East Wiltshire - 2025 Sewage

Polluted by sewage 7,339 hours in 2025

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

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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.

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Constituencies near East Wiltshire

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for East Wiltshire, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

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Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Total Duration (days)
Wessex Water SHREWTON STORM TANK River Till 97 2,154 h 18m 89.75
Thames Water Marlborough STW Kennet 99 1,591 h 15m 66.29
Wessex Water TILSHEAD CAMP ROAD River Till 36 826 h 32m 34.42
Wessex Water COLLINGBOURNE DUCIS River Bourne 79 664 h 3m 27.67
Thames Water Wanborough STW Danes Brook 50 659 h 45m 27.46
Wessex Water Unknown Unknown 19 315 h 48m 13.12
Thames Water Wanborough STW Danes Brook 20 227 h 30m 9.46
Wessex Water WISHFORD WILTON ROAD STORM TANK River Wylye 9 190 h 2m 7.92
Wessex Water PEWSEY SALISBURY ROAD STORM TANK River Avon 16 143 h 36m 5.96
Wessex Water CHIRTON SMALL STREET Unnamed Watercourse 7 115 h 4.79
Thames Water East Grafton STW River Dun 10 98 h 30m 4.08
Wessex Water NORTH NEWNTON River Avon 5 76 h 31m 3.17
Thames Water Great Bedwyn STW Kennet And Avon Canal 6 74 h 12m 3.08
Wessex Water PEWSEY SALISBURY ROAD STORM TANK River Avon 5 43 h 45m 1.79
Wessex Water ALL CANNINGS River Avon 5 40 h 32m 1.67
Wessex Water MARDEN HIGH STREET River Avon 2 23 h 20m 0.96
Wessex Water PATNEY WEIR River Avon 4 20 h 0.83
Wessex Water PEWSEY WILCOT LODGE River Avon 1 19 h 8m 0.79
Wessex Water ALL CANNINGS River Avon 2 12 h 32m 0.5
Wessex Water PEWSEY SWAN River Avon 2 10 h 0.42
Thames Water East Grafton STW River Dun 1 8 h 30m 0.33
Wessex Water CHIRTON SMALL STREET Unnamed Watercourse 1 7 h 22m 0.29
Thames Water Chisledon storm tanks N/A 1 4 h 18m 0.17
Thames Water Chisledon storm tanks N/A 1 3 h 14m 0.12
Wessex Water NORTH NEWNTON River Avon 1 2 h 17m 0.08
Wessex Water PATNEY WEIR River Avon 1 2 h 8m 0.08
Wessex Water AMESBURY OFF CHURCH STREET STORM TANK Hampshire Avon 1 2 h 7m 0.08
Wessex Water Unknown Unknown 1 1 h 44m 0.04
Thames Water London Road (Marlborough) SPS Kennet 2 1 h 15m 0.04
Thames Water Marlborough STW Kennet 1 0 h 30m 0
Wessex Water PEWSEY SWAN River Avon 1 0 h 9m 0
Wessex Water AMESBURY FLOWER LANE River Avon 0 0 h 0
Wessex Water TILSHEAD CAMP ROAD River Till 0 0 h 0
Wessex Water Unknown Unknown 0 0 h 0
Wessex Water AMESBURY OFF CHURCH STREET STORM TANK Hampshire Avon 0 0 h 0
Thames Water Ramsbury STW River Kennet 0 0 h 0
Wessex Water PEWSEY WILCOT LODGE River Avon 0 0 h 0
Wessex Water SHREWTON STORM TANK River Till 0 0 h 0
Wessex Water COLLINGBOURNE DUCIS River Bourne 0 0 h 0
Wessex Water Unknown Unknown 0 0 h 0
Wessex Water PEWSEY SALISBURY ROAD River Avon 0 0 h 0
Wessex Water MARDEN HIGH STREET River Avon 0 0 h 0
Thames Water London Road (Marlborough) SPS Kennet 0 0 h 0
Wessex Water WISHFORD WILTON ROAD STORM TANK River Wylye 0 0 h 0
Wessex Water RATFYN STORM TANK Hampshire Avon River 0 0 h 0
Wessex Water RATFYN STORM TANK Hampshire Avon River 0 0 h 0

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

Some data reproduced under Open Government Licence

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