Jose Maria Morelos y Pavon La Tinaja Wastewater Treatment Plant, Durango, Mexico

Jose Maria Morelos y Pavon La Tinaja is a wastewater treatment plant located in the municipality of Durango, in the state of Durango, Mexico. The facility serves a small population of 1,095 residents in the locality of Jose Maria Morelos y Pavon. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 103.68 cubic meters per day and currently discharges a similar volume, indicating full utilization. Under Mexican regulations (NOM-001-SEMARNAT-1996), secondary treatment is the minimum standard for municipal wastewater, ensuring compliance with national water quality objectives. The plant's operation is part of the country's efforts to protect water resources and public health. 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 reuse and quality management critical for sustaining local ecosystems and agricultural activities. The plant plays a key role in preventing pollution of downstream rivers and groundwater.

The plant discharges into the Rio Nazas basin, which flows through Durango and ultimately reaches the Pacific Ocean via the Laguna de Mayran and the Rio Aguanaval. The semi-arid watershed supports limited but ecologically important riparian habitats. Treated effluent helps maintain base flows in the river, which is vital for local agriculture and biodiversity, especially during dry seasons.