ROWP RAJA Poarta Alba Wastewater Treatment Plant, Poarta Albă, Constanța, Romania

ROWP RAJA Poarta Alba is a municipal wastewater treatment facility located on Strada Școlii in Poarta Albă, Constanța County, Romania. The plant serves a population of approximately 12,036 residents, placing it in the small-to-medium agglomeration category under Romanian and EU regulations. As a plant in an EU member state, ROWP RAJA Poarta Alba operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater or estuaries. And the plant is part of the RAJA Constanța water utility network. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Black Sea via the Danube River system or coastal streams. The region's water bodies support diverse aquatic life and are important for both ecological balance and local water resources.

The plant discharges into the local watershed near the Black Sea coast, within the Danube River basin. The receiving waters eventually reach the Black Sea, a semi-enclosed sea with sensitive marine ecosystems. The area supports diverse aquatic habitats and is important for migratory birds and fish species. Proper treatment is essential to prevent nutrient loading and protect coastal water quality.