Stadl an der Mur Wastewater Treatment Plant, Stadl-Predlitz, Steiermark

The Stadl an der Mur wastewater treatment plant is located in the municipality of Stadl-Predlitz, in the Steiermark region of Austria. It serves a population of 1,953 people, providing advanced treatment to protect local water quality. The plant is situated inland, away from coastal areas, and operates as part of Austria's comprehensive wastewater infrastructure. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. With a designed capacity of 2,500 cubic meters per day and an actual discharge volume of 312.47 cubic meters per day, the facility operates well below its capacity, indicating room for future growth. As an Austrian plant, it complies with the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates advanced treatment for sensitive areas and secondary treatment for all agglomerations above 2,000 population equivalent. The treated effluent is discharged into the Mur River, a major tributary of the Drava and ultimately the Danube River basin. The Mur River supports diverse aquatic life and is an important ecological corridor in the region. The plant's advanced treatment helps maintain water quality in the Mur, benefiting downstream ecosystems and communities.

The plant discharges into the Mur River, which flows through Steiermark before joining the Drava River in Croatia. The Drava then flows into the Danube, which empties into the Black Sea. The Mur River supports a variety of fish species and is a key habitat for aquatic biodiversity. The advanced treatment at this plant helps reduce nutrient loads, protecting the river from eutrophication and preserving its ecological health.