Rojas Wastewater Treatment Plant, Durango, Mexico - Small Community Facility

Rojas wastewater treatment plant is located in the town of Rojas, within the municipality of Nombre de Dios, Durango, Mexico. It serves a small population of 456 residents, reflecting its role in a rural or small community setting. The plant is situated inland, far from coastal areas, and operates under Mexico's national water regulations. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 259.20 volume units and a current discharge volume of 43.20 volume units, the plant operates well below its capacity, indicating potential for future growth or seasonal variability. As a small facility, it is subject to Mexican official standards (NOM-001-SEMARNAT) that set discharge limits for pollutants. The treated effluent is discharged into a local water body, likely a stream or arroyo that eventually drains into the larger hydrological network of the Nazas-Aguanaval basin, which flows into the Laguna de Mayran or the Rio Grande de Nazas. This region is semi-arid, making water quality management critical for local agriculture and ecosystem health.

The plant discharges into a local watercourse that is part of the Nazas-Aguanaval basin, a semi-arid watershed in northern Mexico. This basin supports irrigated agriculture and provides habitat for native species adapted to seasonal flows. Downstream, the waters may reach the Laguna de Mayran, an important wetland area that serves as a migratory bird corridor and supports diverse aquatic life. Protecting water quality in this basin is essential for maintaining ecological balance and agricultural productivity.