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Polluted by sewage 450 times in 2024 lasting 3,961 hours
So far this year (as of Apr 30, 2025, 9:15 AM) there has been 794 hours of sewage overflows
Your local MP is Paul Holmes (Conservative) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Hamble Valley, 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.
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Donate NowHere are all the reported sewage overflow totals for Hamble Valley 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 all the declared CSOs appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Southern Water | River Hamble Estuary | HAMBLE LANE BURSLEDON WASTEWATER PS | 63 | 949 | 99.6 |
| Southern Water | River Hamble | BROOK LANE PS | 47 | 675 | 99.7 |
| Southern Water | Hungerford Stream | HUNGERFORD BOTTOM BURSLEDON CEO | 66 | 533 | 99.8 |
| Southern Water | Hook Lake | NEWTOWN ROAD NEWTOWN CEO | 34 | 475 | 99.9 |
| Southern Water | River Itchen | POUND ROAD BURSLEDON CEO | 95 | 437 | 99.7 |
| Southern Water | Badnam Creek | SALTERNS LANE BURSLEDON CEO | 58 | 356 | 99.8 |
| Southern Water | River Hamble | BROAD OAK BOTLEY CSO | 25 | 230 | 76.6 |
| Southern Water | Southampton Water | HOOK PARK WPS | 18 | 109 | 99.6 |
| Southern Water | River Hamble | SCHOOL LANE HAMBLE CEO | 20 | 96 | 99.9 |
| Southern Water | Shawfords Lake | FAIRTHORNE MANOR CEO | 8 | 49 | 99.6 |
| Southern Water | River Hamble | CHURCH LANE BOTLEY CEO | 2 | 13 | 99.7 |
| Southern Water | Southampton Water | ENSIGN PARK HAMBLE CEO | 1 | 11 | 99.8 |
| Southern Water | Hook Lake | DIBLES ROAD WARSASH PS | 1 | 8 | 99.6 |
| Southern Water | River Hamble | HAMBLEWOOD BOTLEY CSO | 7 | 7 | 67.6 |
| Southern Water | Southampton Water | BEACH LANE NETLEY CEO | 2 | 5 | 90.3 |
| Southern Water | Wildern Stream | CHALICE COURT HEDGE END CEO | 3 | 2 | 99.9 |
| Southern Water | To Spear Pond Gully | INGLESIDE NETLEY PUMPING STATION | 0 | 0 | 100 |
| Southern Water | Southampton Water | VICTORIA ROAD NETLEY CEO | 0 | 0 | 99.9 |
| Southern Water | Curbridge Stream | WHITELEY WPS | 0 | 0 | 99.5 |
| Southern Water | Burridge Stream | WELLS CLOSE WHITELEY CEO | 0 | 0 | 94.8 |
| Southern Water | Moorgreen Stream | MARLBOROUGH GARDENS HEDGE END CEO | 0 | 0 | 99.8 |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org