Northumbrian Water

was responsible for 29,697 sewage overflows in 2022
On average 81.4 times a day

These lasted for 107,536 hours (That's 12.45 years!) - in 1,255 different locations across their service area

Worst Locations Northumbrian Water

1. COLWELL STW

Hexham polluted for 4,736 hours, into Coal Burn

235 incidents

That's 6.58 months.

4.5 times a week, on average

2. HOWDON STW

North Tyneside polluted for 2,849 hours, into River Tyne Saline Estuary

338 incidents

That's 3.96 months.

6.5 times a week, on average

3. ALLENDALE STW

Hexham polluted for 2,692 hours, into River East Allen

142 incidents

That's 3.74 months.

2.7 times a week, on average

4. BELLINGHAM STW

Hexham polluted for 2,606 hours, into River North Tyne

172 incidents

That's 3.62 months.

3.3 times a week, on average

5. WAGONWAY ROAD PUMPING STATION

Jarrow polluted for 1,401 hours, into River Tyne Saline Estuary

132 incidents

That's 1.95 months.

2.5 times a week, on average

6. FELTON STW

Berwick-upon-Tweed polluted for 1,369 hours, into Coquet

150 incidents

That's 1.9 months.

2.9 times a week, on average

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.