Rossendale and Darwen polluted by sewage 1,983 times in 2023 - lasting 9,473 hours
- 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 Rossendale and Darwen in 2023
49 Sites polluted by United Utilities
1,983 sewage dumps
9,473 h duration
That's 1.1 years! On average 5.4 times a day
Change Over Time

Pollution Summary 2023

Here are all the reported sewage overflow totals for Rossendale and Darwen 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 2 of the total 65 CSO locations had reporting enabled for less than half the year, of which 2 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
United Utilities River Irwell ROSSENDALE WWTW 118 1,900 61.7
United Utilities River Irwell THE GLEN COMBINED SEWER OVERFLOW 179 1,842 95.3
United Utilities River Irwell BACUP ROAD/FALBARN FOLD CSO 118 964 100
United Utilities River Irwell NEWCHURCH ROAD/BROOKS STREET CSO 108 556 98.4
United Utilities River Spodden WHITWORTH CSO 84 556 100
United Utilities River Irwell NEWCHURCH ROAD CSO (36013) 51 457 100
United Utilities River Irwell 295 BACUP ROAD CSO 68 407 96.8
United Utilities Unknown BOLTON ROAD SSO 58 381 98.1
United Utilities River Ogden IRWELL VALE PS 64 369 72.9
United Utilities Swinnel Brook HELMSHORE CARAVAN PARK CSO 71 351 98.9
United Utilities Limy Water R Irwell BANK ST COMBINED SEWER OVERFLOW 75 294 100
United Utilities Whitewell Brook 143 BURNLEY ROAD EAST CSO 40 179 96.8
United Utilities River Darwen CLARENCE STREET CSO 62 137 58.8
United Utilities River Darwen HIGHER PERRY ST/BLACK LAUREL ST CSO 97 118 100
United Utilities River Irwell NEWCHURCH ROAD/WESLEY PLACE CSO 59 113 100
United Utilities Culverted Section River Darwen BALLE STREET HILTON STREET CSO 74 104 100
United Utilities Limy Water Irwell BURNLEY RD/MIDDLEGATE CSO 26 101 97.4
United Utilities River Darwen GRIMSHAW STREET CSO 43 97 99.2
United Utilities River Irwell HIGHFIELD ROAD CSO 24 82 100
United Utilities River Darwen BALLE STREET HILTON STREET CSO 67 51 100
United Utilities River Darwen COTTON HALL STREET CSO 66 44 100
United Utilities River Darwen ANYON STREET/LAUREL AVE CSO 58 38 100
United Utilities Quarlton Brook BROADHEAD ROAD CSO 051FX 20 38 100
United Utilities River Irwell WATERBARN LANE CSO 15 37 99.7
United Utilities River Irwell NEW HALL HEY ROAD CSO 19 34 100
United Utilities River Irwell HAMMERTONSTREET/STANLEY STREET CSO 71 34 95.7
United Utilities River Darwen SUDELL ROAD CSO 30 31 100
United Utilities River Darwen BOLTON ROAD CSO 20 29 100
United Utilities Kebbs Brook, Riv Darwen BOLTON ROAD/ASTLEY STREET CSO 20 29 99.7
United Utilities River Irwell NEW HALL HEY BRIDGE CSO 14 16 100
United Utilities Limy Water RUSHBED SSO 39 15 96.1
United Utilities River Darwen Via Sws HINDLE STREET CSO 29 12 100
United Utilities River Irwell 709 BACUP ROAD CSO 7 10 100
United Utilities River Darwen 28 TYTHEBARN ST 22 10 100
United Utilities Unknown COWDE RD BR. 5 5 100
United Utilities River Darwen KAY STREET CSO 18 3 100
United Utilities River Spodden STATION ROAD (WHITWORTH) CSO 6 2 100
United Utilities River Irwell NEWCHURCH ROAD BACUP CSO 10 2 100
United Utilities River Irwell BURNLEY ROAD BACUP CSO 2 2 100
United Utilities Whitewell Brook BURNLEY RD E/BOOTH ST CSO 2 1 100
United Utilities Whitewell Brook BURNLEY RD E /WHITEWELL BOTTOM CSO 2 0 100
United Utilities Whitewll Brook BURNLEY ROAD EAST/SHAWCLOUGH CSO 1 0 100
United Utilities Culverted Section River Darwen CHURCH STREET/PARLIAMENT STREET CSO 5 0 97
United Utilities River Darwen CRANBERRY LANE CSO 3 0 100
United Utilities River Irwell SOUTH STREET/PICKUP STREET CSO 6 0 100
United Utilities River Irwell ROCKLIFFE ROAD/RIVER STREET CSO 2 0 100
United Utilities River Irwell LEE ROAD CSO (369BA) 2 0 99.5
United Utilities River Irwell BLACKWOOD ROAD CSO 2 0 99.3
United Utilities River Darwen REDEARTH ROAD/SUDELL ROAD CSO 1 0 96.8
United Utilities Waterside Brook WATERSIDE CSO 052Z1 0 0 100
United Utilities River Darwen BELGRAVE ROAD CSO 0 0 100
United Utilities Whitewell Brook 876 BURNLEY RD EAST CSO 0 0 100
United Utilities River Darwen WOODVALE FLATS CSO 0 0 100
United Utilities River Darwen FOOTPATH NR CROSS ST CSO 0 0 100
United Utilities River Darwen VALE STREET 0 0 0
United Utilities River Darwen SUDELLSIDE STREET 0 0 100
United Utilities Gleave Clough Brook TONG LANE/REED STREET CSO 0 0 98.2
United Utilities River Darwen QUEENS ROAD (DARWEN) CSO 0 0 100
United Utilities Eagley Brook BELMONT WWTW 0 0 38.1
United Utilities Culverted River Irwell WELLINGTON HOTEL CSO 0 0 100
United Utilities Clvrtd Section Of River Darwen RAILWAY ROAD/SOUTH STREET CSO 0 0 100
United Utilities Whitewell Brook BURNLEY ROAD EAST/TOWNLEY ARMS CSO 0 0 100
United Utilities Greave Clough Via Sws GREAVE CLOUGH DRIVE CSO 0 0 100
United Utilities River Spodden WHITWORTH SSO 0 0 0
United Utilities River Darwen BOLTON ROAD CSO 0 0 100

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.