Limon de Los Ramos Wastewater Treatment Plant, El Limón de los Ramos, Sinaloa

Limon de Los Ramos is a wastewater treatment plant located in El Limón de los Ramos, a community in the municipality of Culiacán, Sinaloa, Mexico. The plant serves a population of 4,439, classifying it as a small-scale facility within the state's wastewater infrastructure. The plant employs secondary treatment, which is the standard biological process required for municipal wastewater in Mexico under NOM-001-SEMARNAT-1996. With a designed capacity of 691.20 cubic meters per day and a current discharge volume of 648.00 cubic meters per day, the plant operates near its intended capacity, ensuring effective treatment of local sewage. The treated effluent is discharged into the local watershed, which ultimately drains into the Pacific Ocean via the Culiacán River basin. This region supports agricultural activities and diverse aquatic habitats, making proper wastewater treatment essential for protecting downstream water quality and ecosystem health.

The plant discharges into the Culiacán River basin, which flows through the state of Sinaloa and empties into the Gulf of California (Pacific Ocean). This watershed supports irrigated agriculture, particularly sugarcane and vegetables, and provides habitat for fish and migratory birds. Secondary treatment helps reduce organic pollutants and pathogens, safeguarding the river's ecological balance and downstream coastal waters.