Fatima Wastewater Treatment Plant: Serving Fátima, Portugal under EU UWWTD

The Fatima wastewater treatment plant is located in the town of Fátima, in the Santarém district of central Portugal. The facility serves a population equivalent of approximately 27,000, placing it within the medium agglomeration category under EU regulations. As part of Portugal's national wastewater infrastructure, the plant plays a key role in managing municipal sewage from this important religious and tourist destination. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent between 10,000 and 150,000 are required to provide secondary treatment as a minimum standard. For plants discharging into sensitive areas, such as those affecting nutrient-sensitive water bodies, tertiary treatment may be required. The Fatima plant's treatment process and capacity details are not publicly available, but the regulatory framework ensures compliance with European standards for effluent quality. The treated effluent from the Fatima plant is discharged into local watercourses that ultimately drain into the Tagus River basin, one of the most important river systems in the Iberian Peninsula. The Tagus River flows westward through Portugal and empties into the Atlantic Ocean near Lisbon. The plant's operations help protect the ecological health of these downstream waters, which support diverse aquatic life and are used for agriculture, recreation, and drinking water supply.

The Fatima plant discharges into the Tagus River basin, which drains into the Atlantic Ocean. The Tagus River is a major ecological corridor in Portugal, supporting diverse fish populations and migratory bird species. The plant's treatment performance is critical for maintaining water quality in this sensitive watershed, particularly given the region's agricultural and tourism pressures.