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Polluted by sewage 220 times in 2025 lasting 1,332 hours
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Donate NowHere are all the reported sewage overflow totals for Hamble Valley in 2025. 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 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s 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 | 29 | 368 | 99.9 |
| Southern Water | Hungerford Stream | HUNGERFORD BOTTOM BURSLEDON CEO | 41 | 214 | 100 |
| Southern Water | River Hamble | BROOK LANE PS | 17 | 188 | 99.9 |
| Southern Water | Badnam Creek | SALTERNS LANE BURSLEDON CEO | 35 | 145 | 99.9 |
| Southern Water | Southampton Water | HOOK PARK WPS | 18 | 111 | 99.9 |
| Southern Water | River Hamble | BROAD OAK BOTLEY CSO | 26 | 59 | 99.5 |
| Southern Water | Hook Lake | NEWTOWN ROAD NEWTOWN CEO | 11 | 57 | 100 |
| Southern Water | River Itchen | POUND ROAD BURSLEDON CEO | 6 | 47 | 100 |
| Southern Water | River Hamble | CHURCH LANE BOTLEY CEO | 5 | 46 | 99.9 |
| Southern Water | River Hamble | HAMBLEWOOD BOTLEY CSO | 13 | 42 | 99.6 |
| Southern Water | River Hamble | SCHOOL LANE HAMBLE CEO | 12 | 31 | 99.9 |
| Southern Water | Southampton Water | ENSIGN PARK HAMBLE CEO | 3 | 10 | 99.9 |
| Southern Water | Shawfords Lake | FAIRTHORNE MANOR CEO | 3 | 7 | 100 |
| Southern Water | Southampton Water | BEACH LANE NETLEY CEO | 1 | 0 | 91 |
| Southern Water | Wildern Stream | CHALICE COURT HEDGE END CEO | 0 | 0 | 99.9 |
| Southern Water | Hook Lake | DIBLES ROAD WARSASH PS | 0 | 0 | 100 |
| Southern Water | To Spear Pond Gully | INGLESIDE NETLEY PUMPING STATION | 0 | 0 | 99.9 |
| Southern Water | Moorgreen Stream | MARLBOROUGH GARDENS HEDGE END CEO | 0 | 0 | 99.9 |
| Southern Water | Southampton Water | VICTORIA ROAD NETLEY CEO | 0 | 0 | 99.9 |
| Southern Water | Burridge Stream | WELLS CLOSE WHITELEY CEO | 0 | 0 | 99.7 |
| Southern Water | Curbridge Stream | WHITELEY WPS | 0 | 0 | 99.9 |
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.
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Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org