Soledad de Abajo Becerra Wastewater Treatment Plant, Aguascalientes, Mexico

Soledad de Abajo Becerra is a wastewater treatment plant located in the Municipio de Aguascalientes, within the state of Aguascalientes, Mexico. The plant serves a small community of approximately 2,008 residents, providing secondary treatment to manage domestic wastewater. It is situated inland, more than 10 kilometers from the coast, and operates as part of the region's municipal water infrastructure. The plant applies secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 86.40 cubic meters per day and an actual discharge volume of 190.08 cubic meters per day, the facility operates at a utilization rate exceeding its design capacity, indicating potential overloading. In Mexico, wastewater treatment plants are regulated under the National Water Law (Ley de Aguas Nacionales) and NOM-001-SEMARNAT-1996, which sets discharge limits for pollutants into national waters. The treated effluent is discharged into local water bodies that eventually drain into the Pacific Ocean via the Lerma-Santiago basin. The plant plays a crucial role in protecting downstream aquatic ecosystems and public health by reducing pollutant loads before discharge. Its operation supports the environmental quality of the region's surface waters and contributes to the sustainability of water resources in Aguascalientes.

The plant discharges into the Lerma-Santiago basin, which flows through central Mexico and ultimately reaches the Pacific Ocean. This watershed supports diverse aquatic life and provides water for agricultural and urban uses downstream. The region's semi-arid climate makes water quality management critical for maintaining ecosystem health and water availability.