Halinow Wastewater Treatment Plant - Długa Kościelna, Poland

The Halinow wastewater treatment plant is located in Długa Kościelna, a village in the Halinów municipality, powiat miński, województwo mazowieckie, Poland. It serves a population of approximately 9,437 people, classifying it as a small to medium agglomeration under Polish and EU regulations. The plant is situated inland, away from coastal areas, and its operations are integrated into the regional water management system. As a Polish wastewater facility, Halinow operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates appropriate treatment before discharge into receiving waters. The plant is expected to meet these regulatory standards to protect local water quality. The treated effluent from Halinow is discharged into local watercourses that ultimately drain into the Vistula River basin, which flows northward into the Baltic Sea. The facility plays a key role in safeguarding the ecological health of the surrounding watershed, supporting aquatic life and preventing nutrient pollution in downstream environments.

The Halinow plant discharges into the local tributaries of the Vistula River, Poland's longest river, which flows into the Baltic Sea. The watershed supports diverse aquatic habitats and is important for migratory fish species. The plant's operations help reduce nutrient loads and organic pollution, contributing to the ecological balance of the Vistula basin and the Baltic Sea, which is sensitive to eutrophication.