ARA AV Oberes Piestingtal 3000 WB Wastewater Treatment Plant, Pernitz, Austria

ARA AV Oberes Piestingtal 3000 WB is a wastewater treatment plant located in Pernitz, in the state of Niederösterreich, Austria. The plant serves a population of approximately 35,666, classifying it as a medium-sized agglomeration under EU guidelines. It operates within the Piestingtal region, contributing to local water management infrastructure. As an Austrian facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant likely employs biological treatment to meet regulatory standards. The population served indicates a facility of moderate scale. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Danube River basin. This connection highlights the plant's role in protecting downstream water quality in one of Europe's major river systems. Proper treatment helps safeguard aquatic ecosystems and supports the ecological health of the Danube and its tributaries.

The plant discharges into the Piesting River, a tributary of the Fischa River, which flows into the Danube River. The Danube is a major European waterway that drains into the Black Sea. The local watershed supports diverse aquatic life and is part of a broader ecological network. Effective wastewater treatment is crucial to prevent nutrient pollution and maintain water quality in this sensitive river system.