It's a Dirty Business

Watch Channel 4's documentary about the state of the water industry.

Burnley - 2025 Sewage

Polluted by sewage 2,007 hours in 2025 , monitoring offline 1,273 hours , potential overflows 48 hours

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

Which Year?

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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 Burnley for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

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.

Take Action

Your local MP is Oliver Ryan (Labour/Co-operative) - Find out more about their interests, donors, and voting at They Work For You

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Daily Data

Jan - 673 hours , 43 potential
Feb - 16 hours , 1 offline
Mar - 2 hours , 4 offline
Apr - 2 hours , 41 offline
May - 39 hours , 591 offline
Jun - 66 hours , 581 offline
Jul - 22 hours , 3 offline
Aug - 6 hours , 0 offline
Sept - 345 hours , 3 potential
Oct - 268 hours , 0 potential
Nov - 222 hours , 0 potential
Dec - 340 hours , 0 potential
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Thank you so much to everyone who contributed to the site in 2025 to keep it running. We do rely on your contributions! Developing and running a website costs real money.
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Clitheroe Road CSO Pendle Water 65 367 h 44m 0 h
United Utilities BURNLEY WwTW River Calder 26 311 h 7m -
United Utilities Crow Wood Farm CSO River Calder 52 181 h 11m -
United Utilities Lindred Road CSO Pendle Water 29 142 h 51m -
United Utilities OPP 76 BURNLEY ROAD CSO River Calder 71 132 h 39m 3 h
United Utilities BURNLEY WwTW River Calder 17 124 h 20m -
United Utilities Altham Outfall CSO River Calder 30 121 h 38m -
United Utilities Crow Wood Farm CSO River Calder 17 79 h 32m -
United Utilities INSKIP STREET CSO River Calder 38 74 h 2m 24 h
United Utilities Clitheroe Road CSO Pendle Water 12 63 h 58m -
United Utilities Honey Holme Lane CSO River Calder 15 50 h 32m 39 h
United Utilities Altham Outfall CSO River Calder 14 40 h 32m -
United Utilities Lanebottom WwTW Pig Hole Clough 13 38 h 40m -
United Utilities Lindred Road CSO Pendle Water 8 38 h 12m -
United Utilities Padiham Leisure Centre CSO River Calder 19 37 h 47m 0 h
United Utilities OPP 76 BURNLEY ROAD CSO River Calder 15 32 h 56m -
United Utilities 92 Burnley Road CSO Limy Water 8 25 h 52m 20 h
United Utilities Station Road (Padiham) CSO River Calder 34 24 h 56m 45 h
United Utilities INSKIP STREET CSO River Calder 13 21 h 54m -
United Utilities SLADE LANE CSO Dean Clough River Calder 9 18 h 50m -
United Utilities Timber Street CSO Pendle Water 13 18 h 25m -
United Utilities Station Road (Padiham) CSO River Calder 12 14 h 6m 1 h
United Utilities 92 Burnley Road CSO Limy Water 7 13 h 4m 0 h
United Utilities BROOKLANDS ROAD / TODMORDEN ROAD CSO River Calder 5 11 h 48m 3 h
United Utilities Lanebottom WwTW Pig Hole Clough 6 8 h 24m -
United Utilities Honey Holme Lane CSO River Calder 4 5 h 6m 0 h
United Utilities Bear Street CSO Sweet Clough Green Brook 5 4 h 14m 0 h
United Utilities Timber Street CSO Pendle Water 3 1 h 48m -
United Utilities Padiham Leisure Centre CSO River Calder 4 1 h 20m -
United Utilities Park Road CSO River Calder 1 0 h 4m -
United Utilities Levant Mill Footbridge CSO Green Brook 0 0 h -
United Utilities Sackville Street/Montague Street CSO Pendle Water Via Culvert 0 0 h 1,153 h
United Utilities Waterbarn Street/Barden Lane Combined Sewer Overflow River Irwell 0 0 h 0 h
United Utilities Thursby Road/Basnett Street River Burn 0 0 h -
United Utilities SHUTTLEWORTH STREET / CALDER STREET CSO River Calder 0 0 h -
United Utilities Bear Street CSO Sweet Clough Green Brook 0 0 h -
United Utilities SLADE LANE CSO Dean Clough River Calder 0 0 h -
United Utilities Waterbarn Street/Barden Lane Combined Sewer Overflow River Irwell 0 0 h -
United Utilities Stockbridge Road Burnley CSO Green Brook 0 0 h 4 h
United Utilities SHUTTLEWORTH STREET / CALDER STREET CSO River Calder 0 0 h 3 h
United Utilities BROOKLANDS ROAD / TODMORDEN ROAD CSO River Calder 0 0 h -
United Utilities 134 Burnley Road CSO River Irwell 0 0 h -
United Utilities Thursby Road/Basnett Street River Burn 0 0 h -
United Utilities Liverpool Road (Burnley) CSO River Calder 0 0 h -
United Utilities Sackville Street/Montague Street CSO Pendle Water Via Culvert 0 0 h -
United Utilities Liverpool Road (Burnley) CSO River Calder 0 0 h 19 h
United Utilities Stockbridge Road Burnley CSO Green Brook 0 0 h -
United Utilities Levant Mill Footbridge CSO Green Brook 0 0 h -
United Utilities Park Road CSO River Calder 0 0 h -

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.