Aconchi Wastewater Treatment Plant, Sonora, Mexico

The Aconchi wastewater treatment plant is located in the town of Aconchi, in the state of Sonora, Mexico. It serves a population of about 3,149 residents, making it a small-scale municipal facility. The plant is situated inland, away from coastal areas, and plays a key role in managing local wastewater. The plant provides secondary treatment, which is the standard biological treatment process for removing organic matter and suspended solids. With a designed capacity of 324 cubic meters per day and a current discharge volume of 369.79 cubic meters per day, the facility operates near its capacity. Under Mexican regulations (NOM-001-SEMARNAT-1996), secondary treatment is required for discharges into rivers and streams to meet water quality standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Gulf of California via the Sonora River system. This contributes to the protection of downstream aquatic ecosystems and supports water quality in the region's arid environment.

The plant discharges into the Sonora River basin, which flows through the Sonoran Desert and empties into the Gulf of California. This watershed supports diverse riparian habitats and is important for migratory birds and native fish species. Proper wastewater treatment helps maintain water quality in this ecologically sensitive arid region.