Top of the Poops | Constituency Sewage Map | Leigh and Atherton

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Live data for Leigh and Atherton in 2026

So far this year (as of 18 May 2026, 12:00) there has been 357 hours of sewage overflows, from 67 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Leigh and Atherton in 2025

29 Sites polluted by United Utilities

484 sewage dumps

1,907 hours duration

That's 2.65 months. On average 1.3 times a day

Change Over Time

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Constituencies near Leigh and Atherton

Waterways in Leigh and Atherton

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Leigh and Atherton in 2025. 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
United Utilities	Pennington Brook	LEIGH STW	47	454	86
United Utilities	Hindsford Brook/Shakerley Broo	YORK AVE/CRAWFORD AVENUE CSO	52	188	84.95
United Utilities	Bedford Brook Glaze Brook	PARK LANE CSO 50098	23	185	99.1
United Utilities	Hindsford Brook	FULWELL AVENUE CSO	21	149	100
United Utilities	Hindsford Brook	TYLDESLEY CSO	21	143	100
United Utilities	Bedford Brook	HIGH BRIDGE COMBINED SEWER OVERFLOW	49	127	99
United Utilities	Shakerley Brook	SHAKERLEY ROAD NO2 CSO	19	99	99.5
United Utilities	Cop Brook	ROBIN HOOD PS	43	78	100
United Utilities	Colling Lane Brook, Pen Leach	STIRLING CLOSE CSO 508NA	13	73	100
United Utilities	Westleigh Brook	WIGAN ROAD/SIDDELEY STREET CSO	23	68	100
United Utilities	Westleigh Brook	KIRKHALL LANE/VICTORIA STREET CSO	41	58	99.9
United Utilities	Westleigh Brook	WESTLEIGH ETHERSTONE MD CSO 508AP	13	51	92.2
United Utilities	Bedford Brook	MANCHESTER RD/PARK LANE CSO	23	50	99.9
United Utilities	Collier Brook	GLOUCESTER ST CSO	3	26	100
United Utilities	Bedford Brook	MILL LANE LEIGH CSO 50079	15	21	100
United Utilities	Pennington Brook	PENNINGTON MILL BRIDGE CSO	12	21	100
United Utilities	Pennington Brook Via Sws	WARRINGTON ROAD CSO	1	20	97.3
United Utilities	Shakerley Brook	ELLESMERE STREET CSO	13	18	81.8
United Utilities	Pen Leach Brook	LEIGH SSO	8	15	79.6
United Utilities	Pen Leach Brook	QUEENSWAY PS	12	13	99.8
United Utilities	Millingford Brook	MILL LANE (GOLBORNE) CSO	2	13	97.4
United Utilities	Westleigh Brook	KIRIBATI WAY CSO	3	6	99.9
United Utilities	Hey Brook	CRANKWOOD ROAD PUMPING STATION	2	4	99.9
United Utilities	Collier Brook	LOVERS LANE/LEIGH ROAD CSO (50080)	5	4	99.9
United Utilities	Bedford Brook	CENTRAL PUMPING STATION	12	4	100
United Utilities	Westleigh Brook	TWIST LANE/WESTLEIGH BRIDGE CSO	3	3	87.4
United Utilities	Westleigh Brook	FIRS LANE/URMSTON STREET CSO	2	0	99.9
United Utilities	Pennington Brook	MATHER LANE	2	0	99.6
United Utilities	Pennington Brook Via Sws	NEWLANDS ROAD CSO	1	0	99.8
United Utilities	Shakerley Brook	ELLESMERE STREET CSO	0	0	99.9
United Utilities	Hindsford Brook	FACTORY ST/CHARLES ST CSO	0	0	91.8

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.

Analysing sewage pollution by the Water Industry

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Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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