San Pedro y San Pablo Teposcolula Wastewater Treatment Plant, Oaxaca, Mexico

The San Pedro y San Pablo Teposcolula wastewater treatment plant serves the community of San Pedro y San Pablo Teposcolula in the state of Oaxaca, Mexico. This facility provides secondary treatment for a population of approximately 2,738 residents, with a designed capacity of 518.40 cubic meters per day and an average daily discharge of 259.20 cubic meters. As a secondary treatment plant, it meets the standard treatment level required for municipal wastewater in Mexico under the country's environmental regulations (NOM-001-SEMARNAT). The plant's capacity utilization is at 50%, indicating room for future growth or seasonal variations in flow. The treated effluent is discharged into local water bodies, contributing to the protection of the region's water resources. Oaxaca's watersheds ultimately drain into the Pacific Ocean, and proper treatment helps safeguard downstream aquatic ecosystems and community water supplies.

The plant discharges into the local watershed in the Mixteca region of Oaxaca, which is part of the larger Papaloapan River basin or a nearby coastal basin draining to the Pacific Ocean. The area is characterized by semi-arid conditions, making water quality protection critical for local agriculture and biodiversity. Downstream ecosystems include seasonal rivers and streams that support diverse aquatic life and provide water for communities.