Hakantorps avloppsreningsverk - Stora Levene Wastewater Treatment Plant, Sweden

Hakantorps avloppsreningsverk is a wastewater treatment plant located in Stora Levene, within Vara kommun, Västra Götalands län, Sweden. It serves a population of approximately 27,405, placing it in the medium agglomeration category under EU classification. As a Swedish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are sensitive. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating a facility sized for its population equivalent. The treated effluent is discharged into the local watershed, which ultimately drains into the North Sea via the Göta älv river system. This region supports diverse aquatic life and is part of a broader ecological network important for migratory fish species and water quality management in the Baltic Sea catchment.

The plant discharges into a local watercourse that flows into the Göta älv river system, which empties into the Kattegat and ultimately the North Sea. This watershed supports diverse aquatic ecosystems, including fish spawning grounds and migratory corridors. The area is part of a sensitive coastal zone where nutrient management is critical to prevent eutrophication in downstream marine environments.