Sakkestadhaugen Wastewater Treatment Plant, Haugesund, Norway

Sakkestadhaugen is a wastewater treatment plant located in Haugesund, Rogaland, Norway. It serves a population of approximately 1,940 people, making it a small-scale facility within the country's municipal wastewater infrastructure. The plant is situated near the coast, reflecting the typical geography of this region. The plant provides secondary treatment, which is the standard level required under Norwegian regulations for smaller agglomerations. With a designed capacity of 2,000 cubic meters per day and an actual discharge volume of 841.34 cubic meters per day, the facility operates well within its capacity. Norway's regulatory framework, aligned with the EU Urban Waste Water Treatment Directive (91/271/EEC) through the EEA Agreement, mandates secondary treatment for discharges to freshwater and estuaries, with more stringent requirements for sensitive areas. The treated effluent from Sakkestadhaugen is discharged into the local water system, ultimately reaching the North Sea via the coastal waters of Rogaland. This region supports diverse marine life and is an important area for fisheries and maritime activities. The plant's coastal location necessitates careful management to protect the receiving marine environment from nutrient enrichment and other pollutants.

Sakkestadhaugen discharges treated wastewater into the coastal waters of Rogaland, which flow into the North Sea. The North Sea is a productive marine ecosystem supporting fisheries, seabird colonies, and marine mammals. The plant's secondary treatment reduces organic load and suspended solids, helping to minimize eutrophication risks in the coastal zone. The area is ecologically sensitive due to its role as a nursery ground for fish and a migratory corridor for seabirds.