Kragero avlopsrenseanlegg - Kragerø Municipal Wastewater Treatment Plant

Kragero avlopsrenseanlegg is a municipal wastewater treatment plant located in Kragerø, Telemark, Norway. The plant serves a population of approximately 12,518 people, making it a medium-sized facility within the Norwegian wastewater infrastructure. As a Norwegian treatment plant, it operates under national regulations that implement the EU Urban Waste Water Treatment Directive (91/271/EEC) through the EEA Agreement. For agglomerations of this scale, secondary treatment is typically required, with more advanced treatment if discharging into sensitive areas. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Skagerrak strait, part of the North Sea. This coastal discharge area supports diverse marine life and is important for local fisheries and recreation.

The plant discharges into the Kragerøfjord, a coastal fjord system that flows into the Skagerrak strait between Norway and Denmark. This marine environment supports diverse aquatic life, including fish populations and benthic habitats. The fjord's water quality is influenced by both freshwater inputs and tidal exchange, making nutrient management important for preventing eutrophication.