Overview
RA1 Hessa is a municipal wastewater treatment plant serving 2,800 people in Ålesund, Norway. Located on Hessa island, it discharges into the surrounding marine environment of the Norwegian Sea.
RA1 Hessa is a wastewater treatment plant located on the island of Hessa in Ålesund, Norway. It serves a population of approximately 2,800 residents, making it a small-scale facility within the municipal wastewater infrastructure of the region. The plant is situated at Naustberget, close to the coast, and its operations are integrated into the local water management system. As a Norwegian facility, RA1 Hessa operates under the national regulations that implement the EU Urban Waste Water Treatment Directive (91/271/EEC) through the EEA Agreement. The plant has a designed capacity of 1.00 volume units, indicating its scale relative to the population served. The plant discharges treated wastewater into the marine waters surrounding Hessa, which ultimately flow into the Norwegian Sea. This coastal environment supports diverse marine life, including fish stocks and seabird populations. The discharge is regulated to minimize ecological impact, with Norwegian authorities enforcing strict effluent standards to protect the sensitive fjord and coastal ecosystems.
Environmental context
RA1 Hessa discharges into the coastal waters of the Norwegian Sea near Ålesund. The receiving environment is a marine ecosystem characterized by deep fjords and strong tidal currents, which aid in dilution and dispersion of treated effluent. The area supports important fisheries and marine biodiversity, including cold-water coral reefs and migratory fish species. Norwegian regulations require treatment to protect these sensitive habitats from nutrient enrichment and pollution.
Frequently asked questions
RA1 Hessa is located on the island of Hessa in Ålesund, Møre og Romsdal, Norway. The address is 51 Naustberget, Hessa, Ålesund.
RA1 Hessa serves approximately 2,800 residents in the Hessa area of Ålesund.
RA1 Hessa discharges treated wastewater into the coastal waters of the Norwegian Sea near Ålesund. The marine environment provides natural dilution and dispersion.
As a Norwegian plant, RA1 Hessa operates under national regulations implementing the EU Urban Waste Water Treatment Directive (91/271/EEC) via the EEA Agreement. Small agglomerations like this typically require secondary treatment.
For small agglomerations under 10,000 population equivalent in Norway, secondary treatment is generally required under EU-derived regulations. This ensures adequate removal of organic matter and nutrients before marine discharge.
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