Moctezuma Wastewater Treatment Plant, Paraíso, Tabasco, Mexico

The Moctezuma wastewater treatment plant is located in the Moctezuma Segunda Sección area of Paraíso, Tabasco, Mexico. It serves a population of 3,651 and operates with secondary treatment, a standard level for small communities in Mexico. The plant's designed capacity is 604.80 m³/day, with an average discharge volume of 345.60 m³/day. As a secondary treatment facility, Moctezuma meets the basic requirements under Mexican water quality regulations (NOM-001-SEMARNAT), which set discharge limits for organic matter and suspended solids. For small agglomerations like this, secondary treatment is typically sufficient to protect receiving waters, though nutrient removal is not mandated unless the water body is identified as sensitive. The plant is situated within 10 km of the coast, indicating its discharge likely reaches the Gulf of Mexico via local drainage. The surrounding region of Tabasco is characterized by wetlands and rivers that support diverse aquatic life. The plant's operation helps reduce pollution loads to these coastal ecosystems, which are important for fisheries and biodiversity.

The plant discharges into local watercourses that drain into the Gulf of Mexico, a major marine ecosystem supporting commercial fisheries and migratory species. The Tabasco region features extensive wetlands and lagoons that provide critical habitat for aquatic birds and fish. Effective wastewater treatment is essential to prevent eutrophication and protect these sensitive coastal environments from nutrient and pathogen pollution.