Severn Trent Water

was responsible for 44,765 sewage overflows in 2022
On average 122.6 times a day

These lasted for 249,115 hours (That's 28.83 years!) - in 1,948 different locations across their service area

Worst Locations Severn Trent Water

1. WHISSENDINE WWTW

Rutland and Melton polluted for 6,646 hours, into Whissendine Brook

318 incidents

That's 9.23 months.

6.1 times a week, on average

2. BURTON ROAD COMBINED SEWER OVERFLOW

South Derbyshire polluted for 4,063 hours, into Stanton Brook

192 incidents

That's 5.64 months.

3.7 times a week, on average

3. BLOCKLEY SEWAGE TREATMENT WORKS

The Cotswolds polluted for 3,296 hours, into Blockley Brook

156 incidents

That's 4.58 months.

3 times a week, on average

4. ADJACENT TO RADBROOK CSO

Shrewsbury and Atcham polluted for 2,592 hours, into River Severn

136 incidents

That's 3.6 months.

2.6 times a week, on average

5. CROWLE STW

Mid Worcestershire polluted for 2,189 hours, into Bow Brook

123 incidents

That's 3.04 months.

2.4 times a week, on average

6. DONINGTON-LE-HEATH TOWNSEND LN CSO

North West Leicestershire polluted for 1,976 hours, into River Sence

206 incidents

That's 2.74 months.

4 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.