Fareham and Waterlooville was polluted by sewage 404 times in 2024
lasting 4,383 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 Fareham and Waterlooville in 2025
So far this year (as of Apr 16, 2025, 6:15 PM) there has been 1,015 hours of sewage overflows
Totals for Fareham and Waterlooville in 2024
19 Sites polluted by Southern Water
404 sewage dumps
4,383 h duration
That's 6.09 months. On average 1.1 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 Fareham and Waterlooville, 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 Fareham and Waterlooville 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 23 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 %
Southern Water River Meon WICKHAM WWTW 105 1,955 98.9
Southern Water River Meon FAREHAM ROAD WICKHAM CEO 70 877 100
Southern Water Wallington River HIGH STREET FAREHAM CSO 85 847 100
Southern Water River Wallington SOUTHWICK WWTW 35 398 98.8
Southern Water Hoeford Lake HOEFORD FAREHAM CEO 25 96 99.8
Southern Water Blackbrook Stream THE GILLIES FAREHAM CSO 8 33 99.5
Southern Water Black Brook ELMHURST ROAD (COMPASS POINT) CSO 21 32 100
Southern Water River Wallington NEWMANS BRIDGE SOUTHWICK CEO 3 29 99.6
Southern Water Potwell HAMBLETON ROAD WATERLOOVILLE CSO 6 25 99.8
Southern Water River Wallington WICKHAM ROAD FAREHAM WPS CSO 7 19 99.6
Southern Water Black Brook STORM OVERFLOW AT ARUNDEL DRIVE 9 16 99.7
Southern Water Fareham Creek/Portsmouth Hbr QUAY STREET, FAREHAM CSO 11 15 66.3
Southern Water Portsmouth Harbour WICOR MILL LANE PORTCHESTER CEO 6 11 99.6
Southern Water Fareham Creek/Portsmouth Hbr BRIDGEFOOT PUMPING STATION 6 8 99.8
Southern Water Black Brook REDLANDS LANE FAREHAM CSO 3 6 99.5
Southern Water Portsmouth Harbour SALTERNS LANE FAREHAM CEO 1 3 99.6
Southern Water Portsmouth Harbour SALTERNS LANE FAREHAM O/S 12 CSO 1 2 99.9
Southern Water Portsmouth Harbour COW LANE PORTCHESTER CEO 1 0 99.7
Southern Water River Wallington RAMBLERS WAY WATERLOOVILLE CEO 1 0 99.8
Southern Water Sheepwash HAMBLEDON PS 0 0 99.8
Southern Water Hoeford Stream COTSWOLD WALK CSO 0 0 100
Southern Water Fareham Creek/Portsmouth Hbr CAMS HILL, FAREHAM CSO 0 0 99.9
Southern Water River Wallington WALLINGTON HILL CSO 0 0 99.7

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.