Peñoles Wastewater Treatment Plant, Fresnillo, Zacatecas, Mexico

Peñoles is a wastewater treatment plant located in Fresnillo, Zacatecas, Mexico. It serves a small population of approximately 1,369 people, reflecting its role in a smaller community within the region. The plant is situated inland, far from coastal areas, and operates within Mexico's national water management framework. As a small-scale facility, Peñoles is subject to Mexican wastewater regulations, which require treatment to meet discharge standards set by the National Water Commission (CONAGUA). Plants of this size typically employ primary or secondary treatment to comply with local environmental norms. The regulatory framework ensures that treated effluent meets quality criteria before discharge. The plant discharges into local water bodies that ultimately drain into the interior basins of Zacatecas. The region is semi-arid, and water resources are critical for agriculture and local ecosystems. Proper treatment helps protect downstream water quality and supports the ecological health of the area's rivers and aquifers.

Peñoles discharges into the local watershed of Zacatecas, which is part of the interior drainage basin of northern Mexico. The receiving water bodies eventually flow into endorheic basins or are used for irrigation, making water quality crucial for both human use and the region's semi-arid ecosystems. The plant's operation helps mitigate pollution in a water-scarce environment, supporting aquatic life and agricultural sustainability.