El Rayo Wastewater Treatment Plant, Lomas de Guadalupe, Morelos, Mexico

El Rayo is a wastewater treatment plant located in Lomas de Guadalupe, a locality in the municipality of Temixco, Morelos, Mexico. The plant serves a population of around 34,273 residents, placing it in the medium agglomeration category. It is situated inland, more than 50 km from the coast, and its operations are part of the municipal wastewater infrastructure for the region. As a plant in Mexico, El Rayo operates under the national regulatory framework for wastewater treatment, which includes the Mexican Official Standards (NOMs) for water quality and discharge. For a plant of this scale, secondary treatment is typically required to meet environmental standards. The plant's treated effluent is discharged into local water bodies that ultimately drain into the Balsas River basin, one of Mexico's major hydrological systems. The Balsas River flows into the Pacific Ocean, supporting diverse aquatic ecosystems along its course. The plant plays a role in protecting downstream water quality and public health in the region.

El Rayo discharges into the Balsas River basin, which drains into the Pacific Ocean. The Balsas River supports diverse aquatic life and is important for irrigation and local communities. The plant's operations help reduce pollution in this watershed, which faces pressures from agricultural and urban runoff.