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South Suffolk - 2025 Sewage

Polluted by sewage 3,529 hours in 2025 , monitoring offline 2,278 hours

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

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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 South Suffolk 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 South Suffolk

Daily Data

Jan - 297 hours
Feb - 46 hours
Mar - 5 hours
Apr - 19 hours
May - 7 hours
Jun - 18 hours
Jul - 67 hours
Aug - 8 hours , 680 offline
Sept - 37 hours , 684 offline
Oct - 49 hours , 58 offline
Nov - 2,399 hours , 85 offline
Dec - 570 hours , 744 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 IPSWICH-CLIFF QUAY RAEBURN ST Tidal River Orwell 57 623h 50m -
Anglian Water HOLBROOK STW Holbrook Stream 51 574h 57m -
Anglian Water IPSWICH-CLIFF QUAY STW (SOUTH EASTERN AREA SEWER CSO) Tidal River Orwell 55 554h -
Anglian Water Sudbury Great Eastern Road Terminal Pumping Station River Stour 39 523h 9m -
Anglian Water LAVENHAM STW Lavenham Brook River Brett 25 510h -
Anglian Water Sudbury Water Recycling Centre River Stour 11 205h 44m -
Anglian Water IPSWICH-CLIFF QUAY STW (EASTERN AREA SEWER CSO) Tidal River Orwell 27 87h 54m -
Anglian Water HADLEIGH STW River Brett 4 45h 41m -
Anglian Water HADLEIGH STW River Brett 3 43h 43m -
Anglian Water GLEMSFORD STW River Glem 4 42h 57m -
Anglian Water BOXFORD STW River Box 5 38h 9m -
Anglian Water LAWSHALL-HARROWS TRIANGLE SP River Lark 4 32h 14m -
Anglian Water IPSWICH-CLIFF QUAY RAEBURN ST Tidal River Orwell 8 31h 13m -
Anglian Water HOLBROOK STW Holbrook Creek Estuary Stour 6 26h 27m -
Anglian Water LAVENHAM STW Lavenham Brook River Brett 7 25h 43m -
Anglian Water WOOLVERSTONE-MARINA TPS River Orwell 9 24h 35m 58 h
Anglian Water ELMSETT STW Utray Belstead Brook 7 21h 25m -
Anglian Water SPROUGHTON-DAUNDY CLOSE TPS (ELTON PARK PS) River Gipping 19 18h 59m -
Anglian Water Sudbury Great Eastern Road Terminal Pumping Station River Stour 4 15h -
Anglian Water LAWSHALL-HARROWS TRIANGLE SP River Lark 2 13h 13m -
Anglian Water IPSWICH-CLIFF QUAY STW (SOUTH EASTERN AREA SEWER CSO) Tidal River Orwell 7 12h -
Anglian Water BOXFORD STW River Box 2 11h 14m -
Anglian Water ELMSETT STW Utray Belstead Brook 1 7h 2m -
Anglian Water GLEMSFORD-SKATES HILL SP Unnamed River Stour 3 6h 45m -
Anglian Water SPROUGHTON-DAUNDY CLOSE TPS (ELTON PARK PS) River Gipping 5 6h 6m -
Anglian Water LAVENHAM STW PS Lavenham Brook 1 5h 45m -
Anglian Water LAVENHAM STW PS Lavenham Brook 1 4h 45m -
Anglian Water HADLEIGH STW River Brett 2 3h 31m -
Anglian Water East Bergholt WRC Gosnalls Brook River Stour 2 3h 17m 1,365 h
Anglian Water HOLBROOK STW Holbrook Stream 4 3h 10m -
Anglian Water SHOTLEY-OVERHALL FM STW River Orwell T 3 2h 14m -
Anglian Water Sudbury The Croft CSO River Stour 4 1h 15m -
Anglian Water Sudbury Bailey and Coates Combined Sewer Overflow R Stour 3 1h -
Anglian Water East Bergholt WRC Gosnalls Brook River Stour 1 0h 56m 853 h
Anglian Water Brantham Factory Lane OV River Stour 3 0h 45m -
Anglian Water Monks Eleigh WRC River Brett 1 0h 29m -
Anglian Water SHOTLEY-OVERHALL FM STW River Orwell T 1 0h 13m -
Anglian Water GLEMSFORD-SKATES HILL SP Unnamed River Stour 1 0h 2m -
Anglian Water HOLBROOK STW Holbrook Creek Estuary Stour 0 0h -
Anglian Water IPSWICH-CLIFF QUAY STW (EASTERN AREA SEWER CSO) Tidal River Orwell 0 0h -
Anglian Water GREAT CORNARD STW Cornard Black Brook 0 0h -
Anglian Water SUDBURY-CORNARD RD SP River Stour 0 0h -
Anglian Water CHELSWORTH-CAKEBRIDGE LA SP River Brett 0 0h -
Anglian Water GT WALDINGFIELD-FOLLEY RD SP River Box 0 0h -
Anglian Water Monks Eleigh WRC River Brett 0 0h -
Anglian Water WOOLVERSTONE-MARINA TPS River Orwell 0 0h -
Anglian Water CAPEL ST MARY-PARKINS CL YD SP Dodnash Brook 0 0h -
Anglian Water BOXTED-COTTAGE (SUFFOLK) STW Glem - Lower 0 0h -
Anglian Water Sudbury Water Recycling Centre River Stour 0 0h -
Anglian Water BRANTHAM SCHOOL LANE SP River Stour 0 0h -
Anglian Water GT WALDINGFIELD-FOLLEY RD SP River Box 0 0h -
Anglian Water GREAT WENHAM STW Stutton Brook 0 0h -
Anglian Water Brantham Factory Lane OV River Stour 0 0h -
Anglian Water CHELSWORTH-CAKEBRIDGE LA SP River Brett 0 0h -
Anglian Water Sudbury Bailey and Coates Combined Sewer Overflow R Stour 0 0h -
Anglian Water GREAT CORNARD STW Cornard Black Brook 0 0h -
Anglian Water SUDBURY-CORNARD RD SP River Stour 0 0h -
Anglian Water HADLEIGH STW River Brett 0 0h -
Anglian Water Sudbury The Croft CSO River Stour 0 0h -
Anglian Water BOXFORD-STONE ST TPS River Box 0 0h -

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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© 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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