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East Hampshire - 2025 Sewage

Polluted by sewage 2,969 hours in 2025 , monitoring offline 338 hours

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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 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.

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Constituencies near East Hampshire

Daily Data

Jan - 1,177 hours
Feb - 916 hours
Mar - 199 hours
Apr - 11 hours
May - 1 hours
Jun - 7 hours , 315 offline
Jul - 0 hours
Aug - 0 hours
Sept - 12 hours
Oct - 0 hours
Nov - 50 hours
Dec - 592 hours , 22 offline
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
Thames Water Selborne STW Oakhanger Stream 49 842h 45m -
Southern Water LISS SSO - 115920 River Rother 31 629h 45m -
Southern Water PETERSFIELD SSO - 115721 Criddell Stream 30 483h 34m -
Southern Water EAST MEON SSO - 115784 River Meon 15 286h 23m -
Southern Water PETERSFIELD SSO - 115721 Criddell Stream 16 217h 36m -
Thames Water Bentley STW River Wey And Groundwater 9 128h 30m 22 h
Southern Water EAST MEON SSO - 115784 River Meon 7 128h 12m -
Thames Water Holybourne (Alton) SPS River Wey 6 77h -
Thames Water Selborne STW Oakhanger Stream 7 61h 45m -
Southern Water LISS SSO - 115920 River Rother 8 39h 26m -
Southern Water BURITON CEO - 116096 Stanbridge Stream 2 12h 38m -
Southern Water STATION ROAD LISS CSO - 108486 River Rother 1 11h 6m -
Thames Water Selbourne SPS Oakhanger Stream 1 11h -
Southern Water BURITON CEO - 116096 Stanbridge Stream 1 10h 56m -
Southern Water CHAPEL STREET PETERSFIELD CSO - 108409 Unnamed Strm To Tilmore Brook 1 8h 16m -
Southern Water COLLEGE STREET PETERSFIELD CSO - 108414 Unnamed Strm To Tilmore Brook 1 6h 8m -
Thames Water Bentley STW River Wey And Groundwater 2 5h 45m -
Southern Water CHAPEL STREET PETERSFIELD CSO - 108409 Unnamed Strm To Tilmore Brook 5 3h 7m -
Southern Water COLLEGE STREET PETERSFIELD CSO - 108414 Unnamed Strm To Tilmore Brook 3 2h 56m -
Thames Water Selbourne SPS Oakhanger Stream 2 2h 30m -
Thames Water Newman Lane (Alton) SPS Wey 0 0h -
Thames Water Newman Lane (Alton) SPS Wey 0 0h 315 h
Thames Water Holybourne (Alton) SPS River Wey 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

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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