City of Westminster

Polluted by sewage 545 times in 2024 lasting 3,259 hours

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Totals for City of Westminster in 2024

19 Sites polluted by Thames Water

545 sewage dumps

3,259 hours duration

That's 4.53 months. On average 1.5 times a day

Change Over Time

Waterways in City of Westminster

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Pollution Summary 2024

Here are all the reported sewage overflow totals for City of Westminster 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	River Thames	BRIXTON STORM RELIEF SEWER, LONDON	101	1,172	93.4
Thames Water	River Thames	SLOANE STREET, RANELAGH GDNS, LONDO	97	948	99.5
Thames Water	River Thames	SW STORM RELIEF SEWER, LONDON	38	409	98.9
Thames Water	River Thames	HEATH WALL PS, LONDON	39	136	100
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	River Thames	WESTERN PS LOW LEVEL SEWER, LONDON	18	73	99.9
Thames Water	Tidal Thames	Low Level 1 N, Grosvenor Ditch, Mil	26	66	88.5
Thames Water	River Thames	HORSEFERRY ROAD SEWER, LONDON	17	46	98.5
Thames Water	River Thames	NORTHUMBERLAND STREET, LONDON	16	37	98.8
Thames Water	Tidal Thames	Temple Place, Essex Street	13	29	100
Thames Water	River Thames	REGENT STREET, LONDON	13	28	99.7
Thames Water	River Thames	WOOD STREET, LONDON	9	23	85.7
Thames Water	River Thames	NORFOLK STREET, LONDON	10	22	99.8
Thames Water	River Thames	KINGS SCHOLARS POND SEWER, LONDON	9	19	99.9
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	SAVOY STREET, LONDON	5	1	97.3
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. 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.

Analysing sewage pollution by the Water Industry

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City of Westminster Polluted by sewage 545 times in 2024 lasting 3,259 hours

City of Westminster