Leigh and Atherton was polluted by sewage 709 times in 2024
lasting 3,371 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
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✔ means we have experimental daily data since 2023
Live data for Leigh and Atherton in 2025
So far this year (as of Apr 16, 2025, 5:45 PM) there has been 964 hours of sewage overflows
Totals for Leigh and Atherton in 2024
30 Sites polluted by United Utilities
709 sewage dumps
3,371 h duration
That's 4.68 months. On average 1.9 times a day
Change Over Time
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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.
     Monitoring Online      Monitoring Offline      Polluting      Potentially Polluting      Unknown
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for Leigh and Atherton in 2024. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 0 of the total 31 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
United Utilities Pennington Brook LEIGH STW 58 695 99.3
United Utilities Bedford Brook Glaze Brook PARK LANE CSO 50098 65 541 100
United Utilities Collier Brook GLOUCESTER ST CSO 46 433 98.9
United Utilities Hindsford Brook TYLDESLEY CSO 44 422 99.9
United Utilities Hindsford Brook FULWELL AVENUE CSO 28 216 100
United Utilities Bedford Brook HIGH BRIDGE COMBINED SEWER OVERFLOW 63 177 99.8
United Utilities Shakerley Brook SHAKERLEY ROAD NO2 CSO 20 125 99.1
United Utilities Colling Lane Brook, Pen Leach STIRLING CLOSE CSO 508NA 16 110 98.5
United Utilities Cop Brook ROBIN HOOD PS 71 87 100
United Utilities Millingford Brook MILL LANE (GOLBORNE) CSO 12 67 100
United Utilities Westleigh Brook WIGAN ROAD/SIDDELEY STREET CSO 31 66 100
United Utilities Collier Brook LOVERS LANE/LEIGH ROAD CSO (50080) 24 65 100
United Utilities Westleigh Brook KIRKHALL LANE/VICTORIA STREET CSO 45 60 99.5
United Utilities Bedford Brook MANCHESTER RD/PARK LANE CSO 27 59 96.1
United Utilities Westleigh Brook WESTLEIGH ETHERSTONE MD CSO 508AP 16 51 97.1
United Utilities Bedford Brook MILL LANE LEIGH CSO 50079 22 32 100
United Utilities Shakerley Brook ELLESMERE STREET CSO 21 30 93
United Utilities Hindsford Brook/Shakerley Broo YORK AVE/CRAWFORD AVENUE CSO 17 25 51.25
United Utilities Pennington Brook Via Sws NEWLANDS ROAD CSO 14 18 99
United Utilities Pennington Brook Via Sws WARRINGTON ROAD CSO 7 15 99.9
United Utilities Unknown PENNINGTON MILL BRIDGE CSO 10 15 99.3
United Utilities Pen Leach Brook QUEENSWAY PS 9 13 99.8
United Utilities Bedford Brook CENTRAL PUMPING STATION 16 10 100
United Utilities Pen Leach Brook LEIGH SSO 7 9 100
United Utilities Westleigh Brook TWIST LANE/WESTLEIGH BRIDGE CSO 11 8 98.3
United Utilities Hey Brook CRANKWOOD ROAD PUMPING STATION 3 5 100
United Utilities Westleigh Brook KIRIBATI WAY CSO 1 4 99.3
United Utilities Westleigh Brook FIRS LANE/URMSTON STREET CSO 3 0 84.6
United Utilities Pennington Brook MATHER LANE 1 0 86.9
United Utilities Hindsford Brook FACTORY ST/CHARLES ST CSO 1 0 99.2
United Utilities Shakerley Brook ELLESMERE STREET CSO 0 0 92.5

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. This 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.