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Salisbury - Live Sewage

Polluted by sewage 11,762 hours in 2026 - That's 1.36 years , monitoring offline 7 hours , potential overflows 9 hours so far..

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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 Salisbury 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.

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Daily Data

Jan - 2,773 hours
Feb - 6,322 hours
Mar - 2,151 hours , 9 potential
Apr - 461 hours , 0 offline
May - 50 hours
Jun - 0 hours
Jul - 0 hours
Aug - 2 hours , 7 offline
Sept - 0 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Wessex Water HURDCOTT STORM TANK River Bourne 119 2,147h 15m 9 h
Wessex Water HANGING LANGFORD River Wylye Via A Reed Bed 65 1,504h 50m -
Wessex Water FOVANT STORM TANK Fovant Brook 59 1,163h 22m -
Wessex Water SALISBURY PETERSFINGER SOUTHAMPTON ROAD STORM TANK River Avon 49 1,017h 34m -
Wessex Water ALLINGTON OLD INN River Bourne 46 979h 11m -
Wessex Water HINDON INLET Groundwater Via Infilt System 52 791h 52m -
Wessex Water BARFORD ST MARTIN BURCOMBE STORM TANK River Nadder 41 771h 9m -
Wessex Water DOWNTON MOOT LANE STORM TANK Hampshire Avon, River 45 765h 32m -
Wessex Water Unknown Unknown 44 761h 9m -
Wessex Water HINDON THE DENE River Nadder 31 671h 36m -
Southern Water EAST GRIMSTEAD SSO - 115851 Groundwater/River Dun 27 576h 20m -
Wessex Water BARFORD ST MARTIN River Nadder 25 413h 5m -
Wessex Water TISBURY NADDER CLOSE PLAYING FIELDS River Nadder Via Sws 26 91h 34m -
Wessex Water HURDCOTT River Bourne 7 35h 30m -
Wessex Water SALISBURY BRIDGE STREET/HIGH STREET River Avon Via Sw Sewer 9 23h 50m -
Wessex Water SEMLEY INLET River Sem 11 18h 36m -
Southern Water REDLYNCH SSO - 115737 River Blackwater 2 17h 6m -
Wessex Water SALISBURY ENDLESS LANE/SCOTS LANE River Avon Via Sws 9 5h 26m -
Wessex Water Unknown Unknown 1 4h 47m -
Wessex Water CHILMARK River Nadder 1 2h 20m -
Wessex Water SALISBURY COLLEGE STREET NO XX River Avon Via Sws 1 0h 4m -
Southern Water WHITEPARISH SSO - 115449 River Blackwater 1 0h -
Wessex Water CHILMARK River Nadder 0 0h -
Wessex Water SALISBURY PETERSFINGER SOUTHAMPTON ROAD STORM TANK River Avon 0 0h -
Wessex Water IDMISTON River Bourne 0 0h -
Wessex Water HANGING LANGFORD River Wylye Via A Reed Bed 0 0h -
Wessex Water SEMLEY INLET River Sem 0 0h -
Wessex Water SALISBURY BRIDGE STREET/HIGH STREET River Avon Via Sw Sewer 0 0h -
Wessex Water BARFORD ST MARTIN BURCOMBE STORM TANK River Nadder 0 0h -
Wessex Water DOWNTON MOOT LANE STORM TANK Hampshire Avon, River 0 0h -
Wessex Water IDMISTON River Bourne 0 0h 7 h
Wessex Water TISBURY NADDER CLOSE PLAYING FIELDS River Nadder Via Sws 0 0h -
Wessex Water SALISBURY ENDLESS LANE/SCOTS LANE River Avon Via Sws 0 0h -
Wessex Water Unknown Unknown 0 0h -
Wessex Water FOVANT STORM TANK Fovant Brook 0 0h -
Wessex Water HINDON THE DENE River Nadder 0 0h -
Wessex Water HURDCOTT River Bourne 0 0h -
Southern Water REDLYNCH SSO - 115737 River Blackwater 0 0h -
Wessex Water BARFORD ST MARTIN River Nadder 0 0h -
Wessex Water HURDCOTT STORM TANK River Bourne 0 0h -
Wessex Water ALLINGTON OLD INN River Bourne 0 0h -
Southern Water EAST GRIMSTEAD SSO - 115851 Groundwater/River Dun 0 0h -
Wessex Water SALISBURY CHURCHILL GARDENS NEAR COLLEGE River Avon 0 0h -
Wessex Water HINDON INLET Groundwater Via Infilt System 0 0h -
Wessex Water SALISBURY CHURCHILL GARDENS NEAR COLLEGE River Avon 0 0h -
Wessex Water SALISBURY COLLEGE STREET NO XX River Avon Via Sws 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.