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Christchurch - 2025 Sewage

Polluted by sewage 346 hours in 2025 , monitoring offline 973 hours

© OpenStreetMap contributors
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 Christchurch 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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Daily Data

Jan - 148 hours , 1 offline
Feb - 41 hours
Mar - 0 hours , 6 offline
Apr - 2 hours , 1 offline
May - 0 hours
Jun - 9 hours , 9 offline
Jul - 0 hours , 5 offline
Aug - 8 hours , 16 offline
Sept - 6 hours , 32 offline
Oct - 3 hours , 0 offline
Nov - 1 hours , 114 offline
Dec - 123 hours , 762 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Wessex Water ST LEONARDS CRAIGSIDE ROAD Moors River 13 45h 32m -
Wessex Water WEST PARLEY CHURCH LANE River Stour 8 39h 40m -
Wessex Water CHRISTCHURCH STONEY LANE STORM TANK River Avon 3 37h 56m -
Wessex Water ST LEONARDS CRAIGSIDE ROAD Moors River 6 30h 38m -
Wessex Water BOURNEMOUTH COOPER DEAN DETENTION TANK River Stour Via Sws 13 25h 25m -
Wessex Water HOLDENHURST RIVERSIDE AVENUE STORM TANK River Stour 5 19h 55m -
Wessex Water FERNDOWN AMEYSFORD ROAD Uddens Water 3 18h 36m -
Wessex Water ST LEONARDS FOREST EDGE DRIVE Moors River Via Sws 4 16h 28m -
Wessex Water FERNDOWN AMEYSFORD ROAD Uddens Water 8 15h 51m -
Wessex Water FERNDOWN A31 TRICKETTS CROSS Uddens Water 4 15h 36m 2 h
Wessex Water ST LEONARDS FOREST EDGE DRIVE Moors River Via Sws 4 15h 34m -
Wessex Water CHRISTCHURCH STONEY LANE STORM TANK River Avon 2 11h 1m -
Wessex Water ST LEONARDS WAYSIDE ROAD NO X Moors River 4 10h 26m -
Wessex Water ST LEONARDS WAYSIDE ROAD NO X Moors River 2 10h 10m -
Wessex Water BRANSGORE WILTSHIRE GARDENS Clockhouse Stream 1 8h 48m -
Wessex Water BOURNEMOUTH MAXWELL ROAD Unknown 15 6h 34m -
Wessex Water WEST MOORS PENNINGTON COPSE Uddens Water 1 5h 56m -
Wessex Water WEST PARLEY CHURCH LANE River Stour 3 5h 10m -
Wessex Water BRANSGORE WILTSHIRE GARDENS Clockhouse Stream 2 2h 52m -
Wessex Water BOURNEMOUTH MAXWELL ROAD Unknown 3 1h 14m -
Wessex Water NEW ROAD FERNDOWN Moors River 2 1h -
Wessex Water BOURNEMOUTH COOPER DEAN DETENTION TANK River Stour Via Sws 1 0h 49m -
Wessex Water BOURNEMOUTH CHARMINSTER ROAD NEAR XXX-XXX Unknown 1 0h 32m -
Wessex Water BOURNEMOUTH ASHLEY ROAD JNC WILSON ROAD River Stour 1 0h 32m -
Wessex Water PALMERSFORD STORM TANK Lower River Stour 1 0h -
Wessex Water MUDEFORD GARDENS River Mude 0 0h 3 h
Wessex Water FERNDOWN THAMES CLOSE Moors River 0 0h 7 h
Wessex Water BURTON STONY LANE Clockhouse Stream 0 0h 855 h
Wessex Water BURTON STONY LANE Clockhouse Stream 0 0h 23 h
Wessex Water BOURNEMOUTH CHARMINSTER ROAD NEAR XXX-XXX Unknown 0 0h -
Wessex Water FERNDOWN DUGDELL CLOSE Moors River 0 0h 9 h
Wessex Water FERNDOWN ALDRIDGE ROAD Unknown 0 0h 7 h
Wessex Water HOLDENHURST RIVERSIDE AVENUE STORM TANK River Stour 0 0h -
Wessex Water FERNDOWN REDWOOD DRIVE Uddens Water 0 0h 1 h
Wessex Water FERNDOWN THAMES CLOSE Moors River 0 0h 0 h
Wessex Water Unknown Unknown 0 0h 1 h
Wessex Water MUDEFORD GARDENS River Mude 0 0h 16 h
Wessex Water FERNDOWN REDWOOD DRIVE Uddens Water 0 0h 2 h
Wessex Water WEST MOORS PENNINGTON COPSE Uddens Water 0 0h -
Wessex Water NEW ROAD FERNDOWN Moors River 0 0h -
Wessex Water FERNDOWN ALDRIDGE ROAD Unknown 0 0h 4 h
Wessex Water Unknown Unknown 0 0h 3 h
Wessex Water FERNDOWN A31 TRICKETTS CROSS Uddens Water 0 0h 9 h
Wessex Water BOURNEMOUTH ASHLEY ROAD JNC WILSON ROAD River Stour 0 0h -
Wessex Water FERNDOWN DUGDELL CLOSE Moors River 0 0h 16 h
Wessex Water PALMERSFORD STORM TANK Lower River Stour 0 0h 8 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.