South East Wash

Polluted by sewage 39 times in 2025 - lasting 112 hours

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Totals for South East Wash in 2025

2 Sites polluted by Anglian Water

39 sewage dumps

112 hours duration

Sewage pollution map of South East Wash, showing 39 overflows in 2025

That's 4.67 days. 3.2 times a month, over the year

How does South East Wash compare?

South East Wash was the #67 most polluted shellfish area in England & Wales, by duration of sewage overflows, as reported by the water companies

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Pollution Summary 2025

Here are all the reported sewage overflow totals for South East Wash in 2025.

Accuracy Warning

We use data from the water companies, but we are seeing many anomalies that make us believe that location information is quite poor. The situation is likely far worse than reported here.

In particular: Totals on this page can differ from totals in the Ranked Shellfish page - number on this page are higher - this is due to a lack of standardization on shellfish area names. This page more accurately counts the differing names. For example "Solway" and "SOLWAY" are counted as different in the rankings, but correctly aggregated here.

Other CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s may also be located nearby, however the water companies claim that these do not affect the water quality here.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Anglian Water	Tidal River Great Ouse	KINGS LYNN GAYWOOD CSO	14	90	100
Anglian Water	Great Ouse	KING'S LYNN PURFLEET QUAY PS	25	21	95.6

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.

Analysing sewage pollution by the Water Industry

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Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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