Here are all the reported sewage overflow totals for River Thames in 2023. Sometimes sewage can be being dumped for months at a time.
These numbers are very slightly different from the Rivers page. We're working on it.
Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
---|---|---|---|---|---|
Thames Water | River Thames | CRICKLADE WWTW | 114 | 1,482 | 100 |
Thames Water | River Thames | BRIXTON STORM RELIEF SEWER, LONDON | 130 | 914 | 96.6 |
Thames Water | River Thames | SLOANE STREET, RANELAGH GDNS, LONDO | 83 | 766 | 89.73 |
Thames Water | River Thames | HATCHETTS SPS | 31 | 477 | 94.2 |
Thames Water | River Thames | LONG REACH WWTW | 42 | 407 | 99.8 |
Thames Water | River Thames | SW STORM RELIEF SEWER, LONDON | 32 | 394 | 90.9 |
Thames Water | River Thames | HAMBLEDON SEWAGE TREATMENT WORKS | 20 | 334 | 100 |
Thames Water | River Thames | DEPTFORD STORM RELIEF, LONDON | 41 | 171 | 98.8 |
Thames Water | River Thames | IRONGATE SEWER, LONDON | 76 | 156 | 99.7 |
Thames Water | River Thames | HEATH WALL PS, LONDON | 43 | 135 | 100 |
Thames Water | River Thames | FLEET MAIN LINE SEWER, LONDON | 71 | 117 | 79.07 |
Thames Water | River Thames | HAMMERSMITH PS, LONDON | 29 | 107 | 91.6 |
Thames Water | River Thames | EARL PS STORM OUTLET, LONDON | 30 | 94 | 100 |
Thames Water | River Thames | COUNTERS CREEK, LOTS ROAD PS, LONDO | 21 | 76 | 100 |
Thames Water | River Thames | FALCON BROOK PS, LONDON | 34 | 75 | 99.7 |
Thames Water | River Thames | WESTERN PS LOW LEVEL SEWER, LONDON | 22 | 74 | 99.7 |
Thames Water | River Thames | CHARLTON STORM RELIEF, LONDON | 9 | 41 | 84.97 |
Thames Water | River Thames | NORTHUMBERLAND STREET, LONDON | 19 | 41 | 95.7 |
Thames Water | River Thames | PETERSHAM ROAD CSO | 21 | 35 | 98.3 |
Thames Water | River Thames | HORSEFERRY ROAD SEWER, LONDON | 25 | 35 | 96.7 |
Thames Water | River Thames | GREENWICH PS, GREENWICH, LONDON | 5 | 30 | 99.9 |
Thames Water | River Thames | CLAPHAM STORM RELIEF SEWER, LONDON | 22 | 28 | 100 |
Thames Water | River Thames | REGENT STREET, LONDON | 13 | 28 | 99.1 |
Thames Water | River Thames | KINGS SCHOLARS POND SEWER, LONDON | 16 | 27 | 84 |
Thames Water | River Thames | LOWER THAMES STREET, BEER LANE, LON | 36 | 26 | 100 |
Thames Water | River Thames | TIDEWAY COMBINED SEWER OVERFLOW | 4 | 20 | 100 |
Thames Water | River Thames | SMITH STREET, LONDON | 23 | 19 | 90 |
Thames Water | River Thames | WOOD STREET, LONDON | 13 | 19 | 99.8 |
Thames Water | River Thames | SHAD, THAMES PS, LONDON | 10 | 17 | 100 |
Thames Water | River Thames | NORFOLK STREET, LONDON | 10 | 14 | 99.5 |
Thames Water | River Thames | CSO AT PORTSMOUTH/UXBRIDGE ROAD | 5 | 5 | 97.8 |
Thames Water | River Thames | STAMFORD BROOK, HAMMERSMITH, LONDON | 5 | 4 | 99.8 |
Thames Water | River Thames | CHURCH STREET SEWER, LONDON | 7 | 2 | 99.8 |
Thames Water | River Thames | WANDLE VALLEY, LONDON | 1 | 2 | 99.9 |
Thames Water | River Thames | PUTNEY BRIDGE STREET, LONDON | 11 | 2 | 94.9 |
Thames Water | River Thames | NW. RELIEF SEWER, LOWER MALL, LONDO | 2 | 1 | 94.2 |
Thames Water | River Thames | HOLLOWAY STORM SEWER, LONDON | 2 | 1 | 95.5 |
Thames Water | River Thames | GOSWELL STREET, S. BRANCH SEWER, LO | 5 | 1 | 73.4 |
Thames Water | River Thames | LOW LEVEL 1, LOWER MALL, LONDON | 5 | 1 | 100 |
Thames Water | River Thames | QUEEN STREET, LONDON | 2 | 0 | 96.5 |
Thames Water | River Thames | ISLE OF DOGS PUMPING STATION CSO | 4 | 0 | 100 |
Thames Water | River Thames | LITTLE MARLOW STW ( WOOBURNVALLEY ) | 0 | 0 | 99.8 |
Thames Water | River Thames | SAVOY STREET, LONDON | 0 | 0 | 0 |
Thames Water | River Thames | Mackney Lane (Main) | 0 | 0 | 0 |
Thames Water | River Thames | GORING WASTEWATER TREATMENT WORKS | 0 | 0 | 98.9 |
Thames Water | River Thames | Long Lane | 0 | 0 | 0 |
Thames Water | River Thames | WAPPING DOCK, GUN WHARF, LONDON | 0 | 0 | 100 |
Thames Water | River Thames | WEST PUTNEY RELIEF SEWER, LONDON | 0 | 0 | 0 |
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.