R0kiciny Wastewater Treatment Plant, Rokiciny, Poland

The R0kiciny wastewater treatment plant is located in Rokiciny, a town in the powiat tomaszowski of województwo łódzkie, Poland. The facility serves a population of approximately 1,340 residents, classifying it as a small-scale municipal treatment plant within the Polish wastewater infrastructure. The plant operates at the secondary treatment level, which is the standard required under Polish regulations implementing the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent (PE) between 2,000 and 15,000. Although the designed capacity is 2,244 m³/day, the actual discharge volume is 191.06 m³/day, indicating that the plant is operating well below its design capacity. The treated effluent is discharged into the local watershed, which ultimately drains into the Pilica River basin and then into the Vistula River, the longest river in Poland. The Vistula flows northward into the Baltic Sea. The plant plays a role in protecting the water quality of these downstream water bodies, which support diverse aquatic life and are important for regional ecology.

The treated wastewater from R0kiciny enters the local drainage network that feeds into the Pilica River, a tributary of the Vistula River. The Vistula flows through central Poland and discharges into the Baltic Sea via the Gdańsk Bay. This watershed supports a variety of fish species and provides habitat for migratory birds. The secondary treatment level helps reduce organic pollutants and suspended solids, mitigating eutrophication risks in the Baltic Sea, which is sensitive to nutrient loading.