Krokowa Wastewater Treatment Plant, Minkowice, Poland | Secondary Treatment, Baltic Coast

The Krokowa wastewater treatment plant is located in Minkowice, a village in gmina Krokowa, powiat pucki, województwo pomorskie, Poland. It serves a population of 3,830 and has a designed capacity of 7,100 m³/day, with a current discharge volume of 546.10 m³/day. The plant provides secondary treatment, which is the standard biological treatment stage required under Polish and EU regulations. As a secondary treatment facility, Krokowa meets the requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations between 2,000 and 10,000 population equivalent. The directive mandates secondary treatment for such communities to reduce organic matter and suspended solids before discharge. The plant's capacity utilization is low relative to its design, indicating potential for future growth or seasonal variations. The plant is situated within 10 km of the Baltic Sea coast, making its discharge environmentally sensitive. Treated effluent likely flows into local streams or directly into the Baltic Sea via the Puck Bay area. This coastal region supports diverse marine life and is important for tourism and fisheries. Proper treatment helps prevent eutrophication and protects the sensitive coastal ecosystem.

The plant discharges into the Baltic Sea basin, specifically the Puck Bay area, which is part of the Gdańsk Bay. This coastal region is ecologically sensitive, supporting diverse marine life including fish, birds, and benthic communities. The Baltic Sea is a semi-enclosed brackish sea with limited water exchange, making it vulnerable to nutrient pollution. Secondary treatment reduces organic load and helps mitigate eutrophication risks in the coastal zone.