Canvey Island

Polluted by sewage 67 times in 2025 lasting 338 hours

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Totals for Canvey Island in 2025

7 Sites polluted by Anglian Water

67 sewage dumps

338 hours duration

Sewage pollution map of Canvey Island — Sewage pollution map of Canvey Island: 338 hours in 2025

That's 2.01 weeks. 1.3 times a week, on average

Change Over Time

Constituency for Canvey Island

Nearby Constituencies

Waterways in Canvey Island

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Canvey Island 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Anglian Water	Knightswick Dyke	NEVADA ROAD CSO	16	96	100
Anglian Water	Thames Estuary	CANVEY ISLAND WRC	26	82	97.3
Anglian Water	Hill Hall Dyke	DYKE CRESCENT CSO	14	75	100
Anglian Water	Drain-To Tidal Water	CANVEY - NEW ROAD SP	3	48	98.2
Anglian Water	Knightswick Dyke	CANVEY - NEVADA RD/HIGH ST PS	6	32	100
Anglian Water	River Thames	CANVEY ISLAND - FURTHERWICK ROAD PS	1	4	100
Anglian Water	River Thames	POINT ROAD PUMPING STATION	1	0	100
Anglian Water	Drain-Totidal Water	CANVEY - CHAMPLAIN AVENUE PS	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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