Salisbury - Live Sewage

Polluted by sewage 11,890 hours in 2026 - That's 1.38 years , monitoring offline 34 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

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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.

Totals for Salisbury in 2026

Sewage11,890 hours
Monitoring offline34 hours
Potential pollution9 hours
Storm overflows46

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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 - 5 hours
Oct - 123 hours , 27 offline
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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 62 1,189h 24m -
Wessex Water SALISBURY PETERSFINGER SOUTHAMPTON ROAD STORM TANK River Avon 52 1,040h 22m -
Wessex Water ALLINGTON OLD INN River Bourne 46 979h 11m -
Wessex Water HINDON INLET Groundwater Via Infilt System 59 807h 47m -
Wessex Water Unknown Unknown 51 801h 3m -
Wessex Water DOWNTON MOOT LANE STORM TANK Hampshire Avon, River 47 773h 52m -
Wessex Water BARFORD ST MARTIN BURCOMBE STORM TANK River Nadder 41 771h 9m -
Wessex Water HINDON THE DENE River Nadder 32 672h 20m -
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 30 100h 6m -
Wessex Water HURDCOTT River Bourne 7 35h 30m -
Wessex Water SALISBURY BRIDGE STREET/HIGH STREET River Avon Via Sw Sewer 11 25h 6m -
Wessex Water SEMLEY INLET River Sem 14 20h 52m -
Southern Water REDLYNCH SSO - 115737 River Blackwater 3 18h 47m -
Wessex Water SALISBURY ENDLESS LANE/SCOTS LANE River Avon Via Sws 11 6h 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 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 SALISBURY BRIDGE STREET/HIGH STREET River Avon Via Sw Sewer 0 0h -
Wessex Water TISBURY NADDER CLOSE PLAYING FIELDS River Nadder Via Sws 0 0h -
Wessex Water Unknown Unknown 0 0h -
Wessex Water FOVANT STORM TANK Fovant Brook 0 0h -
Wessex Water BARFORD ST MARTIN River Nadder 0 0h -
Wessex Water HINDON INLET Groundwater Via Infilt System 0 0h -
Wessex Water CHILMARK River Nadder 0 0h -
Wessex Water SEMLEY INLET River Sem 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 34 h
Wessex Water SALISBURY ENDLESS LANE/SCOTS LANE River Avon Via Sws 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 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 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.