It's a Dirty Business

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Blackburn - Live Sewage

Polluted by sewage 518 hours in 2026 , monitoring offline 10 hours , potential overflows 136 hours so far..

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

Select Another Constituency

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Blackburn so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Daily Data

Jan - 105 hours , 3 potential
Feb - 131 hours , 0 potential
Mar - 254 hours , 133 potential
Apr - 5 hours , 3 offline
May - 21 hours , 0 offline
Jun - 0 hours
Jul - 0 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities SHARPLES STREET CSO River Darwen 53 140h 20m 8 h
United Utilities Bolton Road CSO River Darwen 14 99h 4m 24 h
United Utilities Aqueduct Road CSO River Darwen 15 64h 9m -
United Utilities PHILLIPS ROAD CSO River Blakewater V Sws 31 63h 41m 0 h
United Utilities Philips Road CSO River Blakewater 8 36h 24m -
United Utilities Appleby Street CSO River Blakewater 22 24h 36m -
United Utilities Thwaites Brewery Yard CSO River Blakewater 13 20h 2m -
United Utilities Witton Tanks CSO River Blakewater 12 14h 30m -
United Utilities Lower Audley Street CSO River Blakewater 16 13h 36m -
United Utilities Accrington Road CSO Clvrt'D Section Knuzden Brook 11 11h 8m -
United Utilities Addison Close CSO River Blakewater 8 7h 44m -
United Utilities WHALLEY OLD ROAD / PROVIDENCE STREET CSO Little Harwood Brook 11 6h 10m -
United Utilities Queens Park Road CSO Queens Park Culvert 3 4h 14m -
United Utilities Dickens Street CSO Queens Park Culvert 3 3h 38m -
United Utilities Dukes Brow Combined Sewer Overflow (Site ID 051SL) (BBN0069) River Blakewater 5 2h 12m -
United Utilities Gorse Street CSO River Darwen 4 1h 38m 108 h
United Utilities Cherry Tree/Feniscowles CSO River Darwen 3 1h 28m -
United Utilities Cumberland Street CSO Queens Park Culvert Via Sws 2 1h 24m -
United Utilities VICTORIA STREET CSO River Blakewater 1 0h 52m -
United Utilities New Mill Street CSO River Blakewater 1 0h 40m -
United Utilities Rolleston Road CSO Norbury 2 0h 34m -
United Utilities New Mill Street CSO River Blakewater 0 0h -
United Utilities NOTRE DAME GARDENS CSO River Blakewater 0 0h -
United Utilities Addison Close CSO River Blakewater 0 0h -
United Utilities Infirmary Street CSO Leeds/Liverpool Canal 0 0h -
United Utilities 293 PRESTON OLD ROAD CSO River Darwen 0 0h -
United Utilities Preston Old Road CSO River Blakewater 0 0h -
United Utilities NOTRE DAME GARDENS CSO River Blakewater 0 0h 3 h
United Utilities Dukes Brow Combined Sewer Overflow (Site ID 051SL) (BBN0069) River Blakewater 0 0h -
United Utilities Accrington Road CSO Clvrt'D Section Knuzden Brook 0 0h -
United Utilities Ramsgreave Drive CSO River Blakewater 0 0h -
United Utilities Beechwood Road CSO River Blakewater 0 0h -
United Utilities Lark Hill/Brook House Lane CSO River Blakewater 0 0h -
United Utilities Dickens Street CSO Queens Park Culvert 0 0h -
United Utilities Grimshaw Park CSO River Blakewater 0 0h -
United Utilities WHALLEY NEW ROAD CSO River Blakewater 0 0h -
United Utilities WHALLEY RANGE / MILLHAM STREET CSO River Blakewater Via Sws 0 0h -
United Utilities Preston Old Road CSO River Blakewater 0 0h -
United Utilities Revidge Road/Preston New Road Arley Brook 0 0h -
United Utilities Cherry Tree/Feniscowles CSO River Darwen 0 0h -
United Utilities Fielden Street CSO River Blakewater 0 0h -
United Utilities Merchants Landing (Culvert Street) CSO Culvert Culvert St 0 0h -
United Utilities WHALLEY NEW ROAD CSO River Blakewater 0 0h 0 h
United Utilities APPLE STREET CSO River Blakewater 0 0h -
United Utilities Back Queen's Park Road CSO Culvert Pringle St 0 0h -
United Utilities Rolleston Road CSO Norbury 0 0h -
United Utilities Beechwood Road CSO River Blakewater 0 0h -
United Utilities APPLE STREET CSO River Blakewater 0 0h -
United Utilities MANOR ROAD CSO River Blakewater 0 0h -
United Utilities BROWNHILL DRIVE CSO River Blakewater 0 0h -
United Utilities Cumberland Street CSO Queens Park Culvert Via Sws 0 0h -
United Utilities Whalley Range CSO River Blakewater 0 0h -
United Utilities Grimshaw Park CSO River Blakewater 0 0h 2 h
United Utilities 293 PRESTON OLD ROAD CSO River Darwen 0 0h 1 h
United Utilities MANOR ROAD CSO River Blakewater 0 0h -
United Utilities Whalley Range/Westley Street CSO River Blakewater 0 0h -
United Utilities Lower Audley Street CSO River Blakewater 0 0h -
United Utilities GATE STREET CSO River Blakewater 0 0h -
United Utilities WELLINGTON ROAD CSO River Darwen 0 0h -
United Utilities Whalley Range/Westley Street CSO River Blakewater 0 0h -
United Utilities Back Queen's Park Road CSO Culvert Pringle St 0 0h -
United Utilities PHILLIPS ROAD CSO River Blakewater V Sws 0 0h -
United Utilities PRINGLE STREET CSO River Blakewater 0 0h -
United Utilities Queens Park Road CSO Queens Park Culvert 0 0h -
United Utilities BROWNHILL DRIVE CSO River Blakewater 0 0h -
United Utilities Ramsgreave Drive CSO River Blakewater 0 0h -
United Utilities Appleby Street CSO River Blakewater 0 0h -
United Utilities Lark Hill/Brook House Lane CSO River Blakewater 0 0h -
United Utilities Revidge Road/Preston New Road Arley Brook 0 0h -
United Utilities DAISY LANE CSO River Blakewater 0 0h -
United Utilities Fielden Street CSO River Blakewater 0 0h -
United Utilities Great Bolton Street CSO River Blakewater 0 0h -
United Utilities PRINGLE STREET CSO River Blakewater 0 0h -
United Utilities Gorse Street CSO River Darwen 0 0h -
United Utilities WHALLEY RANGE / MILLHAM STREET CSO River Blakewater Via Sws 0 0h -
United Utilities SHARPLES STREET CSO River Darwen 0 0h -
United Utilities WHALLEY OLD ROAD / PROVIDENCE STREET CSO Little Harwood Brook 0 0h -
United Utilities Whalley Range CSO River Blakewater 0 0h -
United Utilities Thwaites Brewery Yard CSO River Blakewater 0 0h -
United Utilities Witton Tanks CSO River Blakewater 0 0h -
United Utilities Aqueduct Road CSO River Darwen 0 0h -
United Utilities GATE STREET CSO River Blakewater 0 0h -
United Utilities WELLINGTON ROAD CSO River Darwen 0 0h -
United Utilities Merchants Landing (Culvert Street) CSO Culvert Culvert St 0 0h -
United Utilities Bolton Road CSO River Darwen 0 0h -
United Utilities DAISY LANE CSO River Blakewater 0 0h 0 h
United Utilities VICTORIA STREET CSO River Blakewater 0 0h -
United Utilities Philips Road CSO River Blakewater 0 0h -

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. 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.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.