Carrillo Puerto Wastewater Treatment Plant, Compostela, Nayarit, Mexico

Carrillo Puerto is a wastewater treatment plant located in the Carrillo Puerto neighborhood of Compostela, Nayarit, Mexico. It serves a population of 1,825 people, classifying it as a small-scale municipal facility. The plant is situated inland, away from coastal areas, and operates under Mexico's national water regulations. The plant provides secondary treatment, which is the standard level required for municipal wastewater in Mexico under the Ley de Aguas Nacionales and NOM-001-SEMARNAT-1996. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's designed capacity is 259.20 cubic meters per day, with an actual discharge volume of 172.80 cubic meters per day, indicating it operates below its full capacity. The treated effluent is discharged into a local water body, likely a stream or river that eventually drains into the Pacific Ocean via the Rio Grande de Santiago or a nearby coastal basin. The region's watershed supports diverse aquatic life and agricultural activities, making proper treatment essential for protecting downstream ecosystems and water quality.

The plant discharges into a local watercourse that is part of the Pacific slope watershed in Nayarit. This region drains into the Pacific Ocean, potentially through the Rio Grande de Santiago or smaller coastal rivers. The surrounding area supports agricultural and rural communities, and the receiving water body is important for local biodiversity and irrigation. Proper secondary treatment helps reduce nutrient loading and organic pollution, safeguarding downstream aquatic habitats.