Derwent polluted by sewage 237 times in 2024 - lasting 820 hours

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Totals for Derwent in 2024
10 Sites polluted by Northumbrian Water
237 sewage dumps
820 h duration
That's 1.14 months. 4.6 times a week, on average

Pollution Summary 2024

Here are all the reported sewage overflow totals for Derwent in 2024. Sometimes sewage can be being dumped for months at a time.

These numbers are very slightly different from the Rivers page. We're working on it.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Northumbrian Water Derwent HAMSTERLEY COLLIERY PS 49 338 100
Northumbrian Water Derwent GREEN BRIDGE CSO (DER 137) 26 151 100
Northumbrian Water Derwent JUNCTION OF HEXHAM RD & 55 102 91.6
Northumbrian Water Derwent STATION ROAD CSO G020 35 93 95.6
Northumbrian Water Derwent SNOWS GREEN ROAD CSO (DER010) 11 52 99.7
Northumbrian Water Derwent, DIPWOOD ROAD CSO GO16 26 38 58.4
Northumbrian Water Derwent DERWENT CARAVAN PARK PUMPING STN 8 19 100
Northumbrian Water Derwent OLD DERWENT BRIDGE CSO 8 10 99.5
Northumbrian Water Derwent, BRIARDENE 9 6 99.2
Northumbrian Water Derwent, HIGH FRIARSIDE CSO 10 5 92.8
Northumbrian Water Derwent PARKGATE FARM CSO 0 0 100
Northumbrian Water Derwent DERWENTSIDE HOUSE CSO 0 0 96.6

Data Sources & Accuracy

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. This 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.