Water Quality at Otok Katarina Prema marini

🇭🇷 Croatiacoastal45.078, 13.634

Water Quality Data

This data reflects historical water quality classifications and is not a real-time safety assessment. Water quality can change rapidly due to weather, sewage events, or algae blooms. Always check with local authorities or lifeguard stations before swimming.

A+
Excellent

Safe to swim

This bathing water meets the highest EU water quality standards. Very low levels of bacterial contamination detected.

Based on 2024 bathing season data

Source: European Environment Agency / EU Bathing Water Directive (2006/7/EC)

Latest Measurements

Intestinal Enterococci
4cfu/100ml
Exc
Good
Suf
E. coli
10cfu/100ml
Exc
Good
Suf

Sample date: 2024-09-30

5-Year Quality Trend

E
2024
E
2023
E
2022
E
2021
E
2020
ExcellentGoodSufficientPoor

Season Monitoring Results

DateEnterococciE. coli
2024-09-30410
2024-09-1636
2024-08-29312
2024-08-1677
2024-08-024853
2024-07-19113
2024-07-041018
2024-06-2034
2024-06-0733
2024-05-2735

Values in cfu/100ml (colony-forming units per 100ml)

What are E. coli and enterococci?

E. coli and intestinal enterococci are indicator bacteria for fecal contamination. Their presence suggests sewage or animal waste in the water, which may contain harmful pathogens. The EU Bathing Water Directive (2006/7/EC) classifies water quality based on these two indicators.