Overview
Essviksverket is a municipal wastewater treatment plant serving Njurunda distrikt, Sweden. It treats wastewater for approximately 10,234 people and is located near the coast of Västernorrlands län.
Essviksverket is a wastewater treatment plant located in Njurunda distrikt, within Sundsvalls kommun, Västernorrlands län, Sweden. The plant serves a population of approximately 10,234 people, placing it in the medium-agglomeration category under Swedish and EU regulations. As a Swedish facility, Essviksverket operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's treated effluent discharges into the local watershed, which ultimately drains into the Baltic Sea. The coastal location within 50 km of the sea means the plant's discharge may affect sensitive marine environments, requiring compliance with Swedish EPA standards for nutrient removal to protect the Baltic Sea from eutrophication.
Environmental context
Essviksverket's discharge enters the local river system in Västernorrlands län, which flows into the Gulf of Bothnia, a northern arm of the Baltic Sea. The Baltic Sea is a brackish, semi-enclosed sea with limited water exchange, making it highly sensitive to nutrient pollution. The plant's operations contribute to the protection of this ecologically important water body, which supports diverse aquatic life and is a critical migratory corridor for fish and birds.
Frequently asked questions
Essviksverket is located in Njurunda distrikt, Sundsvalls kommun, Västernorrlands län, Sweden. The address is 3, Pionvägen, Haraberget, Njurunda tätortsområde.
Essviksverket serves approximately 10,234 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated wastewater from Essviksverket is discharged into the local watershed, which flows into the Gulf of Bothnia and ultimately the Baltic Sea.
Essviksverket operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. Swedish EPA standards also apply, with additional nutrient removal requirements for coastal discharges to protect the Baltic Sea.
In Sweden, plants serving around 10,000 people typically provide secondary biological treatment, often with phosphorus removal to meet EU and national standards for sensitive areas like the Baltic Sea.
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