Cabecera Municipal Wastewater Treatment Plant, Cocotitlan, Estado de Mexico

Cabecera Municipal is a wastewater treatment plant located in Cocotitlan, Estado de Mexico, Mexico. It serves a population of 1,835 people, classifying it as a small-scale facility within the region's municipal infrastructure. The plant employs secondary treatment, which is the standard level required under Mexican regulations (NOM-001-SEMARNAT-1996) for municipal wastewater before discharge. With a design capacity of 2,073.60 cubic meters per day and an actual discharge volume of 173.66 cubic meters per day, the plant operates well below its capacity, indicating potential for future growth or seasonal variability. The treated effluent is discharged into local water bodies that ultimately drain into the Balsas River basin, which flows into the Pacific Ocean. The plant plays a role in protecting downstream ecosystems, including agricultural areas and freshwater habitats, by reducing organic load and pollutants before release.

The plant discharges into the local drainage network within the Balsas River basin, which flows southwest through central Mexico to the Pacific Ocean. The region supports diverse aquatic life and agricultural irrigation downstream. Effective secondary treatment helps mitigate nutrient loading and organic pollution, preserving water quality for communities and ecosystems along the river corridor.