El Vergel Triunfo Wastewater Treatment Plant, El Triunfo, Durango, Mexico

El Vergel Triunfo is a municipal wastewater treatment plant located in El Triunfo, a locality in the municipality of Gómez Palacio, Durango, Mexico. The plant serves a population of 2,738, classifying it as a small-scale facility within the region's water management infrastructure. The plant provides secondary treatment, a standard level for communities of this size under Mexican water quality regulations (NOM-001-SEMARNAT). It has a designed capacity of 432.00 cubic meters per day and currently treats 259.20 cubic meters per day, indicating operational capacity below design limits. The treated effluent is discharged into the local watershed, which ultimately drains into the Nazas River basin. This river system is critical for irrigation and domestic water supply in the arid Comarca Lagunera region. Proper treatment helps protect downstream water quality and supports agricultural and ecological needs.

The plant discharges into the Nazas River basin, a vital water source in the semi-arid Durango region. The Nazas River flows into the Laguna District, an important agricultural area, and eventually reaches the Mayrán Basin, an endorheic basin with sensitive wetland ecosystems. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality for irrigation and local biodiversity.