La Loma Wastewater Treatment Plant, Durango, Mexico

La Loma wastewater treatment plant is located in the town of La Loma, within the municipality of Lerdo, Durango, Mexico. The plant serves a population of 1,825 and is part of the municipal wastewater infrastructure for this community in northern Mexico. The plant provides secondary treatment, which is the standard biological treatment process for removing organic matter and suspended solids. With a designed capacity of 622.08 cubic meters per day and an actual discharge volume of 172.80 cubic meters per day, the plant operates well below its capacity, indicating room for future growth. Under Mexican regulations (NOM-001-SEMARNAT), secondary treatment is required for discharges to water bodies, and the plant's performance is likely monitored by the National Water Commission (CONAGUA). The treated effluent is discharged into local watercourses that eventually drain into the Nazas River basin, part of the endorheic Bolson de Mapimi region. This watershed supports agricultural activities and local ecosystems in the arid landscape of Durango. Proper treatment helps protect downstream water quality and the ecological health of the region's limited surface waters.

The plant discharges into the Nazas River basin, which flows into the endorheic Bolson de Mapimi, a closed basin with no outlet to the sea. This arid region relies on the river for irrigation and supports diverse desert wildlife. Secondary treatment helps maintain water quality in this sensitive watershed, where water scarcity and pollution are significant concerns.