East Hampshire was polluted by sewage 513 times in 2024
lasting 7,392 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
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✔ means we have experimental daily data since 2023
Live data for East Hampshire in 2025
So far this year (as of Apr 16, 2025, 6:30 PM) there has been 2,293 hours of sewage overflows
Totals for East Hampshire in 2024
12 Sites polluted by Southern Water, Thames Water
513 sewage dumps
7,392 h duration
That's 10.27 months. On average 1.4 times a day
Change Over Time
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Daily Data
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for East Hampshire, 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.
     Monitoring Online      Monitoring Offline      Polluting      Potentially Polluting      Unknown
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for East Hampshire in 2024. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 0 of the total 12 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Thames Water Oakhanger Stream SELBORNE WASTEWATER TREATMENT WORKS 119 2,365 100
Southern Water Stanbridge Stream BURITON WWTW 116 2,284 93.7
Southern Water River Rother LISS WASTEWATER TREATMENT WORKS 79 878 99.6
Thames Water River Wey And Groundwater BENTLEY WASTEWATER TREATMENT WORKS 62 706 95.9
Southern Water River Meon EAST MEON WWTW 32 406 99.8
Southern Water Criddell Stream PETERSFIELD WWTW 49 331 99.6
Thames Water River Wey HOLYBOURNE SPS 19 289 100
Thames Water Wey Newmans Lane 16 57 99.1
Southern Water Unnamed Strm To Tilmore Brook CHAPEL STREET PETERSFIELD CSO 9 44 67.4
Southern Water River Rother STATION ROAD LISS CSO 6 21 60.3
Southern Water Unnamed Strm To Tilmore Brook COLLEGE STREET PETERSFIELD CSO 2 2 34
Thames Water Oakhanger Stream Huckers Lane 4 2 91.6

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. This 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.