Water quality tests are required to reopen the bathing area may also be delayed, as it is necessary to wait for the amount of pollutants in the water to decrease.
The quality requirements of natural bathing waters are regulated by a government decree. According to the guidelines prepared by the National Center for Public Health and Pharmacy based on this legislation, “The bathing ban can only be lifted if the Enterococcus count in at least two samples is below 330/100 ml, the Escherichia coli count is below 900/100 ml, and the cyanobacterial proliferation (water bloom) has clearly ceased.” Two negative laboratory tests are required for bathing to be permitted again.” says the official website of City of Szentendre on 1st August 2025 (Szentendre.hu)