Chingford and Woodford Green was polluted by sewage 298 times in 2024
lasting 912 hours
- but monitoring was disabled in some locations, so could be more

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
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✔ means we have experimental daily data since 2023
Live data for Chingford and Woodford Green in 2025
So far this year (as of Apr 16, 2025, 6:30 PM) there has been 200 hours of sewage overflows
Totals for Chingford and Woodford Green in 2024
9 Sites polluted by Thames Water
298 sewage dumps
912 h duration
That's 1.27 months. 5.7 times a week, on average
Change Over Time
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Daily Data
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Chingford and Woodford Green, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.
Each CSO has a row, the most recent data is on the right hand side.
     Monitoring Online      Monitoring Offline      Polluting      Potentially Polluting      Unknown
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for Chingford and Woodford Green in 2024. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 3 of the total 12 CSO locations had reporting enabled for less than half the year, of which 3 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Thames Water To River Roding RAY LODGE ROAD 73 363 92.8
Thames Water Ching Brook BEECH HALL CRESCENT CSO 56 241 100
Thames Water Wells Brook PROSPECT ROAD CSO, 66 233 99.9
Thames Water Roding CHIGWELL ROAD, WOODFORD GREEN 81 45 91.05
Thames Water River Roding CSO AT HIGH ROAD 14 18 100
Thames Water Lee Chingford Storm Tanks 2 4 100
Thames Water River Roding KINGS AVENUE CSO 3 2 100
Thames Water River Roding HILLSIDE AVENUE CSO 2 1 100
Thames Water To River Roding THE BROADWAY 1 1 99.8
Thames Water Roding Snakes Lane 0 0 0
Thames Water River Roding BANCROFT RUGBY GROUND, 0 0 0
Thames Water River Roding WORCESTER CRESCENT CSO 0 0 0

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. This 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.