Polluted by sewage 1,638 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 Crewe and Nantwich, 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 | Beam Bridge PS | River Weaver | 51 | 511 h 12m | 21.29 |
| United Utilities | Beam Bridge PS | River Weaver | 30 | 449 h 28m | 18.71 |
| United Utilities | CHURCH LANE CSO (Crewe) | Wistaton Brook | 37 | 228 h 38m | 9.5 |
| United Utilities | CHURCH LANE CSO (Crewe) | Wistaton Brook | 18 | 166 h 7m | 6.92 |
| United Utilities | Queens Park Drive (Crewe) CSO | Valley Brook | 19 | 70 h 52m | 2.92 |
| United Utilities | Woodside House CSO (169KP) | Dragley Beck | 12 | 33 h 40m | 1.38 |
| United Utilities | Bradeley Hall Road CSO | Fowle Brook Via Sws | 14 | 26 h 30m | 1.08 |
| United Utilities | Queens Park Drive (Crewe) CSO | Valley Brook | 7 | 21 h 48m | 0.88 |
| United Utilities | Wistaston Road CSO | Valley Brook | 16 | 21 h 12m | 0.88 |
| United Utilities | Bradeley Hall Road CSO | Fowle Brook Via Sws | 8 | 21 h 4m | 0.88 |
| United Utilities | DENVER AVENUE / ALTON STREET CSO | Valley Brook | 12 | 18 h 54m | 0.75 |
| United Utilities | Wistaston Road CSO | Valley Brook | 6 | 12 h 40m | 0.5 |
| United Utilities | FLAG LANE No1 CSO | Valley Brook | 17 | 11 h 46m | 0.46 |
| United Utilities | Junction of Hungerford Road and Laureston Avenue CSO | Drain, Valley Brook | 6 | 8 h 54m | 0.33 |
| United Utilities | Frank Webb Avenue CSO | Leighton Brook | 7 | 7 h 20m | 0.29 |
| United Utilities | Pusey Dale PS | Borsdane Brook | 3 | 6 h 40m | 0.25 |
| United Utilities | Junction of Hungerford Road and Laureston Avenue CSO | Drain, Valley Brook | 4 | 4 h 46m | 0.17 |
| United Utilities | Pusey Dale PS | Borsdane Brook | 1 | 2 h 34m | 0.08 |
| United Utilities | EDLESTON ROAD No1 CSO | Valley Brook | 6 | 2 h 30m | 0.08 |
| United Utilities | FLAG LANE NO2 CSO | Valley Brook | 7 | 2 h 30m | 0.08 |
| United Utilities | Frank Webb Avenue CSO | Leighton Brook | 1 | 2 h 29m | 0.08 |
| United Utilities | FLAG LANE No1 CSO | Valley Brook | 3 | 2 h 4m | 0.08 |
| United Utilities | Alton Street No.2 CSO | Valley Brook | 1 | 1 h 46m | 0.04 |
| United Utilities | FLAG LANE NO2 CSO | Valley Brook | 1 | 1 h | 0.04 |
| United Utilities | Alton Street CSO | Valley Brook | 2 | 0 h 50m | 0 |
| United Utilities | Alton Street No.2 CSO | Valley Brook | 4 | 0 h 44m | 0 |
| United Utilities | DENVER AVENUE / ALTON STREET CSO | Valley Brook | 1 | 0 h 44m | 0 |
| United Utilities | Mill Street CSO | Valley Brook | 1 | 0 h 8m | 0 |
| United Utilities | MILL STREET CSO | Valley Brook | 0 | 0 h | 0 |
| United Utilities | Mill Street CSO | Valley Brook | 0 | 0 h | 0 |
| United Utilities | Woodside House CSO (169KP) | Dragley Beck | 0 | 0 h | 0 |
| United Utilities | MILL STREET CSO | Valley Brook | 0 | 0 h | 0 |
| United Utilities | Queens Park Golf Club CSO | Valley Brook Via Sws | 0 | 0 h | 0 |
| United Utilities | Edleston Road No 2 CSO | Valley Brook | 0 | 0 h | 0 |
| United Utilities | Edleston Road No 2 CSO | Valley Brook | 0 | 0 h | 0 |
| United Utilities | Queens Park Golf Club CSO | Valley Brook Via Sws | 0 | 0 h | 0 |
| United Utilities | EDLESTON ROAD No1 CSO | Valley Brook | 0 | 0 h | 0 |
| United Utilities | Alton Street CSO | Valley Brook | 0 | 0 h | 0 |
| United Utilities | London Road (Nantwich) Combined Sewer Overflow (Site ID 162C7) (CRE0081) | Storm Culvert Into R Ribble | 0 | 0 h | 0 |
| United Utilities | London Road (Nantwich) Combined Sewer Overflow (Site ID 162C7) (CRE0081) | Storm Culvert Into R 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.