Tierra y Libertad I Wastewater Treatment Plant, Tierra y Libertad Uno, Sinaloa

Tierra y Libertad I is a municipal wastewater treatment plant located in the community of Tierra y Libertad Uno, within the municipality of Culiacán, Sinaloa, Mexico. The plant serves a population of about 4,107 people, classifying it as a small-scale facility under Mexican wastewater regulations. The plant employs secondary treatment, which typically involves biological processes to remove organic matter and suspended solids. With a designed capacity of 397.44 cubic meters per day and an average discharge volume of 388.80 cubic meters per day, the facility operates near its design capacity. Mexican wastewater treatment plants are regulated under NOM-001-SEMARNAT-1996, which sets discharge limits for pollutants into national waters. The treated effluent is discharged into local water bodies that ultimately drain into the Pacific Ocean via the Culiacán River basin. The region's semi-arid climate and agricultural activities make proper wastewater treatment essential for protecting downstream water quality and aquatic ecosystems.

The plant discharges into the Culiacán River basin, which flows through the state of Sinaloa and empties into the Pacific Ocean near the city of Culiacán. This watershed supports diverse aquatic life and is important for local agriculture and fisheries. Proper treatment helps prevent nutrient pollution and protects the ecological health of the river and coastal waters.