Water Quality at ESTELA-BARRANHA

🇵🇹 Portugalcoastal41.443, -8.780

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
1cfu/100ml
Exc
Good
Suf
E. coli
15cfu/100ml
Exc
Good
Suf

Sample date: 2024-09-02

5-Year Quality Trend

E
2024
E
2023
E
2022
E
2021
E
2020
ExcellentGoodSufficientPoor

Season Monitoring Results

DateEnterococciE. coli
2024-09-02115
2024-08-261515
2024-08-19115
2024-08-121515
2024-08-05115
2024-07-291515
2024-07-22677
2024-07-15130
2024-07-091515
2024-07-01130
2024-06-25215
2024-06-171515
2024-06-041515

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.