Fraccionamiento Almendros Wastewater Treatment Plant, Villahermosa, Tabasco

Fraccionamiento Almendros is a municipal wastewater treatment facility located in the Santos Degollado neighborhood of Villahermosa, in the state of Tabasco, Mexico. The plant serves a population of about 9,127 residents, placing it in the small to medium agglomeration category for Mexican wastewater infrastructure. The plant provides secondary treatment, which is the standard level required under Mexican regulations (NOM-001-SEMARNAT) for municipal wastewater before discharge into water bodies. With a designed capacity of 864 cubic meters per day and a discharge volume matching that figure, the facility operates at full capacity. As a secondary treatment plant, it uses biological processes to reduce organic matter and suspended solids, meeting national discharge standards. The treated effluent is discharged into local water bodies that ultimately drain into the Grijalva River basin, a major hydrological system in southeastern Mexico. The Grijalva River flows into the Gulf of Mexico, supporting diverse aquatic ecosystems and providing water for agriculture and communities downstream. The plant plays a key role in protecting water quality in the region's tropical wetlands and floodplains.

The plant discharges into the Grijalva River basin, which flows through the state of Tabasco and into the Gulf of Mexico. This watershed supports extensive wetlands and floodplains that are ecologically sensitive, providing habitat for fish, birds, and other wildlife. The region's tropical climate and high rainfall make effective wastewater treatment essential to prevent nutrient pollution and protect downstream aquatic ecosystems.