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Leigh and Atherton - 2025 Sewage

Polluted by sewage 2,084 hours in 2025 , monitoring offline 15,269 hours , potential overflows 22 hours

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

Which Year?

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Leigh and Atherton 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.

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Daily Data

Jan - 898 hours , 13 potential
Feb - 23 hours , 968 offline
Mar - 42 hours , 2,050 offline
Apr - 1 hours , 626 offline
May - 4 hours , 240 offline
Jun - 3 hours , 1,024 offline
Jul - 25 hours , 1 potential
Aug - 5 hours , 1,627 offline
Sept - 352 hours , 6 potential
Oct - 134 hours , 1,488 offline
Nov - 261 hours , 1 potential
Dec - 332 hours , 918 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities LEIGH WwTW Pennington Brook 25 315 h 30m 0 h
United Utilities Mill Lane (Golborne) CSO Dane-In-Shaw Brook 11 242 h 52m -
United Utilities LEIGH WwTW Pennington Brook 18 166 h 6m -
United Utilities Park Lane CSO Bedford Brook Glaze Brook 26 164 h 18m -
United Utilities Tyldesley Western CSO Moss Brook 19 134 h 2m -
United Utilities Fulwell Avenue CSO Hindsford Brook 19 114 h 43m -
United Utilities HIGH BRIDGE CSO Bedford Brook 36 105 h 5m 0 h
United Utilities Shakerley Road No 2 CSO Shakerley Brook 16 76 h 14m 0 h
United Utilities Stirling Close CSO Colling Lane Brook, Pen Leach 13 61 h 56m -
United Utilities Robin Hood PS Cop Brook 24 61 h 14m 2 h
United Utilities Wigan Road/Siddeley Street CSO Westleigh Brook 17 56 h 49m -
United Utilities Park Lane CSO Bedford Brook Glaze Brook 7 52 h 38m 0 h
United Utilities Westleigh/Etherstone Main Drainage CSO Westleigh Brook 14 51 h 12m 683 h
United Utilities Manchester Road/Park Lane CSO Bedford Brook 21 48 h 34m 6 h
United Utilities Kirkhall Lane/Victoria Street CSO Westleigh Brook 29 48 h 18m 4 h
United Utilities Mill Lane (Leigh) CSO Bedford Brook 12 37 h 43m -
United Utilities Fulwell Avenue CSO Hindsford Brook 4 36 h 6m -
United Utilities Tyldesley Western CSO Moss Brook 3 32 h 45m -
United Utilities Gloucester street CSO Collier Brook 3 26 h 47m -
United Utilities Shakerley Road No 2 CSO Shakerley Brook 4 25 h 44m -
United Utilities York Avenue CSO Hindsford Brook/Shakerley Broo 14 22 h 17m 1,002 h
United Utilities Pennington Mill bridge CSO Pennington Brook 10 20 h 20m 0 h
United Utilities Warrington Road CSO Bowers Brook 3 20 h 19m -
United Utilities Ellesmere Street CSO Shakerley Brook 10 20 h 9m 0 h
United Utilities Robin Hood PS Cop Brook 7 19 h 35m 0 h
United Utilities HIGH BRIDGE CSO Bedford Brook 6 17 h 42m -
United Utilities Higher Folds (Queensway) PS Pen Leach Brook 3 13 h 30m -
United Utilities Stirling Close CSO Colling Lane Brook, Pen Leach 1 13 h 26m 0 h
United Utilities Green Lane Leigh Pen Leach Brook 6 13 h 19m 7 h
United Utilities Central Pumping Station Bedford Brook 9 10 h 7m 418 h
United Utilities Kiribati Way CSO Westleigh Brook 11 9 h 16m 797 h
United Utilities Wigan Road/Siddeley Street CSO Westleigh Brook 3 9 h 3m -
United Utilities Robin Hood PS Cop Brook 6 8 h 43m 0 h
United Utilities Kirkhall Lane/Victoria Street CSO Westleigh Brook 5 8 h 4m -
United Utilities Crankwood Road PS Hey Brook 2 4 h 59m -
United Utilities Lovers Lane/Leigh Road CSO Collier Brook 4 4 h 3m -
United Utilities Twist Lane/Westleigh Bridge CSO Westleigh Brook 4 4 h 12 h
United Utilities Green Lane Leigh Pen Leach Brook 1 1 h 38m -
United Utilities Manchester Road/Park Lane CSO Bedford Brook 3 1 h 32m -
United Utilities Central Pumping Station Bedford Brook 1 0 h 56m -
United Utilities Mather Lane CSO Pennington Brook 2 0 h 40m -
United Utilities York Avenue CSO Hindsford Brook/Shakerley Broo 2 0 h 36m -
United Utilities York Avenue CSO Hindsford Brook/Shakerley Broo 2 0 h 24m 6,783 h
United Utilities Ellesmere Street CSO Shakerley Brook 1 0 h 24m -
United Utilities FIRS LANE / URMSTON STREET CSO Westleigh Brook 1 0 h 22m 31 h
United Utilities Pennington Mill bridge CSO Pennington Brook 1 0 h 22m -
United Utilities Factory Street/Charles Street CSO, Leigh Hindsford Brook 6 0 h 14m 966 h
United Utilities Newlands Road CSO Pennington Brook Via Sws 1 0 h 14m 0 h
United Utilities Mather Lane CSO Pennington Brook 0 0 h -
United Utilities Mill Lane (Leigh) CSO Bedford Brook 0 0 h -
United Utilities York Avenue CSO Hindsford Brook/Shakerley Broo 0 0 h 4,570 h
United Utilities Twist Lane/Westleigh Bridge CSO Westleigh Brook 0 0 h -
United Utilities FIRS LANE / URMSTON STREET CSO Westleigh Brook 0 0 h -
United Utilities Newlands Road CSO Pennington Brook Via Sws 0 0 h -
United Utilities Higher Folds (Queensway) PS Pen Leach Brook 0 0 h -
United Utilities Crankwood Road PS Hey Brook 0 0 h -
United Utilities Primrose Street/Ellesmere Street CSO Shakerley Brook 0 0 h -
United Utilities Westleigh/Etherstone Main Drainage CSO Westleigh Brook 0 0 h -
United Utilities Warrington Road CSO Bowers Brook 0 0 h -
United Utilities Robin Hood PS Cop Brook 0 0 h -
United Utilities Mill Lane (Golborne) CSO Dane-In-Shaw Brook 0 0 h -
United Utilities LEIGH WwTW Pennington Brook 0 0 h -
United Utilities Primrose Street/Ellesmere Street CSO Shakerley Brook 0 0 h -
United Utilities Lovers Lane/Leigh Road CSO Collier Brook 0 0 h -
United Utilities Kiribati Way CSO Westleigh Brook 0 0 h -
United Utilities Gloucester street CSO Collier Brook 0 0 h -
United Utilities Factory Street/Charles Street CSO, Leigh Hindsford Brook 0 0 h 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.