Moszczenica Wastewater Treatment Plant, Moszczenica, Poland

The Moszczenica wastewater treatment plant is located in the village of Moszczenica, in the małopolskie province of southern Poland. It serves a small population of 1,320 residents, reflecting its role in a rural community. The plant is currently closed, and its operational status indicates it is no longer active. The plant provided 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 between 2,000 and 15,000. Although the plant's population served is below this threshold, secondary treatment ensures significant reduction of organic matter and suspended solids before discharge. The designed capacity of 390 m³/day suggests the plant was sized to handle peak flows from the local area. The treated effluent from the plant would have been discharged into a local watercourse, likely a tributary of the Ropa River, which flows into the Wisłoka River and eventually the Vistula River, reaching the Baltic Sea. The plant's location inland and away from the coast means its discharge contributes to the freshwater ecosystem, supporting aquatic life and downstream water quality in the Vistula basin.

The Moszczenica plant discharges into the local watershed, which drains into the Ropa River, a tributary of the Wisłoka River. The Wisłoka flows into the Vistula River, Poland's longest river, which empties into the Baltic Sea via the Vistula Lagoon. The surrounding area is characterized by rural and agricultural land use, and the water bodies support diverse aquatic life, including fish species such as brown trout and grayling. The plant's secondary treatment helps protect these ecosystems from excessive nutrient and organic pollution.