Chelsea and Fulham was polluted by sewage 142 times in 2024
lasting 1,045 hours

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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 Chelsea and Fulham in 2025
So far this year (as of Apr 16, 2025, 6:15 PM) there has been 0 hours of sewage overflows
Totals for Chelsea and Fulham in 2024
6 Sites polluted by Thames Water
142 sewage dumps
1,045 h duration
That's 1.45 months. 2.7 times a week, on average
Change Over Time
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Waterways in Chelsea and Fulham
Daily Data
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Chelsea and Fulham, 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 Chelsea and Fulham 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 0 of the total 6 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Thames Water River Thames SLOANE STREET, RANELAGH GDNS, LONDO 97 948 99.5
Thames Water River Thames COUNTERS CREEK, LOTS ROAD PS, LONDO 21 71 100
Thames Water River Thames SMITH STREET, LONDON 16 13 77.1
Thames Water Thames Tidal CHELSEA, LONDON SW10 1 6 96.2
Thames Water River Thames CHURCH STREET SEWER, LONDON 4 3 100
Thames Water River Thames QUEEN STREET, LONDON 3 1 99.5

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.