Overview
Żarnowiec wastewater treatment plant serves approximately 37,587 people in the Puck County area of northern Poland. The facility is located near the Baltic Sea coast, within 50 km of the shoreline.
The Żarnowiec wastewater treatment plant is situated in the village of Żarnowiec, within the gmina Krokowa in Puck County, Pomeranian Voivodeship, Poland. The facility serves a population of around 37,587, classifying it as a medium-sized agglomeration under Polish and EU regulations. Its location near the Baltic Sea coast places it in a sensitive environmental zone. As a Polish plant serving a population over 10,000, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum. For coastal areas, additional nutrient removal may be mandated to protect marine waters. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating a moderate scale. The treated effluent from the plant ultimately discharges into the Baltic Sea, a semi-enclosed sea with limited water exchange, making it vulnerable to eutrophication from nutrient inputs. The facility plays a key role in protecting the coastal ecosystem and supporting local water quality standards.
Environmental context
The plant's discharge enters the Baltic Sea via local watercourses in the Puck Bay area. The Baltic Sea is a brackish, semi-enclosed sea with high ecological sensitivity, particularly to nutrient pollution. The region supports diverse aquatic life, including fish spawning grounds and migratory bird habitats. Effective wastewater treatment is critical to prevent algal blooms and oxygen depletion in coastal waters.
Frequently asked questions
The plant is located in Żarnowiec, a village in gmina Krokowa, Puck County, Pomeranian Voivodeship, northern Poland, near the Baltic Sea coast.
The facility serves approximately 37,587 people, classifying it as a medium-sized agglomeration under EU regulations.
Treated effluent is discharged into local watercourses that flow into Puck Bay and ultimately the Baltic Sea. The plant's coastal location requires compliance with nutrient removal standards to protect the marine environment.
As a Polish plant serving over 10,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and, in sensitive coastal areas, additional nutrient removal.
For agglomerations between 10,000 and 100,000 population equivalent, the EU directive requires secondary treatment. Coastal plants may also need tertiary treatment for nitrogen and phosphorus removal to combat eutrophication in the Baltic Sea.
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