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Polluted by sewage 953 times in 2025 lasting 5,383 hours
Monitoring fell below 50% in some locations so could be more
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Donate NowHere are all the reported sewage overflow totals for East Grinstead and Uckfield in 2025. 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 2 of the total 42 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Southern Water | River Ouse | DANEHILL S.T.W. | 49 | 636 | 99.8 |
| Southern Water | Bevern Stream | BARCOMBE NEW S.T.W. | 49 | 510 | 100 |
| Southern Water | Coombe Brook | WEST HOATHLY S.T.W. | 44 | 483 | 100 |
| Southern Water | River Ouse | BALCOMBE WASTEWATER TREATMENT WORKS | 40 | 470 | 97.25 |
| Southern Water | River Medway | HARTFIELD ROAD CSO | 56 | 438 | 100 |
| Southern Water | River Adur | WIVELSFIELD S.T.W. | 42 | 346 | 100 |
| Southern Water | Freshwater River | PARTRIDGE PLACE PUMPING STATION | 34 | 294 | 99.5 |
| Southern Water | River Ouse | SCAYNES HILL WWTW | 32 | 291 | 100 |
| Southern Water | Freshwater River | HAZELDEN PS CSO | 35 | 254 | 99.7 |
| Southern Water | River Medway | WITHYPITTS PUMPING STATION | 29 | 176 | 99.4 |
| Southern Water | River Uck | BUXTED WWTW | 19 | 170 | 100 |
| Southern Water | Lywood Stream | ARDINGLY WWTW | 17 | 122 | 98.1 |
| Southern Water | Shortbridge Stream | MARESFIELD WWTW | 13 | 114 | 97.7 |
| Southern Water | Pippingford Brook | NUTLEY WWTW | 18 | 110 | 100 |
| Southern Water | River Ouse | JACKIES LANE NEWICK CEO | 23 | 105 | 99.8 |
| Southern Water | River Ouse | NEWICK WWTW | 33 | 100 | 100 |
| Thames Water | Gatwick Stream | Pease Pottage | 12 | 98 | 91.7 |
| Southern Water | North End Stream.River Ouse | COOKSBRIDGE WWPS COOKSBRIDGE | 13 | 79 | 100 |
| Southern Water | Cockhaise Brook | HORSTED KEYNES WWTW | 11 | 78 | 99.95 |
| Southern Water | Freshwater River | NURSERY LANE PUMPING STATION | 23 | 56 | 100 |
| Southern Water | Sunnyside Stream | LUXFORD LN-EAST GRINSTEAD S.T.W. | 15 | 55 | 99.8 |
| Southern Water | Shortbridge Stream | FAIRWARP PUMPING STATION | 10 | 53 | 99.8 |
| Southern Water | River Medway | HAZEL WAY PUMPING STATION | 12 | 52 | 100 |
| Southern Water | Freshwater River | COOPERS GREEN PS, UCKFIELD | 14 | 43 | 99.6 |
| Southern Water | Ridgewood Stream | UCKFIELD WASTEWATER TREATMENT WORKS | 6 | 40 | 98.1 |
| Southern Water | Freshwater River | HIGH STREET UCKFIELD CSO | 16 | 40 | 99 |
| Southern Water | River Medway | CSO AT STATION ROAD - FOREST ROW | 14 | 38 | 48.6 |
| Southern Water | Cockhaise Brook | WEST HOATHLY CEO | 10 | 28 | 99.4 |
| Southern Water | Balcombe Lake | ST JAMES COTTAGE BALCOMBE CSO | 240 | 25 | 88.4 |
| Southern Water | Felbridge Wtr | FERNHILL CLOSE CRAWLEY DOWN | 4 | 22 | 17.6 |
| Southern Water | Freshwater River | BELL LANE PUMPING STATION | 3 | 14 | 99.8 |
| Southern Water | Longford Stream | SOUTH STREET CHAILEY SPS | 1 | 8 | 99.5 |
| Southern Water | Lywood Stream River Ouse | ARDINGLY WWTW, ARDINGLY | 3 | 5 | 98.1 |
| Southern Water | R Medway | DALLAWAY GDNS E GRINSTEAD CSO | 4 | 5 | 98.5 |
| Southern Water | Shovelstrode Stream | GLEAVE CLOSE EAST GRINSTEAD CEO | 1 | 4 | 100 |
| Southern Water | River Ouze | SCHOOL LANE DANEHILL CSO | 2 | 2 | 59.3 |
| Southern Water | Eden Vale Stream | CHARLWOODS ROAD EAST GRINSTEAD CSO | 3 | 2 | 98.5 |
| Southern Water | Unamed Medway Via Pond | MOUNT NODDY CEM. EAST GRINSTEAD CSO | 1 | 0 | 84.2 |
| Southern Water | Freshwater River | FRAMFIELD ROAD SEWAGE PUMPING | 1 | 0 | 100 |
| Southern Water | Freshwater River | BLACKMORES FARM CSO | 1 | 0 | 86.1 |
| Southern Water | Tickerage Stream | BRITTS FARM BUXTED CEO | 0 | 0 | 100 |
| Southern Water | Framfield Stream | CSO, FRAMFIELD ROAD, UCKFIELD, E/S | 0 | 0 | 99.5 |
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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Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org