Francisco Villa Wastewater Treatment Plant, Tlaxcala, Mexico

The Francisco Villa wastewater treatment plant is located in the town of Francisco Villa, within the municipality of Sanctórum de Lázaro Cárdenas, Tlaxcala, Mexico. It serves a population of approximately 2,921 residents, making it a small-scale municipal facility. The plant is situated inland, more than 10 km from the coast, and treats wastewater from the local community. The plant provides secondary treatment, which is the standard biological treatment stage that removes organic matter and suspended solids. It has a designed capacity of 276.48 cubic meters per day and currently operates at full capacity based on reported discharge volume. Under Mexican regulations (NOM-001-SEMARNAT-1996 and subsequent updates), secondary treatment is required for municipal wastewater to meet discharge standards for receiving water bodies. The treated effluent is discharged into local watercourses that eventually drain into the Gulf of Mexico via the Pánuco River basin. The plant plays a crucial role in protecting downstream water quality and aquatic ecosystems in the region. Its operation helps reduce pollution loads in the surrounding watershed, supporting environmental health and public sanitation.

The plant discharges treated wastewater into local streams that are part of the Pánuco River basin, which flows into the Gulf of Mexico. This watershed supports diverse aquatic life and provides water for agriculture and communities downstream. The plant's secondary treatment helps reduce organic pollutants and suspended solids, mitigating eutrophication risks and protecting the ecological integrity of the receiving waters.