Zamch Wastewater Treatment Plant: Secondary Treatment for Rural Community in Lubelskie

The Zamch wastewater treatment plant is located in the village of Zamch, within gmina Obsza, powiat biłgorajski, województwo lubelskie, Poland. This small-scale facility serves a population of 175, reflecting its role in rural wastewater management. The plant operates with secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent below 2,000. The designed capacity of 6,215 m³/day indicates the plant is sized well above current load, allowing for future growth or seasonal fluctuations. The treated wastewater is discharged into local waterways that ultimately drain into the San River basin, a tributary of the Vistula River, which flows into the Baltic Sea. The plant helps protect the region's surface water quality and supports the ecological health of downstream aquatic habitats.

The plant discharges into small streams within the San River catchment, part of the larger Vistula River basin that drains into the Baltic Sea. This region supports diverse aquatic life and is important for maintaining water quality in the sensitive Baltic Sea ecosystem. The secondary treatment reduces organic pollutants and nutrients, mitigating eutrophication risks downstream.