It's a Dirty Business

Watch Channel 4's documentary about the state of the water industry, then sign the petition to bring water back to public ownership.

Chorley - Live Sewage

Polluted by sewage 960 hours in 2026 , monitoring offline 1,317 hours , potential overflows 31 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

Select the constituency from the drop-down
✔ 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 Chorley 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.

Take Action

Your local MP is Lindsay Hoyle (Speaker) - Find out more about their interests, donors, and voting at They Work For You

Share this page, post a message, and tell others about the huge problem of sewage pollution across the UK

Daily Data

Jan - 333 hours , 30 potential
Feb - 336 hours , 0 potential
Mar - 239 hours , 0 potential
Apr - 17 hours , 720 offline
May - 32 hours , 420 offline
Jun - 0 hours
Jul - 0 hours
We need your support!

Please consider a one-off or small recurring donation. We need your help to keep this site going.

Donate Now

Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Withnell Fold PS Kyln Clough, R Lostock 34 246h 10m -
United Utilities Near Harrison's Farm CSO River Douglas 27 203h 4m -
United Utilities Coppull New Road/Butterworth Brow CSO River Yarrow 31 129h 47m 1 h
United Utilities Abbey Village Pumping Station (12001) (CHR0080) River Roddlesworth 14 94h 26m -
United Utilities Chorley WwTW River Yarrow 9 68h 5m 25 h
United Utilities O/S 8 HARDY DRIVE CSO River Chor 42 61h 46m 8 h
United Utilities Chorley Lower Works PS River Yarrow 11 49h 30m -
United Utilities Adjacent Duxbury Mill Pumping Station Combined Sewer Overflow (CHR0024) River Yarrow 16 22h 56m -
United Utilities Earls Way CSO Chapel Brook 14 18h 40m -
United Utilities Lodge Bank PS Brinscall Brook 4 17h 46m -
United Utilities Lancaster Lane CSO Mill Brook 11 10h 16m -
United Utilities Clover Road/Butterworth Brow CSO Sws To River Yarrow 9 7h 21m -
United Utilities Moor Road/Eaves Green Road CSO River Yarrow 6 6h 40m -
United Utilities Baganley Froom CSO Black Brook River Yarrow 2 5h 24m -
United Utilities Eaves Green Road CSO River Yarrow 3 4h -
United Utilities Off Bridge Street PS Kenyon Brook 1 3h 56m -
United Utilities Kem Mill Lane CSO River Lostock 1 3h 30m -
United Utilities Cowling Brow CSO Black Brook 1 3h 8m -
United Utilities Limbrick Pumping Station (12024) (CHR0030) River Yarrow 1 2h 5m -
United Utilities Common Bank Lane CSO River Chor Diversion Channel 1 0h 54m -
United Utilities Eaves Green Brook CSO River Yarrow 2 0h 44m -
United Utilities Clover Road PS River Yarrow 1 0h 26m -
United Utilities 96 COLLINGWOOD ROAD CSO Clvrted River Chor 1 0h 12m -
United Utilities Glencroft PS Ransnap Brook 0 0h -
United Utilities 96 COLLINGWOOD ROAD CSO Clvrted River Chor 0 0h -
United Utilities Common Bank Lane CSO River Chor Diversion Channel 0 0h -
United Utilities Mavis Drive CSO Clancutt Brook 0 0h -
United Utilities Moor Road/Eaves Green Road CSO River Yarrow 0 0h -
United Utilities Lancaster Lane CSO Mill Brook 0 0h -
United Utilities Eaves Green Road CSO River Yarrow 0 0h -
United Utilities FRIDAY STREET CSO River Chor 0 0h -
United Utilities Heapey CSO Black Brook, R Yarrow 0 0h -
United Utilities Parklands CSO River Chor River Yarrow 0 0h -
United Utilities Chorley WwTW River Yarrow 0 0h -
United Utilities Clover Road PS River Yarrow 0 0h -
United Utilities Coppull New Road/Butterworth Brow CSO River Yarrow 0 0h -
United Utilities Hewlett Avenue CSO Tanyard Brook 0 0h -
United Utilities Duxbury Mill Farm PS River Yarrow 0 0h -
United Utilities Abbey Village Pumping Station (12001) (CHR0080) River Roddlesworth 0 0h -
United Utilities Withnell Fold PS Kyln Clough, R Lostock 0 0h -
United Utilities Heapey CSO Black Brook, R Yarrow 0 0h -
United Utilities Grimeford Lane PS River Douglas 0 0h -
United Utilities Kem Mill Lane CSO River Lostock 0 0h -
United Utilities Lydd Grove PS River Chor 0 0h 1,314 h
United Utilities Chorley Lower Works PS River Yarrow 0 0h -
United Utilities Parklands CSO River Chor River Yarrow 0 0h -
United Utilities Near Harrison's Farm CSO River Douglas 0 0h -
United Utilities Off Bridge Street PS Kenyon Brook 0 0h -
United Utilities Adjacent Duxbury Mill Pumping Station Combined Sewer Overflow (CHR0024) River Yarrow 0 0h -
United Utilities Lydd Grove PS River Chor 0 0h -
United Utilities FRIDAY STREET CSO River Chor 0 0h -
United Utilities Grimeford Lane PS River Douglas 0 0h -
United Utilities Glencroft PS Ransnap Brook 0 0h -
United Utilities Mavis Drive CSO Clancutt Brook 0 0h -
United Utilities Limbrick Pumping Station (12024) (CHR0030) River Yarrow 0 0h -
United Utilities Earls Way CSO Chapel Brook 0 0h -
United Utilities O/S 8 HARDY DRIVE CSO River Chor 0 0h -
United Utilities Baganley Froom CSO Black Brook River Yarrow 0 0h -
United Utilities Duxbury Mill Farm PS River Yarrow 0 0h -
United Utilities Eaves Green Brook CSO River Yarrow 0 0h -
United Utilities Cowling Brow CSO Black Brook 0 0h -
United Utilities Lodge Bank PS Brinscall Brook 0 0h -
United Utilities Clover Road/Butterworth Brow CSO Sws To River Yarrow 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.