Water Quality at RIS

🇫🇷 Francecoastal48.091, -4.301

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
61cfu/100ml
Exc
Good
Suf
E. coli
110cfu/100ml
Exc
Good
Suf

Sample date: 2024-09-09

5-Year Quality Trend

E
2024
E
2023
N
2022
N
2021
P
2020
ExcellentGoodSufficientPoor

Season Monitoring Results

DateEnterococciE. coli
2024-09-0961110
2024-09-066115
2024-08-301530
2024-08-193015
2024-08-141515
2024-08-061530
2024-07-3077160
2024-07-249346
2024-07-18942600
2024-07-081515
2024-07-031515
2024-06-271577
2024-06-201515
2024-06-031593

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.