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Polluted by sewage 726 times in 2025 lasting 2,683 hours
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Donate NowHere are all the reported sewage overflow totals for Pendle and Clitheroe 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| United Utilities | Chatburn Brook | CHATBURN PUMPING STATION | 66 | 685 | 81.9 |
| United Utilities | Colne Water | COLNE WASTE WATER TREATMENT WORKS | 64 | 430 | 98.6 |
| Yorkshire Water | Earby Beck | EARBY WWTW | 135 | 418 | 99.85 |
| United Utilities | Pendleton Brook | NORTH WEST OF HENTHORN ROAD BRIDGE | 55 | 264 | 99.7 |
| United Utilities | Walverden Water | FLEET STREET | 50 | 135 | 99.8 |
| United Utilities | Stock Beck | BARNOLDSWICK WWTW | 23 | 133 | 100 |
| United Utilities | Pendleton Brook | CLITHEROE STREET CSO | 35 | 111 | 100 |
| United Utilities | River Calder | LONGWORTH RD/R'WAY VIADUCT | 41 | 104 | 99.3 |
| United Utilities | Walverden Water | NETHERFIELD ROAD CSO (32019) | 46 | 93 | 99.8 |
| Yorkshire Water | County Dyke | FOULRIDGE CSO | 56 | 84 | 98.5 |
| United Utilities | Swinden Clough | 273 REGENT ST CSO (32013) | 9 | 47 | 99.8 |
| United Utilities | Pendle Water | LOMESHAYE WAY CSO | 19 | 46 | 99.9 |
| United Utilities | Colne Water | COLNE REFUSE TRANSFER STATION | 11 | 35 | 100 |
| United Utilities | River Calder | SIMONSTONE LANE CSO | 4 | 16 | 97.2 |
| United Utilities | Walverden Wtr Pendle Wtr | CHAPEL HOUSE ROAD (32014) CSO | 10 | 15 | 95 |
| United Utilities | Walverden Water | CHAPEL HOUSE ROAD CSO (32014) | 27 | 15 | 97.8 |
| United Utilities | Hendon Brook | HEY STREET (PLAYGROUND) CSO (32017) | 8 | 9 | 94.4 |
| United Utilities | Pendle Water | 11 NORTH PARK AVENUE CSO | 7 | 8 | 99.9 |
| United Utilities | Colne Water | LANESHAWBRIDGE SCHOOL LANE CSO | 3 | 6 | 96.9 |
| United Utilities | Pendle Water | BARROWFORD CSO | 29 | 5 | 100 |
| United Utilities | Walverden Water | WALVERDEN PARK CSO | 4 | 4 | 100 |
| United Utilities | Butts Beck | DAM HEAD BRIDGE /GISBURN ROAD CSO | 10 | 4 | 99.8 |
| United Utilities | Calf Hall Beck | CALF HALL ROAD CSO | 7 | 1 | 100 |
| United Utilities | Butts Beck | NEAR BUTTS BECK CSO (321H7) | 5 | 1 | 100 |
| United Utilities | Culvrtd Walverden Wtr | REEDYFORD RD CSO (32020) | 1 | 1 | 99.9 |
| United Utilities | Pendleton Brook By Sws | ADJ POLICE STATION KING STREET CSO | 1 | 0 | 96.1 |
| United Utilities | Walverden Water | BRADLEY ROAD CSO (328N5) | 0 | 0 | 100 |
| United Utilities | Butts Beck | CORNMILL COTTAGES CSO | 0 | 0 | 99.9 |
| United Utilities | Walverden Water | CRAWFORD STREET (NELSON) CSO 321P3 | 0 | 0 | 100 |
| United Utilities | Swinden Clough | EDWARD STREET CSO | 0 | 0 | 91.2 |
| United Utilities | Swinden Clough | OXFORD RD/HOLLINS ROAD CSO | 0 | 0 | 100 |
| United Utilities | Sabden Brook | SABDEN CSO (342P9) | 0 | 0 | 98.5 |
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