Water Quality at RIOU

🇫🇷 Francecoastal43.549, 7.005

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.

B
Good

Safe to swim

This bathing water meets EU quality standards. Low levels of bacterial contamination within safe limits.

Based on 2024 bathing season data

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

Latest Measurements

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

Sample date: 2024-09-25

5-Year Quality Trend

G
2024
E
2023
E
2022
E
2021
E
2020
ExcellentGoodSufficientPoor

Season Monitoring Results

DateEnterococciE. coli
2024-09-2511061
2024-09-171515
2024-09-0917530
2024-09-041515
2024-08-273015
2024-08-191515
2024-08-141515
2024-08-061515
2024-07-291530
2024-07-241530
2024-07-161515
2024-07-081515
2024-07-031546
2024-06-251594
2024-06-171530
2024-06-121515
2024-06-04215161
2024-05-131515

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.