Cinctorres Wastewater Treatment Plant - Comunitat Valenciana, Spain

The Cinctorres wastewater treatment plant is located in the municipality of Cinctorres, within the comarca of Els Ports, in the province of Castellón, Comunitat Valenciana, Spain. The plant serves a population of approximately 867 residents, reflecting its role as a small-scale municipal facility in a rural inland area. The plant operates with secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent (PE) between 2,000 and 10,000. Although the designed capacity is 2,323 cubic meters per day, the actual discharge volume is 117.84 cubic meters per day, indicating significant spare capacity. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into a local watercourse, likely a tributary of the Bergantes River, which flows into the Ebro River basin. The Ebro River ultimately reaches the Mediterranean Sea, making the plant's discharge relevant to the downstream aquatic ecosystem. The plant's inland location, over 50 km from the coast, reduces direct marine impact, but its effluent contributes to the overall water quality in the Ebro basin.

The plant discharges into a local stream that is part of the Bergantes River sub-basin, a tributary of the Ebro River. The Ebro River is one of Spain's major rivers, flowing into the Mediterranean Sea via the Ebro Delta, a ecologically sensitive area that supports diverse aquatic life and important migratory bird populations. The plant's secondary treatment helps protect this downstream environment by reducing organic pollution.