Overview
Imst wastewater treatment plant serves Karrösten, Tirol, Austria, with a population equivalent of 39,034. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The Imst wastewater treatment plant is located in Karrösten, within the Bezirk Imst district of Tirol, Austria. Serving a population equivalent of 39,034, it is classified as a medium agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD) 91/271/EEC. The plant is situated in the alpine region of the Inn River valley, a key watercourse in the area. As an Austrian facility, the plant is subject to national regulations implementing the EU UWWTD. For agglomerations between 10,000 and 100,000 population equivalent, the directive requires secondary treatment as a minimum, with more stringent tertiary treatment if the receiving waters are designated as sensitive areas. It is expected to comply with these standards. The treated effluent from the Imst plant is discharged into the local watershed, which ultimately drains into the Inn River. The Inn flows northward through Tirol and into Germany, joining the Danube River near Passau. The Danube then carries water to the Black Sea. The alpine environment supports diverse aquatic life, and the plant plays a crucial role in protecting the water quality of the Inn River and downstream ecosystems.
Environmental context
The Imst plant discharges into the Inn River watershed, which flows through the Austrian Alps and into Germany, eventually joining the Danube River and reaching the Black Sea. The alpine streams and rivers in this region support sensitive aquatic ecosystems, including fish species such as brown trout and grayling. The plant's treatment standards help maintain water quality in this ecologically important river system.
Frequently asked questions
The Imst wastewater treatment plant is located in Karrösten, in the Bezirk Imst district of Tirol, Austria.
The plant serves a population equivalent of 39,034, classifying it as a medium agglomeration under EU regulations.
The treated effluent is discharged into the local watershed, which flows into the Inn River. The Inn River then joins the Danube, ultimately reaching the Black Sea.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size, with potential tertiary treatment in sensitive areas.
Under the EU UWWTD, plants serving 10,000 to 100,000 population equivalent must provide at least secondary treatment. In Austria, many such plants also incorporate nutrient removal to protect sensitive alpine waters.
Nearby plants