Rejowiec Wastewater Treatment Plant, Wólka Rejowiecka, Poland

The Rejowiec wastewater treatment plant is located in Wólka Rejowiecka, a village in the gmina of Rejowiec, Chełm County, Lublin Voivodeship, Poland. It serves a small population of 162 people, reflecting its role in a rural community. The plant operates under Polish regulations that transpose the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for wastewater treatment based on agglomeration size. The plant provides secondary treatment, which is the minimum required under the EU directive for freshwater discharges from agglomerations of this scale. It has a designed capacity of 4373 m³/day, though current discharge volume is 23.10 m³/day, indicating significant spare capacity. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into local watercourses that eventually drain into the Bug River basin, part of the Vistula River catchment flowing into the Baltic Sea. The plant's operation helps protect the local aquatic environment and downstream ecosystems from untreated sewage, supporting water quality in the region.

The plant discharges into small streams that feed into the Bug River, a major tributary of the Vistula River. The Vistula flows northward through Poland into the Baltic Sea. The local watershed supports diverse aquatic life and is part of an important ecological corridor. The plant's secondary treatment reduces organic pollution, safeguarding water quality in this rural area.