Polluted by sewage 2,877 hours in 2025
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We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Worsley and Eccles, 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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Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| United Utilities | TYLDESLEY WwTW | Moss Brook | 29 | 371 h | 15.46 |
| United Utilities | IRLAM WwTW | River Glaze | 44 | 325 h 57m | 13.54 |
| United Utilities | ECCLES WwTW | Salteye Brook | 56 | 246 h 19m | 10.25 |
| United Utilities | TYLDESLEY WwTW | Moss Brook | 21 | 235 h 10m | 9.79 |
| United Utilities | Winton Outfall CSO | Salteye Brook | 57 | 215 h 58m | 8.96 |
| United Utilities | IRLAM WwTW | River Glaze | 20 | 164 h 3m | 6.83 |
| United Utilities | ECCLES WwTW | Salteye Brook | 17 | 159 h 11m | 6.62 |
| United Utilities | Vicars Hall Lane PS No. 1 & CSO | Ellen Brook | 15 | 128 h 19m | 5.33 |
| United Utilities | ECCLES WwTW | Salteye Brook | 20 | 115 h 31m | 4.79 |
| United Utilities | IRLAM WwTW | River Glaze | 28 | 111 h 27m | 4.62 |
| United Utilities | Barton Road No.1 PS & No.2 CSO | Worsley Brook | 23 | 106 h 53m | 4.42 |
| United Utilities | Booths Bank Farm CSO | Shaw Brook | 14 | 95 h 56m | 3.96 |
| United Utilities | ECCLES WwTW | Salteye Brook | 10 | 75 h 34m | 3.12 |
| United Utilities | Lancaster/Radcliffe Road | Gilda Brook | 42 | 51 h 22m | 2.12 |
| United Utilities | East Lancs Road Pumping Station (EASTL) (WIG0179) | Astley Brook | 14 | 44 h 21m | 1.83 |
| United Utilities | Newearth Road CSO | Ellen Brook | 19 | 43 h 48m | 1.79 |
| United Utilities | Winton Outfall CSO | Salteye Brook | 10 | 43 h 8m | 1.79 |
| United Utilities | Greenleach Lane CSO | Kempnough Brook | 7 | 41 h 51m | 1.71 |
| United Utilities | FAIRHILLS ROAD CSO | Manchester Ship Canal | 11 | 34 h 27m | 1.42 |
| United Utilities | Barton Road No.1 PS & No.2 CSO | Worsley Brook | 2 | 28 h 48m | 1.17 |
| United Utilities | Booths Bank Farm CSO | Shaw Brook | 2 | 27 h 20m | 1.12 |
| United Utilities | Liverpool Road/Newhall Avenue CSO | Salteye Brook Via Sws | 28 | 27 h 18m | 1.12 |
| United Utilities | Vicars Hall Lane PS No. 1 & CSO | Ellen Brook | 3 | 25 h 52m | 1.04 |
| United Utilities | Opposite No.1 Granby Road CSO | Sindsley Brook Via Sws | 24 | 24 h 3m | 1 |
| United Utilities | IRLAM WwTW | River Glaze | 8 | 22 h 53m | 0.92 |
| United Utilities | LORDS STREET / LIVERPOOL ROAD CSO | Manchester Ship Canal | 9 | 15 h 28m | 0.62 |
| United Utilities | Barton Lane/Fountain Street CSO | Manchester Ship Canal Via Sws | 9 | 14 h 59m | 0.58 |
| United Utilities | Parr Bridge/Mosley Common Road CSO | Honksford Brook | 6 | 13 h 54m | 0.54 |
| United Utilities | LORDS STREET / FIR STREET CSO | River Glaze | 2 | 12 h 4m | 0.5 |
| United Utilities | Greenleach Lane CSO | Kempnough Brook | 1 | 10 h 13m | 0.42 |
| United Utilities | ST HELENS CLOSE CSO | River Glaze Via Sws | 2 | 9 h 16m | 0.38 |
| United Utilities | ST HELENS CLOSE CSO | River Glaze Via Sws | 6 | 9 h 4m | 0.38 |
| United Utilities | Lancaster/Radcliffe Road | Gilda Brook | 6 | 8 h 6m | 0.33 |
| United Utilities | Newearth Road CSO | Ellen Brook | 2 | 5 h 48m | 0.21 |
| United Utilities | East Lancs Road Pumping Station (EASTL) (WIG0179) | Astley Brook | 2 | 5 h 1m | 0.21 |
| United Utilities | Victoria Road/Orvietto Avenue CSO | Gilda Brook Via Sws | 2 | 1 h 33m | 0.04 |
| United Utilities | Glynrene Drive CSO | Kempnough Brook Vi Sws | 2 | 1 h 20m | 0.04 |
| United Utilities | Liverpool Road/Newhall Avenue CSO | Salteye Brook Via Sws | 5 | 1 h 18m | 0.04 |
| United Utilities | Moorside School CSO (379CM) | Folly Brook And Salteye Brook. | 5 | 1 h 8m | 0.04 |
| United Utilities | Parr Bridge/Mosley Common Road CSO | Honksford Brook | 1 | 0 h 28m | 0 |
| United Utilities | FAIRHILLS ROAD CSO | Manchester Ship Canal | 2 | 0 h 18m | 0 |
| United Utilities | Fir Tree Avenue PS | Sniggley Ditch | 1 | 0 h 13m | 0 |
| United Utilities | Opposite No.1 Granby Road CSO | Sindsley Brook Via Sws | 1 | 0 h 10m | 0 |
| United Utilities | Bentcliffe Way / Wood Street CSO | Gilda Brook | 2 | 0 h 8m | 0 |
| United Utilities | LORDS STREET / LIVERPOOL ROAD CSO | Manchester Ship Canal | 1 | 0 h | 0 |
| United Utilities | Fir Tree Avenue PS | Sniggley Ditch | 0 | 0 h | 0 |
| United Utilities | Victoria Road/Orvietto Avenue CSO | Gilda Brook Via Sws | 0 | 0 h | 0 |
| United Utilities | Moorside School CSO (379CM) | Folly Brook And Salteye Brook. | 0 | 0 h | 0 |
| United Utilities | LORDS STREET / FIR STREET CSO | River Glaze | 0 | 0 h | 0 |
| United Utilities | Barton Lane/Fountain Street CSO | Manchester Ship Canal Via Sws | 0 | 0 h | 0 |
| United Utilities | Glynrene Drive CSO | Kempnough Brook Vi Sws | 0 | 0 h | 0 |
| United Utilities | Moorside Road / Ellesmere Street CSO (378JX) | Folly Brook And Salteye Brook. | 0 | 0 h | 0 |
| United Utilities | Bentcliffe Way / Wood Street CSO | Gilda Brook | 0 | 0 h | 0 |
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.