Kunhlevagen Wastewater Treatment Plant, Osøyro, Norway

Kunhlevagen is a wastewater treatment plant located in Osøyro, Bjørnafjorden municipality, Vestland county, Norway. It serves a population of 1,343 people, classifying it as a small agglomeration under Norwegian and EU regulatory frameworks. The plant provides secondary treatment, which is the minimum standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for discharges into freshwater and estuaries. With a designed capacity of 2,100 cubic meters per day and an actual discharge volume of 582.43 cubic meters per day, the plant operates well below its capacity, indicating room for future growth. The plant is situated within 10 km of the coast, and its treated effluent likely discharges into the nearby fjord system, which ultimately drains into the North Sea. This coastal environment supports diverse marine life and is subject to strict discharge regulations to protect water quality and ecosystems.

The plant discharges into the coastal waters of Bjørnafjorden, a fjord system in Vestland county that connects to the North Sea. This marine environment supports diverse aquatic life, including fish, crustaceans, and seabirds, and is an important area for local fisheries and recreation. The fjord's water quality is influenced by both freshwater inputs from surrounding rivers and tidal exchanges with the open sea.