La Concepcion La Barrigona Wastewater Treatment Plant, La Concepción, Sinaloa

La Concepcion La Barrigona is a wastewater treatment plant located in La Concepción, within the municipality of Concordia, Sinaloa, Mexico. The plant serves a small population of 1,552 residents and is part of the municipal wastewater infrastructure for the region. The plant provides secondary treatment, which is the standard level required under Mexican regulations (NOM-001-SEMARNAT) for municipal wastewater before discharge. With a designed capacity of 155.52 m³/day and a discharge volume of 146.88 m³/day, the facility operates at a high utilization rate, indicating effective management of local wastewater flows. The treated effluent is discharged into the local watershed, which ultimately drains into the Pacific Ocean via the Presidio River basin. The plant plays a key role in protecting downstream water quality and supporting the ecological health of the region's coastal and riverine environments.

The plant discharges into the Presidio River basin, which flows through Sinaloa and empties into the Pacific Ocean near Mazatlán. This coastal watershed supports diverse aquatic life and is important for local fisheries and agriculture. The secondary treatment provided helps reduce organic pollutants and suspended solids, mitigating impacts on downstream ecosystems.