Presa El Capulin Wastewater Treatment Plant, Huixquilucan de Degollado, Mexico

Presa El Capulin is a wastewater treatment plant located in Huixquilucan de Degollado, a municipality in the Estado de México, part of the greater Mexico City metropolitan area. The plant serves a population of about 18,300 residents, contributing to the region's wastewater management infrastructure. As a Mexican treatment facility, Presa El Capulin operates under the national regulatory framework established by the Ley de Aguas Nacionales and the Normas Oficiales Mexicanas (NOMs), which set discharge standards for wastewater treatment. For a plant of this scale, secondary treatment is typically required to meet environmental standards before discharge. The plant's treated effluent likely discharges into local watercourses that drain into the Pánuco River basin, ultimately reaching the Gulf of Mexico. The surrounding area is a densely populated urban zone with significant ecological sensitivity, requiring effective treatment to protect downstream water quality and aquatic habitats.

The plant is situated in the highlands of central Mexico, within the Lerma-Santiago-Pacífico hydrological region. Treated wastewater from this facility likely flows into the Río Hondo or nearby tributaries, which are part of the Pánuco River basin. This river system drains into the Gulf of Mexico, supporting diverse aquatic life and providing water for agricultural and urban uses downstream. The region's seasonal rainfall and mountainous terrain influence runoff patterns, making consistent treatment essential to prevent contamination of these water bodies.