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Polluted by sewage 934 hours in 2026 , monitoring offline 3,299 hours so far..
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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Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Offline/Potential Pollution |
|---|---|---|---|---|---|
| Southern Water | BUDDS FARM HAVANT SSO - 115936 | Solent/Langstone Harbour | 42 | 831h 33m | - |
| Southern Water | KINGS ROAD EMSWORTH CSO - 109298 | Nore Rithe/Emsworth Harbour | 8 | 67h 36m | - |
| Southern Water | GREEN LANE HAYLING ISLAND CSO - 108769 | Hayling Bay | 4 | 15h 50m | - |
| Southern Water | BUDDS FARM HAVANT SE7 CEO - 116073 | Brockhampton Creek | 2 | 14h 33m | - |
| Southern Water | WESTBROOK GROVE PURBROOK CEO - 108498 | Wallington River Via Drain | 1 | 3h 19m | - |
| Southern Water | PRIORSDEAN CRESCENT HAVANT CSO - 108475 | Hermitage Stream | 1 | 1h 27m | - |
| Southern Water | KINGS ROAD EMSWORTH CSO - 109298 | Nore Rithe/Emsworth Harbour | 0 | 0h | - |
| Southern Water | LONE VALLEY WATERLOOVILLE CSO - 108452 | River Wallington | 0 | 0h | 3,299 h |
| Southern Water | LONE VALLEY WATERLOOVILLE CSO - 108452 | River Wallington | 0 | 0h | - |
| Southern Water | BUDDS FARM HAVANT SSO - 115936 | Solent/Langstone Harbour | 0 | 0h | - |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org