San Jose de La Parrilla Wastewater Treatment Plant, Durango, Mexico

San Jose de La Parrilla is a wastewater treatment plant located in the town of San José de la Parrilla, within the municipality of Nombre de Dios, Durango, Mexico. The facility serves a population of 1,825 and is part of the region's municipal wastewater infrastructure, providing essential sanitation services to the local community. The plant employs secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 362.88 cubic meters per day and a current discharge volume of 172.80 cubic meters per day, the plant operates below its full capacity. In Mexico, wastewater treatment plants are regulated under the Federal 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, likely contributing to the Nazas River basin, which flows through the arid region of Durango. This basin supports agricultural activities and provides water for downstream communities. Proper treatment helps protect water quality in this semi-arid environment, where water resources are particularly valuable.

The plant discharges into the Nazas River basin, a vital water system in the semi-arid region of Durango. The Nazas River flows into the Laguna de Mayran, an important wetland area that supports diverse aquatic life and migratory birds. The plant's secondary treatment helps reduce organic pollution, safeguarding water quality for downstream agricultural and ecological uses in this water-scarce region.