Leigh and Atherton - 2025 Sewage

Polluted by sewage 2,094 hours in 2025

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

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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.

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Constituencies near Leigh and Atherton

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Leigh and Atherton, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

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Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Total Duration (days)
United Utilities LEIGH WwTW Pennington Brook 25 315 h 30m 13.12
United Utilities Mill Lane (Golborne) CSO Dane-In-Shaw Brook 11 242 h 52m 10.08
United Utilities LEIGH WwTW Pennington Brook 18 166 h 6m 6.92
United Utilities Park Lane CSO Bedford Brook Glaze Brook 26 164 h 8m 6.83
United Utilities Tyldesley Western CSO Moss Brook 19 134 h 2m 5.58
United Utilities Fulwell Avenue CSO Hindsford Brook 19 114 h 43m 4.75
United Utilities HIGH BRIDGE CSO Bedford Brook 36 105 h 5m 4.38
United Utilities Shakerley Road No 2 CSO Shakerley Brook 16 76 h 42m 3.17
United Utilities Stirling Close CSO Colling Lane Brook, Pen Leach 13 61 h 56m 2.54
United Utilities Robin Hood PS Cop Brook 24 61 h 37m 2.54
United Utilities Wigan Road/Siddeley Street CSO Westleigh Brook 17 56 h 49m 2.33
United Utilities Park Lane CSO Bedford Brook Glaze Brook 7 52 h 38m 2.17
United Utilities Westleigh/Etherstone Main Drainage CSO Westleigh Brook 14 51 h 12m 2.12
United Utilities Kirkhall Lane/Victoria Street CSO Westleigh Brook 29 49 h 24m 2.04
United Utilities Manchester Road/Park Lane CSO Bedford Brook 21 48 h 34m 2
United Utilities Mill Lane (Leigh) CSO Bedford Brook 12 37 h 43m 1.54
United Utilities Fulwell Avenue CSO Hindsford Brook 4 36 h 6m 1.5
United Utilities Tyldesley Western CSO Moss Brook 3 32 h 45m 1.33
United Utilities Shakerley Road No 2 CSO Shakerley Brook 4 25 h 44m 1.04
United Utilities York Avenue CSO Hindsford Brook/Shakerley Broo 14 22 h 17m 0.92
United Utilities Ellesmere Street CSO Shakerley Brook 10 21 h 11m 0.88
United Utilities Pennington Mill bridge CSO Pennington Brook 10 20 h 20m 0.83
United Utilities Warrington Road CSO Bowers Brook 3 20 h 19m 0.83
United Utilities Gloucester street CSO Collier Brook 3 20 h 8m 0.83
United Utilities Robin Hood PS Cop Brook 7 19 h 7m 0.79
United Utilities Green Lane Leigh Pen Leach Brook 6 18 h 7m 0.75
United Utilities HIGH BRIDGE CSO Bedford Brook 6 17 h 42m 0.71
United Utilities Central Pumping Station Bedford Brook 9 13 h 33m 0.54
United Utilities Stirling Close CSO Colling Lane Brook, Pen Leach 1 13 h 26m 0.54
United Utilities Twist Lane/Westleigh Bridge CSO Westleigh Brook 4 13 h 6m 0.54
United Utilities Higher Folds (Queensway) PS Pen Leach Brook 3 10 h 44m 0.42
United Utilities Kiribati Way CSO Westleigh Brook 11 9 h 16m 0.38
United Utilities Wigan Road/Siddeley Street CSO Westleigh Brook 3 8 h 58m 0.33
United Utilities Kirkhall Lane/Victoria Street CSO Westleigh Brook 5 8 h 4m 0.33
United Utilities Robin Hood PS Cop Brook 6 7 h 53m 0.29
United Utilities Crankwood Road PS Hey Brook 2 4 h 59m 0.17
United Utilities Lovers Lane/Leigh Road CSO Collier Brook 4 4 h 3m 0.17
United Utilities Green Lane Leigh Pen Leach Brook 1 1 h 38m 0.04
United Utilities Manchester Road/Park Lane CSO Bedford Brook 3 1 h 32m 0.04
United Utilities FIRS LANE / URMSTON STREET CSO Westleigh Brook 1 1 h 7m 0.04
United Utilities Central Pumping Station Bedford Brook 1 0 h 40m 0
United Utilities Mather Lane CSO Pennington Brook 2 0 h 40m 0
United Utilities York Avenue CSO Hindsford Brook/Shakerley Broo 2 0 h 36m 0
United Utilities York Avenue CSO Hindsford Brook/Shakerley Broo 2 0 h 24m 0
United Utilities Ellesmere Street CSO Shakerley Brook 1 0 h 24m 0
United Utilities Pennington Mill bridge CSO Pennington Brook 1 0 h 22m 0
United Utilities Newlands Road CSO Pennington Brook Via Sws 1 0 h 14m 0
United Utilities Factory Street/Charles Street CSO, Leigh Hindsford Brook 6 0 h 14m 0
United Utilities Primrose Street/Ellesmere Street CSO Shakerley Brook 0 0 h 0
United Utilities Kiribati Way CSO Westleigh Brook 0 0 h 0
United Utilities FIRS LANE / URMSTON STREET CSO Westleigh Brook 0 0 h 0
United Utilities Mather Lane CSO Pennington Brook 0 0 h 0
United Utilities Mill Lane (Golborne) CSO Dane-In-Shaw Brook 0 0 h 0
United Utilities Mill Lane (Leigh) CSO Bedford Brook 0 0 h 0
United Utilities Robin Hood PS Cop Brook 0 0 h 0
United Utilities Gloucester street CSO Collier Brook 0 0 h 0
United Utilities Factory Street/Charles Street CSO, Leigh Hindsford Brook 0 0 h 0
United Utilities Primrose Street/Ellesmere Street CSO Shakerley Brook 0 0 h 0
United Utilities Twist Lane/Westleigh Bridge CSO Westleigh Brook 0 0 h 0
United Utilities Higher Folds (Queensway) PS Pen Leach Brook 0 0 h 0
United Utilities Lovers Lane/Leigh Road CSO Collier Brook 0 0 h 0
United Utilities Warrington Road CSO Bowers Brook 0 0 h 0
United Utilities Newlands Road CSO Pennington Brook Via Sws 0 0 h 0
United Utilities Crankwood Road PS Hey Brook 0 0 h 0
United Utilities Westleigh/Etherstone Main Drainage CSO Westleigh Brook 0 0 h 0
United Utilities LEIGH WwTW Pennington Brook 0 0 h 0

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.

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© 2020-2025 Top-Of-The-Poops CC-BY-SA 4.0,
© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

Some data reproduced under Open Government Licence

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