Protected beach at Czerniakowskie Lake in Warsaw’s Mokotów district is closed pending appeal after a negative water quality assessment cited microbiological risks.
Closure Announcement
Protected beach at Czerniakowskie Lake in Warsaw’s Mokotów district has been closed pending appeal after a negative assessment of water quality in terms of microbiological parameters, the State County Sanitary Inspector in the city of Warsaw reported. The ban is enforced under Water Law provisions and the Ministry of Health regulations.
Public Notice
The Mokotów District Office released a notice yesterday informing residents of the beach’s closure due to water microbiological parameters. Residents are advised to adhere to the bathing ban.
Location & Operating Season
The beach, located at 4 Jeziorna Street, operates from June 8 to September 14, and is organized by the Mokotów District Sports and Recreation Centre.
Water Quality Assessment Details
The August 18 assessment was based on results showing enterococci concentration of 1,225 CFU/100 ml (limit 400) and E. coli 179 CFU/100 ml (limit 1,000). A subsequent test is scheduled for August 25, 2025. Full notice PDF: https://sport.um.warszawa.pl/documents/63389179/110349846/HKN.903.10.15.2025++ocena+negatywna+(PDF, 143 KB)/4d99e767-89d2-9ca4-cd73-e88987d810e9?t=1755510330446
Official Statements
The Mokotów District Office and the District Sports and Recreation Centre issued a communication that the beach is closed pending appeal and urged compliance with the bathing ban. The decision is and remains in effect until positive results are obtained.
Recent Developments
Current data from the Bathing Service indicates seasonal fluctuations. On June 27, 2025, a bathing ban was imposed after exceedance of enterococci limits (606). Subsequent samples on July 11 and 28 were deemed acceptable, but the August 18 review again recorded exceedances and reinstated the ‘red flag’.
Legal Basis
The Warsaw Chapter of the County Sanitary and Epidemiological Station published Communication No. 6 stating that the water at Jeziorko Czerniakowskie does not meet requirements and is unsuitable for bathing, citing legal basis and sampling date (August 11, 2025).
Management Responsibilities
The District Sports and Recreation Centre manages the beach, handling ongoing signage and on-site information. The district’s information platforms posted a concise notice confirming the closure of the bathing zone until parameters improve and the sanitary verification is positive.
Monitoring Standards
The Bathing Service, run by the Main Sanitary Inspectorate, listed standard limits for bathing waters: E. coli – 1,000 CFU/100 ml, enterococci – 400 CFU/100 ml. The current status and the date of the next tests are shown on the service’s beach profile pages.
Field Signage
The beach is equipped with signage compliant with regulations (WOPR flagmast, informational signs). Until appeal, swimming in the designated water zone is prohibited.
Kaynaklar: Gazeta, https://sport.um.warszawa.pl/documents/63389179/110349846/HKN.903.10.15.2025++ocena+negatywna+(PDF, 143 KB)/4d99e767-89d2-9ca4-cd73-e88987d810e9?t=1755510330446



