Santa Clara Wastewater Treatment Plant, Durango, Mexico

The Santa Clara wastewater treatment plant is located in the town of Santa Clara, Durango, Mexico. It serves a population of around 3,500 residents, making it a small-scale municipal facility. The plant operates under Mexico's national water regulations, which require secondary treatment for communities of this size to reduce organic pollutants and suspended solids before discharge. The plant provides secondary treatment, a standard biological process that removes biodegradable organic matter. With a designed capacity of 1,071.36 cubic meters per day and an actual discharge volume of 331.78 cubic meters per day, the facility operates well within its capacity. This suggests room for future population growth or increased connection rates. The treated effluent is discharged into local watercourses that drain into the Nazas River basin, part of the endorheic Bolson de Mapimi region. This arid area relies heavily on groundwater and limited surface water, making proper wastewater treatment critical for protecting local water quality and supporting agricultural and ecological needs.

The plant's discharge ultimately flows into the Nazas River basin, which drains into the endorheic Bolson de Mapimi, a closed basin with no outlet to the sea. This region is ecologically sensitive due to its arid climate and reliance on limited water resources. Proper treatment helps prevent nutrient loading and contamination that could harm local aquatic life and groundwater quality.