Oldham West, Chadderton and Royton was polluted by sewage 540 times in 2024
lasting 1,837 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 Oldham West, Chadderton and Royton in 2025
So far this year (as of Apr 16, 2025, 5:30 PM) there has been 404 hours of sewage overflows
Totals for Oldham West, Chadderton and Royton in 2024
22 Sites polluted by United Utilities
540 sewage dumps
1,837 h duration
That's 2.55 months. On average 1.5 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 Oldham West, Chadderton and Royton, 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 Oldham West, Chadderton and Royton 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 22 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 Wince Brook OLDHAM WWTW 41 460 100
United Utilities River Irk ROYTON SETTLED STORM OVERFLOW 39 424 79.2
United Utilities Moston Brook ALFORD STREET PUMPING STATION 36 190 100
United Utilities Springs Brook SWAN MILL/DRUMMER MILL CSO 77 168 98.3
United Utilities Wince Brook S. CHADDERTON/ 40 155 13.3
United Utilities Wince Brook FOXDENTON LANE CSO 58 88 99
United Utilities Plumpton Clough SHEEPFOOT LANE CSO 53 68 99.2
United Utilities Wince Brook THE CAUSEWAY CHADDERTON WWNPS 17 54 90.6
United Utilities Wince Brook MOSTON RD/ CHADDERTON LOW LEVEL PS 28 49 96
United Utilities Moston Brook Via Sws LIMESIDE ROAD/FOX MILL CSO 21 35 92.5
United Utilities Wince Brook GREENGATE COMBINED SEWER OVERFLOW 31 34 100
United Utilities River Medlock Via Sws COAL PIT LANE CSO 17 29 99
United Utilities Stock Brook Via Sws ARKWRIGHT STREET CSO 29 28 100
United Utilities Luzley Brrok HOLDEN FOLD LANE CSO 13 11 99.5
United Utilities Plumpton Clough WESTHULME HOSPITAL CSO 7 7 99.3
United Utilities Stock Brook Culvert Via Sws HUNT LANE COMBINED SEWER OVERFLOW 9 7 100
United Utilities Spring Brook Via Sws FERNEYFIELD ROAD CSO OLD0104 6 6 99.4
United Utilities Lords Brook HOLLINWOOD CEMETERY CSO 5 5 94
United Utilities Bower Brook Via Sws SUFFOLK ST COMBINED SEWER OVERFLOW 1 3 99.8
United Utilities River Medlock HATHERSHAW CSO 1 2 95.7
United Utilities Lords Brook LIMESIDE RD/CHURCH CSO 4 2 98.7
United Utilities Plumpton Clough BOUNDARY PARK ROAD CSO 7 1 99.4

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.