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Cherwell polluted by sewage 68 times in 2025 - lasting 755 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
Totals for Cherwell in 2025
2 Sites polluted by Thames Water
68 sewage dumps
755 h duration
That's 4.49 weeks. 1.3 times a week, on average
Constituencies along Cherwell
Places along Cherwell

Pollution Summary 2025

Here are all the reported sewage overflow totals for Cherwell in 2025. Sometimes sewage can be being dumped for months at a time.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Thames Water Cherwell CROPREDY STW, WILLIAMSCOTT ROAD, CR 35 452 99.8
Thames Water Cherwell HEYFORD WASTEWATER TREATMENT WORKS 33 302 95.3
Thames Water Cherwell Fergusson Road, Banbury 0 0 100

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.