Jozefow Wastewater Treatment Plant, Otwock, Poland - Advanced Treatment, Now Closed

The Jozefow wastewater treatment plant is located in Otwock, within the Mazowieckie voivodeship of Poland. It was designed to serve the local population with a capacity of 18,000 cubic meters per day, reflecting its role in managing municipal wastewater in the region. The plant employed advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for sensitive areas. Although the facility is now closed, its advanced treatment level indicates it was equipped to reduce nutrients and protect water quality in the downstream environment. The plant's discharge likely entered the Świder River, a tributary of the Vistula, which flows through central Poland into the Baltic Sea. The Vistula basin supports diverse aquatic life and is an important ecological corridor. The advanced treatment helped minimize nutrient loading and safeguard the river's ecological health.

The plant is situated near the Świder River, a tributary of the Vistula River, which ultimately drains into the Baltic Sea. The Vistula basin is ecologically significant, supporting diverse fish species and migratory birds. Advanced treatment at this plant would have helped reduce nutrient pollution, protecting downstream water quality and aquatic habitats.