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Polluted by sewage 8,409 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 South Ribble, 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 | Eccleston Bridge D/S CSO | River Yarrow | 90 | 1,661 h 8m | 69.21 |
| United Utilities | LONGTON WwTW | Tarra Carr Gutter | 94 | 1,252 h 41m | 52.17 |
| United Utilities | Eccleston Bridge D/S CSO | River Yarrow | 45 | 996 h 25m | 41.5 |
| United Utilities | Park Avenue CSO (to Chapel Brook) | River Yarrow | 53 | 562 h 12m | 23.42 |
| United Utilities | Park Hall CSO (12069) | Syd Brook | 70 | 447 h 4m | 18.62 |
| United Utilities | LONGTON WwTW | Tarra Carr Gutter | 26 | 434 h 20m | 18.08 |
| United Utilities | Park Hall CSO (12069) | Syd Brook | 27 | 384 h 45m | 16 |
| United Utilities | LEYLAND WwTW | River Lostock | 39 | 315 h 44m | 13.12 |
| United Utilities | Cowling Farm CSO | Clancutt Brook | 20 | 271 h 26m | 11.29 |
| United Utilities | SCHOOL LANE CSO | Bannister Brook | 76 | 178 h 29m | 7.42 |
| United Utilities | Cowling Farm CSO | Clancutt Brook | 14 | 166 h 39m | 6.92 |
| United Utilities | CROSTON WwTW | River Yarrow | 18 | 157 h 29m | 6.54 |
| United Utilities | LEYLAND WwTW | River Lostock | 16 | 124 h 36m | 5.17 |
| United Utilities | Brook Lane PS | Smithy Brook | 18 | 116 h 59m | 4.83 |
| United Utilities | Brook Lane PS | Smithy Brook | 13 | 102 h 44m | 4.25 |
| United Utilities | Clifford Avenue CSO | Longton Brook | 15 | 97 h 6m | 4.04 |
| United Utilities | 74 Slater Lane (Leyland) CSO | River Lostock | 28 | 84 h 32m | 3.5 |
| United Utilities | Rear of No. 24 Bispham Avenue CSO | River Lostock | 29 | 81 h 14m | 3.38 |
| United Utilities | Robin Hood PS | Syd Brook | 23 | 77 h 52m | 3.21 |
| United Utilities | Ingleborough Way/Bow Lane CSO | Bannister Brook | 37 | 75 h 20m | 3.12 |
| United Utilities | Cowling Lane/Leyland Lane CSO | River Lostock | 27 | 74 h 48m | 3.08 |
| United Utilities | Factory Lane CSO | Boundary Brook Riv Ribble | 13 | 72 h 38m | 3 |
| United Utilities | Blackmoor Road CSO | New Reed Brook | 16 | 61 h 10m | 2.54 |
| United Utilities | GOLDEN HILL LANE CSO | River Lostock | 26 | 54 h 2m | 2.25 |
| United Utilities | SCHOOL LANE CSO | Bannister Brook | 15 | 50 h 47m | 2.08 |
| United Utilities | CROSTON WwTW | River Yarrow | 11 | 49 h 8m | 2.04 |
| United Utilities | Behind 33 The Orchard CSO | River Lostock | 12 | 47 h | 1.96 |
| United Utilities | Robin Hood PS | Syd Brook | 8 | 41 h 5m | 1.71 |
| United Utilities | Park Avenue CSO (to Chapel Brook) | River Yarrow | 11 | 38 h 15m | 1.58 |
| United Utilities | Park Avenue CSO (to Yarrow) | River Yarrow | 14 | 36 h 13m | 1.5 |
| United Utilities | The Greenacres CSO | Unnamed Of Mill Brook | 13 | 33 h 10m | 1.38 |
| United Utilities | Preston Network Terminal Pumping Station (Site ID HOWCK) (PRE0125) | Tidal River Ribble | 10 | 32 h 41m | 1.33 |
| United Utilities | Leyland Lane (Seven Stars) CSO | Bannister Brook | 15 | 28 h 20m | 1.17 |
| United Utilities | FOWLER LANE / CROSTON ROAD CSO | River Lostock | 10 | 24 h 14m | 1 |
| United Utilities | Blackmoor Road CSO | New Reed Brook | 7 | 19 h 5m | 0.79 |
| United Utilities | Cowling Lane/Leyland Lane CSO | River Lostock | 15 | 17 h 48m | 0.71 |
| United Utilities | Cop Lane CSO | Of River Ribble | 5 | 16 h 30m | 0.67 |
| United Utilities | Leadale Road CSO | Bannister Brook | 3 | 14 h 24m | 0.58 |
| United Utilities | Rear of No. 24 Bispham Avenue CSO | River Lostock | 8 | 12 h 58m | 0.5 |
| United Utilities | Factory Lane CSO | Boundary Brook Riv Ribble | 3 | 12 h 55m | 0.5 |
| United Utilities | 74 Slater Lane (Leyland) CSO | River Lostock | 7 | 11 h 44m | 0.46 |
| United Utilities | Ingleborough Way/Bow Lane CSO | Bannister Brook | 10 | 11 h 16m | 0.46 |
| United Utilities | SOUTH PARK HALL / STOCKS LANE HESKIN CSO (123IK) | Syd Brook | 8 | 11 h 8m | 0.46 |
| United Utilities | Turpin Green Lane CSO | Bannister Brook | 12 | 8 h 25m | 0.33 |
| United Utilities | Fairfield Street CSO | River Lostock | 3 | 6 h 52m | 0.25 |
| United Utilities | Clifford Avenue CSO | Longton Brook | 5 | 5 h 26m | 0.21 |
| United Utilities | Behind 33 The Orchard CSO | River Lostock | 5 | 5 h 18m | 0.21 |
| United Utilities | GOLDEN HILL LANE CSO | River Lostock | 5 | 4 h 20m | 0.17 |
| United Utilities | Park Avenue CSO (to Yarrow) | River Yarrow | 7 | 4 h 6m | 0.17 |
| United Utilities | Towngate/ Fox Lane CSO | Cricketfield Brook Via Sws | 7 | 2 h 54m | 0.08 |
| United Utilities | SOUTH PARK HALL / STOCKS LANE HESKIN CSO (123IK) | Syd Brook | 4 | 2 h 32m | 0.08 |
| United Utilities | Valley Road PS | River Ribble | 6 | 2 h 30m | 0.08 |
| United Utilities | Leyland Lane (Seven Stars) CSO | Bannister Brook | 4 | 2 h 22m | 0.08 |
| United Utilities | Riverside Road CSO | River Ribble | 2 | 1 h 55m | 0.04 |
| United Utilities | Outside No. 50 Bispham Avenue | River Lostock | 1 | 1 h 20m | 0.04 |
| United Utilities | Preston Network Terminal Pumping Station (Site ID HOWCK) (PRE0125) | Tidal River Ribble | 2 | 0 h 39m | 0 |
| United Utilities | Turpin Green Lane CSO | Bannister Brook | 1 | 0 h 32m | 0 |
| United Utilities | FOWLER LANE / CROSTON ROAD CSO | River Lostock | 0 | 0 h | 0 |
| United Utilities | Towngate/ Fox Lane CSO | Cricketfield Brook Via Sws | 0 | 0 h | 0 |
| United Utilities | Riverside Road CSO | River Ribble | 0 | 0 h | 0 |
| United Utilities | The Greenacres CSO | Unnamed Of Mill Brook | 0 | 0 h | 0 |
| United Utilities | Leadale Road CSO | Bannister Brook | 0 | 0 h | 0 |
| United Utilities | Outside No. 50 Bispham Avenue | River Lostock | 0 | 0 h | 0 |
| United Utilities | Cop Lane CSO | Of River Ribble | 0 | 0 h | 0 |
| United Utilities | Fairfield Street CSO | River Lostock | 0 | 0 h | 0 |
| United Utilities | Valley Road PS | River Ribble | 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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org