Harmful bacteria 'highest in summer' in Windermere

Published: 8/19/2025
Harmful bacteria 'highest in summer' in Windermere
Harmful levels of E.coli and IE bacteria have been found in Windermere, England's largest lake, during the summer months, potentially indicating sewage pollution. A citizen science project called the Big Windermere Survey revealed concerning levels of illness-causing bacteria at popular swimming and watersports spots. Campaigners are urging authorities to take decisive action to address the water quality issues in Windermere, a cherished site in the Lake District attracting millions of visitors annually. Defra has committed to improving water quality standards to protect the lake's ecosystem and rare species like Arctic char.