Cohuibampo Wastewater Treatment Plant, Sinaloa, Mexico

Cohuibampo is a municipal wastewater treatment plant located in the town of Cohuibampo, within the municipality of Ahome, Sinaloa, Mexico. The facility serves a population of approximately 8,671 residents, classifying it as a small to medium-sized agglomeration under Mexican wastewater regulations. The plant employs secondary treatment, which is the standard level required for urban wastewater in Mexico under NOM-001-SEMARNAT-1996. It has a designed capacity of 1,036.80 cubic meters per day and currently treats an average daily flow of 820.80 cubic meters, indicating operational headroom. The facility is situated inland, more than 50 kilometers from the coast, reducing direct marine discharge risks. The treated effluent is discharged into local water bodies that eventually drain toward the Gulf of California. The surrounding region in Sinaloa supports agricultural activities and diverse aquatic habitats, making effective wastewater treatment important for protecting downstream water quality and ecosystem health.

The plant's treated effluent flows into local waterways within the Sinaloa watershed, which ultimately drains into the Gulf of California. This coastal marine environment supports important fisheries and migratory bird populations. Effective secondary treatment helps reduce nutrient and pathogen loads, safeguarding the ecological balance of downstream estuaries and coastal zones.