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Great Yarmouth - 2025 Sewage

Polluted by sewage 2,717 hours in 2025 , monitoring offline 8,804 hours , potential overflows 2 hours

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

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Great Yarmouth for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Constituencies near Great Yarmouth

Daily Data

Jan - 32 hours
Feb - 34 hours
Mar - 0 hours
Apr - 7 hours
May - 38 hours
Jun - 20 hours
Jul - 93 hours , 110 offline
Aug - 6 hours , 1,468 offline
Sept - 31 hours , 1,440 offline
Oct - 53 hours , 2 potential
Nov - 1,765 hours , 2,539 offline
Dec - 635 hours , 1,707 offline
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Anglian Water Caister - Pump Lane Water Recycling Centre North Sea 78 693h 31m -
Anglian Water GT YARMOUTH-TAR WORKS RD NEWSM Tidal River Bure 51 541h 3m 1 h
Anglian Water GT YARMOUTH-GARRISON RD SP Tidal River Bure 48 527h 22m 1 h
Anglian Water CAISTER-HEADWORKS PS To Marsh Drain System 33 517h 23m -
Anglian Water Caister - Pump Lane Water Recycling Centre North Sea 17 183h 57m 1 h
Anglian Water GT YARMOUTH SUFFLING RD SP Tidal River Yare 6 96h 7m 0 h
Anglian Water GORLESTON-BAKER ST SP Tidal River Yare 16 55h 26m 3,147 h
Anglian Water CAISTER-HEADWORKS PS To Marsh Drain System 6 20h 1m -
Anglian Water GT YARMOUTH-TAR WORKS RD NEWSM Tidal River Bure 11 18h 9m -
Anglian Water GT YARMTH-N DENES/JELLICO R SP Tidal River Bure 11 11h 14m -
Anglian Water GT YARMOUTH-TOWN HALL SP Tidal River Yare 16 9h 37m 1 h
Anglian Water Great Yarmouth Bryants Quay Pumping Station Tidal River Yare 14 9h 32m 3,017 h
Anglian Water GT YARMOUTH-GARRISON RD SP Tidal River Bure 7 9h 15m -
Anglian Water GT YARMTH-STOWN SUFFOLK RD SP Tidal River Yare 9 5h 26m 313 h
Anglian Water MARTHAM HALL ROAD SPS Ormesby Broad 1 5h -
Anglian Water GT YARMOUTH SUFFLING RD SP Tidal River Yare 10 4h 30m 1 h
Anglian Water GT YARMTH-N DENES/JELLICO R SP Tidal River Bure 2 3h 34m -
Anglian Water Gt Yarmouth Gorleston/Brush Bend Combined Sewer Overflow River Yare 2 2h 28m -
Anglian Water Gt Yarmouth Gorleston/Brush Bend Combined Sewer Overflow River Yare 2 2h 0 h
Anglian Water GT YARMOUTH-TOWN HALL SP Tidal River Yare 3 1h 42m -
Anglian Water Great Yarmouth Boundary Road Pumping Station Tidal River Yare 1 0h 23m -
Anglian Water GT YARMTH-STOWN SUFFOLK RD SP Tidal River Yare 0 0h 0 h
Anglian Water RUNHAM-SIDE GATE RD SP Tidal River Bure 0 0h -
Anglian Water Great Yarmouth Boundary Road Pumping Station Tidal River Yare 0 0h 0 h
Anglian Water GORLESTON-BAKER ST SP Tidal River Yare 0 0h 1,160 h
Anglian Water RUNHAM-SIDE GATE RD SP Tidal River Bure 0 0h -
Anglian Water MARTHAM HALL ROAD SPS Ormesby Broad 0 0h -
Anglian Water Great Yarmouth Bryants Quay Pumping Station Tidal River Yare 0 0h 1,160 h

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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