Casa Blanca La Luz Lomas de Guadalupe y Ojo de Agua Wastewater Treatment Plant, Zacatecas

Casa Blanca La Luz Lomas de Guadalupe y Ojo de Agua is a municipal wastewater treatment plant located in Casa Blanca, within the municipality of Guadalupe, Zacatecas, Mexico. The plant serves a population of 3,771 and operates with a designed capacity of 604.80 cubic meters per day, processing an equivalent volume of wastewater. It provides secondary treatment, which is the standard level for communities of this size under Mexican water quality regulations (NOM-001-SEMARNAT). The plant's treatment process involves biological degradation of organic matter, reducing biochemical oxygen demand and suspended solids to meet federal discharge standards. As a secondary facility, it effectively removes pollutants before releasing treated water into the local environment. The plant's capacity utilization is at full design capacity, indicating consistent operation. The treated effluent is discharged into the local watershed, which drains into the Rio Grande de Santiago basin and ultimately reaches the Pacific Ocean. The surrounding region is semi-arid, and the plant plays a crucial role in protecting local water resources from untreated sewage. By treating wastewater, it helps maintain water quality in downstream ecosystems and supports agricultural and domestic water use in the area.

The plant discharges into the Rio Grande de Santiago basin, which flows through central Mexico and empties into the Pacific Ocean. The region's semi-arid climate makes water resources particularly sensitive to pollution. The plant's secondary treatment reduces organic loads and pathogens, protecting downstream aquatic habitats and communities that rely on the river for irrigation and drinking water.