How does each water company compare? These are the totals by company for each. The totals are really high, counting things in hours doesn't make it very easy to think about. Here we show how many years of continuous sewage dumps happened in a single year, by water company.
It isn't like there are just a few outliers... the problem exists across the entire estate of water assets. Here we show a 'cumulative frequency diagram' - where the number of CSOs that dumped sewage for a time, or longer, is shown. You can see that many CSOs dumped sewage into a river for months and months.
Northumbrian Water is highlighted in the plot below
North Tyneside polluted for 5,288 hours, into River Tyne Saline Estuary
453 incidents
That's 7.34 months.
On average 1.2 times a day
Bishop Auckland polluted for 3,674 hours, into River Balder
223 incidents
That's 5.1 months.
4.3 times a week, on average
Richmond (Yorks) polluted for 2,888 hours, into Forcett Beck
209 incidents
That's 4.01 months.
4 times a week, on average
Hexham polluted for 2,822 hours, into River North Tyne
203 incidents
That's 3.92 months.
3.9 times a week, on average
Wansbeck polluted for 2,740 hours, into Blyth Saline Estuary
148 incidents
That's 3.81 months.
2.8 times a week, on average
North West Durham polluted for 2,562 hours, into Wear
147 incidents
That's 3.56 months.
2.8 times a week, on average
That's 1.55 years!
1,485 incidents
On average 4.1 times a day
That's 1.45 years!
1,675 incidents
On average 4.6 times a day
That's 1.42 years!
1,855 incidents
On average 5.1 times a day
That's 10.43 months.
990 incidents
On average 2.7 times a day
That's 7.42 months.
1,041 incidents
On average 2.9 times a day
That's 6.74 months.
565 incidents
On average 1.5 times a day
That's 1.51 months.
679 incidents
On average 1.9 times a day
That's 1.47 months.
102 incidents
2 times a week, on average
That's 1.34 months.
194 incidents
3.7 times a week, on average
That's 1.26 months.
81 incidents
1.6 times a week, on average
That's 1.03 months.
112 incidents
2.2 times a week, on average
That's 25.08 days.
103 incidents
2 times a week, on average
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.
