Club Campestre La Rosita Wastewater Treatment Plant, Torreón, Coahuila, Mexico

Club Campestre La Rosita is a wastewater treatment plant located in Torreón, Coahuila, Mexico, serving a population of about 27,382 residents. The facility is situated in the urban area of Torreón, a major city in the northern region of Mexico. As a medium-sized agglomeration, the plant plays a key role in managing municipal wastewater for the local community. Under Mexico's federal water law (Ley de Aguas Nacionales) and regulations from CONAGUA (Comisión Nacional del Agua), treatment plants serving populations of this scale are typically required to provide at least secondary treatment to meet discharge standards. The regulatory framework ensures that effluent quality is monitored to protect public health and the environment. The plant discharges treated wastewater into the local drainage system, which ultimately flows into the Nazas River basin. The Nazas River is a vital water source for the arid region of Coahuila and Durango, supporting agriculture and ecosystems. Downstream, the river feeds into the Laguna District, an important agricultural area, before ending in the Mayrán Basin, an endorheic basin with ecological significance for migratory birds and local wildlife.

The plant's treated effluent enters the Nazas River watershed, which drains the semi-arid Comarca Lagunera region. The Nazas River is a critical water source for irrigation and supports riparian habitats in an otherwise dry landscape. Downstream, the river terminates in the Mayrán Basin, an endorheic basin that sustains seasonal wetlands and provides habitat for waterfowl and other aquatic species. The region's water resources are under pressure from agricultural and urban demands, making effective wastewater treatment essential for maintaining water quality and ecological balance.