Polluted by sewage 1,413 hours in 2025
Your local MP is Iain Duncan Smith (Conservative) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Chingford and Woodford Green, 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.
We managed to raise ยฃ150 in 2024. That's not enough to keep the site running. Please consider a one-off or small recurring donation.
Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| Thames Water | Ray lodge road XX | To River Roding | 61 | 645 h 30m | 26.88 |
| Thames Water | Beech hall crescent, walthamstow | Ching Brook | 52 | 584 h | 24.33 |
| Thames Water | Prospect road , woodford oxford road | Wells Brook | 21 | 58 h 45m | 2.42 |
| Thames Water | Luxborough Lane | N/A | 3 | 36 h 16m | 1.5 |
| Thames Water | Ray lodge road XX | To River Roding | 11 | 31 h | 1.29 |
| Thames Water | Beech hall crescent, walthamstow | Ching Brook | 8 | 15 h 45m | 0.62 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 7 (CAVENDISH AVENUE) TQ40916107 CSO | Roding | 16 | 11 h 52m | 0.46 |
| Thames Water | Bancroft rugby ground, buckhurst hill | River Roding | 3 | 7 h 50m | 0.29 |
| Thames Water | Prospect road , woodford Monkhams lane | Wells Brook | 5 | 5 h 45m | 0.21 |
| Thames Water | Worcester crescent | River Roding | 6 | 5 h 30m | 0.21 |
| Thames Water | Princes avenue | River Roding | 6 | 5 h | 0.21 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 7 (CAVENDISH AVENUE) TQ40916107 CSO | Roding | 1 | 1 h 26m | 0.04 |
| Thames Water | Hillside avenue | River Roding | 2 | 1 h 15m | 0.04 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE X (MALLARDS ROAD) TQ40918001 CSO | Roding | 2 | 0 h 46m | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 2 (ST BARNABAS ROAD) TQ40919012 CSO | Roding | 2 | 0 h 42m | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 8 (THE VALE) TQ40912012 CSO | Roding | 3 | 0 h 40m | 0 |
| Thames Water | Prospect road , woodford oxford road | Wells Brook | 1 | 0 h 30m | 0 |
| Thames Water | Kings avenue | River Roding | 1 | 0 h 30m | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 3 (CAVENDISH AVENUE) TQ40917002 CSO | Roding | 1 | 0 h 6m | 0 |
| Thames Water | Hillside avenue | River Roding | 0 | 0 h | 0 |
| Thames Water | Princes avenue | River Roding | 0 | 0 h | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 2 (ST BARNABAS ROAD) TQ40919012 CSO | Roding | 0 | 0 h | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 8 (THE VALE) TQ40912012 CSO | Roding | 0 | 0 h | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE X (MALLARDS ROAD) TQ40918001 CSO | Roding | 0 | 0 h | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 5 (ST ALBANS ROAD) TQ40910111 CSO | Roding | 0 | 0 h | 0 |
| Thames Water | Kings avenue | River Roding | 0 | 0 h | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 5 (ST ALBANS ROAD) TQ40910111 CSO | Roding | 0 | 0 h | 0 |
| Thames Water | Worcester crescent | River Roding | 0 | 0 h | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 4 (SALWAY GARDENS) TQ40914102 CSO | Roding | 0 | 0 h | 0 |
| Thames Water | Prospect road , woodford Monkhams lane | Wells Brook | 0 | 0 h | 0 |
| Thames Water | WINN VALLEY SPS LB REDBRIDGE 3 (CAVENDISH AVENUE) TQ40917002 CSO | Roding | 0 | 0 h | 0 |
| Thames Water | Luxborough Lane | N/A | 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.