North Somerset - Live Sewage

Polluted by sewage 2,538 hours in 2026 , monitoring offline 1,030 hours so far..

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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 North Somerset so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

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.

Totals for North Somerset in 2026

Sewage2,538 hours
Monitoring offline1,030 hours
Potential pollution0 hours
Storm overflows46

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Constituencies near North Somerset

Daily Data

Jan - 583 hours
Feb - 1,247 hours
Mar - 70 hours
Apr - 1 hours
May - 344 hours , 736 offline
Jun - 208 hours , 197 offline
Jul - 0 hours
Aug - 14 hours , 9 offline
Sept - 1 hours
Oct - 66 hours , 87 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
Wessex Water PORTBURY WHARF THE DROVE PORTBURY INLET Unknown 90 1,234h 52m -
Wessex Water BUTCOMBE STORM TANK Congresbury Yeo And Butcombe 44 1,010h 33m -
Wessex Water WRINGTON Congresbury Yeo 15 159h 34m -
Wessex Water KINGSTON SEYMOUR Unknown 14 43h 9m -
Wessex Water PORTISHEAD BLACK NORE (NAUTICAL SCHOOL) Severn Estuary 15 19h 21m 87 h
Wessex Water CLEVEDON LADYE BAY Bristol Channel 18 17h 40m -
Wessex Water PORTISHEAD PORTBURY DITCH OFF HARBOUR RD Portbury Ditch 6 14h 47m -
Wessex Water PORTISHEAD HILLSIDE ROAD REDCLIFF BAY River Severn 18 11h 32m -
Wessex Water PORTISHEAD HIGH STREET NR BUILDERS YARD Unknown 12 9h -
Wessex Water CLEVEDON MAIN Bristol Channel 1 5h 1m -
Wessex Water PORTISHEAD COOMBE/SLADE ROAD JUNCTION Portbury Ditch 9 3h 32m -
Wessex Water Unknown Unknown 1 3h 26m -
Wessex Water CLEVEDON THE BEACH Bristol Channel 3 2h 22m -
Wessex Water PORTISHEAD LAKE GROUNDS Estuary 2 1h 14m -
Wessex Water PORTISHEAD TOWN HARBOUR ROAD Portbury Ditch, 3 1h 9m -
Wessex Water PORTISHEAD POACHER HOTEL (ANCHOR HOTEL) Unknown 4 0h 32m 933 h
Wessex Water PORTISHEAD SLADE ROAD O/S XX Portbury Ditch 4 0h 32m -
Wessex Water PORTISHEAD TOWN HARBOUR ROAD Portbury Ditch, 0 0h -
Wessex Water WRINGTON WILTONS INLET Congressbury Yeo 0 0h -
Wessex Water PORTBURY DROVE Portbury Drove Rhyne 0 0h -
Wessex Water BUTCOMBE STORM TANK Congresbury Yeo And Butcombe 0 0h -
Wessex Water Unknown Unknown 0 0h -
Wessex Water PORTISHEAD SLADE ROAD O/S XX Portbury Ditch 0 0h -
Wessex Water BRISTOL OLD MEAD WALK NO X . Colliters Brook Via Sws 0 0h -
Wessex Water PORTISHEAD LAKE GROUNDS Estuary 0 0h -
Wessex Water PORTISHEAD COOMBE/SLADE ROAD JUNCTION Portbury Ditch 0 0h -
Wessex Water CLEVEDON MARINE PARADE Severn Estuary 0 0h 9 h
Wessex Water BRISTOL OLD MEAD WALK NO X . Colliters Brook Via Sws 0 0h -
Wessex Water PORTBURY DROVE Portbury Drove Rhyne 0 0h -
Wessex Water KINGSTON SEYMOUR Unknown 0 0h -
Wessex Water CLEVEDON PARNELL ROAD Land Yeo 0 0h -
Wessex Water PORTISHEAD BRAMPTON WAY Portbury Via Sws 0 0h -
Wessex Water PORTISHEAD PORTBURY DITCH OFF HARBOUR RD Portbury Ditch 0 0h -
Wessex Water PORTISHEAD BLACK NORE (NAUTICAL SCHOOL) Severn Estuary 0 0h -
Wessex Water PORTISHEAD HILLSIDE ROAD REDCLIFF BAY River Severn 0 0h -
Wessex Water CLEVEDON PARNELL ROAD Land Yeo 0 0h -
Wessex Water CLEVEDON OLD STREET O/S XX Land Yeo 0 0h -
Wessex Water PORTISHEAD HIGH STREET NR BUILDERS YARD Unknown 0 0h -
Wessex Water WRINGTON WILTONS INLET Congressbury Yeo 0 0h -
Wessex Water CLEVEDON MAIN Bristol Channel 0 0h -
Wessex Water PORTISHEAD POACHER HOTEL (ANCHOR HOTEL) Unknown 0 0h -
Wessex Water WRINGTON Congresbury Yeo 0 0h -
Wessex Water PORTBURY WHARF THE DROVE PORTBURY INLET Unknown 0 0h -
Wessex Water CLEVEDON THE BEACH Bristol Channel 0 0h -
Wessex Water CLEVEDON MARINE PARADE Severn Estuary 0 0h -
Wessex Water CLEVEDON LADYE BAY Bristol Channel 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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Analysing sewage pollution by the Water Industry

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