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River Cherwell polluted by sewage 226 times in 2025 - lasting 2,795 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
Totals for River Cherwell in 2025
7 Sites polluted by Thames Water
226 sewage dumps
2,795 h duration
That's 3.88 months. 4.3 times a week, on average
Constituencies along River Cherwell
Places along River Cherwell

Pollution Summary 2025

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

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Thames Water River Cherwell WILLINGALE WWTW 55 1,077 96.4
Thames Water River Cherwell EYDON WASTEWATER TREATMENT WORKS 60 872 99.4
Thames Water River Cherwell WARDINGTON SEWAGE PUMPING STATION 55 357 98.9
Thames Water River Cherwell BANBURY WASTEWATER TREATMENT WORKS 26 313 95.6
Thames Water River Cherwell WOODFORD HALSE SPS 15 141 100
Thames Water River Cherwell CHIPPING WARDEN WWTW 11 28 87.7
Thames Water River Cherwell LOWER CHERWELL ST WPS, BANBURY 4 4 100

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

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.