North East Hampshire - 2025 Sewage

Polluted by sewage 3,681 hours in 2025 , monitoring offline 2,212 hours

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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 North East Hampshire 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.

Totals for North East Hampshire in 2025

Sewage3,681 hours
Monitoring offline2,212 hours
Potential pollution0 hours
Storm overflows24

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Daily Data

Jan - 1,420 hours
Feb - 1,330 hours , 576 offline
Mar - 496 hours , 727 offline
Apr - 1 hours
May - 0 hours
Jun - 0 hours
Jul - 0 hours , 215 offline
Aug - 0 hours , 515 offline
Sept - 1 hours
Oct - 58 hours
Nov - 11 hours , 178 offline
Dec - 362 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Thames Water Crondall STW River Hart 56 836h 15m -
Thames Water Silchester STW Silchester Brook 30 547h 30m -
Thames Water Fleet STW Fleet Brook 39 530h 30m -
Thames Water Sherfield-on-Loddon STW Bow Brook 22 375h 15m -
Thames Water Basingstoke STW River Loddon 37 371h 15m -
Thames Water New Mill STW River Blackwater 25 313h -
Thames Water Hartley Wintney STW River Hart 15 255h 30m -
Thames Water Silchester STW Silchester Brook 12 213h -
Thames Water Wedmans Lane (Rotherwick) SPS Rotherwick Brook 8 71h 28m -
Thames Water Hartley Wintney STW River Hart 4 46h 15m -
Thames Water Fleet STW Fleet Brook 5 43h -
Thames Water Sherfield-on-Loddon STW Bow Brook 4 27h 45m -
Thames Water New Mill STW River Blackwater 2 14h 15m -
Thames Water Crooked Billet (Hook) SPS & Storm SPS River Whitewater 4 9h 36m -
Thames Water Basingstoke STW River Loddon 2 8h 15m -
Thames Water Elvetham Road (Fleet) SPS Basingstoke Canal 6 8h 15m 2,034 h
Thames Water Crooked Billet (Hook) SPS & Storm SPS River Whitewater 1 4h 6m -
Thames Water Wedmans Lane (Rotherwick) SPS Rotherwick Brook 1 2h 46m -
Thames Water Crondall STW River Hart 1 2h -
Thames Water Elvetham Road (Fleet) SPS Basingstoke Canal 1 0h 45m -
Thames Water Water End (Newnham) SPS Lyde River 1 0h 45m -
Thames Water Avondale Road (Fleet) SPS Fleet Brook 0 0h 178 h
Thames Water Avondale Road (Fleet) SPS Fleet Brook 0 0h -
Thames Water Water End (Newnham) SPS Lyde River 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.