Southend-on-Sea

Polluted by sewage 120 times in 2025 lasting 279 hours

Monitoring fell below 50% in some locations so could be more

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Totals for Southend-on-Sea in 2025

10 Sites polluted by Anglian Water

120 sewage dumps

279 hours duration

Sewage pollution map of Southend-on-Sea — Sewage pollution map of Southend-on-Sea: 279 hours in 2025

That's 1.66 weeks. 2.3 times a week, on average

Change Over Time

Constituency for Southend-on-Sea

Nearby Constituencies

Waterways in Southend-on-Sea

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Southend-on-Sea in 2025. 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 place 1 of the total 13 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Anglian Water	Thames Estuary	SOUTHEND SEWAGE WORKS	94	236	27.9
Anglian Water	Rayleigh East Brook	RAYLEIGH EAST STW	3	25	98.8
Anglian Water	Prittle Brook	SOUTHEND-PRINCE AVE (BELL PUB) CSO	7	6	100
Anglian Water	River Roach	ROCHFORD DEPOT PUMPING STATION	1	5	100
Anglian Water	Eastwood Brook	EASTWOOD PARK	6	3	100
Anglian Water	Prittle Brook	SOUTHEND- RIORY CRESCENT CSO	2	1	100
Anglian Water	River Thames	SEAVIEW ESTATE PS	3	0	100
Anglian Water	Prittle Brook	OVERFLOW OUTLET AT THE CIVIC CENTRE	2	0	100
Anglian Water	Prittle Brook	SOUTHEND - ROCHFORD ROAD CSO	1	0	100
Anglian Water	Prittle Brook	SOUTHEND 21-27 SHAKESPEARE AVE CSO	1	0	100
Anglian Water	Rayleigh Brook	RAYLEIGH - WYBURNS AVENUE PS	0	0	100
Anglian Water	Eastwood Brook	RES. DEVLPT	0	0	100
Anglian Water	Prittle Brook	PAVILION DRIVE CSO	0	0	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

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.

Top of the Poops

Analysing sewage pollution by the Water Industry

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