Valle de Los Cedros Wastewater Treatment Plant, San Luis Potosí, Mexico

Valle de Los Cedros is a wastewater treatment plant located in San Luis Potosí, Mexico, serving a population of 2,282. The plant is situated in the historic center of the city and operates under Mexico's national water regulations. The plant provides secondary treatment, which is appropriate for its scale. With a designed capacity of 864 m³/day and a current discharge volume of 518.40 m³/day, it operates below its maximum capacity. As a small municipal facility, it falls under the regulatory framework of Mexico's National Water Commission (CONAGUA), which sets discharge standards to protect water quality. The treated effluent is discharged into the local watershed, which ultimately drains into the Gulf of Mexico via the Pánuco River system. The plant plays a role in protecting downstream water bodies from untreated sewage, supporting aquatic life and water quality in the region.

The plant discharges into the San Luis Potosí Valley, part of the Pánuco River basin that flows eastward to the Gulf of Mexico. This watershed supports diverse aquatic habitats and is important for regional water supply. The secondary treatment reduces organic pollutants and suspended solids, helping to maintain the ecological health of downstream rivers and coastal waters.