Rokiskio aglomeracija Wastewater Treatment Plant, Jakiškiai, Lithuania

Rokiskio aglomeracija is a wastewater treatment plant located in Jakiškiai, within the Rokiškis district of Panevėžio apskritis, Lithuania. The plant serves a population of around 14,600, placing it in the medium agglomeration category under EU regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are required to provide secondary treatment as a minimum. It operates within Lithuania's national regulatory framework, which aligns with EU standards for wastewater management. The treated effluent is discharged into local water bodies that eventually drain into the Nemunas River basin, which flows into the Curonian Lagoon and then the Baltic Sea. The plant plays a key role in protecting the region's water quality and supporting downstream aquatic ecosystems.

The plant discharges into the Nemunas River basin, which flows into the Curonian Lagoon and ultimately the Baltic Sea. This watershed supports diverse aquatic life and is an important ecological corridor for migratory fish species. The region's water quality is sensitive to nutrient loads, making effective wastewater treatment critical for preventing eutrophication in downstream waters.