Lipiny Dolne Wastewater Treatment Plant | Lipiny Dolne-Kolonia, Poland

The Lipiny Dolne wastewater treatment plant is located in Lipiny Dolne-Kolonia, a village in the Lublin Voivodeship of southeastern Poland. It serves a small population of 115 residents, reflecting the rural character of the area. The plant is part of the municipal infrastructure managed by the local gmina (municipality) of Potok Górny. The facility provides secondary treatment, which is the standard biological treatment required under Polish and EU regulations for small agglomerations. With a designed capacity of 3,269 m³/day and a current discharge volume of 16.40 m³/day, the plant operates well below its capacity, indicating it is sized for future growth or seasonal peaks. The treatment process involves biological degradation of organic matter, followed by sedimentation. The treated effluent is discharged into local watercourses that ultimately drain into the San River basin, a tributary of the Vistula River, which flows into the Baltic Sea. The plant plays a key role in protecting local streams and groundwater from untreated sewage, supporting the ecological health of the region's rural landscape.

The plant discharges into small streams that feed into the San River, a major tributary of the Vistula River, which flows northward to the Baltic Sea. The local watershed is part of the Lublin Upland, characterized by agricultural land and scattered forests. The receiving waters support diverse aquatic life, including fish species such as barbel and chub, and are important for maintaining water quality in the Vistula basin. The plant's secondary treatment helps reduce nutrient loads, mitigating eutrophication risks downstream.