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Here are all the reported sewage overflow totals for River Derwent in 2025. Sometimes sewage can be being dumped for months at a time.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Northumbrian Water | River Derwent | MARKET LANE CSO | 76 | 368 | 99.7 |
| Northumbrian Water | River Derwent | CONSETT STW | 46 | 304 | 99.9 |
| Northumbrian Water | River Derwent | LOCKHAUGH STW | 67 | 238 | 99.75 |
| Northumbrian Water | River Derwent | RIVERSIDEWAY CSO | 29 | 195 | 74.2 |
| Northumbrian Water | River Derwent | EBCHESTER SPS | 32 | 119 | 100 |
| Northumbrian Water | River Derwent | ARMONSIDE RD CONNOLLY TERRACE CSO | 22 | 99 | 94.2 |
| Northumbrian Water | River Derwent | RGIL LOCKHAUGH RD & SHRBURN PRK CSO | 25 | 46 | 99.5 |
| Northumbrian Water | River Derwent | PENNINE VIEW CSO | 11 | 42 | 99.6 |
| Northumbrian Water | River Derwent | BLANCHLAND STW | 5 | 20 | 100 |
| Northumbrian Water | River Derwent | CHARE BANK CSO | 19 | 18 | 100 |
| Northumbrian Water | River Derwent | SHOTLEY BRIDGE CSO DER0004 | 12 | 9 | 99.5 |
| Northumbrian Water | River Derwent | CHOPWELL ROAD CSO | 5 | 1 | 93.4 |
| Northumbrian Water | River Derwent | TAY STREET CSO | 2 | 0 | 99.4 |
| Northumbrian Water | River Derwent | WEST LANE SCHOOL CSO | 1 | 0 | 77.1 |
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