CATI Wastewater Treatment Plant, Catí, Comunitat Valenciana, Spain

CATI is a wastewater treatment plant located in Catí, a municipality in the Alt Maestrat region of Castellón, Comunitat Valenciana, Spain. The plant serves a population of about 3,595 people and has a designed capacity of 3,755 cubic meters per day, with an average discharge volume of 240.74 cubic meters per day. The plant provides 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 between 2,000 and 10,000. This directive mandates secondary treatment for all discharges from such communities to protect the environment. The treated effluent is discharged into the local water system, which ultimately drains into the Mediterranean Sea. The plant plays a key role in maintaining water quality in the region, supporting both local ecosystems and downstream coastal environments.

CATI discharges treated wastewater into the local watershed, which flows through the rivers of the Alt Maestrat region and eventually reaches the Mediterranean Sea. The area supports diverse aquatic life and is part of a broader coastal ecosystem that includes important habitats for migratory birds and marine species. Proper treatment helps prevent nutrient pollution and protects the ecological balance of the receiving waters.