Komory Dabrowne Wastewater Treatment Plant, Gąsocin, Poland

Komory Dabrowne is a wastewater treatment plant located in Gąsocin, within the mazowieckie province of Poland. It serves a population of approximately 4,001 people, classifying it as a small agglomeration under Polish and EU regulations. The plant is situated in a rural area near the town of Sońsk. The plant provides secondary treatment, which is the minimum standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity is 7,550 m³/day, with an actual discharge volume of 570.48 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 Vistula River basin, which flows northward 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 waterways.

The plant discharges into small streams within the Vistula River basin, which ultimately flows into the Baltic Sea. This region is part of a sensitive catchment area where nutrient pollution from wastewater can contribute to eutrophication in the Baltic. The secondary treatment provided helps reduce organic load and nutrients, supporting the ecological balance of local water bodies and the downstream marine environment.