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East Wiltshire - 2025 Sewage

Polluted by sewage 7,313 hours in 2025 , monitoring offline 2,442 hours , potential overflows 245 hours

© OpenStreetMap contributors
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 East Wiltshire 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 East Wiltshire

Daily Data

Jan - 2,056 hours , 18 potential
Feb - 2,392 hours , 7 potential
Mar - 1,793 hours , 93 offline
Apr - 433 hours , 3 offline
May - 143 hours , 307 offline
Jun - 0 hours , 203 offline
Jul - 1 hours , 7 offline
Aug - 3 hours , 10 offline
Sept - 1 hours , 62 offline
Oct - 0 hours , 754 offline
Nov - 99 hours , 111 potential
Dec - 387 hours , 109 potential
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 SHREWTON STORM TANK River Till 97 2,154 h 18m -
Thames Water Marlborough STW Kennet 99 1,591 h 15m 223 h
Wessex Water TILSHEAD CAMP ROAD River Till 36 819 h 12m 7 h
Thames Water Wanborough STW Danes Brook 50 659 h 45m -
Wessex Water COLLINGBOURNE DUCIS River Bourne 79 645 h 47m 36 h
Wessex Water Unknown Unknown 19 315 h 48m -
Thames Water Wanborough STW Danes Brook 20 227 h 30m -
Wessex Water WISHFORD WILTON ROAD STORM TANK River Wylye 9 190 h 2m 2 h
Wessex Water PEWSEY SALISBURY ROAD STORM TANK River Avon 16 143 h 36m -
Wessex Water CHIRTON SMALL STREET Unnamed Watercourse 7 115 h -
Thames Water East Grafton STW River Dun 10 98 h 30m 529 h
Wessex Water NORTH NEWNTON River Avon 5 76 h 31m -
Thames Water Great Bedwyn STW Kennet And Avon Canal 6 73 h 38m 220 h
Wessex Water PEWSEY SALISBURY ROAD STORM TANK River Avon 5 43 h 45m -
Wessex Water ALL CANNINGS River Avon 5 40 h 32m -
Wessex Water MARDEN HIGH STREET River Avon 2 23 h 20m 2 h
Wessex Water PATNEY WEIR River Avon 4 20 h -
Wessex Water PEWSEY WILCOT LODGE River Avon 1 19 h 8m -
Wessex Water ALL CANNINGS River Avon 2 12 h 32m -
Wessex Water PEWSEY SWAN River Avon 2 10 h -
Thames Water East Grafton STW River Dun 1 8 h 30m 337 h
Wessex Water CHIRTON SMALL STREET Unnamed Watercourse 1 7 h 22m -
Thames Water Chisledon storm tanks N/A 1 4 h 18m 61 h
Thames Water Chisledon storm tanks N/A 1 3 h 14m -
Wessex Water NORTH NEWNTON River Avon 1 2 h 17m -
Wessex Water PATNEY WEIR River Avon 1 2 h 8m -
Wessex Water AMESBURY OFF CHURCH STREET STORM TANK Hampshire Avon 1 2 h 7m -
Wessex Water Unknown Unknown 1 1 h 44m 3 h
Thames Water London Road (Marlborough) SPS Kennet 2 1 h 15m 1,199 h
Thames Water Marlborough STW Kennet 1 0 h 30m -
Wessex Water PEWSEY SWAN River Avon 1 0 h 9m -
Wessex Water PEWSEY SALISBURY ROAD River Avon 0 0 h -
Wessex Water WISHFORD WILTON ROAD STORM TANK River Wylye 0 0 h -
Wessex Water MARDEN HIGH STREET River Avon 0 0 h -
Wessex Water TILSHEAD CAMP ROAD River Till 0 0 h -
Thames Water Draycot Foliat SPS River Ray 0 0 h -
Thames Water Draycot Foliat SPS River Ray 0 0 h -
Wessex Water AMESBURY OFF CHURCH STREET STORM TANK Hampshire Avon 0 0 h -
Wessex Water Unknown Unknown 0 0 h 0 h
Wessex Water PEWSEY WILCOT LODGE River Avon 0 0 h -
Wessex Water COLLINGBOURNE DUCIS River Bourne 0 0 h -
Wessex Water AMESBURY FLOWER LANE River Avon 0 0 h 1 h
Wessex Water SHREWTON STORM TANK River Till 0 0 h -
Thames Water London Road (Marlborough) SPS Kennet 0 0 h -
Wessex Water PEWSEY SALISBURY ROAD River Avon 0 0 h 1 h
Thames Water Ramsbury STW River Kennet 0 0 h -
Wessex Water RATFYN STORM TANK Hampshire Avon River 0 0 h -
Wessex Water AMESBURY FLOWER LANE River Avon 0 0 h 15 h
Wessex Water Unknown Unknown 0 0 h 38 h
Wessex Water RATFYN STORM TANK Hampshire Avon River 0 0 h 6 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

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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© 2020-2025 Top-Of-The-Poops CC-BY-SA 4.0,
© 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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