Ejido El Avispero Wastewater Treatment Plant, Emiliano Zapata, Tabasco

Ejido El Avispero is a municipal wastewater treatment plant located in the Emiliano Zapata (Sección el Avispero) area of Tabasco, Mexico. The plant serves a small population of 1,095 residents, reflecting its role in a rural or peri-urban community within the state of Tabasco. The plant provides secondary treatment, which is the standard biological treatment process required under Mexican regulations (NOM-001-SEMARNAT-1996) for municipal wastewater. With a designed capacity of 129.60 cubic meters per day and an average discharge volume of 103.68 cubic meters per day, the plant operates at approximately 80% capacity, indicating consistent use. The treated effluent is discharged into local water bodies that ultimately drain into the Grijalva River basin, one of Mexico's most significant hydrological systems. The Grijalva River flows into the Gulf of Mexico, supporting diverse aquatic ecosystems and providing water for agriculture and communities downstream.

The plant's discharge enters the Grijalva River basin, which flows through the state of Tabasco into the Gulf of Mexico. This watershed is ecologically important, supporting wetlands, mangroves, and coastal habitats that are vital for fish, birds, and other wildlife. The region experiences a tropical climate with high rainfall, making proper wastewater treatment essential to prevent nutrient pollution and protect downstream water quality.