ROWP Comuna Zau de Campe Wastewater Treatment Plant, Gaura Sângerului, Mureș County

ROWP Comuna Zau de Campe is a wastewater treatment plant located in Gaura Sângerului, within the Zau de Câmpie commune in Mureș County, Romania. The plant serves a population of 1,930 and has a designed capacity of 2,000 m³/day, with an average discharge volume of 77.87 m³/day. The plant provides secondary treatment, which is the standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent between 2,000 and 10,000. As a small agglomeration, the plant meets the directive's requirements for secondary treatment before discharge into receiving waters. The treated effluent is discharged into local watercourses that eventually drain into the Mureș River, a major tributary of the Tisza River, which flows into the Danube and ultimately the Black Sea. The plant plays a key role in protecting the local watershed and downstream aquatic ecosystems from untreated wastewater pollution.

The plant discharges into the Mureș River basin, which flows into the Tisza River, a major tributary of the Danube River. The Danube Delta, a vast wetland and important ecological area, receives the combined waters. The plant's secondary treatment helps reduce organic load and nutrient pollution, supporting the health of downstream aquatic habitats and biodiversity.