Golancz Wastewater Treatment Plant, Chawłodno, Wielkopolskie, Poland

The Golancz wastewater treatment plant is located in Chawłodno, within the Gołańcz municipality in the Wielkopolskie Voivodeship of Poland. It serves a population of 2,721 people, classifying it as a small agglomeration under Polish and EU regulations. The plant is situated inland, away from coastal areas, and its operations are part of the regional water management infrastructure. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity of 4,828 m³/day indicates the plant's ability to handle peak flows, while the actual discharge volume of 387.97 m³/day suggests a utilization rate well below capacity. This spare capacity may accommodate future population growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Baltic Sea via the Warta River and Oder River basins. The plant plays a role in protecting the region's surface waters from nutrient pollution, supporting aquatic ecosystems and downstream water quality. Its inland location reduces direct marine impact, but its discharge contributes to the overall nutrient load in the Baltic catchment area.

The plant discharges into local streams that are part of the Warta River basin, which flows into the Oder River and eventually reaches the Baltic Sea. The Baltic Sea is a semi-enclosed sea sensitive to eutrophication from nutrient inputs. The plant's secondary treatment helps reduce organic pollution but may not fully remove nutrients like nitrogen and phosphorus, which are concerns for the Baltic's ecological health. The surrounding area is agricultural, so the plant's discharge interacts with diffuse runoff in the watershed.