Polluted by sewage 2,292 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 Rochdale, 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 | Field West of Ashes Lane CSO | River Beal | 47 | 354 h 30m | 14.75 |
| United Utilities | OAKENROD CSO | River Roch | 51 | 299 h 6m | 12.46 |
| United Utilities | OAKENROD CSO | River Roch | 23 | 185 h 36m | 7.71 |
| United Utilities | Oldham Road CSO | Clvrt Sec Of Sudden Brook | 62 | 180 h 1m | 7.5 |
| United Utilities | Shawclough Brook CSO | River Spodden, River Roch | 26 | 142 h 32m | 5.92 |
| United Utilities | Newhey Shaw Main Outfall CSO | River Beal | 15 | 136 h 1m | 5.67 |
| United Utilities | Smithy Bridge Road CSO | River Roch | 15 | 118 h 11m | 4.92 |
| United Utilities | Albert Royds Street CSO | River Roch | 45 | 101 h 59m | 4.21 |
| United Utilities | Bellfield Road/Beswicke Royds Street | Sanney Brook | 25 | 85 h 50m | 3.54 |
| United Utilities | Hartley Lane | Suddon Brook | 28 | 68 h 52m | 2.83 |
| United Utilities | Shawclough Brook CSO | River Spodden, River Roch | 9 | 66 h 6m | 2.75 |
| United Utilities | Milnrow Road CSO | River Roch Via Sws | 33 | 54 h 32m | 2.25 |
| United Utilities | Oakcliffe Road CSO | Culverted River Roch | 20 | 47 h 14m | 1.96 |
| United Utilities | Yorkshire Street / Oswald Street CSO | Hey Brook River Roch | 20 | 41 h 33m | 1.71 |
| United Utilities | Junction of Smith Street/John Street CSO | River Roch | 28 | 41 h 9m | 1.71 |
| United Utilities | Smithy Bridge Road CSO | River Roch | 5 | 40 h 37m | 1.67 |
| United Utilities | Millgate CSO | River Roch | 16 | 38 h 23m | 1.58 |
| United Utilities | Newhey Shaw Main Outfall CSO | River Beal | 6 | 32 h 57m | 1.33 |
| United Utilities | Oldham Road CSO | Clvrt Sec Of Sudden Brook | 11 | 31 h 40m | 1.29 |
| United Utilities | Field West of Ashes Lane CSO | River Beal | 3 | 29 h 15m | 1.21 |
| United Utilities | Albert Royds Street CSO | River Roch | 12 | 28 h 34m | 1.17 |
| United Utilities | Waterhouse Close (Wardle) CSO | Ash Brook | 15 | 22 h 28m | 0.92 |
| United Utilities | Newbold Street CSO | Stanney Brook | 18 | 19 h 42m | 0.79 |
| United Utilities | Milnrow Road CSO | River Roch Via Sws | 8 | 13 h 24m | 0.54 |
| United Utilities | St. Mary's Gate / Cheetham Street CSO | Johnson Brook | 15 | 13 h 18m | 0.54 |
| United Utilities | Stanney Road CSO | Stanney Brook | 6 | 12 h 40m | 0.5 |
| United Utilities | Dyehouse Lane CSO | Ash Brook | 3 | 11 h 55m | 0.46 |
| United Utilities | Water Street | River Dean | 3 | 11 h 38m | 0.46 |
| United Utilities | Drake Street CSO | Culverted River Roch Via Sws | 4 | 10 h 12m | 0.42 |
| United Utilities | Bellfield Road/Beswicke Royds Street | Sanney Brook | 8 | 9 h 10m | 0.38 |
| United Utilities | Yorkshire Street CSO | River Roch | 1 | 7 h | 0.29 |
| United Utilities | Oakcliffe Road CSO | Culverted River Roch | 5 | 5 h 34m | 0.21 |
| United Utilities | Yorkshire Street / Oswald Street CSO | Hey Brook River Roch | 4 | 5 h 32m | 0.21 |
| United Utilities | Hartley Lane | Suddon Brook | 4 | 5 h 30m | 0.21 |
| United Utilities | Toad Lane - High Street CSO | River Roch | 8 | 5 h 24m | 0.21 |
| United Utilities | Millgate CSO | River Roch | 4 | 3 h 52m | 0.12 |
| United Utilities | Manchester Road (Near the Esplanade) CSO | River Roch Via Sws | 10 | 3 h 48m | 0.12 |
| United Utilities | Newbold Street CSO | Stanney Brook | 5 | 2 h 36m | 0.08 |
| United Utilities | Junction of Smith Street/John Street CSO | River Roch | 4 | 1 h 50m | 0.04 |
| United Utilities | St. Mary's Gate / Cheetham Street CSO | Johnson Brook | 2 | 0 h 38m | 0 |
| United Utilities | Milnrow Road/Pine Street | River Roch Via Sws | 5 | 0 h 38m | 0 |
| United Utilities | Trafalgar Street/Ramsey Street Combined Sewer Overflow | River Roch Via Sws | 2 | 0 h 36m | 0 |
| United Utilities | Dyehouse Lane CSO | Ash Brook | 2 | 0 h 16m | 0 |
| United Utilities | Milnrow Road/Fishwick Street CSO | River Roch Via Sws | 1 | 0 h 6m | 0 |
| United Utilities | Yorkshire Street CSO | River Roch | 1 | 0 h 4m | 0 |
| United Utilities | Albert Royds Street CSO | River Roch | 1 | 0 h 2m | 0 |
| United Utilities | Cheetham Street / St MaryΓ’β¬β’s Gate CSO (359KZ-CO2) | Culverted Section Of River Roch | 0 | 0 h | 0 |
| United Utilities | Waterhouse Close (Wardle) CSO | Ash Brook | 0 | 0 h | 0 |
| United Utilities | Bond Street CSO | Hey Brook Via Sws | 0 | 0 h | 0 |
| United Utilities | Drake Street CSO | Culverted River Roch Via Sws | 0 | 0 h | 0 |
| United Utilities | Cheetham Street / St MaryΓ’β¬β’s Gate CSO (359KZ-CO2) | Culverted Section Of River Roch | 0 | 0 h | 0 |
| United Utilities | Union Street CSO (359KZ-CO1) | Culverted Section Of River Roch | 0 | 0 h | 0 |
| United Utilities | Greenbank Road | River Weaver | 0 | 0 h | 0 |
| United Utilities | Manchester Road (Near the Esplanade) CSO | River Roch Via Sws | 0 | 0 h | 0 |
| United Utilities | Trafalgar Street/Ramsey Street Combined Sewer Overflow | River Roch Via Sws | 0 | 0 h | 0 |
| United Utilities | Albert Royds Street CSO | River Roch | 0 | 0 h | 0 |
| United Utilities | Water Street | River Dean | 0 | 0 h | 0 |
| United Utilities | Bond Street CSO | Hey Brook Via Sws | 0 | 0 h | 0 |
| United Utilities | Peppermint Bridge CSO | Piethorne Brook Rvr Beal | 0 | 0 h | 0 |
| United Utilities | Milnrow Road/Pine Street | River Roch Via Sws | 0 | 0 h | 0 |
| United Utilities | Stanney Road CSO | Stanney Brook | 0 | 0 h | 0 |
| United Utilities | Union Street CSO (359KZ-CO1) | Culverted Section Of River Roch | 0 | 0 h | 0 |
| United Utilities | Milnrow Road/Fishwick Street CSO | River Roch Via Sws | 0 | 0 h | 0 |
| United Utilities | Toad Lane - High Street CSO | River Roch | 0 | 0 h | 0 |
| United Utilities | Peppermint Bridge CSO | Piethorne Brook Rvr Beal | 0 | 0 h | 0 |
| United Utilities | Greenbank Road | River Weaver | 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.