico hydrological region. The treated wastewater likely discharges into local streams or arroyos that feed into the Rio Verde or Rio Santiago, eventually draining into the Pacific Ocean. The region's semi-arid climate makes water quality management critical for sustaining agricultural irrigation and aquatic habitats. The plant's secondary treatment helps mitigate nutrient and organic pollution, supporting the ecological health of downstream water bodies.