San Gabriel Wastewater Treatment Plant, Durango, Mexico

The San Gabriel wastewater treatment plant is located in the town of San Gabriel, within the municipality of Ocampo, Durango, Mexico. It serves a small community of 548 residents, reflecting its role as a local facility for a rural agglomeration. The plant operates with secondary treatment, which is a standard biological process that removes organic matter and suspended solids. With a designed capacity of 345.60 cubic meters per day, the plant treats an average daily flow of 51.84 cubic meters, indicating a utilization rate well below capacity. This suggests the facility has room to accommodate future population growth or seasonal variations. As a Mexican plant, it falls under national water quality regulations administered by CONAGUA (Comisión Nacional del Agua), which sets discharge standards for municipal wastewater. The treated effluent is discharged into local water bodies that eventually drain into the Pacific Ocean via the Rio Nazas basin. The region's semi-arid climate makes water resources particularly valuable, and proper treatment helps protect downstream ecosystems and agricultural water supplies. The plant's secondary treatment ensures compliance with basic environmental standards for small communities.

The plant discharges into the Rio Nazas watershed, which flows through Durango and Coahuila before reaching the Laguna de Mayran and ultimately the Pacific Ocean. The region's semi-arid climate means that water quality in these rivers is critical for local agriculture and biodiversity. The treated effluent supports the ecological health of downstream water bodies, which provide habitat for native fish and migratory birds.