ROWP Primaria Stefanesti Wastewater Treatment Plant, Condoiești, Vâlcea

ROWP Primaria Stefanesti is a municipal wastewater treatment plant located in Condoiești, a village within Ștefănești commune, Vâlcea County, Romania. The plant serves a population of 620, classifying it as a small agglomeration under Romanian and EU regulations. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. The designed capacity of 500 m³/day indicates the plant is sized to accommodate the current population, with a reported discharge volume of 107.21 m³/day. The treated effluent is discharged into a local watercourse that ultimately drains into the Olt River basin, a major tributary of the Danube River. The Danube then flows into the Black Sea. The plant's inland location, over 50 km from the coast, reduces direct marine impact, but its discharge contributes to the overall nutrient load in the Danube-Black Sea system.

The plant discharges into a small tributary of the Olt River, which flows southward to join the Danube. The Danube carries the effluent to the Black Sea, a semi-enclosed sea sensitive to eutrophication from nutrient pollution. The Olt River basin supports diverse aquatic life and is used for irrigation and recreation. Protecting water quality in this basin is important for both local ecosystems and the downstream Black Sea environment.