ROWP Compania de Apa Aries Cons Local BAISOARA - Băișoara Wastewater Treatment Plant

ROWP Compania de Apa Aries Cons Local BAISOARA is a municipal wastewater treatment plant located in Băișoara, a commune in Cluj County, Romania. The plant serves a population of 611, classifying it as a small agglomeration under Romanian and EU regulations. It is situated along DJ107M in the Apuseni Mountains region, an area known for its karst landscape and numerous caves. The plant provides secondary treatment, which is the minimum required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. With a designed capacity of 1,000 m³/day and a current discharge volume of 55.29 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into a local watercourse that eventually drains into the Arieș River, a tributary of the Mureș River, which flows into the Tisza River and ultimately the Danube River and the Black Sea. The plant plays a crucial role in protecting the Arieș River basin, which supports diverse aquatic life and is used for recreation and agriculture downstream.

The plant discharges into a small stream that feeds the Arieș River, a major tributary of the Mureș River in the Tisza basin. The Arieș River is known for its trout populations and is an important migratory corridor for fish. Downstream, the Mureș River flows through the Pannonian Basin before joining the Tisza and eventually the Danube, which empties into the Black Sea. The region's karst geology makes groundwater particularly vulnerable to contamination, underscoring the importance of effective wastewater treatment.