Colmenar Wastewater Treatment Plant, Colmenar, Andalucía, Spain

The Colmenar wastewater treatment plant is located in the municipality of Colmenar, in the province of Málaga, within the autonomous community of Andalucía, Spain. This facility provides secondary treatment for the local population, which is approximately 3,267 residents, reflecting a small agglomeration under EU classification. As a secondary treatment plant, Colmenar meets the minimum requirements set by the EU Urban Waste Water Treatment Directive (91/271/EEC) for discharges into freshwater or estuarine environments. The plant's designed capacity of 3,267 cubic meters per day aligns with the population served, indicating adequate sizing for current demand. The treated effluent from Colmenar is discharged into the local watershed, which ultimately drains into the Mediterranean Sea via the Guadalhorce River basin. This region supports diverse aquatic life and is important for maintaining water quality in the coastal areas of Málaga. Proper treatment helps protect downstream ecosystems and recreational waters.

The plant discharges into the Guadalhorce River basin, which flows into the Mediterranean Sea near Málaga. This coastal watershed supports diverse aquatic habitats and is important for migratory birds and marine life. The secondary treatment provided helps reduce nutrient loads and organic pollutants, safeguarding the ecological health of the downstream river and coastal waters.