Atouguia da Baleia Wastewater Treatment Plant, Peniche, Portugal

Atouguia da Baleia is a wastewater treatment plant located in the Bairro do Capitão area of Atouguia da Baleia, within the municipality of Peniche, Leiria district, Portugal. The plant serves a population of approximately 20,000 people, making it a medium-sized agglomeration under EU classification. Its coastal location places it within 50 km of the Atlantic Ocean, which influences its environmental management. As a Portuguese facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. For plants near sensitive coastal areas, more stringent treatment may be mandated to protect marine water quality. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day or similar unit), indicating its scale. The treated effluent from Atouguia da Baleia ultimately discharges into the Atlantic Ocean, likely via a local watercourse or direct marine outfall. The coastal environment supports diverse marine life and is important for local fisheries and tourism. Proper treatment is essential to prevent nutrient pollution and protect the region's ecological and economic resources.

The plant discharges into the Atlantic Ocean along Portugal's western coast, a region characterized by upwelling ecosystems that support rich marine biodiversity, including commercial fish species and seabird populations. The coastal waters near Peniche are part of a broader marine environment that includes the Berlengas archipelago, an ecologically sensitive area. Effective wastewater treatment is critical to minimize nutrient inputs and safeguard water quality for both ecological health and human uses such as recreation and fishing.