Pilotos Wastewater Treatment Plant, Aguascalientes, Mexico

Pilotos is a wastewater treatment plant located in the town of Pilotos, within the municipality of Asientos, Aguascalientes, Mexico. The plant serves a small population of approximately 2,282 residents, reflecting its role in a rural or semi-urban setting. As part of Mexico's wastewater infrastructure, it contributes to local sanitation and water quality management. The plant provides secondary treatment, which is the standard biological process for removing organic matter and suspended solids. It has a designed capacity of 345.60 m³/day and currently treats 216.00 m³/day of wastewater. Under Mexican regulations (NOM-001-SEMARNAT-1996 and subsequent updates), secondary treatment is required for discharges into national waters, ensuring compliance with environmental standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Rio San Pedro or a tributary of the Rio Aguanaval, part of the Lerma-Santiago-Pacific basin. This water body supports agricultural irrigation and local ecosystems. Proper treatment helps protect downstream water quality and aquatic life in the region.

The plant discharges into the Rio San Pedro basin, which flows into the Rio Aguanaval and eventually reaches the Pacific Ocean via the Lerma-Santiago system. The local watershed supports agricultural activities and seasonal wetlands that provide habitat for migratory birds and native species. Effective wastewater treatment is essential to prevent nutrient loading and maintain the ecological balance of this semi-arid region.