San Pedro Alcántara Wastewater Treatment Plant, Vicente Guerrero, Durango, Mexico

San Pedro Alcántara is a secondary wastewater treatment plant located in Vicente Guerrero, Durango, Mexico. It serves a small population of 456 residents, reflecting its role in a rural or small community setting. The plant operates as part of Mexico's municipal wastewater infrastructure, which is regulated under the Ley de Aguas Nacionales and the NOM-001-SEMARNAT standard for discharge quality. The plant employs secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. With a designed capacity of 259.20 units and a current discharge volume of 43.20 units, the plant operates well below its capacity, indicating potential for future growth or seasonal variability. Mexican regulations require secondary treatment for discharges into water bodies, aligning with this plant's treatment level. The treated effluent is discharged into a local water body, likely a river or stream within the Nazas-Aguanaval basin, which drains into the Laguna de Mayrán or the Nazas River. This region is part of the arid to semi-arid northern Mexico, where water resources are critical for agriculture and ecosystems. The plant's operation helps protect local water quality and supports downstream communities and habitats.

The plant discharges into a local water body within the Nazas-Aguanaval basin, which ultimately drains into the Laguna de Mayrán, an important wetland in the arid region of Durango. This watershed supports agricultural irrigation and provides habitat for migratory birds and endemic species. The secondary treatment process reduces organic pollutants, helping to maintain water quality in a water-scarce environment where every drop is vital.