It's a Dirty Business

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

Wigan - 2025 Sewage

Polluted by sewage 1,598 hours in 2025 , monitoring offline 3,143 hours , potential overflows 17 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 Wigan 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 Lisa Nandy (Labour) - Find out more about their interests, donors, and voting at They Work For You

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Daily Data

Jan - 484 hours , 5 potential
Feb - 28 hours , 674 offline
Mar - 10 hours , 744 offline
Apr - 7 hours , 206 offline
May - 34 hours , 1 potential
Jun - 48 hours , 0 potential
Jul - 8 hours , 0 offline
Aug - 97 hours , 6 potential
Sept - 309 hours , 1 potential
Oct - 134 hours , 1 potential
Nov - 213 hours , 0 offline
Dec - 222 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Irvine's Farm CSO Ackhurst Brook R Douglas 54 175 h 30m -
United Utilities Central Park CSO River Douglas 65 151 h 35m 4 h
United Utilities ST MARYS ROAD CSO Of Ince Brook Via Sws 47 130 h 24m 8 h
United Utilities Wigan Road Shevington CSO Mill Brook 42 119 h 37m -
United Utilities Chorley Road M.H E36 Standish River Douglas 51 102 h 18m -
United Utilities Gower Street CSO River Douglas 29 97 h 10m -
United Utilities Central Park CSO River Douglas 15 82 h 43m -
United Utilities Greenwood Avenue CSO Close Brook 32 76 h 15m 10 h
United Utilities WESTMOORLAND STREET / SCHOLES CSO Clarington Brook 10 75 h 4m 743 h
United Utilities Bradley Lane CSO River Mersey 36 68 h 54m 0 h
United Utilities Gathurst PS River Douglas 21 57 h 58m -
United Utilities WIG0165A South of Ball Street CSO River Douglas Via Sws 51 56 h 28m 2,377 h
United Utilities Irvine's Farm CSO Ackhurst Brook R Douglas 15 53 h 54m -
United Utilities Arbour Lane Pumping Station (50033) (WIG0029 ) Mill Brook 16 44 h 43m -
United Utilities Gathurst Lane (Shevington) CSO Pendleton Brook By Sws 21 38 h 44m -
United Utilities Wigan Road Shevington CSO Mill Brook 13 32 h 38m -
United Utilities HOLLY STREET / NEW SPRINGS CSO Yellow Brook 11 30 h 36m 0 h
United Utilities Close Brook CSO Close Brook R Douglas 5 22 h 41m -
United Utilities Chorley Road M.H E36 Standish River Douglas 11 21 h 54m -
United Utilities Greenwood Avenue CSO Close Brook 5 21 h 52m -
United Utilities Lynton Avenue CSO Culverted River Douglas 20 20 h 50m -
United Utilities Gower Street CSO River Douglas 7 20 h 22m -
United Utilities Bradshaw Street CSO River Douglas Via Sws 17 19 h 28m -
United Utilities Chestnut Road CSO River Douglas Via Sws 9 12 h 26m 1 h
United Utilities Old Fold Road CSO Borsdane Brook 2 12 h 6m -
United Utilities Bradley Lane CSO River Mersey 6 11 h 24m 0 h
United Utilities Springfield Road CSO River Douglas Via Sws 13 11 h 8m 1 h
United Utilities Beech Hill Lane CSO Billy Pit Brook Lpool Canal 3 9 h 7m -
United Utilities Gathurst PS River Douglas 3 3 h 46m -
United Utilities PLATT LANE CSO Platt Brook Via Sws 2 3 h 46m 0 h
United Utilities WIG0165A South of Ball Street CSO River Douglas Via Sws 4 3 h 46m -
United Utilities Gathurst Lane (Shevington) CSO Pendleton Brook By Sws 4 3 h 30m -
United Utilities Arbour Lane Pumping Station (50033) (WIG0029 ) Mill Brook 2 2 h 4m -
United Utilities NW Junction Woodhouse Lane CSO River Douglas 3 1 h 6m 9 h
United Utilities Bradshaw Street CSO River Douglas Via Sws 2 1 h 2m -
United Utilities Lynton Avenue CSO Culverted River Douglas 2 1 h -
United Utilities ST MARYS ROAD CSO Of Ince Brook Via Sws 1 0 h 36m -
United Utilities ORMSKIRK ROAD / FRANCE STREET CSO River Douglas 1 0 h 14m 0 h
United Utilities Close Brook CSO Close Brook R Douglas 0 0 h -
United Utilities WESTMOORLAND STREET / SCHOLES CSO Clarington Brook 0 0 h -
United Utilities HOLLY STREET / NEW SPRINGS CSO Yellow Brook 0 0 h -
United Utilities ORMSKIRK ROAD / FRANCE STREET CSO River Douglas 0 0 h -
United Utilities Old Fold Road CSO Borsdane Brook 0 0 h -
United Utilities Springfield Road CSO River Douglas Via Sws 0 0 h -
United Utilities Chestnut Road CSO River Douglas Via Sws 0 0 h -
United Utilities Beech Hill Lane CSO Billy Pit Brook Lpool Canal 0 0 h -
United Utilities NW Junction Woodhouse Lane CSO River Douglas 0 0 h -
United Utilities PLATT LANE CSO Platt Brook Via Sws 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.