Polluted by sewage 910 times in 2024 lasting 4,794 hours
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Donate NowHere are all the reported sewage overflow totals for Wandsworth 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 locality all the declared CSOs appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Thames Water | River Thames | BRIXTON STORM RELIEF SEWER, LONDON | 101 | 1,172 | 93.4 |
| Thames Water | River Thames | SLOANE STREET, RANELAGH GDNS, LONDO | 97 | 948 | 99.5 |
| Thames Water | River Thames | PUTNEY BRIDGE STREET, LONDON | 127 | 853 | 90.5 |
| Thames Water | River Thames | SW STORM RELIEF SEWER, LONDON | 38 | 409 | 98.9 |
| Thames Water | Graveney | Streatham Storm Relief | 96 | 203 | 99.92 |
| Thames Water | Wandle | Bell Lane Creek | 49 | 172 | 99.8 |
| Thames Water | Thames Tidal | WANDSWORTH, LONDON SW11 | 36 | 169 | 95.7 |
| Thames Water | Graveney | Streatham & Balham Storm Relief | 79 | 136 | 99.95 |
| Thames Water | River Thames | HEATH WALL PS, LONDON | 39 | 136 | 100 |
| Thames Water | River Thames | FALCON BROOK PS, LONDON | 39 | 101 | 99.6 |
| Thames Water | Bell Lane Creek | Frogmore Storm | 31 | 78 | 95.7 |
| Thames Water | River Thames | WESTERN PS LOW LEVEL SEWER, LONDON | 18 | 73 | 99.9 |
| Thames Water | River Thames | COUNTERS CREEK, LOTS ROAD PS, LONDO | 21 | 71 | 100 |
| Thames Water | Tidal Thames | Low Level 1 N, Grosvenor Ditch, Mil | 26 | 66 | 88.5 |
| Thames Water | River Thames | HORSEFERRY ROAD SEWER, LONDON | 17 | 46 | 98.5 |
| Thames Water | Tidal Thames | West Putney S R, Home Way | 18 | 34 | 99.7 |
| Thames Water | River Thames | WOOD STREET, LONDON | 9 | 23 | 85.7 |
| Thames Water | River Thames | KINGS SCHOLARS POND SEWER, LONDON | 9 | 19 | 99.9 |
| Thames Water | Beverley Brook | PRIORY LANE, MORTLAKE CSO | 9 | 16 | 91.8 |
| Thames Water | River Graveney | Streatham Vale Storm Relief | 12 | 14 | 100 |
| Thames Water | River Thames | SMITH STREET, LONDON | 16 | 13 | 77.1 |
| Thames Water | Thames Tidal | CHELSEA, LONDON SW10 | 1 | 6 | 96.2 |
| Thames Water | River Thames | WANDLE VALLEY, LONDON | 2 | 5 | 100 |
| Thames Water | River Wandle | CSO AT MAPLETON ROAD/BRATHWAY ROAD | 4 | 4 | 100 |
| Thames Water | River Thames | CHURCH STREET SEWER, LONDON | 4 | 3 | 100 |
| Thames Water | Beverley Brook | Road A3, Roehampton Vale | 2 | 3 | 96 |
| Thames Water | River Graveney | CSO AT LONGLEY ROAD | 1 | 3 | 86.6 |
| Thames Water | River Wandle | CSO AT DUNTSHILL ROAD | 1 | 2 | 100 |
| Thames Water | River Wandle | CSO AT GAP ROAD (CEMETERY) | 4 | 2 | 99.6 |
| Thames Water | River Thames | QUEEN STREET, LONDON | 3 | 1 | 99.5 |
| Thames Water | River Wandle | CSO AT PENWITH ROAD | 1 | 1 | 80.1 |
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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