Palo Alto Wastewater Treatment Plant, Aguascalientes, Mexico

Palo Alto wastewater treatment plant is located in the community of Palo Alto, within the municipality of El Llano, Aguascalientes, Mexico. The plant serves a population of 2,611 and operates at secondary treatment level, which is standard for small communities in Mexico under NOM-001-SEMARNAT-1996 regulations. The plant has a designed capacity of 1,555.2 m³/day and currently discharges 864 m³/day of treated wastewater. As a secondary treatment facility, it removes organic matter and suspended solids, meeting Mexican discharge standards for inland water bodies. The treated effluent is discharged into the local watershed, which drains into the Aguascalientes Valley and eventually contributes to the Rio Verde basin. This region is part of the Lerma-Santiago-Pacific hydrological system, supporting agricultural irrigation and local ecosystems.

The plant discharges into the Aguascalientes Valley watershed, which flows into the Rio Verde and ultimately the Lerma River, a major waterway in central Mexico. The Lerma River supports diverse aquatic life and provides water for agriculture and urban use downstream. The region's semi-arid climate makes water quality management critical for maintaining ecological balance and human water security.