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Fareham and Waterlooville - 2025 Sewage

Polluted by sewage 2,174 hours in 2025

© OpenStreetMap contributors
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 Fareham and Waterlooville 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 - 721 hours
Feb - 264 hours
Mar - 28 hours
Apr - 0 hours
May - 0 hours
Jun - 16 hours
Jul - 9 hours
Aug - 0 hours
Sept - 50 hours
Oct - 89 hours
Nov - 145 hours
Dec - 846 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Southern Water WICKHAM SSO - 115821 River Meon 40 746h 44m -
Southern Water WICKHAM SSO - 115821 River Meon 29 585h 13m -
Southern Water FAREHAM ROAD WICKHAM CEO - 108501 River Meon 17 171h 41m -
Southern Water FAREHAM ROAD WICKHAM CEO - 108501 River Meon 10 143h 48m -
Southern Water FOREST ROAD DENMEAD NO 1 CSO - 100941 Sheepwash 13 122h 24m -
Southern Water FOREST ROAD DENMEAD NO 1 CSO - 100941 Sheepwash 9 74h 36m -
Southern Water SOUTHWICK SSO - 115780 River Wallington 4 61h 47m -
Southern Water HOEFORD FAREHAM CEO - 108442 Hoeford Lake 14 48h 5m -
Southern Water HIGH STREET FAREHAM CSO - 108439 Wallington River 8 30h 48m -
Southern Water QUAY STREET FAREHAM CSO - 108476 Fareham Creek/Portsmouth Hbr 5 29h -
Southern Water SOUTHWICK SSO - 115780 River Wallington 2 21h 46m -
Southern Water THE GILLIES FAREHAM CSO - 103266 Blackbrook Stream 7 20h 6m -
Southern Water ELMHURST ROAD FAREHAM CSO - 108425 Black Brook 7 17h 48m -
Southern Water NEWMANS BRIDGE SOUTHWICK CEO - 108880 River Wallington 1 13h 2m -
Southern Water ARUNDEL DRIVE FAREHAM CSO - 108391 Portsmouth Harbour 7 12h 45m -
Southern Water HAMBLEDON ROAD WATERLOOVILLE CSO - 108437 Potwell 2 9h 55m -
Southern Water HOEFORD FAREHAM CEO - 108442 Hoeford Lake 1 9h 9m -
Southern Water REDLANDS LANE FAREHAM CSO - 110326 Black Brook 2 7h 51m -
Southern Water ELMHURST ROAD FAREHAM CSO - 108425 Black Brook 1 7h 6m -
Southern Water THE GILLIES FAREHAM CSO - 103266 Blackbrook Stream 1 6h 55m -
Southern Water HAMBLEDON ROAD WATERLOOVILLE CSO - 108437 Potwell 1 6h 31m -
Southern Water ARUNDEL DRIVE FAREHAM CSO - 108391 Portsmouth Harbour 1 5h 7m -
Southern Water NEWMANS BRIDGE SOUTHWICK CEO - 108880 River Wallington 1 4h 34m -
Southern Water Unknown Unknown 3 4h 29m -
Southern Water HIGH STREET FAREHAM CSO - 108439 Wallington River 1 4h 23m -
Southern Water WICOR MILL LANE PORTCHESTER CEO - 108502 Portsmouth Harbour 3 4h 4m -
Southern Water REDLANDS LANE FAREHAM CSO - 110326 Black Brook 1 3h 5m -
Southern Water SALTERNS LANE FAREHAM CEO - 108851 Portsmouth Harbour 2 1h 21m -
Southern Water COW LANE PORTCHESTER CEO - 108419 Portsmouth Harbour 1 0h 34m -
Southern Water RAMBLERS WAY WATERLOOVILLE CEO - 110201 River Wallington 1 0h -
Southern Water Unknown Unknown 0 0h -
Southern Water WICKHAM ROAD FAREHAM CSO - 111249 River Wallington 0 0h -
Southern Water RAMBLERS WAY WATERLOOVILLE CEO - 110201 River Wallington 0 0h -
Southern Water SALTERNS LANE FAREHAM CEO - 108851 Portsmouth Harbour 0 0h -
Southern Water WALLINGTON HILL FAREHAM CSO - 108494 River Wallington 0 0h -
Southern Water COTSWOLD WALK FAREHAM CSO - 108418 Hoeford Stream 0 0h -
Southern Water QUAY STREET FAREHAM CSO - 108476 Fareham Creek/Portsmouth Hbr 0 0h -
Southern Water COW LANE PORTCHESTER CEO - 108419 Portsmouth Harbour 0 0h -
Southern Water BRIDGEFOOT FAREHAM CEO - 108400 Fareham Creek/Portsmouth Hbr 0 0h -
Southern Water WICOR MILL LANE PORTCHESTER CEO - 108502 Portsmouth Harbour 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.