Buenavista de Cuellar Sur Wastewater Treatment Plant, Buenavista de Cuéllar, Guerrero

Buenavista de Cuellar Sur is a municipal wastewater treatment plant located in Buenavista de Cuéllar, Guerrero, Mexico. The plant serves a population of approximately 4,334 residents, providing secondary treatment to manage the community's wastewater. It is situated inland, more than 10 kilometers from the coast, and operates under Mexico's national water regulations. The plant employs secondary treatment processes, which typically involve biological treatment to reduce organic matter and suspended solids. With a designed capacity of 1,296 cubic meters per day and an actual discharge volume of 864 cubic meters per day, the plant operates below its full capacity. As a secondary treatment facility, it meets the standard requirements for municipal wastewater treatment in Mexico, which align with general international practices for communities of this size. The treated effluent is discharged into local water bodies, contributing to the protection of downstream ecosystems. The plant plays a key role in safeguarding water quality in the region, supporting the health of rivers and groundwater that eventually drain toward the Pacific coast. By reducing pollutant loads, it helps maintain the ecological balance of the surrounding watershed.

The plant discharges treated wastewater into local streams that are part of the Balsas River basin, one of Mexico's major hydrological systems. The Balsas River flows southwestward into the Pacific Ocean, supporting diverse aquatic life and agricultural activities along its course. The plant's secondary treatment helps reduce nutrient and organic pollution, protecting downstream water quality and the ecological health of the river and its coastal receiving waters.