Otta renseanlegg - Municipal Wastewater Treatment Plant in Otta, Norway

Otta renseanlegg is a municipal wastewater treatment plant located in Otta, Innlandet county, Norway. The facility serves a population of approximately 8,788 people, classifying it as a small to medium agglomeration under Norwegian and EU standards. As a Norwegian plant, Otta renseanlegg operates under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The regulatory framework ensures appropriate treatment levels to protect the local environment. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Gudbrandsdalslågen River. This river flows southward through the Gudbrandsdalen valley and joins the Mjøsa lake, Norway's largest lake, before continuing to the Glomma River and eventually the Oslofjord. The plant plays a key role in maintaining water quality in this ecologically important river system.

Otta renseanlegg discharges into the Gudbrandsdalslågen River, a major tributary of the Glomma River system. The river flows through the Gudbrandsdalen valley and feeds into Mjøsa, Norway's largest lake, which is ecologically sensitive and supports diverse aquatic life. The downstream environment includes important fish habitats and recreational areas. The plant's operations help protect water quality in this watershed, which ultimately drains into the Oslofjord.