Lewes was polluted by sewage 1,629 times in 2023
lasting 19,119 hours - that's 2.21 years!
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Lewes in 2023
27 Sites polluted by Southern Water
1,629 sewage dumps
19,119 h duration
That's 2.21 years! On average 4.5 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for Lewes in 2023. 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 1 of the total 32 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Southern Water Tidal River Ouse HAM LANE LEWES SETTLES STORM TANK 243 4,830 100
Southern Water Bevern Stream DITCHLING WWTW 151 2,657 93.1
Southern Water Bulldog Sewer / Glynde Reach NEAVES LANE RINGMER WWTW 105 1,511 100
Southern Water River Cuckmere THE SPOTS P.S. ALFRISTON 121 1,420 99.9
Southern Water Unnamed Glynde Reach/Ouse RIPE WWTW 73 1,081 100
Southern Water English Channel NEWHAVEN WWTW 138 1,040 99.7
Southern Water Bevern Stream BARCOMBE NEW S.T.W. 91 995 98
Southern Water River Ouse JACKIES LANE NEWICK CEO 62 627 99.8
Southern Water River Ouse NEWICK WWTW 68 607 99.85
Southern Water Mill Ditch POLEGATE CEO 68 595 99.7
Southern Water River Adur WIVELSFIELD S.T.W. 54 509 99.9
Southern Water Freshwater River HAZELDEN PS CSO 65 505 100
Southern Water Celery Sewer River Ouse KINGSTON HOLLOW WWTW 77 481 99.9
Southern Water Mill Ditch POLEGATE NO.1 CSO LYNHOLM RD POLEGT 57 461 99.7
Southern Water Glynde Reach GLYNDE NORTH PUMPING STATION 17 325 100
Southern Water Glynde Reach River Ouse GLYNDE SOUTH CEO 23 295 99.6
Southern Water North End Stream.River Ouse COOKSBRIDGE WWPS COOKSBRIDGE 37 286 100
Southern Water River Ouse COURT ROAD WWPS, LEWES 67 284 100
Southern Water Wannock Mill Stream SOUTHFIELD POLEGATE CSO E'BOURNE RD 18 208 99.6
Southern Water Bevern Stream STRAWLANDS WWPS 25 191 99.7
Southern Water Glynde Reach SELMESTON CROSSING S.P.S, SELMESTON 17 80 99.9
Southern Water Groundwaters Via Infiltration EAST DEAN WWTW 10 31 99.7
Southern Water Longford Stream SOUTH STREET CHAILEY SPS 5 28 99.9
Southern Water Tidal River Ouse SEAFORD BAY OUTFALL 6 24 100
Southern Water English Channel CLIFF END WWPS SEAFORD 27 18 99.9
Southern Water River Ouse FORT ROAD WASTEWATER PS 3 18 100
Southern Water Freshwater River HIGH STREET POLEGATE 1 0 50.1
Southern Water Tidal River Ouse DENTON ISLAND NEWHAVEN CSO 0 0 75.5
Southern Water Freshwater River BLACKMORES FARM CSO 0 0 64.3
Southern Water Unnamed Herrings Stream SOUTH STREET DITCHLING CSO 0 0 0
Southern Water River Ouse BEACH ROAD CSO, NEWHAVEN 0 0 64.6
Southern Water English Channel At Seaford Bay MARTELLO ROAD SEAFORD CSO 0 0 92.3

Data Sources & Accuracy

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.