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Polluted by sewage 1,588 times in 2024 lasting 18,001 hours - That's 2.08 years!
Monitoring fell below 50% in some locations so could be more
So far this year (as of May 12, 2025, 12:45 PM) there has been 3,669 hours of sewage overflows - that's 0.42 years!
Your local MP is James MacCleary (Liberal Democrat) - 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 Lewes, 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 Lewes 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 4 of the total 30 CSO locations had reporting enabled for less than half the year.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Southern Water | Tidal River Ouse | HAM LANE LEWES SETTLES STORM TANK | 259 | 4,824 | 99.3 |
| Southern Water | Bevern Stream | DITCHLING WWTW | 158 | 2,652 | 92.5 |
| Southern Water | River Cuckmere | THE SPOTS P.S. ALFRISTON | 156 | 2,486 | 99.9 |
| Southern Water | Bulldog Sewer / Glynde Reach | NEAVES LANE RINGMER WWTW | 104 | 1,286 | 99.7 |
| Southern Water | New Stream Ditch | WILLINGDON CEO | 150 | 1,116 | 94.9 |
| Southern Water | Glynde Reach | LAUGHTON CSO | 81 | 962 | 96.8 |
| Southern Water | English Channel | NEWHAVEN WWTW | 129 | 869 | 98.6 |
| Southern Water | Unnamed Glynde Reach/Ouse | RIPE WWTW | 63 | 817 | 99.8 |
| Southern Water | Freshwater River | UPPER DICKER SEWAGE P.S. | 76 | 739 | 99.9 |
| Southern Water | Mill Ditch | POLEGATE CEO | 58 | 559 | 100 |
| Southern Water | Celery Sewer River Ouse | KINGSTON HOLLOW WWTW | 54 | 261 | 99.6 |
| Southern Water | Glynde Reach | GLYNDE NORTH PUMPING STATION | 28 | 257 | 99.9 |
| Southern Water | River Cuckmere | BERWICK WWTW | 24 | 255 | 99.9 |
| Southern Water | Mill Ditch | POLEGATE NO.1 CSO LYNHOLM RD POLEGT | 41 | 254 | 100 |
| Southern Water | Bevern Stream | STRAWLANDS WWPS | 22 | 157 | 100 |
| Southern Water | Tidal River Ouse | DENTON ISLAND NEWHAVEN CSO | 15 | 135 | 99.7 |
| Southern Water | Glynde Reach River Ouse | GLYNDE SOUTH CEO | 12 | 101 | 100 |
| Southern Water | River Ouse | COURT ROAD WWPS, LEWES | 82 | 81 | 99.8 |
| Southern Water | Groundwaters Via Infiltration | EAST DEAN WWTW | 16 | 38 | 99.4 |
| Southern Water | Wannock Mill Stream | SOUTHFIELD POLEGATE CSO E'BOURNE RD | 11 | 32 | 99.7 |
| Southern Water | Wannock Mill Stream | WANNOCK RD WANNOCK CSO, WANNOCK | 8 | 28 | 96.3 |
| Southern Water | Glynde Reach | SELMESTON CROSSING S.P.S, SELMESTON | 13 | 27 | 99.6 |
| Southern Water | English Channel | CLIFF END WWPS SEAFORD | 18 | 23 | 99.9 |
| Southern Water | Tidal River Ouse | SEAFORD BAY OUTFALL | 6 | 19 | 91.7 |
| Southern Water | River Ouse | FORT ROAD WASTEWATER PS | 2 | 7 | 99.7 |
| Southern Water | Unnamed Herrings Stream | SOUTH STREET DITCHLING CSO | 1 | 1 | 13.2 |
| Southern Water | Freshwater River | HIGH STREET POLEGATE | 1 | 0 | 25.5 |
| Southern Water | Willingdon Upper Sewer | OXENDEN GARDENS WILLINGDON CSO | 0 | 0 | 48.1 |
| Southern Water | English Channel At Seaford Bay | MARTELLO ROAD SEAFORD CSO | 0 | 0 | 98.6 |
| Southern Water | River Ouse | BEACH ROAD CSO, NEWHAVEN | 0 | 0 | 5.6 |
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