Water Quality at GWISSELIER

🇫🇷 Francecoastal48.554, -4.708

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
46cfu/100ml
Exc
Good
Suf
E. coli
160cfu/100ml
Exc
Good
Suf

Sample date: 2024-09-11

5-Year Quality Trend

E
2024
E
2023
E
2022
E
2021
S
2020
ExcellentGoodSufficientPoor

Season Monitoring Results

DateEnterococciE. coli
2024-09-1146160
2024-09-03110140
2024-08-284661
2024-08-224615
2024-08-131530
2024-08-053015
2024-07-301515
2024-07-261530
2024-07-181515
2024-07-123015
2024-07-021515
2024-06-271515
2024-06-1915230
2024-05-301577

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.