United Utilities

was responsible for 69,245 sewage overflows in 2022
On average 189.7 times a day

These lasted for 425,490 hours (That's 49.25 years!) - in 1,670 different locations across their service area

Worst Locations United Utilities

1. PLUMBLAND WWTW

Workington polluted for 6,896 hours, into River Ellen

339 incidents

That's 9.58 months.

6.5 times a week, on average

2. KIRK BAMPTON WWTW (KIRKB)

Workington polluted for 6,279 hours, into Burghmoor Beck

445 incidents

That's 8.72 months.

On average 1.2 times a day

3. ST PAUL'S ROAD CSO

Birkenhead polluted for 5,582 hours, into Mersey Estuary

240 incidents

That's 7.75 months.

4.6 times a week, on average

4. LUNE STREET PUMPING STATION 25030

Morecambe and Lunesdale polluted for 5,336 hours, into River Lune Estuarine Waters

226 incidents

That's 7.41 months.

4.3 times a week, on average

5. ORTON STW

Penrith and The Border polluted for 4,762 hours, into Chapel Beck

271 incidents

That's 6.61 months.

5.2 times a week, on average

6. STAVELEY WWTW

Westmorland and Lonsdale polluted for 4,629 hours, into River Kent

376 incidents

That's 6.43 months.

On average 1 times a day

Water Companies

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales

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.