General Alvaro Obregon Wastewater Treatment Plant, Durango, Mexico

The General Alvaro Obregon wastewater treatment plant is located in the city of General Alvaro Obregón, within the state of Durango, Mexico. It serves a population of 1,132 residents, providing secondary-level treatment to manage municipal wastewater. The plant's designed capacity is 404.35 units, with a current discharge volume of 107.14 units. As a secondary treatment facility, the plant reduces organic matter and suspended solids before discharge. Under Mexican regulations (NOM-001-SEMARNAT-1996 and subsequent updates), wastewater treatment plants must meet specific quality standards for discharge into water bodies. For small communities like this, secondary treatment is typical and sufficient to protect public health and the environment. The treated effluent is discharged into local watercourses that ultimately drain into the Pacific Ocean via the Nazas River basin. The region's semi-arid climate means water resources are scarce, making treatment and reuse critical for maintaining ecological balance and supporting downstream communities and agriculture.

The plant discharges into the Nazas River basin, which flows through Durango and eventually reaches the Pacific Ocean. This watershed supports diverse aquatic life and is important for local agriculture. The semi-arid climate makes water quality management crucial for sustaining downstream ecosystems and human uses.