Krylbo ARV Wastewater Treatment Plant, Avesta, Sweden

Krylbo ARV is a municipal wastewater treatment plant located in Avesta, Dalarna County, Sweden. It serves a population of around 26,253, classifying it as a medium-sized agglomeration under EU regulations. The plant is situated inland, away from the coast, and discharges into the local water system. As a Swedish facility, Krylbo ARV operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. Sweden enforces strict national standards aligned with the directive, ensuring effective treatment to protect water quality. Regulatory compliance is expected. The treated effluent from Krylbo ARV likely flows into the Dalälven River, which drains into the Baltic Sea via the Gulf of Bothnia. This river system supports diverse aquatic life and is an important ecological corridor in the region. The plant plays a key role in safeguarding downstream water quality.

Krylbo ARV discharges into the Dalälven River basin, which flows through central Sweden and empties into the Baltic Sea. The Dalälven supports a variety of fish species and provides habitat for migratory birds. The plant's operations help protect this watershed from nutrient pollution and organic contaminants, contributing to the ecological health of the downstream Baltic Sea.