Polluted by sewage 1,719 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 Warrington North, 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 | GLAZEBURY WwTW | River Glaze | 41 | 316 h 15m | 13.17 |
| United Utilities | Hey Shoot Lane CSO | River Glaze | 35 | 253 h 21m | 10.54 |
| United Utilities | Orford Park CSO | Longford Brook | 24 | 237 h 39m | 9.88 |
| United Utilities | Ravens Bridge Sewage PS | River Glaze | 30 | 144 h 47m | 6 |
| United Utilities | GLAZEBURY WwTW | River Glaze | 16 | 125 h 42m | 5.21 |
| United Utilities | Junction of Mill Lane & Winwick Road CSO | Mill Brook | 11 | 100 h 11m | 4.17 |
| United Utilities | Hey Shoot Lane CSO | River Glaze | 12 | 93 h 40m | 3.88 |
| United Utilities | Mill House Lane CSO | Cock Shot Brook | 21 | 84 h 48m | 3.5 |
| United Utilities | Warrington Road (Risley) PS | Un Cross Brook | 12 | 62 h 36m | 2.58 |
| United Utilities | Moss Lane CSO | Glaze Brook | 15 | 62 h 14m | 2.58 |
| United Utilities | Orford Park CSO | Longford Brook | 6 | 41 h 44m | 1.71 |
| United Utilities | Warrington Road (Risley) PS | Un Cross Brook | 5 | 34 h 22m | 1.42 |
| United Utilities | Ravens Bridge Sewage PS | River Glaze | 8 | 29 h 17m | 1.21 |
| United Utilities | Paddington PS | River Mersey | 14 | 28 h 21m | 1.17 |
| United Utilities | Wharf Street CSO | River Mersey | 3 | 24 h 16m | 1 |
| United Utilities | Mill House Lane CSO | Cock Shot Brook | 4 | 19 h 16m | 0.79 |
| United Utilities | Pennington Lane CSO | Sankey Brook | 4 | 12 h 48m | 0.5 |
| United Utilities | Junction Alder Lane/North Avenue CSO | Longford Brook Via Sws | 4 | 10 h 34m | 0.42 |
| United Utilities | Junction Alder Lane/North Avenue CSO | Longford Brook Via Sws | 2 | 9 h 12m | 0.38 |
| United Utilities | Paddington PS | River Mersey | 7 | 7 h 25m | 0.29 |
| United Utilities | Junction of Mill Lane & Winwick Road CSO | Mill Brook | 1 | 6 h 12m | 0.25 |
| United Utilities | Wharf Road | Sankey Brook | 1 | 5 h 24m | 0.21 |
| United Utilities | Moss Lane CSO | Glaze Brook | 1 | 5 h 19m | 0.21 |
| United Utilities | Warrington Road/Withington Avenue | Glaze | 1 | 4 h | 0.17 |
| United Utilities | Pennington Lane CSO | Sankey Brook | 0 | 0 h | 0 |
| United Utilities | Warrington Road/Withington Avenue | Glaze | 0 | 0 h | 0 |
| United Utilities | Glazebrook Lane CSO | Glaze Brook | 0 | 0 h | 0 |
| United Utilities | Sankey Ind Est CSO (428NI) | Sankey Brook | 0 | 0 h | 0 |
| United Utilities | Wharf Road | Sankey Brook | 0 | 0 h | 0 |
| United Utilities | Sankey Ind Est CSO (428NI) | Sankey Brook | 0 | 0 h | 0 |
| United Utilities | Wharf Street CSO | River Mersey | 0 | 0 h | 0 |
| United Utilities | Glazebrook Lane CSO | Glaze 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.