La Fuente Wastewater Treatment Plant, Querétaro, Mexico

La Fuente wastewater treatment plant is located in the town of La Fuente, within the municipality of Tequisquiapan, Querétaro, Mexico. The facility serves a population of 3,651 and provides secondary treatment, a standard level for communities of this size in Mexico. The plant has a designed capacity of 432.00 m³/day and currently treats 345.60 m³/day of wastewater. As a secondary treatment plant, La Fuente meets the requirements set by Mexico's National Water Law (Ley de Aguas Nacionales) and operates under the oversight of the National Water Commission (CONAGUA). For small agglomerations like this, secondary treatment is the expected minimum to reduce organic pollutants and suspended solids before discharge. The plant's consistent operation supports local water quality goals. The treated effluent is discharged into the local watershed, which ultimately drains into the San Juan River, a tributary of the Pánuco River that flows into the Gulf of Mexico. This downstream connection highlights the plant's role in protecting both local streams and the broader Gulf ecosystem from untreated wastewater pollution.

The plant discharges into the San Juan River basin, which flows into the Pánuco River and eventually reaches the Gulf of Mexico. This watershed supports diverse aquatic life and provides water for agriculture and communities downstream. The secondary treatment process reduces organic load and suspended solids, helping to maintain the ecological health of the receiving waters and prevent eutrophication in the Gulf.