Fabianki Wastewater Treatment Plant, Chełmica Mała, Poland

Fabianki is a wastewater treatment plant located in Chełmica Mała, within the gmina Fabianki in województwo kujawsko-pomorskie, Poland. The facility serves a population of approximately 2,480 and is part of the region's municipal wastewater infrastructure. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 4,383 m³/day and a reported discharge volume of 353.61 m³/day, the plant operates well below its capacity, indicating potential for future growth. The treated effluent is discharged into local water bodies that ultimately drain into the Vistula River basin, which flows into the Baltic Sea. The plant plays a key role in protecting the region's water quality and supporting the ecological health of downstream aquatic environments.

The plant discharges into the Vistula River basin, which flows northward through Poland and empties into the Baltic Sea via the Gdańsk Bay. This watershed supports diverse aquatic life and is an important ecological corridor for migratory fish species. The secondary treatment provided helps reduce nutrient loads and organic pollution, contributing to the health of the Baltic Sea ecosystem.