City and County of the City of London

Polluted by sewage 295 times in 2024 lasting 480 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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Totals for City and County of the City of London in 2024

12 Sites polluted by Thames Water
295 sewage dumps
480 hours duration
That's 20 days. 5.7 times a week, on average

Change Over Time

Waterways in City and County of the City of London

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Pollution Summary 2024

Here are all the reported sewage overflow totals for City and County of the City of London 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 locality all the declared CSOs appeared to have monitoring enabled for more than 50% of the year

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Thames Water Tidal Thames PAULS PIER COMBINED SEWER OVERFLOW 66 118 100
Thames Water River Thames FLEET MAIN LINE SEWER, LONDON 48 103 99.67
Thames Water Thames NIGHTINGALE LANE CSO 44 52 99.9
Thames Water River Thames NORTHUMBERLAND STREET, LONDON 16 37 98.8
Thames Water River Thames IRONGATE SEWER, LONDON 35 34 94.5
Thames Water River Thames LOWER THAMES STREET, BEER LANE, LON 35 31 100
Thames Water River Thames SHAD, THAMES PS, LONDON 12 29 100
Thames Water Tidal Thames Temple Place, Essex Street 13 29 100
Thames Water River Thames NORFOLK STREET, LONDON 10 22 99.8
Thames Water Tidal Thames LONDON BRIDGE CSO 9 16 100
Thames Water River Thames SAVOY STREET, LONDON 5 1 97.3
Thames Water River Thames GOSWELL STREET, S. BRANCH SEWER, LO 2 1 99.9

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.

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