Overview
EL Refugio wastewater treatment plant in Villa Unión, Durango, Mexico, serves 1,643 people with secondary treatment. It discharges 155.52 cubic meters daily, operating at 20.7% of its 751.68 m³/day design capacity.
EL Refugio is a municipal wastewater treatment plant located in Villa Unión, within the municipality of Poanas, Durango, Mexico. The facility serves a population of 1,643, classifying it as a small-scale treatment system typical of rural communities in northern Mexico. The plant provides secondary treatment, which is the standard biological process for reducing organic matter and suspended solids. It has a designed capacity of 751.68 cubic meters per day and currently treats 155.52 cubic meters daily, indicating significant spare capacity. As a Mexican facility, it operates under the national water quality regulations enforced by CONAGUA (Comisión Nacional del Agua), which mandate treatment standards for municipal wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Pacific Ocean via the Nazas River basin. The plant plays a key role in protecting downstream water quality in the arid region of Durango, where water resources are scarce and sensitive to pollution.
Environmental context
The plant discharges into the Nazas River basin, a vital watercourse in the semi-arid region of Durango that flows into the Laguna de Mayrán and eventually the Pacific Ocean. The watershed supports agricultural irrigation and local ecosystems, making treatment essential to prevent eutrophication and protect aquatic life in this water-stressed area.
Frequently asked questions
EL Refugio is located in Villa Unión, within the municipality of Poanas, Durango, Mexico. Its address is Calle Álvaro Obregón, Villa Unión, Poanas, Durango.
The plant serves a population of 1,643 people, making it a small-scale municipal facility.
The treated effluent is discharged into the local watershed within the Nazas River basin, which flows toward the Laguna de Mayrán and ultimately the Pacific Ocean.
EL Refugio provides secondary treatment, which involves biological processes to reduce organic matter and suspended solids, meeting Mexican regulatory standards for municipal wastewater.
The plant operates under Mexico's national water quality regulations enforced by CONAGUA, which require secondary treatment for municipal discharges to protect water resources and public health.
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