Top of the Poops | Constituency Sewage Map | Oldham West, Chadderton and Royton

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Live data for Oldham West, Chadderton and Royton in 2026

So far this year (as of 12 Aug 2026, 21:46) there has been 404 hours of sewage overflows, from 46 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Oldham West, Chadderton and Royton in 2025

22 Sites polluted by United Utilities

471 sewage dumps

1,597 hours duration

That's 2.22 months. On average 1.3 times a day

Change Over Time

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Constituencies near Oldham West, Chadderton and Royton

Waterways in Oldham West, Chadderton and Royton

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Oldham West, Chadderton and Royton 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	Wince Brook	OLDHAM WWTW	38	368	99.8
United Utilities	River Irk	ROYTON SETTLED STORM OVERFLOW	34	329	92.3
United Utilities	Moston Brook	ALFORD STREET PUMPING STATION	28	218	100
United Utilities	Wince Brook	S. CHADDERTON/	54	209	95.7
United Utilities	Springs Brook	SWAN MILL/DRUMMER MILL CSO	54	86	87.6
United Utilities	Wince Brook	FOXDENTON LANE CSO	52	80	97
United Utilities	Plumpton Clough	SHEEPFOOT LANE CSO	55	69	99.3
United Utilities	River Medlock Via Sws	COAL PIT LANE CSO	15	42	100
United Utilities	Stock Brook Via Sws	ARKWRIGHT STREET CSO	41	41	99.8
United Utilities	Wince Brook	MOSTON RD/ CHADDERTON LOW LEVEL PS	13	35	96.8
United Utilities	Bower Brook Via Sws	SUFFOLK ST COMBINED SEWER OVERFLOW	26	27	100
United Utilities	Wince Brook	GREENGATE COMBINED SEWER OVERFLOW	14	16	99.8
United Utilities	Wince Brook	THE CAUSEWAY CHADDERTON WWNPS	11	14	98.3
United Utilities	Luzley Brrok	HOLDEN FOLD LANE CSO	10	12	99.7
United Utilities	Lords Brook	HOLLINWOOD CEMETERY CSO	5	12	98.6
United Utilities	River Medlock	HATHERSHAW CSO	3	9	94.3
United Utilities	Spring Brook Via Sws	FERNEYFIELD ROAD CSO OLD0104	4	7	100
United Utilities	Stock Brook Culvert Via Sws	HUNT LANE COMBINED SEWER OVERFLOW	3	6	99.9
United Utilities	Plumpton Clough	WESTHULME HOSPITAL CSO	3	5	100
United Utilities	Lords Brook	LIMESIDE RD/CHURCH CSO	3	3	99.8
United Utilities	Plumpton Clough	BOUNDARY PARK ROAD CSO	3	1	100
United Utilities	Moston Brook Via Sws	LIMESIDE ROAD/FOX MILL CSO	2	0	100

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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