Colonia 16 de Septiembre Wastewater Treatment Plant, Aguascalientes, Mexico

Colonia 16 de Septiembre is a wastewater treatment plant located in the town of 16 de Septiembre, within the municipality of Rincón de Romos, Aguascalientes, Mexico. The plant serves a population of approximately 1,095 residents, making it a small-scale facility focused on local wastewater management. The plant provides secondary treatment, which is the standard biological treatment process required for municipal wastewater in Mexico under NOM-001-SEMARNAT-1996. With a designed capacity of 129.60 thousand cubic meters per year and an actual discharge volume of 103.68 thousand cubic meters per year, the plant operates at about 80% capacity, indicating consistent utilization. The treated effluent is discharged into the local watershed, which ultimately drains into the Río Verde basin and contributes to the hydrological system of the Lerma-Santiago-Pacific region. This area supports agricultural activities and local ecosystems, making proper treatment essential for water quality and public health.

The plant discharges into the local drainage network that flows into the Río Verde, part of the Lerma-Santiago-Pacific hydrological region. This watershed supports irrigated agriculture and provides habitat for native aquatic species. Effective secondary treatment helps reduce organic pollutants and suspended solids, protecting downstream water quality in a semi-arid region where water resources are critical for both human use and ecological balance.