Cadereyta Wastewater Treatment Plant - Cadereyta de Montes, Querétaro, Mexico

The Cadereyta wastewater treatment plant is located in Cadereyta de Montes, Querétaro, Mexico, and serves a population of approximately 7,576 residents. It operates as a secondary treatment facility, which is the standard level for municipal wastewater in Mexico under NOM-001-SEMARNAT-1996 regulations. The plant has a designed capacity of 1,382.40 cubic meters per day and currently discharges 717.12 cubic meters of treated effluent daily. As a secondary treatment plant, Cadereyta uses biological processes to reduce organic matter and suspended solids, meeting Mexican discharge standards. For a community of this size, secondary treatment is appropriate and aligns with national requirements for inland discharge. The plant's operational context reflects typical municipal infrastructure in semi-arid central Mexico, where water reuse and conservation are increasingly important. The treated effluent from Cadereyta likely discharges into a local arroyo or tributary of the Moctezuma River, which flows into the Pánuco River and eventually reaches the Gulf of Mexico. The receiving water body supports local agriculture and ecosystems, making proper treatment essential for protecting downstream water quality and aquatic life in the Pánuco basin.

The Cadereyta plant discharges into the Moctezuma River basin, part of the larger Pánuco River watershed that drains into the Gulf of Mexico. This semi-arid region relies on surface water for irrigation and domestic use, so treated effluent quality directly impacts downstream communities and ecosystems. The Pánuco River supports diverse aquatic species and provides critical habitat for migratory birds along the Gulf coast.