Gustavo Díaz Ordaz Wastewater Treatment Plant, Tamaulipas, Mexico

The Gustavo Díaz Ordaz wastewater treatment plant serves the municipality of Gustavo Díaz Ordaz in the state of Tamaulipas, Mexico. It is a secondary treatment facility designed to handle a population equivalent of approximately 9,127 people, with a designed capacity of 1,814.4 m³/day and an average discharge volume of 864 m³/day. As a secondary treatment plant, it meets the standard level required for municipal wastewater in Mexico under NOM-001-SEMARNAT-1996, which sets discharge limits for pollutants. The plant operates within the regulatory framework of the National Water Commission (CONAGUA), which oversees water quality and permits. The treated effluent is discharged into local water bodies that eventually drain into the Gulf of Mexico. The plant plays a key role in protecting downstream ecosystems, including the Rio Grande basin, by reducing organic load and pathogens before discharge.

The plant discharges into the Rio Grande basin, which flows into the Gulf of Mexico. This region supports diverse aquatic life and is important for migratory birds. The secondary treatment helps reduce nutrient and pathogen loads, protecting downstream water quality and the sensitive coastal environment of the Gulf.