South Holland and The Deepings

Polluted by sewage 161 times in 2025 lasting 1,608 hours

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

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Live data for South Holland and The Deepings in 2026

So far this year (as of 26 Oct 2026, 02:30) there has been 3,081 hours of sewage overflows, from 22 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Sewage without rain in South Holland and The Deepings

On 14 occasions since December 2024, no rain fell anywhere in South Holland and The Deepings for days — and its CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s discharged anyway.

20 Mar - 21 Mar 2025 1 at once · 47h 4 Mar - 5 Mar 2026 1 at once · 42h 17 May - 19 May 2025 1 at once · 24h

Totals for South Holland and The Deepings in 2025

7 Sites polluted by Anglian Water
161 sewage dumps
1,608 hours duration
Sewage pollution map of South Holland and The Deepings
Sewage pollution map of South Holland and The Deepings: 161 spills in 2025, lasting 1,608 hours, by Anglian Water
That's 2.23 months. 3.1 times a week, on average

Change Over Time

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Pollution Summary 2025

Here are all the reported sewage overflow totals for South Holland and The Deepings 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 constituency 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 River Welland DEEPING WATER RECYCLING CENTRE 53 788 99.2
Anglian Water Green Bank Drn,New S. Eau Rive CROWLAND STW 29 460 99.6
Anglian Water Mill Drain DONINGTON WATER RECYCLING CENTRE 45 211 99.9
Anglian Water River Welland SPALDING STW 14 66 100
Anglian Water Holbeach River HOLBEACH WATER RECYCLING CENTRE 8 53 100
Anglian Water River Welland WELLAND ROAD SPS 4 14 100
Anglian Water River Nene SUTTON BRIDGE STW 8 12 100
Anglian Water River Welland SPALDING-ALBION STREET PS 0 0 100
Anglian Water River Welland SSO ST ANDREWS CHURCH 0 0 99.6

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.

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Analysing sewage pollution by the Water Industry

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© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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