San Pablo Huitzo Wastewater Treatment Plant, Oaxaca, Mexico

San Pablo Huitzo wastewater treatment plant is located in the town of San Pablo Huitzo, in the state of Oaxaca, Mexico. The plant serves a population of approximately 1,369 people, providing essential wastewater management for this small community. The plant employs secondary treatment, a standard biological process that removes organic matter and suspended solids. It has a designed capacity of 311.04 cubic meters per day and currently discharges 129.60 cubic meters per day, indicating it operates below its full capacity. As a Mexican facility, it operates under national water quality regulations, including NOM-001-SEMARNAT-1996 which sets limits for pollutants in wastewater discharges. The treated effluent is discharged into local water bodies, contributing to the protection of the region's water resources. Oaxaca's diverse hydrology includes rivers that drain into the Pacific Ocean, and proper wastewater treatment is vital for safeguarding downstream ecosystems and communities.

The plant discharges into local waterways that are part of the broader drainage system in Oaxaca, ultimately flowing toward the Pacific Ocean. The region supports diverse aquatic life and is important for local agriculture and drinking water supplies. Effective treatment helps prevent nutrient pollution and protects downstream ecological health.